From d2e9401b18925b5702c5c758af7d4f5b61deb493 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 May 2023 08:44:54 +0200 Subject: Adding upstream version 12.2.0. Signed-off-by: Daniel Baumann --- CHANGELOG.md | 70 + README.md | 7 +- docs/search.js | 2 +- docs/sqlglot.html | 467 +- docs/sqlglot/dataframe/sql.html | 38 +- docs/sqlglot/dialects.html | 14 +- docs/sqlglot/dialects/bigquery.html | 1425 +- docs/sqlglot/dialects/clickhouse.html | 3 +- docs/sqlglot/dialects/databricks.html | 92 +- docs/sqlglot/dialects/dialect.html | 1727 +- docs/sqlglot/dialects/drill.html | 102 +- docs/sqlglot/dialects/duckdb.html | 1057 +- docs/sqlglot/dialects/hive.html | 1497 +- docs/sqlglot/dialects/mysql.html | 554 +- docs/sqlglot/dialects/oracle.html | 848 +- docs/sqlglot/dialects/postgres.html | 1372 +- docs/sqlglot/dialects/presto.html | 986 +- docs/sqlglot/dialects/redshift.html | 75 +- docs/sqlglot/dialects/snowflake.html | 776 +- docs/sqlglot/dialects/spark.html | 740 +- docs/sqlglot/dialects/spark2.html | 1271 ++ docs/sqlglot/dialects/sqlite.html | 601 +- docs/sqlglot/dialects/starrocks.html | 60 +- docs/sqlglot/dialects/tableau.html | 78 +- docs/sqlglot/dialects/teradata.html | 244 +- docs/sqlglot/dialects/trino.html | 3 +- docs/sqlglot/dialects/tsql.html | 304 +- docs/sqlglot/executor/python.html | 3 +- docs/sqlglot/expressions.html | 19809 +++++++++++-------- docs/sqlglot/generator.html | 5938 +++--- docs/sqlglot/lineage.html | 2 +- docs/sqlglot/optimizer/annotate_types.html | 8 +- docs/sqlglot/optimizer/eliminate_joins.html | 4 +- docs/sqlglot/optimizer/expand_laterals.html | 8 +- docs/sqlglot/optimizer/normalize.html | 20 +- docs/sqlglot/optimizer/optimizer.html | 248 +- docs/sqlglot/optimizer/qualify_columns.html | 1469 +- docs/sqlglot/optimizer/simplify.html | 1366 +- docs/sqlglot/parser.html | 16436 +++++++-------- docs/sqlglot/tokens.html | 3788 ++-- docs/sqlglot/transforms.html | 504 +- sqlglot/__init__.py | 4 +- sqlglot/dataframe/sql/functions.py | 4 +- sqlglot/dialects/__init__.py | 1 + sqlglot/dialects/bigquery.py | 51 +- sqlglot/dialects/clickhouse.py | 20 +- sqlglot/dialects/databricks.py | 11 +- sqlglot/dialects/dialect.py | 42 +- sqlglot/dialects/drill.py | 3 +- sqlglot/dialects/duckdb.py | 66 +- sqlglot/dialects/hive.py | 45 +- sqlglot/dialects/mysql.py | 3 +- sqlglot/dialects/oracle.py | 13 +- sqlglot/dialects/postgres.py | 18 +- sqlglot/dialects/presto.py | 30 +- sqlglot/dialects/redshift.py | 4 +- sqlglot/dialects/snowflake.py | 4 +- sqlglot/dialects/spark.py | 240 +- sqlglot/dialects/spark2.py | 238 + sqlglot/dialects/sqlite.py | 43 +- sqlglot/dialects/starrocks.py | 1 + sqlglot/dialects/tableau.py | 3 +- sqlglot/dialects/teradata.py | 3 +- sqlglot/dialects/tsql.py | 11 +- sqlglot/expressions.py | 225 +- sqlglot/generator.py | 64 +- sqlglot/optimizer/eliminate_joins.py | 2 +- sqlglot/optimizer/expand_laterals.py | 4 +- sqlglot/optimizer/normalize.py | 2 + sqlglot/optimizer/optimizer.py | 2 - sqlglot/optimizer/qualify_columns.py | 26 +- sqlglot/optimizer/qualify_tables.py | 18 +- sqlglot/optimizer/scope.py | 6 + sqlglot/optimizer/simplify.py | 17 +- sqlglot/parser.py | 121 +- sqlglot/tokens.py | 95 +- sqlglot/transforms.py | 70 +- tests/dataframe/integration/dataframe_validator.py | 6 +- tests/dialects/test_bigquery.py | 38 +- tests/dialects/test_clickhouse.py | 21 + tests/dialects/test_dialect.py | 4 +- tests/dialects/test_duckdb.py | 27 +- tests/dialects/test_mysql.py | 126 +- tests/dialects/test_oracle.py | 18 +- tests/dialects/test_postgres.py | 76 +- tests/dialects/test_presto.py | 45 +- tests/dialects/test_redshift.py | 15 + tests/dialects/test_snowflake.py | 31 +- tests/dialects/test_spark.py | 47 +- tests/dialects/test_starrocks.py | 8 + tests/dialects/test_tsql.py | 12 +- tests/fixtures/identity.sql | 6 + tests/fixtures/optimizer/qualify_columns.sql | 7 + tests/fixtures/optimizer/qualify_tables.sql | 23 + tests/fixtures/optimizer/tpc-ds/tpc-ds.sql | 16 + tests/test_build.py | 19 +- tests/test_expressions.py | 5 +- tests/test_optimizer.py | 13 + tests/test_tokens.py | 11 + tests/test_transpile.py | 17 +- 100 files changed, 35213 insertions(+), 30904 deletions(-) create mode 100644 docs/sqlglot/dialects/spark2.html create mode 100644 sqlglot/dialects/spark2.py diff --git a/CHANGELOG.md b/CHANGELOG.md index 5397e01..d499c14 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,6 +1,72 @@ Changelog ========= +## [v12.1.0] - 2023-05-05 +### :bug: Bug Fixes +- [`0b46fa6`](https://github.com/tobymao/sqlglot/commit/0b46fa69f440e3756266f22c25136efc503209c2) - remove bigquery workaround for values type inference *(commit by [@tobymao](https://github.com/tobymao))* +- [`dfae784`](https://github.com/tobymao/sqlglot/commit/dfae784159499159602b6d518d48f0a501e32e25) - sqlite no table options closes [#1553](https://github.com/tobymao/sqlglot/pull/1553) *(commit by [@tobymao](https://github.com/tobymao))* +- [`aef9cfa`](https://github.com/tobymao/sqlglot/commit/aef9cfa9c4dd29ac637d23737b74b0239f253a84) - double json spark closes [#1547](https://github.com/tobymao/sqlglot/pull/1547) *(commit by [@tobymao](https://github.com/tobymao))* + +### :wrench: Chores +- [`7e5cede`](https://github.com/tobymao/sqlglot/commit/7e5cede6afc906dcb00eaaf5e9061a042f18a912) - cleanup bigquery transform *(commit by [@tobymao](https://github.com/tobymao))* + + +## [v12.0.0] - 2023-05-04 +### :sparkles: New Features +- [`862cbeb`](https://github.com/tobymao/sqlglot/commit/862cbeb2f48ccc004fbc06eacd55b331faeeac9b) - Use alternative transform for dialects that do not support distinct on *(PR [#1524](https://github.com/tobymao/sqlglot/pull/1524) by [@crericha](https://github.com/crericha))* +- [`52c80e0`](https://github.com/tobymao/sqlglot/commit/52c80e00f6498c438ef519058b4494a67f83c270) - Support regex function in Starrocks *(PR [#1528](https://github.com/tobymao/sqlglot/pull/1528) by [@acreux](https://github.com/acreux))* +- [`00b4779`](https://github.com/tobymao/sqlglot/commit/00b47798bce06f43c70ee48a907261a3d666f342) - **spark**: new Spark2 dialect, improve DATEDIFF sql generation BREAKING *(PR [#1529](https://github.com/tobymao/sqlglot/pull/1529) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`e2593ba`](https://github.com/tobymao/sqlglot/commit/e2593baf806a7c51cc089e280e3aa83983f1e82d) - Add BYTES type to BigQuery dialect *(PR [#1536](https://github.com/tobymao/sqlglot/pull/1536) by [@relud](https://github.com/relud))* + - :arrow_lower_right: *addresses issue [#1533](undefined) opened by [@relud](https://github.com/relud)* +- [`911e4e9`](https://github.com/tobymao/sqlglot/commit/911e4e9cfaf30d35eee06b23a2b1a4fe4f1c1ff2) - distinct on builder *(commit by [@tobymao](https://github.com/tobymao))* + +### :bug: Bug Fixes +- [`5c26f56`](https://github.com/tobymao/sqlglot/commit/5c26f56ad6f1814b543c81d9e8263ebfd11a5634) - windowspec generator *(commit by [@tobymao](https://github.com/tobymao))* +- [`e7111ba`](https://github.com/tobymao/sqlglot/commit/e7111ba6afdb67ae7be52cf39384d7bcb86a8dac) - **trino**: wrap SEQUENCE in an UNNEST call if used as a source *(PR [#1527](https://github.com/tobymao/sqlglot/pull/1527) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`3d964c6`](https://github.com/tobymao/sqlglot/commit/3d964c623e3ec3972161a9e3e69294bc12fdb8b8) - use preprocess instead of expanding transform dicts BREAKING *(PR [#1525](https://github.com/tobymao/sqlglot/pull/1525) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`5fc27d3`](https://github.com/tobymao/sqlglot/commit/5fc27d351412063493f66576d7b0c1a0c350c76b) - trim with double pipes *(commit by [@tobymao](https://github.com/tobymao))* +- [`9778c16`](https://github.com/tobymao/sqlglot/commit/9778c168d57fcd886d1653df10e75df59722ce1b) - create table options for bigquery closes [#1531](https://github.com/tobymao/sqlglot/pull/1531) *(commit by [@tobymao](https://github.com/tobymao))* +- [`55dc509`](https://github.com/tobymao/sqlglot/commit/55dc5098e9ccac3ae5757948e3e1575a1ae2b732) - **bigquery**: allow 2nd argument for PERCENTILE_[CONT|DISC] *(PR [#1537](https://github.com/tobymao/sqlglot/pull/1537) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1534](undefined) opened by [@relud](https://github.com/relud)* +- [`5c59747`](https://github.com/tobymao/sqlglot/commit/5c59747db3beed334b4a34e04856780d2f842ea3) - qualifying correlated subqueries *(commit by [@tobymao](https://github.com/tobymao))* +- [`19c0490`](https://github.com/tobymao/sqlglot/commit/19c04903a5143971f31261ba01bdc7ee2acf37aa) - parse unnest array type closes [#1532](https://github.com/tobymao/sqlglot/pull/1532) *(commit by [@tobymao](https://github.com/tobymao))* +- [`51ca411`](https://github.com/tobymao/sqlglot/commit/51ca411b0708563bca815b9709cb927e0c768403) - expand laterals first if no schema is present *(commit by [@tobymao](https://github.com/tobymao))* +- [`abfbce2`](https://github.com/tobymao/sqlglot/commit/abfbce2c79e1af956033e759bd6a5a87038f2c4c) - bigquery udf existing func clash closes [#1535](https://github.com/tobymao/sqlglot/pull/1535) *(commit by [@tobymao](https://github.com/tobymao))* +- [`444dd94`](https://github.com/tobymao/sqlglot/commit/444dd948af23a88db83491be432573ac852dd324) - **Spark**: Add DOUBLE, FLOAT cast functions *(PR [#1530](https://github.com/tobymao/sqlglot/pull/1530) by [@vegarsti](https://github.com/vegarsti))* +- [`0578d6d`](https://github.com/tobymao/sqlglot/commit/0578d6d3b168a4cfac67e297f29f44ad67c51cda) - **oracle**: allow parsing of @dblink in table names *(PR [#1540](https://github.com/tobymao/sqlglot/pull/1540) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1539](undefined) opened by [@Pizzi95](https://github.com/Pizzi95)* +- [`b7e08cc`](https://github.com/tobymao/sqlglot/commit/b7e08cc88a6d91057aeb9b81a4aa3efa6c81ee8f) - **duckdb**: parse DATEDIFF correctly *(PR [#1546](https://github.com/tobymao/sqlglot/pull/1546) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`f21abb7`](https://github.com/tobymao/sqlglot/commit/f21abb79efb09658502bff397e453593f4fd3471) - **oracle**: set post_tablesample_alias=True to fix alias parsing *(PR [#1548](https://github.com/tobymao/sqlglot/pull/1548) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1541](undefined) opened by [@Pizzi95](https://github.com/Pizzi95)* +- [`8ebba48`](https://github.com/tobymao/sqlglot/commit/8ebba48eca51122ad647f9d83fb99ae7a58bc8b3) - binary_double/float types closes [#1543](https://github.com/tobymao/sqlglot/pull/1543) *(commit by [@tobymao](https://github.com/tobymao))* +- [`2a6a3e7`](https://github.com/tobymao/sqlglot/commit/2a6a3e7f2aafff29937d8ff1a1a296ffcb5d9dec) - make some SQL builders pure *(PR [#1526](https://github.com/tobymao/sqlglot/pull/1526) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`99310c4`](https://github.com/tobymao/sqlglot/commit/99310c434494e1dd302bac907e51daadfa7fa01e) - **duckdb**: remove parentheses from CurrentTimestamp, CurrentDate *(PR [#1551](https://github.com/tobymao/sqlglot/pull/1551) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1550](undefined) opened by [@BTheunissen](https://github.com/BTheunissen)* +- [`a113685`](https://github.com/tobymao/sqlglot/commit/a11368522ec527bce9ecfb63796689b52ba814d5) - **spark**: cast UnixToTime to TIMESTAMP BREAKING *(PR [#1549](https://github.com/tobymao/sqlglot/pull/1549) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1545](undefined) opened by [@joshmarcus](https://github.com/joshmarcus)* + +### :wrench: Chores +- [`d2f2e80`](https://github.com/tobymao/sqlglot/commit/d2f2e8093091a132dbaea8d6dd5b14b91e3c3f12) - test 3.11 *(commit by [@tobymao](https://github.com/tobymao))* + + +## [v11.7.0] - 2023-05-02 +### :sparkles: New Features +- [`20cacba`](https://github.com/tobymao/sqlglot/commit/20cacba59b697c70986baac3e3176875893e16e1) - **tsql, oracle**: add support for NEXT VALUE FOR clause *(PR [#1521](https://github.com/tobymao/sqlglot/pull/1521) by [@GeorgeSittas](https://github.com/GeorgeSittas))* +- [`96bb150`](https://github.com/tobymao/sqlglot/commit/96bb150fa3ef3d58cbae8003b3f29f9690cbe481) - builder methods for basic ops *(PR [#1516](https://github.com/tobymao/sqlglot/pull/1516) by [@tobymao](https://github.com/tobymao))* +- [`e11a5ce`](https://github.com/tobymao/sqlglot/commit/e11a5cef9dc2c8c59e1290013c29a4137e07c8aa) - add case when change func to parse BREAKING *(commit by [@tobymao](https://github.com/tobymao))* +- [`455b9e9`](https://github.com/tobymao/sqlglot/commit/455b9e9db1a1b8518a5a772c18f8a4bcec3b96fd) - **oracle**: support KEEP (.. [FIRST|LAST] ..) window function syntax *(PR [#1522](https://github.com/tobymao/sqlglot/pull/1522) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *addresses issue [#1520](undefined) opened by [@Pizzi95](https://github.com/Pizzi95)* + +### :bug: Bug Fixes +- [`94fed8c`](https://github.com/tobymao/sqlglot/commit/94fed8c8ca171ecece53ea2fd72db6a37dfc73ec) - call _parse_bitwise as a fallback for nested type args *(PR [#1515](https://github.com/tobymao/sqlglot/pull/1515) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + - :arrow_lower_right: *fixes issue [#1514](undefined) opened by [@ethack](https://github.com/ethack)* +- [`52ab03d`](https://github.com/tobymao/sqlglot/commit/52ab03d41aba8a48e5b3b3688e9530a645cac1c7) - array with method calls *(commit by [@tobymao](https://github.com/tobymao))* +- [`c3db2b8`](https://github.com/tobymao/sqlglot/commit/c3db2b8a8f1c9f694f31631fc0f185c735dab768) - allow parsing 'if' as an identifier *(PR [#1517](https://github.com/tobymao/sqlglot/pull/1517) by [@GeorgeSittas](https://github.com/GeorgeSittas))* + +### :wrench: Chores +- [`d5d360a`](https://github.com/tobymao/sqlglot/commit/d5d360a18a481804bbcee388a07c32c59ea46d4e) - Remove older CHANGELOG entries and let CI handle it from now on *(commit by [@GeorgeSittas](https://github.com/GeorgeSittas))* + + ## [v11.6.3] - 2023-05-01 ### :sparkles: New Features - [`80287dd`](https://github.com/tobymao/sqlglot/commit/80287dd290e9076ce5981ea440dc193df27e0d46) - **presto**: transpile explode/posexplode into (cross join) unnest *(PR [#1501](https://github.com/tobymao/sqlglot/pull/1501) by [@GeorgeSittas](https://github.com/GeorgeSittas))* @@ -22,3 +88,7 @@ Changelog [v11.6.3]: https://github.com/tobymao/sqlglot/compare/v11.6.2...v11.6.3 + +[v11.7.0]: https://github.com/tobymao/sqlglot/compare/v11.6.3...v11.7.0 +[v12.0.0]: https://github.com/tobymao/sqlglot/compare/v11.7.1...v12.0.0 +[v12.1.0]: https://github.com/tobymao/sqlglot/compare/v12.0.0...v12.1.0 \ No newline at end of file diff --git a/README.md b/README.md index 91676d1..73578dc 100644 --- a/README.md +++ b/README.md @@ -283,9 +283,10 @@ print( ```sql SELECT ( - "x"."a" OR "x"."b" OR "x"."c" - ) AND ( - "x"."a" OR "x"."b" OR "x"."d" + "x"."a" <> 0 OR "x"."b" <> 0 OR "x"."c" <> 0 + ) + AND ( + "x"."a" <> 0 OR "x"."b" <> 0 OR "x"."d" <> 0 ) AS "_col_0" FROM "x" AS "x" WHERE diff --git a/docs/search.js b/docs/search.js index f8b4053..9edaa39 100644 --- a/docs/search.js +++ b/docs/search.js @@ -1,6 +1,6 @@ window.pdocSearch = (function(){ /** elasticlunr - 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importing "+e.version);var n=new this;n._fields=e.fields,n._ref=e.ref,n.documentStore=t.DocumentStore.load(e.documentStore),n.pipeline=t.Pipeline.load(e.pipeline),n.index={};for(var i in e.index)n.index[i]=t.InvertedIndex.load(e.index[i]);return n},t.Index.prototype.addField=function(e){return this._fields.push(e),this.index[e]=new t.InvertedIndex,this},t.Index.prototype.setRef=function(e){return this._ref=e,this},t.Index.prototype.saveDocument=function(e){return this.documentStore=new t.DocumentStore(e),this},t.Index.prototype.addDoc=function(e,n){if(e){var n=void 0===n?!0:n,i=e[this._ref];this.documentStore.addDoc(i,e),this._fields.forEach(function(n){var o=this.pipeline.run(t.tokenizer(e[n]));this.documentStore.addFieldLength(i,n,o.length);var r={};o.forEach(function(e){e in r?r[e]+=1:r[e]=1},this);for(var s in r){var u=r[s];u=Math.sqrt(u),this.index[n].addToken(s,{ref:i,tf:u})}},this),n&&this.eventEmitter.emit("add",e,this)}},t.Index.prototype.removeDocByRef=function(e){if(e&&this.documentStore.isDocStored()!==!1&&this.documentStore.hasDoc(e)){var t=this.documentStore.getDoc(e);this.removeDoc(t,!1)}},t.Index.prototype.removeDoc=function(e,n){if(e){var n=void 0===n?!0:n,i=e[this._ref];this.documentStore.hasDoc(i)&&(this.documentStore.removeDoc(i),this._fields.forEach(function(n){var o=this.pipeline.run(t.tokenizer(e[n]));o.forEach(function(e){this.index[n].removeToken(e,i)},this)},this),n&&this.eventEmitter.emit("remove",e,this))}},t.Index.prototype.updateDoc=function(e,t){var t=void 0===t?!0:t;this.removeDocByRef(e[this._ref],!1),this.addDoc(e,!1),t&&this.eventEmitter.emit("update",e,this)},t.Index.prototype.idf=function(e,t){var n="@"+t+"/"+e;if(Object.prototype.hasOwnProperty.call(this._idfCache,n))return this._idfCache[n];var i=this.index[t].getDocFreq(e),o=1+Math.log(this.documentStore.length/(i+1));return this._idfCache[n]=o,o},t.Index.prototype.getFields=function(){return this._fields.slice()},t.Index.prototype.search=function(e,n){if(!e)return[];e="string"==typeof e?{any:e}:JSON.parse(JSON.stringify(e));var i=null;null!=n&&(i=JSON.stringify(n));for(var o=new t.Configuration(i,this.getFields()).get(),r={},s=Object.keys(e),u=0;u0&&t.push(e);for(var i in n)"docs"!==i&&"df"!==i&&this.expandToken(e+i,t,n[i]);return t},t.InvertedIndex.prototype.toJSON=function(){return{root:this.root}},t.Configuration=function(e,n){var e=e||"";if(void 0==n||null==n)throw new Error("fields should not be null");this.config={};var i;try{i=JSON.parse(e),this.buildUserConfig(i,n)}catch(o){t.utils.warn("user configuration parse failed, will use default configuration"),this.buildDefaultConfig(n)}},t.Configuration.prototype.buildDefaultConfig=function(e){this.reset(),e.forEach(function(e){this.config[e]={boost:1,bool:"OR",expand:!1}},this)},t.Configuration.prototype.buildUserConfig=function(e,n){var i="OR",o=!1;if(this.reset(),"bool"in e&&(i=e.bool||i),"expand"in e&&(o=e.expand||o),"fields"in e)for(var r in e.fields)if(n.indexOf(r)>-1){var s=e.fields[r],u=o;void 0!=s.expand&&(u=s.expand),this.config[r]={boost:s.boost||0===s.boost?s.boost:1,bool:s.bool||i,expand:u}}else t.utils.warn("field name in user configuration not found in index instance fields");else this.addAllFields2UserConfig(i,o,n)},t.Configuration.prototype.addAllFields2UserConfig=function(e,t,n){n.forEach(function(n){this.config[n]={boost:1,bool:e,expand:t}},this)},t.Configuration.prototype.get=function(){return this.config},t.Configuration.prototype.reset=function(){this.config={}},lunr.SortedSet=function(){this.length=0,this.elements=[]},lunr.SortedSet.load=function(e){var t=new this;return t.elements=e,t.length=e.length,t},lunr.SortedSet.prototype.add=function(){var e,t;for(e=0;e1;){if(r===e)return o;e>r&&(t=o),r>e&&(n=o),i=n-t,o=t+Math.floor(i/2),r=this.elements[o]}return r===e?o:-1},lunr.SortedSet.prototype.locationFor=function(e){for(var t=0,n=this.elements.length,i=n-t,o=t+Math.floor(i/2),r=this.elements[o];i>1;)e>r&&(t=o),r>e&&(n=o),i=n-t,o=t+Math.floor(i/2),r=this.elements[o];return r>e?o:e>r?o+1:void 0},lunr.SortedSet.prototype.intersect=function(e){for(var t=new lunr.SortedSet,n=0,i=0,o=this.length,r=e.length,s=this.elements,u=e.elements;;){if(n>o-1||i>r-1)break;s[n]!==u[i]?s[n]u[i]&&i++:(t.add(s[n]),n++,i++)}return t},lunr.SortedSet.prototype.clone=function(){var e=new lunr.SortedSet;return e.elements=this.toArray(),e.length=e.elements.length,e},lunr.SortedSet.prototype.union=function(e){var t,n,i;this.length>=e.length?(t=this,n=e):(t=e,n=this),i=t.clone();for(var o=0,r=n.toArray();o\"SQLGlot

\n\n

SQLGlot is a no-dependency SQL parser, transpiler, optimizer, and engine. It can be used to format SQL or translate between 19 different dialects like DuckDB, Presto, Spark, Snowflake, and BigQuery. It aims to read a wide variety of SQL inputs and output syntactically correct SQL in the targeted dialects.

\n\n

It is a very comprehensive generic SQL parser with a robust test suite. It is also quite performant, while being written purely in Python.

\n\n

You can easily customize the parser, analyze queries, traverse expression trees, and programmatically build SQL.

\n\n

Syntax errors are highlighted and dialect incompatibilities can warn or raise depending on configurations. However, it should be noted that SQL validation is not SQLGlot\u2019s goal, so some syntax errors may go unnoticed.

\n\n

Contributions are very welcome in SQLGlot; read the contribution guide to get started!

\n\n

Table of Contents

\n\n\n\n

Install

\n\n

From PyPI:

\n\n
pip3 install sqlglot\n
\n\n

Or with a local checkout:

\n\n
make install\n
\n\n

Requirements for development (optional):

\n\n
make install-dev\n
\n\n

Get in Touch

\n\n

We'd love to hear from you. Join our community Slack channel!

\n\n

Examples

\n\n

Formatting and Transpiling

\n\n

Easily translate from one dialect to another. For example, date/time functions vary from dialects and can be hard to deal with:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT EPOCH_MS(1618088028295)", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
'SELECT FROM_UNIXTIME(1618088028295 / 1000)'\n
\n
\n\n

SQLGlot can even translate custom time formats:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT STRFTIME(x, '%y-%-m-%S')", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
"SELECT DATE_FORMAT(x, 'yy-M-ss')"\n
\n
\n\n

As another example, let's suppose that we want to read in a SQL query that contains a CTE and a cast to REAL, and then transpile it to Spark, which uses backticks for identifiers and FLOAT instead of REAL:

\n\n
\n
import sqlglot\n\nsql = """WITH baz AS (SELECT a, c FROM foo WHERE a = 1) SELECT f.a, b.b, baz.c, CAST("b"."a" AS REAL) d FROM foo f JOIN bar b ON f.a = b.a LEFT JOIN baz ON f.a = baz.a"""\nprint(sqlglot.transpile(sql, write="spark", identify=True, pretty=True)[0])\n
\n
\n\n
\n
WITH `baz` AS (\n  SELECT\n    `a`,\n    `c`\n  FROM `foo`\n  WHERE\n    `a` = 1\n)\nSELECT\n  `f`.`a`,\n  `b`.`b`,\n  `baz`.`c`,\n  CAST(`b`.`a` AS FLOAT) AS `d`\nFROM `foo` AS `f`\nJOIN `bar` AS `b`\n  ON `f`.`a` = `b`.`a`\nLEFT JOIN `baz`\n  ON `f`.`a` = `baz`.`a`\n
\n
\n\n

Comments are also preserved in a best-effort basis when transpiling SQL code:

\n\n
\n
sql = """\n/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), # comment 3\n  y               -- comment 4\nFROM\n  bar /* comment 5 */,\n  tbl #          comment 6\n"""\n\nprint(sqlglot.transpile(sql, read='mysql', pretty=True)[0])\n
\n
\n\n
\n
/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), /* comment 3 */\n  y /* comment 4 */\nFROM bar /* comment 5 */, tbl /*          comment 6 */\n
\n
\n\n

Metadata

\n\n

You can explore SQL with expression helpers to do things like find columns and tables:

\n\n
\n
from sqlglot import parse_one, exp\n\n# print all column references (a and b)\nfor column in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Column):\n    print(column.alias_or_name)\n\n# find all projections in select statements (a and c)\nfor select in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Select):\n    for projection in select.expressions:\n        print(projection.alias_or_name)\n\n# find all tables (x, y, z)\nfor table in parse_one("SELECT * FROM x JOIN y JOIN z").find_all(exp.Table):\n    print(table.name)\n
\n
\n\n

Parser Errors

\n\n

When the parser detects an error in the syntax, it raises a ParserError:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT foo( FROM bar")\n
\n
\n\n
sqlglot.errors.ParseError: Expecting ). Line 1, Col: 13.\n  select foo( FROM bar\n              ~~~~\n
\n\n

Structured syntax errors are accessible for programmatic use:

\n\n
\n
import sqlglot\ntry:\n    sqlglot.transpile("SELECT foo( FROM bar")\nexcept sqlglot.errors.ParseError as e:\n    print(e.errors)\n
\n
\n\n
\n
[{\n  'description': 'Expecting )',\n  'line': 1,\n  'col': 13,\n  'start_context': 'SELECT foo( ',\n  'highlight': 'FROM',\n  'end_context': ' bar'\n}]\n
\n
\n\n

Unsupported Errors

\n\n

Presto APPROX_DISTINCT supports the accuracy argument which is not supported in Hive:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT APPROX_DISTINCT(a, 0.1) FROM foo", read="presto", write="hive")\n
\n
\n\n
\n
APPROX_COUNT_DISTINCT does not support accuracy\n'SELECT APPROX_COUNT_DISTINCT(a) FROM foo'\n
\n
\n\n

Build and Modify SQL

\n\n

SQLGlot supports incrementally building sql expressions:

\n\n
\n
from sqlglot import select, condition\n\nwhere = condition("x=1").and_("y=1")\nselect("*").from_("y").where(where).sql()\n
\n
\n\n
\n
'SELECT * FROM y WHERE x = 1 AND y = 1'\n
\n
\n\n

You can also modify a parsed tree:

\n\n
\n
from sqlglot import parse_one\nparse_one("SELECT x FROM y").from_("z").sql()\n
\n
\n\n
\n
'SELECT x FROM y, z'\n
\n
\n\n

There is also a way to recursively transform the parsed tree by applying a mapping function to each tree node:

\n\n
\n
from sqlglot import exp, parse_one\n\nexpression_tree = parse_one("SELECT a FROM x")\n\ndef transformer(node):\n    if isinstance(node, exp.Column) and node.name == "a":\n        return parse_one("FUN(a)")\n    return node\n\ntransformed_tree = expression_tree.transform(transformer)\ntransformed_tree.sql()\n
\n
\n\n
\n
'SELECT FUN(a) FROM x'\n
\n
\n\n

SQL Optimizer

\n\n

SQLGlot can rewrite queries into an \"optimized\" form. It performs a variety of techniques to create a new canonical AST. This AST can be used to standardize queries or provide the foundations for implementing an actual engine. For example:

\n\n
\n
import sqlglot\nfrom sqlglot.optimizer import optimize\n\nprint(\n    optimize(\n        sqlglot.parse_one("""\n            SELECT A OR (B OR (C AND D))\n            FROM x\n            WHERE Z = date '2021-01-01' + INTERVAL '1' month OR 1 = 0\n        """),\n        schema={"x": {"A": "INT", "B": "INT", "C": "INT", "D": "INT", "Z": "STRING"}}\n    ).sql(pretty=True)\n)\n
\n
\n\n
\n
SELECT\n  (\n    "x"."a" OR "x"."b" OR "x"."c"\n  ) AND (\n    "x"."a" OR "x"."b" OR "x"."d"\n  ) AS "_col_0"\nFROM "x" AS "x"\nWHERE\n  CAST("x"."z" AS DATE) = CAST('2021-02-01' AS DATE)\n
\n
\n\n

AST Introspection

\n\n

You can see the AST version of the sql by calling repr:

\n\n
\n
from sqlglot import parse_one\nprint(repr(parse_one("SELECT a + 1 AS z")))\n
\n
\n\n
\n
(SELECT expressions:\n  (ALIAS this:\n    (ADD this:\n      (COLUMN this:\n        (IDENTIFIER this: a, quoted: False)), expression:\n      (LITERAL this: 1, is_string: False)), alias:\n    (IDENTIFIER this: z, quoted: False)))\n
\n
\n\n

AST Diff

\n\n

SQLGlot can calculate the difference between two expressions and output changes in a form of a sequence of actions needed to transform a source expression into a target one:

\n\n
\n
from sqlglot import diff, parse_one\ndiff(parse_one("SELECT a + b, c, d"), parse_one("SELECT c, a - b, d"))\n
\n
\n\n
\n
[\n  Remove(expression=(ADD this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Insert(expression=(SUB this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Move(expression=(COLUMN this:\n    (IDENTIFIER this: c, quoted: False))),\n  Keep(source=(IDENTIFIER this: b, quoted: False), target=(IDENTIFIER this: b, quoted: False)),\n  ...\n]\n
\n
\n\n

See also: Semantic Diff for SQL.

\n\n

Custom Dialects

\n\n

Dialects can be added by subclassing Dialect:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n\nprint(Dialect["custom"])\n
\n
\n\n
<class '__main__.Custom'>\n
\n\n

SQL Execution

\n\n

One can even interpret SQL queries using SQLGlot, where the tables are represented as Python dictionaries. Although the engine is not very fast (it's not supposed to be) and is in a relatively early stage of development, it can be useful for unit testing and running SQL natively across Python objects. Additionally, the foundation can be easily integrated with fast compute kernels (arrow, pandas). Below is an example showcasing the execution of a SELECT expression that involves aggregations and JOINs:

\n\n
\n
from sqlglot.executor import execute\n\ntables = {\n    "sushi": [\n        {"id": 1, "price": 1.0},\n        {"id": 2, "price": 2.0},\n        {"id": 3, "price": 3.0},\n    ],\n    "order_items": [\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 2, "order_id": 1},\n        {"sushi_id": 3, "order_id": 2},\n    ],\n    "orders": [\n        {"id": 1, "user_id": 1},\n        {"id": 2, "user_id": 2},\n    ],\n}\n\nexecute(\n    """\n    SELECT\n      o.user_id,\n      SUM(s.price) AS price\n    FROM orders o\n    JOIN order_items i\n      ON o.id = i.order_id\n    JOIN sushi s\n      ON i.sushi_id = s.id\n    GROUP BY o.user_id\n    """,\n    tables=tables\n)\n
\n
\n\n
\n
user_id price\n      1   4.0\n      2   3.0\n
\n
\n\n

See also: Writing a Python SQL engine from scratch.

\n\n

Used By

\n\n\n\n

Documentation

\n\n

SQLGlot uses pdoc to serve its API documentation:

\n\n
make docs-serve\n
\n\n

Run Tests and Lint

\n\n
make check  # Set SKIP_INTEGRATION=1 to skip integration tests\n
\n\n

Benchmarks

\n\n

Benchmarks run on Python 3.10.5 in seconds.

\n\n\n\n\n \n \n \n \n \n \n \n\n\n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n
Querysqlglotsqlfluffsqltreesqlparsemoz_sql_parsersqloxide
tpch0.01308 (1.0)1.60626 (122.7)0.01168 (0.893)0.04958 (3.791)0.08543 (6.531)0.00136 (0.104)
short0.00109 (1.0)0.14134 (129.2)0.00099 (0.906)0.00342 (3.131)0.00652 (5.970)8.76E-5 (0.080)
long0.01399 (1.0)2.12632 (151.9)0.01126 (0.805)0.04410 (3.151)0.06671 (4.767)0.00107 (0.076)
crazy0.03969 (1.0)24.3777 (614.1)0.03917 (0.987)11.7043 (294.8)1.03280 (26.02)0.00625 (0.157)
\n\n

Optional Dependencies

\n\n

SQLGlot uses dateutil to simplify literal timedelta expressions. The optimizer will not simplify expressions like the following if the module cannot be found:

\n\n
\n
x + interval '1' month\n
\n
\n\n
\n"}, "sqlglot.pretty": {"fullname": "sqlglot.pretty", "modulename": "sqlglot", "qualname": "pretty", "kind": "variable", "doc": "

Whether to format generated SQL by default.

\n", "default_value": "False"}, "sqlglot.schema": {"fullname": "sqlglot.schema", "modulename": "sqlglot.schema", "kind": "module", "doc": "

\n"}, "sqlglot.parse": {"fullname": "sqlglot.parse", "modulename": "sqlglot", "qualname": "parse", "kind": "function", "doc": "

Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The resulting syntax tree collection.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parse_one": {"fullname": "sqlglot.parse_one", "modulename": "sqlglot", "qualname": "parse_one", "kind": "function", "doc": "

Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • into: the SQLGlot Expression to parse into.
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The syntax tree for the first parsed statement.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transpile": {"fullname": "sqlglot.transpile", "modulename": "sqlglot", "qualname": "transpile", "kind": "function", "doc": "

Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed\nto conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to transpile.
  • \n
  • read: the source dialect used to parse the input string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • write: the target dialect into which the input should be transformed (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • identity: if set to True and if the target dialect is not specified the source dialect will be used as both:\nthe source and the target dialect.
  • \n
  • error_level: the desired error level of the parser.
  • \n
  • **opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The list of transpiled SQL statements.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\twrite: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tidentity: bool = True,\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\t**opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe": {"fullname": "sqlglot.dataframe", "modulename": "sqlglot.dataframe", "kind": "module", "doc": "

PySpark DataFrame SQL Generator

\n\n

This is a drop-in replacement for the PySpark DataFrame API that will generate SQL instead of executing DataFrame operations directly. This, when combined with the transpiling support in SQLGlot, allows one to write PySpark DataFrame code and execute it on other engines like DuckDB, Presto, Spark, Snowflake, and BigQuery.

\n\n

Currently many of the common operations are covered and more functionality will be added over time. Please open an issue or PR with your feedback or contribution to help influence what should be prioritized next and make sure your use case is properly supported.

\n\n

How to use

\n\n

Instructions

\n\n
    \n
  • Install SQLGlot and that is all that is required to just generate SQL. The examples show generating SQL and then executing that SQL on a specific engine and that will require that engine's client library.
  • \n
  • Find/replace all from pyspark.sql with from sqlglot.dataframe.
  • \n
  • Prior to any spark.read.table or spark.table run sqlglot.schema.add_table('<table_name>', <column_structure>).\n
      \n
    • The column structure can be defined the following ways:\n
        \n
      • Dictionary where the keys are column names and values are string of the Spark SQL type name.\n
          \n
        • Ex: {'cola': 'string', 'colb': 'int'}
        • \n
      • \n
      • PySpark DataFrame StructType similar to when using createDataFrame.\n
          \n
        • Ex: StructType([StructField('cola', StringType()), StructField('colb', IntegerType())])
        • \n
      • \n
      • A string of names and types similar to what is supported in createDataFrame.\n
          \n
        • Ex: cola: STRING, colb: INT
        • \n
      • \n
      • [Not Recommended] A list of string column names without type.\n
          \n
        • Ex: ['cola', 'colb']
        • \n
        • The lack of types may limit functionality in future releases.
        • \n
      • \n
    • \n
    • See Registering Custom Schema for information on how to skip this step if the information is stored externally.
    • \n
  • \n
  • Add .sql(pretty=True) to your final DataFrame command to return a list of sql statements to run that command.\n
      \n
    • In most cases a single SQL statement is returned. Currently the only exception is when caching DataFrames which isn't supported in other dialects.
    • \n
    • Spark is the default output dialect. See dialects for a full list of dialects.
    • \n
    • Ex: .sql(pretty=True, dialect='bigquery')
    • \n
  • \n
\n\n

Examples

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\n\nsqlglot.schema.add_table('employee', {\n  'employee_id': 'INT',\n  'fname': 'STRING',\n  'lname': 'STRING',\n  'age': 'INT',\n})  # Register the table structure prior to reading from the table\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))  # Spark will be the dialect used by default\n
\n
\n\n
SELECT\n  `employee`.`age` AS `age`,\n  COUNT(DISTINCT `employee`.`employee_id`) AS `num_employees`\nFROM `employee` AS `employee`\nGROUP BY\n  `employee`.`age`\n
\n\n

Registering Custom Schema Class

\n\n

The step of adding sqlglot.schema.add_table can be skipped if you have the column structure stored externally like in a file or from an external metadata table. This can be done by writing a class that implements the sqlglot.schema.Schema abstract class and then assigning that class to sqlglot.schema.

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\nfrom sqlglot.schema import Schema\n\n\nclass ExternalSchema(Schema):\n  ...\n\nsqlglot.schema = ExternalSchema()\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))\n
\n
\n\n

Example Implementations

\n\n

Bigquery

\n\n
\n
from google.cloud import bigquery\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\nclient = bigquery.Client()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="bigquery")\n)\n\nresult = None\nfor sql in sql_statements:\n  result = client.query(sql)\n\nassert result is not None\nfor row in client.query(result):\n    print(f"Age: {row['age']}, Num Employees: {row['num_employees']}")\n
\n
\n\n

Snowflake

\n\n
\n
import os\n\nimport snowflake.connector\nfrom sqlglot.dataframe.session import SparkSession\nfrom sqlglot.dataframe import types\nfrom sqlglot.dataframe import functions as F\n\nctx = snowflake.connector.connect(\n    user=os.environ["SNOWFLAKE_USER"],\n    password=os.environ["SNOWFLAKE_PASS"],\n    account=os.environ["SNOWFLAKE_ACCOUNT"]\n)\ncs = ctx.cursor()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("lname")).alias("num_employees"))\n    .sql(dialect="snowflake")\n)\n\ntry:\n    for sql in sql_statements:\n        cs.execute(sql)\n    results = cs.fetchall()\n    for row in results:\n        print(f"Age: {row[0]}, Num Employees: {row[1]}")\nfinally:\n    cs.close()\nctx.close()\n
\n
\n\n

Spark

\n\n
\n
from pyspark.sql.session import SparkSession as PySparkSession\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="spark")\n)\n\npyspark = PySparkSession.builder.master("local[*]").getOrCreate()\n\ndf = None\nfor sql in sql_statements:\n    df = pyspark.sql(sql)\n\nassert df is not None\ndf.show()\n
\n
\n\n

Unsupportable Operations

\n\n

Any operation that lacks a way to represent it in SQL cannot be supported by this tool. An example of this would be rdd operations. Since the DataFrame API though is mostly modeled around SQL concepts most operations can be supported.

\n"}, "sqlglot.dataframe.sql": {"fullname": "sqlglot.dataframe.sql", "modulename": "sqlglot.dataframe.sql", "kind": "module", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession": {"fullname": "sqlglot.dataframe.sql.SparkSession", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession.table": {"fullname": "sqlglot.dataframe.sql.SparkSession.table", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.createDataFrame": {"fullname": "sqlglot.dataframe.sql.SparkSession.createDataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.createDataFrame", "kind": "function", "doc": "

\n", "signature": "(\tself,\tdata: Sequence[Union[Dict[str, <MagicMock id='140377708850400'>], List[<MagicMock id='140377708850400'>], Tuple]],\tschema: Optional[<MagicMock id='140377708766032'>] = None,\tsamplingRatio: Optional[float] = None,\tverifySchema: bool = False) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.sql": {"fullname": "sqlglot.dataframe.sql.SparkSession.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.sql", "kind": "function", "doc": "

\n", "signature": "(self, sqlQuery: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame": {"fullname": "sqlglot.dataframe.sql.DataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrame.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrame.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.__init__", "kind": "function", "doc": "

\n", "signature": "(\tspark: <MagicMock id='140377712280432'>,\texpression: sqlglot.expressions.Select,\tbranch_id: Optional[str] = None,\tsequence_id: Optional[str] = None,\tlast_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>,\tpending_hints: Optional[List[sqlglot.expressions.Expression]] = None,\toutput_expression_container: Optional[<MagicMock id='140377711871072'>] = None,\t**kwargs)"}, "sqlglot.dataframe.sql.DataFrame.sql": {"fullname": "sqlglot.dataframe.sql.DataFrame.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sql", "kind": "function", "doc": "

\n", "signature": "(self, dialect='spark', optimize=True, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.copy": {"fullname": "sqlglot.dataframe.sql.DataFrame.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.select": {"fullname": "sqlglot.dataframe.sql.DataFrame.select", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.select", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.alias": {"fullname": "sqlglot.dataframe.sql.DataFrame.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.where": {"fullname": "sqlglot.dataframe.sql.DataFrame.where", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.where", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.filter": {"fullname": "sqlglot.dataframe.sql.DataFrame.filter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.filter", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.groupBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.groupBy", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.group.GroupedData:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.agg": {"fullname": "sqlglot.dataframe.sql.DataFrame.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.agg", "kind": "function", "doc": "

\n", "signature": "(self, *exprs, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.join": {"fullname": "sqlglot.dataframe.sql.DataFrame.join", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.join", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother_df: sqlglot.dataframe.sql.dataframe.DataFrame,\ton: Union[str, List[str], sqlglot.dataframe.sql.column.Column, List[sqlglot.dataframe.sql.column.Column]],\thow: str = 'inner',\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.orderBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.orderBy", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.sort": {"fullname": "sqlglot.dataframe.sql.DataFrame.sort", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sort", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.union": {"fullname": "sqlglot.dataframe.sql.DataFrame.union", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.union", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionByName": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionByName", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionByName", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame,\tallowMissingColumns: bool = False):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersect": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersect", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersect", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersectAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersectAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersectAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.exceptAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.exceptAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.exceptAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.distinct": {"fullname": "sqlglot.dataframe.sql.DataFrame.distinct", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.distinct", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropDuplicates": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropDuplicates", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropDuplicates", "kind": "function", "doc": "

\n", "signature": "(self, subset: Optional[List[str]] = None):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropna": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropna", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.fillna": {"fullname": "sqlglot.dataframe.sql.DataFrame.fillna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.fillna", "kind": "function", "doc": "

Functionality Difference: If you provide a value to replace a null and that type conflicts\nwith the type of the column then PySpark will just ignore your replacement.\nThis will try to cast them to be the same in some cases. So they won't always match.\nBest to not mix types so make sure replacement is the same type as the column

\n\n

Possibility for improvement: Use typeof function to get the type of the column\nand check if it matches the type of the value provided. If not then make it null.

\n", "signature": "(\tself,\tvalue: <MagicMock id='140377707652544'>,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.replace": {"fullname": "sqlglot.dataframe.sql.DataFrame.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[Collection[<MagicMock id='140377707950480'>], <MagicMock id='140377707950480'>, NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumn": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumn", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumn", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolName: str,\tcol: sqlglot.dataframe.sql.column.Column) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumnRenamed": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumnRenamed", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumnRenamed", "kind": "function", "doc": "

\n", "signature": "(self, existing: str, new: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.drop": {"fullname": "sqlglot.dataframe.sql.DataFrame.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.limit": {"fullname": "sqlglot.dataframe.sql.DataFrame.limit", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.limit", "kind": "function", "doc": "

\n", "signature": "(self, num: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.hint": {"fullname": "sqlglot.dataframe.sql.DataFrame.hint", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.hint", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*parameters: Union[str, int, NoneType]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.repartition": {"fullname": "sqlglot.dataframe.sql.DataFrame.repartition", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.repartition", "kind": "function", "doc": "

\n", "signature": "(\tself,\tnumPartitions: Union[int, <MagicMock id='140377708152048'>],\t*cols: <MagicMock id='140377708084144'>) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.coalesce": {"fullname": "sqlglot.dataframe.sql.DataFrame.coalesce", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.coalesce", "kind": "function", "doc": "

\n", "signature": "(self, numPartitions: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.cache": {"fullname": "sqlglot.dataframe.sql.DataFrame.cache", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.cache", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.persist": {"fullname": "sqlglot.dataframe.sql.DataFrame.persist", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.persist", "kind": "function", "doc": "

Storage Level Options: https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-aux-cache-cache-table.html

\n", "signature": "(\tself,\tstorageLevel: str = 'MEMORY_AND_DISK_SER') -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData": {"fullname": "sqlglot.dataframe.sql.GroupedData", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.GroupedData.__init__": {"fullname": "sqlglot.dataframe.sql.GroupedData.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tgroup_by_cols: List[sqlglot.dataframe.sql.column.Column],\tlast_op: sqlglot.dataframe.sql.operations.Operation)"}, "sqlglot.dataframe.sql.GroupedData.agg": {"fullname": "sqlglot.dataframe.sql.GroupedData.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.agg", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*exprs: Union[sqlglot.dataframe.sql.column.Column, Dict[str, str]]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.count": {"fullname": "sqlglot.dataframe.sql.GroupedData.count", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.count", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.mean": {"fullname": "sqlglot.dataframe.sql.GroupedData.mean", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.mean", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.avg": {"fullname": "sqlglot.dataframe.sql.GroupedData.avg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.avg", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.max": {"fullname": "sqlglot.dataframe.sql.GroupedData.max", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.max", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.min": {"fullname": "sqlglot.dataframe.sql.GroupedData.min", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.min", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.sum": {"fullname": "sqlglot.dataframe.sql.GroupedData.sum", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.sum", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.pivot": {"fullname": "sqlglot.dataframe.sql.GroupedData.pivot", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.pivot", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column": {"fullname": "sqlglot.dataframe.sql.Column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Column.__init__": {"fullname": "sqlglot.dataframe.sql.Column.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression: Union[<MagicMock id='140377710043744'>, sqlglot.expressions.Expression, NoneType])"}, "sqlglot.dataframe.sql.Column.ensure_col": {"fullname": "sqlglot.dataframe.sql.Column.ensure_col", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_col", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tvalue: Union[<MagicMock id='140377708259664'>, sqlglot.expressions.Expression, NoneType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_cols": {"fullname": "sqlglot.dataframe.sql.Column.ensure_cols", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_cols", "kind": "function", "doc": "

\n", "signature": "(\tcls,\targs: List[Union[<MagicMock id='140377708547664'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.column.Column]:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_anonymous_function": {"fullname": "sqlglot.dataframe.sql.Column.invoke_anonymous_function", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_anonymous_function", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140377708420048'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='140377708523584'>]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_expression_over_column": {"fullname": "sqlglot.dataframe.sql.Column.invoke_expression_over_column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_expression_over_column", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140377708376176'>],\tcallable_expression: Callable,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.binary_op": {"fullname": "sqlglot.dataframe.sql.Column.binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140377706598112'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.inverse_binary_op": {"fullname": "sqlglot.dataframe.sql.Column.inverse_binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.inverse_binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140377706608240'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.unary_op": {"fullname": "sqlglot.dataframe.sql.Column.unary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.unary_op", "kind": "function", "doc": "

\n", "signature": "(self, klass: Callable, **kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_literal": {"fullname": "sqlglot.dataframe.sql.Column.ensure_literal", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_literal", "kind": "function", "doc": "

\n", "signature": "(cls, value) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.copy": {"fullname": "sqlglot.dataframe.sql.Column.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.copy", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.set_table_name": {"fullname": "sqlglot.dataframe.sql.Column.set_table_name", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.set_table_name", "kind": "function", "doc": "

\n", "signature": "(self, table_name: str, copy=False) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.sql": {"fullname": "sqlglot.dataframe.sql.Column.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.alias": {"fullname": "sqlglot.dataframe.sql.Column.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc": {"fullname": "sqlglot.dataframe.sql.Column.asc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc": {"fullname": "sqlglot.dataframe.sql.Column.desc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.when": {"fullname": "sqlglot.dataframe.sql.Column.when", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.when", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: sqlglot.dataframe.sql.column.Column,\tvalue: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.otherwise": {"fullname": "sqlglot.dataframe.sql.Column.otherwise", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.otherwise", "kind": "function", "doc": "

\n", "signature": "(self, value: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNull": {"fullname": "sqlglot.dataframe.sql.Column.isNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNotNull": {"fullname": "sqlglot.dataframe.sql.Column.isNotNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNotNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.cast": {"fullname": "sqlglot.dataframe.sql.Column.cast", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.cast", "kind": "function", "doc": "

Functionality Difference: PySpark cast accepts a datatype instance of the datatype class\nSqlglot doesn't currently replicate this class so it only accepts a string

\n", "signature": "(self, dataType: Union[str, sqlglot.dataframe.sql.types.DataType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.startswith": {"fullname": "sqlglot.dataframe.sql.Column.startswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.startswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.endswith": {"fullname": "sqlglot.dataframe.sql.Column.endswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.endswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.rlike": {"fullname": "sqlglot.dataframe.sql.Column.rlike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.rlike", "kind": "function", "doc": "

\n", "signature": "(self, regexp: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.like": {"fullname": "sqlglot.dataframe.sql.Column.like", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.like", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ilike": {"fullname": "sqlglot.dataframe.sql.Column.ilike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ilike", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.substr": {"fullname": "sqlglot.dataframe.sql.Column.substr", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.substr", "kind": "function", "doc": "

\n", "signature": "(\tself,\tstartPos: Union[int, sqlglot.dataframe.sql.column.Column],\tlength: Union[int, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isin": {"fullname": "sqlglot.dataframe.sql.Column.isin", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isin", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140377706743696'>, Iterable[<MagicMock id='140377706743696'>]]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.between": {"fullname": "sqlglot.dataframe.sql.Column.between", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.between", "kind": "function", "doc": "

\n", "signature": "(\tself,\tlowerBound: <MagicMock id='140377706814464'>,\tupperBound: <MagicMock id='140377706852560'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.over": {"fullname": "sqlglot.dataframe.sql.Column.over", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.over", "kind": "function", "doc": "

\n", "signature": "(\tself,\twindow: <MagicMock id='140377706910272'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.__init__", "kind": "function", "doc": "

\n", "signature": "(df: sqlglot.dataframe.sql.dataframe.DataFrame)"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.drop": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.fill": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.fill", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.fill", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[int, bool, float, str, Dict[str, Any]],\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.replace": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[str, List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window": {"fullname": "sqlglot.dataframe.sql.Window", "modulename": "sqlglot.dataframe.sql", "qualname": "Window", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Window.partitionBy": {"fullname": "sqlglot.dataframe.sql.Window.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140377707221328'>, List[<MagicMock id='140377707221328'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.orderBy": {"fullname": "sqlglot.dataframe.sql.Window.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140377707360368'>, List[<MagicMock id='140377707360368'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rowsBetween": {"fullname": "sqlglot.dataframe.sql.Window.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rangeBetween": {"fullname": "sqlglot.dataframe.sql.Window.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec": {"fullname": "sqlglot.dataframe.sql.WindowSpec", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.WindowSpec.__init__": {"fullname": "sqlglot.dataframe.sql.WindowSpec.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression = (WINDOW ))"}, "sqlglot.dataframe.sql.WindowSpec.copy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.copy", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.sql": {"fullname": "sqlglot.dataframe.sql.WindowSpec.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.partitionBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140377707291568'>, List[<MagicMock id='140377707291568'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.orderBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140377707161408'>, List[<MagicMock id='140377707161408'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rowsBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rangeBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameReader": {"fullname": "sqlglot.dataframe.sql.DataFrameReader", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameReader.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.__init__", "kind": "function", "doc": "

\n", "signature": "(spark: sqlglot.dataframe.sql.session.SparkSession)"}, "sqlglot.dataframe.sql.DataFrameReader.table": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.table", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameWriter.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tspark: Optional[sqlglot.dataframe.sql.session.SparkSession] = None,\tmode: Optional[str] = None,\tby_name: bool = False)"}, "sqlglot.dataframe.sql.DataFrameWriter.copy": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.sql": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.mode": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.mode", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.mode", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsaveMode: Optional[str]) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.insertInto": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.insertInto", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.insertInto", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttableName: str,\toverwrite: Optional[bool] = None) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.saveAsTable", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\tformat: Optional[str] = None,\tmode: Optional[str] = None):", "funcdef": "def"}, "sqlglot.dialects": {"fullname": "sqlglot.dialects", "modulename": "sqlglot.dialects", "kind": "module", "doc": "

Dialects

\n\n

While there is a SQL standard, most SQL engines support a variation of that standard. This makes it difficult\nto write portable SQL code. SQLGlot bridges all the different variations, called \"dialects\", with an extensible\nSQL transpilation framework.

\n\n

The base sqlglot.dialects.dialect.Dialect class implements a generic dialect that aims to be as universal as possible.

\n\n

Each SQL variation has its own Dialect subclass, extending the corresponding Tokenizer, Parser and Generator\nclasses as needed.

\n\n

Implementing a custom Dialect

\n\n

Consider the following example:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n
\n
\n\n

This is a typical example of adding a new dialect implementation in SQLGlot: we specify its identifier and string\ndelimiters, as well as what tokens it uses for its types and how they're associated with SQLGlot types. Since\nthe Expression classes are common for each dialect supported in SQLGlot, we may also need to override the generation\nlogic for some expressions; this is usually done by adding new entries to the TRANSFORMS mapping.

\n\n
\n"}, "sqlglot.dialects.bigquery": {"fullname": "sqlglot.dialects.bigquery", "modulename": "sqlglot.dialects.bigquery", "kind": "module", "doc": "

Supports BigQuery Standard SQL.

\n"}, "sqlglot.dialects.bigquery.BigQuery": {"fullname": "sqlglot.dialects.bigquery.BigQuery", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.bigquery.BigQuery.Tokenizer": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Tokenizer", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.bigquery.BigQuery.Parser": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Parser", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.bigquery.BigQuery.Generator": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.array_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.commit_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.in_unnest_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Unnest) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.except_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.except_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.clickhouse": {"fullname": "sqlglot.dialects.clickhouse", "modulename": "sqlglot.dialects.clickhouse", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.clickhouse.ClickHouse": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.clickhouse.ClickHouse.Parser": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Parser", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.dialects.databricks": {"fullname": "sqlglot.dialects.databricks", "modulename": "sqlglot.dialects.databricks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.databricks.Databricks": {"fullname": "sqlglot.dialects.databricks.Databricks", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark"}, "sqlglot.dialects.databricks.Databricks.Parser": {"fullname": "sqlglot.dialects.databricks.Databricks.Parser", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Parser"}, "sqlglot.dialects.databricks.Databricks.Generator": {"fullname": "sqlglot.dialects.databricks.Databricks.Generator", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Generator"}, "sqlglot.dialects.databricks.Databricks.Tokenizer": {"fullname": "sqlglot.dialects.databricks.Databricks.Tokenizer", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark.Tokenizer"}, "sqlglot.dialects.dialect": {"fullname": "sqlglot.dialects.dialect", "modulename": "sqlglot.dialects.dialect", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialects": {"fullname": "sqlglot.dialects.dialect.Dialects", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects", "kind": "class", "doc": "

An enumeration.

\n", "bases": "builtins.str, enum.Enum"}, "sqlglot.dialects.dialect.Dialects.DIALECT": {"fullname": "sqlglot.dialects.dialect.Dialects.DIALECT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DIALECT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DIALECT: ''>"}, "sqlglot.dialects.dialect.Dialects.BIGQUERY": {"fullname": "sqlglot.dialects.dialect.Dialects.BIGQUERY", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.BIGQUERY", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.BIGQUERY: 'bigquery'>"}, "sqlglot.dialects.dialect.Dialects.CLICKHOUSE": {"fullname": "sqlglot.dialects.dialect.Dialects.CLICKHOUSE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.CLICKHOUSE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.CLICKHOUSE: 'clickhouse'>"}, "sqlglot.dialects.dialect.Dialects.DUCKDB": {"fullname": "sqlglot.dialects.dialect.Dialects.DUCKDB", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DUCKDB", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DUCKDB: 'duckdb'>"}, "sqlglot.dialects.dialect.Dialects.HIVE": {"fullname": "sqlglot.dialects.dialect.Dialects.HIVE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.HIVE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.HIVE: 'hive'>"}, "sqlglot.dialects.dialect.Dialects.MYSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.MYSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.MYSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.MYSQL: 'mysql'>"}, "sqlglot.dialects.dialect.Dialects.ORACLE": {"fullname": "sqlglot.dialects.dialect.Dialects.ORACLE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.ORACLE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.ORACLE: 'oracle'>"}, "sqlglot.dialects.dialect.Dialects.POSTGRES": {"fullname": "sqlglot.dialects.dialect.Dialects.POSTGRES", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.POSTGRES", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.POSTGRES: 'postgres'>"}, "sqlglot.dialects.dialect.Dialects.PRESTO": {"fullname": "sqlglot.dialects.dialect.Dialects.PRESTO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.PRESTO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.PRESTO: 'presto'>"}, "sqlglot.dialects.dialect.Dialects.REDSHIFT": {"fullname": "sqlglot.dialects.dialect.Dialects.REDSHIFT", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.REDSHIFT", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.REDSHIFT: 'redshift'>"}, "sqlglot.dialects.dialect.Dialects.SNOWFLAKE": {"fullname": "sqlglot.dialects.dialect.Dialects.SNOWFLAKE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SNOWFLAKE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SNOWFLAKE: 'snowflake'>"}, "sqlglot.dialects.dialect.Dialects.SPARK": {"fullname": "sqlglot.dialects.dialect.Dialects.SPARK", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SPARK", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SPARK: 'spark'>"}, "sqlglot.dialects.dialect.Dialects.SQLITE": {"fullname": "sqlglot.dialects.dialect.Dialects.SQLITE", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.SQLITE", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.SQLITE: 'sqlite'>"}, "sqlglot.dialects.dialect.Dialects.STARROCKS": {"fullname": "sqlglot.dialects.dialect.Dialects.STARROCKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.STARROCKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.STARROCKS: 'starrocks'>"}, "sqlglot.dialects.dialect.Dialects.TABLEAU": {"fullname": "sqlglot.dialects.dialect.Dialects.TABLEAU", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TABLEAU", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TABLEAU: 'tableau'>"}, "sqlglot.dialects.dialect.Dialects.TRINO": {"fullname": "sqlglot.dialects.dialect.Dialects.TRINO", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TRINO", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TRINO: 'trino'>"}, "sqlglot.dialects.dialect.Dialects.TSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.TSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TSQL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TSQL: 'tsql'>"}, "sqlglot.dialects.dialect.Dialects.DATABRICKS": {"fullname": "sqlglot.dialects.dialect.Dialects.DATABRICKS", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DATABRICKS", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DATABRICKS: 'databricks'>"}, "sqlglot.dialects.dialect.Dialects.DRILL": {"fullname": "sqlglot.dialects.dialect.Dialects.DRILL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.DRILL", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.DRILL: 'drill'>"}, "sqlglot.dialects.dialect.Dialects.TERADATA": {"fullname": "sqlglot.dialects.dialect.Dialects.TERADATA", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TERADATA", "kind": "variable", "doc": "

\n", "default_value": "<Dialects.TERADATA: 'teradata'>"}, "sqlglot.dialects.dialect.Dialect": {"fullname": "sqlglot.dialects.dialect.Dialect", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect", "kind": "class", "doc": "

\n"}, "sqlglot.dialects.dialect.Dialect.get_or_raise": {"fullname": "sqlglot.dialects.dialect.Dialect.get_or_raise", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.get_or_raise", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType]) -> Type[sqlglot.dialects.dialect.Dialect]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.format_time": {"fullname": "sqlglot.dialects.dialect.Dialect.format_time", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.format_time", "kind": "function", "doc": "

\n", "signature": "(\tcls,\texpression: Union[str, sqlglot.expressions.Expression, NoneType]) -> Optional[sqlglot.expressions.Expression]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parse": {"fullname": "sqlglot.dialects.dialect.Dialect.parse", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parse", "kind": "function", "doc": "

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\n", "signature": "(\tself,\texpression_type: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\tsql: str,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.generate": {"fullname": "sqlglot.dialects.dialect.Dialect.generate", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.generate", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\t**opts) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.transpile": {"fullname": "sqlglot.dialects.dialect.Dialect.transpile", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.transpile", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, **opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.tokenize": {"fullname": "sqlglot.dialects.dialect.Dialect.tokenize", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.tokenize", "kind": "function", "doc": "

\n", "signature": "(self, sql: str) -> List[sqlglot.tokens.Token]:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.parser": {"fullname": "sqlglot.dialects.dialect.Dialect.parser", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.parser", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.parser.Parser:", "funcdef": "def"}, "sqlglot.dialects.dialect.Dialect.generator": {"fullname": "sqlglot.dialects.dialect.Dialect.generator", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialect.generator", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.generator.Generator:", "funcdef": "def"}, "sqlglot.dialects.dialect.rename_func": {"fullname": "sqlglot.dialects.dialect.rename_func", "modulename": "sqlglot.dialects.dialect", "qualname": "rename_func", "kind": "function", "doc": "

\n", "signature": "(\tname: str) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.dialects.dialect.approx_count_distinct_sql": {"fullname": "sqlglot.dialects.dialect.approx_count_distinct_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "approx_count_distinct_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.ApproxDistinct) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.if_sql": {"fullname": "sqlglot.dialects.dialect.if_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "if_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.If) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtract | sqlglot.expressions.JSONBExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql": {"fullname": "sqlglot.dialects.dialect.arrow_json_extract_scalar_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "arrow_json_extract_scalar_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.JSONExtractScalar | sqlglot.expressions.JSONBExtractScalar) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.inline_array_sql": {"fullname": "sqlglot.dialects.dialect.inline_array_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "inline_array_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_ilike_sql": {"fullname": "sqlglot.dialects.dialect.no_ilike_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_ilike_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_paren_current_date_sql": {"fullname": "sqlglot.dialects.dialect.no_paren_current_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_paren_current_date_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CurrentDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_recursive_cte_sql": {"fullname": "sqlglot.dialects.dialect.no_recursive_cte_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_recursive_cte_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_safe_divide_sql": {"fullname": "sqlglot.dialects.dialect.no_safe_divide_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_safe_divide_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.SafeDivide) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_tablesample_sql": {"fullname": "sqlglot.dialects.dialect.no_tablesample_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_tablesample_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TableSample) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_pivot_sql": {"fullname": "sqlglot.dialects.dialect.no_pivot_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_pivot_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Pivot) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_trycast_sql": {"fullname": "sqlglot.dialects.dialect.no_trycast_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_trycast_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TryCast) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_properties_sql": {"fullname": "sqlglot.dialects.dialect.no_properties_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_properties_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.no_comment_column_constraint_sql": {"fullname": "sqlglot.dialects.dialect.no_comment_column_constraint_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "no_comment_column_constraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CommentColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_position_sql": {"fullname": "sqlglot.dialects.dialect.str_position_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_position_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StrPosition) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.struct_extract_sql": {"fullname": "sqlglot.dialects.dialect.struct_extract_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "struct_extract_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StructExtract) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.var_map_sql": {"fullname": "sqlglot.dialects.dialect.var_map_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "var_map_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Map | sqlglot.expressions.VarMap,\tmap_func_name: str = 'MAP') -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.format_time_lambda": {"fullname": "sqlglot.dialects.dialect.format_time_lambda", "modulename": "sqlglot.dialects.dialect", "qualname": "format_time_lambda", "kind": "function", "doc": "

Helper used for time expressions.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • dialect: target sql dialect.
  • \n
  • default: the default format, True being time.
  • \n
\n\n
Returns:
\n\n
\n

A callable that can be used to return the appropriately formatted time expression.

\n
\n", "signature": "(\texp_class: Type[~E],\tdialect: str,\tdefault: Union[bool, str, NoneType] = None) -> Callable[[Sequence], ~E]:", "funcdef": "def"}, "sqlglot.dialects.dialect.create_with_partitions_sql": {"fullname": "sqlglot.dialects.dialect.create_with_partitions_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "create_with_partitions_sql", "kind": "function", "doc": "

In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the\nPARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding\ncolumns are removed from the create statement.

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Create) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.parse_date_delta": {"fullname": "sqlglot.dialects.dialect.parse_date_delta", "modulename": "sqlglot.dialects.dialect", "qualname": "parse_date_delta", "kind": "function", "doc": "

\n", "signature": "(\texp_class: Type[~E],\tunit_mapping: Optional[Dict[str, str]] = None) -> Callable[[Sequence], ~E]:", "funcdef": "def"}, "sqlglot.dialects.dialect.parse_date_delta_with_interval": {"fullname": "sqlglot.dialects.dialect.parse_date_delta_with_interval", "modulename": "sqlglot.dialects.dialect", "qualname": "parse_date_delta_with_interval", "kind": "function", "doc": "

\n", "signature": "(expression_class: Type[~E]) -> Callable[[Sequence], Optional[~E]]:", "funcdef": "def"}, "sqlglot.dialects.dialect.date_trunc_to_time": {"fullname": "sqlglot.dialects.dialect.date_trunc_to_time", "modulename": "sqlglot.dialects.dialect", "qualname": "date_trunc_to_time", "kind": "function", "doc": "

\n", "signature": "(\targs: Sequence) -> sqlglot.expressions.DateTrunc | sqlglot.expressions.TimestampTrunc:", "funcdef": "def"}, "sqlglot.dialects.dialect.timestamptrunc_sql": {"fullname": "sqlglot.dialects.dialect.timestamptrunc_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "timestamptrunc_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TimestampTrunc) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.locate_to_strposition": {"fullname": "sqlglot.dialects.dialect.locate_to_strposition", "modulename": "sqlglot.dialects.dialect", "qualname": "locate_to_strposition", "kind": "function", "doc": "

\n", "signature": "(args: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.dialects.dialect.strposition_to_locate_sql": {"fullname": "sqlglot.dialects.dialect.strposition_to_locate_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "strposition_to_locate_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.StrPosition) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.timestrtotime_sql": {"fullname": "sqlglot.dialects.dialect.timestrtotime_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "timestrtotime_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.TimeStrToTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.datestrtodate_sql": {"fullname": "sqlglot.dialects.dialect.datestrtodate_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "datestrtodate_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.DateStrToDate) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.min_or_least": {"fullname": "sqlglot.dialects.dialect.min_or_least", "modulename": "sqlglot.dialects.dialect", "qualname": "min_or_least", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Min) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.max_or_greatest": {"fullname": "sqlglot.dialects.dialect.max_or_greatest", "modulename": "sqlglot.dialects.dialect", "qualname": "max_or_greatest", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Max) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.count_if_to_sum": {"fullname": "sqlglot.dialects.dialect.count_if_to_sum", "modulename": "sqlglot.dialects.dialect", "qualname": "count_if_to_sum", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CountIf) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.trim_sql": {"fullname": "sqlglot.dialects.dialect.trim_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "trim_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Trim) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_to_time_sql": {"fullname": "sqlglot.dialects.dialect.str_to_time_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_to_time_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.ts_or_ds_to_date_sql": {"fullname": "sqlglot.dialects.dialect.ts_or_ds_to_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "ts_or_ds_to_date_sql", "kind": "function", "doc": "

\n", "signature": "(dialect: str) -> Callable:", "funcdef": "def"}, "sqlglot.dialects.drill": {"fullname": "sqlglot.dialects.drill", "modulename": "sqlglot.dialects.drill", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.drill.Drill": {"fullname": "sqlglot.dialects.drill.Drill", "modulename": "sqlglot.dialects.drill", "qualname": "Drill", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.drill.Drill.Tokenizer": {"fullname": "sqlglot.dialects.drill.Drill.Tokenizer", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.drill.Drill.Parser": {"fullname": "sqlglot.dialects.drill.Drill.Parser", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.drill.Drill.Generator": {"fullname": "sqlglot.dialects.drill.Drill.Generator", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.drill.Drill.Generator.normalize_func": {"fullname": "sqlglot.dialects.drill.Drill.Generator.normalize_func", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.duckdb": {"fullname": "sqlglot.dialects.duckdb", "modulename": "sqlglot.dialects.duckdb", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.duckdb.DuckDB": {"fullname": "sqlglot.dialects.duckdb.DuckDB", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.duckdb.DuckDB.Tokenizer": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Tokenizer", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.duckdb.DuckDB.Parser": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Parser", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.duckdb.DuckDB.Generator": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator.tablesample_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.TableSample,\tseed_prefix: str = 'SEED') -> str:", "funcdef": "def"}, "sqlglot.dialects.hive": {"fullname": "sqlglot.dialects.hive", "modulename": "sqlglot.dialects.hive", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.hive.Hive": {"fullname": "sqlglot.dialects.hive.Hive", "modulename": "sqlglot.dialects.hive", "qualname": "Hive", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.hive.Hive.Tokenizer": {"fullname": "sqlglot.dialects.hive.Hive.Tokenizer", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.hive.Hive.Parser": {"fullname": "sqlglot.dialects.hive.Hive.Parser", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.hive.Hive.Generator": {"fullname": "sqlglot.dialects.hive.Hive.Generator", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.arrayagg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ArrayAgg) -> str:", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.with_properties": {"fullname": "sqlglot.dialects.hive.Hive.Generator.with_properties", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.datatype_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.datatype_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.mysql": {"fullname": "sqlglot.dialects.mysql", "modulename": "sqlglot.dialects.mysql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.mysql.MySQL": {"fullname": "sqlglot.dialects.mysql.MySQL", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.mysql.MySQL.Tokenizer": {"fullname": "sqlglot.dialects.mysql.MySQL.Tokenizer", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.mysql.MySQL.Parser": {"fullname": "sqlglot.dialects.mysql.MySQL.Parser", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.mysql.MySQL.Generator": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.mysql.MySQL.Generator.show_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.show_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.show_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Show) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle": {"fullname": "sqlglot.dialects.oracle", "modulename": "sqlglot.dialects.oracle", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.oracle.Oracle": {"fullname": "sqlglot.dialects.oracle.Oracle", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.oracle.Oracle.Parser": {"fullname": "sqlglot.dialects.oracle.Oracle.Parser", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.oracle.Oracle.Generator": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.oracle.Oracle.Generator.offset_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.offset_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.column_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.column_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.xmltable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.XMLTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Tokenizer": {"fullname": "sqlglot.dialects.oracle.Oracle.Tokenizer", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres": {"fullname": "sqlglot.dialects.postgres", "modulename": "sqlglot.dialects.postgres", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.postgres.Postgres": {"fullname": "sqlglot.dialects.postgres.Postgres", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.postgres.Postgres.Tokenizer": {"fullname": "sqlglot.dialects.postgres.Postgres.Tokenizer", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres.Postgres.Parser": {"fullname": "sqlglot.dialects.postgres.Postgres.Parser", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.postgres.Postgres.Generator": {"fullname": "sqlglot.dialects.postgres.Postgres.Generator", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto": {"fullname": "sqlglot.dialects.presto", "modulename": "sqlglot.dialects.presto", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.presto.Presto": {"fullname": "sqlglot.dialects.presto.Presto", "modulename": "sqlglot.dialects.presto", "qualname": "Presto", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.presto.Presto.Tokenizer": {"fullname": "sqlglot.dialects.presto.Presto.Tokenizer", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.presto.Presto.Parser": {"fullname": "sqlglot.dialects.presto.Presto.Parser", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.presto.Presto.Generator": {"fullname": "sqlglot.dialects.presto.Presto.Generator", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto.Presto.Generator.interval_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.interval_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.interval_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Interval) -> str:", "funcdef": "def"}, "sqlglot.dialects.presto.Presto.Generator.transaction_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.transaction_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Transaction) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift": {"fullname": "sqlglot.dialects.redshift", "modulename": "sqlglot.dialects.redshift", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.redshift.Redshift": {"fullname": "sqlglot.dialects.redshift.Redshift", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres"}, "sqlglot.dialects.redshift.Redshift.Parser": {"fullname": "sqlglot.dialects.redshift.Redshift.Parser", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Parser"}, "sqlglot.dialects.redshift.Redshift.Tokenizer": {"fullname": "sqlglot.dialects.redshift.Redshift.Tokenizer", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres.Tokenizer"}, "sqlglot.dialects.redshift.Redshift.Generator": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Generator"}, "sqlglot.dialects.redshift.Redshift.Generator.values_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.values_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.values_sql", "kind": "function", "doc": "

Converts VALUES... expression into a series of unions.

\n\n

Note: If you have a lot of unions then this will result in a large number of recursive statements to\nevaluate the expression. You may need to increase sys.setrecursionlimit to run and it can also be\nvery slow.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.with_properties": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.with_properties", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.with_properties", "kind": "function", "doc": "

Redshift doesn't have WITH as part of their with_properties so we remove it

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.renametable_sql", "kind": "function", "doc": "

Redshift only supports defining the table name itself (not the db) when renaming tables

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.datatype_sql", "kind": "function", "doc": "

Redshift converts the TEXT data type to VARCHAR(255) by default when people more generally mean\nVARCHAR of max length which is VARCHAR(max) in Redshift. Therefore if we get a TEXT data type\nwithout precision we convert it to VARCHAR(max) and if it does have precision then we just convert\nTEXT to VARCHAR.

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake": {"fullname": "sqlglot.dialects.snowflake", "modulename": "sqlglot.dialects.snowflake", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.snowflake.Snowflake": {"fullname": "sqlglot.dialects.snowflake.Snowflake", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.snowflake.Snowflake.Parser": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Parser", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.snowflake.Snowflake.Tokenizer": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Tokenizer", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.snowflake.Snowflake.Generator": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.snowflake.Snowflake.Generator.except_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.except_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.values_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.

\n\n

We also want to make sure that after we find matches where we need to unquote a column that we prevent users\nfrom adding quotes to the column by using the identify argument when generating the SQL.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.settag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SetTag) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.select_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also\nthat all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need\nto unquote a column that we prevent users from adding quotes to the column by using the identify argument when\ngenerating the SQL.

\n\n

Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the\nexpression. This might not be true in a case where the same column name can be sourced from another table that can\nproperly quote but should be true in most cases.

\n", "signature": "(self, expression: sqlglot.expressions.Select) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark": {"fullname": "sqlglot.dialects.spark", "modulename": "sqlglot.dialects.spark", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.spark.Spark": {"fullname": "sqlglot.dialects.spark.Spark", "modulename": "sqlglot.dialects.spark", "qualname": "Spark", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive"}, "sqlglot.dialects.spark.Spark.Parser": {"fullname": "sqlglot.dialects.spark.Spark.Parser", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Parser"}, "sqlglot.dialects.spark.Spark.Generator": {"fullname": "sqlglot.dialects.spark.Spark.Generator", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Generator"}, "sqlglot.dialects.spark.Spark.Generator.cast_sql": {"fullname": "sqlglot.dialects.spark.Spark.Generator.cast_sql", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark.Spark.Tokenizer": {"fullname": "sqlglot.dialects.spark.Spark.Tokenizer", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive.Tokenizer"}, "sqlglot.dialects.sqlite": {"fullname": "sqlglot.dialects.sqlite", "modulename": "sqlglot.dialects.sqlite", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.sqlite.SQLite": {"fullname": "sqlglot.dialects.sqlite.SQLite", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.sqlite.SQLite.Tokenizer": {"fullname": "sqlglot.dialects.sqlite.SQLite.Tokenizer", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.sqlite.SQLite.Parser": {"fullname": "sqlglot.dialects.sqlite.SQLite.Parser", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.sqlite.SQLite.Generator": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.datediff_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.datediff_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.datediff_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DateDiff) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.groupconcat_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.least_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.least_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.least_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Least) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Transaction) -> str:", "funcdef": "def"}, "sqlglot.dialects.starrocks": {"fullname": "sqlglot.dialects.starrocks", "modulename": "sqlglot.dialects.starrocks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.starrocks.StarRocks": {"fullname": "sqlglot.dialects.starrocks.StarRocks", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.mysql.MySQL"}, "sqlglot.dialects.starrocks.StarRocks.Parser": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Parser", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Parser"}, "sqlglot.dialects.starrocks.StarRocks.Generator": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Generator", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Generator"}, "sqlglot.dialects.tableau": {"fullname": "sqlglot.dialects.tableau", "modulename": "sqlglot.dialects.tableau", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tableau.Tableau": {"fullname": "sqlglot.dialects.tableau.Tableau", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tableau.Tableau.Generator": {"fullname": "sqlglot.dialects.tableau.Tableau.Generator", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tableau.Tableau.Parser": {"fullname": "sqlglot.dialects.tableau.Tableau.Parser", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata": {"fullname": "sqlglot.dialects.teradata", "modulename": "sqlglot.dialects.teradata", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.teradata.Teradata": {"fullname": "sqlglot.dialects.teradata.Teradata", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.teradata.Teradata.Tokenizer": {"fullname": "sqlglot.dialects.teradata.Teradata.Tokenizer", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.teradata.Teradata.Parser": {"fullname": "sqlglot.dialects.teradata.Teradata.Parser", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata.Teradata.Generator": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.partitionedbyproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.update_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.update_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.update_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Update) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.mod_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.mod_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.rangen_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RangeN) -> str:", "funcdef": "def"}, "sqlglot.dialects.trino": {"fullname": "sqlglot.dialects.trino", "modulename": "sqlglot.dialects.trino", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.trino.Trino": {"fullname": "sqlglot.dialects.trino.Trino", "modulename": "sqlglot.dialects.trino", "qualname": "Trino", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto"}, "sqlglot.dialects.trino.Trino.Generator": {"fullname": "sqlglot.dialects.trino.Trino.Generator", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.presto.Presto.Generator"}, "sqlglot.dialects.trino.Trino.Tokenizer": {"fullname": "sqlglot.dialects.trino.Trino.Tokenizer", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto.Tokenizer"}, "sqlglot.dialects.tsql": {"fullname": "sqlglot.dialects.tsql", "modulename": "sqlglot.dialects.tsql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql": {"fullname": "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "generate_date_delta_with_unit_sql", "kind": "function", "doc": "

\n", "signature": "(self, e):", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL": {"fullname": "sqlglot.dialects.tsql.TSQL", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tsql.TSQL.Tokenizer": {"fullname": "sqlglot.dialects.tsql.TSQL.Tokenizer", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.tsql.TSQL.Parser": {"fullname": "sqlglot.dialects.tsql.TSQL.Parser", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.tsql.TSQL.Generator": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tsql.TSQL.Generator.offset_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.offset_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.systemtime_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SystemTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.returnsproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ReturnsProperty) -> str:", "funcdef": "def"}, "sqlglot.diff": {"fullname": "sqlglot.diff", "modulename": "sqlglot.diff", "kind": "module", "doc": "

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

Software is constantly changing and evolving, and identifying what has changed and reviewing those changes is an integral part of the development process. SQL code is no exception to this.

\n\n

Text-based diff tools such as git diff, when applied to a code base, have certain limitations. First, they can only detect insertions and deletions, not movements or updates of individual pieces of code. Second, such tools can only detect changes between lines of text, which is too coarse for something as granular and detailed as source code. Additionally, the outcome of such a diff is dependent on the underlying code formatting, and yields different results if the formatting should change.

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

Semantically the query hasn\u2019t changed. The two arguments b and c have been swapped (moved), posing no impact on the output of the query. Yet Git replaced the whole affected expression alongside a bulk of unrelated elements.

\n\n

The alternative to text-based diffing is to compare Abstract Syntax Trees (AST) instead. The main advantage of ASTs are that they are a direct product of code parsing, which represents the underlying code structure at any desired level of granularity. Comparing ASTs may yield extremely precise diffs; changes such as code movements and updates can also be detected. Even more importantly, this approach facilitates additional use cases beyond eyeballing two versions of source code side by side.

\n\n

The use cases I had in mind for SQL when I decided to embark on this journey of semantic diffing were the following:

\n\n
    \n
  • Query similarity score. Identifying which parts the two queries have in common to automatically suggest opportunities for consolidation, creation of intermediate/staging tables, and so on.
  • \n
  • Differentiating between cosmetic / structural changes and functional ones. For example when a nested query is refactored into a common table expression (CTE), this kind of change doesn\u2019t have any functional impact on either a query or its outcome.
  • \n
  • Automatic suggestions about the need to retroactively backfill data. This is especially important for pipelines that populate very large tables for which restatement is a runtime-intensive procedure. The ability to discern between simple code movements and actual modifications can help assess the impact of a change and make suggestions accordingly.
  • \n
\n\n

The implementation discussed in this post is now a part of the SQLGlot library. You can find a complete source code in the diff.py module. The choice of SQLglot was an obvious one due to its simple but powerful API, lack of external dependencies and, more importantly, extensive list of supported SQL dialects.

\n\n

The Search for a Solution

\n\n

When it comes to any diffing tool (not just a semantic one), the primary challenge is to match as many elements of compared entities as possible. Once such a set of matching elements is available, deriving a sequence of changes becomes an easy task.

\n\n

If our elements have unique identifiers associated with them (for example, an element\u2019s ID in DOM), the matching problem is trivial. However, the SQL syntax trees that we are comparing have neither unique keys nor object identifiers that can be used for the purposes of matching. So, how do we suppose to find pairs of nodes that are related?

\n\n

To better illustrate the problem, consider comparing the following SQL expressions: SELECT a + b + c, d, e and SELECT a - b + c, e, f. Matching individual nodes from respective syntax trees can be visualized as follows:

\n\n

\"Figure\nFigure 1: Example of node matching for two SQL expression trees.

\n\n

By looking at the figure of node matching for two SQL expression trees above, we conclude that the following changes should be captured by our solution:

\n\n
    \n
  • Inserted nodes: Sub and f. These are the nodes from the target AST which do not have a matching node in the source AST.
  • \n
  • Removed nodes: Add and d. These are the nodes from the source AST which do not have a counterpart in the target AST.
  • \n
  • Remaining nodes must be identified as unchanged.
  • \n
\n\n

It should be clear at this point that if we manage to match nodes in the source tree with their counterparts in the target tree, then computing the diff becomes a trivial matter.

\n\n

Na\u00efve Brute-Force

\n\n

The na\u00efve solution would be to try all different permutations of node pair combinations, and see which set of pairs performs the best based on some type of heuristics. The runtime cost of such a solution quickly reaches the escape velocity; if both trees had only 10 nodes each, the number of such sets would approximately be 10! ^ 2 = 3.6M ^ 2 ~= 13 * 10^12. This is a very bad case of factorial complexity (to be precise, it\u2019s actually much worse - O(n! ^ 2) - but I couldn\u2019t come up with a name for it), so there is little need to explore this approach any further.

\n\n

Myers Algorithm

\n\n

After the na\u00efve approach was proven to be infeasible, the next question I asked myself was \u201chow does git diff work?\u201d. This question led me to discover the Myers diff algorithm [1]. This algorithm has been designed to compare sequences of strings. At its core, it\u2019s looking for the shortest path on a graph of possible edits that transform the first sequence into the second one, while heavily rewarding those paths that lead to longest subsequences of unchanged elements. There\u2019s a lot of material out there describing this algorithm in greater detail. I found James Coglan\u2019s series of blog posts to be the most comprehensive.

\n\n

Therefore, I had this \u201cbrilliant\u201d (actually not) idea to transform trees into sequences by traversing them in topological order, and then applying the Myers algorithm on resulting sequences while using a custom heuristics when checking the equality of two nodes. Unsurprisingly, comparing sequences of strings is quite different from comparing hierarchical tree structures, and by flattening trees into sequences, we lose a lot of relevant context. This resulted in a terrible performance of this algorithm on ASTs. It often matched completely unrelated nodes, even when the two trees were mostly the same, and produced extremely inaccurate lists of changes overall. After playing around with it a little and tweaking my equality heuristics to improve accuracy, I ultimately scrapped the whole implementation and went back to the drawing board.

\n\n

Change Distiller

\n\n

The algorithm I settled on at the end was Change Distiller, created by Fluri et al. [2], which in turn is an improvement over the core idea described by Chawathe et al. [3].

\n\n

The algorithm consists of two high-level steps:

\n\n
    \n
  1. Finding appropriate matchings between pairs of nodes that are part of compared ASTs. Identifying what is meant by \u201cappropriate\u201d matching is also a part of this step.
  2. \n
  3. Generating the so-called \u201cedit script\u201d from the matching set built in the 1st step. The edit script is a sequence of edit operations (for example, insert, remove, update, etc.) on individual tree nodes, such that when applied as transformations on the source AST, it eventually becomes the target AST. In general, the shorter the sequence, the better. The length of the edit script can be used to compare the performance of different algorithms, though this is not the only metric that matters.
  4. \n
\n\n

The rest of this section is dedicated to the Python implementation of the steps above using the AST implementation provided by the SQLGlot library.

\n\n

Building the Matching Set

\n\n

Matching Leaves

\n\n

We begin composing the matching set by matching the leaf nodes. Leaf nodes are the nodes that do not have any children nodes (such as literals, identifiers, etc.). In order to match them, we gather all the leaf nodes from the source tree and generate a cartesian product with all the leaves from the target tree, while comparing pairs created this way and assigning them a similarity score. During this stage, we also exclude pairs that don\u2019t pass basic matching criteria. Then, we pick pairs that scored the highest while making sure that each node is matched no more than once.

\n\n

Using the example provided at the beginning of the post, the process of building an initial set of candidate matchings can be seen on Figure 2.

\n\n

\"Figure\nFigure 2: Building a set of candidate matchings between leaf nodes. The third item in each triplet represents a similarity score between two nodes.

\n\n

First, let\u2019s analyze the similarity score. Then, we\u2019ll discuss matching criteria.

\n\n

The similarity score proposed by Fluri et al. [2] is a dice coefficient applied to bigrams of respective node values. A bigram is a sequence of two adjacent elements from a string computed in a sliding window fashion:

\n\n
\n
def bigram(string):\n    count = max(0, len(string) - 1)\n    return [string[i : i + 2] for i in range(count)]\n
\n
\n\n

For reasons that will become clear shortly, we actually need to compute bigram histograms rather than just sequences:

\n\n
\n
from collections import defaultdict\n\ndef bigram_histo(string):\n    count = max(0, len(string) - 1)\n    bigram_histo = defaultdict(int)\n    for i in range(count):\n        bigram_histo[string[i : i + 2]] += 1\n    return bigram_histo\n
\n
\n\n

The dice coefficient formula looks like following:

\n\n

\"Dice

\n\n

Where X is a bigram of the source node and Y is a bigram of the second one. What this essentially does is count the number of bigram elements the two nodes have in common, multiply it by 2, and then divide by the total number of elements in both bigrams. This is where bigram histograms come in handy:

\n\n
\n
def dice_coefficient(source, target):\n    source_histo = bigram_histo(source.sql())\n    target_histo = bigram_histo(target.sql())\n\n    total_grams = (\n        sum(source_histo.values()) + sum(target_histo.values())\n    )\n    if not total_grams:\n        return 1.0 if source == target else 0.0\n\n    overlap_len = 0\n    overlapping_grams = set(source_histo) & set(target_histo)\n    for g in overlapping_grams:\n        overlap_len += min(source_histo[g], target_histo[g])\n\n    return 2 * overlap_len / total_grams\n
\n
\n\n

To compute a bigram given a tree node, we first transform the node into its canonical SQL representation,so that the Literal(123) node becomes just \u201c123\u201d and the Identifier(\u201ca\u201d) node becomes just \u201ca\u201d. We also handle a scenario when strings are too short to derive bigrams. In this case, we fallback to checking the two nodes for equality.

\n\n

Now when we know how to compute the similarity score, we can take care of the matching criteria for leaf nodes. In the original paper [2], the matching criteria is formalized as follows:

\n\n

\"Matching

\n\n

The two nodes are matched if two conditions are met:

\n\n
    \n
  1. The node labels match (in our case labels are just node types).
  2. \n
  3. The similarity score for node values is greater than or equal to some threshold \u201cf\u201d. The authors of the paper recommend setting the value of \u201cf\u201d to 0.6.
  4. \n
\n\n

With building blocks in place, we can now build a matching set for leaf nodes. First, we generate a list of candidates for matching:

\n\n
\n
from heapq import heappush, heappop\n\ncandidate_matchings = []\nsource_leaves = _get_leaves(self._source)\ntarget_leaves = _get_leaves(self._target)\nfor source_leaf in source_leaves:\n    for target_leaf in target_leaves:\n        if _is_same_type(source_leaf, target_leaf):\n            similarity_score = dice_coefficient(\n                source_leaf, target_leaf\n            )\n            if similarity_score >= 0.6:\n                heappush(\n                    candidate_matchings,\n                    (\n                        -similarity_score,\n                        len(candidate_matchings),\n                        source_leaf,\n                        target_leaf,\n                    ),\n                )\n
\n
\n\n

In the implementation above, we push each matching pair onto the heap to automatically maintain the correct order based on the assigned similarity score.

\n\n

Finally, we build the initial matching set by picking leaf pairs with the highest score:

\n\n
\n
matching_set = set()\nwhile candidate_matchings:\n    _, _, source_leaf, target_leaf = heappop(candidate_matchings)\n    if (\n        source_leaf in unmatched_source_nodes\n        and target_leaf in unmatched_target_nodes\n    ):\n        matching_set.add((source_leaf, target_leaf))\n        unmatched_source_nodes.remove(source_leaf)\n        unmatched_target_nodes.remove(target_leaf)\n
\n
\n\n

To finalize the matching set, we should now proceed with matching inner nodes.

\n\n

Matching Inner Nodes

\n\n

Matching inner nodes is quite similar to matching leaf nodes, with the following two distinctions:

\n\n
    \n
  • Rather than ranking a set of possible candidates, we pick the first node pair that passes the matching criteria.
  • \n
  • The matching criteria itself has been extended to account for the number of leaf nodes the pair of inner nodes have in common.
  • \n
\n\n

\"Figure\nFigure 3: Matching inner nodes based on their type as well as how many of their leaf nodes have been previously matched.

\n\n

Let\u2019s start with the matching criteria. The criteria is formalized as follows:

\n\n

\"Matching

\n\n

Alongside already familiar similarity score and node type criteria, there is a new one in the middle: the ratio of leaf nodes that the two nodes have in common must exceed some threshold \u201ct\u201d. The recommended value for \u201ct\u201d is also 0.6. Counting the number of common leaf nodes is pretty straightforward, since we already have the complete matching set for leaves. All we need to do is count how many matching pairs do leaf nodes from the two compared inner nodes form.

\n\n

There are two additional heuristics associated with this matching criteria:

\n\n
    \n
  • Inner node similarity weighting: if the similarity score between the node values doesn\u2019t pass the threshold \u201cf\u201d but the ratio of common leaf nodes (\u201ct\u201d) is greater than or equal to 0.8, then the matching is considered successful.
  • \n
  • The threshold \u201ct\u201d is reduced to 0.4 for inner nodes with the number of leaf nodes equal to 4 or less, in order to decrease the false negative rate for small subtrees.
  • \n
\n\n

We now only have to iterate through the remaining unmatched nodes and form matching pairs based on the outlined criteria:

\n\n
\n
leaves_matching_set = matching_set.copy()\n\nfor source_node in unmatched_source_nodes.copy():\n    for target_node in unmatched_target_nodes:\n        if _is_same_type(source_node, target_node):\n            source_leaves = set(_get_leaves(source_node))\n            target_leaves = set(_get_leaves(target_node))\n\n            max_leaves_num = max(len(source_leaves), len(target_leaves))\n            if max_leaves_num:\n                common_leaves_num = sum(\n                    1 if s in source_leaves and t in target_leaves else 0\n                    for s, t in leaves_matching_set\n                )\n                leaf_similarity_score = common_leaves_num / max_leaves_num\n            else:\n                leaf_similarity_score = 0.0\n\n            adjusted_t = (\n                0.6\n                if min(len(source_leaves), len(target_leaves)) > 4\n                else 0.4\n            )\n\n            if leaf_similarity_score >= 0.8 or (\n                leaf_similarity_score >= adjusted_t\n                and dice_coefficient(source_node, target_node) >= 0.6\n            ):\n                matching_set.add((source_node, target_node))\n                unmatched_source_nodes.remove(source_node)\n                unmatched_target_nodes.remove(target_node)\n                break\n
\n
\n\n

After the matching set is formed, we can proceed with generation of the edit script, which will be the algorithm\u2019s output.

\n\n

Generating the Edit Script

\n\n

At this point, we should have the following 3 sets at our disposal:

\n\n
    \n
  • The set of matched node pairs.
  • \n
  • The set of remaining unmatched nodes from the source tree.
  • \n
  • The set of remaining unmatched nodes from the target tree.
  • \n
\n\n

We can derive 3 kinds of edits from the matching set: either the node\u2019s value was updated (Update), the node was moved to a different position within the tree (Move), or the node remained unchanged (Keep). Note that the Move case is not mutually exclusive with the other two. The node could have been updated or could have remained the same while at the same time its position within its parent node or the parent node itself could have changed. All unmatched nodes from the source tree are the ones that were removed (Remove), while unmatched nodes from the target tree are the ones that were inserted (Insert).

\n\n

The latter two cases are pretty straightforward to implement:

\n\n
\n
edit_script = []\n\nfor removed_node in unmatched_source_nodes:\n    edit_script.append(Remove(removed_node))\nfor inserted_node in unmatched_target_nodes:\n    edit_script.append(Insert(inserted_node))\n
\n
\n\n

Traversing the matching set requires a little more thought:

\n\n
\n
for source_node, target_node in matching_set:\n    if (\n        not isinstance(source_node, LEAF_EXPRESSION_TYPES)\n        or source_node == target_node\n    ):\n        move_edits = generate_move_edits(\n            source_node, target_node, matching_set\n        )\n        edit_script.extend(move_edits)\n        edit_script.append(Keep(source_node, target_node))\n    else:\n        edit_script.append(Update(source_node, target_node))\n
\n
\n\n

If a matching pair represents a pair of leaf nodes, we check if they are the same to decide whether an update took place. For inner node pairs, we also need to compare the positions of their respective children to detect node movements. Chawathe et al. [3] suggest applying the longest common subsequence (LCS) algorithm which, no surprise here, was described by Myers himself [1]. There is a small catch, however: instead of checking the equality of two children nodes, we need to check whether the two nodes form a pair that is a part of our matching set.

\n\n

Now with this knowledge, the implementation becomes straightforward:

\n\n
\n
def generate_move_edits(source, target, matching_set):\n    source_children = _get_child_nodes(source)\n    target_children = _get_child_nodes(target)\n\n    lcs = set(\n        _longest_common_subsequence(\n            source_children,\n            target_children,\n            lambda l, r: (l, r) in matching_set\n        )\n    )\n\n    move_edits = []\n    for node in source_children:\n        if node not in lcs and node not in unmatched_source_nodes:\n            move_edits.append(Move(node))\n\n    return move_edits\n
\n
\n\n

I left out the implementation of the LCS algorithm itself here, but there are plenty of implementation choices out there that can be easily looked up.

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

\n\n
\n
>>> from sqlglot import parse_one, diff\n>>> diff(parse_one("SELECT a + b + c, d, e"), parse_one("SELECT a - b + c, e, f"))\n\nRemove(Add)\nRemove(Column(d))\nRemove(Identifier(d))\nInsert(Sub)\nInsert(Column(f))\nInsert(Identifier(f))\nKeep(Select, Select)\nKeep(Add, Add)\nKeep(Column(a), Column(a))\nKeep(Identifier(a), Identifier(a))\nKeep(Column(b), Column(b))\nKeep(Identifier(b), Identifier(b))\nKeep(Column(c), Column(c))\nKeep(Identifier(c), Identifier(c))\nKeep(Column(e), Column(e))\nKeep(Identifier(e), Identifier(e))\n
\n
\n\n

Note that the output above is abbreviated. The string representation of actual AST nodes is significantly more verbose.

\n\n

The implementation works especially well when coupled with the SQLGlot\u2019s query optimizer which can be used to produce canonical representations of compared queries:

\n\n
\n
>>> schema={"t": {"a": "INT", "b": "INT", "c": "INT", "d": "INT"}}\n>>> source = """\n... SELECT 1 + 1 + a\n... FROM t\n... WHERE b = 1 OR (c = 2 AND d = 3)\n... """\n>>> target = """\n... SELECT 2 + a\n... FROM t\n... WHERE (b = 1 OR c = 2) AND (b = 1 OR d = 3)\n... """\n>>> optimized_source = optimize(parse_one(source), schema=schema)\n>>> optimized_target = optimize(parse_one(target), schema=schema)\n>>> edit_script = diff(optimized_source, optimized_target)\n>>> sum(0 if isinstance(e, Keep) else 1 for e in edit_script)\n0\n
\n
\n\n

Optimizations

\n\n

The worst case runtime complexity of this algorithm is not exactly stellar: O(n^2 * log n^2). This is because of the leaf matching process, which involves ranking a cartesian product between all leaf nodes of compared trees. Unsurprisingly, the algorithm takes a considerable time to finish for bigger queries.

\n\n

There are still a few basic things we can do in our implementation to help improve performance:

\n\n
    \n
  • Refer to individual node objects using their identifiers (Python\u2019s id()) instead of direct references in sets. This helps avoid costly recursive hash calculations and equality checks.
  • \n
  • Cache bigram histograms to avoid computing them more than once for the same node.
  • \n
  • Compute the canonical SQL string representation for each tree once while caching string representations of all inner nodes. This prevents redundant tree traversals when bigrams are computed.
  • \n
\n\n

At the time of writing only the first two optimizations have been implemented, so there is an opportunity to contribute for anyone who\u2019s interested.

\n\n

Alternative Solutions

\n\n

This section is dedicated to solutions that I\u2019ve investigated, but haven\u2019t tried.

\n\n

First, this section wouldn\u2019t be complete without Tristan Hume\u2019s blog post. Tristan\u2019s solution has a lot in common with the Myers algorithm plus heuristics that is much more clever than what I came up with. The implementation relies on a combination of dynamic programming and A* search algorithm to explore the space of possible matchings and pick the best ones. It seemed to have worked well for Tistan\u2019s specific use case, but after my negative experience with the Myers algorithm, I decided to try something different.

\n\n

Another notable approach is the Gumtree algorithm by Falleri et al. [4]. I discovered this paper after I\u2019d already implemented the algorithm that is the main focus of this post. In sections 5.2 and 5.3 of their paper, the authors compare the two algorithms side by side and claim that Gumtree is significantly better in terms of both runtime performance and accuracy when evaluated on 12 792 pairs of Java source files. This doesn\u2019t surprise me, as the algorithm takes the height of subtrees into account. In my tests, I definitely saw scenarios in which this context would have helped. On top of that, the authors promise O(n^2) runtime complexity in the worst case which, given the Change Distiller's O(n^2 * log n^2), looks particularly tempting. I hope to try this algorithm out at some point, and there is a good chance you see me writing about it in my future posts.

\n\n

Conclusion

\n\n

The Change Distiller algorithm yielded quite satisfactory results in most of my tests. The scenarios in which it fell short mostly concerned identical (or very similar) subtrees located in different parts of the AST. In those cases, node mismatches were frequent and, as a result, edit scripts were somewhat suboptimal.

\n\n

Additionally, the runtime performance of the algorithm leaves a lot to be desired. On trees with 1000 leaf nodes each, the algorithm takes a little under 2 seconds to complete. My implementation still has room for improvement, but this should give you a rough idea of what to expect. It appears that the Gumtree algorithm [4] can help address both of these points. I hope to find bandwidth to work on it soon and then compare the two algorithms side-by-side to find out which one performs better on SQL specifically. In the meantime, Change Distiller definitely gets the job done, and I can now proceed with applying it to some of the use cases I mentioned at the beginning of this post.

\n\n

I\u2019m also curious to learn whether other folks in the industry faced a similar problem, and how they approached it. If you did something similar, I\u2019m interested to hear about your experience.

\n\n

References

\n\n

[1] Eugene W. Myers. An O(ND) Difference Algorithm and Its Variations. Algorithmica 1(2): 251-266 (1986)

\n\n

[2] B. Fluri, M. Wursch, M. Pinzger, and H. Gall. Change Distilling: Tree differencing for fine-grained source code change extraction. IEEE Trans. Software Eng., 33(11):725\u2013743, 2007.

\n\n

[3] S.S. Chawathe, A. Rajaraman, H. Garcia-Molina, and J. Widom. Change Detection in Hierarchically Structured Information. Proc. ACM Sigmod Int\u2019l Conf. Management of Data, pp. 493-504, June 1996

\n\n

[4] Jean-R\u00e9my Falleri, Flor\u00e9al Morandat, Xavier Blanc, Matias Martinez, Martin Monperrus. Fine-grained and Accurate Source Code Differencing. Proceedings of the International Conference on Automated Software Engineering, 2014, V\u00e4steras, Sweden. pp.313-324, 10.1145/2642937.2642982. hal-01054552

\n\n
\n"}, "sqlglot.diff.Insert": {"fullname": "sqlglot.diff.Insert", "modulename": "sqlglot.diff", "qualname": "Insert", "kind": "class", "doc": "

Indicates that a new node has been inserted

\n"}, "sqlglot.diff.Insert.__init__": {"fullname": "sqlglot.diff.Insert.__init__", "modulename": "sqlglot.diff", "qualname": "Insert.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Remove": {"fullname": "sqlglot.diff.Remove", "modulename": "sqlglot.diff", "qualname": "Remove", "kind": "class", "doc": "

Indicates that an existing node has been removed

\n"}, "sqlglot.diff.Remove.__init__": {"fullname": "sqlglot.diff.Remove.__init__", "modulename": "sqlglot.diff", "qualname": "Remove.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Move": {"fullname": "sqlglot.diff.Move", "modulename": "sqlglot.diff", "qualname": "Move", "kind": "class", "doc": "

Indicates that an existing node's position within the tree has changed

\n"}, "sqlglot.diff.Move.__init__": {"fullname": "sqlglot.diff.Move.__init__", "modulename": "sqlglot.diff", "qualname": "Move.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Update": {"fullname": "sqlglot.diff.Update", "modulename": "sqlglot.diff", "qualname": "Update", "kind": "class", "doc": "

Indicates that an existing node has been updated

\n"}, "sqlglot.diff.Update.__init__": {"fullname": "sqlglot.diff.Update.__init__", "modulename": "sqlglot.diff", "qualname": "Update.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.Keep": {"fullname": "sqlglot.diff.Keep", "modulename": "sqlglot.diff", "qualname": "Keep", "kind": "class", "doc": "

Indicates that an existing node hasn't been changed

\n"}, "sqlglot.diff.Keep.__init__": {"fullname": "sqlglot.diff.Keep.__init__", "modulename": "sqlglot.diff", "qualname": "Keep.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.diff": {"fullname": "sqlglot.diff.diff", "modulename": "sqlglot.diff", "qualname": "diff", "kind": "function", "doc": "

Returns the list of changes between the source and the target expressions.

\n\n
Examples:
\n\n
\n
\n
>>> diff(parse_one("a + b"), parse_one("a + c"))\n[\n    Remove(expression=(COLUMN this: (IDENTIFIER this: b, quoted: False))),\n    Insert(expression=(COLUMN this: (IDENTIFIER this: c, quoted: False))),\n    Keep(\n        source=(ADD this: ...),\n        target=(ADD this: ...)\n    ),\n    Keep(\n        source=(COLUMN this: (IDENTIFIER this: a, quoted: False)),\n        target=(COLUMN this: (IDENTIFIER this: a, quoted: False))\n    ),\n]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • source: the source expression.
  • \n
  • target: the target expression against which the diff should be calculated.
  • \n
  • matchings: the list of pre-matched node pairs which is used to help the algorithm's\nheuristics produce better results for subtrees that are known by a caller to be matching.\nNote: expression references in this list must refer to the same node objects that are\nreferenced in source / target trees.
  • \n
\n\n
Returns:
\n\n
\n

the list of Insert, Remove, Move, Update and Keep objects for each node in the source and the\n target expression trees. This list represents a sequence of steps needed to transform the source\n expression tree into the target one.

\n
\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None,\t**kwargs: Any) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.diff.ChangeDistiller": {"fullname": "sqlglot.diff.ChangeDistiller", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller", "kind": "class", "doc": "

The implementation of the Change Distiller algorithm described by Beat Fluri and Martin Pinzger in\ntheir paper https://ieeexplore.ieee.org/document/4339230, which in turn is based on the algorithm by\nChawathe et al. described in http://ilpubs.stanford.edu:8090/115/1/1995-46.pdf.

\n"}, "sqlglot.diff.ChangeDistiller.__init__": {"fullname": "sqlglot.diff.ChangeDistiller.__init__", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.__init__", "kind": "function", "doc": "

\n", "signature": "(f: float = 0.6, t: float = 0.6)"}, "sqlglot.diff.ChangeDistiller.diff": {"fullname": "sqlglot.diff.ChangeDistiller.diff", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.diff", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.errors": {"fullname": "sqlglot.errors", "modulename": "sqlglot.errors", "kind": "module", "doc": "

\n"}, "sqlglot.errors.ErrorLevel": {"fullname": "sqlglot.errors.ErrorLevel", "modulename": "sqlglot.errors", "qualname": "ErrorLevel", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.errors.ErrorLevel.IGNORE": {"fullname": "sqlglot.errors.ErrorLevel.IGNORE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IGNORE", "kind": "variable", "doc": "

Ignore all errors.

\n", "default_value": "<ErrorLevel.IGNORE: 'IGNORE'>"}, "sqlglot.errors.ErrorLevel.WARN": {"fullname": "sqlglot.errors.ErrorLevel.WARN", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.WARN", "kind": "variable", "doc": "

Log all errors.

\n", "default_value": "<ErrorLevel.WARN: 'WARN'>"}, "sqlglot.errors.ErrorLevel.RAISE": {"fullname": "sqlglot.errors.ErrorLevel.RAISE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.RAISE", "kind": "variable", "doc": "

Collect all errors and raise a single exception.

\n", "default_value": "<ErrorLevel.RAISE: 'RAISE'>"}, "sqlglot.errors.ErrorLevel.IMMEDIATE": {"fullname": "sqlglot.errors.ErrorLevel.IMMEDIATE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IMMEDIATE", "kind": "variable", "doc": "

Immediately raise an exception on the first error found.

\n", "default_value": "<ErrorLevel.IMMEDIATE: 'IMMEDIATE'>"}, "sqlglot.errors.SqlglotError": {"fullname": "sqlglot.errors.SqlglotError", "modulename": "sqlglot.errors", "qualname": "SqlglotError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "builtins.Exception"}, "sqlglot.errors.UnsupportedError": {"fullname": "sqlglot.errors.UnsupportedError", "modulename": "sqlglot.errors", "qualname": "UnsupportedError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError": {"fullname": "sqlglot.errors.ParseError", "modulename": "sqlglot.errors", "qualname": "ParseError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError.__init__": {"fullname": "sqlglot.errors.ParseError.__init__", "modulename": "sqlglot.errors", "qualname": "ParseError.__init__", "kind": "function", "doc": "

\n", "signature": "(message: str, errors: Optional[List[Dict[str, Any]]] = None)"}, "sqlglot.errors.ParseError.new": {"fullname": "sqlglot.errors.ParseError.new", "modulename": "sqlglot.errors", "qualname": "ParseError.new", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmessage: str,\tdescription: Optional[str] = None,\tline: Optional[int] = None,\tcol: Optional[int] = None,\tstart_context: Optional[str] = None,\thighlight: Optional[str] = None,\tend_context: Optional[str] = None,\tinto_expression: Optional[str] = None) -> sqlglot.errors.ParseError:", "funcdef": "def"}, "sqlglot.errors.TokenError": {"fullname": "sqlglot.errors.TokenError", "modulename": "sqlglot.errors", "qualname": "TokenError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.OptimizeError": {"fullname": "sqlglot.errors.OptimizeError", "modulename": "sqlglot.errors", "qualname": "OptimizeError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.SchemaError": {"fullname": "sqlglot.errors.SchemaError", "modulename": "sqlglot.errors", "qualname": "SchemaError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ExecuteError": {"fullname": "sqlglot.errors.ExecuteError", "modulename": "sqlglot.errors", "qualname": "ExecuteError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.concat_messages": {"fullname": "sqlglot.errors.concat_messages", "modulename": "sqlglot.errors", "qualname": "concat_messages", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[Any], maximum: int) -> str:", "funcdef": "def"}, "sqlglot.errors.merge_errors": {"fullname": "sqlglot.errors.merge_errors", "modulename": "sqlglot.errors", "qualname": "merge_errors", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[sqlglot.errors.ParseError]) -> List[Dict[str, Any]]:", "funcdef": "def"}, "sqlglot.executor": {"fullname": "sqlglot.executor", "modulename": "sqlglot.executor", "kind": "module", "doc": "

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

When I first started writing SQLGlot in early 2021, my goal was just to translate SQL queries from SparkSQL to Presto and vice versa. However, over the last year and a half, I've ended up with a full-fledged SQL engine. SQLGlot can now parse and transpile between 18 SQL dialects and can execute all 24 TPC-H SQL queries. The parser and engine are all written from scratch using Python.

\n\n

This post will cover why I went through the effort of creating a Python SQL engine and how a simple query goes from a string to actually transforming data. The following steps are briefly summarized:

\n\n\n\n

Why?

\n\n

I started working on SQLGlot because of my work on the experimentation and metrics platform at Netflix, where I built tools that allowed data scientists to define and compute SQL-based metrics. Netflix relied on multiple engines to query data (Spark, Presto, and Druid), so my team built the metrics platform around PyPika, a Python SQL query builder. This way, definitions could be reused across multiple engines. However, it became quickly apparent that writing python code to programmatically generate SQL was challenging for data scientists, especially those with academic backgrounds, since they were mostly familiar with R and SQL. At the time, the only Python SQL parser was sqlparse, which is not actually a parser but a tokenizer, so having users write raw SQL into the platform wasn't really an option. Some time later, I randomly stumbled across Crafting Interpreters and realized that I could use it as a guide towards creating my own SQL parser/transpiler.

\n\n

Why did I do this? Isn't a Python SQL engine going to be extremely slow?

\n\n

The main reason why I ended up building a SQL engine was...just for entertainment. It's been fun learning about all the things required to actually run a SQL query, and seeing it actually work is extremely rewarding. Before SQLGlot, I had zero experience with lexers, parsers, or compilers.

\n\n

In terms of practical use cases, I planned to use the Python SQL engine for unit testing SQL pipelines. Big data pipelines are tough to test because many of the engines are not open source and cannot be run locally. With SQLGlot, you can take a SQL query targeting a warehouse such as Snowflake and seamlessly run it in CI on mock Python data. It's easy to mock data and create arbitrary UDFs because everything is just Python. Although the implementation is slow and unsuitable for large amounts of data (> 1 million rows), there's very little overhead/startup and you can run queries on test data in a couple of milliseconds.

\n\n

Finally, the components that have been built to support execution can be used as a foundation for a faster engine. I'm inspired by what Apache Calcite has done for the JVM world. Even though Python is commonly used for data, there hasn't been a Calcite for Python. So, you could say that SQLGlot aims to be that framework. For example, it wouldn't take much work to replace the Python execution engine with numpy/pandas/arrow to become a respectably-performing query engine. The implementation would be able to leverage the parser, optimizer, and logical planner, only needing to implement physical execution. There is a lot of work in the Python ecosystem around high performance vectorized computation, which I think could benefit from a pure Python-based AST/plan. Parsing and planning doesn't have to be fast when the bottleneck of running queries is processing terabytes of data. So, having a Python-based ecosystem around SQL is beneficial given the ease of development in Python, despite not having bare metal performance.

\n\n

Parts of SQLGlot's toolkit are being used today by the following:

\n\n
    \n
  • Ibis: A Python library that provides a lightweight, universal interface for data wrangling.\n
      \n
    • Uses the Python SQL expression builder and leverages the optimizer/planner to convert SQL into dataframe operations.
    • \n
  • \n
  • mysql-mimic: Pure-Python implementation of the MySQL server wire protocol\n
      \n
    • Parses / transforms SQL and executes INFORMATION_SCHEMA queries.
    • \n
  • \n
  • Quokka: Push-based vectorized query engine\n
      \n
    • Parse and optimizes SQL.
    • \n
  • \n
  • Splink: Fast, accurate and scalable probabilistic data linkage using your choice of SQL backend.\n
      \n
    • Transpiles queries.
    • \n
  • \n
\n\n

How?

\n\n

There are many steps involved with actually running a simple query like:

\n\n
\n
SELECT\n  bar.a,\n  b + 1 AS b\nFROM bar\nJOIN baz\n  ON bar.a = baz.a\nWHERE bar.a > 1\n
\n
\n\n

In this post, I'll walk through all the steps SQLGlot takes to run this query over Python objects.

\n\n

Tokenizing

\n\n

The first step is to convert the sql string into a list of tokens. SQLGlot's tokenizer is quite simple and can be found here. In a while loop, it checks each character and either appends the character to the current token, or makes a new token.

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

Each keyword has been converted to a SQLGlot Token object. Each token has some metadata associated with it, like line/column information for error messages. Comments are also a part of the token, so that comments can be preserved.

\n\n

Parsing

\n\n

Once a SQL statement is tokenized, we don't need to worry about white space and other formatting, so it's easier to work with. We can now convert the list of tokens into an AST. The SQLGlot parser is a handwritten recursive descent parser.

\n\n

Similar to the tokenizer, it consumes the tokens sequentially, but it instead uses a recursive algorithm. The tokens are converted into a single AST node that presents the SQL query. The SQLGlot parser was designed to support various dialects, so it contains many options for overriding parsing functionality.

\n\n

\"Parser

\n\n

The AST is a generic representation of a given SQL query. Each dialect can override or implement its own generator, which can convert an AST object into syntatically-correct SQL.

\n\n

Optimizing

\n\n

Once we have our AST, we can transform it into an equivalent query that produces the same results more efficiently. When optimizing queries, most engines first convert the AST into a logical plan and then optimize the plan. However, I chose to optimize the AST directly for the following reasons:

\n\n
    \n
  1. It's easier to debug and validate the optimizations when the input and output are both SQL.

  2. \n
  3. Rules can be applied a la carte to transform SQL into a more desirable form.

  4. \n
  5. I wanted a way to generate 'canonical sql'. Having a canonical representation of SQL is useful for understanding if two queries are semantically equivalent (e.g. SELECT 1 + 1 and SELECT 2).

  6. \n
\n\n

I've yet to find another engine that takes this approach, but I'm quite happy with this decision. The optimizer currently does not perform any \"physical optimizations\" such as join reordering. Those are left to the execution layer, as additional statistics and information could become relevant.

\n\n

\"Optimizer

\n\n

The optimizer currently has 17 rules. Each of these rules is applied, transforming the AST in place. The combination of these rules creates \"canonical\" sql that can then be more easily converted into a logical plan and executed.

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

\n\n
    \n
  • Adds all db/catalog qualifiers to tables and forces an alias.
  • \n
  • Ensure each column is unambiguous and expand stars.
  • \n
\n\n
\n
SELECT * FROM x;\n\nSELECT "db"."x" AS "x";\n
\n
\n\n

simplify

\n\n

Boolean and math simplification. Check out all the test cases.

\n\n
\n
((NOT FALSE) AND (x = x)) AND (TRUE OR 1 <> 3);\nx = x;\n\n1 + 1;\n2;\n
\n
\n\n

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

\n\n
\n
-- DNF\n(A AND B) OR (B AND C AND D);\n\n-- CNF\n(A OR C) AND (A OR D) AND B;\n
\n
\n\n

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

\n\n
\n
-- The subquery can be converted into a left join\nSELECT *\nFROM x AS x\nWHERE (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE x.a = y.a\n) = 1;\n\nSELECT *\nFROM x AS x\nLEFT JOIN (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE TRUE\n  GROUP BY y.a\n) AS "_u_0"\n  ON x.a = "_u_0".a\nWHERE ("_u_0".a = 1 AND NOT "_u_0".a IS NULL)\n
\n
\n\n

pushdown_predicates

\n\n

Push down filters into the innermost query.

\n\n
\n
SELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n) AS y\nWHERE y.a = 1;\n\nSELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n  WHERE y.a = 1\n) AS y WHERE TRUE\n
\n
\n\n

annotate_types

\n\n

Infer all types throughout the AST given schema information and function type definitions.

\n\n

Planning

\n\n

After the SQL AST has been \"optimized\", it's much easier to convert into a logical plan. The AST is traversed and converted into a DAG consisting of one of five steps. The different steps are:

\n\n

Scan

\n\n

Selects columns from a table, applies projections, and finally filters the table.

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

Applies the operators union/union all/except/intersect.

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

The logical plan is quite simple and contains the information required to convert it into a physical plan (execution).

\n\n

Executing

\n\n

Finally, we can actually execute the SQL query. The Python engine is not fast, but it's very small (~400 LOC)! It iterates the DAG with a queue and runs each step, passing each intermediary table to the next step.

\n\n

In order to keep things simple, it evaluates expressions with eval. Because SQLGlot was built primarily to be a transpiler, it was simple to create a \"Python SQL\" dialect. So a SQL expression x + 1 can just be converted into scope['x'] + 1.

\n\n

\"Executor

\n\n

What's next

\n\n

SQLGlot's main focus will always be on parsing/transpiling, but I plan to continue development on the execution engine. I'd like to pass TPC-DS. If someone doesn't beat me to it, I may even take a stab at writing a Pandas/Arrow execution engine.

\n\n

I'm hoping that over time, SQLGlot will spark the Python SQL ecosystem just like Calcite has for Java.

\n\n

Special thanks

\n\n

SQLGlot would not be what it is without it's core contributors. In particular, the execution engine would not exist without Barak Alon and George Sittas.

\n\n

Get in touch

\n\n

If you'd like to chat more about SQLGlot, please join my Slack Channel!

\n\n
\n"}, "sqlglot.executor.execute": {"fullname": "sqlglot.executor.execute", "modulename": "sqlglot.executor", "qualname": "execute", "kind": "function", "doc": "

Run a sql query against data.

\n\n
Arguments:
\n\n
    \n
  • sql: a sql statement.
  • \n
  • schema: database schema.\nThis can either be an instance of Schema or a mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • tables: additional tables to register.
  • \n
\n\n
Returns:
\n\n
\n

Simple columnar data structure.

\n
\n", "signature": "(\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\ttables: Optional[Dict] = None) -> sqlglot.executor.table.Table:", "funcdef": "def"}, "sqlglot.executor.context": {"fullname": "sqlglot.executor.context", "modulename": "sqlglot.executor.context", "kind": "module", "doc": "

\n"}, "sqlglot.executor.context.Context": {"fullname": "sqlglot.executor.context.Context", "modulename": "sqlglot.executor.context", "qualname": "Context", "kind": "class", "doc": "

Execution context for sql expressions.

\n\n

Context is used to hold relevant data tables which can then be queried on with eval.

\n\n

References to columns can either be scalar or vectors. When set_row is used, column references\nevaluate to scalars while set_range evaluates to vectors. This allows convenient and efficient\nevaluation of aggregation functions.

\n"}, "sqlglot.executor.context.Context.__init__": {"fullname": "sqlglot.executor.context.Context.__init__", "modulename": "sqlglot.executor.context", "qualname": "Context.__init__", "kind": "function", "doc": "

Args\n tables: representing the scope of the current execution context.\n env: dictionary of functions within the execution context.

\n", "signature": "(\ttables: Dict[str, sqlglot.executor.table.Table],\tenv: Optional[Dict] = None)"}, "sqlglot.executor.context.Context.eval": {"fullname": "sqlglot.executor.context.Context.eval", "modulename": "sqlglot.executor.context", "qualname": "Context.eval", "kind": "function", "doc": "

\n", "signature": "(self, code):", "funcdef": "def"}, "sqlglot.executor.context.Context.eval_tuple": {"fullname": "sqlglot.executor.context.Context.eval_tuple", "modulename": "sqlglot.executor.context", "qualname": "Context.eval_tuple", "kind": "function", "doc": "

\n", "signature": "(self, codes):", "funcdef": "def"}, "sqlglot.executor.context.Context.add_columns": {"fullname": "sqlglot.executor.context.Context.add_columns", "modulename": "sqlglot.executor.context", "qualname": "Context.add_columns", "kind": "function", "doc": "

\n", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.table_iter": {"fullname": "sqlglot.executor.context.Context.table_iter", "modulename": "sqlglot.executor.context", "qualname": "Context.table_iter", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: str) -> Iterator[Tuple[sqlglot.executor.table.TableIter, sqlglot.executor.context.Context]]:", "funcdef": "def"}, "sqlglot.executor.context.Context.filter": {"fullname": "sqlglot.executor.context.Context.filter", "modulename": "sqlglot.executor.context", "qualname": "Context.filter", "kind": "function", "doc": "

\n", "signature": "(self, condition) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.sort": {"fullname": "sqlglot.executor.context.Context.sort", "modulename": "sqlglot.executor.context", "qualname": "Context.sort", "kind": "function", "doc": "

\n", "signature": "(self, key) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_row": {"fullname": "sqlglot.executor.context.Context.set_row", "modulename": "sqlglot.executor.context", "qualname": "Context.set_row", "kind": "function", "doc": "

\n", "signature": "(self, row: Tuple) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_index": {"fullname": "sqlglot.executor.context.Context.set_index", "modulename": "sqlglot.executor.context", "qualname": "Context.set_index", "kind": "function", "doc": "

\n", "signature": "(self, index: int) -> None:", "funcdef": "def"}, "sqlglot.executor.context.Context.set_range": {"fullname": "sqlglot.executor.context.Context.set_range", "modulename": "sqlglot.executor.context", "qualname": "Context.set_range", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> None:", "funcdef": "def"}, "sqlglot.executor.env": {"fullname": "sqlglot.executor.env", "modulename": "sqlglot.executor.env", "kind": "module", "doc": "

\n"}, "sqlglot.executor.env.reverse_key": {"fullname": "sqlglot.executor.env.reverse_key", "modulename": "sqlglot.executor.env", "qualname": "reverse_key", "kind": "class", "doc": "

\n"}, "sqlglot.executor.env.reverse_key.__init__": {"fullname": "sqlglot.executor.env.reverse_key.__init__", "modulename": "sqlglot.executor.env", "qualname": "reverse_key.__init__", "kind": "function", "doc": "

\n", "signature": "(obj)"}, "sqlglot.executor.env.filter_nulls": {"fullname": "sqlglot.executor.env.filter_nulls", "modulename": "sqlglot.executor.env", "qualname": "filter_nulls", "kind": "function", "doc": "

\n", "signature": "(func, empty_null=True):", "funcdef": "def"}, "sqlglot.executor.env.null_if_any": {"fullname": "sqlglot.executor.env.null_if_any", "modulename": "sqlglot.executor.env", "qualname": "null_if_any", "kind": "function", "doc": "

Decorator that makes a function return None if any of the required arguments are None.

\n\n

This also supports decoration with no arguments, e.g.:

\n\n
@null_if_any\ndef foo(a, b): ...\n
\n\n

In which case all arguments are required.

\n", "signature": "(*required):", "funcdef": "def"}, "sqlglot.executor.env.str_position": {"fullname": "sqlglot.executor.env.str_position", "modulename": "sqlglot.executor.env", "qualname": "str_position", "kind": "function", "doc": "

\n", "signature": "(substr, this, position=None):", "funcdef": "def"}, "sqlglot.executor.env.substring": {"fullname": "sqlglot.executor.env.substring", "modulename": "sqlglot.executor.env", "qualname": "substring", "kind": "function", "doc": "

\n", "signature": "(this, start=None, length=None):", "funcdef": "def"}, "sqlglot.executor.env.cast": {"fullname": "sqlglot.executor.env.cast", "modulename": "sqlglot.executor.env", "qualname": "cast", "kind": "function", "doc": "

\n", "signature": "(this, to):", "funcdef": "def"}, "sqlglot.executor.env.ordered": {"fullname": "sqlglot.executor.env.ordered", "modulename": "sqlglot.executor.env", "qualname": "ordered", "kind": "function", "doc": "

\n", "signature": "(this, desc, nulls_first):", "funcdef": "def"}, "sqlglot.executor.env.interval": {"fullname": "sqlglot.executor.env.interval", "modulename": "sqlglot.executor.env", "qualname": "interval", "kind": "function", "doc": "

\n", "signature": "(this, unit):", "funcdef": "def"}, "sqlglot.executor.python": {"fullname": "sqlglot.executor.python", "modulename": "sqlglot.executor.python", "kind": "module", "doc": "

\n"}, "sqlglot.executor.python.PythonExecutor": {"fullname": "sqlglot.executor.python.PythonExecutor", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor", "kind": "class", "doc": "

\n"}, "sqlglot.executor.python.PythonExecutor.__init__": {"fullname": "sqlglot.executor.python.PythonExecutor.__init__", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.__init__", "kind": "function", "doc": "

\n", "signature": "(env=None, tables=None)"}, "sqlglot.executor.python.PythonExecutor.execute": {"fullname": "sqlglot.executor.python.PythonExecutor.execute", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.execute", "kind": "function", "doc": "

\n", "signature": "(self, plan):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.generate": {"fullname": "sqlglot.executor.python.PythonExecutor.generate", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.generate", "kind": "function", "doc": "

Convert a SQL expression into literal Python code and compile it into bytecode.

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.generate_tuple": {"fullname": "sqlglot.executor.python.PythonExecutor.generate_tuple", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.generate_tuple", "kind": "function", "doc": "

Convert an array of SQL expressions into tuple of Python byte code.

\n", "signature": "(self, expressions):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.context": {"fullname": "sqlglot.executor.python.PythonExecutor.context", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.context", "kind": "function", "doc": "

\n", "signature": "(self, tables):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.table": {"fullname": "sqlglot.executor.python.PythonExecutor.table", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.table", "kind": "function", "doc": "

\n", "signature": "(self, expressions):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan": {"fullname": "sqlglot.executor.python.PythonExecutor.scan", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.static": {"fullname": "sqlglot.executor.python.PythonExecutor.static", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.static", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan_table": {"fullname": "sqlglot.executor.python.PythonExecutor.scan_table", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan_table", "kind": "function", "doc": "

\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan_csv": {"fullname": "sqlglot.executor.python.PythonExecutor.scan_csv", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan_csv", "kind": "function", "doc": "

\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.join": {"fullname": "sqlglot.executor.python.PythonExecutor.join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.join", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.nested_loop_join": {"fullname": "sqlglot.executor.python.PythonExecutor.nested_loop_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.nested_loop_join", "kind": "function", "doc": "

\n", "signature": "(self, _join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.hash_join": {"fullname": "sqlglot.executor.python.PythonExecutor.hash_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.hash_join", "kind": "function", "doc": "

\n", "signature": "(self, join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.aggregate": {"fullname": "sqlglot.executor.python.PythonExecutor.aggregate", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.aggregate", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.sort": {"fullname": "sqlglot.executor.python.PythonExecutor.sort", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.sort", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.set_operation": {"fullname": "sqlglot.executor.python.PythonExecutor.set_operation", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.Python": {"fullname": "sqlglot.executor.python.Python", "modulename": "sqlglot.executor.python", "qualname": "Python", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.executor.python.Python.Tokenizer": {"fullname": "sqlglot.executor.python.Python.Tokenizer", "modulename": "sqlglot.executor.python", "qualname": "Python.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.executor.python.Python.Generator": {"fullname": "sqlglot.executor.python.Python.Generator", "modulename": "sqlglot.executor.python", "qualname": "Python.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.executor.table": {"fullname": "sqlglot.executor.table", "modulename": "sqlglot.executor.table", "kind": "module", "doc": "

\n"}, "sqlglot.executor.table.Table": {"fullname": "sqlglot.executor.table.Table", "modulename": "sqlglot.executor.table", "qualname": "Table", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.Table.__init__": {"fullname": "sqlglot.executor.table.Table.__init__", "modulename": "sqlglot.executor.table", "qualname": "Table.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, rows=None, column_range=None)"}, "sqlglot.executor.table.Table.add_columns": {"fullname": "sqlglot.executor.table.Table.add_columns", "modulename": "sqlglot.executor.table", "qualname": "Table.add_columns", "kind": "function", "doc": "

\n", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.table.Table.append": {"fullname": "sqlglot.executor.table.Table.append", "modulename": "sqlglot.executor.table", "qualname": "Table.append", "kind": "function", "doc": "

\n", "signature": "(self, row):", "funcdef": "def"}, "sqlglot.executor.table.Table.pop": {"fullname": "sqlglot.executor.table.Table.pop", "modulename": "sqlglot.executor.table", "qualname": "Table.pop", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.table.TableIter": {"fullname": "sqlglot.executor.table.TableIter", "modulename": "sqlglot.executor.table", "qualname": "TableIter", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.TableIter.__init__": {"fullname": "sqlglot.executor.table.TableIter.__init__", "modulename": "sqlglot.executor.table", "qualname": "TableIter.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RangeReader": {"fullname": "sqlglot.executor.table.RangeReader", "modulename": "sqlglot.executor.table", "qualname": "RangeReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RangeReader.__init__": {"fullname": "sqlglot.executor.table.RangeReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RangeReader.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RowReader": {"fullname": "sqlglot.executor.table.RowReader", "modulename": "sqlglot.executor.table", "qualname": "RowReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RowReader.__init__": {"fullname": "sqlglot.executor.table.RowReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RowReader.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, column_range=None)"}, "sqlglot.executor.table.Tables": {"fullname": "sqlglot.executor.table.Tables", "modulename": "sqlglot.executor.table", "qualname": "Tables", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "sqlglot.schema.AbstractMappingSchema[sqlglot.executor.table.Table]"}, "sqlglot.executor.table.ensure_tables": {"fullname": "sqlglot.executor.table.ensure_tables", "modulename": "sqlglot.executor.table", "qualname": "ensure_tables", "kind": "function", "doc": "

\n", "signature": "(d: Optional[Dict]) -> sqlglot.executor.table.Tables:", "funcdef": "def"}, "sqlglot.expressions": {"fullname": "sqlglot.expressions", "modulename": "sqlglot.expressions", "kind": "module", "doc": "

Expressions

\n\n

Every AST node in SQLGlot is represented by a subclass of Expression.

\n\n

This module contains the implementation of all supported Expression types. Additionally,\nit exposes a number of helper functions, which are mainly used to programmatically build\nSQL expressions, such as sqlglot.expressions.select.

\n\n
\n"}, "sqlglot.expressions.Expression": {"fullname": "sqlglot.expressions.Expression", "modulename": "sqlglot.expressions", "qualname": "Expression", "kind": "class", "doc": "

The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary\ncontext, such as its child expressions, their names (arg keys), and whether a given child expression\nis optional or not.

\n\n
Attributes:
\n\n
    \n
  • key: a unique key for each class in the Expression hierarchy. This is useful for hashing\nand representing expressions as strings.
  • \n
  • arg_types: determines what arguments (child nodes) are supported by an expression. It\nmaps arg keys to booleans that indicate whether the corresponding args are optional.
  • \n
\n\n
Example:
\n\n
\n
\n
>>> class Foo(Expression):\n...     arg_types = {"this": True, "expression": False}\n
\n
\n \n

The above definition informs us that Foo is an Expression that requires an argument called\n \"this\" and may also optionally receive an argument called \"expression\".

\n
\n\n
Arguments:
\n\n
    \n
  • args: a mapping used for retrieving the arguments of an expression, given their arg keys.
  • \n
  • parent: a reference to the parent expression (or None, in case of root expressions).
  • \n
  • arg_key: the arg key an expression is associated with, i.e. the name its parent expression\nuses to refer to it.
  • \n
  • comments: a list of comments that are associated with a given expression. This is used in\norder to preserve comments when transpiling SQL code.
  • \n
  • _type: the sqlglot.expressions.DataType type of an expression. This is inferred by the\noptimizer, in order to enable some transformations that require type information.
  • \n
\n"}, "sqlglot.expressions.Expression.__init__": {"fullname": "sqlglot.expressions.Expression.__init__", "modulename": "sqlglot.expressions", "qualname": "Expression.__init__", "kind": "function", "doc": "

\n", "signature": "(**args: Any)"}, "sqlglot.expressions.Expression.this": {"fullname": "sqlglot.expressions.Expression.this", "modulename": "sqlglot.expressions", "qualname": "Expression.this", "kind": "variable", "doc": "

Retrieves the argument with key \"this\".

\n"}, "sqlglot.expressions.Expression.expression": {"fullname": "sqlglot.expressions.Expression.expression", "modulename": "sqlglot.expressions", "qualname": "Expression.expression", "kind": "variable", "doc": "

Retrieves the argument with key \"expression\".

\n"}, "sqlglot.expressions.Expression.expressions": {"fullname": "sqlglot.expressions.Expression.expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.expressions", "kind": "variable", "doc": "

Retrieves the argument with key \"expressions\".

\n"}, "sqlglot.expressions.Expression.text": {"fullname": "sqlglot.expressions.Expression.text", "modulename": "sqlglot.expressions", "qualname": "Expression.text", "kind": "function", "doc": "

Returns a textual representation of the argument corresponding to \"key\". This can only be used\nfor args that are strings or leaf Expression instances, such as identifiers and literals.

\n", "signature": "(self, key) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.is_string": {"fullname": "sqlglot.expressions.Expression.is_string", "modulename": "sqlglot.expressions", "qualname": "Expression.is_string", "kind": "variable", "doc": "

Checks whether a Literal expression is a string.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_number": {"fullname": "sqlglot.expressions.Expression.is_number", "modulename": "sqlglot.expressions", "qualname": "Expression.is_number", "kind": "variable", "doc": "

Checks whether a Literal expression is a number.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_int": {"fullname": "sqlglot.expressions.Expression.is_int", "modulename": "sqlglot.expressions", "qualname": "Expression.is_int", "kind": "variable", "doc": "

Checks whether a Literal expression is an integer.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_star": {"fullname": "sqlglot.expressions.Expression.is_star", "modulename": "sqlglot.expressions", "qualname": "Expression.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.alias": {"fullname": "sqlglot.expressions.Expression.alias", "modulename": "sqlglot.expressions", "qualname": "Expression.alias", "kind": "variable", "doc": "

Returns the alias of the expression, or an empty string if it's not aliased.

\n", "annotation": ": str"}, "sqlglot.expressions.Expression.output_name": {"fullname": "sqlglot.expressions.Expression.output_name", "modulename": "sqlglot.expressions", "qualname": "Expression.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Expression.copy": {"fullname": "sqlglot.expressions.Expression.copy", "modulename": "sqlglot.expressions", "qualname": "Expression.copy", "kind": "function", "doc": "

Returns a deep copy of the expression.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.append": {"fullname": "sqlglot.expressions.Expression.append", "modulename": "sqlglot.expressions", "qualname": "Expression.append", "kind": "function", "doc": "

Appends value to arg_key if it's a list or sets it as a new list.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the list expression arg
  • \n
  • value (Any): value to append to the list
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.set": {"fullname": "sqlglot.expressions.Expression.set", "modulename": "sqlglot.expressions", "qualname": "Expression.set", "kind": "function", "doc": "

Sets arg_key to value.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the expression arg.
  • \n
  • value: value to set the arg to.
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.depth": {"fullname": "sqlglot.expressions.Expression.depth", "modulename": "sqlglot.expressions", "qualname": "Expression.depth", "kind": "variable", "doc": "

Returns the depth of this tree.

\n"}, "sqlglot.expressions.Expression.iter_expressions": {"fullname": "sqlglot.expressions.Expression.iter_expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.iter_expressions", "kind": "function", "doc": "

Yields the key and expression for all arguments, exploding list args.

\n", "signature": "(self) -> Iterator[Tuple[str, sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find": {"fullname": "sqlglot.expressions.Expression.find", "modulename": "sqlglot.expressions", "qualname": "Expression.find", "kind": "function", "doc": "

Returns the first node in this tree which matches at least one of\nthe specified types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The node which matches the criteria or None if no such node was found.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_all": {"fullname": "sqlglot.expressions.Expression.find_all", "modulename": "sqlglot.expressions", "qualname": "Expression.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree and only\nyields those that match at least one of the specified expression types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Iterator[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_ancestor": {"fullname": "sqlglot.expressions.Expression.find_ancestor", "modulename": "sqlglot.expressions", "qualname": "Expression.find_ancestor", "kind": "function", "doc": "

Returns a nearest parent matching expression_types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The parent node.

\n
\n", "signature": "(self, *expression_types: Type[~E]) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.parent_select": {"fullname": "sqlglot.expressions.Expression.parent_select", "modulename": "sqlglot.expressions", "qualname": "Expression.parent_select", "kind": "variable", "doc": "

Returns the parent select statement.

\n"}, "sqlglot.expressions.Expression.same_parent": {"fullname": "sqlglot.expressions.Expression.same_parent", "modulename": "sqlglot.expressions", "qualname": "Expression.same_parent", "kind": "variable", "doc": "

Returns if the parent is the same class as itself.

\n"}, "sqlglot.expressions.Expression.root": {"fullname": "sqlglot.expressions.Expression.root", "modulename": "sqlglot.expressions", "qualname": "Expression.root", "kind": "function", "doc": "

Returns the root expression of this tree.

\n", "signature": "(self) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.Expression.walk": {"fullname": "sqlglot.expressions.Expression.walk", "modulename": "sqlglot.expressions", "qualname": "Expression.walk", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree.

\n\n
Arguments:
\n\n
    \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
  • prune ((node, parent, arg_key) -> bool): callable that returns True if\nthe generator should stop traversing this branch of the tree.
  • \n
\n\n
Returns:
\n\n
\n

the generator object.

\n
\n", "signature": "(self, bfs=True, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.dfs": {"fullname": "sqlglot.expressions.Expression.dfs", "modulename": "sqlglot.expressions", "qualname": "Expression.dfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe DFS (Depth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, parent=None, key=None, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.bfs": {"fullname": "sqlglot.expressions.Expression.bfs", "modulename": "sqlglot.expressions", "qualname": "Expression.bfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe BFS (Breadth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest": {"fullname": "sqlglot.expressions.Expression.unnest", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest", "kind": "function", "doc": "

Returns the first non parenthesis child or self.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unalias": {"fullname": "sqlglot.expressions.Expression.unalias", "modulename": "sqlglot.expressions", "qualname": "Expression.unalias", "kind": "function", "doc": "

Returns the inner expression if this is an Alias.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest_operands": {"fullname": "sqlglot.expressions.Expression.unnest_operands", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest_operands", "kind": "function", "doc": "

Returns unnested operands as a tuple.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.flatten": {"fullname": "sqlglot.expressions.Expression.flatten", "modulename": "sqlglot.expressions", "qualname": "Expression.flatten", "kind": "function", "doc": "

Returns a generator which yields child nodes who's parents are the same class.

\n\n

A AND B AND C -> [A, B, C]

\n", "signature": "(self, unnest=True):", "funcdef": "def"}, "sqlglot.expressions.Expression.sql": {"fullname": "sqlglot.expressions.Expression.sql", "modulename": "sqlglot.expressions", "qualname": "Expression.sql", "kind": "function", "doc": "

Returns SQL string representation of this tree.

\n\n
Arguments:
\n\n
    \n
  • dialect: the dialect of the output SQL string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The SQL string.

\n
\n", "signature": "(\tself,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.transform": {"fullname": "sqlglot.expressions.Expression.transform", "modulename": "sqlglot.expressions", "qualname": "Expression.transform", "kind": "function", "doc": "

Recursively visits all tree nodes (excluding already transformed ones)\nand applies the given transformation function to each node.

\n\n
Arguments:
\n\n
    \n
  • fun (function): a function which takes a node as an argument and returns a\nnew transformed node or the same node without modifications. If the function\nreturns None, then the corresponding node will be removed from the syntax tree.
  • \n
  • copy (bool): if set to True a new tree instance is constructed, otherwise the tree is\nmodified in place.
  • \n
\n\n
Returns:
\n\n
\n

The transformed tree.

\n
\n", "signature": "(self, fun, *args, copy=True, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.Expression.replace": {"fullname": "sqlglot.expressions.Expression.replace", "modulename": "sqlglot.expressions", "qualname": "Expression.replace", "kind": "function", "doc": "

Swap out this expression with a new expression.

\n\n

For example::

\n\n
>>> tree = Select().select(\"x\").from_(\"tbl\")\n>>> tree.find(Column).replace(Column(this=\"y\"))\n(COLUMN this: y)\n>>> tree.sql()\n'SELECT y FROM tbl'\n
\n\n
Arguments:
\n\n
    \n
  • expression (Expression|None): new node
  • \n
\n\n
Returns:
\n\n
\n

The new expression or expressions.

\n
\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.expressions.Expression.pop": {"fullname": "sqlglot.expressions.Expression.pop", "modulename": "sqlglot.expressions", "qualname": "Expression.pop", "kind": "function", "doc": "

Remove this expression from its AST.

\n\n
Returns:
\n\n
\n

The popped expression.

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.assert_is": {"fullname": "sqlglot.expressions.Expression.assert_is", "modulename": "sqlglot.expressions", "qualname": "Expression.assert_is", "kind": "function", "doc": "

Assert that this Expression is an instance of type_.

\n\n

If it is NOT an instance of type_, this raises an assertion error.\nOtherwise, this returns this expression.

\n\n
Examples:
\n\n
\n

This is useful for type security in chained expressions:

\n \n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()\n'SELECT x, z FROM y'\n
\n
\n
\n", "signature": "(self, type_):", "funcdef": "def"}, "sqlglot.expressions.Expression.error_messages": {"fullname": "sqlglot.expressions.Expression.error_messages", "modulename": "sqlglot.expressions", "qualname": "Expression.error_messages", "kind": "function", "doc": "

Checks if this expression is valid (e.g. all mandatory args are set).

\n\n
Arguments:
\n\n
    \n
  • args: a sequence of values that were used to instantiate a Func expression. This is used\nto check that the provided arguments don't exceed the function argument limit.
  • \n
\n\n
Returns:
\n\n
\n

A list of error messages for all possible errors that were found.

\n
\n", "signature": "(self, args: Optional[Sequence] = None) -> List[str]:", "funcdef": "def"}, "sqlglot.expressions.Expression.dump": {"fullname": "sqlglot.expressions.Expression.dump", "modulename": "sqlglot.expressions", "qualname": "Expression.dump", "kind": "function", "doc": "

Dump this Expression to a JSON-serializable dict.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.load": {"fullname": "sqlglot.expressions.Expression.load", "modulename": "sqlglot.expressions", "qualname": "Expression.load", "kind": "function", "doc": "

Load a dict (as returned by Expression.dump) into an Expression instance.

\n", "signature": "(cls, obj):", "funcdef": "def"}, "sqlglot.expressions.Condition": {"fullname": "sqlglot.expressions.Condition", "modulename": "sqlglot.expressions", "qualname": "Condition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Condition.and_": {"fullname": "sqlglot.expressions.Condition.and_", "modulename": "sqlglot.expressions", "qualname": "Condition.and_", "kind": "function", "doc": "

AND this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").and_("y=1").sql()\n'x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.or_": {"fullname": "sqlglot.expressions.Condition.or_", "modulename": "sqlglot.expressions", "qualname": "Condition.or_", "kind": "function", "doc": "

OR this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").or_("y=1").sql()\n'x = 1 OR y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.not_": {"fullname": "sqlglot.expressions.Condition.not_", "modulename": "sqlglot.expressions", "qualname": "Condition.not_", "kind": "function", "doc": "

Wrap this condition with NOT.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").not_().sql()\n'NOT x = 1'\n
\n
\n
\n\n
Returns:
\n\n
\n

Not: the new condition.

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Predicate": {"fullname": "sqlglot.expressions.Predicate", "modulename": "sqlglot.expressions", "qualname": "Predicate", "kind": "class", "doc": "

Relationships like x = y, x > 1, x >= y.

\n", "bases": "Condition"}, "sqlglot.expressions.DerivedTable": {"fullname": "sqlglot.expressions.DerivedTable", "modulename": "sqlglot.expressions", "qualname": "DerivedTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable": {"fullname": "sqlglot.expressions.Unionable", "modulename": "sqlglot.expressions", "qualname": "Unionable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable.union": {"fullname": "sqlglot.expressions.Unionable.union", "modulename": "sqlglot.expressions", "qualname": "Unionable.union", "kind": "function", "doc": "

Builds a UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the Union expression.

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.intersect": {"fullname": "sqlglot.expressions.Unionable.intersect", "modulename": "sqlglot.expressions", "qualname": "Unionable.intersect", "kind": "function", "doc": "

Builds an INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the Intersect expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.except_": {"fullname": "sqlglot.expressions.Unionable.except_", "modulename": "sqlglot.expressions", "qualname": "Unionable.except_", "kind": "function", "doc": "

Builds an EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the Except expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.UDTF": {"fullname": "sqlglot.expressions.UDTF", "modulename": "sqlglot.expressions", "qualname": "UDTF", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Cache": {"fullname": "sqlglot.expressions.Cache", "modulename": "sqlglot.expressions", "qualname": "Cache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Uncache": {"fullname": "sqlglot.expressions.Uncache", "modulename": "sqlglot.expressions", "qualname": "Uncache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Create": {"fullname": "sqlglot.expressions.Create", "modulename": "sqlglot.expressions", "qualname": "Create", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Describe": {"fullname": "sqlglot.expressions.Describe", "modulename": "sqlglot.expressions", "qualname": "Describe", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Pragma": {"fullname": "sqlglot.expressions.Pragma", "modulename": "sqlglot.expressions", "qualname": "Pragma", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Set": {"fullname": "sqlglot.expressions.Set", "modulename": "sqlglot.expressions", "qualname": "Set", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetItem": {"fullname": "sqlglot.expressions.SetItem", "modulename": "sqlglot.expressions", "qualname": "SetItem", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Show": {"fullname": "sqlglot.expressions.Show", "modulename": "sqlglot.expressions", "qualname": "Show", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.UserDefinedFunction": {"fullname": "sqlglot.expressions.UserDefinedFunction", "modulename": "sqlglot.expressions", "qualname": "UserDefinedFunction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CharacterSet": {"fullname": "sqlglot.expressions.CharacterSet", "modulename": "sqlglot.expressions", "qualname": "CharacterSet", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.With": {"fullname": "sqlglot.expressions.With", "modulename": "sqlglot.expressions", "qualname": "With", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WithinGroup": {"fullname": "sqlglot.expressions.WithinGroup", "modulename": "sqlglot.expressions", "qualname": "WithinGroup", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CTE": {"fullname": "sqlglot.expressions.CTE", "modulename": "sqlglot.expressions", "qualname": "CTE", "kind": "class", "doc": "

\n", "bases": "DerivedTable"}, "sqlglot.expressions.TableAlias": {"fullname": "sqlglot.expressions.TableAlias", "modulename": "sqlglot.expressions", "qualname": "TableAlias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitString": {"fullname": "sqlglot.expressions.BitString", "modulename": "sqlglot.expressions", "qualname": "BitString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.HexString": {"fullname": "sqlglot.expressions.HexString", "modulename": "sqlglot.expressions", "qualname": "HexString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.ByteString": {"fullname": "sqlglot.expressions.ByteString", "modulename": "sqlglot.expressions", "qualname": "ByteString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column": {"fullname": "sqlglot.expressions.Column", "modulename": "sqlglot.expressions", "qualname": "Column", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column.output_name": {"fullname": "sqlglot.expressions.Column.output_name", "modulename": "sqlglot.expressions", "qualname": "Column.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n", "annotation": ": str"}, "sqlglot.expressions.Column.parts": {"fullname": "sqlglot.expressions.Column.parts", "modulename": "sqlglot.expressions", "qualname": "Column.parts", "kind": "variable", "doc": "

Return the parts of a column in order catalog, db, table, name.

\n", "annotation": ": List[sqlglot.expressions.Identifier]"}, "sqlglot.expressions.Column.to_dot": {"fullname": "sqlglot.expressions.Column.to_dot", "modulename": "sqlglot.expressions", "qualname": "Column.to_dot", "kind": "function", "doc": "

Converts the column into a dot expression.

\n", "signature": "(self) -> sqlglot.expressions.Dot:", "funcdef": "def"}, "sqlglot.expressions.ColumnPosition": {"fullname": "sqlglot.expressions.ColumnPosition", "modulename": "sqlglot.expressions", "qualname": "ColumnPosition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnDef": {"fullname": "sqlglot.expressions.ColumnDef", "modulename": "sqlglot.expressions", "qualname": "ColumnDef", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterColumn": {"fullname": "sqlglot.expressions.AlterColumn", "modulename": "sqlglot.expressions", "qualname": "AlterColumn", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RenameTable": {"fullname": "sqlglot.expressions.RenameTable", "modulename": "sqlglot.expressions", "qualname": "RenameTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetTag": {"fullname": "sqlglot.expressions.SetTag", "modulename": "sqlglot.expressions", "qualname": "SetTag", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Comment": {"fullname": "sqlglot.expressions.Comment", "modulename": "sqlglot.expressions", "qualname": "Comment", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraint": {"fullname": "sqlglot.expressions.ColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraintKind": {"fullname": "sqlglot.expressions.ColumnConstraintKind", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraintKind", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AutoIncrementColumnConstraint": {"fullname": "sqlglot.expressions.AutoIncrementColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CaseSpecificColumnConstraint": {"fullname": "sqlglot.expressions.CaseSpecificColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CaseSpecificColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CharacterSetColumnConstraint": {"fullname": "sqlglot.expressions.CharacterSetColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CharacterSetColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CheckColumnConstraint": {"fullname": "sqlglot.expressions.CheckColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CheckColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CollateColumnConstraint": {"fullname": "sqlglot.expressions.CollateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CollateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CommentColumnConstraint": {"fullname": "sqlglot.expressions.CommentColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CommentColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CompressColumnConstraint": {"fullname": "sqlglot.expressions.CompressColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CompressColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DateFormatColumnConstraint": {"fullname": "sqlglot.expressions.DateFormatColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DateFormatColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DefaultColumnConstraint": {"fullname": "sqlglot.expressions.DefaultColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DefaultColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.EncodeColumnConstraint": {"fullname": "sqlglot.expressions.EncodeColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "EncodeColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.GeneratedAsIdentityColumnConstraint": {"fullname": "sqlglot.expressions.GeneratedAsIdentityColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "GeneratedAsIdentityColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.InlineLengthColumnConstraint": {"fullname": "sqlglot.expressions.InlineLengthColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "InlineLengthColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.NotNullColumnConstraint": {"fullname": "sqlglot.expressions.NotNullColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "NotNullColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.OnUpdateColumnConstraint": {"fullname": "sqlglot.expressions.OnUpdateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "OnUpdateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PrimaryKeyColumnConstraint": {"fullname": "sqlglot.expressions.PrimaryKeyColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PrimaryKeyColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.TitleColumnConstraint": {"fullname": "sqlglot.expressions.TitleColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "TitleColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UniqueColumnConstraint": {"fullname": "sqlglot.expressions.UniqueColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UniqueColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UppercaseColumnConstraint": {"fullname": "sqlglot.expressions.UppercaseColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UppercaseColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PathColumnConstraint": {"fullname": "sqlglot.expressions.PathColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PathColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.Constraint": {"fullname": "sqlglot.expressions.Constraint", "modulename": "sqlglot.expressions", "qualname": "Constraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete": {"fullname": "sqlglot.expressions.Delete", "modulename": "sqlglot.expressions", "qualname": "Delete", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete.delete": {"fullname": "sqlglot.expressions.Delete.delete", "modulename": "sqlglot.expressions", "qualname": "Delete.delete", "kind": "function", "doc": "

Create a DELETE expression or replace the table on an existing DELETE expression.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").sql()\n'DELETE FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table: the table from which to delete.
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\ttable: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.where": {"fullname": "sqlglot.expressions.Delete.where", "modulename": "sqlglot.expressions", "qualname": "Delete.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").where("x = 'a' OR x < 'b'").sql()\n"DELETE FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append: if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.returning": {"fullname": "sqlglot.expressions.Delete.returning", "modulename": "sqlglot.expressions", "qualname": "Delete.returning", "kind": "function", "doc": "

Set the RETURNING expression. Not supported by all dialects.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").returning("*", dialect="postgres").sql()\n'DELETE FROM tbl RETURNING *'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\texpression: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Drop": {"fullname": "sqlglot.expressions.Drop", "modulename": "sqlglot.expressions", "qualname": "Drop", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Filter": {"fullname": "sqlglot.expressions.Filter", "modulename": "sqlglot.expressions", "qualname": "Filter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Check": {"fullname": "sqlglot.expressions.Check", "modulename": "sqlglot.expressions", "qualname": "Check", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Directory": {"fullname": "sqlglot.expressions.Directory", "modulename": "sqlglot.expressions", "qualname": "Directory", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ForeignKey": {"fullname": "sqlglot.expressions.ForeignKey", "modulename": "sqlglot.expressions", "qualname": "ForeignKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.PrimaryKey": {"fullname": "sqlglot.expressions.PrimaryKey", "modulename": "sqlglot.expressions", "qualname": "PrimaryKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unique": {"fullname": "sqlglot.expressions.Unique", "modulename": "sqlglot.expressions", "qualname": "Unique", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Into": {"fullname": "sqlglot.expressions.Into", "modulename": "sqlglot.expressions", "qualname": "Into", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.From": {"fullname": "sqlglot.expressions.From", "modulename": "sqlglot.expressions", "qualname": "From", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Having": {"fullname": "sqlglot.expressions.Having", "modulename": "sqlglot.expressions", "qualname": "Having", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Hint": {"fullname": "sqlglot.expressions.Hint", "modulename": "sqlglot.expressions", "qualname": "Hint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JoinHint": {"fullname": "sqlglot.expressions.JoinHint", "modulename": "sqlglot.expressions", "qualname": "JoinHint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier": {"fullname": "sqlglot.expressions.Identifier", "modulename": "sqlglot.expressions", "qualname": "Identifier", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier.output_name": {"fullname": "sqlglot.expressions.Identifier.output_name", "modulename": "sqlglot.expressions", "qualname": "Identifier.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Index": {"fullname": "sqlglot.expressions.Index", "modulename": "sqlglot.expressions", "qualname": "Index", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Insert": {"fullname": "sqlglot.expressions.Insert", "modulename": "sqlglot.expressions", "qualname": "Insert", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.OnConflict": {"fullname": "sqlglot.expressions.OnConflict", "modulename": "sqlglot.expressions", "qualname": "OnConflict", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Returning": {"fullname": "sqlglot.expressions.Returning", "modulename": "sqlglot.expressions", "qualname": "Returning", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Introducer": {"fullname": "sqlglot.expressions.Introducer", "modulename": "sqlglot.expressions", "qualname": "Introducer", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.National": {"fullname": "sqlglot.expressions.National", "modulename": "sqlglot.expressions", "qualname": "National", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.LoadData": {"fullname": "sqlglot.expressions.LoadData", "modulename": "sqlglot.expressions", "qualname": "LoadData", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Partition": {"fullname": "sqlglot.expressions.Partition", "modulename": "sqlglot.expressions", "qualname": "Partition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Fetch": {"fullname": "sqlglot.expressions.Fetch", "modulename": "sqlglot.expressions", "qualname": "Fetch", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Group": {"fullname": "sqlglot.expressions.Group", "modulename": "sqlglot.expressions", "qualname": "Group", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lambda": {"fullname": "sqlglot.expressions.Lambda", "modulename": "sqlglot.expressions", "qualname": "Lambda", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Limit": {"fullname": "sqlglot.expressions.Limit", "modulename": "sqlglot.expressions", "qualname": "Limit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Literal": {"fullname": "sqlglot.expressions.Literal", "modulename": "sqlglot.expressions", "qualname": "Literal", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Literal.number": {"fullname": "sqlglot.expressions.Literal.number", "modulename": "sqlglot.expressions", "qualname": "Literal.number", "kind": "function", "doc": "

\n", "signature": "(cls, number) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.string": {"fullname": "sqlglot.expressions.Literal.string", "modulename": "sqlglot.expressions", "qualname": "Literal.string", "kind": "function", "doc": "

\n", "signature": "(cls, string) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.output_name": {"fullname": "sqlglot.expressions.Literal.output_name", "modulename": "sqlglot.expressions", "qualname": "Literal.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Join": {"fullname": "sqlglot.expressions.Join", "modulename": "sqlglot.expressions", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Join.on": {"fullname": "sqlglot.expressions.Join.on", "modulename": "sqlglot.expressions", "qualname": "Join.on", "kind": "function", "doc": "

Append to or set the ON expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()\n'JOIN x ON y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Join.using": {"fullname": "sqlglot.expressions.Join.using", "modulename": "sqlglot.expressions", "qualname": "Join.using", "kind": "function", "doc": "

Append to or set the USING expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()\n'JOIN x USING (foo, bla)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, concatenate the new expressions to the existing \"using\" list.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Lateral": {"fullname": "sqlglot.expressions.Lateral", "modulename": "sqlglot.expressions", "qualname": "Lateral", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.MatchRecognize": {"fullname": "sqlglot.expressions.MatchRecognize", "modulename": "sqlglot.expressions", "qualname": "MatchRecognize", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Final": {"fullname": "sqlglot.expressions.Final", "modulename": "sqlglot.expressions", "qualname": "Final", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Offset": {"fullname": "sqlglot.expressions.Offset", "modulename": "sqlglot.expressions", "qualname": "Offset", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Order": {"fullname": "sqlglot.expressions.Order", "modulename": "sqlglot.expressions", "qualname": "Order", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Cluster": {"fullname": "sqlglot.expressions.Cluster", "modulename": "sqlglot.expressions", "qualname": "Cluster", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Distribute": {"fullname": "sqlglot.expressions.Distribute", "modulename": "sqlglot.expressions", "qualname": "Distribute", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Sort": {"fullname": "sqlglot.expressions.Sort", "modulename": "sqlglot.expressions", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Ordered": {"fullname": "sqlglot.expressions.Ordered", "modulename": "sqlglot.expressions", "qualname": "Ordered", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Property": {"fullname": "sqlglot.expressions.Property", "modulename": "sqlglot.expressions", "qualname": "Property", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AfterJournalProperty": {"fullname": "sqlglot.expressions.AfterJournalProperty", "modulename": "sqlglot.expressions", "qualname": "AfterJournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AlgorithmProperty": {"fullname": "sqlglot.expressions.AlgorithmProperty", "modulename": "sqlglot.expressions", "qualname": "AlgorithmProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AutoIncrementProperty": {"fullname": "sqlglot.expressions.AutoIncrementProperty", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.BlockCompressionProperty": {"fullname": "sqlglot.expressions.BlockCompressionProperty", "modulename": "sqlglot.expressions", "qualname": "BlockCompressionProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CharacterSetProperty": {"fullname": "sqlglot.expressions.CharacterSetProperty", "modulename": "sqlglot.expressions", "qualname": "CharacterSetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ChecksumProperty": {"fullname": "sqlglot.expressions.ChecksumProperty", "modulename": "sqlglot.expressions", "qualname": "ChecksumProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CollateProperty": {"fullname": "sqlglot.expressions.CollateProperty", "modulename": "sqlglot.expressions", "qualname": "CollateProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DataBlocksizeProperty": {"fullname": "sqlglot.expressions.DataBlocksizeProperty", "modulename": "sqlglot.expressions", "qualname": "DataBlocksizeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DefinerProperty": {"fullname": "sqlglot.expressions.DefinerProperty", "modulename": "sqlglot.expressions", "qualname": "DefinerProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistKeyProperty": {"fullname": "sqlglot.expressions.DistKeyProperty", "modulename": "sqlglot.expressions", "qualname": "DistKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistStyleProperty": {"fullname": "sqlglot.expressions.DistStyleProperty", "modulename": "sqlglot.expressions", "qualname": "DistStyleProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.EngineProperty": {"fullname": "sqlglot.expressions.EngineProperty", "modulename": "sqlglot.expressions", "qualname": "EngineProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExecuteAsProperty": {"fullname": "sqlglot.expressions.ExecuteAsProperty", "modulename": "sqlglot.expressions", "qualname": "ExecuteAsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExternalProperty": {"fullname": "sqlglot.expressions.ExternalProperty", "modulename": "sqlglot.expressions", "qualname": "ExternalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FallbackProperty": {"fullname": "sqlglot.expressions.FallbackProperty", "modulename": "sqlglot.expressions", "qualname": "FallbackProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FileFormatProperty": {"fullname": "sqlglot.expressions.FileFormatProperty", "modulename": "sqlglot.expressions", "qualname": "FileFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FreespaceProperty": {"fullname": "sqlglot.expressions.FreespaceProperty", "modulename": "sqlglot.expressions", "qualname": "FreespaceProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.InputOutputFormat": {"fullname": "sqlglot.expressions.InputOutputFormat", "modulename": "sqlglot.expressions", "qualname": "InputOutputFormat", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.IsolatedLoadingProperty": {"fullname": "sqlglot.expressions.IsolatedLoadingProperty", "modulename": "sqlglot.expressions", "qualname": "IsolatedLoadingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.JournalProperty": {"fullname": "sqlglot.expressions.JournalProperty", "modulename": "sqlglot.expressions", "qualname": "JournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LanguageProperty": {"fullname": "sqlglot.expressions.LanguageProperty", "modulename": "sqlglot.expressions", "qualname": "LanguageProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LikeProperty": {"fullname": "sqlglot.expressions.LikeProperty", "modulename": "sqlglot.expressions", "qualname": "LikeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LocationProperty": {"fullname": "sqlglot.expressions.LocationProperty", "modulename": "sqlglot.expressions", "qualname": "LocationProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LockingProperty": {"fullname": "sqlglot.expressions.LockingProperty", "modulename": "sqlglot.expressions", "qualname": "LockingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LogProperty": {"fullname": "sqlglot.expressions.LogProperty", "modulename": "sqlglot.expressions", "qualname": "LogProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MaterializedProperty": {"fullname": "sqlglot.expressions.MaterializedProperty", "modulename": "sqlglot.expressions", "qualname": "MaterializedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MergeBlockRatioProperty": {"fullname": "sqlglot.expressions.MergeBlockRatioProperty", "modulename": "sqlglot.expressions", "qualname": "MergeBlockRatioProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.NoPrimaryIndexProperty": {"fullname": "sqlglot.expressions.NoPrimaryIndexProperty", "modulename": "sqlglot.expressions", "qualname": "NoPrimaryIndexProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.OnCommitProperty": {"fullname": "sqlglot.expressions.OnCommitProperty", "modulename": "sqlglot.expressions", "qualname": "OnCommitProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.PartitionedByProperty": {"fullname": "sqlglot.expressions.PartitionedByProperty", "modulename": "sqlglot.expressions", "qualname": "PartitionedByProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ReturnsProperty": {"fullname": "sqlglot.expressions.ReturnsProperty", "modulename": "sqlglot.expressions", "qualname": "ReturnsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatProperty": {"fullname": "sqlglot.expressions.RowFormatProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatDelimitedProperty": {"fullname": "sqlglot.expressions.RowFormatDelimitedProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatDelimitedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatSerdeProperty": {"fullname": "sqlglot.expressions.RowFormatSerdeProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatSerdeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SchemaCommentProperty": {"fullname": "sqlglot.expressions.SchemaCommentProperty", "modulename": "sqlglot.expressions", "qualname": "SchemaCommentProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SerdeProperties": {"fullname": "sqlglot.expressions.SerdeProperties", "modulename": "sqlglot.expressions", "qualname": "SerdeProperties", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SetProperty": {"fullname": "sqlglot.expressions.SetProperty", "modulename": "sqlglot.expressions", "qualname": "SetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SortKeyProperty": {"fullname": "sqlglot.expressions.SortKeyProperty", "modulename": "sqlglot.expressions", "qualname": "SortKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SqlSecurityProperty": {"fullname": "sqlglot.expressions.SqlSecurityProperty", "modulename": "sqlglot.expressions", "qualname": "SqlSecurityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.StabilityProperty": {"fullname": "sqlglot.expressions.StabilityProperty", "modulename": "sqlglot.expressions", "qualname": "StabilityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TableFormatProperty": {"fullname": "sqlglot.expressions.TableFormatProperty", "modulename": "sqlglot.expressions", "qualname": "TableFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TemporaryProperty": {"fullname": "sqlglot.expressions.TemporaryProperty", "modulename": "sqlglot.expressions", "qualname": "TemporaryProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TransientProperty": {"fullname": "sqlglot.expressions.TransientProperty", "modulename": "sqlglot.expressions", "qualname": "TransientProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.VolatileProperty": {"fullname": "sqlglot.expressions.VolatileProperty", "modulename": "sqlglot.expressions", "qualname": "VolatileProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithDataProperty": {"fullname": "sqlglot.expressions.WithDataProperty", "modulename": "sqlglot.expressions", "qualname": "WithDataProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithJournalTableProperty": {"fullname": "sqlglot.expressions.WithJournalTableProperty", "modulename": "sqlglot.expressions", "qualname": "WithJournalTableProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.Properties": {"fullname": "sqlglot.expressions.Properties", "modulename": "sqlglot.expressions", "qualname": "Properties", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Properties.Location": {"fullname": "sqlglot.expressions.Properties.Location", "modulename": "sqlglot.expressions", "qualname": "Properties.Location", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.Properties.Location.POST_CREATE": {"fullname": "sqlglot.expressions.Properties.Location.POST_CREATE", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_CREATE", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_CREATE: 'POST_CREATE'>"}, "sqlglot.expressions.Properties.Location.POST_NAME": {"fullname": "sqlglot.expressions.Properties.Location.POST_NAME", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_NAME", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_NAME: 'POST_NAME'>"}, "sqlglot.expressions.Properties.Location.POST_SCHEMA": {"fullname": "sqlglot.expressions.Properties.Location.POST_SCHEMA", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_SCHEMA: 'POST_SCHEMA'>"}, "sqlglot.expressions.Properties.Location.POST_WITH": {"fullname": "sqlglot.expressions.Properties.Location.POST_WITH", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_WITH", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_WITH: 'POST_WITH'>"}, "sqlglot.expressions.Properties.Location.POST_ALIAS": {"fullname": "sqlglot.expressions.Properties.Location.POST_ALIAS", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_ALIAS", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_ALIAS: 'POST_ALIAS'>"}, "sqlglot.expressions.Properties.Location.POST_EXPRESSION": {"fullname": "sqlglot.expressions.Properties.Location.POST_EXPRESSION", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_EXPRESSION", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_EXPRESSION: 'POST_EXPRESSION'>"}, "sqlglot.expressions.Properties.Location.POST_INDEX": {"fullname": "sqlglot.expressions.Properties.Location.POST_INDEX", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_INDEX", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_INDEX: 'POST_INDEX'>"}, "sqlglot.expressions.Properties.Location.UNSUPPORTED": {"fullname": "sqlglot.expressions.Properties.Location.UNSUPPORTED", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.UNSUPPORTED", "kind": "variable", "doc": "

\n", "default_value": "<Location.UNSUPPORTED: 'UNSUPPORTED'>"}, "sqlglot.expressions.Properties.from_dict": {"fullname": "sqlglot.expressions.Properties.from_dict", "modulename": "sqlglot.expressions", "qualname": "Properties.from_dict", "kind": "function", "doc": "

\n", "signature": "(cls, properties_dict) -> sqlglot.expressions.Properties:", "funcdef": "def"}, "sqlglot.expressions.Qualify": {"fullname": "sqlglot.expressions.Qualify", "modulename": "sqlglot.expressions", "qualname": "Qualify", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Return": {"fullname": "sqlglot.expressions.Return", "modulename": "sqlglot.expressions", "qualname": "Return", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Reference": {"fullname": "sqlglot.expressions.Reference", "modulename": "sqlglot.expressions", "qualname": "Reference", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tuple": {"fullname": "sqlglot.expressions.Tuple", "modulename": "sqlglot.expressions", "qualname": "Tuple", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Subqueryable": {"fullname": "sqlglot.expressions.Subqueryable", "modulename": "sqlglot.expressions", "qualname": "Subqueryable", "kind": "class", "doc": "

\n", "bases": "Unionable"}, "sqlglot.expressions.Subqueryable.subquery": {"fullname": "sqlglot.expressions.Subqueryable.subquery", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.subquery", "kind": "function", "doc": "

Convert this expression to an aliased expression that can be used as a Subquery.

\n\n
Example:
\n\n
\n
\n
>>> subquery = Select().select("x").from_("tbl").subquery()\n>>> Select().select("x").from_(subquery).sql()\n'SELECT x FROM (SELECT x FROM tbl)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Identifier): an optional alias for the subquery
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the subquery

\n
\n", "signature": "(self, alias=None, copy=True) -> sqlglot.expressions.Subquery:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.limit": {"fullname": "sqlglot.expressions.Subqueryable.limit", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.limit", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.with_": {"fullname": "sqlglot.expressions.Subqueryable.with_", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.with_", "kind": "function", "doc": "

Append to or set the common table expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()\n'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Expression): the SQL code string to parse as the table name.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • as_ (str | Expression): the SQL code string to parse as the table expression.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • recursive (bool): set the RECURSIVE part of the expression. Defaults to False.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\talias,\tas_,\trecursive=None,\tappend=True,\tdialect=None,\tcopy=True,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.Table": {"fullname": "sqlglot.expressions.Table", "modulename": "sqlglot.expressions", "qualname": "Table", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SystemTime": {"fullname": "sqlglot.expressions.SystemTime", "modulename": "sqlglot.expressions", "qualname": "SystemTime", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Union": {"fullname": "sqlglot.expressions.Union", "modulename": "sqlglot.expressions", "qualname": "Union", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Union.limit": {"fullname": "sqlglot.expressions.Union.limit", "modulename": "sqlglot.expressions", "qualname": "Union.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> select("1").union(select("1")).limit(1).sql()\n'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: The limited subqueryable.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Union.select": {"fullname": "sqlglot.expressions.Union.select", "modulename": "sqlglot.expressions", "qualname": "Union.select", "kind": "function", "doc": "

Append to or set the SELECT of the union recursively.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("select a from x union select a from y union select a from z").select("b").sql()\n'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Union:", "funcdef": "def"}, "sqlglot.expressions.Union.is_star": {"fullname": "sqlglot.expressions.Union.is_star", "modulename": "sqlglot.expressions", "qualname": "Union.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Except": {"fullname": "sqlglot.expressions.Except", "modulename": "sqlglot.expressions", "qualname": "Except", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Intersect": {"fullname": "sqlglot.expressions.Intersect", "modulename": "sqlglot.expressions", "qualname": "Intersect", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Unnest": {"fullname": "sqlglot.expressions.Unnest", "modulename": "sqlglot.expressions", "qualname": "Unnest", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Update": {"fullname": "sqlglot.expressions.Update", "modulename": "sqlglot.expressions", "qualname": "Update", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Values": {"fullname": "sqlglot.expressions.Values", "modulename": "sqlglot.expressions", "qualname": "Values", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Var": {"fullname": "sqlglot.expressions.Var", "modulename": "sqlglot.expressions", "qualname": "Var", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Schema": {"fullname": "sqlglot.expressions.Schema", "modulename": "sqlglot.expressions", "qualname": "Schema", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lock": {"fullname": "sqlglot.expressions.Lock", "modulename": "sqlglot.expressions", "qualname": "Lock", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Select": {"fullname": "sqlglot.expressions.Select", "modulename": "sqlglot.expressions", "qualname": "Select", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Select.from_": {"fullname": "sqlglot.expressions.Select.from_", "modulename": "sqlglot.expressions", "qualname": "Select.from_", "kind": "function", "doc": "

Set the FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sql()\n'SELECT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a From instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a From.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the From expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.group_by": {"fullname": "sqlglot.expressions.Select.group_by", "modulename": "sqlglot.expressions", "qualname": "Select.group_by", "kind": "function", "doc": "

Set the GROUP BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()\n'SELECT x, COUNT(1) FROM tbl GROUP BY x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Group.\nIf nothing is passed in then a group by is not applied to the expression
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Group expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.order_by": {"fullname": "sqlglot.expressions.Select.order_by", "modulename": "sqlglot.expressions", "qualname": "Select.order_by", "kind": "function", "doc": "

Set the ORDER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").order_by("x DESC").sql()\n'SELECT x FROM tbl ORDER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Order.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.sort_by": {"fullname": "sqlglot.expressions.Select.sort_by", "modulename": "sqlglot.expressions", "qualname": "Select.sort_by", "kind": "function", "doc": "

Set the SORT BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sort_by("x DESC").sql()\n'SELECT x FROM tbl SORT BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a SORT.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.cluster_by": {"fullname": "sqlglot.expressions.Select.cluster_by", "modulename": "sqlglot.expressions", "qualname": "Select.cluster_by", "kind": "function", "doc": "

Set the CLUSTER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()\n'SELECT x FROM tbl CLUSTER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Cluster.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.limit": {"fullname": "sqlglot.expressions.Select.limit", "modulename": "sqlglot.expressions", "qualname": "Select.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").limit(10).sql()\n'SELECT x FROM tbl LIMIT 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.offset": {"fullname": "sqlglot.expressions.Select.offset", "modulename": "sqlglot.expressions", "qualname": "Select.offset", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").offset(10).sql()\n'SELECT x FROM tbl OFFSET 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Offset instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Offset.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.select": {"fullname": "sqlglot.expressions.Select.select", "modulename": "sqlglot.expressions", "qualname": "Select.select", "kind": "function", "doc": "

Append to or set the SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "y").sql()\n'SELECT x, y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.lateral": {"fullname": "sqlglot.expressions.Select.lateral", "modulename": "sqlglot.expressions", "qualname": "Select.lateral", "kind": "function", "doc": "

Append to or set the LATERAL expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()\n'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.join": {"fullname": "sqlglot.expressions.Select.join", "modulename": "sqlglot.expressions", "qualname": "Select.join", "kind": "function", "doc": "

Append to or set the JOIN expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()\n'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n \n
\n
>>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()\n'SELECT 1 FROM a JOIN b USING (x, y, z)'\n
\n
\n \n

Use join_type to change the type of join:

\n \n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()\n'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • on (str | Expression): optionally specify the join \"on\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • using (str | Expression): optionally specify the join \"using\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • join_type (str): If set, alter the parsed join type
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\ton=None,\tusing=None,\tappend=True,\tjoin_type=None,\tjoin_alias=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.where": {"fullname": "sqlglot.expressions.Select.where", "modulename": "sqlglot.expressions", "qualname": "Select.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()\n"SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.having": {"fullname": "sqlglot.expressions.Select.having", "modulename": "sqlglot.expressions", "qualname": "Select.having", "kind": "function", "doc": "

Append to or set the HAVING expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()\n'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.window": {"fullname": "sqlglot.expressions.Select.window", "modulename": "sqlglot.expressions", "qualname": "Select.window", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.qualify": {"fullname": "sqlglot.expressions.Select.qualify", "modulename": "sqlglot.expressions", "qualname": "Select.qualify", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.distinct": {"fullname": "sqlglot.expressions.Select.distinct", "modulename": "sqlglot.expressions", "qualname": "Select.distinct", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").distinct().sql()\n'SELECT DISTINCT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • distinct (bool): whether the Select should be distinct
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(self, distinct=True, copy=True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.ctas": {"fullname": "sqlglot.expressions.Select.ctas", "modulename": "sqlglot.expressions", "qualname": "Select.ctas", "kind": "function", "doc": "

Convert this expression to a CREATE TABLE AS statement.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").ctas("x").sql()\n'CREATE TABLE x AS SELECT * FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): the SQL code string to parse as the table name.\nIf another Expression instance is passed, it will be used as-is.
  • \n
  • properties (dict): an optional mapping of table properties
  • \n
  • dialect (str): the dialect used to parse the input table.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input table.
  • \n
\n\n
Returns:
\n\n
\n

Create: the CREATE TABLE AS expression

\n
\n", "signature": "(\tself,\ttable,\tproperties=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Create:", "funcdef": "def"}, "sqlglot.expressions.Select.lock": {"fullname": "sqlglot.expressions.Select.lock", "modulename": "sqlglot.expressions", "qualname": "Select.lock", "kind": "function", "doc": "

Set the locking read mode for this expression.

\n\n
Examples:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"\n
\n
\n \n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR SHARE"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • update: if True, the locking type will be FOR UPDATE, else it will be FOR SHARE.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

The modified expression.

\n
\n", "signature": "(\tself,\tupdate: bool = True,\tcopy: bool = True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.is_star": {"fullname": "sqlglot.expressions.Select.is_star", "modulename": "sqlglot.expressions", "qualname": "Select.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery": {"fullname": "sqlglot.expressions.Subquery", "modulename": "sqlglot.expressions", "qualname": "Subquery", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Subquery.unnest": {"fullname": "sqlglot.expressions.Subquery.unnest", "modulename": "sqlglot.expressions", "qualname": "Subquery.unnest", "kind": "function", "doc": "

Returns the first non subquery.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Subquery.is_star": {"fullname": "sqlglot.expressions.Subquery.is_star", "modulename": "sqlglot.expressions", "qualname": "Subquery.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery.output_name": {"fullname": "sqlglot.expressions.Subquery.output_name", "modulename": "sqlglot.expressions", "qualname": "Subquery.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.TableSample": {"fullname": "sqlglot.expressions.TableSample", "modulename": "sqlglot.expressions", "qualname": "TableSample", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tag": {"fullname": "sqlglot.expressions.Tag", "modulename": "sqlglot.expressions", "qualname": "Tag", "kind": "class", "doc": "

Tags are used for generating arbitrary sql like SELECT x.

\n", "bases": "Expression"}, "sqlglot.expressions.Pivot": {"fullname": "sqlglot.expressions.Pivot", "modulename": "sqlglot.expressions", "qualname": "Pivot", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Window": {"fullname": "sqlglot.expressions.Window", "modulename": "sqlglot.expressions", "qualname": "Window", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WindowSpec": {"fullname": "sqlglot.expressions.WindowSpec", "modulename": "sqlglot.expressions", "qualname": "WindowSpec", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Where": {"fullname": "sqlglot.expressions.Where", "modulename": "sqlglot.expressions", "qualname": "Where", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star": {"fullname": "sqlglot.expressions.Star", "modulename": "sqlglot.expressions", "qualname": "Star", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star.output_name": {"fullname": "sqlglot.expressions.Star.output_name", "modulename": "sqlglot.expressions", "qualname": "Star.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Parameter": {"fullname": "sqlglot.expressions.Parameter", "modulename": "sqlglot.expressions", "qualname": "Parameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SessionParameter": {"fullname": "sqlglot.expressions.SessionParameter", "modulename": "sqlglot.expressions", "qualname": "SessionParameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Placeholder": {"fullname": "sqlglot.expressions.Placeholder", "modulename": "sqlglot.expressions", "qualname": "Placeholder", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Null": {"fullname": "sqlglot.expressions.Null", "modulename": "sqlglot.expressions", "qualname": "Null", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Boolean": {"fullname": "sqlglot.expressions.Boolean", "modulename": "sqlglot.expressions", "qualname": "Boolean", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.DataType": {"fullname": "sqlglot.expressions.DataType", "modulename": "sqlglot.expressions", "qualname": "DataType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DataType.Type": {"fullname": "sqlglot.expressions.DataType.Type", "modulename": "sqlglot.expressions", "qualname": "DataType.Type", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.DataType.Type.CHAR": {"fullname": "sqlglot.expressions.DataType.Type.CHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.CHAR: 'CHAR'>"}, "sqlglot.expressions.DataType.Type.NCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NCHAR: 'NCHAR'>"}, "sqlglot.expressions.DataType.Type.VARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.VARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARCHAR: 'VARCHAR'>"}, "sqlglot.expressions.DataType.Type.NVARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NVARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.expressions.DataType.Type.TEXT": {"fullname": "sqlglot.expressions.DataType.Type.TEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TEXT", "kind": "variable", "doc": "

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\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GT": {"fullname": "sqlglot.expressions.GT", "modulename": "sqlglot.expressions", "qualname": "GT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GTE": {"fullname": "sqlglot.expressions.GTE", "modulename": "sqlglot.expressions", "qualname": "GTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILike": {"fullname": "sqlglot.expressions.ILike", "modulename": "sqlglot.expressions", "qualname": "ILike", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILikeAny": {"fullname": "sqlglot.expressions.ILikeAny", "modulename": "sqlglot.expressions", "qualname": "ILikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.IntDiv": {"fullname": "sqlglot.expressions.IntDiv", "modulename": "sqlglot.expressions", "qualname": "IntDiv", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Is": {"fullname": "sqlglot.expressions.Is", "modulename": "sqlglot.expressions", "qualname": "Is", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Kwarg": {"fullname": "sqlglot.expressions.Kwarg", "modulename": "sqlglot.expressions", "qualname": "Kwarg", "kind": "class", "doc": "

Kwarg in special functions like func(kwarg => y).

\n", "bases": "Binary"}, "sqlglot.expressions.Like": {"fullname": "sqlglot.expressions.Like", "modulename": "sqlglot.expressions", "qualname": "Like", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LikeAny": {"fullname": "sqlglot.expressions.LikeAny", "modulename": "sqlglot.expressions", "qualname": "LikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LT": {"fullname": "sqlglot.expressions.LT", "modulename": "sqlglot.expressions", "qualname": "LT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LTE": {"fullname": "sqlglot.expressions.LTE", "modulename": "sqlglot.expressions", "qualname": "LTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Mod": {"fullname": "sqlglot.expressions.Mod", "modulename": "sqlglot.expressions", "qualname": "Mod", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Mul": {"fullname": "sqlglot.expressions.Mul", "modulename": "sqlglot.expressions", "qualname": "Mul", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.NEQ": {"fullname": "sqlglot.expressions.NEQ", "modulename": "sqlglot.expressions", "qualname": "NEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.SimilarTo": {"fullname": "sqlglot.expressions.SimilarTo", "modulename": "sqlglot.expressions", "qualname": "SimilarTo", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Slice": {"fullname": "sqlglot.expressions.Slice", "modulename": "sqlglot.expressions", "qualname": "Slice", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Sub": {"fullname": "sqlglot.expressions.Sub", "modulename": "sqlglot.expressions", "qualname": "Sub", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.ArrayOverlaps": {"fullname": "sqlglot.expressions.ArrayOverlaps", "modulename": "sqlglot.expressions", "qualname": "ArrayOverlaps", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Unary": {"fullname": "sqlglot.expressions.Unary", "modulename": "sqlglot.expressions", "qualname": "Unary", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitwiseNot": {"fullname": "sqlglot.expressions.BitwiseNot", "modulename": "sqlglot.expressions", "qualname": "BitwiseNot", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Not": {"fullname": "sqlglot.expressions.Not", "modulename": "sqlglot.expressions", "qualname": "Not", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Paren": {"fullname": "sqlglot.expressions.Paren", "modulename": "sqlglot.expressions", "qualname": "Paren", "kind": "class", "doc": "

\n", "bases": "Unary, Condition"}, "sqlglot.expressions.Neg": {"fullname": "sqlglot.expressions.Neg", "modulename": "sqlglot.expressions", "qualname": "Neg", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Alias": {"fullname": "sqlglot.expressions.Alias", "modulename": "sqlglot.expressions", "qualname": "Alias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Alias.output_name": {"fullname": "sqlglot.expressions.Alias.output_name", "modulename": "sqlglot.expressions", "qualname": "Alias.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Aliases": {"fullname": "sqlglot.expressions.Aliases", "modulename": "sqlglot.expressions", "qualname": "Aliases", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AtTimeZone": {"fullname": "sqlglot.expressions.AtTimeZone", "modulename": "sqlglot.expressions", "qualname": "AtTimeZone", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Between": {"fullname": "sqlglot.expressions.Between", "modulename": "sqlglot.expressions", "qualname": "Between", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.Bracket": {"fullname": "sqlglot.expressions.Bracket", "modulename": "sqlglot.expressions", "qualname": "Bracket", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Distinct": {"fullname": "sqlglot.expressions.Distinct", "modulename": "sqlglot.expressions", "qualname": "Distinct", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.In": {"fullname": "sqlglot.expressions.In", "modulename": "sqlglot.expressions", "qualname": "In", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.TimeUnit": {"fullname": "sqlglot.expressions.TimeUnit", "modulename": "sqlglot.expressions", "qualname": "TimeUnit", "kind": "class", "doc": "

Automatically converts unit arg into a var.

\n", "bases": "Expression"}, "sqlglot.expressions.TimeUnit.__init__": {"fullname": "sqlglot.expressions.TimeUnit.__init__", "modulename": "sqlglot.expressions", "qualname": "TimeUnit.__init__", "kind": "function", "doc": "

\n", "signature": "(**args)"}, "sqlglot.expressions.Interval": {"fullname": "sqlglot.expressions.Interval", "modulename": "sqlglot.expressions", "qualname": "Interval", "kind": "class", "doc": "

\n", "bases": "TimeUnit"}, "sqlglot.expressions.IgnoreNulls": {"fullname": "sqlglot.expressions.IgnoreNulls", "modulename": "sqlglot.expressions", "qualname": "IgnoreNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RespectNulls": {"fullname": "sqlglot.expressions.RespectNulls", "modulename": "sqlglot.expressions", "qualname": "RespectNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Func": {"fullname": "sqlglot.expressions.Func", "modulename": "sqlglot.expressions", "qualname": "Func", "kind": "class", "doc": "

The base class for all function expressions.

\n\n
Attributes:
\n\n
    \n
  • is_var_len_args (bool): if set to True the last argument defined in arg_types will be\ntreated as a variable length argument and the argument's value will be stored as a list.
  • \n
  • _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)\nfor this function expression. These values are used to map this node to a name during parsing\nas well as to provide the function's name during SQL string generation. By default the SQL\nname is set to the expression's class name transformed to snake case.
  • \n
\n", "bases": "Condition"}, "sqlglot.expressions.Func.from_arg_list": {"fullname": "sqlglot.expressions.Func.from_arg_list", "modulename": "sqlglot.expressions", "qualname": "Func.from_arg_list", "kind": "function", "doc": "

\n", "signature": "(cls, args):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_names": {"fullname": "sqlglot.expressions.Func.sql_names", "modulename": "sqlglot.expressions", "qualname": "Func.sql_names", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_name": {"fullname": "sqlglot.expressions.Func.sql_name", "modulename": "sqlglot.expressions", "qualname": "Func.sql_name", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.default_parser_mappings": {"fullname": "sqlglot.expressions.Func.default_parser_mappings", "modulename": "sqlglot.expressions", "qualname": "Func.default_parser_mappings", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.AggFunc": {"fullname": "sqlglot.expressions.AggFunc", "modulename": "sqlglot.expressions", "qualname": "AggFunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Abs": {"fullname": "sqlglot.expressions.Abs", "modulename": "sqlglot.expressions", "qualname": "Abs", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Anonymous": {"fullname": "sqlglot.expressions.Anonymous", "modulename": "sqlglot.expressions", "qualname": "Anonymous", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Hll": {"fullname": "sqlglot.expressions.Hll", "modulename": "sqlglot.expressions", "qualname": "Hll", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxDistinct": {"fullname": "sqlglot.expressions.ApproxDistinct", "modulename": "sqlglot.expressions", "qualname": "ApproxDistinct", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Array": {"fullname": "sqlglot.expressions.Array", "modulename": "sqlglot.expressions", "qualname": "Array", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ToChar": {"fullname": "sqlglot.expressions.ToChar", "modulename": "sqlglot.expressions", "qualname": "ToChar", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GenerateSeries": {"fullname": "sqlglot.expressions.GenerateSeries", "modulename": "sqlglot.expressions", "qualname": "GenerateSeries", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAgg": {"fullname": "sqlglot.expressions.ArrayAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ArrayAll": {"fullname": "sqlglot.expressions.ArrayAll", "modulename": "sqlglot.expressions", "qualname": "ArrayAll", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAny": {"fullname": "sqlglot.expressions.ArrayAny", "modulename": "sqlglot.expressions", "qualname": "ArrayAny", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayConcat": {"fullname": "sqlglot.expressions.ArrayConcat", "modulename": "sqlglot.expressions", "qualname": "ArrayConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayContains": {"fullname": "sqlglot.expressions.ArrayContains", "modulename": "sqlglot.expressions", "qualname": "ArrayContains", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.ArrayContained": {"fullname": "sqlglot.expressions.ArrayContained", "modulename": "sqlglot.expressions", "qualname": "ArrayContained", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.ArrayFilter": {"fullname": "sqlglot.expressions.ArrayFilter", "modulename": "sqlglot.expressions", "qualname": "ArrayFilter", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayJoin": {"fullname": "sqlglot.expressions.ArrayJoin", "modulename": "sqlglot.expressions", "qualname": "ArrayJoin", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySize": {"fullname": "sqlglot.expressions.ArraySize", "modulename": "sqlglot.expressions", "qualname": "ArraySize", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySort": {"fullname": "sqlglot.expressions.ArraySort", "modulename": "sqlglot.expressions", "qualname": "ArraySort", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySum": {"fullname": "sqlglot.expressions.ArraySum", "modulename": "sqlglot.expressions", "qualname": "ArraySum", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayUnionAgg": {"fullname": "sqlglot.expressions.ArrayUnionAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayUnionAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Avg": {"fullname": "sqlglot.expressions.Avg", "modulename": "sqlglot.expressions", "qualname": "Avg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.AnyValue": {"fullname": "sqlglot.expressions.AnyValue", "modulename": "sqlglot.expressions", "qualname": "AnyValue", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Case": {"fullname": "sqlglot.expressions.Case", "modulename": "sqlglot.expressions", "qualname": "Case", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast": {"fullname": "sqlglot.expressions.Cast", "modulename": "sqlglot.expressions", "qualname": "Cast", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast.output_name": {"fullname": "sqlglot.expressions.Cast.output_name", "modulename": "sqlglot.expressions", "qualname": "Cast.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Cast.is_type": {"fullname": "sqlglot.expressions.Cast.is_type", "modulename": "sqlglot.expressions", "qualname": "Cast.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.Collate": {"fullname": "sqlglot.expressions.Collate", "modulename": "sqlglot.expressions", "qualname": "Collate", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.TryCast": {"fullname": "sqlglot.expressions.TryCast", "modulename": "sqlglot.expressions", "qualname": "TryCast", "kind": "class", "doc": "

\n", "bases": "Cast"}, "sqlglot.expressions.Ceil": {"fullname": "sqlglot.expressions.Ceil", "modulename": "sqlglot.expressions", "qualname": "Ceil", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Coalesce": {"fullname": "sqlglot.expressions.Coalesce", "modulename": "sqlglot.expressions", "qualname": "Coalesce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Concat": {"fullname": "sqlglot.expressions.Concat", "modulename": "sqlglot.expressions", "qualname": "Concat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ConcatWs": {"fullname": "sqlglot.expressions.ConcatWs", "modulename": "sqlglot.expressions", "qualname": "ConcatWs", "kind": "class", "doc": "

\n", "bases": "Concat"}, "sqlglot.expressions.Count": {"fullname": "sqlglot.expressions.Count", "modulename": "sqlglot.expressions", "qualname": "Count", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CountIf": {"fullname": "sqlglot.expressions.CountIf", "modulename": "sqlglot.expressions", "qualname": "CountIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CurrentDate": {"fullname": "sqlglot.expressions.CurrentDate", "modulename": "sqlglot.expressions", "qualname": "CurrentDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentDatetime": {"fullname": "sqlglot.expressions.CurrentDatetime", "modulename": "sqlglot.expressions", "qualname": "CurrentDatetime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTime": {"fullname": "sqlglot.expressions.CurrentTime", "modulename": "sqlglot.expressions", "qualname": "CurrentTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTimestamp": {"fullname": "sqlglot.expressions.CurrentTimestamp", "modulename": "sqlglot.expressions", "qualname": "CurrentTimestamp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentUser": {"fullname": "sqlglot.expressions.CurrentUser", "modulename": "sqlglot.expressions", "qualname": "CurrentUser", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateAdd": {"fullname": "sqlglot.expressions.DateAdd", "modulename": "sqlglot.expressions", "qualname": "DateAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateSub": {"fullname": "sqlglot.expressions.DateSub", "modulename": "sqlglot.expressions", "qualname": "DateSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateDiff": {"fullname": "sqlglot.expressions.DateDiff", "modulename": "sqlglot.expressions", "qualname": "DateDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateTrunc": {"fullname": "sqlglot.expressions.DateTrunc", "modulename": "sqlglot.expressions", "qualname": "DateTrunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DatetimeAdd": {"fullname": "sqlglot.expressions.DatetimeAdd", "modulename": "sqlglot.expressions", "qualname": "DatetimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeSub": {"fullname": "sqlglot.expressions.DatetimeSub", "modulename": "sqlglot.expressions", "qualname": "DatetimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeDiff": {"fullname": "sqlglot.expressions.DatetimeDiff", "modulename": "sqlglot.expressions", "qualname": "DatetimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeTrunc": {"fullname": "sqlglot.expressions.DatetimeTrunc", "modulename": "sqlglot.expressions", "qualname": "DatetimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DayOfWeek": {"fullname": "sqlglot.expressions.DayOfWeek", "modulename": "sqlglot.expressions", "qualname": "DayOfWeek", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfMonth": {"fullname": "sqlglot.expressions.DayOfMonth", "modulename": "sqlglot.expressions", "qualname": "DayOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfYear": {"fullname": "sqlglot.expressions.DayOfYear", "modulename": "sqlglot.expressions", "qualname": "DayOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.WeekOfYear": {"fullname": "sqlglot.expressions.WeekOfYear", "modulename": "sqlglot.expressions", "qualname": "WeekOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LastDateOfMonth": {"fullname": "sqlglot.expressions.LastDateOfMonth", "modulename": "sqlglot.expressions", "qualname": "LastDateOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Extract": {"fullname": "sqlglot.expressions.Extract", "modulename": "sqlglot.expressions", "qualname": "Extract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimestampAdd": {"fullname": "sqlglot.expressions.TimestampAdd", "modulename": "sqlglot.expressions", "qualname": "TimestampAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampSub": {"fullname": "sqlglot.expressions.TimestampSub", "modulename": "sqlglot.expressions", "qualname": "TimestampSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampDiff": {"fullname": "sqlglot.expressions.TimestampDiff", "modulename": "sqlglot.expressions", "qualname": "TimestampDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampTrunc": {"fullname": "sqlglot.expressions.TimestampTrunc", "modulename": "sqlglot.expressions", "qualname": "TimestampTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeAdd": {"fullname": "sqlglot.expressions.TimeAdd", "modulename": "sqlglot.expressions", "qualname": "TimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeSub": {"fullname": "sqlglot.expressions.TimeSub", "modulename": "sqlglot.expressions", "qualname": "TimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeDiff": {"fullname": "sqlglot.expressions.TimeDiff", "modulename": "sqlglot.expressions", "qualname": "TimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeTrunc": {"fullname": "sqlglot.expressions.TimeTrunc", "modulename": "sqlglot.expressions", "qualname": "TimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateFromParts": {"fullname": "sqlglot.expressions.DateFromParts", "modulename": "sqlglot.expressions", "qualname": "DateFromParts", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateStrToDate": {"fullname": "sqlglot.expressions.DateStrToDate", "modulename": "sqlglot.expressions", "qualname": "DateStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDateStr": {"fullname": "sqlglot.expressions.DateToDateStr", "modulename": "sqlglot.expressions", "qualname": "DateToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDi": {"fullname": "sqlglot.expressions.DateToDi", "modulename": "sqlglot.expressions", "qualname": "DateToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Day": {"fullname": "sqlglot.expressions.Day", "modulename": "sqlglot.expressions", "qualname": "Day", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Decode": {"fullname": "sqlglot.expressions.Decode", "modulename": "sqlglot.expressions", "qualname": "Decode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DiToDate": {"fullname": "sqlglot.expressions.DiToDate", "modulename": "sqlglot.expressions", "qualname": "DiToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Encode": {"fullname": "sqlglot.expressions.Encode", "modulename": "sqlglot.expressions", "qualname": "Encode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Exp": {"fullname": "sqlglot.expressions.Exp", "modulename": "sqlglot.expressions", "qualname": "Exp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Explode": {"fullname": "sqlglot.expressions.Explode", "modulename": "sqlglot.expressions", "qualname": "Explode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ExponentialTimeDecayedAvg": {"fullname": "sqlglot.expressions.ExponentialTimeDecayedAvg", "modulename": "sqlglot.expressions", "qualname": "ExponentialTimeDecayedAvg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Floor": {"fullname": "sqlglot.expressions.Floor", "modulename": "sqlglot.expressions", "qualname": "Floor", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Greatest": {"fullname": "sqlglot.expressions.Greatest", "modulename": "sqlglot.expressions", "qualname": "Greatest", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupConcat": {"fullname": "sqlglot.expressions.GroupConcat", "modulename": "sqlglot.expressions", "qualname": "GroupConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupUniqArray": {"fullname": "sqlglot.expressions.GroupUniqArray", "modulename": "sqlglot.expressions", "qualname": "GroupUniqArray", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Hex": {"fullname": "sqlglot.expressions.Hex", "modulename": "sqlglot.expressions", "qualname": "Hex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Histogram": {"fullname": "sqlglot.expressions.Histogram", "modulename": "sqlglot.expressions", "qualname": "Histogram", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.If": {"fullname": "sqlglot.expressions.If", "modulename": "sqlglot.expressions", "qualname": "If", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.IfNull": {"fullname": "sqlglot.expressions.IfNull", "modulename": "sqlglot.expressions", "qualname": "IfNull", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Initcap": {"fullname": "sqlglot.expressions.Initcap", "modulename": "sqlglot.expressions", "qualname": "Initcap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONKeyValue": {"fullname": "sqlglot.expressions.JSONKeyValue", "modulename": "sqlglot.expressions", "qualname": "JSONKeyValue", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JSONObject": {"fullname": "sqlglot.expressions.JSONObject", "modulename": "sqlglot.expressions", "qualname": "JSONObject", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONBContains": {"fullname": "sqlglot.expressions.JSONBContains", "modulename": "sqlglot.expressions", "qualname": "JSONBContains", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.JSONExtract": {"fullname": "sqlglot.expressions.JSONExtract", "modulename": "sqlglot.expressions", "qualname": "JSONExtract", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.JSONExtractScalar": {"fullname": "sqlglot.expressions.JSONExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtract": {"fullname": "sqlglot.expressions.JSONBExtract", "modulename": "sqlglot.expressions", "qualname": "JSONBExtract", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtractScalar": {"fullname": "sqlglot.expressions.JSONBExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONBExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONFormat": {"fullname": "sqlglot.expressions.JSONFormat", "modulename": "sqlglot.expressions", "qualname": "JSONFormat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Least": {"fullname": "sqlglot.expressions.Least", "modulename": "sqlglot.expressions", "qualname": "Least", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Length": {"fullname": "sqlglot.expressions.Length", "modulename": "sqlglot.expressions", "qualname": "Length", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Levenshtein": {"fullname": "sqlglot.expressions.Levenshtein", "modulename": "sqlglot.expressions", "qualname": "Levenshtein", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Ln": {"fullname": "sqlglot.expressions.Ln", "modulename": "sqlglot.expressions", "qualname": "Ln", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log": {"fullname": "sqlglot.expressions.Log", "modulename": "sqlglot.expressions", "qualname": "Log", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log2": {"fullname": "sqlglot.expressions.Log2", "modulename": "sqlglot.expressions", "qualname": "Log2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log10": {"fullname": "sqlglot.expressions.Log10", "modulename": "sqlglot.expressions", "qualname": "Log10", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LogicalOr": {"fullname": "sqlglot.expressions.LogicalOr", "modulename": "sqlglot.expressions", "qualname": "LogicalOr", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.LogicalAnd": {"fullname": "sqlglot.expressions.LogicalAnd", "modulename": "sqlglot.expressions", "qualname": "LogicalAnd", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Lower": {"fullname": "sqlglot.expressions.Lower", "modulename": "sqlglot.expressions", "qualname": "Lower", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Map": {"fullname": "sqlglot.expressions.Map", "modulename": "sqlglot.expressions", "qualname": "Map", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StarMap": {"fullname": "sqlglot.expressions.StarMap", "modulename": "sqlglot.expressions", "qualname": "StarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.VarMap": {"fullname": "sqlglot.expressions.VarMap", "modulename": "sqlglot.expressions", "qualname": "VarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.MatchAgainst": {"fullname": "sqlglot.expressions.MatchAgainst", "modulename": "sqlglot.expressions", "qualname": "MatchAgainst", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Max": {"fullname": "sqlglot.expressions.Max", "modulename": "sqlglot.expressions", "qualname": "Max", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.MD5": {"fullname": "sqlglot.expressions.MD5", "modulename": "sqlglot.expressions", "qualname": "MD5", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Min": {"fullname": "sqlglot.expressions.Min", "modulename": "sqlglot.expressions", "qualname": "Min", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Month": {"fullname": "sqlglot.expressions.Month", "modulename": "sqlglot.expressions", "qualname": "Month", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Nvl2": {"fullname": "sqlglot.expressions.Nvl2", "modulename": "sqlglot.expressions", "qualname": "Nvl2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Posexplode": {"fullname": "sqlglot.expressions.Posexplode", "modulename": "sqlglot.expressions", "qualname": "Posexplode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Pow": {"fullname": "sqlglot.expressions.Pow", "modulename": "sqlglot.expressions", "qualname": "Pow", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.PercentileCont": {"fullname": "sqlglot.expressions.PercentileCont", "modulename": "sqlglot.expressions", "qualname": "PercentileCont", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.PercentileDisc": {"fullname": "sqlglot.expressions.PercentileDisc", "modulename": "sqlglot.expressions", "qualname": "PercentileDisc", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantile": {"fullname": "sqlglot.expressions.Quantile", "modulename": "sqlglot.expressions", "qualname": "Quantile", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantiles": {"fullname": "sqlglot.expressions.Quantiles", "modulename": "sqlglot.expressions", "qualname": "Quantiles", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.QuantileIf": {"fullname": "sqlglot.expressions.QuantileIf", "modulename": "sqlglot.expressions", "qualname": "QuantileIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxQuantile": {"fullname": "sqlglot.expressions.ApproxQuantile", "modulename": "sqlglot.expressions", "qualname": "ApproxQuantile", "kind": "class", "doc": "

\n", "bases": "Quantile"}, "sqlglot.expressions.RangeN": {"fullname": "sqlglot.expressions.RangeN", "modulename": "sqlglot.expressions", "qualname": "RangeN", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ReadCSV": {"fullname": "sqlglot.expressions.ReadCSV", "modulename": "sqlglot.expressions", "qualname": "ReadCSV", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Reduce": {"fullname": "sqlglot.expressions.Reduce", "modulename": "sqlglot.expressions", "qualname": "Reduce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpExtract": {"fullname": "sqlglot.expressions.RegexpExtract", "modulename": "sqlglot.expressions", "qualname": "RegexpExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpLike": {"fullname": "sqlglot.expressions.RegexpLike", "modulename": "sqlglot.expressions", "qualname": "RegexpLike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpILike": {"fullname": "sqlglot.expressions.RegexpILike", "modulename": "sqlglot.expressions", "qualname": "RegexpILike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpSplit": {"fullname": "sqlglot.expressions.RegexpSplit", "modulename": "sqlglot.expressions", "qualname": "RegexpSplit", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Repeat": {"fullname": "sqlglot.expressions.Repeat", "modulename": "sqlglot.expressions", "qualname": "Repeat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Round": {"fullname": "sqlglot.expressions.Round", "modulename": "sqlglot.expressions", "qualname": "Round", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RowNumber": {"fullname": "sqlglot.expressions.RowNumber", "modulename": "sqlglot.expressions", "qualname": "RowNumber", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SafeDivide": {"fullname": "sqlglot.expressions.SafeDivide", "modulename": "sqlglot.expressions", "qualname": "SafeDivide", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SetAgg": {"fullname": "sqlglot.expressions.SetAgg", "modulename": "sqlglot.expressions", "qualname": "SetAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.SHA": {"fullname": "sqlglot.expressions.SHA", "modulename": "sqlglot.expressions", "qualname": "SHA", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SHA2": {"fullname": "sqlglot.expressions.SHA2", "modulename": "sqlglot.expressions", "qualname": "SHA2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SortArray": {"fullname": "sqlglot.expressions.SortArray", "modulename": "sqlglot.expressions", "qualname": "SortArray", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Split": {"fullname": "sqlglot.expressions.Split", "modulename": "sqlglot.expressions", "qualname": "Split", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Substring": {"fullname": "sqlglot.expressions.Substring", "modulename": "sqlglot.expressions", "qualname": "Substring", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrPosition": {"fullname": "sqlglot.expressions.StrPosition", "modulename": "sqlglot.expressions", "qualname": "StrPosition", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToDate": {"fullname": "sqlglot.expressions.StrToDate", "modulename": "sqlglot.expressions", "qualname": "StrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToTime": {"fullname": "sqlglot.expressions.StrToTime", "modulename": "sqlglot.expressions", "qualname": "StrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToUnix": {"fullname": "sqlglot.expressions.StrToUnix", "modulename": "sqlglot.expressions", "qualname": "StrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.NumberToStr": {"fullname": "sqlglot.expressions.NumberToStr", "modulename": "sqlglot.expressions", "qualname": "NumberToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Struct": {"fullname": "sqlglot.expressions.Struct", "modulename": "sqlglot.expressions", "qualname": "Struct", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StructExtract": {"fullname": "sqlglot.expressions.StructExtract", "modulename": "sqlglot.expressions", "qualname": "StructExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Sum": {"fullname": "sqlglot.expressions.Sum", "modulename": "sqlglot.expressions", "qualname": "Sum", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Sqrt": {"fullname": "sqlglot.expressions.Sqrt", "modulename": "sqlglot.expressions", "qualname": "Sqrt", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Stddev": {"fullname": "sqlglot.expressions.Stddev", "modulename": "sqlglot.expressions", "qualname": "Stddev", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevPop": {"fullname": "sqlglot.expressions.StddevPop", "modulename": "sqlglot.expressions", "qualname": "StddevPop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevSamp": {"fullname": "sqlglot.expressions.StddevSamp", "modulename": "sqlglot.expressions", "qualname": "StddevSamp", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.TimeToStr": {"fullname": "sqlglot.expressions.TimeToStr", "modulename": "sqlglot.expressions", "qualname": "TimeToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToTimeStr": {"fullname": "sqlglot.expressions.TimeToTimeStr", "modulename": "sqlglot.expressions", "qualname": "TimeToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToUnix": {"fullname": "sqlglot.expressions.TimeToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToDate": {"fullname": "sqlglot.expressions.TimeStrToDate", "modulename": "sqlglot.expressions", "qualname": "TimeStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToTime": {"fullname": "sqlglot.expressions.TimeStrToTime", "modulename": "sqlglot.expressions", "qualname": "TimeStrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToUnix": {"fullname": "sqlglot.expressions.TimeStrToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeStrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Trim": {"fullname": "sqlglot.expressions.Trim", "modulename": "sqlglot.expressions", "qualname": "Trim", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsAdd": {"fullname": "sqlglot.expressions.TsOrDsAdd", "modulename": "sqlglot.expressions", "qualname": "TsOrDsAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TsOrDsToDateStr": {"fullname": "sqlglot.expressions.TsOrDsToDateStr", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsToDate": {"fullname": "sqlglot.expressions.TsOrDsToDate", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDiToDi": {"fullname": "sqlglot.expressions.TsOrDiToDi", "modulename": "sqlglot.expressions", "qualname": "TsOrDiToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Unhex": {"fullname": "sqlglot.expressions.Unhex", "modulename": "sqlglot.expressions", "qualname": "Unhex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToStr": {"fullname": "sqlglot.expressions.UnixToStr", "modulename": "sqlglot.expressions", "qualname": "UnixToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTime": {"fullname": "sqlglot.expressions.UnixToTime", "modulename": "sqlglot.expressions", "qualname": "UnixToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTimeStr": {"fullname": "sqlglot.expressions.UnixToTimeStr", "modulename": "sqlglot.expressions", "qualname": "UnixToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Upper": {"fullname": "sqlglot.expressions.Upper", "modulename": "sqlglot.expressions", "qualname": "Upper", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Variance": {"fullname": "sqlglot.expressions.Variance", "modulename": "sqlglot.expressions", "qualname": "Variance", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.VariancePop": {"fullname": "sqlglot.expressions.VariancePop", "modulename": "sqlglot.expressions", "qualname": "VariancePop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Week": {"fullname": "sqlglot.expressions.Week", "modulename": "sqlglot.expressions", "qualname": "Week", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.XMLTable": {"fullname": "sqlglot.expressions.XMLTable", "modulename": "sqlglot.expressions", "qualname": "XMLTable", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Year": {"fullname": "sqlglot.expressions.Year", "modulename": "sqlglot.expressions", "qualname": "Year", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Use": {"fullname": "sqlglot.expressions.Use", "modulename": "sqlglot.expressions", "qualname": "Use", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Merge": {"fullname": "sqlglot.expressions.Merge", "modulename": "sqlglot.expressions", "qualname": "Merge", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.When": {"fullname": "sqlglot.expressions.When", "modulename": "sqlglot.expressions", "qualname": "When", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.maybe_parse": {"fullname": "sqlglot.expressions.maybe_parse", "modulename": "sqlglot.expressions", "qualname": "maybe_parse", "kind": "function", "doc": "

Gracefully handle a possible string or expression.

\n\n
Example:
\n\n
\n
\n
>>> maybe_parse("1")\n(LITERAL this: 1, is_string: False)\n>>> maybe_parse(to_identifier("x"))\n(IDENTIFIER this: x, quoted: False)\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • sql_or_expression: the SQL code string or an expression
  • \n
  • into: the SQLGlot Expression to parse into
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • prefix: a string to prefix the sql with before it gets parsed\n(automatically includes a space)
  • \n
  • copy: whether or not to copy the expression.
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Expression: the parsed or given expression.

\n
\n", "signature": "(\tsql_or_expression: Union[str, sqlglot.expressions.Expression],\t*,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tprefix: Optional[str] = None,\tcopy: bool = False,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.union": {"fullname": "sqlglot.expressions.union", "modulename": "sqlglot.expressions", "qualname": "union", "kind": "function", "doc": "

Initializes a syntax tree from one UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the syntax tree for the UNION expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.intersect": {"fullname": "sqlglot.expressions.intersect", "modulename": "sqlglot.expressions", "qualname": "intersect", "kind": "function", "doc": "

Initializes a syntax tree from one INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the syntax tree for the INTERSECT expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.except_": {"fullname": "sqlglot.expressions.except_", "modulename": "sqlglot.expressions", "qualname": "except_", "kind": "function", "doc": "

Initializes a syntax tree from one EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the syntax tree for the EXCEPT statement.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.select": {"fullname": "sqlglot.expressions.select", "modulename": "sqlglot.expressions", "qualname": "select", "kind": "function", "doc": "

Initializes a syntax tree from one or multiple SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> select("col1", "col2").from_("tbl").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code string to parse as the expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(\t*expressions: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.from_": {"fullname": "sqlglot.expressions.from_", "modulename": "sqlglot.expressions", "qualname": "from_", "kind": "function", "doc": "

Initializes a syntax tree from a FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> from_("tbl").select("col1", "col2").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.update": {"fullname": "sqlglot.expressions.update", "modulename": "sqlglot.expressions", "qualname": "update", "kind": "function", "doc": "

Creates an update statement.

\n\n
Example:
\n\n
\n
\n
>>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()\n"UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *properties: dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • from_: sql statement parsed into a FROM statement
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Update: the syntax tree for the UPDATE statement.

\n
\n", "signature": "(\ttable: str | sqlglot.expressions.Table,\tproperties: dict,\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tfrom_: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Update:", "funcdef": "def"}, "sqlglot.expressions.delete": {"fullname": "sqlglot.expressions.delete", "modulename": "sqlglot.expressions", "qualname": "delete", "kind": "function", "doc": "

Builds a delete statement.

\n\n
Example:
\n\n
\n
\n
>>> delete("my_table", where="id > 1").sql()\n'DELETE FROM my_table WHERE id > 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • returning: sql conditional parsed into a RETURNING statement
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the syntax tree for the DELETE statement.

\n
\n", "signature": "(\ttable: Union[str, sqlglot.expressions.Expression],\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\treturning: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.condition": {"fullname": "sqlglot.expressions.condition", "modulename": "sqlglot.expressions", "qualname": "condition", "kind": "function", "doc": "

Initialize a logical condition expression.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").sql()\n'x = 1'\n
\n
\n \n

This is helpful for composing larger logical syntax trees:

\n \n
\n
>>> where = condition("x=1")\n>>> where = where.and_("y=1")\n>>> Select().from_("tbl").select("*").where(where).sql()\n'SELECT * FROM tbl WHERE x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Condition: the expression

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Condition:", "funcdef": "def"}, "sqlglot.expressions.and_": {"fullname": "sqlglot.expressions.and_", "modulename": "sqlglot.expressions", "qualname": "and_", "kind": "function", "doc": "

Combine multiple conditions with an AND logical operator.

\n\n
Example:
\n\n
\n
\n
>>> and_("x=1", and_("y=1", "z=1")).sql()\n'x = 1 AND (y = 1 AND z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.And:", "funcdef": "def"}, "sqlglot.expressions.or_": {"fullname": "sqlglot.expressions.or_", "modulename": "sqlglot.expressions", "qualname": "or_", "kind": "function", "doc": "

Combine multiple conditions with an OR logical operator.

\n\n
Example:
\n\n
\n
\n
>>> or_("x=1", or_("y=1", "z=1")).sql()\n'x = 1 OR (y = 1 OR z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Or:", "funcdef": "def"}, "sqlglot.expressions.not_": {"fullname": "sqlglot.expressions.not_", "modulename": "sqlglot.expressions", "qualname": "not_", "kind": "function", "doc": "

Wrap a condition with a NOT operator.

\n\n
Example:
\n\n
\n
\n
>>> not_("this_suit='black'").sql()\n"NOT this_suit = 'black'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Not: the new condition

\n
\n", "signature": "(expression, dialect=None, **opts) -> sqlglot.expressions.Not:", "funcdef": "def"}, "sqlglot.expressions.paren": {"fullname": "sqlglot.expressions.paren", "modulename": "sqlglot.expressions", "qualname": "paren", "kind": "function", "doc": "

\n", "signature": "(expression) -> sqlglot.expressions.Paren:", "funcdef": "def"}, "sqlglot.expressions.to_identifier": {"fullname": "sqlglot.expressions.to_identifier", "modulename": "sqlglot.expressions", "qualname": "to_identifier", "kind": "function", "doc": "

Builds an identifier.

\n\n
Arguments:
\n\n
    \n
  • name: The name to turn into an identifier.
  • \n
  • quoted: Whether or not force quote the identifier.
  • \n
\n\n
Returns:
\n\n
\n

The identifier ast node.

\n
\n", "signature": "(name, quoted=None):", "funcdef": "def"}, "sqlglot.expressions.to_interval": {"fullname": "sqlglot.expressions.to_interval", "modulename": "sqlglot.expressions", "qualname": "to_interval", "kind": "function", "doc": "

Builds an interval expression from a string like '1 day' or '5 months'.

\n", "signature": "(\tinterval: str | sqlglot.expressions.Literal) -> sqlglot.expressions.Interval:", "funcdef": "def"}, "sqlglot.expressions.to_table": {"fullname": "sqlglot.expressions.to_table", "modulename": "sqlglot.expressions", "qualname": "to_table", "kind": "function", "doc": "

Create a table expression from a [catalog].[schema].[table] sql path. Catalog and schema are optional.\nIf a table is passed in then that table is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: a [catalog].[schema].[table] string.
  • \n
\n\n
Returns:
\n\n
\n

A table expression.

\n
\n", "signature": "(\tsql_path: Union[str, sqlglot.expressions.Table, NoneType],\t**kwargs) -> Optional[sqlglot.expressions.Table]:", "funcdef": "def"}, "sqlglot.expressions.to_column": {"fullname": "sqlglot.expressions.to_column", "modulename": "sqlglot.expressions", "qualname": "to_column", "kind": "function", "doc": "

Create a column from a [table].[column] sql path. Schema is optional.

\n\n

If a column is passed in then that column is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: [table].[column] string
  • \n
\n\n
Returns:
\n\n
\n

Table: A column expression

\n
\n", "signature": "(\tsql_path: str | sqlglot.expressions.Column,\t**kwargs) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.alias_": {"fullname": "sqlglot.expressions.alias_", "modulename": "sqlglot.expressions", "qualname": "alias_", "kind": "function", "doc": "

Create an Alias expression.

\n\n
Example:
\n\n
\n
\n
>>> alias_('foo', 'bar').sql()\n'foo AS bar'\n
\n
\n \n
\n
>>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()\n'(SELECT 1, 2) AS bar(a, b)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias: the alias name to use. If the name has\nspecial characters it is quoted.
  • \n
  • table: Whether or not to create a table alias, can also be a list of columns.
  • \n
  • quoted: whether or not to quote the alias
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the aliased expression

\n
\n", "signature": "(\texpression: Union[str, sqlglot.expressions.Expression],\talias: str | sqlglot.expressions.Identifier,\ttable: Union[bool, Sequence[str | sqlglot.expressions.Identifier]] = False,\tquoted: Optional[bool] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.subquery": {"fullname": "sqlglot.expressions.subquery", "modulename": "sqlglot.expressions", "qualname": "subquery", "kind": "function", "doc": "

Build a subquery expression.

\n\n
Example:
\n\n
\n
\n
>>> subquery('select x from tbl', 'bar').select('x').sql()\n'SELECT x FROM (SELECT x FROM tbl) AS bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias (str | Expression): the alias name to use.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: a new select with the subquery expression included

\n
\n", "signature": "(expression, alias=None, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.column": {"fullname": "sqlglot.expressions.column", "modulename": "sqlglot.expressions", "qualname": "column", "kind": "function", "doc": "

Build a Column.

\n\n
Arguments:
\n\n
    \n
  • col: column name
  • \n
  • table: table name
  • \n
  • db: db name
  • \n
  • catalog: catalog name
  • \n
  • quoted: whether or not to force quote each part
  • \n
\n\n
Returns:
\n\n
\n

Column: column instance

\n
\n", "signature": "(\tcol: str | sqlglot.expressions.Identifier,\ttable: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tdb: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tcatalog: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tquoted: Optional[bool] = None) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.cast": {"fullname": "sqlglot.expressions.cast", "modulename": "sqlglot.expressions", "qualname": "cast", "kind": "function", "doc": "

Cast an expression to a data type.

\n\n
Example:
\n\n
\n
\n
>>> cast('x + 1', 'int').sql()\n'CAST(x + 1 AS INT)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to cast.
  • \n
  • to: The datatype to cast to.
  • \n
\n\n
Returns:
\n\n
\n

A cast node.

\n
\n", "signature": "(\texpression: Union[str, sqlglot.expressions.Expression],\tto: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\t**opts) -> sqlglot.expressions.Cast:", "funcdef": "def"}, "sqlglot.expressions.table_": {"fullname": "sqlglot.expressions.table_", "modulename": "sqlglot.expressions", "qualname": "table_", "kind": "function", "doc": "

Build a Table.

\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): column name
  • \n
  • db (str | Expression): db name
  • \n
  • catalog (str | Expression): catalog name
  • \n
\n\n
Returns:
\n\n
\n

Table: table instance

\n
\n", "signature": "(\ttable,\tdb=None,\tcatalog=None,\tquoted=None,\talias=None) -> sqlglot.expressions.Table:", "funcdef": "def"}, "sqlglot.expressions.values": {"fullname": "sqlglot.expressions.values", "modulename": "sqlglot.expressions", "qualname": "values", "kind": "function", "doc": "

Build VALUES statement.

\n\n
Example:
\n\n
\n
\n
>>> values([(1, '2')]).sql()\n"VALUES (1, '2')"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: values statements that will be converted to SQL
  • \n
  • alias: optional alias
  • \n
  • columns: Optional list of ordered column names or ordered dictionary of column names to types.\nIf either are provided then an alias is also required.\nIf a dictionary is provided then the first column of the values will be casted to the expected type\nin order to help with type inference.
  • \n
\n\n
Returns:
\n\n
\n

Values: the Values expression object

\n
\n", "signature": "(\tvalues: Iterable[Tuple[Any, ...]],\talias: Optional[str] = None,\tcolumns: Union[Iterable[str], Dict[str, sqlglot.expressions.DataType], NoneType] = None) -> sqlglot.expressions.Values:", "funcdef": "def"}, "sqlglot.expressions.var": {"fullname": "sqlglot.expressions.var", "modulename": "sqlglot.expressions", "qualname": "var", "kind": "function", "doc": "

Build a SQL variable.

\n\n
Example:
\n\n
\n
\n
>>> repr(var('x'))\n'(VAR this: x)'\n
\n
\n \n
\n
>>> repr(var(column('x', table='y')))\n'(VAR this: x)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: The name of the var or an expression who's name will become the var.
  • \n
\n\n
Returns:
\n\n
\n

The new variable node.

\n
\n", "signature": "(\tname: Union[str, sqlglot.expressions.Expression, NoneType]) -> sqlglot.expressions.Var:", "funcdef": "def"}, "sqlglot.expressions.rename_table": {"fullname": "sqlglot.expressions.rename_table", "modulename": "sqlglot.expressions", "qualname": "rename_table", "kind": "function", "doc": "

Build ALTER TABLE... RENAME... expression

\n\n
Arguments:
\n\n
    \n
  • old_name: The old name of the table
  • \n
  • new_name: The new name of the table
  • \n
\n\n
Returns:
\n\n
\n

Alter table expression

\n
\n", "signature": "(\told_name: str | sqlglot.expressions.Table,\tnew_name: str | sqlglot.expressions.Table) -> sqlglot.expressions.AlterTable:", "funcdef": "def"}, "sqlglot.expressions.convert": {"fullname": "sqlglot.expressions.convert", "modulename": "sqlglot.expressions", "qualname": "convert", "kind": "function", "doc": "

Convert a python value into an expression object.

\n\n

Raises an error if a conversion is not possible.

\n\n
Arguments:
\n\n
    \n
  • value (Any): a python object
  • \n
\n\n
Returns:
\n\n
\n

Expression: the equivalent expression object

\n
\n", "signature": "(value) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.replace_children": {"fullname": "sqlglot.expressions.replace_children", "modulename": "sqlglot.expressions", "qualname": "replace_children", "kind": "function", "doc": "

Replace children of an expression with the result of a lambda fun(child) -> exp.

\n", "signature": "(expression, fun, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.column_table_names": {"fullname": "sqlglot.expressions.column_table_names", "modulename": "sqlglot.expressions", "qualname": "column_table_names", "kind": "function", "doc": "

Return all table names referenced through columns in an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))\n['c', 'a']\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to find table names
  • \n
\n\n
Returns:
\n\n
\n

list: A list of unique names

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.expressions.table_name": {"fullname": "sqlglot.expressions.table_name", "modulename": "sqlglot.expressions", "qualname": "table_name", "kind": "function", "doc": "

Get the full name of a table as a string.

\n\n
Arguments:
\n\n
    \n
  • table (exp.Table | str): table expression node or string.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> table_name(parse_one("select * from a.b.c").find(exp.Table))\n'a.b.c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The table name.

\n
\n", "signature": "(table) -> str:", "funcdef": "def"}, "sqlglot.expressions.replace_tables": {"fullname": "sqlglot.expressions.replace_tables", "modulename": "sqlglot.expressions", "qualname": "replace_tables", "kind": "function", "doc": "

Replace all tables in expression according to the mapping.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • mapping (Dict[str, str]): mapping of table names.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()\n'SELECT * FROM c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, mapping):", "funcdef": "def"}, "sqlglot.expressions.replace_placeholders": {"fullname": "sqlglot.expressions.replace_placeholders", "modulename": "sqlglot.expressions", "qualname": "replace_placeholders", "kind": "function", "doc": "

Replace placeholders in an expression.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • args: positional names that will substitute unnamed placeholders in the given order.
  • \n
  • kwargs: keyword arguments that will substitute named placeholders.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_placeholders(\n...     parse_one("select * from :tbl where ? = ?"),\n...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")\n... ).sql()\n"SELECT * FROM foo WHERE str_col = 'b'"\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.expand": {"fullname": "sqlglot.expressions.expand", "modulename": "sqlglot.expressions", "qualname": "expand", "kind": "function", "doc": "

Transforms an expression by expanding all referenced sources into subqueries.

\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()\n'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'\n
\n
\n \n
\n
>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()\n'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to expand.
  • \n
  • sources: A dictionary of name to Subqueryables.
  • \n
  • copy: Whether or not to copy the expression during transformation. Defaults to True.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tsources: Dict[str, sqlglot.expressions.Subqueryable],\tcopy: bool = True) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.func": {"fullname": "sqlglot.expressions.func", "modulename": "sqlglot.expressions", "qualname": "func", "kind": "function", "doc": "

Returns a Func expression.

\n\n
Examples:
\n\n
\n
\n
>>> func("abs", 5).sql()\n'ABS(5)'\n
\n
\n \n
\n
>>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()\n'CAST(5 AS DOUBLE)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: the name of the function to build.
  • \n
  • args: the args used to instantiate the function of interest.
  • \n
  • dialect: the source dialect.
  • \n
  • kwargs: the kwargs used to instantiate the function of interest.
  • \n
\n\n
Note:
\n\n
\n

The arguments args and kwargs are mutually exclusive.

\n
\n\n
Returns:
\n\n
\n

An instance of the function of interest, or an anonymous function, if name doesn't\n correspond to an existing sqlglot.expressions.Func class.

\n
\n", "signature": "(\tname: str,\t*args,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.Func:", "funcdef": "def"}, "sqlglot.expressions.true": {"fullname": "sqlglot.expressions.true", "modulename": "sqlglot.expressions", "qualname": "true", "kind": "function", "doc": "

Returns a true Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.false": {"fullname": "sqlglot.expressions.false", "modulename": "sqlglot.expressions", "qualname": "false", "kind": "function", "doc": "

Returns a false Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.null": {"fullname": "sqlglot.expressions.null", "modulename": "sqlglot.expressions", "qualname": "null", "kind": "function", "doc": "

Returns a Null expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.generator": {"fullname": "sqlglot.generator", "modulename": "sqlglot.generator", "kind": "module", "doc": "

\n"}, "sqlglot.generator.Generator": {"fullname": "sqlglot.generator.Generator", "modulename": "sqlglot.generator", "qualname": "Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n"}, "sqlglot.generator.Generator.__init__": {"fullname": "sqlglot.generator.Generator.__init__", "modulename": "sqlglot.generator", "qualname": "Generator.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttime_mapping=None,\ttime_trie=None,\tpretty=None,\tquote_start=None,\tquote_end=None,\tidentifier_start=None,\tidentifier_end=None,\tidentify=False,\tnormalize=False,\tstring_escape=None,\tidentifier_escape=None,\tpad=2,\tindent=2,\tindex_offset=0,\tunnest_column_only=False,\talias_post_tablesample=False,\tnormalize_functions='upper',\tunsupported_level=<ErrorLevel.WARN: 'WARN'>,\tnull_ordering=None,\tmax_unsupported=3,\tleading_comma=False,\tmax_text_width=80,\tcomments=True)"}, "sqlglot.generator.Generator.generate": {"fullname": "sqlglot.generator.Generator.generate", "modulename": "sqlglot.generator", "qualname": "Generator.generate", "kind": "function", "doc": "

Generates a SQL string by interpreting the given syntax tree.

\n\n

Args\n expression: the syntax tree.\n cache: an optional sql string cache. this leverages the hash of an expression which is slow, so only use this if you set _hash on each node.

\n\n

Returns\n the SQL string.

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\tcache: Optional[Dict[int, str]] = None) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.unsupported": {"fullname": "sqlglot.generator.Generator.unsupported", "modulename": "sqlglot.generator", "qualname": "Generator.unsupported", "kind": "function", "doc": "

\n", "signature": "(self, message: str) -> None:", "funcdef": "def"}, "sqlglot.generator.Generator.sep": {"fullname": "sqlglot.generator.Generator.sep", "modulename": "sqlglot.generator", "qualname": "Generator.sep", "kind": "function", "doc": "

\n", "signature": "(self, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.seg": {"fullname": "sqlglot.generator.Generator.seg", "modulename": "sqlglot.generator", "qualname": "Generator.seg", "kind": "function", "doc": "

\n", "signature": "(self, sql: str, sep: str = ' ') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.pad_comment": {"fullname": "sqlglot.generator.Generator.pad_comment", "modulename": "sqlglot.generator", "qualname": "Generator.pad_comment", "kind": "function", "doc": "

\n", "signature": "(self, comment: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.maybe_comment": {"fullname": "sqlglot.generator.Generator.maybe_comment", "modulename": "sqlglot.generator", "qualname": "Generator.maybe_comment", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsql: str,\texpression: Optional[sqlglot.expressions.Expression] = None,\tcomments: Optional[List[str]] = None) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.wrap": {"fullname": "sqlglot.generator.Generator.wrap", "modulename": "sqlglot.generator", "qualname": "Generator.wrap", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression | str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.no_identify": {"fullname": "sqlglot.generator.Generator.no_identify", "modulename": "sqlglot.generator", "qualname": "Generator.no_identify", "kind": "function", "doc": "

\n", "signature": "(self, func: Callable[..., str], *args, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.normalize_func": {"fullname": "sqlglot.generator.Generator.normalize_func", "modulename": "sqlglot.generator", "qualname": "Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.indent": {"fullname": "sqlglot.generator.Generator.indent", "modulename": "sqlglot.generator", "qualname": "Generator.indent", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsql: str,\tlevel: int = 0,\tpad: Optional[int] = None,\tskip_first: bool = False,\tskip_last: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.sql": {"fullname": "sqlglot.generator.Generator.sql", "modulename": "sqlglot.generator", "qualname": "Generator.sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Union[str, sqlglot.expressions.Expression, NoneType],\tkey: Optional[str] = None,\tcomment: bool = True) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.uncache_sql": {"fullname": "sqlglot.generator.Generator.uncache_sql", "modulename": "sqlglot.generator", "qualname": "Generator.uncache_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Uncache) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cache_sql": {"fullname": "sqlglot.generator.Generator.cache_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cache_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cache) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.characterset_sql": {"fullname": "sqlglot.generator.Generator.characterset_sql", "modulename": "sqlglot.generator", "qualname": "Generator.characterset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CharacterSet) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.column_sql": {"fullname": "sqlglot.generator.Generator.column_sql", "modulename": "sqlglot.generator", "qualname": "Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columnposition_sql": {"fullname": "sqlglot.generator.Generator.columnposition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columnposition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnPosition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columndef_sql": {"fullname": "sqlglot.generator.Generator.columndef_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columndef_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnDef) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.columnconstraint_sql": {"fullname": "sqlglot.generator.Generator.columnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.columnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.autoincrementcolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.autoincrementcolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.compresscolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.compresscolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.compresscolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CompressColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.notnullcolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.notnullcolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.notnullcolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NotNullColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.primarykeycolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.primarykeycolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.primarykeycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PrimaryKeyColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.uniquecolumnconstraint_sql": {"fullname": "sqlglot.generator.Generator.uniquecolumnconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.uniquecolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, _) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.create_sql": {"fullname": "sqlglot.generator.Generator.create_sql", "modulename": "sqlglot.generator", "qualname": "Generator.create_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Create) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.describe_sql": {"fullname": "sqlglot.generator.Generator.describe_sql", "modulename": "sqlglot.generator", "qualname": "Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.prepend_ctes": {"fullname": "sqlglot.generator.Generator.prepend_ctes", "modulename": "sqlglot.generator", "qualname": "Generator.prepend_ctes", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, sql: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.with_sql": {"fullname": "sqlglot.generator.Generator.with_sql", "modulename": "sqlglot.generator", "qualname": "Generator.with_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.With) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.cte_sql": {"fullname": "sqlglot.generator.Generator.cte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tablealias_sql": {"fullname": "sqlglot.generator.Generator.tablealias_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tablealias_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TableAlias) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bitstring_sql": {"fullname": "sqlglot.generator.Generator.bitstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bitstring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.BitString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hexstring_sql": {"fullname": "sqlglot.generator.Generator.hexstring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hexstring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.HexString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.bytestring_sql": {"fullname": "sqlglot.generator.Generator.bytestring_sql", "modulename": "sqlglot.generator", "qualname": "Generator.bytestring_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ByteString) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.datatype_sql": {"fullname": "sqlglot.generator.Generator.datatype_sql", "modulename": "sqlglot.generator", "qualname": "Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.directory_sql": {"fullname": "sqlglot.generator.Generator.directory_sql", "modulename": "sqlglot.generator", "qualname": "Generator.directory_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Directory) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.delete_sql": {"fullname": "sqlglot.generator.Generator.delete_sql", "modulename": "sqlglot.generator", "qualname": "Generator.delete_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Delete) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.drop_sql": {"fullname": "sqlglot.generator.Generator.drop_sql", "modulename": "sqlglot.generator", "qualname": "Generator.drop_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Drop) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.except_sql": {"fullname": "sqlglot.generator.Generator.except_sql", "modulename": "sqlglot.generator", "qualname": "Generator.except_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.except_op": {"fullname": "sqlglot.generator.Generator.except_op", "modulename": "sqlglot.generator", "qualname": "Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.fetch_sql": {"fullname": "sqlglot.generator.Generator.fetch_sql", "modulename": "sqlglot.generator", "qualname": "Generator.fetch_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Fetch) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.filter_sql": {"fullname": "sqlglot.generator.Generator.filter_sql", "modulename": "sqlglot.generator", "qualname": "Generator.filter_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Filter) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.hint_sql": {"fullname": "sqlglot.generator.Generator.hint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.hint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Hint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.index_sql": {"fullname": "sqlglot.generator.Generator.index_sql", "modulename": "sqlglot.generator", "qualname": "Generator.index_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Index) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.identifier_sql": {"fullname": "sqlglot.generator.Generator.identifier_sql", "modulename": "sqlglot.generator", "qualname": "Generator.identifier_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Identifier) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.inputoutputformat_sql": {"fullname": "sqlglot.generator.Generator.inputoutputformat_sql", "modulename": "sqlglot.generator", "qualname": "Generator.inputoutputformat_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.InputOutputFormat) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.national_sql": {"fullname": "sqlglot.generator.Generator.national_sql", "modulename": "sqlglot.generator", "qualname": "Generator.national_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.National) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.partition_sql": {"fullname": "sqlglot.generator.Generator.partition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.partition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Partition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.properties_sql": {"fullname": "sqlglot.generator.Generator.properties_sql", "modulename": "sqlglot.generator", "qualname": "Generator.properties_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.root_properties": {"fullname": "sqlglot.generator.Generator.root_properties", "modulename": "sqlglot.generator", "qualname": "Generator.root_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.properties": {"fullname": "sqlglot.generator.Generator.properties", "modulename": "sqlglot.generator", "qualname": "Generator.properties", "kind": "function", "doc": "

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\n", "signature": "(self, args: Iterable) -> int:", "funcdef": "def"}, "sqlglot.generator.Generator.format_time": {"fullname": "sqlglot.generator.Generator.format_time", "modulename": "sqlglot.generator", "qualname": "Generator.format_time", "kind": "function", "doc": "

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\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression] = None,\tkey: Optional[str] = None,\tsqls: Optional[List[str]] = None,\tflat: bool = False,\tindent: bool = True,\tsep: str = ', ',\tprefix: str = '') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.op_expressions": {"fullname": "sqlglot.generator.Generator.op_expressions", "modulename": "sqlglot.generator", "qualname": "Generator.op_expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\top: str,\texpression: sqlglot.expressions.Expression,\tflat: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.naked_property": {"fullname": "sqlglot.generator.Generator.naked_property", "modulename": "sqlglot.generator", "qualname": "Generator.naked_property", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Property) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.set_operation": {"fullname": "sqlglot.generator.Generator.set_operation", "modulename": "sqlglot.generator", "qualname": "Generator.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tag_sql": {"fullname": "sqlglot.generator.Generator.tag_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Tag) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.token_sql": {"fullname": "sqlglot.generator.Generator.token_sql", "modulename": "sqlglot.generator", "qualname": "Generator.token_sql", "kind": "function", "doc": "

\n", "signature": "(self, token_type: sqlglot.tokens.TokenType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.userdefinedfunction_sql": {"fullname": "sqlglot.generator.Generator.userdefinedfunction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.userdefinedfunction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.UserDefinedFunction) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.joinhint_sql": {"fullname": "sqlglot.generator.Generator.joinhint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.joinhint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.JoinHint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.kwarg_sql": {"fullname": "sqlglot.generator.Generator.kwarg_sql", "modulename": "sqlglot.generator", "qualname": "Generator.kwarg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Kwarg) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.when_sql": {"fullname": "sqlglot.generator.Generator.when_sql", "modulename": "sqlglot.generator", "qualname": "Generator.when_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.When) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.merge_sql": {"fullname": "sqlglot.generator.Generator.merge_sql", "modulename": "sqlglot.generator", "qualname": "Generator.merge_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Merge) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tochar_sql": {"fullname": "sqlglot.generator.Generator.tochar_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tochar_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ToChar) -> str:", "funcdef": "def"}, "sqlglot.helper": {"fullname": "sqlglot.helper", "modulename": "sqlglot.helper", "kind": "module", "doc": "

\n"}, "sqlglot.helper.AutoName": {"fullname": "sqlglot.helper.AutoName", "modulename": "sqlglot.helper", "qualname": "AutoName", "kind": "class", "doc": "

This is used for creating enum classes where auto() is the string form of the corresponding value's name.

\n", "bases": "enum.Enum"}, "sqlglot.helper.seq_get": {"fullname": "sqlglot.helper.seq_get", "modulename": "sqlglot.helper", "qualname": "seq_get", "kind": "function", "doc": "

Returns the value in seq at position index, or None if index is out of bounds.

\n", "signature": "(seq: Sequence[~T], index: int) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.helper.ensure_list": {"fullname": "sqlglot.helper.ensure_list", "modulename": "sqlglot.helper", "qualname": "ensure_list", "kind": "function", "doc": "

Ensures that a value is a list, otherwise casts or wraps it into one.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value cast as a list if it's a list or a tuple, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.ensure_collection": {"fullname": "sqlglot.helper.ensure_collection", "modulename": "sqlglot.helper", "qualname": "ensure_collection", "kind": "function", "doc": "

Ensures that a value is a collection (excluding str and bytes), otherwise wraps it into a list.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value if it's a collection, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.csv": {"fullname": "sqlglot.helper.csv", "modulename": "sqlglot.helper", "qualname": "csv", "kind": "function", "doc": "

Formats any number of string arguments as CSV.

\n\n
Arguments:
\n\n
    \n
  • args: the string arguments to format.
  • \n
  • sep: the argument separator.
  • \n
\n\n
Returns:
\n\n
\n

The arguments formatted as a CSV string.

\n
\n", "signature": "(*args, sep: str = ', ') -> str:", "funcdef": "def"}, "sqlglot.helper.subclasses": {"fullname": "sqlglot.helper.subclasses", "modulename": "sqlglot.helper", "qualname": "subclasses", "kind": "function", "doc": "

Returns all subclasses for a collection of classes, possibly excluding some of them.

\n\n
Arguments:
\n\n
    \n
  • module_name: the name of the module to search for subclasses in.
  • \n
  • classes: class(es) we want to find the subclasses of.
  • \n
  • exclude: class(es) we want to exclude from the returned list.
  • \n
\n\n
Returns:
\n\n
\n

The target subclasses.

\n
\n", "signature": "(\tmodule_name: str,\tclasses: Union[Type, Tuple[Type, ...]],\texclude: Union[Type, Tuple[Type, ...]] = ()) -> List[Type]:", "funcdef": "def"}, "sqlglot.helper.apply_index_offset": {"fullname": "sqlglot.helper.apply_index_offset", "modulename": "sqlglot.helper", "qualname": "apply_index_offset", "kind": "function", "doc": "

Applies an offset to a given integer literal expression.

\n\n
Arguments:
\n\n
    \n
  • this: the target of the index
  • \n
  • expressions: the expression the offset will be applied to, wrapped in a list.
  • \n
  • offset: the offset that will be applied.
  • \n
\n\n
Returns:
\n\n
\n

The original expression with the offset applied to it, wrapped in a list. If the provided\n expressions argument contains more than one expressions, it's returned unaffected.

\n
\n", "signature": "(\tthis: sqlglot.expressions.Expression,\texpressions: List[Optional[~E]],\toffset: int) -> List[Optional[~E]]:", "funcdef": "def"}, "sqlglot.helper.camel_to_snake_case": {"fullname": "sqlglot.helper.camel_to_snake_case", "modulename": "sqlglot.helper", "qualname": "camel_to_snake_case", "kind": "function", "doc": "

Converts name from camelCase to snake_case and returns the result.

\n", "signature": "(name: str) -> str:", "funcdef": "def"}, "sqlglot.helper.while_changing": {"fullname": "sqlglot.helper.while_changing", "modulename": "sqlglot.helper", "qualname": "while_changing", "kind": "function", "doc": "

Applies a transformation to a given expression until a fix point is reached.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to be transformed.
  • \n
  • func: the transformation to be applied.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tfunc: Callable[[sqlglot.expressions.Expression], ~E]) -> ~E:", "funcdef": "def"}, "sqlglot.helper.tsort": {"fullname": "sqlglot.helper.tsort", "modulename": "sqlglot.helper", "qualname": "tsort", "kind": "function", "doc": "

Sorts a given directed acyclic graph in topological order.

\n\n
Arguments:
\n\n
    \n
  • dag: the graph to be sorted.
  • \n
\n\n
Returns:
\n\n
\n

A list that contains all of the graph's nodes in topological order.

\n
\n", "signature": "(dag: Dict[~T, List[~T]]) -> List[~T]:", "funcdef": "def"}, "sqlglot.helper.open_file": {"fullname": "sqlglot.helper.open_file", "modulename": "sqlglot.helper", "qualname": "open_file", "kind": "function", "doc": "

Open a file that may be compressed as gzip and return it in universal newline mode.

\n", "signature": "(file_name: str) -> <class 'TextIO'>:", "funcdef": "def"}, "sqlglot.helper.csv_reader": {"fullname": "sqlglot.helper.csv_reader", "modulename": "sqlglot.helper", "qualname": "csv_reader", "kind": "function", "doc": "

Returns a csv reader given the expression READ_CSV(name, ['delimiter', '|', ...]).

\n\n
Arguments:
\n\n
    \n
  • read_csv: a ReadCSV function call
  • \n
\n\n
Yields:
\n\n
\n

A python csv reader.

\n
\n", "signature": "(read_csv: sqlglot.expressions.ReadCSV) -> Any:", "funcdef": "def"}, "sqlglot.helper.find_new_name": {"fullname": "sqlglot.helper.find_new_name", "modulename": "sqlglot.helper", "qualname": "find_new_name", "kind": "function", "doc": "

Searches for a new name.

\n\n
Arguments:
\n\n
    \n
  • taken: a collection of taken names.
  • \n
  • base: base name to alter.
  • \n
\n\n
Returns:
\n\n
\n

The new, available name.

\n
\n", "signature": "(taken: Collection[str], base: str) -> str:", "funcdef": "def"}, "sqlglot.helper.object_to_dict": {"fullname": "sqlglot.helper.object_to_dict", "modulename": "sqlglot.helper", "qualname": "object_to_dict", "kind": "function", "doc": "

Returns a dictionary created from an object's attributes.

\n", "signature": "(obj: Any, **kwargs) -> Dict:", "funcdef": "def"}, "sqlglot.helper.split_num_words": {"fullname": "sqlglot.helper.split_num_words", "modulename": "sqlglot.helper", "qualname": "split_num_words", "kind": "function", "doc": "

Perform a split on a value and return N words as a result with None used for words that don't exist.

\n\n
Arguments:
\n\n
    \n
  • value: the value to be split.
  • \n
  • sep: the value to use to split on.
  • \n
  • min_num_words: the minimum number of words that are going to be in the result.
  • \n
  • fill_from_start: indicates that if None values should be inserted at the start or end of the list.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> split_num_words("db.table", ".", 3)\n[None, 'db', 'table']\n>>> split_num_words("db.table", ".", 3, fill_from_start=False)\n['db', 'table', None]\n>>> split_num_words("db.table", ".", 1)\n['db', 'table']\n
\n
\n
\n\n
Returns:
\n\n
\n

The list of words returned by split, possibly augmented by a number of None values.

\n
\n", "signature": "(\tvalue: str,\tsep: str,\tmin_num_words: int,\tfill_from_start: bool = True) -> List[Optional[str]]:", "funcdef": "def"}, "sqlglot.helper.is_iterable": {"fullname": "sqlglot.helper.is_iterable", "modulename": "sqlglot.helper", "qualname": "is_iterable", "kind": "function", "doc": "

Checks if the value is an iterable, excluding the types str and bytes.

\n\n
Examples:
\n\n
\n
\n
>>> is_iterable([1,2])\nTrue\n>>> is_iterable("test")\nFalse\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • value: the value to check if it is an iterable.
  • \n
\n\n
Returns:
\n\n
\n

A bool value indicating if it is an iterable.

\n
\n", "signature": "(value: Any) -> bool:", "funcdef": "def"}, "sqlglot.helper.flatten": {"fullname": "sqlglot.helper.flatten", "modulename": "sqlglot.helper", "qualname": "flatten", "kind": "function", "doc": "

Flattens an iterable that can contain both iterable and non-iterable elements. Objects of\ntype str and bytes are not regarded as iterables.

\n\n
Examples:
\n\n
\n
\n
>>> list(flatten([[1, 2], 3, {4}, (5, "bla")]))\n[1, 2, 3, 4, 5, 'bla']\n>>> list(flatten([1, 2, 3]))\n[1, 2, 3]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: the value to be flattened.
  • \n
\n\n
Yields:
\n\n
\n

Non-iterable elements in values.

\n
\n", "signature": "(values: Iterable[Union[Iterable[Any], Any]]) -> Iterator[Any]:", "funcdef": "def"}, "sqlglot.helper.count_params": {"fullname": "sqlglot.helper.count_params", "modulename": "sqlglot.helper", "qualname": "count_params", "kind": "function", "doc": "

Returns the number of formal parameters expected by a function, without counting \"self\"\nand \"cls\", in case of instance and class methods, respectively.

\n", "signature": "(function: Callable) -> int:", "funcdef": "def"}, "sqlglot.helper.dict_depth": {"fullname": "sqlglot.helper.dict_depth", "modulename": "sqlglot.helper", "qualname": "dict_depth", "kind": "function", "doc": "

Get the nesting depth of a dictionary.

\n\n
For example:
\n\n
\n
\n
>>> dict_depth(None)\n0\n>>> dict_depth({})\n1\n>>> dict_depth({"a": "b"})\n1\n>>> dict_depth({"a": {}})\n2\n>>> dict_depth({"a": {"b": {}}})\n3\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • d (dict): dictionary
  • \n
\n\n
Returns:
\n\n
\n

int: depth

\n
\n", "signature": "(d: Dict) -> int:", "funcdef": "def"}, "sqlglot.helper.first": {"fullname": "sqlglot.helper.first", "modulename": "sqlglot.helper", "qualname": "first", "kind": "function", "doc": "

Returns the first element from an iterable.

\n\n

Useful for sets.

\n", "signature": "(it: Iterable[~T]) -> ~T:", "funcdef": "def"}, "sqlglot.helper.should_identify": {"fullname": "sqlglot.helper.should_identify", "modulename": "sqlglot.helper", "qualname": "should_identify", "kind": "function", "doc": "

Checks if text should be identified given an identify option.

\n\n
Arguments:
\n\n
    \n
  • text: the text to check.
  • \n
  • identify: \"always\" | True - always returns true, \"safe\" - true if no upper case
  • \n
\n\n
Returns:
\n\n
\n

Whether or not a string should be identified.

\n
\n", "signature": "(text: str, identify: str | bool) -> bool:", "funcdef": "def"}, "sqlglot.lineage": {"fullname": "sqlglot.lineage", "modulename": "sqlglot.lineage", "kind": "module", "doc": "

\n"}, "sqlglot.lineage.Node": {"fullname": "sqlglot.lineage.Node", "modulename": "sqlglot.lineage", "qualname": "Node", "kind": "class", "doc": "

\n"}, "sqlglot.lineage.Node.__init__": {"fullname": "sqlglot.lineage.Node.__init__", "modulename": "sqlglot.lineage", "qualname": "Node.__init__", "kind": "function", "doc": "

\n", "signature": "(\tname: str,\texpression: sqlglot.expressions.Expression,\tsource: sqlglot.expressions.Expression,\tdownstream: List[sqlglot.lineage.Node] = <factory>,\talias: str = '')"}, "sqlglot.lineage.Node.walk": {"fullname": "sqlglot.lineage.Node.walk", "modulename": "sqlglot.lineage", "qualname": "Node.walk", "kind": "function", "doc": "

\n", "signature": "(self) -> Iterator[sqlglot.lineage.Node]:", "funcdef": "def"}, "sqlglot.lineage.Node.to_html": {"fullname": "sqlglot.lineage.Node.to_html", "modulename": "sqlglot.lineage", "qualname": "Node.to_html", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.lineage.LineageHTML:", "funcdef": "def"}, "sqlglot.lineage.lineage": {"fullname": "sqlglot.lineage.lineage", "modulename": "sqlglot.lineage", "qualname": "lineage", "kind": "function", "doc": "

Build the lineage graph for a column of a SQL query.

\n\n
Arguments:
\n\n
    \n
  • column: The column to build the lineage for.
  • \n
  • sql: The SQL string or expression.
  • \n
  • schema: The schema of tables.
  • \n
  • sources: A mapping of queries which will be used to continue building lineage.
  • \n
  • rules: Optimizer rules to apply, by default only qualifying tables and columns.
  • \n
  • dialect: The dialect of input SQL.
  • \n
\n\n
Returns:
\n\n
\n

A lineage node.

\n
\n", "signature": "(\tcolumn: str | sqlglot.expressions.Column,\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tsources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None,\trules: Sequence[Callable] = (<function qualify_tables at 0x7fac3cdc5630>, <function qualify_columns at 0x7fac3cdc4550>, <function expand_laterals at 0x7fac3cd8eb90>),\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node:", "funcdef": "def"}, "sqlglot.lineage.LineageHTML": {"fullname": "sqlglot.lineage.LineageHTML", "modulename": "sqlglot.lineage", "qualname": "LineageHTML", "kind": "class", "doc": "

Node to HTML generator using vis.js.

\n\n

https://visjs.github.io/vis-network/docs/network/

\n"}, "sqlglot.lineage.LineageHTML.__init__": {"fullname": "sqlglot.lineage.LineageHTML.__init__", "modulename": "sqlglot.lineage", "qualname": "LineageHTML.__init__", "kind": "function", "doc": "

\n", "signature": "(\tnode: sqlglot.lineage.Node,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\timports: bool = True,\t**opts: Any)"}, "sqlglot.optimizer": {"fullname": "sqlglot.optimizer", "modulename": "sqlglot.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "annotate_types", "kind": "function", "doc": "

Recursively infer & annotate types in an expression syntax tree against a schema.\nAssumes that we've already executed the optimizer's qualify_columns step.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"y": {"cola": "SMALLINT"}}\n>>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"\n>>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)\n>>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"\n<Type.DOUBLE: 'DOUBLE'>\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): Expression to annotate.
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema.
  • \n
  • annotators (dict): Maps expression type to corresponding annotation function.
  • \n
  • coerces_to (dict): Maps expression type to set of types that it can be coerced into.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression annotated with types

\n
\n", "signature": "(expression, schema=None, annotators=None, coerces_to=None):", "funcdef": "def"}, "sqlglot.optimizer.annotate_types.TypeAnnotator": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator", "kind": "class", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.__init__", "kind": "function", "doc": "

\n", "signature": "(schema=None, annotators=None, coerces_to=None)"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.annotate", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.optimizer.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.canonicalize.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "canonicalize", "kind": "function", "doc": "

Converts a sql expression into a standard form.

\n\n

This method relies on annotate_types because many of the\nconversions rely on type inference.

\n\n
Arguments:
\n\n
    \n
  • expression: The expression to canonicalize.
  • \n
  • identify: Whether or not to force identify identifier.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tidentify: str = 'safe') -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.add_text_to_concat": {"fullname": "sqlglot.optimizer.canonicalize.add_text_to_concat", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "add_text_to_concat", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.coerce_type": {"fullname": "sqlglot.optimizer.canonicalize.coerce_type", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "coerce_type", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.remove_redundant_casts": {"fullname": "sqlglot.optimizer.canonicalize.remove_redundant_casts", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "remove_redundant_casts", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.ensure_bool_predicates": {"fullname": "sqlglot.optimizer.canonicalize.ensure_bool_predicates", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "ensure_bool_predicates", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_ctes.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "qualname": "eliminate_ctes", "kind": "function", "doc": "

Remove unused CTEs from an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "WITH y AS (SELECT a FROM x) SELECT a FROM z"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_ctes(expression).sql()\n'SELECT a FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_joins.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "eliminate_joins", "kind": "function", "doc": "

Remove unused joins from an expression.

\n\n

This only removes joins when we know that the join condition doesn't produce duplicate rows.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a FROM x LEFT JOIN (SELECT DISTINCT y.b FROM y) AS y ON x.b = y.b"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_joins(expression).sql()\n'SELECT x.a FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins.join_condition": {"fullname": "sqlglot.optimizer.eliminate_joins.join_condition", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "join_condition", "kind": "function", "doc": "

Extract the join condition from a join expression.

\n\n
Arguments:
\n\n
    \n
  • join (exp.Join)
  • \n
\n\n
Returns:
\n\n
\n

tuple[list[str], list[str], exp.Expression]:\n Tuple of (source key, join key, remaining predicate)

\n
\n", "signature": "(join):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "qualname": "eliminate_subqueries", "kind": "function", "doc": "

Rewrite derived tables as CTES, deduplicating if possible.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y'\n
\n
\n
\n\n
This also deduplicates common subqueries:
\n\n
\n
\n
>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y JOIN (SELECT * FROM x) AS z")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y JOIN y AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_laterals.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "qualname": "expand_laterals", "kind": "function", "doc": "

Expand lateral column alias references.

\n\n

This assumes qualify_columns as already run.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a + 1 AS b, b + 1 AS c FROM x"\n>>> expression = sqlglot.parse_one(sql)\n>>> expand_laterals(expression).sql()\n'SELECT x.a + 1 AS b, x.a + 1 + 1 AS c FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

optimized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "qualname": "expand_multi_table_selects", "kind": "function", "doc": "

Replace multiple FROM expressions with JOINs.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand_multi_table_selects(parse_one("SELECT * FROM x, y")).sql()\n'SELECT * FROM x CROSS JOIN y'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.isolate_table_selects.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "qualname": "isolate_table_selects", "kind": "function", "doc": "

\n", "signature": "(expression, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.lower_identities.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "qualname": "lower_identities", "kind": "function", "doc": "

Convert all unquoted identifiers to lower case.

\n\n

Assuming the schema is all lower case, this essentially makes identifiers case-insensitive.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one('SELECT Bar.A AS A FROM "Foo".Bar')\n>>> lower_identities(expression).sql()\n'SELECT bar.a AS A FROM "Foo".bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to quote
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: quoted expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.merge_subqueries.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to merge derived tables into the outer query.

\n\n

This also merges CTEs if they are selected from only once.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT x.a FROM x) JOIN y")\n>>> merge_subqueries(expression).sql()\n'SELECT x.a FROM x JOIN y'\n
\n
\n
\n\n

If leave_tables_isolated is True, this will not merge inner queries into outer\nqueries if it would result in multiple table selects in a single query:

\n\n
\n
\n
\n

expression = sqlglot.parse_one(\"SELECT a FROM (SELECT x.a FROM x) JOIN y\")\n merge_subqueries(expression, leave_tables_isolated=True).sql()\n 'SELECT a FROM (SELECT x.a FROM x) JOIN y'

\n
\n
\n
\n\n

Inspired by https://dev.mysql.com/doc/refman/8.0/en/derived-table-optimization.html

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • leave_tables_isolated (bool):
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_ctes": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_ctes", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_ctes", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_derived_tables": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_derived_tables", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_derived_tables", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize": {"fullname": "sqlglot.optimizer.normalize", "modulename": "sqlglot.optimizer.normalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.normalize.normalize": {"fullname": "sqlglot.optimizer.normalize.normalize", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalize", "kind": "function", "doc": "

Rewrite sqlglot AST into conjunctive normal form or disjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression, dnf=False).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to normalize
  • \n
  • dnf: rewrite in disjunctive normal form instead.
  • \n
  • max_distance (int): the maximal estimated distance from cnf/dnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tdnf: bool = False,\tmax_distance: int = 128):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalized": {"fullname": "sqlglot.optimizer.normalize.normalized", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalized", "kind": "function", "doc": "

\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalization_distance": {"fullname": "sqlglot.optimizer.normalize.normalization_distance", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalization_distance", "kind": "function", "doc": "

The difference in the number of predicates between the current expression and the normalized form.

\n\n

This is used as an estimate of the cost of the conversion which is exponential in complexity.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(a AND b) OR (c AND d)")\n>>> normalization_distance(expression)\n4\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to compute distance
  • \n
  • dnf (bool): compute to dnf distance instead
  • \n
\n\n
Returns:
\n\n
\n

int: difference

\n
\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.distributive_law": {"fullname": "sqlglot.optimizer.normalize.distributive_law", "modulename": "sqlglot.optimizer.normalize", "qualname": "distributive_law", "kind": "function", "doc": "

x OR (y AND z) -> (x OR y) AND (x OR z)\n(x AND y) OR (y AND z) -> (x OR y) AND (x OR z) AND (y OR y) AND (y OR z)

\n", "signature": "(expression, dnf, max_distance, cache=None):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimize_joins.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "optimize_joins", "kind": "function", "doc": "

Removes cross joins if possible and reorder joins based on predicate dependencies.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> optimize_joins(parse_one("SELECT * FROM x CROSS JOIN y JOIN z ON x.a = z.a AND y.a = z.a")).sql()\n'SELECT * FROM x JOIN z ON x.a = z.a AND TRUE JOIN y ON y.a = z.a'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.reorder_joins": {"fullname": "sqlglot.optimizer.optimize_joins.reorder_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "reorder_joins", "kind": "function", "doc": "

Reorder joins by topological sort order based on predicate references.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.normalize": {"fullname": "sqlglot.optimizer.optimize_joins.normalize", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "normalize", "kind": "function", "doc": "

Remove INNER and OUTER from joins as they are optional.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.other_table_names": {"fullname": "sqlglot.optimizer.optimize_joins.other_table_names", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "other_table_names", "kind": "function", "doc": "

\n", "signature": "(join, exclude):", "funcdef": "def"}, "sqlglot.optimizer.optimizer": {"fullname": "sqlglot.optimizer.optimizer", "modulename": "sqlglot.optimizer.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimizer.optimize": {"fullname": "sqlglot.optimizer.optimizer.optimize", "modulename": "sqlglot.optimizer.optimizer", "qualname": "optimize", "kind": "function", "doc": "

Rewrite a sqlglot AST into an optimized form.

\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
  • schema: database schema.\nThis can either be an instance of sqlglot.optimizer.Schema or a mapping in one of\nthe following forms:\n 1. {table: {col: type}}\n 2. {db: {table: {col: type}}}\n 3. {catalog: {db: {table: {col: type}}}}\nIf no schema is provided then the default schema defined at sqlgot.schema will be used
  • \n
  • db: specify the default database, as might be set by a USE DATABASE db statement
  • \n
  • catalog: specify the default catalog, as might be set by a USE CATALOG c statement
  • \n
  • dialect: The dialect to parse the sql string.
  • \n
  • rules: sequence of optimizer rules to use.\nMany of the rules require tables and columns to be qualified.\nDo not remove qualify_tables or qualify_columns from the sequence of rules unless you know\nwhat you're doing!
  • \n
  • *kwargs: If a rule has a keyword argument with a same name in *kwargs, it will be passed in.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tschema: Union[dict, sqlglot.schema.Schema, NoneType] = None,\tdb: Optional[str] = None,\tcatalog: Optional[str] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\trules: Sequence[Callable] = (<function lower_identities at 0x7fac3cd8eef0>, <function qualify_tables at 0x7fac3cdc5630>, <function isolate_table_selects at 0x7fac3cd8edd0>, <function qualify_columns at 0x7fac3cdc4550>, <function expand_laterals at 0x7fac3cd8eb90>, <function pushdown_projections at 0x7fac3cdc5000>, <function validate_qualify_columns at 0x7fac3cdc45e0>, <function normalize at 0x7fac3cd8c9d0>, <function unnest_subqueries at 0x7fac3cdc5750>, <function expand_multi_table_selects at 0x7fac3cd8ed40>, <function pushdown_predicates at 0x7fac3cdc40d0>, <function optimize_joins at 0x7fac3cd8fc70>, <function eliminate_subqueries at 0x7fac3cd8e7a0>, <function merge_subqueries at 0x7fac3cd8f1c0>, <function eliminate_joins at 0x7fac3cd8c8b0>, <function eliminate_ctes at 0x7fac3cd8c790>, <function annotate_types at 0x7fac3cd5cdc0>, <function canonicalize at 0x7fac3cd8c1f0>, <function simplify at 0x7fac3cd8caf0>),\t**kwargs):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_predicates.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_predicates", "kind": "function", "doc": "

Rewrite sqlglot AST to pushdown predicates in FROMS and JOINS

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT * FROM (SELECT * FROM x AS x) AS y WHERE y.a = 1"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_predicates(expression).sql()\n'SELECT * FROM (SELECT * FROM x AS x WHERE y.a = 1) AS y WHERE TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown", "kind": "function", "doc": "

\n", "signature": "(condition, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_cnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_cnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_cnf", "kind": "function", "doc": "

If the predicates are in CNF like form, we can simply replace each block in the parent.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_dnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_dnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_dnf", "kind": "function", "doc": "

If the predicates are in DNF form, we can only push down conditions that are in all blocks.\nAdditionally, we can't remove predicates from their original form.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate": {"fullname": "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "nodes_for_predicate", "kind": "function", "doc": "

\n", "signature": "(predicate, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.replace_aliases": {"fullname": "sqlglot.optimizer.pushdown_predicates.replace_aliases", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "replace_aliases", "kind": "function", "doc": "

\n", "signature": "(source, predicate):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION": {"fullname": "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "DEFAULT_SELECTION", "kind": "function", "doc": "

\n", "signature": "():", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "pushdown_projections", "kind": "function", "doc": "

Rewrite sqlglot AST to remove unused columns projections.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_projections(expression).sql()\n'SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • remove_unused_selections (bool): remove selects that are unused
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, schema=None, remove_unused_selections=True):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_columns.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "qualify_columns", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified columns.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"tbl": {"col": "INT"}}\n>>> expression = sqlglot.parse_one("SELECT col FROM tbl")\n>>> qualify_columns(expression, schema).sql()\n'SELECT tbl.col AS col FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, schema):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.validate_qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.validate_qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "validate_qualify_columns", "kind": "function", "doc": "

Raise an OptimizeError if any columns aren't qualified

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver", "kind": "class", "doc": "

Helper for resolving columns.

\n\n

This is a class so we can lazily load some things and easily share them across functions.

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.__init__": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.__init__", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.__init__", "kind": "function", "doc": "

\n", "signature": "(scope, schema)"}, "sqlglot.optimizer.qualify_columns.Resolver.get_table": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_table", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_table", "kind": "function", "doc": "

Get the table for a column name.

\n\n
Arguments:
\n\n
    \n
  • column_name: The column name to find the table for.
  • \n
\n\n
Returns:
\n\n
\n

The table name if it can be found/inferred.

\n
\n", "signature": "(self, column_name: str) -> Optional[sqlglot.expressions.Identifier]:", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver.all_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.all_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.all_columns", "kind": "variable", "doc": "

All available columns of all sources in this scope

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_source_columns", "kind": "function", "doc": "

Resolve the source columns for a given source name

\n", "signature": "(self, name, only_visible=False):", "funcdef": "def"}, "sqlglot.optimizer.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_tables.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "qualname": "qualify_tables", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified tables.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT 1 FROM tbl")\n>>> qualify_tables(expression, db="db").sql()\n'SELECT 1 FROM db.tbl AS tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • db (str): Database name
  • \n
  • catalog (str): Catalog name
  • \n
  • schema: A schema to populate
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, db=None, catalog=None, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.scope": {"fullname": "sqlglot.optimizer.scope", "modulename": "sqlglot.optimizer.scope", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.scope.ScopeType": {"fullname": "sqlglot.optimizer.scope.ScopeType", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "enum.Enum"}, "sqlglot.optimizer.scope.ScopeType.ROOT": {"fullname": "sqlglot.optimizer.scope.ScopeType.ROOT", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.ROOT", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.ROOT: 1>"}, "sqlglot.optimizer.scope.ScopeType.SUBQUERY": {"fullname": "sqlglot.optimizer.scope.ScopeType.SUBQUERY", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.SUBQUERY", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.SUBQUERY: 2>"}, "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE": {"fullname": "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.DERIVED_TABLE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.DERIVED_TABLE: 3>"}, "sqlglot.optimizer.scope.ScopeType.CTE": {"fullname": "sqlglot.optimizer.scope.ScopeType.CTE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.CTE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.CTE: 4>"}, "sqlglot.optimizer.scope.ScopeType.UNION": {"fullname": "sqlglot.optimizer.scope.ScopeType.UNION", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UNION: 5>"}, "sqlglot.optimizer.scope.ScopeType.UDTF": {"fullname": "sqlglot.optimizer.scope.ScopeType.UDTF", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UDTF", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UDTF: 6>"}, "sqlglot.optimizer.scope.Scope": {"fullname": "sqlglot.optimizer.scope.Scope", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope", "kind": "class", "doc": "

Selection scope.

\n\n
Attributes:
\n\n
    \n
  • expression (exp.Select|exp.Union): Root expression of this scope
  • \n
  • sources (dict[str, exp.Table|Scope]): Mapping of source name to either\na Table expression or another Scope instance. For example:\n SELECT * FROM x {\"x\": Table(this=\"x\")}\n SELECT * FROM x AS y {\"y\": Table(this=\"x\")}\n SELECT * FROM (SELECT ...) AS y {\"y\": Scope(...)}
  • \n
  • lateral_sources (dict[str, exp.Table|Scope]): Sources from laterals\nFor example:\n SELECT c FROM x LATERAL VIEW EXPLODE (a) AS c;\nThe LATERAL VIEW EXPLODE gets x as a source.
  • \n
  • outer_column_list (list[str]): If this is a derived table or CTE, and the outer query\ndefines a column list of it's alias of this scope, this is that list of columns.\nFor example:\n SELECT * FROM (SELECT ...) AS y(col1, col2)\nThe inner query would have [\"col1\", \"col2\"] for its outer_column_list
  • \n
  • parent (Scope): Parent scope
  • \n
  • scope_type (ScopeType): Type of this scope, relative to it's parent
  • \n
  • subquery_scopes (list[Scope]): List of all child scopes for subqueries
  • \n
  • cte_scopes (list[Scope]): List of all child scopes for CTEs
  • \n
  • derived_table_scopes (list[Scope]): List of all child scopes for derived_tables
  • \n
  • udtf_scopes (list[Scope]): List of all child scopes for user defined tabular functions
  • \n
  • table_scopes (list[Scope]): derived_table_scopes + udtf_scopes, in the order that they're defined
  • \n
  • union_scopes (list[Scope, Scope]): If this Scope is for a Union expression, this will be\na list of the left and right child scopes.
  • \n
\n"}, "sqlglot.optimizer.scope.Scope.__init__": {"fullname": "sqlglot.optimizer.scope.Scope.__init__", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression,\tsources=None,\touter_column_list=None,\tparent=None,\tscope_type=<ScopeType.ROOT: 1>,\tlateral_sources=None)"}, "sqlglot.optimizer.scope.Scope.clear_cache": {"fullname": "sqlglot.optimizer.scope.Scope.clear_cache", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.clear_cache", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.branch": {"fullname": "sqlglot.optimizer.scope.Scope.branch", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.branch", "kind": "function", "doc": "

Branch from the current scope to a new, inner scope

\n", "signature": "(self, expression, scope_type, chain_sources=None, **kwargs):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.walk": {"fullname": "sqlglot.optimizer.scope.Scope.walk", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.walk", "kind": "function", "doc": "

\n", "signature": "(self, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find": {"fullname": "sqlglot.optimizer.scope.Scope.find", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find", "kind": "function", "doc": "

Returns the first node in this scope which matches at least one of the specified types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Returns:
\n\n
\n

exp.Expression: the node which matches the criteria or None if no node matching\n the criteria was found.

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find_all": {"fullname": "sqlglot.optimizer.scope.Scope.find_all", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this scope and only yields those that\nmatch at least one of the specified expression types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Yields:
\n\n
\n

exp.Expression: nodes

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.replace": {"fullname": "sqlglot.optimizer.scope.Scope.replace", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.replace", "kind": "function", "doc": "

Replace old with new.

\n\n

This can be used instead of exp.Expression.replace to ensure the Scope is kept up-to-date.

\n\n
Arguments:
\n\n
    \n
  • old (exp.Expression): old node
  • \n
  • new (exp.Expression): new node
  • \n
\n", "signature": "(self, old, new):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.tables": {"fullname": "sqlglot.optimizer.scope.Scope.tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.tables", "kind": "variable", "doc": "

List of tables in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Table]: tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.ctes": {"fullname": "sqlglot.optimizer.scope.Scope.ctes", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ctes", "kind": "variable", "doc": "

List of CTEs in this scope.

\n\n
Returns:
\n\n
\n

list[exp.CTE]: ctes

\n
\n"}, "sqlglot.optimizer.scope.Scope.derived_tables": {"fullname": "sqlglot.optimizer.scope.Scope.derived_tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.derived_tables", "kind": "variable", "doc": "

List of derived tables in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM (SELECT ...) <- that's a derived table

\n
\n\n
Returns:
\n\n
\n

list[exp.Subquery]: derived tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.udtfs": {"fullname": "sqlglot.optimizer.scope.Scope.udtfs", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.udtfs", "kind": "variable", "doc": "

List of \"User Defined Tabular Functions\" in this scope.

\n\n
Returns:
\n\n
\n

list[exp.UDTF]: UDTFs

\n
\n"}, "sqlglot.optimizer.scope.Scope.subqueries": {"fullname": "sqlglot.optimizer.scope.Scope.subqueries", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.subqueries", "kind": "variable", "doc": "

List of subqueries in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM x WHERE a IN (SELECT ...) <- that's a subquery

\n
\n\n
Returns:
\n\n
\n

list[exp.Subqueryable]: subqueries

\n
\n"}, "sqlglot.optimizer.scope.Scope.columns": {"fullname": "sqlglot.optimizer.scope.Scope.columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.columns", "kind": "variable", "doc": "

List of columns in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances in this scope, plus any\n Columns that reference this scope from correlated subqueries.

\n
\n"}, "sqlglot.optimizer.scope.Scope.selected_sources": {"fullname": "sqlglot.optimizer.scope.Scope.selected_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selected_sources", "kind": "variable", "doc": "

Mapping of nodes and sources that are actually selected from in this scope.

\n\n

That is, all tables in a schema are selectable at any point. But a\ntable only becomes a selected source if it's included in a FROM or JOIN clause.

\n\n
Returns:
\n\n
\n

dict[str, (exp.Table|exp.Select, exp.Table|Scope)]: selected sources and nodes

\n
\n"}, "sqlglot.optimizer.scope.Scope.cte_sources": {"fullname": "sqlglot.optimizer.scope.Scope.cte_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.cte_sources", "kind": "variable", "doc": "

Sources that are CTEs.

\n\n
Returns:
\n\n
\n

dict[str, Scope]: Mapping of source alias to Scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.selects": {"fullname": "sqlglot.optimizer.scope.Scope.selects", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selects", "kind": "variable", "doc": "

Select expressions of this scope.

\n\n

For example, for the following expression:\n SELECT 1 as a, 2 as b FROM x

\n\n

The outputs are the \"1 as a\" and \"2 as b\" expressions.

\n\n
Returns:
\n\n
\n

list[exp.Expression]: expressions

\n
\n"}, "sqlglot.optimizer.scope.Scope.external_columns": {"fullname": "sqlglot.optimizer.scope.Scope.external_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.external_columns", "kind": "variable", "doc": "

Columns that appear to reference sources in outer scopes.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that don't reference\n sources in the current scope.

\n
\n"}, "sqlglot.optimizer.scope.Scope.unqualified_columns": {"fullname": "sqlglot.optimizer.scope.Scope.unqualified_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.unqualified_columns", "kind": "variable", "doc": "

Unqualified columns in the current scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Unqualified columns

\n
\n"}, "sqlglot.optimizer.scope.Scope.join_hints": {"fullname": "sqlglot.optimizer.scope.Scope.join_hints", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.join_hints", "kind": "variable", "doc": "

Hints that exist in the scope that reference tables

\n\n
Returns:
\n\n
\n

list[exp.JoinHint]: Join hints that are referenced within the scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.source_columns": {"fullname": "sqlglot.optimizer.scope.Scope.source_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.source_columns", "kind": "function", "doc": "

Get all columns in the current scope for a particular source.

\n\n
Arguments:
\n\n
    \n
  • source_name (str): Name of the source
  • \n
\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that reference source_name

\n
\n", "signature": "(self, source_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.is_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_subquery", "kind": "variable", "doc": "

Determine if this scope is a subquery

\n"}, "sqlglot.optimizer.scope.Scope.is_derived_table": {"fullname": "sqlglot.optimizer.scope.Scope.is_derived_table", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_derived_table", "kind": "variable", "doc": "

Determine if this scope is a derived table

\n"}, "sqlglot.optimizer.scope.Scope.is_union": {"fullname": "sqlglot.optimizer.scope.Scope.is_union", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_union", "kind": "variable", "doc": "

Determine if this scope is a union

\n"}, "sqlglot.optimizer.scope.Scope.is_cte": {"fullname": "sqlglot.optimizer.scope.Scope.is_cte", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_cte", "kind": "variable", "doc": "

Determine if this scope is a common table expression

\n"}, "sqlglot.optimizer.scope.Scope.is_root": {"fullname": "sqlglot.optimizer.scope.Scope.is_root", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_root", "kind": "variable", "doc": "

Determine if this is the root scope

\n"}, "sqlglot.optimizer.scope.Scope.is_udtf": {"fullname": "sqlglot.optimizer.scope.Scope.is_udtf", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_udtf", "kind": "variable", "doc": "

Determine if this scope is a UDTF (User Defined Table Function)

\n"}, "sqlglot.optimizer.scope.Scope.is_correlated_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_correlated_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_correlated_subquery", "kind": "variable", "doc": "

Determine if this scope is a correlated subquery

\n"}, "sqlglot.optimizer.scope.Scope.rename_source": {"fullname": "sqlglot.optimizer.scope.Scope.rename_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.rename_source", "kind": "function", "doc": "

Rename a source in this scope

\n", "signature": "(self, old_name, new_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.add_source": {"fullname": "sqlglot.optimizer.scope.Scope.add_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.add_source", "kind": "function", "doc": "

Add a source to this scope

\n", "signature": "(self, name, source):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.remove_source": {"fullname": "sqlglot.optimizer.scope.Scope.remove_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.remove_source", "kind": "function", "doc": "

Remove a source from this scope

\n", "signature": "(self, name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.traverse": {"fullname": "sqlglot.optimizer.scope.Scope.traverse", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.traverse", "kind": "function", "doc": "

Traverse the scope tree from this node.

\n\n
Yields:
\n\n
\n

Scope: scope instances in depth-first-search post-order

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.ref_count": {"fullname": "sqlglot.optimizer.scope.Scope.ref_count", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ref_count", "kind": "function", "doc": "

Count the number of times each scope in this tree is referenced.

\n\n
Returns:
\n\n
\n

dict[int, int]: Mapping of Scope instance ID to reference count

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.traverse_scope": {"fullname": "sqlglot.optimizer.scope.traverse_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "traverse_scope", "kind": "function", "doc": "

Traverse an expression by it's \"scopes\".

\n\n

\"Scope\" represents the current context of a Select statement.

\n\n

This is helpful for optimizing queries, where we need more information than\nthe expression tree itself. For example, we might care about the source\nnames within a subquery. Returns a list because a generator could result in\nincomplete properties which is confusing.

\n\n
Examples:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT a FROM x) AS y")\n>>> scopes = traverse_scope(expression)\n>>> scopes[0].expression.sql(), list(scopes[0].sources)\n('SELECT a FROM x', ['x'])\n>>> scopes[1].expression.sql(), list(scopes[1].sources)\n('SELECT a FROM (SELECT a FROM x) AS y', ['y'])\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to traverse
  • \n
\n\n
Returns:
\n\n
\n

list[Scope]: scope instances

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.build_scope": {"fullname": "sqlglot.optimizer.scope.build_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "build_scope", "kind": "function", "doc": "

Build a scope tree.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to build the scope tree for
  • \n
\n\n
Returns:
\n\n
\n

Scope: root scope

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.walk_in_scope": {"fullname": "sqlglot.optimizer.scope.walk_in_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "walk_in_scope", "kind": "function", "doc": "

Returns a generator object which visits all nodes in the syntrax tree, stopping at\nnodes that start child scopes.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression):
  • \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
\n\n
Yields:
\n\n
\n

tuple[exp.Expression, Optional[exp.Expression], str]: node, parent, arg key

\n
\n", "signature": "(expression, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify": {"fullname": "sqlglot.optimizer.simplify", "modulename": "sqlglot.optimizer.simplify", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.simplify.simplify": {"fullname": "sqlglot.optimizer.simplify.simplify", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify", "kind": "function", "doc": "

Rewrite sqlglot AST to simplify expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("TRUE AND TRUE")\n>>> simplify(expression).sql()\n'TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to simplify
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: simplified expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.rewrite_between": {"fullname": "sqlglot.optimizer.simplify.rewrite_between", "modulename": "sqlglot.optimizer.simplify", "qualname": "rewrite_between", "kind": "function", "doc": "

Rewrite x between y and z to x >= y AND x <= z.

\n\n

This is done because comparison simplification is only done on lt/lte/gt/gte.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_not": {"fullname": "sqlglot.optimizer.simplify.simplify_not", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_not", "kind": "function", "doc": "

Demorgan's Law\nNOT (x OR y) -> NOT x AND NOT y\nNOT (x AND y) -> NOT x OR NOT y

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.flatten": {"fullname": "sqlglot.optimizer.simplify.flatten", "modulename": "sqlglot.optimizer.simplify", "qualname": "flatten", "kind": "function", "doc": "

A AND (B AND C) -> A AND B AND C\nA OR (B OR C) -> A OR B OR C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_connectors": {"fullname": "sqlglot.optimizer.simplify.simplify_connectors", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_connectors", "kind": "function", "doc": "

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_compliments": {"fullname": "sqlglot.optimizer.simplify.remove_compliments", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_compliments", "kind": "function", "doc": "

Removing compliments.

\n\n

A AND NOT A -> FALSE\nA OR NOT A -> TRUE

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.uniq_sort": {"fullname": "sqlglot.optimizer.simplify.uniq_sort", "modulename": "sqlglot.optimizer.simplify", "qualname": "uniq_sort", "kind": "function", "doc": "

Uniq and sort a connector.

\n\n

C AND A AND B AND B -> A AND B AND C

\n", "signature": "(expression, cache=None, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.absorb_and_eliminate": {"fullname": "sqlglot.optimizer.simplify.absorb_and_eliminate", "modulename": "sqlglot.optimizer.simplify", "qualname": "absorb_and_eliminate", "kind": "function", "doc": "

absorption:\n A AND (A OR B) -> A\n A OR (A AND B) -> A\n A AND (NOT A OR B) -> A AND B\n A OR (NOT A AND B) -> A OR B\nelimination:\n (A AND B) OR (A AND NOT B) -> A\n (A OR B) AND (A OR NOT B) -> A

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_literals": {"fullname": "sqlglot.optimizer.simplify.simplify_literals", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_literals", "kind": "function", "doc": "

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_parens": {"fullname": "sqlglot.optimizer.simplify.simplify_parens", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_parens", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_where_true": {"fullname": "sqlglot.optimizer.simplify.remove_where_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_where_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.always_true": {"fullname": "sqlglot.optimizer.simplify.always_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "always_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_complement": {"fullname": "sqlglot.optimizer.simplify.is_complement", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_complement", "kind": "function", "doc": "

\n", "signature": "(a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_false": {"fullname": "sqlglot.optimizer.simplify.is_false", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_false", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_null": {"fullname": "sqlglot.optimizer.simplify.is_null", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_null", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.eval_boolean": {"fullname": "sqlglot.optimizer.simplify.eval_boolean", "modulename": "sqlglot.optimizer.simplify", "qualname": "eval_boolean", "kind": "function", "doc": "

\n", "signature": "(expression, a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_date": {"fullname": "sqlglot.optimizer.simplify.extract_date", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_date", "kind": "function", "doc": "

\n", "signature": "(cast):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_interval": {"fullname": "sqlglot.optimizer.simplify.extract_interval", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_interval", "kind": "function", "doc": "

\n", "signature": "(interval):", "funcdef": "def"}, "sqlglot.optimizer.simplify.date_literal": {"fullname": "sqlglot.optimizer.simplify.date_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "date_literal", "kind": "function", "doc": "

\n", "signature": "(date):", "funcdef": "def"}, "sqlglot.optimizer.simplify.boolean_literal": {"fullname": "sqlglot.optimizer.simplify.boolean_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "boolean_literal", "kind": "function", "doc": "

\n", "signature": "(condition):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.unnest_subqueries.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to convert some predicates with subqueries into joins.

\n\n

Convert scalar subqueries into cross joins.\nConvert correlated or vectorized subqueries into a group by so it is not a many to many left join.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT * FROM x AS x WHERE (SELECT y.a AS a FROM y AS y WHERE x.a = y.a) = 1 ")\n>>> unnest_subqueries(expression).sql()\n'SELECT * FROM x AS x LEFT JOIN (SELECT y.a AS a FROM y AS y WHERE TRUE GROUP BY y.a) AS _u_0 ON x.a = _u_0.a WHERE _u_0.a = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to unnest
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: unnested expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.unnest": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, sequence):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.decorrelate": {"fullname": "sqlglot.optimizer.unnest_subqueries.decorrelate", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "decorrelate", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, external_columns, sequence):", "funcdef": "def"}, "sqlglot.parser": {"fullname": "sqlglot.parser", "modulename": "sqlglot.parser", "kind": "module", "doc": "

\n"}, "sqlglot.parser.parse_var_map": {"fullname": "sqlglot.parser.parse_var_map", "modulename": "sqlglot.parser", "qualname": "parse_var_map", "kind": "function", "doc": "

\n", "signature": "(args: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.parse_like": {"fullname": "sqlglot.parser.parse_like", "modulename": "sqlglot.parser", "qualname": "parse_like", "kind": "function", "doc": "

\n", "signature": "(args):", "funcdef": "def"}, "sqlglot.parser.binary_range_parser": {"fullname": "sqlglot.parser.binary_range_parser", "modulename": "sqlglot.parser", "qualname": "binary_range_parser", "kind": "function", "doc": "

\n", "signature": "(\texpr_type: Type[sqlglot.expressions.Expression]) -> Callable[[sqlglot.parser.Parser, Optional[sqlglot.expressions.Expression]], Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser": {"fullname": "sqlglot.parser.Parser", "modulename": "sqlglot.parser", "qualname": "Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n"}, "sqlglot.parser.Parser.__init__": {"fullname": "sqlglot.parser.Parser.__init__", "modulename": "sqlglot.parser", "qualname": "Parser.__init__", "kind": "function", "doc": "

\n", "signature": "(\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\terror_message_context: int = 100,\tindex_offset: int = 0,\tunnest_column_only: bool = False,\talias_post_tablesample: bool = False,\tmax_errors: int = 3,\tnull_ordering: Optional[str] = None)"}, "sqlglot.parser.Parser.reset": {"fullname": "sqlglot.parser.Parser.reset", "modulename": "sqlglot.parser", "qualname": "Parser.reset", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.parser.Parser.parse": {"fullname": "sqlglot.parser.Parser.parse", "modulename": "sqlglot.parser", "qualname": "Parser.parse", "kind": "function", "doc": "

Parses a list of tokens and returns a list of syntax trees, one tree\nper parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The list of syntax trees.

\n
\n", "signature": "(\tself,\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.parse_into": {"fullname": "sqlglot.parser.Parser.parse_into", "modulename": "sqlglot.parser", "qualname": "Parser.parse_into", "kind": "function", "doc": "

Parses a list of tokens into a given Expression type. If a collection of Expression\ntypes is given instead, this method will try to parse the token list into each one\nof them, stopping at the first for which the parsing succeeds.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to try and parse the token list into.
  • \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The target Expression.

\n
\n", "signature": "(\tself,\texpression_types: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.check_errors": {"fullname": "sqlglot.parser.Parser.check_errors", "modulename": "sqlglot.parser", "qualname": "Parser.check_errors", "kind": "function", "doc": "

Logs or raises any found errors, depending on the chosen error level setting.

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.raise_error": {"fullname": "sqlglot.parser.Parser.raise_error", "modulename": "sqlglot.parser", "qualname": "Parser.raise_error", "kind": "function", "doc": "

Appends an error in the list of recorded errors or raises it, depending on the chosen\nerror level setting.

\n", "signature": "(self, message: str, token: Optional[sqlglot.tokens.Token] = None) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.expression": {"fullname": "sqlglot.parser.Parser.expression", "modulename": "sqlglot.parser", "qualname": "Parser.expression", "kind": "function", "doc": "

Creates a new, validated Expression.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • comments: an optional list of comments to attach to the expression.
  • \n
  • kwargs: the arguments to set for the expression along with their respective values.
  • \n
\n\n
Returns:
\n\n
\n

The target expression.

\n
\n", "signature": "(\tself,\texp_class: Type[~E],\tcomments: Optional[List[str]] = None,\t**kwargs) -> ~E:", "funcdef": "def"}, "sqlglot.parser.Parser.validate_expression": {"fullname": "sqlglot.parser.Parser.validate_expression", "modulename": "sqlglot.parser", "qualname": "Parser.validate_expression", "kind": "function", "doc": "

Validates an already instantiated expression, making sure that all its mandatory arguments\nare set.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to validate.
  • \n
  • args: an optional list of items that was used to instantiate the expression, if it's a Func.
  • \n
\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\targs: Optional[List] = None) -> None:", "funcdef": "def"}, "sqlglot.planner": {"fullname": "sqlglot.planner", "modulename": "sqlglot.planner", "kind": "module", "doc": "

\n"}, "sqlglot.planner.Plan": {"fullname": "sqlglot.planner.Plan", "modulename": "sqlglot.planner", "qualname": "Plan", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Plan.__init__": {"fullname": "sqlglot.planner.Plan.__init__", "modulename": "sqlglot.planner", "qualname": "Plan.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.planner.Step": {"fullname": "sqlglot.planner.Step", "modulename": "sqlglot.planner", "qualname": "Step", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Step.from_expression": {"fullname": "sqlglot.planner.Step.from_expression", "modulename": "sqlglot.planner", "qualname": "Step.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Step.add_dependency": {"fullname": "sqlglot.planner.Step.add_dependency", "modulename": "sqlglot.planner", "qualname": "Step.add_dependency", "kind": "function", "doc": "

\n", "signature": "(self, dependency: sqlglot.planner.Step) -> None:", "funcdef": "def"}, "sqlglot.planner.Step.to_s": {"fullname": "sqlglot.planner.Step.to_s", "modulename": "sqlglot.planner", "qualname": "Step.to_s", "kind": "function", "doc": "

\n", "signature": "(self, level: int = 0) -> str:", "funcdef": "def"}, "sqlglot.planner.Scan": {"fullname": "sqlglot.planner.Scan", "modulename": "sqlglot.planner", "qualname": "Scan", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Scan.from_expression": {"fullname": "sqlglot.planner.Scan.from_expression", "modulename": "sqlglot.planner", "qualname": "Scan.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Join": {"fullname": "sqlglot.planner.Join", "modulename": "sqlglot.planner", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Join.from_joins": {"fullname": "sqlglot.planner.Join.from_joins", "modulename": "sqlglot.planner", "qualname": "Join.from_joins", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tjoins: Iterable[sqlglot.expressions.Join],\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Aggregate": {"fullname": "sqlglot.planner.Aggregate", "modulename": "sqlglot.planner", "qualname": "Aggregate", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Sort": {"fullname": "sqlglot.planner.Sort", "modulename": "sqlglot.planner", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation": {"fullname": "sqlglot.planner.SetOperation", "modulename": "sqlglot.planner", "qualname": "SetOperation", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation.__init__": {"fullname": "sqlglot.planner.SetOperation.__init__", "modulename": "sqlglot.planner", "qualname": "SetOperation.__init__", "kind": "function", "doc": "

\n", "signature": "(\top: Type[sqlglot.expressions.Expression],\tleft: str | None,\tright: str | None,\tdistinct: bool = False)"}, "sqlglot.planner.SetOperation.from_expression": {"fullname": "sqlglot.planner.SetOperation.from_expression", "modulename": "sqlglot.planner", "qualname": "SetOperation.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.schema.Schema": {"fullname": "sqlglot.schema.Schema", "modulename": "sqlglot.schema", "qualname": "Schema", "kind": "class", "doc": "

Abstract base class for database schemas

\n", "bases": "abc.ABC"}, "sqlglot.schema.Schema.add_table": {"fullname": "sqlglot.schema.Schema.add_table", "modulename": "sqlglot.schema", "qualname": "Schema.add_table", "kind": "function", "doc": "

Register or update a table. Some implementing classes may require column information to also be provided.

\n\n
Arguments:
\n\n
    \n
  • table: table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.Schema.column_names": {"fullname": "sqlglot.schema.Schema.column_names", "modulename": "sqlglot.schema", "qualname": "Schema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.Schema.get_column_type": {"fullname": "sqlglot.schema.Schema.get_column_type", "modulename": "sqlglot.schema", "qualname": "Schema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.Schema.supported_table_args": {"fullname": "sqlglot.schema.Schema.supported_table_args", "modulename": "sqlglot.schema", "qualname": "Schema.supported_table_args", "kind": "variable", "doc": "

Table arguments this schema support, e.g. (\"this\", \"db\", \"catalog\")

\n", "annotation": ": Tuple[str, ...]"}, "sqlglot.schema.AbstractMappingSchema": {"fullname": "sqlglot.schema.AbstractMappingSchema", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "typing.Generic[~T]"}, "sqlglot.schema.AbstractMappingSchema.__init__": {"fullname": "sqlglot.schema.AbstractMappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(mapping: dict | None = None)"}, "sqlglot.schema.AbstractMappingSchema.table_parts": {"fullname": "sqlglot.schema.AbstractMappingSchema.table_parts", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.table_parts", "kind": "function", "doc": "

\n", "signature": "(self, table: sqlglot.expressions.Table) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.AbstractMappingSchema.find": {"fullname": "sqlglot.schema.AbstractMappingSchema.find", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.find", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table,\ttrie: Optional[Dict] = None,\traise_on_missing: bool = True) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema": {"fullname": "sqlglot.schema.MappingSchema", "modulename": "sqlglot.schema", "qualname": "MappingSchema", "kind": "class", "doc": "

Schema based on a nested mapping.

\n\n
Arguments:
\n\n
    \n
  • schema (dict): Mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
    7. None - Tables will be added later
    8. \n
  • \n
  • visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns\nare assumed to be visible. The nesting should mirror that of the schema:\n
      \n
    1. {table: set(cols)}}
    2. \n
    3. {db: {table: set(cols)}}}
    4. \n
    5. {catalog: {db: {table: set(*cols)}}}}
    6. \n
  • \n
  • dialect (str): The dialect to be used for custom type mappings.
  • \n
\n", "bases": "sqlglot.schema.AbstractMappingSchema[typing.Dict[str, str]], Schema"}, "sqlglot.schema.MappingSchema.__init__": {"fullname": "sqlglot.schema.MappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "MappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(\tschema: Optional[Dict] = None,\tvisible: Optional[Dict] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None)"}, "sqlglot.schema.MappingSchema.from_mapping_schema": {"fullname": "sqlglot.schema.MappingSchema.from_mapping_schema", "modulename": "sqlglot.schema", "qualname": "MappingSchema.from_mapping_schema", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmapping_schema: sqlglot.schema.MappingSchema) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.copy": {"fullname": "sqlglot.schema.MappingSchema.copy", "modulename": "sqlglot.schema", "qualname": "MappingSchema.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.add_table": {"fullname": "sqlglot.schema.MappingSchema.add_table", "modulename": "sqlglot.schema", "qualname": "MappingSchema.add_table", "kind": "function", "doc": "

Register or update a table. Updates are only performed if a new column mapping is provided.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.column_names": {"fullname": "sqlglot.schema.MappingSchema.column_names", "modulename": "sqlglot.schema", "qualname": "MappingSchema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.get_column_type": {"fullname": "sqlglot.schema.MappingSchema.get_column_type", "modulename": "sqlglot.schema", "qualname": "MappingSchema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column | str) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.ensure_schema": {"fullname": "sqlglot.schema.ensure_schema", "modulename": "sqlglot.schema", "qualname": "ensure_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Any,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.schema.Schema:", "funcdef": "def"}, "sqlglot.schema.ensure_column_mapping": {"fullname": "sqlglot.schema.ensure_column_mapping", "modulename": "sqlglot.schema", "qualname": "ensure_column_mapping", "kind": "function", "doc": "

\n", "signature": "(\tmapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType]) -> Dict:", "funcdef": "def"}, "sqlglot.schema.flatten_schema": {"fullname": "sqlglot.schema.flatten_schema", "modulename": "sqlglot.schema", "qualname": "flatten_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Dict,\tdepth: int,\tkeys: Optional[List[str]] = None) -> List[List[str]]:", "funcdef": "def"}, "sqlglot.serde": {"fullname": "sqlglot.serde", "modulename": "sqlglot.serde", "kind": "module", "doc": "

\n"}, "sqlglot.serde.dump": {"fullname": "sqlglot.serde.dump", "modulename": "sqlglot.serde", "qualname": "dump", "kind": "function", "doc": "

Recursively dump an AST into a JSON-serializable dict.

\n", "signature": "(\tnode: Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]) -> Union[dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.serde.load": {"fullname": "sqlglot.serde.load", "modulename": "sqlglot.serde", "qualname": "load", "kind": "function", "doc": "

Recursively load a dict (as returned by dump) into an AST.

\n", "signature": "(\tobj: Union[dict, list, str, float, int, bool]) -> Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.time": {"fullname": "sqlglot.time", "modulename": "sqlglot.time", "kind": "module", "doc": "

\n"}, "sqlglot.time.format_time": {"fullname": "sqlglot.time.format_time", "modulename": "sqlglot.time", "qualname": "format_time", "kind": "function", "doc": "

Converts a time string given a mapping.

\n\n
Examples:
\n\n
\n
\n
>>> format_time("%Y", {"%Y": "YYYY"})\n'YYYY'\n
\n
\n \n

Args:\n mapping: dictionary of time format to target time format.\n trie: optional trie, can be passed in for performance.

\n \n

Returns:\n The converted time string.

\n
\n", "signature": "(\tstring: str,\tmapping: Dict[str, str],\ttrie: Optional[Dict] = None) -> Optional[str]:", "funcdef": "def"}, "sqlglot.tokens": {"fullname": "sqlglot.tokens", "modulename": "sqlglot.tokens", "kind": "module", "doc": "

\n"}, "sqlglot.tokens.TokenType": {"fullname": "sqlglot.tokens.TokenType", "modulename": "sqlglot.tokens", "qualname": "TokenType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.tokens.TokenType.L_PAREN": {"fullname": "sqlglot.tokens.TokenType.L_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_PAREN: 'L_PAREN'>"}, "sqlglot.tokens.TokenType.R_PAREN": {"fullname": "sqlglot.tokens.TokenType.R_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_PAREN: 'R_PAREN'>"}, "sqlglot.tokens.TokenType.L_BRACKET": {"fullname": "sqlglot.tokens.TokenType.L_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACKET: 'L_BRACKET'>"}, "sqlglot.tokens.TokenType.R_BRACKET": {"fullname": "sqlglot.tokens.TokenType.R_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACKET: 'R_BRACKET'>"}, "sqlglot.tokens.TokenType.L_BRACE": {"fullname": "sqlglot.tokens.TokenType.L_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACE: 'L_BRACE'>"}, "sqlglot.tokens.TokenType.R_BRACE": {"fullname": "sqlglot.tokens.TokenType.R_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACE: 'R_BRACE'>"}, "sqlglot.tokens.TokenType.COMMA": {"fullname": "sqlglot.tokens.TokenType.COMMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.COMMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COMMA: 'COMMA'>"}, "sqlglot.tokens.TokenType.DOT": {"fullname": "sqlglot.tokens.TokenType.DOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOT: 'DOT'>"}, "sqlglot.tokens.TokenType.DASH": {"fullname": "sqlglot.tokens.TokenType.DASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.DASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DASH: 'DASH'>"}, "sqlglot.tokens.TokenType.PLUS": {"fullname": "sqlglot.tokens.TokenType.PLUS", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLUS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLUS: 'PLUS'>"}, "sqlglot.tokens.TokenType.COLON": {"fullname": "sqlglot.tokens.TokenType.COLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLON: 'COLON'>"}, "sqlglot.tokens.TokenType.DCOLON": {"fullname": "sqlglot.tokens.TokenType.DCOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.DCOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DCOLON: 'DCOLON'>"}, "sqlglot.tokens.TokenType.SEMICOLON": {"fullname": "sqlglot.tokens.TokenType.SEMICOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMICOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMICOLON: 'SEMICOLON'>"}, "sqlglot.tokens.TokenType.STAR": {"fullname": "sqlglot.tokens.TokenType.STAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.STAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STAR: 'STAR'>"}, "sqlglot.tokens.TokenType.BACKSLASH": {"fullname": "sqlglot.tokens.TokenType.BACKSLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.BACKSLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BACKSLASH: 'BACKSLASH'>"}, "sqlglot.tokens.TokenType.SLASH": {"fullname": "sqlglot.tokens.TokenType.SLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.SLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SLASH: 'SLASH'>"}, "sqlglot.tokens.TokenType.LT": {"fullname": "sqlglot.tokens.TokenType.LT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT: 'LT'>"}, "sqlglot.tokens.TokenType.LTE": {"fullname": "sqlglot.tokens.TokenType.LTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.LTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LTE: 'LTE'>"}, "sqlglot.tokens.TokenType.GT": {"fullname": "sqlglot.tokens.TokenType.GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GT: 'GT'>"}, "sqlglot.tokens.TokenType.GTE": {"fullname": "sqlglot.tokens.TokenType.GTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.GTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GTE: 'GTE'>"}, "sqlglot.tokens.TokenType.NOT": {"fullname": "sqlglot.tokens.TokenType.NOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.NOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NOT: 'NOT'>"}, "sqlglot.tokens.TokenType.EQ": {"fullname": "sqlglot.tokens.TokenType.EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.EQ: 'EQ'>"}, "sqlglot.tokens.TokenType.NEQ": {"fullname": "sqlglot.tokens.TokenType.NEQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NEQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NEQ: 'NEQ'>"}, "sqlglot.tokens.TokenType.NULLSAFE_EQ": {"fullname": "sqlglot.tokens.TokenType.NULLSAFE_EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NULLSAFE_EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>"}, "sqlglot.tokens.TokenType.AND": {"fullname": "sqlglot.tokens.TokenType.AND", "modulename": "sqlglot.tokens", "qualname": "TokenType.AND", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AND: 'AND'>"}, "sqlglot.tokens.TokenType.OR": {"fullname": "sqlglot.tokens.TokenType.OR", "modulename": "sqlglot.tokens", "qualname": "TokenType.OR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OR: 'OR'>"}, "sqlglot.tokens.TokenType.AMP": {"fullname": "sqlglot.tokens.TokenType.AMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.AMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AMP: 'AMP'>"}, "sqlglot.tokens.TokenType.DPIPE": {"fullname": "sqlglot.tokens.TokenType.DPIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DPIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DPIPE: 'DPIPE'>"}, "sqlglot.tokens.TokenType.PIPE": {"fullname": "sqlglot.tokens.TokenType.PIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIPE: 'PIPE'>"}, "sqlglot.tokens.TokenType.CARET": {"fullname": "sqlglot.tokens.TokenType.CARET", "modulename": "sqlglot.tokens", "qualname": "TokenType.CARET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CARET: 'CARET'>"}, "sqlglot.tokens.TokenType.TILDA": {"fullname": "sqlglot.tokens.TokenType.TILDA", "modulename": "sqlglot.tokens", "qualname": "TokenType.TILDA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TILDA: 'TILDA'>"}, "sqlglot.tokens.TokenType.ARROW": {"fullname": "sqlglot.tokens.TokenType.ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ARROW: 'ARROW'>"}, "sqlglot.tokens.TokenType.DARROW": {"fullname": "sqlglot.tokens.TokenType.DARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DARROW: 'DARROW'>"}, "sqlglot.tokens.TokenType.FARROW": {"fullname": "sqlglot.tokens.TokenType.FARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.FARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FARROW: 'FARROW'>"}, "sqlglot.tokens.TokenType.HASH": {"fullname": "sqlglot.tokens.TokenType.HASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH: 'HASH'>"}, "sqlglot.tokens.TokenType.HASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.HASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH_ARROW: 'HASH_ARROW'>"}, "sqlglot.tokens.TokenType.DHASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.DHASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DHASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DHASH_ARROW: 'DHASH_ARROW'>"}, "sqlglot.tokens.TokenType.LR_ARROW": {"fullname": "sqlglot.tokens.TokenType.LR_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.LR_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LR_ARROW: 'LR_ARROW'>"}, "sqlglot.tokens.TokenType.LT_AT": {"fullname": "sqlglot.tokens.TokenType.LT_AT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT_AT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT_AT: 'LT_AT'>"}, "sqlglot.tokens.TokenType.AT_GT": {"fullname": "sqlglot.tokens.TokenType.AT_GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.AT_GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AT_GT: 'AT_GT'>"}, "sqlglot.tokens.TokenType.DOLLAR": {"fullname": "sqlglot.tokens.TokenType.DOLLAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOLLAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOLLAR: 'DOLLAR'>"}, "sqlglot.tokens.TokenType.PARAMETER": {"fullname": "sqlglot.tokens.TokenType.PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARAMETER: 'PARAMETER'>"}, "sqlglot.tokens.TokenType.SESSION_PARAMETER": {"fullname": "sqlglot.tokens.TokenType.SESSION_PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.SESSION_PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>"}, "sqlglot.tokens.TokenType.NATIONAL": {"fullname": "sqlglot.tokens.TokenType.NATIONAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.NATIONAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NATIONAL: 'NATIONAL'>"}, "sqlglot.tokens.TokenType.DAMP": {"fullname": "sqlglot.tokens.TokenType.DAMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.DAMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DAMP: 'DAMP'>"}, "sqlglot.tokens.TokenType.BLOCK_START": {"fullname": "sqlglot.tokens.TokenType.BLOCK_START", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_START", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_START: 'BLOCK_START'>"}, "sqlglot.tokens.TokenType.BLOCK_END": {"fullname": "sqlglot.tokens.TokenType.BLOCK_END", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_END", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_END: 'BLOCK_END'>"}, "sqlglot.tokens.TokenType.SPACE": {"fullname": "sqlglot.tokens.TokenType.SPACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.SPACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SPACE: 'SPACE'>"}, "sqlglot.tokens.TokenType.BREAK": {"fullname": "sqlglot.tokens.TokenType.BREAK", "modulename": "sqlglot.tokens", "qualname": "TokenType.BREAK", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BREAK: 'BREAK'>"}, "sqlglot.tokens.TokenType.STRING": {"fullname": "sqlglot.tokens.TokenType.STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRING: 'STRING'>"}, "sqlglot.tokens.TokenType.NUMBER": {"fullname": "sqlglot.tokens.TokenType.NUMBER", "modulename": "sqlglot.tokens", "qualname": "TokenType.NUMBER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NUMBER: 'NUMBER'>"}, "sqlglot.tokens.TokenType.IDENTIFIER": {"fullname": "sqlglot.tokens.TokenType.IDENTIFIER", "modulename": "sqlglot.tokens", "qualname": "TokenType.IDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.IDENTIFIER: 'IDENTIFIER'>"}, "sqlglot.tokens.TokenType.DATABASE": {"fullname": "sqlglot.tokens.TokenType.DATABASE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DATABASE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DATABASE: 'DATABASE'>"}, "sqlglot.tokens.TokenType.COLUMN": {"fullname": "sqlglot.tokens.TokenType.COLUMN", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLUMN", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.PARTITION: 'PARTITION'>"}, "sqlglot.tokens.TokenType.PARTITION_BY": {"fullname": "sqlglot.tokens.TokenType.PARTITION_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARTITION_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARTITION_BY: 'PARTITION_BY'>"}, "sqlglot.tokens.TokenType.PERCENT": {"fullname": "sqlglot.tokens.TokenType.PERCENT", "modulename": "sqlglot.tokens", "qualname": "TokenType.PERCENT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PERCENT: 'PERCENT'>"}, "sqlglot.tokens.TokenType.PIVOT": {"fullname": "sqlglot.tokens.TokenType.PIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIVOT: 'PIVOT'>"}, "sqlglot.tokens.TokenType.PLACEHOLDER": {"fullname": "sqlglot.tokens.TokenType.PLACEHOLDER", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLACEHOLDER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLACEHOLDER: 'PLACEHOLDER'>"}, "sqlglot.tokens.TokenType.PRAGMA": {"fullname": "sqlglot.tokens.TokenType.PRAGMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.PRAGMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PRAGMA: 'PRAGMA'>"}, "sqlglot.tokens.TokenType.PRECEDING": {"fullname": "sqlglot.tokens.TokenType.PRECEDING", "modulename": "sqlglot.tokens", "qualname": "TokenType.PRECEDING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PRECEDING: 'PRECEDING'>"}, "sqlglot.tokens.TokenType.PRIMARY_KEY": {"fullname": "sqlglot.tokens.TokenType.PRIMARY_KEY", "modulename": "sqlglot.tokens", "qualname": "TokenType.PRIMARY_KEY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PRIMARY_KEY: 'PRIMARY_KEY'>"}, "sqlglot.tokens.TokenType.PROCEDURE": {"fullname": "sqlglot.tokens.TokenType.PROCEDURE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PROCEDURE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PROCEDURE: 'PROCEDURE'>"}, "sqlglot.tokens.TokenType.PROPERTIES": {"fullname": "sqlglot.tokens.TokenType.PROPERTIES", "modulename": "sqlglot.tokens", "qualname": "TokenType.PROPERTIES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PROPERTIES: 'PROPERTIES'>"}, "sqlglot.tokens.TokenType.PSEUDO_TYPE": {"fullname": "sqlglot.tokens.TokenType.PSEUDO_TYPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PSEUDO_TYPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PSEUDO_TYPE: 'PSEUDO_TYPE'>"}, "sqlglot.tokens.TokenType.QUALIFY": {"fullname": "sqlglot.tokens.TokenType.QUALIFY", "modulename": "sqlglot.tokens", "qualname": "TokenType.QUALIFY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.QUALIFY: 'QUALIFY'>"}, "sqlglot.tokens.TokenType.QUOTE": {"fullname": "sqlglot.tokens.TokenType.QUOTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.QUOTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.QUOTE: 'QUOTE'>"}, "sqlglot.tokens.TokenType.RANGE": {"fullname": "sqlglot.tokens.TokenType.RANGE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RANGE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RANGE: 'RANGE'>"}, "sqlglot.tokens.TokenType.RECURSIVE": {"fullname": "sqlglot.tokens.TokenType.RECURSIVE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RECURSIVE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RECURSIVE: 'RECURSIVE'>"}, "sqlglot.tokens.TokenType.REPLACE": {"fullname": "sqlglot.tokens.TokenType.REPLACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.REPLACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.REPLACE: 'REPLACE'>"}, "sqlglot.tokens.TokenType.RESPECT_NULLS": {"fullname": "sqlglot.tokens.TokenType.RESPECT_NULLS", "modulename": "sqlglot.tokens", "qualname": "TokenType.RESPECT_NULLS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RESPECT_NULLS: 'RESPECT_NULLS'>"}, "sqlglot.tokens.TokenType.RETURNING": {"fullname": "sqlglot.tokens.TokenType.RETURNING", "modulename": "sqlglot.tokens", "qualname": "TokenType.RETURNING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RETURNING: 'RETURNING'>"}, "sqlglot.tokens.TokenType.REFERENCES": {"fullname": "sqlglot.tokens.TokenType.REFERENCES", "modulename": "sqlglot.tokens", "qualname": "TokenType.REFERENCES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.REFERENCES: 'REFERENCES'>"}, "sqlglot.tokens.TokenType.RIGHT": {"fullname": "sqlglot.tokens.TokenType.RIGHT", "modulename": "sqlglot.tokens", "qualname": "TokenType.RIGHT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RIGHT: 'RIGHT'>"}, "sqlglot.tokens.TokenType.RLIKE": {"fullname": "sqlglot.tokens.TokenType.RLIKE", "modulename": "sqlglot.tokens", "qualname": "TokenType.RLIKE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.RLIKE: 'RLIKE'>"}, "sqlglot.tokens.TokenType.ROLLBACK": {"fullname": "sqlglot.tokens.TokenType.ROLLBACK", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROLLBACK", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROLLBACK: 'ROLLBACK'>"}, "sqlglot.tokens.TokenType.ROLLUP": {"fullname": "sqlglot.tokens.TokenType.ROLLUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROLLUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROLLUP: 'ROLLUP'>"}, "sqlglot.tokens.TokenType.ROW": {"fullname": "sqlglot.tokens.TokenType.ROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROW: 'ROW'>"}, "sqlglot.tokens.TokenType.ROWS": {"fullname": "sqlglot.tokens.TokenType.ROWS", "modulename": "sqlglot.tokens", "qualname": "TokenType.ROWS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ROWS: 'ROWS'>"}, "sqlglot.tokens.TokenType.SEED": {"fullname": "sqlglot.tokens.TokenType.SEED", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEED: 'SEED'>"}, "sqlglot.tokens.TokenType.SELECT": {"fullname": "sqlglot.tokens.TokenType.SELECT", "modulename": "sqlglot.tokens", "qualname": "TokenType.SELECT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SELECT: 'SELECT'>"}, "sqlglot.tokens.TokenType.SEMI": {"fullname": "sqlglot.tokens.TokenType.SEMI", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMI", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMI: 'SEMI'>"}, "sqlglot.tokens.TokenType.SEPARATOR": {"fullname": "sqlglot.tokens.TokenType.SEPARATOR", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEPARATOR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEPARATOR: 'SEPARATOR'>"}, "sqlglot.tokens.TokenType.SERDE_PROPERTIES": {"fullname": "sqlglot.tokens.TokenType.SERDE_PROPERTIES", "modulename": "sqlglot.tokens", "qualname": "TokenType.SERDE_PROPERTIES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SERDE_PROPERTIES: 'SERDE_PROPERTIES'>"}, "sqlglot.tokens.TokenType.SET": {"fullname": "sqlglot.tokens.TokenType.SET", "modulename": "sqlglot.tokens", "qualname": "TokenType.SET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SET: 'SET'>"}, "sqlglot.tokens.TokenType.SHOW": {"fullname": "sqlglot.tokens.TokenType.SHOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.SHOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SHOW: 'SHOW'>"}, "sqlglot.tokens.TokenType.SIMILAR_TO": {"fullname": "sqlglot.tokens.TokenType.SIMILAR_TO", "modulename": "sqlglot.tokens", "qualname": "TokenType.SIMILAR_TO", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SIMILAR_TO: 'SIMILAR_TO'>"}, "sqlglot.tokens.TokenType.SOME": {"fullname": "sqlglot.tokens.TokenType.SOME", "modulename": "sqlglot.tokens", "qualname": "TokenType.SOME", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SOME: 'SOME'>"}, "sqlglot.tokens.TokenType.SORTKEY": {"fullname": "sqlglot.tokens.TokenType.SORTKEY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORTKEY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORTKEY: 'SORTKEY'>"}, "sqlglot.tokens.TokenType.SORT_BY": {"fullname": "sqlglot.tokens.TokenType.SORT_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORT_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORT_BY: 'SORT_BY'>"}, "sqlglot.tokens.TokenType.STRUCT": {"fullname": "sqlglot.tokens.TokenType.STRUCT", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRUCT: 'STRUCT'>"}, "sqlglot.tokens.TokenType.TABLE_SAMPLE": {"fullname": "sqlglot.tokens.TokenType.TABLE_SAMPLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TABLE_SAMPLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>"}, "sqlglot.tokens.TokenType.TEMPORARY": {"fullname": "sqlglot.tokens.TokenType.TEMPORARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.TEMPORARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TEMPORARY: 'TEMPORARY'>"}, "sqlglot.tokens.TokenType.TOP": {"fullname": "sqlglot.tokens.TokenType.TOP", "modulename": "sqlglot.tokens", "qualname": "TokenType.TOP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TOP: 'TOP'>"}, "sqlglot.tokens.TokenType.THEN": {"fullname": "sqlglot.tokens.TokenType.THEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.THEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.THEN: 'THEN'>"}, "sqlglot.tokens.TokenType.TRAILING": {"fullname": "sqlglot.tokens.TokenType.TRAILING", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRAILING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRAILING: 'TRAILING'>"}, "sqlglot.tokens.TokenType.TRUE": {"fullname": "sqlglot.tokens.TokenType.TRUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRUE: 'TRUE'>"}, "sqlglot.tokens.TokenType.UNBOUNDED": {"fullname": "sqlglot.tokens.TokenType.UNBOUNDED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNBOUNDED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNBOUNDED: 'UNBOUNDED'>"}, "sqlglot.tokens.TokenType.UNCACHE": {"fullname": "sqlglot.tokens.TokenType.UNCACHE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNCACHE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNCACHE: 'UNCACHE'>"}, "sqlglot.tokens.TokenType.UNION": {"fullname": "sqlglot.tokens.TokenType.UNION", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNION: 'UNION'>"}, "sqlglot.tokens.TokenType.UNLOGGED": {"fullname": "sqlglot.tokens.TokenType.UNLOGGED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNLOGGED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNLOGGED: 'UNLOGGED'>"}, "sqlglot.tokens.TokenType.UNNEST": {"fullname": "sqlglot.tokens.TokenType.UNNEST", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNNEST", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNNEST: 'UNNEST'>"}, "sqlglot.tokens.TokenType.UNPIVOT": {"fullname": "sqlglot.tokens.TokenType.UNPIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNPIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNPIVOT: 'UNPIVOT'>"}, "sqlglot.tokens.TokenType.UPDATE": {"fullname": "sqlglot.tokens.TokenType.UPDATE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UPDATE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UPDATE: 'UPDATE'>"}, "sqlglot.tokens.TokenType.USE": {"fullname": "sqlglot.tokens.TokenType.USE", "modulename": "sqlglot.tokens", "qualname": "TokenType.USE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USE: 'USE'>"}, "sqlglot.tokens.TokenType.USING": {"fullname": "sqlglot.tokens.TokenType.USING", "modulename": "sqlglot.tokens", "qualname": "TokenType.USING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USING: 'USING'>"}, "sqlglot.tokens.TokenType.VALUES": {"fullname": "sqlglot.tokens.TokenType.VALUES", "modulename": "sqlglot.tokens", "qualname": "TokenType.VALUES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VALUES: 'VALUES'>"}, "sqlglot.tokens.TokenType.VIEW": {"fullname": "sqlglot.tokens.TokenType.VIEW", "modulename": "sqlglot.tokens", "qualname": "TokenType.VIEW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VIEW: 'VIEW'>"}, "sqlglot.tokens.TokenType.VOLATILE": {"fullname": "sqlglot.tokens.TokenType.VOLATILE", "modulename": "sqlglot.tokens", "qualname": "TokenType.VOLATILE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VOLATILE: 'VOLATILE'>"}, "sqlglot.tokens.TokenType.WHEN": {"fullname": "sqlglot.tokens.TokenType.WHEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHEN: 'WHEN'>"}, "sqlglot.tokens.TokenType.WHERE": {"fullname": "sqlglot.tokens.TokenType.WHERE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHERE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHERE: 'WHERE'>"}, "sqlglot.tokens.TokenType.WINDOW": {"fullname": "sqlglot.tokens.TokenType.WINDOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.WINDOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WINDOW: 'WINDOW'>"}, "sqlglot.tokens.TokenType.WITH": {"fullname": "sqlglot.tokens.TokenType.WITH", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH: 'WITH'>"}, "sqlglot.tokens.TokenType.WITH_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_TIME_ZONE: 'WITH_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_LOCAL_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_LOCAL_TIME_ZONE: 'WITH_LOCAL_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITHIN_GROUP": {"fullname": "sqlglot.tokens.TokenType.WITHIN_GROUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHIN_GROUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHIN_GROUP: 'WITHIN_GROUP'>"}, "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHOUT_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHOUT_TIME_ZONE: 'WITHOUT_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.UNIQUE": {"fullname": "sqlglot.tokens.TokenType.UNIQUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNIQUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNIQUE: 'UNIQUE'>"}, "sqlglot.tokens.Token": {"fullname": "sqlglot.tokens.Token", "modulename": "sqlglot.tokens", "qualname": "Token", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Token.__init__": {"fullname": "sqlglot.tokens.Token.__init__", "modulename": "sqlglot.tokens", "qualname": "Token.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttoken_type: sqlglot.tokens.TokenType,\ttext: str,\tline: int = 1,\tcol: int = 1,\tend: int = 0,\tcomments: List[str] = [])"}, "sqlglot.tokens.Token.number": {"fullname": "sqlglot.tokens.Token.number", "modulename": "sqlglot.tokens", "qualname": "Token.number", "kind": "function", "doc": "

Returns a NUMBER token with number as its text.

\n", "signature": "(cls, number: int) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.string": {"fullname": "sqlglot.tokens.Token.string", "modulename": "sqlglot.tokens", "qualname": "Token.string", "kind": "function", "doc": "

Returns a STRING token with string as its text.

\n", "signature": "(cls, string: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.identifier": {"fullname": "sqlglot.tokens.Token.identifier", "modulename": "sqlglot.tokens", "qualname": "Token.identifier", "kind": "function", "doc": "

Returns an IDENTIFIER token with identifier as its text.

\n", "signature": "(cls, identifier: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.var": {"fullname": "sqlglot.tokens.Token.var", "modulename": "sqlglot.tokens", "qualname": "Token.var", "kind": "function", "doc": "

Returns an VAR token with var as its text.

\n", "signature": "(cls, var: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.start": {"fullname": "sqlglot.tokens.Token.start", "modulename": "sqlglot.tokens", "qualname": "Token.start", "kind": "variable", "doc": "

Returns the start of the token.

\n", "annotation": ": int"}, "sqlglot.tokens.Tokenizer": {"fullname": "sqlglot.tokens.Tokenizer", "modulename": "sqlglot.tokens", "qualname": "Tokenizer", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Tokenizer.reset": {"fullname": "sqlglot.tokens.Tokenizer.reset", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.reset", "kind": "function", "doc": "

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer.tokenize": {"fullname": "sqlglot.tokens.Tokenizer.tokenize", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.tokenize", "kind": "function", "doc": "

Returns a list of tokens corresponding to the SQL string sql.

\n", "signature": "(self, sql: str) -> List[sqlglot.tokens.Token]:", "funcdef": "def"}, "sqlglot.transforms": {"fullname": "sqlglot.transforms", "modulename": "sqlglot.transforms", "kind": "module", "doc": "

\n"}, "sqlglot.transforms.unalias_group": {"fullname": "sqlglot.transforms.unalias_group", "modulename": "sqlglot.transforms", "qualname": "unalias_group", "kind": "function", "doc": "

Replace references to select aliases in GROUP BY clauses.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT a AS b FROM x GROUP BY b").transform(unalias_group).sql()\n'SELECT a AS b FROM x GROUP BY 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_distinct_on": {"fullname": "sqlglot.transforms.eliminate_distinct_on", "modulename": "sqlglot.transforms", "qualname": "eliminate_distinct_on", "kind": "function", "doc": "

Convert SELECT DISTINCT ON statements to a subquery with a window function.

\n\n

This is useful for dialects that don't support SELECT DISTINCT ON but support window functions.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_qualify": {"fullname": "sqlglot.transforms.eliminate_qualify", "modulename": "sqlglot.transforms", "qualname": "eliminate_qualify", "kind": "function", "doc": "

Convert SELECT statements that contain the QUALIFY clause into subqueries, filtered equivalently.

\n\n

The idea behind this transformation can be seen in Snowflake's documentation for QUALIFY:\nhttps://docs.snowflake.com/en/sql-reference/constructs/qualify

\n\n

Some dialects don't support window functions in the WHERE clause, so we need to include them as\nprojections in the subquery, in order to refer to them in the outer filter using aliases. Also,\nif a column is referenced in the QUALIFY clause but is not selected, we need to include it too,\notherwise we won't be able to refer to it in the outer query's WHERE clause.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_precision_parameterized_types": {"fullname": "sqlglot.transforms.remove_precision_parameterized_types", "modulename": "sqlglot.transforms", "qualname": "remove_precision_parameterized_types", "kind": "function", "doc": "

Some dialects only allow the precision for parameterized types to be defined in the DDL and not in\nother expressions. This transforms removes the precision from parameterized types in expressions.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.unnest_to_explode": {"fullname": "sqlglot.transforms.unnest_to_explode", "modulename": "sqlglot.transforms", "qualname": "unnest_to_explode", "kind": "function", "doc": "

Convert cross join unnest into lateral view explode (used in presto -> hive).

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.explode_to_unnest": {"fullname": "sqlglot.transforms.explode_to_unnest", "modulename": "sqlglot.transforms", "qualname": "explode_to_unnest", "kind": "function", "doc": "

Convert explode/posexplode into unnest (used in hive -> presto).

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_target_from_merge": {"fullname": "sqlglot.transforms.remove_target_from_merge", "modulename": "sqlglot.transforms", "qualname": "remove_target_from_merge", "kind": "function", "doc": "

Remove table refs from columns in when statements.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.preprocess": {"fullname": "sqlglot.transforms.preprocess", "modulename": "sqlglot.transforms", "qualname": "preprocess", "kind": "function", "doc": "

Creates a new transform by chaining a sequence of transformations and converts the resulting\nexpression to SQL, using an appropriate Generator.TRANSFORMS function.

\n\n
Arguments:
\n\n
    \n
  • transforms: sequence of transform functions. These will be called in order.
  • \n
\n\n
Returns:
\n\n
\n

Function that can be used as a generator transform.

\n
\n", "signature": "(\ttransforms: List[Callable[[sqlglot.expressions.Expression], sqlglot.expressions.Expression]]) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.trie": {"fullname": "sqlglot.trie", "modulename": "sqlglot.trie", "kind": "module", "doc": "

\n"}, "sqlglot.trie.new_trie": {"fullname": "sqlglot.trie.new_trie", "modulename": "sqlglot.trie", "qualname": "new_trie", "kind": "function", "doc": "

Creates a new trie out of a collection of keywords.

\n\n

The trie is represented as a sequence of nested dictionaries keyed by either single character\nstrings, or by 0, which is used to designate that a keyword is in the trie.

\n\n
Example:
\n\n
\n
\n
>>> new_trie(["bla", "foo", "blab"])\n{'b': {'l': {'a': {0: True, 'b': {0: True}}}}, 'f': {'o': {'o': {0: True}}}}\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • keywords: the keywords to create the trie from.
  • \n
  • trie: a trie to mutate instead of creating a new one
  • \n
\n\n
Returns:
\n\n
\n

The trie corresponding to keywords.

\n
\n", "signature": "(\tkeywords: Iterable[Sequence[Hashable]],\ttrie: Optional[Dict] = None) -> Dict:", "funcdef": "def"}, "sqlglot.trie.in_trie": {"fullname": "sqlglot.trie.in_trie", "modulename": "sqlglot.trie", "qualname": "in_trie", "kind": "function", "doc": "

Checks whether a key is in a trie.

\n\n
Examples:
\n\n
\n
\n
>>> in_trie(new_trie(["cat"]), "bob")\n(0, {'c': {'a': {'t': {0: True}}}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "ca")\n(1, {'t': {0: True}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "cat")\n(2, {0: True})\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • trie: the trie to be searched.
  • \n
  • key: the target key.
  • \n
\n\n
Returns:
\n\n
\n

A pair (value, subtrie), where subtrie is the sub-trie we get at the point where the search stops, and value\n is either 0 (search was unsuccessful), 1 (value is a prefix of a keyword in trie) or 2 (key is intrie`).

\n
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"bases", "doc"], "ref": "fullname", "documentStore": {"docs": {"sqlglot": {"fullname": "sqlglot", "modulename": "sqlglot", "kind": "module", "doc": "

\"SQLGlot

\n\n

SQLGlot is a no-dependency SQL parser, transpiler, optimizer, and engine. It can be used to format SQL or translate between 19 different dialects like DuckDB, Presto, Spark, Snowflake, and BigQuery. It aims to read a wide variety of SQL inputs and output syntactically correct SQL in the targeted dialects.

\n\n

It is a very comprehensive generic SQL parser with a robust test suite. It is also quite performant, while being written purely in Python.

\n\n

You can easily customize the parser, analyze queries, traverse expression trees, and programmatically build SQL.

\n\n

Syntax errors are highlighted and dialect incompatibilities can warn or raise depending on configurations. However, it should be noted that SQL validation is not SQLGlot\u2019s goal, so some syntax errors may go unnoticed.

\n\n

Contributions are very welcome in SQLGlot; read the contribution guide to get started!

\n\n

Table of Contents

\n\n\n\n

Install

\n\n

From PyPI:

\n\n
pip3 install sqlglot\n
\n\n

Or with a local checkout:

\n\n
make install\n
\n\n

Requirements for development (optional):

\n\n
make install-dev\n
\n\n

Get in Touch

\n\n

We'd love to hear from you. Join our community Slack channel!

\n\n

Examples

\n\n

Formatting and Transpiling

\n\n

Easily translate from one dialect to another. For example, date/time functions vary from dialects and can be hard to deal with:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT EPOCH_MS(1618088028295)", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
'SELECT FROM_UNIXTIME(1618088028295 / 1000)'\n
\n
\n\n

SQLGlot can even translate custom time formats:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT STRFTIME(x, '%y-%-m-%S')", read="duckdb", write="hive")[0]\n
\n
\n\n
\n
"SELECT DATE_FORMAT(x, 'yy-M-ss')"\n
\n
\n\n

As another example, let's suppose that we want to read in a SQL query that contains a CTE and a cast to REAL, and then transpile it to Spark, which uses backticks for identifiers and FLOAT instead of REAL:

\n\n
\n
import sqlglot\n\nsql = """WITH baz AS (SELECT a, c FROM foo WHERE a = 1) SELECT f.a, b.b, baz.c, CAST("b"."a" AS REAL) d FROM foo f JOIN bar b ON f.a = b.a LEFT JOIN baz ON f.a = baz.a"""\nprint(sqlglot.transpile(sql, write="spark", identify=True, pretty=True)[0])\n
\n
\n\n
\n
WITH `baz` AS (\n  SELECT\n    `a`,\n    `c`\n  FROM `foo`\n  WHERE\n    `a` = 1\n)\nSELECT\n  `f`.`a`,\n  `b`.`b`,\n  `baz`.`c`,\n  CAST(`b`.`a` AS FLOAT) AS `d`\nFROM `foo` AS `f`\nJOIN `bar` AS `b`\n  ON `f`.`a` = `b`.`a`\nLEFT JOIN `baz`\n  ON `f`.`a` = `baz`.`a`\n
\n
\n\n

Comments are also preserved in a best-effort basis when transpiling SQL code:

\n\n
\n
sql = """\n/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), # comment 3\n  y               -- comment 4\nFROM\n  bar /* comment 5 */,\n  tbl #          comment 6\n"""\n\nprint(sqlglot.transpile(sql, read='mysql', pretty=True)[0])\n
\n
\n\n
\n
/* multi\n   line\n   comment\n*/\nSELECT\n  tbl.cola /* comment 1 */ + tbl.colb /* comment 2 */,\n  CAST(x AS INT), /* comment 3 */\n  y /* comment 4 */\nFROM bar /* comment 5 */, tbl /*          comment 6 */\n
\n
\n\n

Metadata

\n\n

You can explore SQL with expression helpers to do things like find columns and tables:

\n\n
\n
from sqlglot import parse_one, exp\n\n# print all column references (a and b)\nfor column in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Column):\n    print(column.alias_or_name)\n\n# find all projections in select statements (a and c)\nfor select in parse_one("SELECT a, b + 1 AS c FROM d").find_all(exp.Select):\n    for projection in select.expressions:\n        print(projection.alias_or_name)\n\n# find all tables (x, y, z)\nfor table in parse_one("SELECT * FROM x JOIN y JOIN z").find_all(exp.Table):\n    print(table.name)\n
\n
\n\n

Parser Errors

\n\n

When the parser detects an error in the syntax, it raises a ParserError:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT foo( FROM bar")\n
\n
\n\n
sqlglot.errors.ParseError: Expecting ). Line 1, Col: 13.\n  select foo( FROM bar\n              ~~~~\n
\n\n

Structured syntax errors are accessible for programmatic use:

\n\n
\n
import sqlglot\ntry:\n    sqlglot.transpile("SELECT foo( FROM bar")\nexcept sqlglot.errors.ParseError as e:\n    print(e.errors)\n
\n
\n\n
\n
[{\n  'description': 'Expecting )',\n  'line': 1,\n  'col': 13,\n  'start_context': 'SELECT foo( ',\n  'highlight': 'FROM',\n  'end_context': ' bar'\n}]\n
\n
\n\n

Unsupported Errors

\n\n

Presto APPROX_DISTINCT supports the accuracy argument which is not supported in Hive:

\n\n
\n
import sqlglot\nsqlglot.transpile("SELECT APPROX_DISTINCT(a, 0.1) FROM foo", read="presto", write="hive")\n
\n
\n\n
\n
APPROX_COUNT_DISTINCT does not support accuracy\n'SELECT APPROX_COUNT_DISTINCT(a) FROM foo'\n
\n
\n\n

Build and Modify SQL

\n\n

SQLGlot supports incrementally building sql expressions:

\n\n
\n
from sqlglot import select, condition\n\nwhere = condition("x=1").and_("y=1")\nselect("*").from_("y").where(where).sql()\n
\n
\n\n
\n
'SELECT * FROM y WHERE x = 1 AND y = 1'\n
\n
\n\n

You can also modify a parsed tree:

\n\n
\n
from sqlglot import parse_one\nparse_one("SELECT x FROM y").from_("z").sql()\n
\n
\n\n
\n
'SELECT x FROM y, z'\n
\n
\n\n

There is also a way to recursively transform the parsed tree by applying a mapping function to each tree node:

\n\n
\n
from sqlglot import exp, parse_one\n\nexpression_tree = parse_one("SELECT a FROM x")\n\ndef transformer(node):\n    if isinstance(node, exp.Column) and node.name == "a":\n        return parse_one("FUN(a)")\n    return node\n\ntransformed_tree = expression_tree.transform(transformer)\ntransformed_tree.sql()\n
\n
\n\n
\n
'SELECT FUN(a) FROM x'\n
\n
\n\n

SQL Optimizer

\n\n

SQLGlot can rewrite queries into an \"optimized\" form. It performs a variety of techniques to create a new canonical AST. This AST can be used to standardize queries or provide the foundations for implementing an actual engine. For example:

\n\n
\n
import sqlglot\nfrom sqlglot.optimizer import optimize\n\nprint(\n    optimize(\n        sqlglot.parse_one("""\n            SELECT A OR (B OR (C AND D))\n            FROM x\n            WHERE Z = date '2021-01-01' + INTERVAL '1' month OR 1 = 0\n        """),\n        schema={"x": {"A": "INT", "B": "INT", "C": "INT", "D": "INT", "Z": "STRING"}}\n    ).sql(pretty=True)\n)\n
\n
\n\n
\n
SELECT\n  (\n    "x"."a" OR "x"."b" OR "x"."c"\n  ) AND (\n    "x"."a" OR "x"."b" OR "x"."d"\n  ) AS "_col_0"\nFROM "x" AS "x"\nWHERE\n  CAST("x"."z" AS DATE) = CAST('2021-02-01' AS DATE)\n
\n
\n\n

AST Introspection

\n\n

You can see the AST version of the sql by calling repr:

\n\n
\n
from sqlglot import parse_one\nprint(repr(parse_one("SELECT a + 1 AS z")))\n
\n
\n\n
\n
(SELECT expressions:\n  (ALIAS this:\n    (ADD this:\n      (COLUMN this:\n        (IDENTIFIER this: a, quoted: False)), expression:\n      (LITERAL this: 1, is_string: False)), alias:\n    (IDENTIFIER this: z, quoted: False)))\n
\n
\n\n

AST Diff

\n\n

SQLGlot can calculate the difference between two expressions and output changes in a form of a sequence of actions needed to transform a source expression into a target one:

\n\n
\n
from sqlglot import diff, parse_one\ndiff(parse_one("SELECT a + b, c, d"), parse_one("SELECT c, a - b, d"))\n
\n
\n\n
\n
[\n  Remove(expression=(ADD this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Insert(expression=(SUB this:\n    (COLUMN this:\n      (IDENTIFIER this: a, quoted: False)), expression:\n    (COLUMN this:\n      (IDENTIFIER this: b, quoted: False)))),\n  Move(expression=(COLUMN this:\n    (IDENTIFIER this: c, quoted: False))),\n  Keep(source=(IDENTIFIER this: b, quoted: False), target=(IDENTIFIER this: b, quoted: False)),\n  ...\n]\n
\n
\n\n

See also: Semantic Diff for SQL.

\n\n

Custom Dialects

\n\n

Dialects can be added by subclassing Dialect:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n\nprint(Dialect["custom"])\n
\n
\n\n
<class '__main__.Custom'>\n
\n\n

SQL Execution

\n\n

One can even interpret SQL queries using SQLGlot, where the tables are represented as Python dictionaries. Although the engine is not very fast (it's not supposed to be) and is in a relatively early stage of development, it can be useful for unit testing and running SQL natively across Python objects. Additionally, the foundation can be easily integrated with fast compute kernels (arrow, pandas). Below is an example showcasing the execution of a SELECT expression that involves aggregations and JOINs:

\n\n
\n
from sqlglot.executor import execute\n\ntables = {\n    "sushi": [\n        {"id": 1, "price": 1.0},\n        {"id": 2, "price": 2.0},\n        {"id": 3, "price": 3.0},\n    ],\n    "order_items": [\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 1, "order_id": 1},\n        {"sushi_id": 2, "order_id": 1},\n        {"sushi_id": 3, "order_id": 2},\n    ],\n    "orders": [\n        {"id": 1, "user_id": 1},\n        {"id": 2, "user_id": 2},\n    ],\n}\n\nexecute(\n    """\n    SELECT\n      o.user_id,\n      SUM(s.price) AS price\n    FROM orders o\n    JOIN order_items i\n      ON o.id = i.order_id\n    JOIN sushi s\n      ON i.sushi_id = s.id\n    GROUP BY o.user_id\n    """,\n    tables=tables\n)\n
\n
\n\n
\n
user_id price\n      1   4.0\n      2   3.0\n
\n
\n\n

See also: Writing a Python SQL engine from scratch.

\n\n

Used By

\n\n\n\n

Documentation

\n\n

SQLGlot uses pdoc to serve its API documentation:

\n\n
make docs-serve\n
\n\n

Run Tests and Lint

\n\n
make check  # Set SKIP_INTEGRATION=1 to skip integration tests\n
\n\n

Benchmarks

\n\n

Benchmarks run on Python 3.10.5 in seconds.

\n\n\n\n\n \n \n \n \n \n \n \n\n\n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n \n \n \n \n \n \n \n\n\n
Querysqlglotsqlfluffsqltreesqlparsemoz_sql_parsersqloxide
tpch0.01308 (1.0)1.60626 (122.7)0.01168 (0.893)0.04958 (3.791)0.08543 (6.531)0.00136 (0.104)
short0.00109 (1.0)0.14134 (129.2)0.00099 (0.906)0.00342 (3.131)0.00652 (5.970)8.76E-5 (0.080)
long0.01399 (1.0)2.12632 (151.9)0.01126 (0.805)0.04410 (3.151)0.06671 (4.767)0.00107 (0.076)
crazy0.03969 (1.0)24.3777 (614.1)0.03917 (0.987)11.7043 (294.8)1.03280 (26.02)0.00625 (0.157)
\n\n

Optional Dependencies

\n\n

SQLGlot uses dateutil to simplify literal timedelta expressions. The optimizer will not simplify expressions like the following if the module cannot be found:

\n\n
\n
x + interval '1' month\n
\n
\n\n
\n"}, "sqlglot.pretty": {"fullname": "sqlglot.pretty", "modulename": "sqlglot", "qualname": "pretty", "kind": "variable", "doc": "

Whether to format generated SQL by default.

\n", "default_value": "False"}, "sqlglot.schema": {"fullname": "sqlglot.schema", "modulename": "sqlglot.schema", "kind": "module", "doc": "

\n"}, "sqlglot.parse": {"fullname": "sqlglot.parse", "modulename": "sqlglot", "qualname": "parse", "kind": "function", "doc": "

Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The resulting syntax tree collection.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parse_one": {"fullname": "sqlglot.parse_one", "modulename": "sqlglot", "qualname": "parse_one", "kind": "function", "doc": "

Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to parse.
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • into: the SQLGlot Expression to parse into.
  • \n
  • **opts: other sqlglot.parser.Parser options.
  • \n
\n\n
Returns:
\n\n
\n

The syntax tree for the first parsed statement.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transpile": {"fullname": "sqlglot.transpile", "modulename": "sqlglot", "qualname": "transpile", "kind": "function", "doc": "

Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed\nto conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • sql: the SQL code string to transpile.
  • \n
  • read: the source dialect used to parse the input string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • write: the target dialect into which the input should be transformed (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • identity: if set to True and if the target dialect is not specified the source dialect will be used as both:\nthe source and the target dialect.
  • \n
  • error_level: the desired error level of the parser.
  • \n
  • **opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The list of transpiled SQL statements.

\n
\n", "signature": "(\tsql: str,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\twrite: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tidentity: bool = True,\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\t**opts) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe": {"fullname": "sqlglot.dataframe", "modulename": "sqlglot.dataframe", "kind": "module", "doc": "

PySpark DataFrame SQL Generator

\n\n

This is a drop-in replacement for the PySpark DataFrame API that will generate SQL instead of executing DataFrame operations directly. This, when combined with the transpiling support in SQLGlot, allows one to write PySpark DataFrame code and execute it on other engines like DuckDB, Presto, Spark, Snowflake, and BigQuery.

\n\n

Currently many of the common operations are covered and more functionality will be added over time. Please open an issue or PR with your feedback or contribution to help influence what should be prioritized next and make sure your use case is properly supported.

\n\n

How to use

\n\n

Instructions

\n\n
    \n
  • Install SQLGlot and that is all that is required to just generate SQL. The examples show generating SQL and then executing that SQL on a specific engine and that will require that engine's client library.
  • \n
  • Find/replace all from pyspark.sql with from sqlglot.dataframe.
  • \n
  • Prior to any spark.read.table or spark.table run sqlglot.schema.add_table('<table_name>', <column_structure>).\n
      \n
    • The column structure can be defined the following ways:\n
        \n
      • Dictionary where the keys are column names and values are string of the Spark SQL type name.\n
          \n
        • Ex: {'cola': 'string', 'colb': 'int'}
        • \n
      • \n
      • PySpark DataFrame StructType similar to when using createDataFrame.\n
          \n
        • Ex: StructType([StructField('cola', StringType()), StructField('colb', IntegerType())])
        • \n
      • \n
      • A string of names and types similar to what is supported in createDataFrame.\n
          \n
        • Ex: cola: STRING, colb: INT
        • \n
      • \n
      • [Not Recommended] A list of string column names without type.\n
          \n
        • Ex: ['cola', 'colb']
        • \n
        • The lack of types may limit functionality in future releases.
        • \n
      • \n
    • \n
    • See Registering Custom Schema for information on how to skip this step if the information is stored externally.
    • \n
  • \n
  • Add .sql(pretty=True) to your final DataFrame command to return a list of sql statements to run that command.\n
      \n
    • In most cases a single SQL statement is returned. Currently the only exception is when caching DataFrames which isn't supported in other dialects.
    • \n
    • Spark is the default output dialect. See dialects for a full list of dialects.
    • \n
    • Ex: .sql(pretty=True, dialect='bigquery')
    • \n
  • \n
\n\n

Examples

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\n\nsqlglot.schema.add_table('employee', {\n  'employee_id': 'INT',\n  'fname': 'STRING',\n  'lname': 'STRING',\n  'age': 'INT',\n})  # Register the table structure prior to reading from the table\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))  # Spark will be the dialect used by default\n
\n
\n\n
SELECT\n  `employee`.`age` AS `age`,\n  COUNT(DISTINCT `employee`.`employee_id`) AS `num_employees`\nFROM `employee` AS `employee`\nGROUP BY\n  `employee`.`age`\n
\n\n

Registering Custom Schema Class

\n\n

The step of adding sqlglot.schema.add_table can be skipped if you have the column structure stored externally like in a file or from an external metadata table. This can be done by writing a class that implements the sqlglot.schema.Schema abstract class and then assigning that class to sqlglot.schema.

\n\n
\n
import sqlglot\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import functions as F\nfrom sqlglot.schema import Schema\n\n\nclass ExternalSchema(Schema):\n  ...\n\nsqlglot.schema = ExternalSchema()\n\nspark = SparkSession()\n\ndf = (\n    spark\n    .table('employee')\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees")) \n)\n\nprint(df.sql(pretty=True))\n
\n
\n\n

Example Implementations

\n\n

Bigquery

\n\n
\n
from google.cloud import bigquery\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\nclient = bigquery.Client()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="bigquery")\n)\n\nresult = None\nfor sql in sql_statements:\n  result = client.query(sql)\n\nassert result is not None\nfor row in client.query(result):\n    print(f"Age: {row['age']}, Num Employees: {row['num_employees']}")\n
\n
\n\n

Snowflake

\n\n
\n
import os\n\nimport snowflake.connector\nfrom sqlglot.dataframe.session import SparkSession\nfrom sqlglot.dataframe import types\nfrom sqlglot.dataframe import functions as F\n\nctx = snowflake.connector.connect(\n    user=os.environ["SNOWFLAKE_USER"],\n    password=os.environ["SNOWFLAKE_PASS"],\n    account=os.environ["SNOWFLAKE_ACCOUNT"]\n)\ncs = ctx.cursor()\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("lname")).alias("num_employees"))\n    .sql(dialect="snowflake")\n)\n\ntry:\n    for sql in sql_statements:\n        cs.execute(sql)\n    results = cs.fetchall()\n    for row in results:\n        print(f"Age: {row[0]}, Num Employees: {row[1]}")\nfinally:\n    cs.close()\nctx.close()\n
\n
\n\n

Spark

\n\n
\n
from pyspark.sql.session import SparkSession as PySparkSession\nfrom sqlglot.dataframe.sql.session import SparkSession\nfrom sqlglot.dataframe.sql import types\nfrom sqlglot.dataframe.sql import functions as F\n\ndata = [\n    (1, "Jack", "Shephard", 34),\n    (2, "John", "Locke", 48),\n    (3, "Kate", "Austen", 34),\n    (4, "Claire", "Littleton", 22),\n    (5, "Hugo", "Reyes", 26),\n]\nschema = types.StructType([\n    types.StructField('employee_id', types.IntegerType(), False),\n    types.StructField('fname', types.StringType(), False),\n    types.StructField('lname', types.StringType(), False),\n    types.StructField('age', types.IntegerType(), False),\n])\n\nsql_statements = (\n    SparkSession()\n    .createDataFrame(data, schema)\n    .groupBy(F.col("age"))\n    .agg(F.countDistinct(F.col("employee_id")).alias("num_employees"))\n    .sql(dialect="spark")\n)\n\npyspark = PySparkSession.builder.master("local[*]").getOrCreate()\n\ndf = None\nfor sql in sql_statements:\n    df = pyspark.sql(sql)\n\nassert df is not None\ndf.show()\n
\n
\n\n

Unsupportable Operations

\n\n

Any operation that lacks a way to represent it in SQL cannot be supported by this tool. An example of this would be rdd operations. Since the DataFrame API though is mostly modeled around SQL concepts most operations can be supported.

\n"}, "sqlglot.dataframe.sql": {"fullname": "sqlglot.dataframe.sql", "modulename": "sqlglot.dataframe.sql", "kind": "module", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession": {"fullname": "sqlglot.dataframe.sql.SparkSession", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.SparkSession.table": {"fullname": "sqlglot.dataframe.sql.SparkSession.table", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.createDataFrame": {"fullname": "sqlglot.dataframe.sql.SparkSession.createDataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.createDataFrame", "kind": "function", "doc": "

\n", "signature": "(\tself,\tdata: Sequence[Union[Dict[str, <MagicMock id='140482330521808'>], List[<MagicMock id='140482330521808'>], Tuple]],\tschema: Optional[<MagicMock id='140482330535600'>] = None,\tsamplingRatio: Optional[float] = None,\tverifySchema: bool = False) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.SparkSession.sql": {"fullname": "sqlglot.dataframe.sql.SparkSession.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "SparkSession.sql", "kind": "function", "doc": "

\n", "signature": "(self, sqlQuery: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame": {"fullname": "sqlglot.dataframe.sql.DataFrame", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrame.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrame.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.__init__", "kind": "function", "doc": "

\n", "signature": "(\tspark: <MagicMock id='140482335596384'>,\texpression: sqlglot.expressions.Select,\tbranch_id: Optional[str] = None,\tsequence_id: Optional[str] = None,\tlast_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>,\tpending_hints: Optional[List[sqlglot.expressions.Expression]] = None,\toutput_expression_container: Optional[<MagicMock id='140482335520656'>] = None,\t**kwargs)"}, "sqlglot.dataframe.sql.DataFrame.sql": {"fullname": "sqlglot.dataframe.sql.DataFrame.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sql", "kind": "function", "doc": "

\n", "signature": "(self, dialect='spark', optimize=True, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.copy": {"fullname": "sqlglot.dataframe.sql.DataFrame.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.select": {"fullname": "sqlglot.dataframe.sql.DataFrame.select", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.select", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.alias": {"fullname": "sqlglot.dataframe.sql.DataFrame.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.where": {"fullname": "sqlglot.dataframe.sql.DataFrame.where", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.where", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.filter": {"fullname": "sqlglot.dataframe.sql.DataFrame.filter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.filter", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolumn: Union[sqlglot.dataframe.sql.column.Column, bool],\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.groupBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.groupBy", "kind": "function", "doc": "

\n", "signature": "(self, *cols, **kwargs) -> sqlglot.dataframe.sql.group.GroupedData:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.agg": {"fullname": "sqlglot.dataframe.sql.DataFrame.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.agg", "kind": "function", "doc": "

\n", "signature": "(self, *exprs, **kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.join": {"fullname": "sqlglot.dataframe.sql.DataFrame.join", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.join", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother_df: sqlglot.dataframe.sql.dataframe.DataFrame,\ton: Union[str, List[str], sqlglot.dataframe.sql.column.Column, List[sqlglot.dataframe.sql.column.Column]],\thow: str = 'inner',\t**kwargs) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.orderBy": {"fullname": "sqlglot.dataframe.sql.DataFrame.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.orderBy", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.sort": {"fullname": "sqlglot.dataframe.sql.DataFrame.sort", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.sort", "kind": "function", "doc": "

This implementation lets any ordered columns take priority over whatever is provided in ascending. Spark\nhas irregular behavior and can result in runtime errors. Users shouldn't be mixing the two anyways so this\nis unlikely to come up.

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column],\tascending: Union[Any, List[Any], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.union": {"fullname": "sqlglot.dataframe.sql.DataFrame.union", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.union", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.unionByName": {"fullname": "sqlglot.dataframe.sql.DataFrame.unionByName", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.unionByName", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame,\tallowMissingColumns: bool = False):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersect": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersect", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersect", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.intersectAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.intersectAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.intersectAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.exceptAll": {"fullname": "sqlglot.dataframe.sql.DataFrame.exceptAll", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.exceptAll", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: sqlglot.dataframe.sql.dataframe.DataFrame) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.distinct": {"fullname": "sqlglot.dataframe.sql.DataFrame.distinct", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.distinct", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropDuplicates": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropDuplicates", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropDuplicates", "kind": "function", "doc": "

\n", "signature": "(self, subset: Optional[List[str]] = None):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.dropna": {"fullname": "sqlglot.dataframe.sql.DataFrame.dropna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.dropna", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.fillna": {"fullname": "sqlglot.dataframe.sql.DataFrame.fillna", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.fillna", "kind": "function", "doc": "

Functionality Difference: If you provide a value to replace a null and that type conflicts\nwith the type of the column then PySpark will just ignore your replacement.\nThis will try to cast them to be the same in some cases. So they won't always match.\nBest to not mix types so make sure replacement is the same type as the column

\n\n

Possibility for improvement: Use typeof function to get the type of the column\nand check if it matches the type of the value provided. If not then make it null.

\n", "signature": "(\tself,\tvalue: <MagicMock id='140482330974848'>,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.replace": {"fullname": "sqlglot.dataframe.sql.DataFrame.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[Collection[<MagicMock id='140482330012992'>], <MagicMock id='140482330012992'>, NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumn": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumn", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumn", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcolName: str,\tcol: sqlglot.dataframe.sql.column.Column) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.withColumnRenamed": {"fullname": "sqlglot.dataframe.sql.DataFrame.withColumnRenamed", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.withColumnRenamed", "kind": "function", "doc": "

\n", "signature": "(self, existing: str, new: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.drop": {"fullname": "sqlglot.dataframe.sql.DataFrame.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.limit": {"fullname": "sqlglot.dataframe.sql.DataFrame.limit", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.limit", "kind": "function", "doc": "

\n", "signature": "(self, num: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.hint": {"fullname": "sqlglot.dataframe.sql.DataFrame.hint", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.hint", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*parameters: Union[str, int, NoneType]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.repartition": {"fullname": "sqlglot.dataframe.sql.DataFrame.repartition", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.repartition", "kind": "function", "doc": "

\n", "signature": "(\tself,\tnumPartitions: Union[int, <MagicMock id='140482329596336'>],\t*cols: <MagicMock id='140482329655376'>) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.coalesce": {"fullname": "sqlglot.dataframe.sql.DataFrame.coalesce", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.coalesce", "kind": "function", "doc": "

\n", "signature": "(self, numPartitions: int) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.cache": {"fullname": "sqlglot.dataframe.sql.DataFrame.cache", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.cache", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrame.persist": {"fullname": "sqlglot.dataframe.sql.DataFrame.persist", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrame.persist", "kind": "function", "doc": "

Storage Level Options: https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-aux-cache-cache-table.html

\n", "signature": "(\tself,\tstorageLevel: str = 'MEMORY_AND_DISK_SER') -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData": {"fullname": "sqlglot.dataframe.sql.GroupedData", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.GroupedData.__init__": {"fullname": "sqlglot.dataframe.sql.GroupedData.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tgroup_by_cols: List[sqlglot.dataframe.sql.column.Column],\tlast_op: sqlglot.dataframe.sql.operations.Operation)"}, "sqlglot.dataframe.sql.GroupedData.agg": {"fullname": "sqlglot.dataframe.sql.GroupedData.agg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.agg", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*exprs: Union[sqlglot.dataframe.sql.column.Column, Dict[str, str]]) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.count": {"fullname": "sqlglot.dataframe.sql.GroupedData.count", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.count", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.mean": {"fullname": "sqlglot.dataframe.sql.GroupedData.mean", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.mean", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.avg": {"fullname": "sqlglot.dataframe.sql.GroupedData.avg", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.avg", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.max": {"fullname": "sqlglot.dataframe.sql.GroupedData.max", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.max", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.min": {"fullname": "sqlglot.dataframe.sql.GroupedData.min", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.min", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.sum": {"fullname": "sqlglot.dataframe.sql.GroupedData.sum", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.sum", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.GroupedData.pivot": {"fullname": "sqlglot.dataframe.sql.GroupedData.pivot", "modulename": "sqlglot.dataframe.sql", "qualname": "GroupedData.pivot", "kind": "function", "doc": "

\n", "signature": "(self, *cols: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column": {"fullname": "sqlglot.dataframe.sql.Column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Column.__init__": {"fullname": "sqlglot.dataframe.sql.Column.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression: Union[<MagicMock id='140482331597488'>, sqlglot.expressions.Expression, NoneType])"}, "sqlglot.dataframe.sql.Column.ensure_col": {"fullname": "sqlglot.dataframe.sql.Column.ensure_col", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_col", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tvalue: Union[<MagicMock id='140482329703328'>, sqlglot.expressions.Expression, NoneType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_cols": {"fullname": "sqlglot.dataframe.sql.Column.ensure_cols", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_cols", "kind": "function", "doc": "

\n", "signature": "(\tcls,\targs: List[Union[<MagicMock id='140482330200576'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.column.Column]:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_anonymous_function": {"fullname": "sqlglot.dataframe.sql.Column.invoke_anonymous_function", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_anonymous_function", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140482329857520'>],\tfunc_name: str,\t*args: Optional[<MagicMock id='140482329881584'>]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.invoke_expression_over_column": {"fullname": "sqlglot.dataframe.sql.Column.invoke_expression_over_column", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.invoke_expression_over_column", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tcolumn: Optional[<MagicMock id='140482329799712'>],\tcallable_expression: Callable,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.binary_op": {"fullname": "sqlglot.dataframe.sql.Column.binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140482329769152'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.inverse_binary_op": {"fullname": "sqlglot.dataframe.sql.Column.inverse_binary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.inverse_binary_op", "kind": "function", "doc": "

\n", "signature": "(\tself,\tklass: Callable,\tother: <MagicMock id='140482329759984'>,\t**kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.unary_op": {"fullname": "sqlglot.dataframe.sql.Column.unary_op", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.unary_op", "kind": "function", "doc": "

\n", "signature": "(self, klass: Callable, **kwargs) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ensure_literal": {"fullname": "sqlglot.dataframe.sql.Column.ensure_literal", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ensure_literal", "kind": "function", "doc": "

\n", "signature": "(cls, value) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.copy": {"fullname": "sqlglot.dataframe.sql.Column.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.copy", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.set_table_name": {"fullname": "sqlglot.dataframe.sql.Column.set_table_name", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.set_table_name", "kind": "function", "doc": "

\n", "signature": "(self, table_name: str, copy=False) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.sql": {"fullname": "sqlglot.dataframe.sql.Column.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.alias": {"fullname": "sqlglot.dataframe.sql.Column.alias", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.alias", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc": {"fullname": "sqlglot.dataframe.sql.Column.asc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc": {"fullname": "sqlglot.dataframe.sql.Column.desc", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.asc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.asc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.asc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_first": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_first", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_first", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.desc_nulls_last": {"fullname": "sqlglot.dataframe.sql.Column.desc_nulls_last", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.desc_nulls_last", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.when": {"fullname": "sqlglot.dataframe.sql.Column.when", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.when", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: sqlglot.dataframe.sql.column.Column,\tvalue: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.otherwise": {"fullname": "sqlglot.dataframe.sql.Column.otherwise", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.otherwise", "kind": "function", "doc": "

\n", "signature": "(self, value: Any) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNull": {"fullname": "sqlglot.dataframe.sql.Column.isNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isNotNull": {"fullname": "sqlglot.dataframe.sql.Column.isNotNull", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isNotNull", "kind": "function", "doc": "

\n", "signature": "(self) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.cast": {"fullname": "sqlglot.dataframe.sql.Column.cast", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.cast", "kind": "function", "doc": "

Functionality Difference: PySpark cast accepts a datatype instance of the datatype class\nSqlglot doesn't currently replicate this class so it only accepts a string

\n", "signature": "(self, dataType: Union[str, sqlglot.dataframe.sql.types.DataType]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.startswith": {"fullname": "sqlglot.dataframe.sql.Column.startswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.startswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.endswith": {"fullname": "sqlglot.dataframe.sql.Column.endswith", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.endswith", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[str, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.rlike": {"fullname": "sqlglot.dataframe.sql.Column.rlike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.rlike", "kind": "function", "doc": "

\n", "signature": "(self, regexp: str) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.like": {"fullname": "sqlglot.dataframe.sql.Column.like", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.like", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.ilike": {"fullname": "sqlglot.dataframe.sql.Column.ilike", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.ilike", "kind": "function", "doc": "

\n", "signature": "(self, other: str):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.substr": {"fullname": "sqlglot.dataframe.sql.Column.substr", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.substr", "kind": "function", "doc": "

\n", "signature": "(\tself,\tstartPos: Union[int, sqlglot.dataframe.sql.column.Column],\tlength: Union[int, sqlglot.dataframe.sql.column.Column]) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.isin": {"fullname": "sqlglot.dataframe.sql.Column.isin", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.isin", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140482330346256'>, Iterable[<MagicMock id='140482330346256'>]]):", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.between": {"fullname": "sqlglot.dataframe.sql.Column.between", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.between", "kind": "function", "doc": "

\n", "signature": "(\tself,\tlowerBound: <MagicMock id='140482328352688'>,\tupperBound: <MagicMock id='140482328407168'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.Column.over": {"fullname": "sqlglot.dataframe.sql.Column.over", "modulename": "sqlglot.dataframe.sql", "qualname": "Column.over", "kind": "function", "doc": "

\n", "signature": "(\tself,\twindow: <MagicMock id='140482328481264'>) -> sqlglot.dataframe.sql.column.Column:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.__init__", "kind": "function", "doc": "

\n", "signature": "(df: sqlglot.dataframe.sql.dataframe.DataFrame)"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.drop": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.drop", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.drop", "kind": "function", "doc": "

\n", "signature": "(\tself,\thow: str = 'any',\tthresh: Optional[int] = None,\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.fill": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.fill", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.fill", "kind": "function", "doc": "

\n", "signature": "(\tself,\tvalue: Union[int, bool, float, str, Dict[str, Any]],\tsubset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameNaFunctions.replace": {"fullname": "sqlglot.dataframe.sql.DataFrameNaFunctions.replace", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameNaFunctions.replace", "kind": "function", "doc": "

\n", "signature": "(\tself,\tto_replace: Union[bool, int, float, str, List, Dict],\tvalue: Union[bool, int, float, str, List, NoneType] = None,\tsubset: Union[str, List[str], NoneType] = None) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window": {"fullname": "sqlglot.dataframe.sql.Window", "modulename": "sqlglot.dataframe.sql", "qualname": "Window", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.Window.partitionBy": {"fullname": "sqlglot.dataframe.sql.Window.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140482328980416'>, List[<MagicMock id='140482328980416'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.orderBy": {"fullname": "sqlglot.dataframe.sql.Window.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tcls,\t*cols: Union[<MagicMock id='140482328995408'>, List[<MagicMock id='140482328995408'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rowsBetween": {"fullname": "sqlglot.dataframe.sql.Window.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.Window.rangeBetween": {"fullname": "sqlglot.dataframe.sql.Window.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "Window.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(cls, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec": {"fullname": "sqlglot.dataframe.sql.WindowSpec", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.WindowSpec.__init__": {"fullname": "sqlglot.dataframe.sql.WindowSpec.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression = (WINDOW ))"}, "sqlglot.dataframe.sql.WindowSpec.copy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.copy", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.sql": {"fullname": "sqlglot.dataframe.sql.WindowSpec.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> str:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.partitionBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.partitionBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.partitionBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140482328591472'>, List[<MagicMock id='140482328591472'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.orderBy": {"fullname": "sqlglot.dataframe.sql.WindowSpec.orderBy", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.orderBy", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*cols: Union[<MagicMock id='140482328640480'>, List[<MagicMock id='140482328640480'>]]) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rowsBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rowsBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rowsBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.WindowSpec.rangeBetween": {"fullname": "sqlglot.dataframe.sql.WindowSpec.rangeBetween", "modulename": "sqlglot.dataframe.sql", "qualname": "WindowSpec.rangeBetween", "kind": "function", "doc": "

\n", "signature": "(self, start: int, end: int) -> sqlglot.dataframe.sql.window.WindowSpec:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameReader": {"fullname": "sqlglot.dataframe.sql.DataFrameReader", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameReader.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.__init__", "kind": "function", "doc": "

\n", "signature": "(spark: sqlglot.dataframe.sql.session.SparkSession)"}, "sqlglot.dataframe.sql.DataFrameReader.table": {"fullname": "sqlglot.dataframe.sql.DataFrameReader.table", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameReader.table", "kind": "function", "doc": "

\n", "signature": "(self, tableName: str) -> sqlglot.dataframe.sql.dataframe.DataFrame:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter", "kind": "class", "doc": "

\n"}, "sqlglot.dataframe.sql.DataFrameWriter.__init__": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.__init__", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.__init__", "kind": "function", "doc": "

\n", "signature": "(\tdf: sqlglot.dataframe.sql.dataframe.DataFrame,\tspark: Optional[sqlglot.dataframe.sql.session.SparkSession] = None,\tmode: Optional[str] = None,\tby_name: bool = False)"}, "sqlglot.dataframe.sql.DataFrameWriter.copy": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.copy", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.sql": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.sql", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.sql", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> List[str]:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.mode": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.mode", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.mode", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsaveMode: Optional[str]) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.insertInto": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.insertInto", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.insertInto", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttableName: str,\toverwrite: Optional[bool] = None) -> sqlglot.dataframe.sql.readwriter.DataFrameWriter:", "funcdef": "def"}, "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable": {"fullname": "sqlglot.dataframe.sql.DataFrameWriter.saveAsTable", "modulename": "sqlglot.dataframe.sql", "qualname": "DataFrameWriter.saveAsTable", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\tformat: Optional[str] = None,\tmode: Optional[str] = None):", "funcdef": "def"}, "sqlglot.dialects": {"fullname": "sqlglot.dialects", "modulename": "sqlglot.dialects", "kind": "module", "doc": "

Dialects

\n\n

While there is a SQL standard, most SQL engines support a variation of that standard. This makes it difficult\nto write portable SQL code. SQLGlot bridges all the different variations, called \"dialects\", with an extensible\nSQL transpilation framework.

\n\n

The base sqlglot.dialects.dialect.Dialect class implements a generic dialect that aims to be as universal as possible.

\n\n

Each SQL variation has its own Dialect subclass, extending the corresponding Tokenizer, Parser and Generator\nclasses as needed.

\n\n

Implementing a custom Dialect

\n\n

Consider the following example:

\n\n
\n
from sqlglot import exp\nfrom sqlglot.dialects.dialect import Dialect\nfrom sqlglot.generator import Generator\nfrom sqlglot.tokens import Tokenizer, TokenType\n\n\nclass Custom(Dialect):\n    class Tokenizer(Tokenizer):\n        QUOTES = ["'", '"']\n        IDENTIFIERS = ["`"]\n\n        KEYWORDS = {\n            **Tokenizer.KEYWORDS,\n            "INT64": TokenType.BIGINT,\n            "FLOAT64": TokenType.DOUBLE,\n        }\n\n    class Generator(Generator):\n        TRANSFORMS = {exp.Array: lambda self, e: f"[{self.expressions(e)}]"}\n\n        TYPE_MAPPING = {\n            exp.DataType.Type.TINYINT: "INT64",\n            exp.DataType.Type.SMALLINT: "INT64",\n            exp.DataType.Type.INT: "INT64",\n            exp.DataType.Type.BIGINT: "INT64",\n            exp.DataType.Type.DECIMAL: "NUMERIC",\n            exp.DataType.Type.FLOAT: "FLOAT64",\n            exp.DataType.Type.DOUBLE: "FLOAT64",\n            exp.DataType.Type.BOOLEAN: "BOOL",\n            exp.DataType.Type.TEXT: "STRING",\n        }\n
\n
\n\n

This is a typical example of adding a new dialect implementation in SQLGlot: we specify its identifier and string\ndelimiters, as well as what tokens it uses for its types and how they're associated with SQLGlot types. Since\nthe Expression classes are common for each dialect supported in SQLGlot, we may also need to override the generation\nlogic for some expressions; this is usually done by adding new entries to the TRANSFORMS mapping.

\n\n
\n"}, "sqlglot.dialects.bigquery": {"fullname": "sqlglot.dialects.bigquery", "modulename": "sqlglot.dialects.bigquery", "kind": "module", "doc": "

Supports BigQuery Standard SQL.

\n"}, "sqlglot.dialects.bigquery.BigQuery": {"fullname": "sqlglot.dialects.bigquery.BigQuery", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.bigquery.BigQuery.Tokenizer": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Tokenizer", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.bigquery.BigQuery.Parser": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Parser", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.bigquery.BigQuery.Generator": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.array_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.array_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Array) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.transaction_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.commit_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.commit_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.rollback_sql", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, *_) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.in_unnest_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.in_unnest_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Unnest) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.except_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.except_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.intersect_op", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.bigquery.BigQuery.Generator.with_properties": {"fullname": "sqlglot.dialects.bigquery.BigQuery.Generator.with_properties", "modulename": "sqlglot.dialects.bigquery", "qualname": "BigQuery.Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.clickhouse": {"fullname": "sqlglot.dialects.clickhouse", "modulename": "sqlglot.dialects.clickhouse", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.clickhouse.ClickHouse": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Tokenizer", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.clickhouse.ClickHouse.Parser": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Parser", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql": {"fullname": "sqlglot.dialects.clickhouse.ClickHouse.Generator.cte_sql", "modulename": "sqlglot.dialects.clickhouse", "qualname": "ClickHouse.Generator.cte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.CTE) -> str:", "funcdef": "def"}, "sqlglot.dialects.databricks": {"fullname": "sqlglot.dialects.databricks", "modulename": "sqlglot.dialects.databricks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.databricks.Databricks": {"fullname": "sqlglot.dialects.databricks.Databricks", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark.Spark"}, "sqlglot.dialects.databricks.Databricks.Parser": {"fullname": "sqlglot.dialects.databricks.Databricks.Parser", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Parser"}, "sqlglot.dialects.databricks.Databricks.Generator": {"fullname": "sqlglot.dialects.databricks.Databricks.Generator", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.spark.Spark.Generator"}, "sqlglot.dialects.databricks.Databricks.Tokenizer": {"fullname": "sqlglot.dialects.databricks.Databricks.Tokenizer", "modulename": "sqlglot.dialects.databricks", "qualname": "Databricks.Tokenizer", "kind": "class", "doc": "

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An enumeration.

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\n", "default_value": "<Dialects.TRINO: 'trino'>"}, "sqlglot.dialects.dialect.Dialects.TSQL": {"fullname": "sqlglot.dialects.dialect.Dialects.TSQL", "modulename": "sqlglot.dialects.dialect", "qualname": "Dialects.TSQL", "kind": "variable", "doc": "

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Helper used for time expressions.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • dialect: target sql dialect.
  • \n
  • default: the default format, True being time.
  • \n
\n\n
Returns:
\n\n
\n

A callable that can be used to return the appropriately formatted time expression.

\n
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\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Max) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.count_if_to_sum": {"fullname": "sqlglot.dialects.dialect.count_if_to_sum", "modulename": "sqlglot.dialects.dialect", "qualname": "count_if_to_sum", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.CountIf) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.trim_sql": {"fullname": "sqlglot.dialects.dialect.trim_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "trim_sql", "kind": "function", "doc": "

\n", "signature": "(\tself: sqlglot.generator.Generator,\texpression: sqlglot.expressions.Trim) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.str_to_time_sql": {"fullname": "sqlglot.dialects.dialect.str_to_time_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "str_to_time_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> str:", "funcdef": "def"}, "sqlglot.dialects.dialect.ts_or_ds_to_date_sql": {"fullname": "sqlglot.dialects.dialect.ts_or_ds_to_date_sql", "modulename": "sqlglot.dialects.dialect", "qualname": "ts_or_ds_to_date_sql", "kind": "function", "doc": "

\n", "signature": "(dialect: str) -> Callable:", "funcdef": "def"}, "sqlglot.dialects.drill": {"fullname": "sqlglot.dialects.drill", "modulename": "sqlglot.dialects.drill", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.drill.Drill": {"fullname": "sqlglot.dialects.drill.Drill", "modulename": "sqlglot.dialects.drill", "qualname": "Drill", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.drill.Drill.Tokenizer": {"fullname": "sqlglot.dialects.drill.Drill.Tokenizer", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.drill.Drill.Parser": {"fullname": "sqlglot.dialects.drill.Drill.Parser", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.drill.Drill.Generator": {"fullname": "sqlglot.dialects.drill.Drill.Generator", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.drill.Drill.Generator.normalize_func": {"fullname": "sqlglot.dialects.drill.Drill.Generator.normalize_func", "modulename": "sqlglot.dialects.drill", "qualname": "Drill.Generator.normalize_func", "kind": "function", "doc": "

\n", "signature": "(self, name: str) -> str:", "funcdef": "def"}, "sqlglot.dialects.duckdb": {"fullname": "sqlglot.dialects.duckdb", "modulename": "sqlglot.dialects.duckdb", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.duckdb.DuckDB": {"fullname": "sqlglot.dialects.duckdb.DuckDB", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.duckdb.DuckDB.Tokenizer": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Tokenizer", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.duckdb.DuckDB.Parser": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Parser", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.duckdb.DuckDB.Generator": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql": {"fullname": "sqlglot.dialects.duckdb.DuckDB.Generator.tablesample_sql", "modulename": "sqlglot.dialects.duckdb", "qualname": "DuckDB.Generator.tablesample_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.TableSample,\tseed_prefix: str = 'SEED',\tsep=' AS ') -> str:", "funcdef": "def"}, "sqlglot.dialects.hive": {"fullname": "sqlglot.dialects.hive", "modulename": "sqlglot.dialects.hive", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.hive.Hive": {"fullname": "sqlglot.dialects.hive.Hive", "modulename": "sqlglot.dialects.hive", "qualname": "Hive", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.hive.Hive.Tokenizer": {"fullname": "sqlglot.dialects.hive.Hive.Tokenizer", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.hive.Hive.Parser": {"fullname": "sqlglot.dialects.hive.Hive.Parser", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.hive.Hive.Generator": {"fullname": "sqlglot.dialects.hive.Hive.Generator", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.arrayagg_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.arrayagg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ArrayAgg) -> str:", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.with_properties": {"fullname": "sqlglot.dialects.hive.Hive.Generator.with_properties", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.with_properties", "kind": "function", "doc": "

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.hive.Hive.Generator.datatype_sql": {"fullname": "sqlglot.dialects.hive.Hive.Generator.datatype_sql", "modulename": "sqlglot.dialects.hive", "qualname": "Hive.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.mysql": {"fullname": "sqlglot.dialects.mysql", "modulename": "sqlglot.dialects.mysql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.mysql.MySQL": {"fullname": "sqlglot.dialects.mysql.MySQL", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.mysql.MySQL.Tokenizer": {"fullname": "sqlglot.dialects.mysql.MySQL.Tokenizer", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.mysql.MySQL.Parser": {"fullname": "sqlglot.dialects.mysql.MySQL.Parser", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.mysql.MySQL.Generator": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.mysql.MySQL.Generator.show_sql": {"fullname": "sqlglot.dialects.mysql.MySQL.Generator.show_sql", "modulename": "sqlglot.dialects.mysql", "qualname": "MySQL.Generator.show_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Show) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle": {"fullname": "sqlglot.dialects.oracle", "modulename": "sqlglot.dialects.oracle", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.oracle.Oracle": {"fullname": "sqlglot.dialects.oracle.Oracle", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.oracle.Oracle.Parser": {"fullname": "sqlglot.dialects.oracle.Oracle.Parser", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.oracle.Oracle.Generator": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.oracle.Oracle.Generator.offset_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.offset_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.column_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.column_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.column_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Column) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql": {"fullname": "sqlglot.dialects.oracle.Oracle.Generator.xmltable_sql", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Generator.xmltable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.XMLTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.oracle.Oracle.Tokenizer": {"fullname": "sqlglot.dialects.oracle.Oracle.Tokenizer", "modulename": "sqlglot.dialects.oracle", "qualname": "Oracle.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres": {"fullname": "sqlglot.dialects.postgres", "modulename": "sqlglot.dialects.postgres", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.postgres.Postgres": {"fullname": "sqlglot.dialects.postgres.Postgres", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.postgres.Postgres.Tokenizer": {"fullname": "sqlglot.dialects.postgres.Postgres.Tokenizer", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.postgres.Postgres.Parser": {"fullname": "sqlglot.dialects.postgres.Postgres.Parser", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.postgres.Postgres.Generator": {"fullname": "sqlglot.dialects.postgres.Postgres.Generator", "modulename": "sqlglot.dialects.postgres", "qualname": "Postgres.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto": {"fullname": "sqlglot.dialects.presto", "modulename": "sqlglot.dialects.presto", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.presto.Presto": {"fullname": "sqlglot.dialects.presto.Presto", "modulename": "sqlglot.dialects.presto", "qualname": "Presto", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.presto.Presto.Tokenizer": {"fullname": "sqlglot.dialects.presto.Presto.Tokenizer", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.presto.Presto.Parser": {"fullname": "sqlglot.dialects.presto.Presto.Parser", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.presto.Presto.Generator": {"fullname": "sqlglot.dialects.presto.Presto.Generator", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.presto.Presto.Generator.interval_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.interval_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.interval_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Interval) -> str:", "funcdef": "def"}, "sqlglot.dialects.presto.Presto.Generator.transaction_sql": {"fullname": "sqlglot.dialects.presto.Presto.Generator.transaction_sql", "modulename": "sqlglot.dialects.presto", "qualname": "Presto.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Transaction) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift": {"fullname": "sqlglot.dialects.redshift", "modulename": "sqlglot.dialects.redshift", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.redshift.Redshift": {"fullname": "sqlglot.dialects.redshift.Redshift", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres"}, "sqlglot.dialects.redshift.Redshift.Parser": {"fullname": "sqlglot.dialects.redshift.Redshift.Parser", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Parser"}, "sqlglot.dialects.redshift.Redshift.Tokenizer": {"fullname": "sqlglot.dialects.redshift.Redshift.Tokenizer", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.postgres.Postgres.Tokenizer"}, "sqlglot.dialects.redshift.Redshift.Generator": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.postgres.Postgres.Generator"}, "sqlglot.dialects.redshift.Redshift.Generator.values_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.values_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.values_sql", "kind": "function", "doc": "

Converts VALUES... expression into a series of unions.

\n\n

Note: If you have a lot of unions then this will result in a large number of recursive statements to\nevaluate the expression. You may need to increase sys.setrecursionlimit to run and it can also be\nvery slow.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.with_properties": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.with_properties", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.with_properties", "kind": "function", "doc": "

Redshift doesn't have WITH as part of their with_properties so we remove it

\n", "signature": "(self, properties: sqlglot.expressions.Properties) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.renametable_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.renametable_sql", "kind": "function", "doc": "

Redshift only supports defining the table name itself (not the db) when renaming tables

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql": {"fullname": "sqlglot.dialects.redshift.Redshift.Generator.datatype_sql", "modulename": "sqlglot.dialects.redshift", "qualname": "Redshift.Generator.datatype_sql", "kind": "function", "doc": "

Redshift converts the TEXT data type to VARCHAR(255) by default when people more generally mean\nVARCHAR of max length which is VARCHAR(max) in Redshift. Therefore if we get a TEXT data type\nwithout precision we convert it to VARCHAR(max) and if it does have precision then we just convert\nTEXT to VARCHAR.

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake": {"fullname": "sqlglot.dialects.snowflake", "modulename": "sqlglot.dialects.snowflake", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.snowflake.Snowflake": {"fullname": "sqlglot.dialects.snowflake.Snowflake", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.snowflake.Snowflake.Parser": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Parser", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.snowflake.Snowflake.Tokenizer": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Tokenizer", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.snowflake.Snowflake.Generator": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.snowflake.Snowflake.Generator.except_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.except_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.except_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Except) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.intersect_op", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.intersect_op", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Intersect) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.values_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.values_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.

\n\n

We also want to make sure that after we find matches where we need to unquote a column that we prevent users\nfrom adding quotes to the column by using the identify argument when generating the SQL.

\n", "signature": "(self, expression: sqlglot.expressions.Values) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.settag_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.settag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SetTag) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.select_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.select_sql", "kind": "function", "doc": "

Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also\nthat all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need\nto unquote a column that we prevent users from adding quotes to the column by using the identify argument when\ngenerating the SQL.

\n\n

Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the\nexpression. This might not be true in a case where the same column name can be sourced from another table that can\nproperly quote but should be true in most cases.

\n", "signature": "(self, expression: sqlglot.expressions.Select) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.describe_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.describe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Describe) -> str:", "funcdef": "def"}, "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql": {"fullname": "sqlglot.dialects.snowflake.Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "modulename": "sqlglot.dialects.snowflake", "qualname": "Snowflake.Generator.generatedasidentitycolumnconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: sqlglot.expressions.GeneratedAsIdentityColumnConstraint) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark": {"fullname": "sqlglot.dialects.spark", "modulename": "sqlglot.dialects.spark", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.spark.Spark": {"fullname": "sqlglot.dialects.spark.Spark", "modulename": "sqlglot.dialects.spark", "qualname": "Spark", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.spark2.Spark2"}, "sqlglot.dialects.spark.Spark.Parser": {"fullname": "sqlglot.dialects.spark.Spark.Parser", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.spark2.Spark2.Parser"}, "sqlglot.dialects.spark.Spark.Generator": {"fullname": "sqlglot.dialects.spark.Spark.Generator", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.spark2.Spark2.Generator"}, "sqlglot.dialects.spark.Spark.Generator.datediff_sql": {"fullname": "sqlglot.dialects.spark.Spark.Generator.datediff_sql", "modulename": "sqlglot.dialects.spark", "qualname": "Spark.Generator.datediff_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DateDiff) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark2": {"fullname": "sqlglot.dialects.spark2", "modulename": "sqlglot.dialects.spark2", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.spark2.Spark2": {"fullname": "sqlglot.dialects.spark2.Spark2", "modulename": "sqlglot.dialects.spark2", "qualname": "Spark2", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive"}, "sqlglot.dialects.spark2.Spark2.Parser": {"fullname": "sqlglot.dialects.spark2.Spark2.Parser", "modulename": "sqlglot.dialects.spark2", "qualname": "Spark2.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Parser"}, "sqlglot.dialects.spark2.Spark2.Generator": {"fullname": "sqlglot.dialects.spark2.Spark2.Generator", "modulename": "sqlglot.dialects.spark2", "qualname": "Spark2.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.hive.Hive.Generator"}, "sqlglot.dialects.spark2.Spark2.Generator.cast_sql": {"fullname": "sqlglot.dialects.spark2.Spark2.Generator.cast_sql", "modulename": "sqlglot.dialects.spark2", "qualname": "Spark2.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.spark2.Spark2.Tokenizer": {"fullname": "sqlglot.dialects.spark2.Spark2.Tokenizer", "modulename": "sqlglot.dialects.spark2", "qualname": "Spark2.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.hive.Hive.Tokenizer"}, "sqlglot.dialects.sqlite": {"fullname": "sqlglot.dialects.sqlite", "modulename": "sqlglot.dialects.sqlite", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.sqlite.SQLite": {"fullname": "sqlglot.dialects.sqlite.SQLite", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.sqlite.SQLite.Tokenizer": {"fullname": "sqlglot.dialects.sqlite.SQLite.Tokenizer", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.sqlite.SQLite.Parser": {"fullname": "sqlglot.dialects.sqlite.SQLite.Parser", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.sqlite.SQLite.Generator": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.cast_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.cast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Cast) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.datediff_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.datediff_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.datediff_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DateDiff) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.groupconcat_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.groupconcat_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.least_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.least_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.least_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Least) -> str:", "funcdef": "def"}, "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql": {"fullname": "sqlglot.dialects.sqlite.SQLite.Generator.transaction_sql", "modulename": "sqlglot.dialects.sqlite", "qualname": "SQLite.Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Transaction) -> str:", "funcdef": "def"}, "sqlglot.dialects.starrocks": {"fullname": "sqlglot.dialects.starrocks", "modulename": "sqlglot.dialects.starrocks", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.starrocks.StarRocks": {"fullname": "sqlglot.dialects.starrocks.StarRocks", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.mysql.MySQL"}, "sqlglot.dialects.starrocks.StarRocks.Parser": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Parser", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Parser"}, "sqlglot.dialects.starrocks.StarRocks.Generator": {"fullname": "sqlglot.dialects.starrocks.StarRocks.Generator", "modulename": "sqlglot.dialects.starrocks", "qualname": "StarRocks.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.mysql.MySQL.Generator"}, "sqlglot.dialects.tableau": {"fullname": "sqlglot.dialects.tableau", "modulename": "sqlglot.dialects.tableau", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tableau.Tableau": {"fullname": "sqlglot.dialects.tableau.Tableau", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tableau.Tableau.Generator": {"fullname": "sqlglot.dialects.tableau.Tableau.Generator", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tableau.Tableau.Parser": {"fullname": "sqlglot.dialects.tableau.Tableau.Parser", "modulename": "sqlglot.dialects.tableau", "qualname": "Tableau.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata": {"fullname": "sqlglot.dialects.teradata", "modulename": "sqlglot.dialects.teradata", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.teradata.Teradata": {"fullname": "sqlglot.dialects.teradata.Teradata", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.teradata.Teradata.Tokenizer": {"fullname": "sqlglot.dialects.teradata.Teradata.Tokenizer", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.teradata.Teradata.Parser": {"fullname": "sqlglot.dialects.teradata.Teradata.Parser", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.teradata.Teradata.Generator": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.partitionedbyproperty_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.partitionedbyproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.PartitionedByProperty) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.update_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.update_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.update_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Update) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.mod_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.mod_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.datatype_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.datatype_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DataType) -> str:", "funcdef": "def"}, "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql": {"fullname": "sqlglot.dialects.teradata.Teradata.Generator.rangen_sql", "modulename": "sqlglot.dialects.teradata", "qualname": "Teradata.Generator.rangen_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RangeN) -> str:", "funcdef": "def"}, "sqlglot.dialects.trino": {"fullname": "sqlglot.dialects.trino", "modulename": "sqlglot.dialects.trino", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.trino.Trino": {"fullname": "sqlglot.dialects.trino.Trino", "modulename": "sqlglot.dialects.trino", "qualname": "Trino", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto"}, "sqlglot.dialects.trino.Trino.Generator": {"fullname": "sqlglot.dialects.trino.Trino.Generator", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.dialects.presto.Presto.Generator"}, "sqlglot.dialects.trino.Trino.Tokenizer": {"fullname": "sqlglot.dialects.trino.Trino.Tokenizer", "modulename": "sqlglot.dialects.trino", "qualname": "Trino.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.presto.Presto.Tokenizer"}, "sqlglot.dialects.tsql": {"fullname": "sqlglot.dialects.tsql", "modulename": "sqlglot.dialects.tsql", "kind": "module", "doc": "

\n"}, "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql": {"fullname": "sqlglot.dialects.tsql.generate_date_delta_with_unit_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "generate_date_delta_with_unit_sql", "kind": "function", "doc": "

\n", "signature": "(self, e):", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL": {"fullname": "sqlglot.dialects.tsql.TSQL", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.dialects.tsql.TSQL.Tokenizer": {"fullname": "sqlglot.dialects.tsql.TSQL.Tokenizer", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.dialects.tsql.TSQL.Parser": {"fullname": "sqlglot.dialects.tsql.TSQL.Parser", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n", "bases": "sqlglot.parser.Parser"}, "sqlglot.dialects.tsql.TSQL.Generator": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.dialects.tsql.TSQL.Generator.offset_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.offset_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.offset_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Offset) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.systemtime_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.systemtime_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SystemTime) -> str:", "funcdef": "def"}, "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql": {"fullname": "sqlglot.dialects.tsql.TSQL.Generator.returnsproperty_sql", "modulename": "sqlglot.dialects.tsql", "qualname": "TSQL.Generator.returnsproperty_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ReturnsProperty) -> str:", "funcdef": "def"}, "sqlglot.diff": {"fullname": "sqlglot.diff", "modulename": "sqlglot.diff", "kind": "module", "doc": "

Semantic Diff for SQL

\n\n

by Iaroslav Zeigerman

\n\n

Motivation

\n\n

Software is constantly changing and evolving, and identifying what has changed and reviewing those changes is an integral part of the development process. SQL code is no exception to this.

\n\n

Text-based diff tools such as git diff, when applied to a code base, have certain limitations. First, they can only detect insertions and deletions, not movements or updates of individual pieces of code. Second, such tools can only detect changes between lines of text, which is too coarse for something as granular and detailed as source code. Additionally, the outcome of such a diff is dependent on the underlying code formatting, and yields different results if the formatting should change.

\n\n

Consider the following diff generated by Git:

\n\n

\"Git

\n\n

Semantically the query hasn\u2019t changed. The two arguments b and c have been swapped (moved), posing no impact on the output of the query. Yet Git replaced the whole affected expression alongside a bulk of unrelated elements.

\n\n

The alternative to text-based diffing is to compare Abstract Syntax Trees (AST) instead. The main advantage of ASTs are that they are a direct product of code parsing, which represents the underlying code structure at any desired level of granularity. Comparing ASTs may yield extremely precise diffs; changes such as code movements and updates can also be detected. Even more importantly, this approach facilitates additional use cases beyond eyeballing two versions of source code side by side.

\n\n

The use cases I had in mind for SQL when I decided to embark on this journey of semantic diffing were the following:

\n\n
    \n
  • Query similarity score. Identifying which parts the two queries have in common to automatically suggest opportunities for consolidation, creation of intermediate/staging tables, and so on.
  • \n
  • Differentiating between cosmetic / structural changes and functional ones. For example when a nested query is refactored into a common table expression (CTE), this kind of change doesn\u2019t have any functional impact on either a query or its outcome.
  • \n
  • Automatic suggestions about the need to retroactively backfill data. This is especially important for pipelines that populate very large tables for which restatement is a runtime-intensive procedure. The ability to discern between simple code movements and actual modifications can help assess the impact of a change and make suggestions accordingly.
  • \n
\n\n

The implementation discussed in this post is now a part of the SQLGlot library. You can find a complete source code in the diff.py module. The choice of SQLglot was an obvious one due to its simple but powerful API, lack of external dependencies and, more importantly, extensive list of supported SQL dialects.

\n\n

The Search for a Solution

\n\n

When it comes to any diffing tool (not just a semantic one), the primary challenge is to match as many elements of compared entities as possible. Once such a set of matching elements is available, deriving a sequence of changes becomes an easy task.

\n\n

If our elements have unique identifiers associated with them (for example, an element\u2019s ID in DOM), the matching problem is trivial. However, the SQL syntax trees that we are comparing have neither unique keys nor object identifiers that can be used for the purposes of matching. So, how do we suppose to find pairs of nodes that are related?

\n\n

To better illustrate the problem, consider comparing the following SQL expressions: SELECT a + b + c, d, e and SELECT a - b + c, e, f. Matching individual nodes from respective syntax trees can be visualized as follows:

\n\n

\"Figure\nFigure 1: Example of node matching for two SQL expression trees.

\n\n

By looking at the figure of node matching for two SQL expression trees above, we conclude that the following changes should be captured by our solution:

\n\n
    \n
  • Inserted nodes: Sub and f. These are the nodes from the target AST which do not have a matching node in the source AST.
  • \n
  • Removed nodes: Add and d. These are the nodes from the source AST which do not have a counterpart in the target AST.
  • \n
  • Remaining nodes must be identified as unchanged.
  • \n
\n\n

It should be clear at this point that if we manage to match nodes in the source tree with their counterparts in the target tree, then computing the diff becomes a trivial matter.

\n\n

Na\u00efve Brute-Force

\n\n

The na\u00efve solution would be to try all different permutations of node pair combinations, and see which set of pairs performs the best based on some type of heuristics. The runtime cost of such a solution quickly reaches the escape velocity; if both trees had only 10 nodes each, the number of such sets would approximately be 10! ^ 2 = 3.6M ^ 2 ~= 13 * 10^12. This is a very bad case of factorial complexity (to be precise, it\u2019s actually much worse - O(n! ^ 2) - but I couldn\u2019t come up with a name for it), so there is little need to explore this approach any further.

\n\n

Myers Algorithm

\n\n

After the na\u00efve approach was proven to be infeasible, the next question I asked myself was \u201chow does git diff work?\u201d. This question led me to discover the Myers diff algorithm [1]. This algorithm has been designed to compare sequences of strings. At its core, it\u2019s looking for the shortest path on a graph of possible edits that transform the first sequence into the second one, while heavily rewarding those paths that lead to longest subsequences of unchanged elements. There\u2019s a lot of material out there describing this algorithm in greater detail. I found James Coglan\u2019s series of blog posts to be the most comprehensive.

\n\n

Therefore, I had this \u201cbrilliant\u201d (actually not) idea to transform trees into sequences by traversing them in topological order, and then applying the Myers algorithm on resulting sequences while using a custom heuristics when checking the equality of two nodes. Unsurprisingly, comparing sequences of strings is quite different from comparing hierarchical tree structures, and by flattening trees into sequences, we lose a lot of relevant context. This resulted in a terrible performance of this algorithm on ASTs. It often matched completely unrelated nodes, even when the two trees were mostly the same, and produced extremely inaccurate lists of changes overall. After playing around with it a little and tweaking my equality heuristics to improve accuracy, I ultimately scrapped the whole implementation and went back to the drawing board.

\n\n

Change Distiller

\n\n

The algorithm I settled on at the end was Change Distiller, created by Fluri et al. [2], which in turn is an improvement over the core idea described by Chawathe et al. [3].

\n\n

The algorithm consists of two high-level steps:

\n\n
    \n
  1. Finding appropriate matchings between pairs of nodes that are part of compared ASTs. Identifying what is meant by \u201cappropriate\u201d matching is also a part of this step.
  2. \n
  3. Generating the so-called \u201cedit script\u201d from the matching set built in the 1st step. The edit script is a sequence of edit operations (for example, insert, remove, update, etc.) on individual tree nodes, such that when applied as transformations on the source AST, it eventually becomes the target AST. In general, the shorter the sequence, the better. The length of the edit script can be used to compare the performance of different algorithms, though this is not the only metric that matters.
  4. \n
\n\n

The rest of this section is dedicated to the Python implementation of the steps above using the AST implementation provided by the SQLGlot library.

\n\n

Building the Matching Set

\n\n

Matching Leaves

\n\n

We begin composing the matching set by matching the leaf nodes. Leaf nodes are the nodes that do not have any children nodes (such as literals, identifiers, etc.). In order to match them, we gather all the leaf nodes from the source tree and generate a cartesian product with all the leaves from the target tree, while comparing pairs created this way and assigning them a similarity score. During this stage, we also exclude pairs that don\u2019t pass basic matching criteria. Then, we pick pairs that scored the highest while making sure that each node is matched no more than once.

\n\n

Using the example provided at the beginning of the post, the process of building an initial set of candidate matchings can be seen on Figure 2.

\n\n

\"Figure\nFigure 2: Building a set of candidate matchings between leaf nodes. The third item in each triplet represents a similarity score between two nodes.

\n\n

First, let\u2019s analyze the similarity score. Then, we\u2019ll discuss matching criteria.

\n\n

The similarity score proposed by Fluri et al. [2] is a dice coefficient applied to bigrams of respective node values. A bigram is a sequence of two adjacent elements from a string computed in a sliding window fashion:

\n\n
\n
def bigram(string):\n    count = max(0, len(string) - 1)\n    return [string[i : i + 2] for i in range(count)]\n
\n
\n\n

For reasons that will become clear shortly, we actually need to compute bigram histograms rather than just sequences:

\n\n
\n
from collections import defaultdict\n\ndef bigram_histo(string):\n    count = max(0, len(string) - 1)\n    bigram_histo = defaultdict(int)\n    for i in range(count):\n        bigram_histo[string[i : i + 2]] += 1\n    return bigram_histo\n
\n
\n\n

The dice coefficient formula looks like following:

\n\n

\"Dice

\n\n

Where X is a bigram of the source node and Y is a bigram of the second one. What this essentially does is count the number of bigram elements the two nodes have in common, multiply it by 2, and then divide by the total number of elements in both bigrams. This is where bigram histograms come in handy:

\n\n
\n
def dice_coefficient(source, target):\n    source_histo = bigram_histo(source.sql())\n    target_histo = bigram_histo(target.sql())\n\n    total_grams = (\n        sum(source_histo.values()) + sum(target_histo.values())\n    )\n    if not total_grams:\n        return 1.0 if source == target else 0.0\n\n    overlap_len = 0\n    overlapping_grams = set(source_histo) & set(target_histo)\n    for g in overlapping_grams:\n        overlap_len += min(source_histo[g], target_histo[g])\n\n    return 2 * overlap_len / total_grams\n
\n
\n\n

To compute a bigram given a tree node, we first transform the node into its canonical SQL representation,so that the Literal(123) node becomes just \u201c123\u201d and the Identifier(\u201ca\u201d) node becomes just \u201ca\u201d. We also handle a scenario when strings are too short to derive bigrams. In this case, we fallback to checking the two nodes for equality.

\n\n

Now when we know how to compute the similarity score, we can take care of the matching criteria for leaf nodes. In the original paper [2], the matching criteria is formalized as follows:

\n\n

\"Matching

\n\n

The two nodes are matched if two conditions are met:

\n\n
    \n
  1. The node labels match (in our case labels are just node types).
  2. \n
  3. The similarity score for node values is greater than or equal to some threshold \u201cf\u201d. The authors of the paper recommend setting the value of \u201cf\u201d to 0.6.
  4. \n
\n\n

With building blocks in place, we can now build a matching set for leaf nodes. First, we generate a list of candidates for matching:

\n\n
\n
from heapq import heappush, heappop\n\ncandidate_matchings = []\nsource_leaves = _get_leaves(self._source)\ntarget_leaves = _get_leaves(self._target)\nfor source_leaf in source_leaves:\n    for target_leaf in target_leaves:\n        if _is_same_type(source_leaf, target_leaf):\n            similarity_score = dice_coefficient(\n                source_leaf, target_leaf\n            )\n            if similarity_score >= 0.6:\n                heappush(\n                    candidate_matchings,\n                    (\n                        -similarity_score,\n                        len(candidate_matchings),\n                        source_leaf,\n                        target_leaf,\n                    ),\n                )\n
\n
\n\n

In the implementation above, we push each matching pair onto the heap to automatically maintain the correct order based on the assigned similarity score.

\n\n

Finally, we build the initial matching set by picking leaf pairs with the highest score:

\n\n
\n
matching_set = set()\nwhile candidate_matchings:\n    _, _, source_leaf, target_leaf = heappop(candidate_matchings)\n    if (\n        source_leaf in unmatched_source_nodes\n        and target_leaf in unmatched_target_nodes\n    ):\n        matching_set.add((source_leaf, target_leaf))\n        unmatched_source_nodes.remove(source_leaf)\n        unmatched_target_nodes.remove(target_leaf)\n
\n
\n\n

To finalize the matching set, we should now proceed with matching inner nodes.

\n\n

Matching Inner Nodes

\n\n

Matching inner nodes is quite similar to matching leaf nodes, with the following two distinctions:

\n\n
    \n
  • Rather than ranking a set of possible candidates, we pick the first node pair that passes the matching criteria.
  • \n
  • The matching criteria itself has been extended to account for the number of leaf nodes the pair of inner nodes have in common.
  • \n
\n\n

\"Figure\nFigure 3: Matching inner nodes based on their type as well as how many of their leaf nodes have been previously matched.

\n\n

Let\u2019s start with the matching criteria. The criteria is formalized as follows:

\n\n

\"Matching

\n\n

Alongside already familiar similarity score and node type criteria, there is a new one in the middle: the ratio of leaf nodes that the two nodes have in common must exceed some threshold \u201ct\u201d. The recommended value for \u201ct\u201d is also 0.6. Counting the number of common leaf nodes is pretty straightforward, since we already have the complete matching set for leaves. All we need to do is count how many matching pairs do leaf nodes from the two compared inner nodes form.

\n\n

There are two additional heuristics associated with this matching criteria:

\n\n
    \n
  • Inner node similarity weighting: if the similarity score between the node values doesn\u2019t pass the threshold \u201cf\u201d but the ratio of common leaf nodes (\u201ct\u201d) is greater than or equal to 0.8, then the matching is considered successful.
  • \n
  • The threshold \u201ct\u201d is reduced to 0.4 for inner nodes with the number of leaf nodes equal to 4 or less, in order to decrease the false negative rate for small subtrees.
  • \n
\n\n

We now only have to iterate through the remaining unmatched nodes and form matching pairs based on the outlined criteria:

\n\n
\n
leaves_matching_set = matching_set.copy()\n\nfor source_node in unmatched_source_nodes.copy():\n    for target_node in unmatched_target_nodes:\n        if _is_same_type(source_node, target_node):\n            source_leaves = set(_get_leaves(source_node))\n            target_leaves = set(_get_leaves(target_node))\n\n            max_leaves_num = max(len(source_leaves), len(target_leaves))\n            if max_leaves_num:\n                common_leaves_num = sum(\n                    1 if s in source_leaves and t in target_leaves else 0\n                    for s, t in leaves_matching_set\n                )\n                leaf_similarity_score = common_leaves_num / max_leaves_num\n            else:\n                leaf_similarity_score = 0.0\n\n            adjusted_t = (\n                0.6\n                if min(len(source_leaves), len(target_leaves)) > 4\n                else 0.4\n            )\n\n            if leaf_similarity_score >= 0.8 or (\n                leaf_similarity_score >= adjusted_t\n                and dice_coefficient(source_node, target_node) >= 0.6\n            ):\n                matching_set.add((source_node, target_node))\n                unmatched_source_nodes.remove(source_node)\n                unmatched_target_nodes.remove(target_node)\n                break\n
\n
\n\n

After the matching set is formed, we can proceed with generation of the edit script, which will be the algorithm\u2019s output.

\n\n

Generating the Edit Script

\n\n

At this point, we should have the following 3 sets at our disposal:

\n\n
    \n
  • The set of matched node pairs.
  • \n
  • The set of remaining unmatched nodes from the source tree.
  • \n
  • The set of remaining unmatched nodes from the target tree.
  • \n
\n\n

We can derive 3 kinds of edits from the matching set: either the node\u2019s value was updated (Update), the node was moved to a different position within the tree (Move), or the node remained unchanged (Keep). Note that the Move case is not mutually exclusive with the other two. The node could have been updated or could have remained the same while at the same time its position within its parent node or the parent node itself could have changed. All unmatched nodes from the source tree are the ones that were removed (Remove), while unmatched nodes from the target tree are the ones that were inserted (Insert).

\n\n

The latter two cases are pretty straightforward to implement:

\n\n
\n
edit_script = []\n\nfor removed_node in unmatched_source_nodes:\n    edit_script.append(Remove(removed_node))\nfor inserted_node in unmatched_target_nodes:\n    edit_script.append(Insert(inserted_node))\n
\n
\n\n

Traversing the matching set requires a little more thought:

\n\n
\n
for source_node, target_node in matching_set:\n    if (\n        not isinstance(source_node, LEAF_EXPRESSION_TYPES)\n        or source_node == target_node\n    ):\n        move_edits = generate_move_edits(\n            source_node, target_node, matching_set\n        )\n        edit_script.extend(move_edits)\n        edit_script.append(Keep(source_node, target_node))\n    else:\n        edit_script.append(Update(source_node, target_node))\n
\n
\n\n

If a matching pair represents a pair of leaf nodes, we check if they are the same to decide whether an update took place. For inner node pairs, we also need to compare the positions of their respective children to detect node movements. Chawathe et al. [3] suggest applying the longest common subsequence (LCS) algorithm which, no surprise here, was described by Myers himself [1]. There is a small catch, however: instead of checking the equality of two children nodes, we need to check whether the two nodes form a pair that is a part of our matching set.

\n\n

Now with this knowledge, the implementation becomes straightforward:

\n\n
\n
def generate_move_edits(source, target, matching_set):\n    source_children = _get_child_nodes(source)\n    target_children = _get_child_nodes(target)\n\n    lcs = set(\n        _longest_common_subsequence(\n            source_children,\n            target_children,\n            lambda l, r: (l, r) in matching_set\n        )\n    )\n\n    move_edits = []\n    for node in source_children:\n        if node not in lcs and node not in unmatched_source_nodes:\n            move_edits.append(Move(node))\n\n    return move_edits\n
\n
\n\n

I left out the implementation of the LCS algorithm itself here, but there are plenty of implementation choices out there that can be easily looked up.

\n\n

Output

\n\n

The implemented algorithm produces the output that resembles the following:

\n\n
\n
>>> from sqlglot import parse_one, diff\n>>> diff(parse_one("SELECT a + b + c, d, e"), parse_one("SELECT a - b + c, e, f"))\n\nRemove(Add)\nRemove(Column(d))\nRemove(Identifier(d))\nInsert(Sub)\nInsert(Column(f))\nInsert(Identifier(f))\nKeep(Select, Select)\nKeep(Add, Add)\nKeep(Column(a), Column(a))\nKeep(Identifier(a), Identifier(a))\nKeep(Column(b), Column(b))\nKeep(Identifier(b), Identifier(b))\nKeep(Column(c), Column(c))\nKeep(Identifier(c), Identifier(c))\nKeep(Column(e), Column(e))\nKeep(Identifier(e), Identifier(e))\n
\n
\n\n

Note that the output above is abbreviated. The string representation of actual AST nodes is significantly more verbose.

\n\n

The implementation works especially well when coupled with the SQLGlot\u2019s query optimizer which can be used to produce canonical representations of compared queries:

\n\n
\n
>>> schema={"t": {"a": "INT", "b": "INT", "c": "INT", "d": "INT"}}\n>>> source = """\n... SELECT 1 + 1 + a\n... FROM t\n... WHERE b = 1 OR (c = 2 AND d = 3)\n... """\n>>> target = """\n... SELECT 2 + a\n... FROM t\n... WHERE (b = 1 OR c = 2) AND (b = 1 OR d = 3)\n... """\n>>> optimized_source = optimize(parse_one(source), schema=schema)\n>>> optimized_target = optimize(parse_one(target), schema=schema)\n>>> edit_script = diff(optimized_source, optimized_target)\n>>> sum(0 if isinstance(e, Keep) else 1 for e in edit_script)\n0\n
\n
\n\n

Optimizations

\n\n

The worst case runtime complexity of this algorithm is not exactly stellar: O(n^2 * log n^2). This is because of the leaf matching process, which involves ranking a cartesian product between all leaf nodes of compared trees. Unsurprisingly, the algorithm takes a considerable time to finish for bigger queries.

\n\n

There are still a few basic things we can do in our implementation to help improve performance:

\n\n
    \n
  • Refer to individual node objects using their identifiers (Python\u2019s id()) instead of direct references in sets. This helps avoid costly recursive hash calculations and equality checks.
  • \n
  • Cache bigram histograms to avoid computing them more than once for the same node.
  • \n
  • Compute the canonical SQL string representation for each tree once while caching string representations of all inner nodes. This prevents redundant tree traversals when bigrams are computed.
  • \n
\n\n

At the time of writing only the first two optimizations have been implemented, so there is an opportunity to contribute for anyone who\u2019s interested.

\n\n

Alternative Solutions

\n\n

This section is dedicated to solutions that I\u2019ve investigated, but haven\u2019t tried.

\n\n

First, this section wouldn\u2019t be complete without Tristan Hume\u2019s blog post. Tristan\u2019s solution has a lot in common with the Myers algorithm plus heuristics that is much more clever than what I came up with. The implementation relies on a combination of dynamic programming and A* search algorithm to explore the space of possible matchings and pick the best ones. It seemed to have worked well for Tistan\u2019s specific use case, but after my negative experience with the Myers algorithm, I decided to try something different.

\n\n

Another notable approach is the Gumtree algorithm by Falleri et al. [4]. I discovered this paper after I\u2019d already implemented the algorithm that is the main focus of this post. In sections 5.2 and 5.3 of their paper, the authors compare the two algorithms side by side and claim that Gumtree is significantly better in terms of both runtime performance and accuracy when evaluated on 12 792 pairs of Java source files. This doesn\u2019t surprise me, as the algorithm takes the height of subtrees into account. In my tests, I definitely saw scenarios in which this context would have helped. On top of that, the authors promise O(n^2) runtime complexity in the worst case which, given the Change Distiller's O(n^2 * log n^2), looks particularly tempting. I hope to try this algorithm out at some point, and there is a good chance you see me writing about it in my future posts.

\n\n

Conclusion

\n\n

The Change Distiller algorithm yielded quite satisfactory results in most of my tests. The scenarios in which it fell short mostly concerned identical (or very similar) subtrees located in different parts of the AST. In those cases, node mismatches were frequent and, as a result, edit scripts were somewhat suboptimal.

\n\n

Additionally, the runtime performance of the algorithm leaves a lot to be desired. On trees with 1000 leaf nodes each, the algorithm takes a little under 2 seconds to complete. My implementation still has room for improvement, but this should give you a rough idea of what to expect. It appears that the Gumtree algorithm [4] can help address both of these points. I hope to find bandwidth to work on it soon and then compare the two algorithms side-by-side to find out which one performs better on SQL specifically. In the meantime, Change Distiller definitely gets the job done, and I can now proceed with applying it to some of the use cases I mentioned at the beginning of this post.

\n\n

I\u2019m also curious to learn whether other folks in the industry faced a similar problem, and how they approached it. If you did something similar, I\u2019m interested to hear about your experience.

\n\n

References

\n\n

[1] Eugene W. Myers. An O(ND) Difference Algorithm and Its Variations. Algorithmica 1(2): 251-266 (1986)

\n\n

[2] B. Fluri, M. Wursch, M. Pinzger, and H. Gall. Change Distilling: Tree differencing for fine-grained source code change extraction. IEEE Trans. Software Eng., 33(11):725\u2013743, 2007.

\n\n

[3] S.S. Chawathe, A. Rajaraman, H. Garcia-Molina, and J. Widom. Change Detection in Hierarchically Structured Information. Proc. ACM Sigmod Int\u2019l Conf. Management of Data, pp. 493-504, June 1996

\n\n

[4] Jean-R\u00e9my Falleri, Flor\u00e9al Morandat, Xavier Blanc, Matias Martinez, Martin Monperrus. Fine-grained and Accurate Source Code Differencing. Proceedings of the International Conference on Automated Software Engineering, 2014, V\u00e4steras, Sweden. pp.313-324, 10.1145/2642937.2642982. hal-01054552

\n\n
\n"}, "sqlglot.diff.Insert": {"fullname": "sqlglot.diff.Insert", "modulename": "sqlglot.diff", "qualname": "Insert", "kind": "class", "doc": "

Indicates that a new node has been inserted

\n"}, "sqlglot.diff.Insert.__init__": {"fullname": "sqlglot.diff.Insert.__init__", "modulename": "sqlglot.diff", "qualname": "Insert.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Remove": {"fullname": "sqlglot.diff.Remove", "modulename": "sqlglot.diff", "qualname": "Remove", "kind": "class", "doc": "

Indicates that an existing node has been removed

\n"}, "sqlglot.diff.Remove.__init__": {"fullname": "sqlglot.diff.Remove.__init__", "modulename": "sqlglot.diff", "qualname": "Remove.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Move": {"fullname": "sqlglot.diff.Move", "modulename": "sqlglot.diff", "qualname": "Move", "kind": "class", "doc": "

Indicates that an existing node's position within the tree has changed

\n"}, "sqlglot.diff.Move.__init__": {"fullname": "sqlglot.diff.Move.__init__", "modulename": "sqlglot.diff", "qualname": "Move.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.diff.Update": {"fullname": "sqlglot.diff.Update", "modulename": "sqlglot.diff", "qualname": "Update", "kind": "class", "doc": "

Indicates that an existing node has been updated

\n"}, "sqlglot.diff.Update.__init__": {"fullname": "sqlglot.diff.Update.__init__", "modulename": "sqlglot.diff", "qualname": "Update.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.Keep": {"fullname": "sqlglot.diff.Keep", "modulename": "sqlglot.diff", "qualname": "Keep", "kind": "class", "doc": "

Indicates that an existing node hasn't been changed

\n"}, "sqlglot.diff.Keep.__init__": {"fullname": "sqlglot.diff.Keep.__init__", "modulename": "sqlglot.diff", "qualname": "Keep.__init__", "kind": "function", "doc": "

\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression)"}, "sqlglot.diff.diff": {"fullname": "sqlglot.diff.diff", "modulename": "sqlglot.diff", "qualname": "diff", "kind": "function", "doc": "

Returns the list of changes between the source and the target expressions.

\n\n
Examples:
\n\n
\n
\n
>>> diff(parse_one("a + b"), parse_one("a + c"))\n[\n    Remove(expression=(COLUMN this: (IDENTIFIER this: b, quoted: False))),\n    Insert(expression=(COLUMN this: (IDENTIFIER this: c, quoted: False))),\n    Keep(\n        source=(ADD this: ...),\n        target=(ADD this: ...)\n    ),\n    Keep(\n        source=(COLUMN this: (IDENTIFIER this: a, quoted: False)),\n        target=(COLUMN this: (IDENTIFIER this: a, quoted: False))\n    ),\n]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • source: the source expression.
  • \n
  • target: the target expression against which the diff should be calculated.
  • \n
  • matchings: the list of pre-matched node pairs which is used to help the algorithm's\nheuristics produce better results for subtrees that are known by a caller to be matching.\nNote: expression references in this list must refer to the same node objects that are\nreferenced in source / target trees.
  • \n
\n\n
Returns:
\n\n
\n

the list of Insert, Remove, Move, Update and Keep objects for each node in the source and the\n target expression trees. This list represents a sequence of steps needed to transform the source\n expression tree into the target one.

\n
\n", "signature": "(\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None,\t**kwargs: Any) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.diff.ChangeDistiller": {"fullname": "sqlglot.diff.ChangeDistiller", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller", "kind": "class", "doc": "

The implementation of the Change Distiller algorithm described by Beat Fluri and Martin Pinzger in\ntheir paper https://ieeexplore.ieee.org/document/4339230, which in turn is based on the algorithm by\nChawathe et al. described in http://ilpubs.stanford.edu:8090/115/1/1995-46.pdf.

\n"}, "sqlglot.diff.ChangeDistiller.__init__": {"fullname": "sqlglot.diff.ChangeDistiller.__init__", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.__init__", "kind": "function", "doc": "

\n", "signature": "(f: float = 0.6, t: float = 0.6)"}, "sqlglot.diff.ChangeDistiller.diff": {"fullname": "sqlglot.diff.ChangeDistiller.diff", "modulename": "sqlglot.diff", "qualname": "ChangeDistiller.diff", "kind": "function", "doc": "

\n", "signature": "(\tself,\tsource: sqlglot.expressions.Expression,\ttarget: sqlglot.expressions.Expression,\tmatchings: Optional[List[Tuple[sqlglot.expressions.Expression, sqlglot.expressions.Expression]]] = None) -> List[Union[sqlglot.diff.Insert, sqlglot.diff.Remove, sqlglot.diff.Move, sqlglot.diff.Update, sqlglot.diff.Keep]]:", "funcdef": "def"}, "sqlglot.errors": {"fullname": "sqlglot.errors", "modulename": "sqlglot.errors", "kind": "module", "doc": "

\n"}, "sqlglot.errors.ErrorLevel": {"fullname": "sqlglot.errors.ErrorLevel", "modulename": "sqlglot.errors", "qualname": "ErrorLevel", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.errors.ErrorLevel.IGNORE": {"fullname": "sqlglot.errors.ErrorLevel.IGNORE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IGNORE", "kind": "variable", "doc": "

Ignore all errors.

\n", "default_value": "<ErrorLevel.IGNORE: 'IGNORE'>"}, "sqlglot.errors.ErrorLevel.WARN": {"fullname": "sqlglot.errors.ErrorLevel.WARN", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.WARN", "kind": "variable", "doc": "

Log all errors.

\n", "default_value": "<ErrorLevel.WARN: 'WARN'>"}, "sqlglot.errors.ErrorLevel.RAISE": {"fullname": "sqlglot.errors.ErrorLevel.RAISE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.RAISE", "kind": "variable", "doc": "

Collect all errors and raise a single exception.

\n", "default_value": "<ErrorLevel.RAISE: 'RAISE'>"}, "sqlglot.errors.ErrorLevel.IMMEDIATE": {"fullname": "sqlglot.errors.ErrorLevel.IMMEDIATE", "modulename": "sqlglot.errors", "qualname": "ErrorLevel.IMMEDIATE", "kind": "variable", "doc": "

Immediately raise an exception on the first error found.

\n", "default_value": "<ErrorLevel.IMMEDIATE: 'IMMEDIATE'>"}, "sqlglot.errors.SqlglotError": {"fullname": "sqlglot.errors.SqlglotError", "modulename": "sqlglot.errors", "qualname": "SqlglotError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "builtins.Exception"}, "sqlglot.errors.UnsupportedError": {"fullname": "sqlglot.errors.UnsupportedError", "modulename": "sqlglot.errors", "qualname": "UnsupportedError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError": {"fullname": "sqlglot.errors.ParseError", "modulename": "sqlglot.errors", "qualname": "ParseError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ParseError.__init__": {"fullname": "sqlglot.errors.ParseError.__init__", "modulename": "sqlglot.errors", "qualname": "ParseError.__init__", "kind": "function", "doc": "

\n", "signature": "(message: str, errors: Optional[List[Dict[str, Any]]] = None)"}, "sqlglot.errors.ParseError.new": {"fullname": "sqlglot.errors.ParseError.new", "modulename": "sqlglot.errors", "qualname": "ParseError.new", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmessage: str,\tdescription: Optional[str] = None,\tline: Optional[int] = None,\tcol: Optional[int] = None,\tstart_context: Optional[str] = None,\thighlight: Optional[str] = None,\tend_context: Optional[str] = None,\tinto_expression: Optional[str] = None) -> sqlglot.errors.ParseError:", "funcdef": "def"}, "sqlglot.errors.TokenError": {"fullname": "sqlglot.errors.TokenError", "modulename": "sqlglot.errors", "qualname": "TokenError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.OptimizeError": {"fullname": "sqlglot.errors.OptimizeError", "modulename": "sqlglot.errors", "qualname": "OptimizeError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.SchemaError": {"fullname": "sqlglot.errors.SchemaError", "modulename": "sqlglot.errors", "qualname": "SchemaError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.ExecuteError": {"fullname": "sqlglot.errors.ExecuteError", "modulename": "sqlglot.errors", "qualname": "ExecuteError", "kind": "class", "doc": "

Common base class for all non-exit exceptions.

\n", "bases": "SqlglotError"}, "sqlglot.errors.concat_messages": {"fullname": "sqlglot.errors.concat_messages", "modulename": "sqlglot.errors", "qualname": "concat_messages", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[Any], maximum: int) -> str:", "funcdef": "def"}, "sqlglot.errors.merge_errors": {"fullname": "sqlglot.errors.merge_errors", "modulename": "sqlglot.errors", "qualname": "merge_errors", "kind": "function", "doc": "

\n", "signature": "(errors: Sequence[sqlglot.errors.ParseError]) -> List[Dict[str, Any]]:", "funcdef": "def"}, "sqlglot.executor": {"fullname": "sqlglot.executor", "modulename": "sqlglot.executor", "kind": "module", "doc": "

Writing a Python SQL engine from scratch

\n\n

Toby Mao

\n\n

Introduction

\n\n

When I first started writing SQLGlot in early 2021, my goal was just to translate SQL queries from SparkSQL to Presto and vice versa. However, over the last year and a half, I've ended up with a full-fledged SQL engine. SQLGlot can now parse and transpile between 18 SQL dialects and can execute all 24 TPC-H SQL queries. The parser and engine are all written from scratch using Python.

\n\n

This post will cover why I went through the effort of creating a Python SQL engine and how a simple query goes from a string to actually transforming data. The following steps are briefly summarized:

\n\n\n\n

Why?

\n\n

I started working on SQLGlot because of my work on the experimentation and metrics platform at Netflix, where I built tools that allowed data scientists to define and compute SQL-based metrics. Netflix relied on multiple engines to query data (Spark, Presto, and Druid), so my team built the metrics platform around PyPika, a Python SQL query builder. This way, definitions could be reused across multiple engines. However, it became quickly apparent that writing python code to programmatically generate SQL was challenging for data scientists, especially those with academic backgrounds, since they were mostly familiar with R and SQL. At the time, the only Python SQL parser was sqlparse, which is not actually a parser but a tokenizer, so having users write raw SQL into the platform wasn't really an option. Some time later, I randomly stumbled across Crafting Interpreters and realized that I could use it as a guide towards creating my own SQL parser/transpiler.

\n\n

Why did I do this? Isn't a Python SQL engine going to be extremely slow?

\n\n

The main reason why I ended up building a SQL engine was...just for entertainment. It's been fun learning about all the things required to actually run a SQL query, and seeing it actually work is extremely rewarding. Before SQLGlot, I had zero experience with lexers, parsers, or compilers.

\n\n

In terms of practical use cases, I planned to use the Python SQL engine for unit testing SQL pipelines. Big data pipelines are tough to test because many of the engines are not open source and cannot be run locally. With SQLGlot, you can take a SQL query targeting a warehouse such as Snowflake and seamlessly run it in CI on mock Python data. It's easy to mock data and create arbitrary UDFs because everything is just Python. Although the implementation is slow and unsuitable for large amounts of data (> 1 million rows), there's very little overhead/startup and you can run queries on test data in a couple of milliseconds.

\n\n

Finally, the components that have been built to support execution can be used as a foundation for a faster engine. I'm inspired by what Apache Calcite has done for the JVM world. Even though Python is commonly used for data, there hasn't been a Calcite for Python. So, you could say that SQLGlot aims to be that framework. For example, it wouldn't take much work to replace the Python execution engine with numpy/pandas/arrow to become a respectably-performing query engine. The implementation would be able to leverage the parser, optimizer, and logical planner, only needing to implement physical execution. There is a lot of work in the Python ecosystem around high performance vectorized computation, which I think could benefit from a pure Python-based AST/plan. Parsing and planning doesn't have to be fast when the bottleneck of running queries is processing terabytes of data. So, having a Python-based ecosystem around SQL is beneficial given the ease of development in Python, despite not having bare metal performance.

\n\n

Parts of SQLGlot's toolkit are being used today by the following:

\n\n
    \n
  • Ibis: A Python library that provides a lightweight, universal interface for data wrangling.\n
      \n
    • Uses the Python SQL expression builder and leverages the optimizer/planner to convert SQL into dataframe operations.
    • \n
  • \n
  • mysql-mimic: Pure-Python implementation of the MySQL server wire protocol\n
      \n
    • Parses / transforms SQL and executes INFORMATION_SCHEMA queries.
    • \n
  • \n
  • Quokka: Push-based vectorized query engine\n
      \n
    • Parse and optimizes SQL.
    • \n
  • \n
  • Splink: Fast, accurate and scalable probabilistic data linkage using your choice of SQL backend.\n
      \n
    • Transpiles queries.
    • \n
  • \n
\n\n

How?

\n\n

There are many steps involved with actually running a simple query like:

\n\n
\n
SELECT\n  bar.a,\n  b + 1 AS b\nFROM bar\nJOIN baz\n  ON bar.a = baz.a\nWHERE bar.a > 1\n
\n
\n\n

In this post, I'll walk through all the steps SQLGlot takes to run this query over Python objects.

\n\n

Tokenizing

\n\n

The first step is to convert the sql string into a list of tokens. SQLGlot's tokenizer is quite simple and can be found here. In a while loop, it checks each character and either appends the character to the current token, or makes a new token.

\n\n

Running the SQLGlot tokenizer shows the output.

\n\n

\"Tokenizer

\n\n

Each keyword has been converted to a SQLGlot Token object. Each token has some metadata associated with it, like line/column information for error messages. Comments are also a part of the token, so that comments can be preserved.

\n\n

Parsing

\n\n

Once a SQL statement is tokenized, we don't need to worry about white space and other formatting, so it's easier to work with. We can now convert the list of tokens into an AST. The SQLGlot parser is a handwritten recursive descent parser.

\n\n

Similar to the tokenizer, it consumes the tokens sequentially, but it instead uses a recursive algorithm. The tokens are converted into a single AST node that presents the SQL query. The SQLGlot parser was designed to support various dialects, so it contains many options for overriding parsing functionality.

\n\n

\"Parser

\n\n

The AST is a generic representation of a given SQL query. Each dialect can override or implement its own generator, which can convert an AST object into syntatically-correct SQL.

\n\n

Optimizing

\n\n

Once we have our AST, we can transform it into an equivalent query that produces the same results more efficiently. When optimizing queries, most engines first convert the AST into a logical plan and then optimize the plan. However, I chose to optimize the AST directly for the following reasons:

\n\n
    \n
  1. It's easier to debug and validate the optimizations when the input and output are both SQL.

  2. \n
  3. Rules can be applied a la carte to transform SQL into a more desirable form.

  4. \n
  5. I wanted a way to generate 'canonical sql'. Having a canonical representation of SQL is useful for understanding if two queries are semantically equivalent (e.g. SELECT 1 + 1 and SELECT 2).

  6. \n
\n\n

I've yet to find another engine that takes this approach, but I'm quite happy with this decision. The optimizer currently does not perform any \"physical optimizations\" such as join reordering. Those are left to the execution layer, as additional statistics and information could become relevant.

\n\n

\"Optimizer

\n\n

The optimizer currently has 17 rules. Each of these rules is applied, transforming the AST in place. The combination of these rules creates \"canonical\" sql that can then be more easily converted into a logical plan and executed.

\n\n

Some example rules are:

\n\n

qualify_tables and qualify_columns

\n\n
    \n
  • Adds all db/catalog qualifiers to tables and forces an alias.
  • \n
  • Ensure each column is unambiguous and expand stars.
  • \n
\n\n
\n
SELECT * FROM x;\n\nSELECT "db"."x" AS "x";\n
\n
\n\n

simplify

\n\n

Boolean and math simplification. Check out all the test cases.

\n\n
\n
((NOT FALSE) AND (x = x)) AND (TRUE OR 1 <> 3);\nx = x;\n\n1 + 1;\n2;\n
\n
\n\n

normalize

\n\n

Attempts to convert all predicates into conjunctive normal form.

\n\n
\n
-- DNF\n(A AND B) OR (B AND C AND D);\n\n-- CNF\n(A OR C) AND (A OR D) AND B;\n
\n
\n\n

unnest_subqueries

\n\n

Converts subqueries in predicates into joins.

\n\n
\n
-- The subquery can be converted into a left join\nSELECT *\nFROM x AS x\nWHERE (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE x.a = y.a\n) = 1;\n\nSELECT *\nFROM x AS x\nLEFT JOIN (\n  SELECT y.a AS a\n  FROM y AS y\n  WHERE TRUE\n  GROUP BY y.a\n) AS "_u_0"\n  ON x.a = "_u_0".a\nWHERE ("_u_0".a = 1 AND NOT "_u_0".a IS NULL)\n
\n
\n\n

pushdown_predicates

\n\n

Push down filters into the innermost query.

\n\n
\n
SELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n) AS y\nWHERE y.a = 1;\n\nSELECT *\nFROM (\n  SELECT *\n  FROM x AS x\n  WHERE y.a = 1\n) AS y WHERE TRUE\n
\n
\n\n

annotate_types

\n\n

Infer all types throughout the AST given schema information and function type definitions.

\n\n

Planning

\n\n

After the SQL AST has been \"optimized\", it's much easier to convert into a logical plan. The AST is traversed and converted into a DAG consisting of one of five steps. The different steps are:

\n\n

Scan

\n\n

Selects columns from a table, applies projections, and finally filters the table.

\n\n

Sort

\n\n

Sorts a table for order by expressions.

\n\n

Set

\n\n

Applies the operators union/union all/except/intersect.

\n\n

Aggregate

\n\n

Applies an aggregation/group by.

\n\n

Join

\n\n

Joins multiple tables together.

\n\n

\"Planner

\n\n

The logical plan is quite simple and contains the information required to convert it into a physical plan (execution).

\n\n

Executing

\n\n

Finally, we can actually execute the SQL query. The Python engine is not fast, but it's very small (~400 LOC)! It iterates the DAG with a queue and runs each step, passing each intermediary table to the next step.

\n\n

In order to keep things simple, it evaluates expressions with eval. Because SQLGlot was built primarily to be a transpiler, it was simple to create a \"Python SQL\" dialect. So a SQL expression x + 1 can just be converted into scope['x'] + 1.

\n\n

\"Executor

\n\n

What's next

\n\n

SQLGlot's main focus will always be on parsing/transpiling, but I plan to continue development on the execution engine. I'd like to pass TPC-DS. If someone doesn't beat me to it, I may even take a stab at writing a Pandas/Arrow execution engine.

\n\n

I'm hoping that over time, SQLGlot will spark the Python SQL ecosystem just like Calcite has for Java.

\n\n

Special thanks

\n\n

SQLGlot would not be what it is without it's core contributors. In particular, the execution engine would not exist without Barak Alon and George Sittas.

\n\n

Get in touch

\n\n

If you'd like to chat more about SQLGlot, please join my Slack Channel!

\n\n
\n"}, "sqlglot.executor.execute": {"fullname": "sqlglot.executor.execute", "modulename": "sqlglot.executor", "qualname": "execute", "kind": "function", "doc": "

Run a sql query against data.

\n\n
Arguments:
\n\n
    \n
  • sql: a sql statement.
  • \n
  • schema: database schema.\nThis can either be an instance of Schema or a mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
  • \n
  • read: the SQL dialect to apply during parsing (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • tables: additional tables to register.
  • \n
\n\n
Returns:
\n\n
\n

Simple columnar data structure.

\n
\n", "signature": "(\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tread: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\ttables: Optional[Dict] = None) -> sqlglot.executor.table.Table:", "funcdef": "def"}, "sqlglot.executor.context": {"fullname": "sqlglot.executor.context", "modulename": "sqlglot.executor.context", "kind": "module", "doc": "

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Execution context for sql expressions.

\n\n

Context is used to hold relevant data tables which can then be queried on with eval.

\n\n

References to columns can either be scalar or vectors. When set_row is used, column references\nevaluate to scalars while set_range evaluates to vectors. This allows convenient and efficient\nevaluation of aggregation functions.

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Args\n tables: representing the scope of the current execution context.\n env: dictionary of functions within the execution context.

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Decorator that makes a function return None if any of the required arguments are None.

\n\n

This also supports decoration with no arguments, e.g.:

\n\n
@null_if_any\ndef foo(a, b): ...\n
\n\n

In which case all arguments are required.

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Convert a SQL expression into literal Python code and compile it into bytecode.

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Convert an array of SQL expressions into tuple of Python byte code.

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\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.scan_csv": {"fullname": "sqlglot.executor.python.PythonExecutor.scan_csv", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.scan_csv", "kind": "function", "doc": "

\n", "signature": "(self, step):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.join": {"fullname": "sqlglot.executor.python.PythonExecutor.join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.join", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.nested_loop_join": {"fullname": "sqlglot.executor.python.PythonExecutor.nested_loop_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.nested_loop_join", "kind": "function", "doc": "

\n", "signature": "(self, _join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.hash_join": {"fullname": "sqlglot.executor.python.PythonExecutor.hash_join", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.hash_join", "kind": "function", "doc": "

\n", "signature": "(self, join, source_context, join_context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.aggregate": {"fullname": "sqlglot.executor.python.PythonExecutor.aggregate", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.aggregate", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.sort": {"fullname": "sqlglot.executor.python.PythonExecutor.sort", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.sort", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.PythonExecutor.set_operation": {"fullname": "sqlglot.executor.python.PythonExecutor.set_operation", "modulename": "sqlglot.executor.python", "qualname": "PythonExecutor.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, step, context):", "funcdef": "def"}, "sqlglot.executor.python.Python": {"fullname": "sqlglot.executor.python.Python", "modulename": "sqlglot.executor.python", "qualname": "Python", "kind": "class", "doc": "

\n", "bases": "sqlglot.dialects.dialect.Dialect"}, "sqlglot.executor.python.Python.Tokenizer": {"fullname": "sqlglot.executor.python.Python.Tokenizer", "modulename": "sqlglot.executor.python", "qualname": "Python.Tokenizer", "kind": "class", "doc": "

\n", "bases": "sqlglot.tokens.Tokenizer"}, "sqlglot.executor.python.Python.Generator": {"fullname": "sqlglot.executor.python.Python.Generator", "modulename": "sqlglot.executor.python", "qualname": "Python.Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n", "bases": "sqlglot.generator.Generator"}, "sqlglot.executor.table": {"fullname": "sqlglot.executor.table", "modulename": "sqlglot.executor.table", "kind": "module", "doc": "

\n"}, "sqlglot.executor.table.Table": {"fullname": "sqlglot.executor.table.Table", "modulename": "sqlglot.executor.table", "qualname": "Table", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.Table.__init__": {"fullname": "sqlglot.executor.table.Table.__init__", "modulename": "sqlglot.executor.table", "qualname": "Table.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, rows=None, column_range=None)"}, "sqlglot.executor.table.Table.add_columns": {"fullname": "sqlglot.executor.table.Table.add_columns", "modulename": "sqlglot.executor.table", "qualname": "Table.add_columns", "kind": "function", "doc": "

\n", "signature": "(self, *columns: str) -> None:", "funcdef": "def"}, "sqlglot.executor.table.Table.append": {"fullname": "sqlglot.executor.table.Table.append", "modulename": "sqlglot.executor.table", "qualname": "Table.append", "kind": "function", "doc": "

\n", "signature": "(self, row):", "funcdef": "def"}, "sqlglot.executor.table.Table.pop": {"fullname": "sqlglot.executor.table.Table.pop", "modulename": "sqlglot.executor.table", "qualname": "Table.pop", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.executor.table.TableIter": {"fullname": "sqlglot.executor.table.TableIter", "modulename": "sqlglot.executor.table", "qualname": "TableIter", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.TableIter.__init__": {"fullname": "sqlglot.executor.table.TableIter.__init__", "modulename": "sqlglot.executor.table", "qualname": "TableIter.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RangeReader": {"fullname": "sqlglot.executor.table.RangeReader", "modulename": "sqlglot.executor.table", "qualname": "RangeReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RangeReader.__init__": {"fullname": "sqlglot.executor.table.RangeReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RangeReader.__init__", "kind": "function", "doc": "

\n", "signature": "(table)"}, "sqlglot.executor.table.RowReader": {"fullname": "sqlglot.executor.table.RowReader", "modulename": "sqlglot.executor.table", "qualname": "RowReader", "kind": "class", "doc": "

\n"}, "sqlglot.executor.table.RowReader.__init__": {"fullname": "sqlglot.executor.table.RowReader.__init__", "modulename": "sqlglot.executor.table", "qualname": "RowReader.__init__", "kind": "function", "doc": "

\n", "signature": "(columns, column_range=None)"}, "sqlglot.executor.table.Tables": {"fullname": "sqlglot.executor.table.Tables", "modulename": "sqlglot.executor.table", "qualname": "Tables", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "sqlglot.schema.AbstractMappingSchema[sqlglot.executor.table.Table]"}, "sqlglot.executor.table.ensure_tables": {"fullname": "sqlglot.executor.table.ensure_tables", "modulename": "sqlglot.executor.table", "qualname": "ensure_tables", "kind": "function", "doc": "

\n", "signature": "(d: Optional[Dict]) -> sqlglot.executor.table.Tables:", "funcdef": "def"}, "sqlglot.expressions": {"fullname": "sqlglot.expressions", "modulename": "sqlglot.expressions", "kind": "module", "doc": "

Expressions

\n\n

Every AST node in SQLGlot is represented by a subclass of Expression.

\n\n

This module contains the implementation of all supported Expression types. Additionally,\nit exposes a number of helper functions, which are mainly used to programmatically build\nSQL expressions, such as sqlglot.expressions.select.

\n\n
\n"}, "sqlglot.expressions.Expression": {"fullname": "sqlglot.expressions.Expression", "modulename": "sqlglot.expressions", "qualname": "Expression", "kind": "class", "doc": "

The base class for all expressions in a syntax tree. Each Expression encapsulates any necessary\ncontext, such as its child expressions, their names (arg keys), and whether a given child expression\nis optional or not.

\n\n
Attributes:
\n\n
    \n
  • key: a unique key for each class in the Expression hierarchy. This is useful for hashing\nand representing expressions as strings.
  • \n
  • arg_types: determines what arguments (child nodes) are supported by an expression. It\nmaps arg keys to booleans that indicate whether the corresponding args are optional.
  • \n
\n\n
Example:
\n\n
\n
\n
>>> class Foo(Expression):\n...     arg_types = {"this": True, "expression": False}\n
\n
\n \n

The above definition informs us that Foo is an Expression that requires an argument called\n \"this\" and may also optionally receive an argument called \"expression\".

\n
\n\n
Arguments:
\n\n
    \n
  • args: a mapping used for retrieving the arguments of an expression, given their arg keys.
  • \n
  • parent: a reference to the parent expression (or None, in case of root expressions).
  • \n
  • arg_key: the arg key an expression is associated with, i.e. the name its parent expression\nuses to refer to it.
  • \n
  • comments: a list of comments that are associated with a given expression. This is used in\norder to preserve comments when transpiling SQL code.
  • \n
  • _type: the sqlglot.expressions.DataType type of an expression. This is inferred by the\noptimizer, in order to enable some transformations that require type information.
  • \n
\n"}, "sqlglot.expressions.Expression.__init__": {"fullname": "sqlglot.expressions.Expression.__init__", "modulename": "sqlglot.expressions", "qualname": "Expression.__init__", "kind": "function", "doc": "

\n", "signature": "(**args: Any)"}, "sqlglot.expressions.Expression.this": {"fullname": "sqlglot.expressions.Expression.this", "modulename": "sqlglot.expressions", "qualname": "Expression.this", "kind": "variable", "doc": "

Retrieves the argument with key \"this\".

\n"}, "sqlglot.expressions.Expression.expression": {"fullname": "sqlglot.expressions.Expression.expression", "modulename": "sqlglot.expressions", "qualname": "Expression.expression", "kind": "variable", "doc": "

Retrieves the argument with key \"expression\".

\n"}, "sqlglot.expressions.Expression.expressions": {"fullname": "sqlglot.expressions.Expression.expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.expressions", "kind": "variable", "doc": "

Retrieves the argument with key \"expressions\".

\n"}, "sqlglot.expressions.Expression.text": {"fullname": "sqlglot.expressions.Expression.text", "modulename": "sqlglot.expressions", "qualname": "Expression.text", "kind": "function", "doc": "

Returns a textual representation of the argument corresponding to \"key\". This can only be used\nfor args that are strings or leaf Expression instances, such as identifiers and literals.

\n", "signature": "(self, key) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.is_string": {"fullname": "sqlglot.expressions.Expression.is_string", "modulename": "sqlglot.expressions", "qualname": "Expression.is_string", "kind": "variable", "doc": "

Checks whether a Literal expression is a string.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_number": {"fullname": "sqlglot.expressions.Expression.is_number", "modulename": "sqlglot.expressions", "qualname": "Expression.is_number", "kind": "variable", "doc": "

Checks whether a Literal expression is a number.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_int": {"fullname": "sqlglot.expressions.Expression.is_int", "modulename": "sqlglot.expressions", "qualname": "Expression.is_int", "kind": "variable", "doc": "

Checks whether a Literal expression is an integer.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.is_star": {"fullname": "sqlglot.expressions.Expression.is_star", "modulename": "sqlglot.expressions", "qualname": "Expression.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Expression.alias": {"fullname": "sqlglot.expressions.Expression.alias", "modulename": "sqlglot.expressions", "qualname": "Expression.alias", "kind": "variable", "doc": "

Returns the alias of the expression, or an empty string if it's not aliased.

\n", "annotation": ": str"}, "sqlglot.expressions.Expression.output_name": {"fullname": "sqlglot.expressions.Expression.output_name", "modulename": "sqlglot.expressions", "qualname": "Expression.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Expression.copy": {"fullname": "sqlglot.expressions.Expression.copy", "modulename": "sqlglot.expressions", "qualname": "Expression.copy", "kind": "function", "doc": "

Returns a deep copy of the expression.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.append": {"fullname": "sqlglot.expressions.Expression.append", "modulename": "sqlglot.expressions", "qualname": "Expression.append", "kind": "function", "doc": "

Appends value to arg_key if it's a list or sets it as a new list.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the list expression arg
  • \n
  • value (Any): value to append to the list
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.set": {"fullname": "sqlglot.expressions.Expression.set", "modulename": "sqlglot.expressions", "qualname": "Expression.set", "kind": "function", "doc": "

Sets arg_key to value.

\n\n
Arguments:
\n\n
    \n
  • arg_key (str): name of the expression arg.
  • \n
  • value: value to set the arg to.
  • \n
\n", "signature": "(self, arg_key, value):", "funcdef": "def"}, "sqlglot.expressions.Expression.depth": {"fullname": "sqlglot.expressions.Expression.depth", "modulename": "sqlglot.expressions", "qualname": "Expression.depth", "kind": "variable", "doc": "

Returns the depth of this tree.

\n"}, "sqlglot.expressions.Expression.iter_expressions": {"fullname": "sqlglot.expressions.Expression.iter_expressions", "modulename": "sqlglot.expressions", "qualname": "Expression.iter_expressions", "kind": "function", "doc": "

Yields the key and expression for all arguments, exploding list args.

\n", "signature": "(self) -> Iterator[Tuple[str, sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find": {"fullname": "sqlglot.expressions.Expression.find", "modulename": "sqlglot.expressions", "qualname": "Expression.find", "kind": "function", "doc": "

Returns the first node in this tree which matches at least one of\nthe specified types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The node which matches the criteria or None if no such node was found.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_all": {"fullname": "sqlglot.expressions.Expression.find_all", "modulename": "sqlglot.expressions", "qualname": "Expression.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree and only\nyields those that match at least one of the specified expression types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, *expression_types: Type[~E], bfs=True) -> Iterator[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.find_ancestor": {"fullname": "sqlglot.expressions.Expression.find_ancestor", "modulename": "sqlglot.expressions", "qualname": "Expression.find_ancestor", "kind": "function", "doc": "

Returns a nearest parent matching expression_types.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to match.
  • \n
\n\n
Returns:
\n\n
\n

The parent node.

\n
\n", "signature": "(self, *expression_types: Type[~E]) -> Optional[~E]:", "funcdef": "def"}, "sqlglot.expressions.Expression.parent_select": {"fullname": "sqlglot.expressions.Expression.parent_select", "modulename": "sqlglot.expressions", "qualname": "Expression.parent_select", "kind": "variable", "doc": "

Returns the parent select statement.

\n"}, "sqlglot.expressions.Expression.same_parent": {"fullname": "sqlglot.expressions.Expression.same_parent", "modulename": "sqlglot.expressions", "qualname": "Expression.same_parent", "kind": "variable", "doc": "

Returns if the parent is the same class as itself.

\n"}, "sqlglot.expressions.Expression.root": {"fullname": "sqlglot.expressions.Expression.root", "modulename": "sqlglot.expressions", "qualname": "Expression.root", "kind": "function", "doc": "

Returns the root expression of this tree.

\n", "signature": "(self) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.Expression.walk": {"fullname": "sqlglot.expressions.Expression.walk", "modulename": "sqlglot.expressions", "qualname": "Expression.walk", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree.

\n\n
Arguments:
\n\n
    \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
  • prune ((node, parent, arg_key) -> bool): callable that returns True if\nthe generator should stop traversing this branch of the tree.
  • \n
\n\n
Returns:
\n\n
\n

the generator object.

\n
\n", "signature": "(self, bfs=True, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.dfs": {"fullname": "sqlglot.expressions.Expression.dfs", "modulename": "sqlglot.expressions", "qualname": "Expression.dfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe DFS (Depth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, parent=None, key=None, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.bfs": {"fullname": "sqlglot.expressions.Expression.bfs", "modulename": "sqlglot.expressions", "qualname": "Expression.bfs", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this tree in\nthe BFS (Breadth-first) order.

\n\n
Returns:
\n\n
\n

The generator object.

\n
\n", "signature": "(self, prune=None):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest": {"fullname": "sqlglot.expressions.Expression.unnest", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest", "kind": "function", "doc": "

Returns the first non parenthesis child or self.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unalias": {"fullname": "sqlglot.expressions.Expression.unalias", "modulename": "sqlglot.expressions", "qualname": "Expression.unalias", "kind": "function", "doc": "

Returns the inner expression if this is an Alias.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.unnest_operands": {"fullname": "sqlglot.expressions.Expression.unnest_operands", "modulename": "sqlglot.expressions", "qualname": "Expression.unnest_operands", "kind": "function", "doc": "

Returns unnested operands as a tuple.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.flatten": {"fullname": "sqlglot.expressions.Expression.flatten", "modulename": "sqlglot.expressions", "qualname": "Expression.flatten", "kind": "function", "doc": "

Returns a generator which yields child nodes who's parents are the same class.

\n\n

A AND B AND C -> [A, B, C]

\n", "signature": "(self, unnest=True):", "funcdef": "def"}, "sqlglot.expressions.Expression.sql": {"fullname": "sqlglot.expressions.Expression.sql", "modulename": "sqlglot.expressions", "qualname": "Expression.sql", "kind": "function", "doc": "

Returns SQL string representation of this tree.

\n\n
Arguments:
\n\n
    \n
  • dialect: the dialect of the output SQL string (eg. \"spark\", \"hive\", \"presto\", \"mysql\").
  • \n
  • opts: other sqlglot.generator.Generator options.
  • \n
\n\n
Returns:
\n\n
\n

The SQL string.

\n
\n", "signature": "(\tself,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> str:", "funcdef": "def"}, "sqlglot.expressions.Expression.transform": {"fullname": "sqlglot.expressions.Expression.transform", "modulename": "sqlglot.expressions", "qualname": "Expression.transform", "kind": "function", "doc": "

Recursively visits all tree nodes (excluding already transformed ones)\nand applies the given transformation function to each node.

\n\n
Arguments:
\n\n
    \n
  • fun (function): a function which takes a node as an argument and returns a\nnew transformed node or the same node without modifications. If the function\nreturns None, then the corresponding node will be removed from the syntax tree.
  • \n
  • copy (bool): if set to True a new tree instance is constructed, otherwise the tree is\nmodified in place.
  • \n
\n\n
Returns:
\n\n
\n

The transformed tree.

\n
\n", "signature": "(self, fun, *args, copy=True, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.Expression.replace": {"fullname": "sqlglot.expressions.Expression.replace", "modulename": "sqlglot.expressions", "qualname": "Expression.replace", "kind": "function", "doc": "

Swap out this expression with a new expression.

\n\n

For example::

\n\n
>>> tree = Select().select(\"x\").from_(\"tbl\")\n>>> tree.find(Column).replace(Column(this=\"y\"))\n(COLUMN this: y)\n>>> tree.sql()\n'SELECT y FROM tbl'\n
\n\n
Arguments:
\n\n
    \n
  • expression (Expression|None): new node
  • \n
\n\n
Returns:
\n\n
\n

The new expression or expressions.

\n
\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.expressions.Expression.pop": {"fullname": "sqlglot.expressions.Expression.pop", "modulename": "sqlglot.expressions", "qualname": "Expression.pop", "kind": "function", "doc": "

Remove this expression from its AST.

\n\n
Returns:
\n\n
\n

The popped expression.

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.assert_is": {"fullname": "sqlglot.expressions.Expression.assert_is", "modulename": "sqlglot.expressions", "qualname": "Expression.assert_is", "kind": "function", "doc": "

Assert that this Expression is an instance of type_.

\n\n

If it is NOT an instance of type_, this raises an assertion error.\nOtherwise, this returns this expression.

\n\n
Examples:
\n\n
\n

This is useful for type security in chained expressions:

\n \n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT x from y").assert_is(Select).select("z").sql()\n'SELECT x, z FROM y'\n
\n
\n
\n", "signature": "(self, type_):", "funcdef": "def"}, "sqlglot.expressions.Expression.error_messages": {"fullname": "sqlglot.expressions.Expression.error_messages", "modulename": "sqlglot.expressions", "qualname": "Expression.error_messages", "kind": "function", "doc": "

Checks if this expression is valid (e.g. all mandatory args are set).

\n\n
Arguments:
\n\n
    \n
  • args: a sequence of values that were used to instantiate a Func expression. This is used\nto check that the provided arguments don't exceed the function argument limit.
  • \n
\n\n
Returns:
\n\n
\n

A list of error messages for all possible errors that were found.

\n
\n", "signature": "(self, args: Optional[Sequence] = None) -> List[str]:", "funcdef": "def"}, "sqlglot.expressions.Expression.dump": {"fullname": "sqlglot.expressions.Expression.dump", "modulename": "sqlglot.expressions", "qualname": "Expression.dump", "kind": "function", "doc": "

Dump this Expression to a JSON-serializable dict.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Expression.load": {"fullname": "sqlglot.expressions.Expression.load", "modulename": "sqlglot.expressions", "qualname": "Expression.load", "kind": "function", "doc": "

Load a dict (as returned by Expression.dump) into an Expression instance.

\n", "signature": "(cls, obj):", "funcdef": "def"}, "sqlglot.expressions.Condition": {"fullname": "sqlglot.expressions.Condition", "modulename": "sqlglot.expressions", "qualname": "Condition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Condition.and_": {"fullname": "sqlglot.expressions.Condition.and_", "modulename": "sqlglot.expressions", "qualname": "Condition.and_", "kind": "function", "doc": "

AND this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").and_("y=1").sql()\n'x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.or_": {"fullname": "sqlglot.expressions.Condition.or_", "modulename": "sqlglot.expressions", "qualname": "Condition.or_", "kind": "function", "doc": "

OR this condition with one or multiple expressions.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").or_("y=1").sql()\n'x = 1 OR y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition.

\n
\n", "signature": "(self, *expressions, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Condition.not_": {"fullname": "sqlglot.expressions.Condition.not_", "modulename": "sqlglot.expressions", "qualname": "Condition.not_", "kind": "function", "doc": "

Wrap this condition with NOT.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").not_().sql()\n'NOT x = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • copy (bool): whether or not to copy this object.
  • \n
\n\n
Returns:
\n\n
\n

Not: the new condition.

\n
\n", "signature": "(self, copy=True):", "funcdef": "def"}, "sqlglot.expressions.Condition.isin": {"fullname": "sqlglot.expressions.Condition.isin", "modulename": "sqlglot.expressions", "qualname": "Condition.isin", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions: Any,\tquery: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tcopy=True,\t**opts) -> sqlglot.expressions.In:", "funcdef": "def"}, "sqlglot.expressions.Condition.between": {"fullname": "sqlglot.expressions.Condition.between", "modulename": "sqlglot.expressions", "qualname": "Condition.between", "kind": "function", "doc": "

\n", "signature": "(\tself,\tlow: Any,\thigh: Any,\tcopy=True,\t**opts) -> sqlglot.expressions.Between:", "funcdef": "def"}, "sqlglot.expressions.Condition.like": {"fullname": "sqlglot.expressions.Condition.like", "modulename": "sqlglot.expressions", "qualname": "Condition.like", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.Like:", "funcdef": "def"}, "sqlglot.expressions.Condition.ilike": {"fullname": "sqlglot.expressions.Condition.ilike", "modulename": "sqlglot.expressions", "qualname": "Condition.ilike", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.ILike:", "funcdef": "def"}, "sqlglot.expressions.Condition.eq": {"fullname": "sqlglot.expressions.Condition.eq", "modulename": "sqlglot.expressions", "qualname": "Condition.eq", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.EQ:", "funcdef": "def"}, "sqlglot.expressions.Condition.neq": {"fullname": "sqlglot.expressions.Condition.neq", "modulename": "sqlglot.expressions", "qualname": "Condition.neq", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.NEQ:", "funcdef": "def"}, "sqlglot.expressions.Condition.rlike": {"fullname": "sqlglot.expressions.Condition.rlike", "modulename": "sqlglot.expressions", "qualname": "Condition.rlike", "kind": "function", "doc": "

\n", "signature": "(\tself,\tother: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.RegexpLike:", "funcdef": "def"}, "sqlglot.expressions.Predicate": {"fullname": "sqlglot.expressions.Predicate", "modulename": "sqlglot.expressions", "qualname": "Predicate", "kind": "class", "doc": "

Relationships like x = y, x > 1, x >= y.

\n", "bases": "Condition"}, "sqlglot.expressions.DerivedTable": {"fullname": "sqlglot.expressions.DerivedTable", "modulename": "sqlglot.expressions", "qualname": "DerivedTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable": {"fullname": "sqlglot.expressions.Unionable", "modulename": "sqlglot.expressions", "qualname": "Unionable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unionable.union": {"fullname": "sqlglot.expressions.Unionable.union", "modulename": "sqlglot.expressions", "qualname": "Unionable.union", "kind": "function", "doc": "

Builds a UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the Union expression.

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.intersect": {"fullname": "sqlglot.expressions.Unionable.intersect", "modulename": "sqlglot.expressions", "qualname": "Unionable.intersect", "kind": "function", "doc": "

Builds an INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the Intersect expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.Unionable.except_": {"fullname": "sqlglot.expressions.Unionable.except_", "modulename": "sqlglot.expressions", "qualname": "Unionable.except_", "kind": "function", "doc": "

Builds an EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the Except expression

\n
\n", "signature": "(self, expression, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.UDTF": {"fullname": "sqlglot.expressions.UDTF", "modulename": "sqlglot.expressions", "qualname": "UDTF", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Cache": {"fullname": "sqlglot.expressions.Cache", "modulename": "sqlglot.expressions", "qualname": "Cache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Uncache": {"fullname": "sqlglot.expressions.Uncache", "modulename": "sqlglot.expressions", "qualname": "Uncache", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Create": {"fullname": "sqlglot.expressions.Create", "modulename": "sqlglot.expressions", "qualname": "Create", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Describe": {"fullname": "sqlglot.expressions.Describe", "modulename": "sqlglot.expressions", "qualname": "Describe", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Pragma": {"fullname": "sqlglot.expressions.Pragma", "modulename": "sqlglot.expressions", "qualname": "Pragma", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Set": {"fullname": "sqlglot.expressions.Set", "modulename": "sqlglot.expressions", "qualname": "Set", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetItem": {"fullname": "sqlglot.expressions.SetItem", "modulename": "sqlglot.expressions", "qualname": "SetItem", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Show": {"fullname": "sqlglot.expressions.Show", "modulename": "sqlglot.expressions", "qualname": "Show", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.UserDefinedFunction": {"fullname": "sqlglot.expressions.UserDefinedFunction", "modulename": "sqlglot.expressions", "qualname": "UserDefinedFunction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CharacterSet": {"fullname": "sqlglot.expressions.CharacterSet", "modulename": "sqlglot.expressions", "qualname": "CharacterSet", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.With": {"fullname": "sqlglot.expressions.With", "modulename": "sqlglot.expressions", "qualname": "With", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WithinGroup": {"fullname": "sqlglot.expressions.WithinGroup", "modulename": "sqlglot.expressions", "qualname": "WithinGroup", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.CTE": {"fullname": "sqlglot.expressions.CTE", "modulename": "sqlglot.expressions", "qualname": "CTE", "kind": "class", "doc": "

\n", "bases": "DerivedTable"}, "sqlglot.expressions.TableAlias": {"fullname": "sqlglot.expressions.TableAlias", "modulename": "sqlglot.expressions", "qualname": "TableAlias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.BitString": {"fullname": "sqlglot.expressions.BitString", "modulename": "sqlglot.expressions", "qualname": "BitString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.HexString": {"fullname": "sqlglot.expressions.HexString", "modulename": "sqlglot.expressions", "qualname": "HexString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.ByteString": {"fullname": "sqlglot.expressions.ByteString", "modulename": "sqlglot.expressions", "qualname": "ByteString", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column": {"fullname": "sqlglot.expressions.Column", "modulename": "sqlglot.expressions", "qualname": "Column", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Column.output_name": {"fullname": "sqlglot.expressions.Column.output_name", "modulename": "sqlglot.expressions", "qualname": "Column.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n", "annotation": ": str"}, "sqlglot.expressions.Column.parts": {"fullname": "sqlglot.expressions.Column.parts", "modulename": "sqlglot.expressions", "qualname": "Column.parts", "kind": "variable", "doc": "

Return the parts of a column in order catalog, db, table, name.

\n", "annotation": ": List[sqlglot.expressions.Identifier]"}, "sqlglot.expressions.Column.to_dot": {"fullname": "sqlglot.expressions.Column.to_dot", "modulename": "sqlglot.expressions", "qualname": "Column.to_dot", "kind": "function", "doc": "

Converts the column into a dot expression.

\n", "signature": "(self) -> sqlglot.expressions.Dot:", "funcdef": "def"}, "sqlglot.expressions.ColumnPosition": {"fullname": "sqlglot.expressions.ColumnPosition", "modulename": "sqlglot.expressions", "qualname": "ColumnPosition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnDef": {"fullname": "sqlglot.expressions.ColumnDef", "modulename": "sqlglot.expressions", "qualname": "ColumnDef", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterColumn": {"fullname": "sqlglot.expressions.AlterColumn", "modulename": "sqlglot.expressions", "qualname": "AlterColumn", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RenameTable": {"fullname": "sqlglot.expressions.RenameTable", "modulename": "sqlglot.expressions", "qualname": "RenameTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SetTag": {"fullname": "sqlglot.expressions.SetTag", "modulename": "sqlglot.expressions", "qualname": "SetTag", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Comment": {"fullname": "sqlglot.expressions.Comment", "modulename": "sqlglot.expressions", "qualname": "Comment", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraint": {"fullname": "sqlglot.expressions.ColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ColumnConstraintKind": {"fullname": "sqlglot.expressions.ColumnConstraintKind", "modulename": "sqlglot.expressions", "qualname": "ColumnConstraintKind", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AutoIncrementColumnConstraint": {"fullname": "sqlglot.expressions.AutoIncrementColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CaseSpecificColumnConstraint": {"fullname": "sqlglot.expressions.CaseSpecificColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CaseSpecificColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CharacterSetColumnConstraint": {"fullname": "sqlglot.expressions.CharacterSetColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CharacterSetColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CheckColumnConstraint": {"fullname": "sqlglot.expressions.CheckColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CheckColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CollateColumnConstraint": {"fullname": "sqlglot.expressions.CollateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CollateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CommentColumnConstraint": {"fullname": "sqlglot.expressions.CommentColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CommentColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.CompressColumnConstraint": {"fullname": "sqlglot.expressions.CompressColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "CompressColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DateFormatColumnConstraint": {"fullname": "sqlglot.expressions.DateFormatColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DateFormatColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.DefaultColumnConstraint": {"fullname": "sqlglot.expressions.DefaultColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "DefaultColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.EncodeColumnConstraint": {"fullname": "sqlglot.expressions.EncodeColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "EncodeColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.GeneratedAsIdentityColumnConstraint": {"fullname": "sqlglot.expressions.GeneratedAsIdentityColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "GeneratedAsIdentityColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.InlineLengthColumnConstraint": {"fullname": "sqlglot.expressions.InlineLengthColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "InlineLengthColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.NotNullColumnConstraint": {"fullname": "sqlglot.expressions.NotNullColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "NotNullColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.OnUpdateColumnConstraint": {"fullname": "sqlglot.expressions.OnUpdateColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "OnUpdateColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PrimaryKeyColumnConstraint": {"fullname": "sqlglot.expressions.PrimaryKeyColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PrimaryKeyColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.TitleColumnConstraint": {"fullname": "sqlglot.expressions.TitleColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "TitleColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UniqueColumnConstraint": {"fullname": "sqlglot.expressions.UniqueColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UniqueColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.UppercaseColumnConstraint": {"fullname": "sqlglot.expressions.UppercaseColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "UppercaseColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.PathColumnConstraint": {"fullname": "sqlglot.expressions.PathColumnConstraint", "modulename": "sqlglot.expressions", "qualname": "PathColumnConstraint", "kind": "class", "doc": "

\n", "bases": "ColumnConstraintKind"}, "sqlglot.expressions.Constraint": {"fullname": "sqlglot.expressions.Constraint", "modulename": "sqlglot.expressions", "qualname": "Constraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete": {"fullname": "sqlglot.expressions.Delete", "modulename": "sqlglot.expressions", "qualname": "Delete", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Delete.delete": {"fullname": "sqlglot.expressions.Delete.delete", "modulename": "sqlglot.expressions", "qualname": "Delete.delete", "kind": "function", "doc": "

Create a DELETE expression or replace the table on an existing DELETE expression.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").sql()\n'DELETE FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table: the table from which to delete.
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\ttable: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.where": {"fullname": "sqlglot.expressions.Delete.where", "modulename": "sqlglot.expressions", "qualname": "Delete.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").where("x = 'a' OR x < 'b'").sql()\n"DELETE FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append: if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Delete.returning": {"fullname": "sqlglot.expressions.Delete.returning", "modulename": "sqlglot.expressions", "qualname": "Delete.returning", "kind": "function", "doc": "

Set the RETURNING expression. Not supported by all dialects.

\n\n
Example:
\n\n
\n
\n
>>> delete("tbl").returning("*", dialect="postgres").sql()\n'DELETE FROM tbl RETURNING *'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the modified expression.

\n
\n", "signature": "(\tself,\texpression: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.Drop": {"fullname": "sqlglot.expressions.Drop", "modulename": "sqlglot.expressions", "qualname": "Drop", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Filter": {"fullname": "sqlglot.expressions.Filter", "modulename": "sqlglot.expressions", "qualname": "Filter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Check": {"fullname": "sqlglot.expressions.Check", "modulename": "sqlglot.expressions", "qualname": "Check", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Directory": {"fullname": "sqlglot.expressions.Directory", "modulename": "sqlglot.expressions", "qualname": "Directory", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.ForeignKey": {"fullname": "sqlglot.expressions.ForeignKey", "modulename": "sqlglot.expressions", "qualname": "ForeignKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.PrimaryKey": {"fullname": "sqlglot.expressions.PrimaryKey", "modulename": "sqlglot.expressions", "qualname": "PrimaryKey", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Unique": {"fullname": "sqlglot.expressions.Unique", "modulename": "sqlglot.expressions", "qualname": "Unique", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Into": {"fullname": "sqlglot.expressions.Into", "modulename": "sqlglot.expressions", "qualname": "Into", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.From": {"fullname": "sqlglot.expressions.From", "modulename": "sqlglot.expressions", "qualname": "From", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Having": {"fullname": "sqlglot.expressions.Having", "modulename": "sqlglot.expressions", "qualname": "Having", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Hint": {"fullname": "sqlglot.expressions.Hint", "modulename": "sqlglot.expressions", "qualname": "Hint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JoinHint": {"fullname": "sqlglot.expressions.JoinHint", "modulename": "sqlglot.expressions", "qualname": "JoinHint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier": {"fullname": "sqlglot.expressions.Identifier", "modulename": "sqlglot.expressions", "qualname": "Identifier", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Identifier.output_name": {"fullname": "sqlglot.expressions.Identifier.output_name", "modulename": "sqlglot.expressions", "qualname": "Identifier.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Index": {"fullname": "sqlglot.expressions.Index", "modulename": "sqlglot.expressions", "qualname": "Index", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Insert": {"fullname": "sqlglot.expressions.Insert", "modulename": "sqlglot.expressions", "qualname": "Insert", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.OnConflict": {"fullname": "sqlglot.expressions.OnConflict", "modulename": "sqlglot.expressions", "qualname": "OnConflict", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Returning": {"fullname": "sqlglot.expressions.Returning", "modulename": "sqlglot.expressions", "qualname": "Returning", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Introducer": {"fullname": "sqlglot.expressions.Introducer", "modulename": "sqlglot.expressions", "qualname": "Introducer", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.National": {"fullname": "sqlglot.expressions.National", "modulename": "sqlglot.expressions", "qualname": "National", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.LoadData": {"fullname": "sqlglot.expressions.LoadData", "modulename": "sqlglot.expressions", "qualname": "LoadData", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Partition": {"fullname": "sqlglot.expressions.Partition", "modulename": "sqlglot.expressions", "qualname": "Partition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Fetch": {"fullname": "sqlglot.expressions.Fetch", "modulename": "sqlglot.expressions", "qualname": "Fetch", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Group": {"fullname": "sqlglot.expressions.Group", "modulename": "sqlglot.expressions", "qualname": "Group", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lambda": {"fullname": "sqlglot.expressions.Lambda", "modulename": "sqlglot.expressions", "qualname": "Lambda", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Limit": {"fullname": "sqlglot.expressions.Limit", "modulename": "sqlglot.expressions", "qualname": "Limit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Literal": {"fullname": "sqlglot.expressions.Literal", "modulename": "sqlglot.expressions", "qualname": "Literal", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Literal.number": {"fullname": "sqlglot.expressions.Literal.number", "modulename": "sqlglot.expressions", "qualname": "Literal.number", "kind": "function", "doc": "

\n", "signature": "(cls, number) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.string": {"fullname": "sqlglot.expressions.Literal.string", "modulename": "sqlglot.expressions", "qualname": "Literal.string", "kind": "function", "doc": "

\n", "signature": "(cls, string) -> sqlglot.expressions.Literal:", "funcdef": "def"}, "sqlglot.expressions.Literal.output_name": {"fullname": "sqlglot.expressions.Literal.output_name", "modulename": "sqlglot.expressions", "qualname": "Literal.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Join": {"fullname": "sqlglot.expressions.Join", "modulename": "sqlglot.expressions", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Join.on": {"fullname": "sqlglot.expressions.Join.on", "modulename": "sqlglot.expressions", "qualname": "Join.on", "kind": "function", "doc": "

Append to or set the ON expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()\n'JOIN x ON y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Join.using": {"fullname": "sqlglot.expressions.Join.using", "modulename": "sqlglot.expressions", "qualname": "Join.using", "kind": "function", "doc": "

Append to or set the USING expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()\n'JOIN x USING (foo, bla)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, concatenate the new expressions to the existing \"using\" list.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Join: the modified join expression.

\n
\n", "signature": "(self, *expressions, append=True, dialect=None, copy=True, **opts):", "funcdef": "def"}, "sqlglot.expressions.Lateral": {"fullname": "sqlglot.expressions.Lateral", "modulename": "sqlglot.expressions", "qualname": "Lateral", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.MatchRecognize": {"fullname": "sqlglot.expressions.MatchRecognize", "modulename": "sqlglot.expressions", "qualname": "MatchRecognize", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Final": {"fullname": "sqlglot.expressions.Final", "modulename": "sqlglot.expressions", "qualname": "Final", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Offset": {"fullname": "sqlglot.expressions.Offset", "modulename": "sqlglot.expressions", "qualname": "Offset", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Order": {"fullname": "sqlglot.expressions.Order", "modulename": "sqlglot.expressions", "qualname": "Order", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Cluster": {"fullname": "sqlglot.expressions.Cluster", "modulename": "sqlglot.expressions", "qualname": "Cluster", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Distribute": {"fullname": "sqlglot.expressions.Distribute", "modulename": "sqlglot.expressions", "qualname": "Distribute", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Sort": {"fullname": "sqlglot.expressions.Sort", "modulename": "sqlglot.expressions", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Order"}, "sqlglot.expressions.Ordered": {"fullname": "sqlglot.expressions.Ordered", "modulename": "sqlglot.expressions", "qualname": "Ordered", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Property": {"fullname": "sqlglot.expressions.Property", "modulename": "sqlglot.expressions", "qualname": "Property", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AfterJournalProperty": {"fullname": "sqlglot.expressions.AfterJournalProperty", "modulename": "sqlglot.expressions", "qualname": "AfterJournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AlgorithmProperty": {"fullname": "sqlglot.expressions.AlgorithmProperty", "modulename": "sqlglot.expressions", "qualname": "AlgorithmProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.AutoIncrementProperty": {"fullname": "sqlglot.expressions.AutoIncrementProperty", "modulename": "sqlglot.expressions", "qualname": "AutoIncrementProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.BlockCompressionProperty": {"fullname": "sqlglot.expressions.BlockCompressionProperty", "modulename": "sqlglot.expressions", "qualname": "BlockCompressionProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CharacterSetProperty": {"fullname": "sqlglot.expressions.CharacterSetProperty", "modulename": "sqlglot.expressions", "qualname": "CharacterSetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ChecksumProperty": {"fullname": "sqlglot.expressions.ChecksumProperty", "modulename": "sqlglot.expressions", "qualname": "ChecksumProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.CollateProperty": {"fullname": "sqlglot.expressions.CollateProperty", "modulename": "sqlglot.expressions", "qualname": "CollateProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DataBlocksizeProperty": {"fullname": "sqlglot.expressions.DataBlocksizeProperty", "modulename": "sqlglot.expressions", "qualname": "DataBlocksizeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DefinerProperty": {"fullname": "sqlglot.expressions.DefinerProperty", "modulename": "sqlglot.expressions", "qualname": "DefinerProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistKeyProperty": {"fullname": "sqlglot.expressions.DistKeyProperty", "modulename": "sqlglot.expressions", "qualname": "DistKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.DistStyleProperty": {"fullname": "sqlglot.expressions.DistStyleProperty", "modulename": "sqlglot.expressions", "qualname": "DistStyleProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.EngineProperty": {"fullname": "sqlglot.expressions.EngineProperty", "modulename": "sqlglot.expressions", "qualname": "EngineProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExecuteAsProperty": {"fullname": "sqlglot.expressions.ExecuteAsProperty", "modulename": "sqlglot.expressions", "qualname": "ExecuteAsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ExternalProperty": {"fullname": "sqlglot.expressions.ExternalProperty", "modulename": "sqlglot.expressions", "qualname": "ExternalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FallbackProperty": {"fullname": "sqlglot.expressions.FallbackProperty", "modulename": "sqlglot.expressions", "qualname": "FallbackProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FileFormatProperty": {"fullname": "sqlglot.expressions.FileFormatProperty", "modulename": "sqlglot.expressions", "qualname": "FileFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.FreespaceProperty": {"fullname": "sqlglot.expressions.FreespaceProperty", "modulename": "sqlglot.expressions", "qualname": "FreespaceProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.InputOutputFormat": {"fullname": "sqlglot.expressions.InputOutputFormat", "modulename": "sqlglot.expressions", "qualname": "InputOutputFormat", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.IsolatedLoadingProperty": {"fullname": "sqlglot.expressions.IsolatedLoadingProperty", "modulename": "sqlglot.expressions", "qualname": "IsolatedLoadingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.JournalProperty": {"fullname": "sqlglot.expressions.JournalProperty", "modulename": "sqlglot.expressions", "qualname": "JournalProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LanguageProperty": {"fullname": "sqlglot.expressions.LanguageProperty", "modulename": "sqlglot.expressions", "qualname": "LanguageProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LikeProperty": {"fullname": "sqlglot.expressions.LikeProperty", "modulename": "sqlglot.expressions", "qualname": "LikeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LocationProperty": {"fullname": "sqlglot.expressions.LocationProperty", "modulename": "sqlglot.expressions", "qualname": "LocationProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LockingProperty": {"fullname": "sqlglot.expressions.LockingProperty", "modulename": "sqlglot.expressions", "qualname": "LockingProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.LogProperty": {"fullname": "sqlglot.expressions.LogProperty", "modulename": "sqlglot.expressions", "qualname": "LogProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MaterializedProperty": {"fullname": "sqlglot.expressions.MaterializedProperty", "modulename": "sqlglot.expressions", "qualname": "MaterializedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.MergeBlockRatioProperty": {"fullname": "sqlglot.expressions.MergeBlockRatioProperty", "modulename": "sqlglot.expressions", "qualname": "MergeBlockRatioProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.NoPrimaryIndexProperty": {"fullname": "sqlglot.expressions.NoPrimaryIndexProperty", "modulename": "sqlglot.expressions", "qualname": "NoPrimaryIndexProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.OnCommitProperty": {"fullname": "sqlglot.expressions.OnCommitProperty", "modulename": "sqlglot.expressions", "qualname": "OnCommitProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.PartitionedByProperty": {"fullname": "sqlglot.expressions.PartitionedByProperty", "modulename": "sqlglot.expressions", "qualname": "PartitionedByProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.ReturnsProperty": {"fullname": "sqlglot.expressions.ReturnsProperty", "modulename": "sqlglot.expressions", "qualname": "ReturnsProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatProperty": {"fullname": "sqlglot.expressions.RowFormatProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatDelimitedProperty": {"fullname": "sqlglot.expressions.RowFormatDelimitedProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatDelimitedProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.RowFormatSerdeProperty": {"fullname": "sqlglot.expressions.RowFormatSerdeProperty", "modulename": "sqlglot.expressions", "qualname": "RowFormatSerdeProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SchemaCommentProperty": {"fullname": "sqlglot.expressions.SchemaCommentProperty", "modulename": "sqlglot.expressions", "qualname": "SchemaCommentProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SerdeProperties": {"fullname": "sqlglot.expressions.SerdeProperties", "modulename": "sqlglot.expressions", "qualname": "SerdeProperties", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SetProperty": {"fullname": "sqlglot.expressions.SetProperty", "modulename": "sqlglot.expressions", "qualname": "SetProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SortKeyProperty": {"fullname": "sqlglot.expressions.SortKeyProperty", "modulename": "sqlglot.expressions", "qualname": "SortKeyProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.SqlSecurityProperty": {"fullname": "sqlglot.expressions.SqlSecurityProperty", "modulename": "sqlglot.expressions", "qualname": "SqlSecurityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.StabilityProperty": {"fullname": "sqlglot.expressions.StabilityProperty", "modulename": "sqlglot.expressions", "qualname": "StabilityProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TableFormatProperty": {"fullname": "sqlglot.expressions.TableFormatProperty", "modulename": "sqlglot.expressions", "qualname": "TableFormatProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TemporaryProperty": {"fullname": "sqlglot.expressions.TemporaryProperty", "modulename": "sqlglot.expressions", "qualname": "TemporaryProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.TransientProperty": {"fullname": "sqlglot.expressions.TransientProperty", "modulename": "sqlglot.expressions", "qualname": "TransientProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.VolatileProperty": {"fullname": "sqlglot.expressions.VolatileProperty", "modulename": "sqlglot.expressions", "qualname": "VolatileProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithDataProperty": {"fullname": "sqlglot.expressions.WithDataProperty", "modulename": "sqlglot.expressions", "qualname": "WithDataProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.WithJournalTableProperty": {"fullname": "sqlglot.expressions.WithJournalTableProperty", "modulename": "sqlglot.expressions", "qualname": "WithJournalTableProperty", "kind": "class", "doc": "

\n", "bases": "Property"}, "sqlglot.expressions.Properties": {"fullname": "sqlglot.expressions.Properties", "modulename": "sqlglot.expressions", "qualname": "Properties", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Properties.Location": {"fullname": "sqlglot.expressions.Properties.Location", "modulename": "sqlglot.expressions", "qualname": "Properties.Location", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.Properties.Location.POST_CREATE": {"fullname": "sqlglot.expressions.Properties.Location.POST_CREATE", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_CREATE", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_CREATE: 'POST_CREATE'>"}, "sqlglot.expressions.Properties.Location.POST_NAME": {"fullname": "sqlglot.expressions.Properties.Location.POST_NAME", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_NAME", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_NAME: 'POST_NAME'>"}, "sqlglot.expressions.Properties.Location.POST_SCHEMA": {"fullname": "sqlglot.expressions.Properties.Location.POST_SCHEMA", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_SCHEMA: 'POST_SCHEMA'>"}, "sqlglot.expressions.Properties.Location.POST_WITH": {"fullname": "sqlglot.expressions.Properties.Location.POST_WITH", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_WITH", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_WITH: 'POST_WITH'>"}, "sqlglot.expressions.Properties.Location.POST_ALIAS": {"fullname": "sqlglot.expressions.Properties.Location.POST_ALIAS", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_ALIAS", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_ALIAS: 'POST_ALIAS'>"}, "sqlglot.expressions.Properties.Location.POST_EXPRESSION": {"fullname": "sqlglot.expressions.Properties.Location.POST_EXPRESSION", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_EXPRESSION", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_EXPRESSION: 'POST_EXPRESSION'>"}, "sqlglot.expressions.Properties.Location.POST_INDEX": {"fullname": "sqlglot.expressions.Properties.Location.POST_INDEX", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.POST_INDEX", "kind": "variable", "doc": "

\n", "default_value": "<Location.POST_INDEX: 'POST_INDEX'>"}, "sqlglot.expressions.Properties.Location.UNSUPPORTED": {"fullname": "sqlglot.expressions.Properties.Location.UNSUPPORTED", "modulename": "sqlglot.expressions", "qualname": "Properties.Location.UNSUPPORTED", "kind": "variable", "doc": "

\n", "default_value": "<Location.UNSUPPORTED: 'UNSUPPORTED'>"}, "sqlglot.expressions.Properties.from_dict": {"fullname": "sqlglot.expressions.Properties.from_dict", "modulename": "sqlglot.expressions", "qualname": "Properties.from_dict", "kind": "function", "doc": "

\n", "signature": "(cls, properties_dict) -> sqlglot.expressions.Properties:", "funcdef": "def"}, "sqlglot.expressions.Qualify": {"fullname": "sqlglot.expressions.Qualify", "modulename": "sqlglot.expressions", "qualname": "Qualify", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Return": {"fullname": "sqlglot.expressions.Return", "modulename": "sqlglot.expressions", "qualname": "Return", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Reference": {"fullname": "sqlglot.expressions.Reference", "modulename": "sqlglot.expressions", "qualname": "Reference", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tuple": {"fullname": "sqlglot.expressions.Tuple", "modulename": "sqlglot.expressions", "qualname": "Tuple", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Subqueryable": {"fullname": "sqlglot.expressions.Subqueryable", "modulename": "sqlglot.expressions", "qualname": "Subqueryable", "kind": "class", "doc": "

\n", "bases": "Unionable"}, "sqlglot.expressions.Subqueryable.subquery": {"fullname": "sqlglot.expressions.Subqueryable.subquery", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.subquery", "kind": "function", "doc": "

Convert this expression to an aliased expression that can be used as a Subquery.

\n\n
Example:
\n\n
\n
\n
>>> subquery = Select().select("x").from_("tbl").subquery()\n>>> Select().select("x").from_(subquery).sql()\n'SELECT x FROM (SELECT x FROM tbl)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Identifier): an optional alias for the subquery
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the subquery

\n
\n", "signature": "(self, alias=None, copy=True) -> sqlglot.expressions.Subquery:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.limit": {"fullname": "sqlglot.expressions.Subqueryable.limit", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.limit", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Subqueryable.with_": {"fullname": "sqlglot.expressions.Subqueryable.with_", "modulename": "sqlglot.expressions", "qualname": "Subqueryable.with_", "kind": "function", "doc": "

Append to or set the common table expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()\n'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • alias (str | Expression): the SQL code string to parse as the table name.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • as_ (str | Expression): the SQL code string to parse as the table expression.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • recursive (bool): set the RECURSIVE part of the expression. Defaults to False.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\talias,\tas_,\trecursive=None,\tappend=True,\tdialect=None,\tcopy=True,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.Table": {"fullname": "sqlglot.expressions.Table", "modulename": "sqlglot.expressions", "qualname": "Table", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SystemTime": {"fullname": "sqlglot.expressions.SystemTime", "modulename": "sqlglot.expressions", "qualname": "SystemTime", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Union": {"fullname": "sqlglot.expressions.Union", "modulename": "sqlglot.expressions", "qualname": "Union", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Union.limit": {"fullname": "sqlglot.expressions.Union.limit", "modulename": "sqlglot.expressions", "qualname": "Union.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> select("1").union(select("1")).limit(1).sql()\n'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: The limited subqueryable.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Union.select": {"fullname": "sqlglot.expressions.Union.select", "modulename": "sqlglot.expressions", "qualname": "Union.select", "kind": "function", "doc": "

Append to or set the SELECT of the union recursively.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("select a from x union select a from y union select a from z").select("b").sql()\n'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Union:", "funcdef": "def"}, "sqlglot.expressions.Union.is_star": {"fullname": "sqlglot.expressions.Union.is_star", "modulename": "sqlglot.expressions", "qualname": "Union.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Except": {"fullname": "sqlglot.expressions.Except", "modulename": "sqlglot.expressions", "qualname": "Except", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Intersect": {"fullname": "sqlglot.expressions.Intersect", "modulename": "sqlglot.expressions", "qualname": "Intersect", "kind": "class", "doc": "

\n", "bases": "Union"}, "sqlglot.expressions.Unnest": {"fullname": "sqlglot.expressions.Unnest", "modulename": "sqlglot.expressions", "qualname": "Unnest", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Update": {"fullname": "sqlglot.expressions.Update", "modulename": "sqlglot.expressions", "qualname": "Update", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Values": {"fullname": "sqlglot.expressions.Values", "modulename": "sqlglot.expressions", "qualname": "Values", "kind": "class", "doc": "

\n", "bases": "UDTF"}, "sqlglot.expressions.Var": {"fullname": "sqlglot.expressions.Var", "modulename": "sqlglot.expressions", "qualname": "Var", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Schema": {"fullname": "sqlglot.expressions.Schema", "modulename": "sqlglot.expressions", "qualname": "Schema", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Lock": {"fullname": "sqlglot.expressions.Lock", "modulename": "sqlglot.expressions", "qualname": "Lock", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Select": {"fullname": "sqlglot.expressions.Select", "modulename": "sqlglot.expressions", "qualname": "Select", "kind": "class", "doc": "

\n", "bases": "Subqueryable"}, "sqlglot.expressions.Select.from_": {"fullname": "sqlglot.expressions.Select.from_", "modulename": "sqlglot.expressions", "qualname": "Select.from_", "kind": "function", "doc": "

Set the FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sql()\n'SELECT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a From instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a From.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the From expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.group_by": {"fullname": "sqlglot.expressions.Select.group_by", "modulename": "sqlglot.expressions", "qualname": "Select.group_by", "kind": "function", "doc": "

Set the GROUP BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()\n'SELECT x, COUNT(1) FROM tbl GROUP BY x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Group.\nIf nothing is passed in then a group by is not applied to the expression
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Group expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.order_by": {"fullname": "sqlglot.expressions.Select.order_by", "modulename": "sqlglot.expressions", "qualname": "Select.order_by", "kind": "function", "doc": "

Set the ORDER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").order_by("x DESC").sql()\n'SELECT x FROM tbl ORDER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Order.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.sort_by": {"fullname": "sqlglot.expressions.Select.sort_by", "modulename": "sqlglot.expressions", "qualname": "Select.sort_by", "kind": "function", "doc": "

Set the SORT BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").sort_by("x DESC").sql()\n'SELECT x FROM tbl SORT BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a SORT.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.cluster_by": {"fullname": "sqlglot.expressions.Select.cluster_by", "modulename": "sqlglot.expressions", "qualname": "Select.cluster_by", "kind": "function", "doc": "

Set the CLUSTER BY expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()\n'SELECT x FROM tbl CLUSTER BY x DESC'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf a Group instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Cluster.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this flattens all the Order expression into a single expression.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.limit": {"fullname": "sqlglot.expressions.Select.limit", "modulename": "sqlglot.expressions", "qualname": "Select.limit", "kind": "function", "doc": "

Set the LIMIT expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").limit(10).sql()\n'SELECT x FROM tbl LIMIT 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Limit instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Limit.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.offset": {"fullname": "sqlglot.expressions.Select.offset", "modulename": "sqlglot.expressions", "qualname": "Select.offset", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").offset(10).sql()\n'SELECT x FROM tbl OFFSET 10'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | int | Expression): the SQL code string to parse.\nThis can also be an integer.\nIf a Offset instance is passed, this is used as-is.\nIf another Expression instance is passed, it will be wrapped in a Offset.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.select": {"fullname": "sqlglot.expressions.Select.select", "modulename": "sqlglot.expressions", "qualname": "Select.select", "kind": "function", "doc": "

Append to or set the SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "y").sql()\n'SELECT x, y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append: if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
  • opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions: Union[str, sqlglot.expressions.Expression],\tappend: bool = True,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.lateral": {"fullname": "sqlglot.expressions.Select.lateral", "modulename": "sqlglot.expressions", "qualname": "Select.lateral", "kind": "function", "doc": "

Append to or set the LATERAL expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()\n'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.join": {"fullname": "sqlglot.expressions.Select.join", "modulename": "sqlglot.expressions", "qualname": "Select.join", "kind": "function", "doc": "

Append to or set the JOIN expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()\n'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n \n
\n
>>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()\n'SELECT 1 FROM a JOIN b USING (x, y, z)'\n
\n
\n \n

Use join_type to change the type of join:

\n \n
\n
>>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()\n'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • on (str | Expression): optionally specify the join \"on\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • using (str | Expression): optionally specify the join \"using\" criteria as a SQL string.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • append (bool): if True, add to any existing expressions.\nOtherwise, this resets the expressions.
  • \n
  • join_type (str): If set, alter the parsed join type
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\texpression,\ton=None,\tusing=None,\tappend=True,\tjoin_type=None,\tjoin_alias=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.where": {"fullname": "sqlglot.expressions.Select.where", "modulename": "sqlglot.expressions", "qualname": "Select.where", "kind": "function", "doc": "

Append to or set the WHERE expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()\n"SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.having": {"fullname": "sqlglot.expressions.Select.having", "modulename": "sqlglot.expressions", "qualname": "Select.having", "kind": "function", "doc": "

Append to or set the HAVING expressions.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()\n'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, it will be used as-is.\nMultiple expressions are combined with an AND operator.
  • \n
  • append (bool): if True, AND the new expressions to any existing expression.\nOtherwise, this resets the expression.
  • \n
  • dialect (str): the dialect used to parse the input expressions.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.window": {"fullname": "sqlglot.expressions.Select.window", "modulename": "sqlglot.expressions", "qualname": "Select.window", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.qualify": {"fullname": "sqlglot.expressions.Select.qualify", "modulename": "sqlglot.expressions", "qualname": "Select.qualify", "kind": "function", "doc": "

\n", "signature": "(\tself,\t*expressions,\tappend=True,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.distinct": {"fullname": "sqlglot.expressions.Select.distinct", "modulename": "sqlglot.expressions", "qualname": "Select.distinct", "kind": "function", "doc": "

Set the OFFSET expression.

\n\n
Example:
\n\n
\n
\n
>>> Select().from_("tbl").select("x").distinct().sql()\n'SELECT DISTINCT x FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • ons: the expressions to distinct on
  • \n
  • distinct: whether the Select should be distinct
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

Select: the modified expression.

\n
\n", "signature": "(\tself,\t*ons: Union[str, sqlglot.expressions.Expression],\tdistinct: bool = True,\tcopy: bool = True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.ctas": {"fullname": "sqlglot.expressions.Select.ctas", "modulename": "sqlglot.expressions", "qualname": "Select.ctas", "kind": "function", "doc": "

Convert this expression to a CREATE TABLE AS statement.

\n\n
Example:
\n\n
\n
\n
>>> Select().select("*").from_("tbl").ctas("x").sql()\n'CREATE TABLE x AS SELECT * FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): the SQL code string to parse as the table name.\nIf another Expression instance is passed, it will be used as-is.
  • \n
  • properties (dict): an optional mapping of table properties
  • \n
  • dialect (str): the dialect used to parse the input table.
  • \n
  • copy (bool): if False, modify this expression instance in-place.
  • \n
  • opts (kwargs): other options to use to parse the input table.
  • \n
\n\n
Returns:
\n\n
\n

Create: the CREATE TABLE AS expression

\n
\n", "signature": "(\tself,\ttable,\tproperties=None,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Create:", "funcdef": "def"}, "sqlglot.expressions.Select.lock": {"fullname": "sqlglot.expressions.Select.lock", "modulename": "sqlglot.expressions", "qualname": "Select.lock", "kind": "function", "doc": "

Set the locking read mode for this expression.

\n\n
Examples:
\n\n
\n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"\n
\n
\n \n
\n
>>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")\n"SELECT x FROM tbl WHERE x = 'a' FOR SHARE"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • update: if True, the locking type will be FOR UPDATE, else it will be FOR SHARE.
  • \n
  • copy: if False, modify this expression instance in-place.
  • \n
\n\n
Returns:
\n\n
\n

The modified expression.

\n
\n", "signature": "(\tself,\tupdate: bool = True,\tcopy: bool = True) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.Select.is_star": {"fullname": "sqlglot.expressions.Select.is_star", "modulename": "sqlglot.expressions", "qualname": "Select.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery": {"fullname": "sqlglot.expressions.Subquery", "modulename": "sqlglot.expressions", "qualname": "Subquery", "kind": "class", "doc": "

\n", "bases": "DerivedTable, Unionable"}, "sqlglot.expressions.Subquery.unnest": {"fullname": "sqlglot.expressions.Subquery.unnest", "modulename": "sqlglot.expressions", "qualname": "Subquery.unnest", "kind": "function", "doc": "

Returns the first non subquery.

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.expressions.Subquery.is_star": {"fullname": "sqlglot.expressions.Subquery.is_star", "modulename": "sqlglot.expressions", "qualname": "Subquery.is_star", "kind": "variable", "doc": "

Checks whether an expression is a star.

\n", "annotation": ": bool"}, "sqlglot.expressions.Subquery.output_name": {"fullname": "sqlglot.expressions.Subquery.output_name", "modulename": "sqlglot.expressions", "qualname": "Subquery.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.TableSample": {"fullname": "sqlglot.expressions.TableSample", "modulename": "sqlglot.expressions", "qualname": "TableSample", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Tag": {"fullname": "sqlglot.expressions.Tag", "modulename": "sqlglot.expressions", "qualname": "Tag", "kind": "class", "doc": "

Tags are used for generating arbitrary sql like SELECT x.

\n", "bases": "Expression"}, "sqlglot.expressions.Pivot": {"fullname": "sqlglot.expressions.Pivot", "modulename": "sqlglot.expressions", "qualname": "Pivot", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Window": {"fullname": "sqlglot.expressions.Window", "modulename": "sqlglot.expressions", "qualname": "Window", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.WindowSpec": {"fullname": "sqlglot.expressions.WindowSpec", "modulename": "sqlglot.expressions", "qualname": "WindowSpec", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Where": {"fullname": "sqlglot.expressions.Where", "modulename": "sqlglot.expressions", "qualname": "Where", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star": {"fullname": "sqlglot.expressions.Star", "modulename": "sqlglot.expressions", "qualname": "Star", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Star.output_name": {"fullname": "sqlglot.expressions.Star.output_name", "modulename": "sqlglot.expressions", "qualname": "Star.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Parameter": {"fullname": "sqlglot.expressions.Parameter", "modulename": "sqlglot.expressions", "qualname": "Parameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SessionParameter": {"fullname": "sqlglot.expressions.SessionParameter", "modulename": "sqlglot.expressions", "qualname": "SessionParameter", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Placeholder": {"fullname": "sqlglot.expressions.Placeholder", "modulename": "sqlglot.expressions", "qualname": "Placeholder", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Null": {"fullname": "sqlglot.expressions.Null", "modulename": "sqlglot.expressions", "qualname": "Null", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Boolean": {"fullname": "sqlglot.expressions.Boolean", "modulename": "sqlglot.expressions", "qualname": "Boolean", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.DataType": {"fullname": "sqlglot.expressions.DataType", "modulename": "sqlglot.expressions", "qualname": "DataType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DataType.Type": {"fullname": "sqlglot.expressions.DataType.Type", "modulename": "sqlglot.expressions", "qualname": "DataType.Type", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.expressions.DataType.Type.CHAR": {"fullname": "sqlglot.expressions.DataType.Type.CHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.CHAR: 'CHAR'>"}, "sqlglot.expressions.DataType.Type.NCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NCHAR: 'NCHAR'>"}, "sqlglot.expressions.DataType.Type.VARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.VARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARCHAR: 'VARCHAR'>"}, "sqlglot.expressions.DataType.Type.NVARCHAR": {"fullname": "sqlglot.expressions.DataType.Type.NVARCHAR", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<Type.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.expressions.DataType.Type.TEXT": {"fullname": "sqlglot.expressions.DataType.Type.TEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TEXT: 'TEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMTEXT": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMTEXT: 'MEDIUMTEXT'>"}, "sqlglot.expressions.DataType.Type.LONGTEXT": {"fullname": "sqlglot.expressions.DataType.Type.LONGTEXT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGTEXT", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGTEXT: 'LONGTEXT'>"}, "sqlglot.expressions.DataType.Type.MEDIUMBLOB": {"fullname": "sqlglot.expressions.DataType.Type.MEDIUMBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MEDIUMBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.MEDIUMBLOB: 'MEDIUMBLOB'>"}, "sqlglot.expressions.DataType.Type.LONGBLOB": {"fullname": "sqlglot.expressions.DataType.Type.LONGBLOB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.LONGBLOB", "kind": "variable", "doc": "

\n", "default_value": "<Type.LONGBLOB: 'LONGBLOB'>"}, "sqlglot.expressions.DataType.Type.BINARY": {"fullname": "sqlglot.expressions.DataType.Type.BINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.BINARY: 'BINARY'>"}, "sqlglot.expressions.DataType.Type.VARBINARY": {"fullname": "sqlglot.expressions.DataType.Type.VARBINARY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARBINARY", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARBINARY: 'VARBINARY'>"}, "sqlglot.expressions.DataType.Type.INT": {"fullname": "sqlglot.expressions.DataType.Type.INT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INT", "kind": "variable", "doc": "

\n", "default_value": "<Type.INT: 'INT'>"}, "sqlglot.expressions.DataType.Type.UINT": {"fullname": "sqlglot.expressions.DataType.Type.UINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UINT: 'UINT'>"}, "sqlglot.expressions.DataType.Type.TINYINT": {"fullname": "sqlglot.expressions.DataType.Type.TINYINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TINYINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.TINYINT: 'TINYINT'>"}, "sqlglot.expressions.DataType.Type.UTINYINT": {"fullname": "sqlglot.expressions.DataType.Type.UTINYINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UTINYINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UTINYINT: 'UTINYINT'>"}, "sqlglot.expressions.DataType.Type.SMALLINT": {"fullname": "sqlglot.expressions.DataType.Type.SMALLINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLINT: 'SMALLINT'>"}, "sqlglot.expressions.DataType.Type.USMALLINT": {"fullname": "sqlglot.expressions.DataType.Type.USMALLINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.USMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.USMALLINT: 'USMALLINT'>"}, "sqlglot.expressions.DataType.Type.BIGINT": {"fullname": "sqlglot.expressions.DataType.Type.BIGINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGINT: 'BIGINT'>"}, "sqlglot.expressions.DataType.Type.UBIGINT": {"fullname": "sqlglot.expressions.DataType.Type.UBIGINT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UBIGINT", "kind": "variable", "doc": "

\n", "default_value": "<Type.UBIGINT: 'UBIGINT'>"}, "sqlglot.expressions.DataType.Type.FLOAT": {"fullname": "sqlglot.expressions.DataType.Type.FLOAT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.FLOAT", "kind": "variable", "doc": "

\n", "default_value": "<Type.FLOAT: 'FLOAT'>"}, "sqlglot.expressions.DataType.Type.DOUBLE": {"fullname": "sqlglot.expressions.DataType.Type.DOUBLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DOUBLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DOUBLE: 'DOUBLE'>"}, "sqlglot.expressions.DataType.Type.DECIMAL": {"fullname": "sqlglot.expressions.DataType.Type.DECIMAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.DECIMAL: 'DECIMAL'>"}, "sqlglot.expressions.DataType.Type.BIGDECIMAL": {"fullname": "sqlglot.expressions.DataType.Type.BIGDECIMAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGDECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGDECIMAL: 'BIGDECIMAL'>"}, "sqlglot.expressions.DataType.Type.BIT": {"fullname": "sqlglot.expressions.DataType.Type.BIT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIT", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIT: 'BIT'>"}, "sqlglot.expressions.DataType.Type.BOOLEAN": {"fullname": "sqlglot.expressions.DataType.Type.BOOLEAN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BOOLEAN", "kind": "variable", "doc": "

\n", "default_value": "<Type.BOOLEAN: 'BOOLEAN'>"}, "sqlglot.expressions.DataType.Type.JSON": {"fullname": "sqlglot.expressions.DataType.Type.JSON", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSON", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSON: 'JSON'>"}, "sqlglot.expressions.DataType.Type.JSONB": {"fullname": "sqlglot.expressions.DataType.Type.JSONB", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.JSONB", "kind": "variable", "doc": "

\n", "default_value": "<Type.JSONB: 'JSONB'>"}, "sqlglot.expressions.DataType.Type.INTERVAL": {"fullname": "sqlglot.expressions.DataType.Type.INTERVAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INTERVAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.INTERVAL: 'INTERVAL'>"}, "sqlglot.expressions.DataType.Type.TIME": {"fullname": "sqlglot.expressions.DataType.Type.TIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIME: 'TIME'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMP": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMP", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMP: 'TIMESTAMP'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPTZ: 'TIMESTAMPTZ'>"}, "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ": {"fullname": "sqlglot.expressions.DataType.Type.TIMESTAMPLTZ", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.TIMESTAMPLTZ", "kind": "variable", "doc": "

\n", "default_value": "<Type.TIMESTAMPLTZ: 'TIMESTAMPLTZ'>"}, "sqlglot.expressions.DataType.Type.DATE": {"fullname": "sqlglot.expressions.DataType.Type.DATE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATE", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATE: 'DATE'>"}, "sqlglot.expressions.DataType.Type.DATETIME": {"fullname": "sqlglot.expressions.DataType.Type.DATETIME", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.DATETIME", "kind": "variable", "doc": "

\n", "default_value": "<Type.DATETIME: 'DATETIME'>"}, "sqlglot.expressions.DataType.Type.ARRAY": {"fullname": "sqlglot.expressions.DataType.Type.ARRAY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ARRAY", "kind": "variable", "doc": "

\n", "default_value": "<Type.ARRAY: 'ARRAY'>"}, "sqlglot.expressions.DataType.Type.MAP": {"fullname": "sqlglot.expressions.DataType.Type.MAP", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MAP", "kind": "variable", "doc": "

\n", "default_value": "<Type.MAP: 'MAP'>"}, "sqlglot.expressions.DataType.Type.UUID": {"fullname": "sqlglot.expressions.DataType.Type.UUID", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UUID", "kind": "variable", "doc": "

\n", "default_value": "<Type.UUID: 'UUID'>"}, "sqlglot.expressions.DataType.Type.GEOGRAPHY": {"fullname": "sqlglot.expressions.DataType.Type.GEOGRAPHY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOGRAPHY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOGRAPHY: 'GEOGRAPHY'>"}, "sqlglot.expressions.DataType.Type.GEOMETRY": {"fullname": "sqlglot.expressions.DataType.Type.GEOMETRY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.GEOMETRY", "kind": "variable", "doc": "

\n", "default_value": "<Type.GEOMETRY: 'GEOMETRY'>"}, "sqlglot.expressions.DataType.Type.STRUCT": {"fullname": "sqlglot.expressions.DataType.Type.STRUCT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<Type.STRUCT: 'STRUCT'>"}, "sqlglot.expressions.DataType.Type.NULLABLE": {"fullname": "sqlglot.expressions.DataType.Type.NULLABLE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULLABLE", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULLABLE: 'NULLABLE'>"}, "sqlglot.expressions.DataType.Type.HLLSKETCH": {"fullname": "sqlglot.expressions.DataType.Type.HLLSKETCH", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HLLSKETCH", "kind": "variable", "doc": "

\n", "default_value": "<Type.HLLSKETCH: 'HLLSKETCH'>"}, "sqlglot.expressions.DataType.Type.HSTORE": {"fullname": "sqlglot.expressions.DataType.Type.HSTORE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.HSTORE", "kind": "variable", "doc": "

\n", "default_value": "<Type.HSTORE: 'HSTORE'>"}, "sqlglot.expressions.DataType.Type.SUPER": {"fullname": "sqlglot.expressions.DataType.Type.SUPER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SUPER", "kind": "variable", "doc": "

\n", "default_value": "<Type.SUPER: 'SUPER'>"}, "sqlglot.expressions.DataType.Type.SERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SERIAL: 'SERIAL'>"}, "sqlglot.expressions.DataType.Type.SMALLSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.SMALLSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLSERIAL: 'SMALLSERIAL'>"}, "sqlglot.expressions.DataType.Type.BIGSERIAL": {"fullname": "sqlglot.expressions.DataType.Type.BIGSERIAL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.BIGSERIAL", "kind": "variable", "doc": "

\n", "default_value": "<Type.BIGSERIAL: 'BIGSERIAL'>"}, "sqlglot.expressions.DataType.Type.XML": {"fullname": "sqlglot.expressions.DataType.Type.XML", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.XML", "kind": "variable", "doc": "

\n", "default_value": "<Type.XML: 'XML'>"}, "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER": {"fullname": "sqlglot.expressions.DataType.Type.UNIQUEIDENTIFIER", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNIQUEIDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNIQUEIDENTIFIER: 'UNIQUEIDENTIFIER'>"}, "sqlglot.expressions.DataType.Type.MONEY": {"fullname": "sqlglot.expressions.DataType.Type.MONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.MONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.MONEY: 'MONEY'>"}, "sqlglot.expressions.DataType.Type.SMALLMONEY": {"fullname": "sqlglot.expressions.DataType.Type.SMALLMONEY", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.SMALLMONEY", "kind": "variable", "doc": "

\n", "default_value": "<Type.SMALLMONEY: 'SMALLMONEY'>"}, "sqlglot.expressions.DataType.Type.ROWVERSION": {"fullname": "sqlglot.expressions.DataType.Type.ROWVERSION", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.ROWVERSION", "kind": "variable", "doc": "

\n", "default_value": "<Type.ROWVERSION: 'ROWVERSION'>"}, "sqlglot.expressions.DataType.Type.IMAGE": {"fullname": "sqlglot.expressions.DataType.Type.IMAGE", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.IMAGE", "kind": "variable", "doc": "

\n", "default_value": "<Type.IMAGE: 'IMAGE'>"}, "sqlglot.expressions.DataType.Type.VARIANT": {"fullname": "sqlglot.expressions.DataType.Type.VARIANT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.VARIANT", "kind": "variable", "doc": "

\n", "default_value": "<Type.VARIANT: 'VARIANT'>"}, "sqlglot.expressions.DataType.Type.OBJECT": {"fullname": "sqlglot.expressions.DataType.Type.OBJECT", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.OBJECT", "kind": "variable", "doc": "

\n", "default_value": "<Type.OBJECT: 'OBJECT'>"}, "sqlglot.expressions.DataType.Type.INET": {"fullname": "sqlglot.expressions.DataType.Type.INET", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.INET", "kind": "variable", "doc": "

\n", "default_value": "<Type.INET: 'INET'>"}, "sqlglot.expressions.DataType.Type.NULL": {"fullname": "sqlglot.expressions.DataType.Type.NULL", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.NULL", "kind": "variable", "doc": "

\n", "default_value": "<Type.NULL: 'NULL'>"}, "sqlglot.expressions.DataType.Type.UNKNOWN": {"fullname": "sqlglot.expressions.DataType.Type.UNKNOWN", "modulename": "sqlglot.expressions", "qualname": "DataType.Type.UNKNOWN", "kind": "variable", "doc": "

\n", "default_value": "<Type.UNKNOWN: 'UNKNOWN'>"}, "sqlglot.expressions.DataType.build": {"fullname": "sqlglot.expressions.DataType.build", "modulename": "sqlglot.expressions", "qualname": "DataType.build", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tdtype: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.expressions.DataType.is_type": {"fullname": "sqlglot.expressions.DataType.is_type", "modulename": "sqlglot.expressions", "qualname": "DataType.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.PseudoType": {"fullname": "sqlglot.expressions.PseudoType", "modulename": "sqlglot.expressions", "qualname": "PseudoType", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.StructKwarg": {"fullname": "sqlglot.expressions.StructKwarg", "modulename": "sqlglot.expressions", "qualname": "StructKwarg", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.SubqueryPredicate": {"fullname": "sqlglot.expressions.SubqueryPredicate", "modulename": "sqlglot.expressions", "qualname": "SubqueryPredicate", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.All": {"fullname": "sqlglot.expressions.All", "modulename": "sqlglot.expressions", "qualname": "All", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Any": {"fullname": "sqlglot.expressions.Any", "modulename": "sqlglot.expressions", "qualname": "Any", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Exists": {"fullname": "sqlglot.expressions.Exists", "modulename": "sqlglot.expressions", "qualname": "Exists", "kind": "class", "doc": "

\n", "bases": "SubqueryPredicate"}, "sqlglot.expressions.Command": {"fullname": "sqlglot.expressions.Command", "modulename": "sqlglot.expressions", "qualname": "Command", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Transaction": {"fullname": "sqlglot.expressions.Transaction", "modulename": "sqlglot.expressions", "qualname": "Transaction", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Commit": {"fullname": "sqlglot.expressions.Commit", "modulename": "sqlglot.expressions", "qualname": "Commit", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Rollback": {"fullname": "sqlglot.expressions.Rollback", "modulename": "sqlglot.expressions", "qualname": "Rollback", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AlterTable": {"fullname": "sqlglot.expressions.AlterTable", "modulename": "sqlglot.expressions", "qualname": "AlterTable", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AddConstraint": {"fullname": "sqlglot.expressions.AddConstraint", "modulename": "sqlglot.expressions", "qualname": "AddConstraint", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.DropPartition": {"fullname": "sqlglot.expressions.DropPartition", "modulename": "sqlglot.expressions", "qualname": "DropPartition", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Binary": {"fullname": "sqlglot.expressions.Binary", "modulename": "sqlglot.expressions", "qualname": "Binary", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Add": {"fullname": "sqlglot.expressions.Add", "modulename": "sqlglot.expressions", "qualname": "Add", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Connector": {"fullname": "sqlglot.expressions.Connector", "modulename": "sqlglot.expressions", "qualname": "Connector", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.And": {"fullname": "sqlglot.expressions.And", "modulename": "sqlglot.expressions", "qualname": "And", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.Or": {"fullname": "sqlglot.expressions.Or", "modulename": "sqlglot.expressions", "qualname": "Or", "kind": "class", "doc": "

\n", "bases": "Connector"}, "sqlglot.expressions.BitwiseAnd": {"fullname": "sqlglot.expressions.BitwiseAnd", "modulename": "sqlglot.expressions", "qualname": "BitwiseAnd", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseLeftShift": {"fullname": "sqlglot.expressions.BitwiseLeftShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseLeftShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseOr": {"fullname": "sqlglot.expressions.BitwiseOr", "modulename": "sqlglot.expressions", "qualname": "BitwiseOr", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseRightShift": {"fullname": "sqlglot.expressions.BitwiseRightShift", "modulename": "sqlglot.expressions", "qualname": "BitwiseRightShift", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.BitwiseXor": {"fullname": "sqlglot.expressions.BitwiseXor", "modulename": "sqlglot.expressions", "qualname": "BitwiseXor", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Div": {"fullname": "sqlglot.expressions.Div", "modulename": "sqlglot.expressions", "qualname": "Div", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Overlaps": {"fullname": "sqlglot.expressions.Overlaps", "modulename": "sqlglot.expressions", "qualname": "Overlaps", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Dot": {"fullname": "sqlglot.expressions.Dot", "modulename": "sqlglot.expressions", "qualname": "Dot", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Dot.build": {"fullname": "sqlglot.expressions.Dot.build", "modulename": "sqlglot.expressions", "qualname": "Dot.build", "kind": "function", "doc": "

Build a Dot object with a sequence of expressions.

\n", "signature": "(\tself,\texpressions: Sequence[sqlglot.expressions.Expression]) -> sqlglot.expressions.Dot:", "funcdef": "def"}, "sqlglot.expressions.DPipe": {"fullname": "sqlglot.expressions.DPipe", "modulename": "sqlglot.expressions", "qualname": "DPipe", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.EQ": {"fullname": "sqlglot.expressions.EQ", "modulename": "sqlglot.expressions", "qualname": "EQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeEQ": {"fullname": "sqlglot.expressions.NullSafeEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.NullSafeNEQ": {"fullname": "sqlglot.expressions.NullSafeNEQ", "modulename": "sqlglot.expressions", "qualname": "NullSafeNEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Distance": {"fullname": "sqlglot.expressions.Distance", "modulename": "sqlglot.expressions", "qualname": "Distance", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Escape": {"fullname": "sqlglot.expressions.Escape", "modulename": "sqlglot.expressions", "qualname": "Escape", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Glob": {"fullname": "sqlglot.expressions.Glob", "modulename": "sqlglot.expressions", "qualname": "Glob", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GT": {"fullname": "sqlglot.expressions.GT", "modulename": "sqlglot.expressions", "qualname": "GT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.GTE": {"fullname": "sqlglot.expressions.GTE", "modulename": "sqlglot.expressions", "qualname": "GTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILike": {"fullname": "sqlglot.expressions.ILike", "modulename": "sqlglot.expressions", "qualname": "ILike", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.ILikeAny": {"fullname": "sqlglot.expressions.ILikeAny", "modulename": "sqlglot.expressions", "qualname": "ILikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.IntDiv": {"fullname": "sqlglot.expressions.IntDiv", "modulename": "sqlglot.expressions", "qualname": "IntDiv", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Is": {"fullname": "sqlglot.expressions.Is", "modulename": "sqlglot.expressions", "qualname": "Is", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Kwarg": {"fullname": "sqlglot.expressions.Kwarg", "modulename": "sqlglot.expressions", "qualname": "Kwarg", "kind": "class", "doc": "

Kwarg in special functions like func(kwarg => y).

\n", "bases": "Binary"}, "sqlglot.expressions.Like": {"fullname": "sqlglot.expressions.Like", "modulename": "sqlglot.expressions", "qualname": "Like", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LikeAny": {"fullname": "sqlglot.expressions.LikeAny", "modulename": "sqlglot.expressions", "qualname": "LikeAny", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LT": {"fullname": "sqlglot.expressions.LT", "modulename": "sqlglot.expressions", "qualname": "LT", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.LTE": {"fullname": "sqlglot.expressions.LTE", "modulename": "sqlglot.expressions", "qualname": "LTE", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Mod": {"fullname": "sqlglot.expressions.Mod", "modulename": "sqlglot.expressions", "qualname": "Mod", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Mul": {"fullname": "sqlglot.expressions.Mul", "modulename": "sqlglot.expressions", "qualname": "Mul", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.NEQ": {"fullname": "sqlglot.expressions.NEQ", "modulename": "sqlglot.expressions", "qualname": "NEQ", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.SimilarTo": {"fullname": "sqlglot.expressions.SimilarTo", "modulename": "sqlglot.expressions", "qualname": "SimilarTo", "kind": "class", "doc": "

\n", "bases": "Binary, Predicate"}, "sqlglot.expressions.Slice": {"fullname": "sqlglot.expressions.Slice", "modulename": "sqlglot.expressions", "qualname": "Slice", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Sub": {"fullname": "sqlglot.expressions.Sub", "modulename": "sqlglot.expressions", "qualname": "Sub", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.ArrayOverlaps": {"fullname": "sqlglot.expressions.ArrayOverlaps", "modulename": "sqlglot.expressions", "qualname": "ArrayOverlaps", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.Unary": {"fullname": "sqlglot.expressions.Unary", "modulename": "sqlglot.expressions", "qualname": "Unary", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.BitwiseNot": {"fullname": "sqlglot.expressions.BitwiseNot", "modulename": "sqlglot.expressions", "qualname": "BitwiseNot", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Not": {"fullname": "sqlglot.expressions.Not", "modulename": "sqlglot.expressions", "qualname": "Not", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Paren": {"fullname": "sqlglot.expressions.Paren", "modulename": "sqlglot.expressions", "qualname": "Paren", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Neg": {"fullname": "sqlglot.expressions.Neg", "modulename": "sqlglot.expressions", "qualname": "Neg", "kind": "class", "doc": "

\n", "bases": "Unary"}, "sqlglot.expressions.Alias": {"fullname": "sqlglot.expressions.Alias", "modulename": "sqlglot.expressions", "qualname": "Alias", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Alias.output_name": {"fullname": "sqlglot.expressions.Alias.output_name", "modulename": "sqlglot.expressions", "qualname": "Alias.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Aliases": {"fullname": "sqlglot.expressions.Aliases", "modulename": "sqlglot.expressions", "qualname": "Aliases", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.AtTimeZone": {"fullname": "sqlglot.expressions.AtTimeZone", "modulename": "sqlglot.expressions", "qualname": "AtTimeZone", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Between": {"fullname": "sqlglot.expressions.Between", "modulename": "sqlglot.expressions", "qualname": "Between", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.Bracket": {"fullname": "sqlglot.expressions.Bracket", "modulename": "sqlglot.expressions", "qualname": "Bracket", "kind": "class", "doc": "

\n", "bases": "Condition"}, "sqlglot.expressions.Distinct": {"fullname": "sqlglot.expressions.Distinct", "modulename": "sqlglot.expressions", "qualname": "Distinct", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.In": {"fullname": "sqlglot.expressions.In", "modulename": "sqlglot.expressions", "qualname": "In", "kind": "class", "doc": "

\n", "bases": "Predicate"}, "sqlglot.expressions.TimeUnit": {"fullname": "sqlglot.expressions.TimeUnit", "modulename": "sqlglot.expressions", "qualname": "TimeUnit", "kind": "class", "doc": "

Automatically converts unit arg into a var.

\n", "bases": "Expression"}, "sqlglot.expressions.TimeUnit.__init__": {"fullname": "sqlglot.expressions.TimeUnit.__init__", "modulename": "sqlglot.expressions", "qualname": "TimeUnit.__init__", "kind": "function", "doc": "

\n", "signature": "(**args)"}, "sqlglot.expressions.Interval": {"fullname": "sqlglot.expressions.Interval", "modulename": "sqlglot.expressions", "qualname": "Interval", "kind": "class", "doc": "

\n", "bases": "TimeUnit"}, "sqlglot.expressions.IgnoreNulls": {"fullname": "sqlglot.expressions.IgnoreNulls", "modulename": "sqlglot.expressions", "qualname": "IgnoreNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.RespectNulls": {"fullname": "sqlglot.expressions.RespectNulls", "modulename": "sqlglot.expressions", "qualname": "RespectNulls", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Func": {"fullname": "sqlglot.expressions.Func", "modulename": "sqlglot.expressions", "qualname": "Func", "kind": "class", "doc": "

The base class for all function expressions.

\n\n
Attributes:
\n\n
    \n
  • is_var_len_args (bool): if set to True the last argument defined in arg_types will be\ntreated as a variable length argument and the argument's value will be stored as a list.
  • \n
  • _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)\nfor this function expression. These values are used to map this node to a name during parsing\nas well as to provide the function's name during SQL string generation. By default the SQL\nname is set to the expression's class name transformed to snake case.
  • \n
\n", "bases": "Condition"}, "sqlglot.expressions.Func.from_arg_list": {"fullname": "sqlglot.expressions.Func.from_arg_list", "modulename": "sqlglot.expressions", "qualname": "Func.from_arg_list", "kind": "function", "doc": "

\n", "signature": "(cls, args):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_names": {"fullname": "sqlglot.expressions.Func.sql_names", "modulename": "sqlglot.expressions", "qualname": "Func.sql_names", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.sql_name": {"fullname": "sqlglot.expressions.Func.sql_name", "modulename": "sqlglot.expressions", "qualname": "Func.sql_name", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.Func.default_parser_mappings": {"fullname": "sqlglot.expressions.Func.default_parser_mappings", "modulename": "sqlglot.expressions", "qualname": "Func.default_parser_mappings", "kind": "function", "doc": "

\n", "signature": "(cls):", "funcdef": "def"}, "sqlglot.expressions.AggFunc": {"fullname": "sqlglot.expressions.AggFunc", "modulename": "sqlglot.expressions", "qualname": "AggFunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Abs": {"fullname": "sqlglot.expressions.Abs", "modulename": "sqlglot.expressions", "qualname": "Abs", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Anonymous": {"fullname": "sqlglot.expressions.Anonymous", "modulename": "sqlglot.expressions", "qualname": "Anonymous", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Hll": {"fullname": "sqlglot.expressions.Hll", "modulename": "sqlglot.expressions", "qualname": "Hll", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxDistinct": {"fullname": "sqlglot.expressions.ApproxDistinct", "modulename": "sqlglot.expressions", "qualname": "ApproxDistinct", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Array": {"fullname": "sqlglot.expressions.Array", "modulename": "sqlglot.expressions", "qualname": "Array", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ToChar": {"fullname": "sqlglot.expressions.ToChar", "modulename": "sqlglot.expressions", "qualname": "ToChar", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GenerateSeries": {"fullname": "sqlglot.expressions.GenerateSeries", "modulename": "sqlglot.expressions", "qualname": "GenerateSeries", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAgg": {"fullname": "sqlglot.expressions.ArrayAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ArrayAll": {"fullname": "sqlglot.expressions.ArrayAll", "modulename": "sqlglot.expressions", "qualname": "ArrayAll", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayAny": {"fullname": "sqlglot.expressions.ArrayAny", "modulename": "sqlglot.expressions", "qualname": "ArrayAny", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayConcat": {"fullname": "sqlglot.expressions.ArrayConcat", "modulename": "sqlglot.expressions", "qualname": "ArrayConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayContains": {"fullname": "sqlglot.expressions.ArrayContains", "modulename": "sqlglot.expressions", "qualname": "ArrayContains", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.ArrayContained": {"fullname": "sqlglot.expressions.ArrayContained", "modulename": "sqlglot.expressions", "qualname": "ArrayContained", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.ArrayFilter": {"fullname": "sqlglot.expressions.ArrayFilter", "modulename": "sqlglot.expressions", "qualname": "ArrayFilter", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayJoin": {"fullname": "sqlglot.expressions.ArrayJoin", "modulename": "sqlglot.expressions", "qualname": "ArrayJoin", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySize": {"fullname": "sqlglot.expressions.ArraySize", "modulename": "sqlglot.expressions", "qualname": "ArraySize", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySort": {"fullname": "sqlglot.expressions.ArraySort", "modulename": "sqlglot.expressions", "qualname": "ArraySort", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArraySum": {"fullname": "sqlglot.expressions.ArraySum", "modulename": "sqlglot.expressions", "qualname": "ArraySum", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ArrayUnionAgg": {"fullname": "sqlglot.expressions.ArrayUnionAgg", "modulename": "sqlglot.expressions", "qualname": "ArrayUnionAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Avg": {"fullname": "sqlglot.expressions.Avg", "modulename": "sqlglot.expressions", "qualname": "Avg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.AnyValue": {"fullname": "sqlglot.expressions.AnyValue", "modulename": "sqlglot.expressions", "qualname": "AnyValue", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Case": {"fullname": "sqlglot.expressions.Case", "modulename": "sqlglot.expressions", "qualname": "Case", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Case.when": {"fullname": "sqlglot.expressions.Case.when", "modulename": "sqlglot.expressions", "qualname": "Case.when", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: Union[str, sqlglot.expressions.Expression],\tthen: Union[str, sqlglot.expressions.Expression],\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Case:", "funcdef": "def"}, "sqlglot.expressions.Case.else_": {"fullname": "sqlglot.expressions.Case.else_", "modulename": "sqlglot.expressions", "qualname": "Case.else_", "kind": "function", "doc": "

\n", "signature": "(\tself,\tcondition: Union[str, sqlglot.expressions.Expression],\tcopy: bool = True,\t**opts) -> sqlglot.expressions.Case:", "funcdef": "def"}, "sqlglot.expressions.Cast": {"fullname": "sqlglot.expressions.Cast", "modulename": "sqlglot.expressions", "qualname": "Cast", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Cast.output_name": {"fullname": "sqlglot.expressions.Cast.output_name", "modulename": "sqlglot.expressions", "qualname": "Cast.output_name", "kind": "variable", "doc": "

Name of the output column if this expression is a selection.

\n\n

If the Expression has no output name, an empty string is returned.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> parse_one("SELECT a").expressions[0].output_name\n'a'\n>>> parse_one("SELECT b AS c").expressions[0].output_name\n'c'\n>>> parse_one("SELECT 1 + 2").expressions[0].output_name\n''\n
\n
\n
\n"}, "sqlglot.expressions.Cast.is_type": {"fullname": "sqlglot.expressions.Cast.is_type", "modulename": "sqlglot.expressions", "qualname": "Cast.is_type", "kind": "function", "doc": "

\n", "signature": "(self, dtype: sqlglot.expressions.DataType.Type) -> bool:", "funcdef": "def"}, "sqlglot.expressions.Collate": {"fullname": "sqlglot.expressions.Collate", "modulename": "sqlglot.expressions", "qualname": "Collate", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.TryCast": {"fullname": "sqlglot.expressions.TryCast", "modulename": "sqlglot.expressions", "qualname": "TryCast", "kind": "class", "doc": "

\n", "bases": "Cast"}, "sqlglot.expressions.Ceil": {"fullname": "sqlglot.expressions.Ceil", "modulename": "sqlglot.expressions", "qualname": "Ceil", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Coalesce": {"fullname": "sqlglot.expressions.Coalesce", "modulename": "sqlglot.expressions", "qualname": "Coalesce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Concat": {"fullname": "sqlglot.expressions.Concat", "modulename": "sqlglot.expressions", "qualname": "Concat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ConcatWs": {"fullname": "sqlglot.expressions.ConcatWs", "modulename": "sqlglot.expressions", "qualname": "ConcatWs", "kind": "class", "doc": "

\n", "bases": "Concat"}, "sqlglot.expressions.Count": {"fullname": "sqlglot.expressions.Count", "modulename": "sqlglot.expressions", "qualname": "Count", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CountIf": {"fullname": "sqlglot.expressions.CountIf", "modulename": "sqlglot.expressions", "qualname": "CountIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.CurrentDate": {"fullname": "sqlglot.expressions.CurrentDate", "modulename": "sqlglot.expressions", "qualname": "CurrentDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentDatetime": {"fullname": "sqlglot.expressions.CurrentDatetime", "modulename": "sqlglot.expressions", "qualname": "CurrentDatetime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTime": {"fullname": "sqlglot.expressions.CurrentTime", "modulename": "sqlglot.expressions", "qualname": "CurrentTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentTimestamp": {"fullname": "sqlglot.expressions.CurrentTimestamp", "modulename": "sqlglot.expressions", "qualname": "CurrentTimestamp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.CurrentUser": {"fullname": "sqlglot.expressions.CurrentUser", "modulename": "sqlglot.expressions", "qualname": "CurrentUser", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateAdd": {"fullname": "sqlglot.expressions.DateAdd", "modulename": "sqlglot.expressions", "qualname": "DateAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateSub": {"fullname": "sqlglot.expressions.DateSub", "modulename": "sqlglot.expressions", "qualname": "DateSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateDiff": {"fullname": "sqlglot.expressions.DateDiff", "modulename": "sqlglot.expressions", "qualname": "DateDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateTrunc": {"fullname": "sqlglot.expressions.DateTrunc", "modulename": "sqlglot.expressions", "qualname": "DateTrunc", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DatetimeAdd": {"fullname": "sqlglot.expressions.DatetimeAdd", "modulename": "sqlglot.expressions", "qualname": "DatetimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeSub": {"fullname": "sqlglot.expressions.DatetimeSub", "modulename": "sqlglot.expressions", "qualname": "DatetimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeDiff": {"fullname": "sqlglot.expressions.DatetimeDiff", "modulename": "sqlglot.expressions", "qualname": "DatetimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DatetimeTrunc": {"fullname": "sqlglot.expressions.DatetimeTrunc", "modulename": "sqlglot.expressions", "qualname": "DatetimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DayOfWeek": {"fullname": "sqlglot.expressions.DayOfWeek", "modulename": "sqlglot.expressions", "qualname": "DayOfWeek", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfMonth": {"fullname": "sqlglot.expressions.DayOfMonth", "modulename": "sqlglot.expressions", "qualname": "DayOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DayOfYear": {"fullname": "sqlglot.expressions.DayOfYear", "modulename": "sqlglot.expressions", "qualname": "DayOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.WeekOfYear": {"fullname": "sqlglot.expressions.WeekOfYear", "modulename": "sqlglot.expressions", "qualname": "WeekOfYear", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LastDateOfMonth": {"fullname": "sqlglot.expressions.LastDateOfMonth", "modulename": "sqlglot.expressions", "qualname": "LastDateOfMonth", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Extract": {"fullname": "sqlglot.expressions.Extract", "modulename": "sqlglot.expressions", "qualname": "Extract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimestampAdd": {"fullname": "sqlglot.expressions.TimestampAdd", "modulename": "sqlglot.expressions", "qualname": "TimestampAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampSub": {"fullname": "sqlglot.expressions.TimestampSub", "modulename": "sqlglot.expressions", "qualname": "TimestampSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampDiff": {"fullname": "sqlglot.expressions.TimestampDiff", "modulename": "sqlglot.expressions", "qualname": "TimestampDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimestampTrunc": {"fullname": "sqlglot.expressions.TimestampTrunc", "modulename": "sqlglot.expressions", "qualname": "TimestampTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeAdd": {"fullname": "sqlglot.expressions.TimeAdd", "modulename": "sqlglot.expressions", "qualname": "TimeAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeSub": {"fullname": "sqlglot.expressions.TimeSub", "modulename": "sqlglot.expressions", "qualname": "TimeSub", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeDiff": {"fullname": "sqlglot.expressions.TimeDiff", "modulename": "sqlglot.expressions", "qualname": "TimeDiff", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TimeTrunc": {"fullname": "sqlglot.expressions.TimeTrunc", "modulename": "sqlglot.expressions", "qualname": "TimeTrunc", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.DateFromParts": {"fullname": "sqlglot.expressions.DateFromParts", "modulename": "sqlglot.expressions", "qualname": "DateFromParts", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateStrToDate": {"fullname": "sqlglot.expressions.DateStrToDate", "modulename": "sqlglot.expressions", "qualname": "DateStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDateStr": {"fullname": "sqlglot.expressions.DateToDateStr", "modulename": "sqlglot.expressions", "qualname": "DateToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DateToDi": {"fullname": "sqlglot.expressions.DateToDi", "modulename": "sqlglot.expressions", "qualname": "DateToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Day": {"fullname": "sqlglot.expressions.Day", "modulename": "sqlglot.expressions", "qualname": "Day", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Decode": {"fullname": "sqlglot.expressions.Decode", "modulename": "sqlglot.expressions", "qualname": "Decode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.DiToDate": {"fullname": "sqlglot.expressions.DiToDate", "modulename": "sqlglot.expressions", "qualname": "DiToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Encode": {"fullname": "sqlglot.expressions.Encode", "modulename": "sqlglot.expressions", "qualname": "Encode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Exp": {"fullname": "sqlglot.expressions.Exp", "modulename": "sqlglot.expressions", "qualname": "Exp", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Explode": {"fullname": "sqlglot.expressions.Explode", "modulename": "sqlglot.expressions", "qualname": "Explode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ExponentialTimeDecayedAvg": {"fullname": "sqlglot.expressions.ExponentialTimeDecayedAvg", "modulename": "sqlglot.expressions", "qualname": "ExponentialTimeDecayedAvg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Floor": {"fullname": "sqlglot.expressions.Floor", "modulename": "sqlglot.expressions", "qualname": "Floor", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Greatest": {"fullname": "sqlglot.expressions.Greatest", "modulename": "sqlglot.expressions", "qualname": "Greatest", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupConcat": {"fullname": "sqlglot.expressions.GroupConcat", "modulename": "sqlglot.expressions", "qualname": "GroupConcat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.GroupUniqArray": {"fullname": "sqlglot.expressions.GroupUniqArray", "modulename": "sqlglot.expressions", "qualname": "GroupUniqArray", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Hex": {"fullname": "sqlglot.expressions.Hex", "modulename": "sqlglot.expressions", "qualname": "Hex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Histogram": {"fullname": "sqlglot.expressions.Histogram", "modulename": "sqlglot.expressions", "qualname": "Histogram", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.If": {"fullname": "sqlglot.expressions.If", "modulename": "sqlglot.expressions", "qualname": "If", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.IfNull": {"fullname": "sqlglot.expressions.IfNull", "modulename": "sqlglot.expressions", "qualname": "IfNull", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Initcap": {"fullname": "sqlglot.expressions.Initcap", "modulename": "sqlglot.expressions", "qualname": "Initcap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONKeyValue": {"fullname": "sqlglot.expressions.JSONKeyValue", "modulename": "sqlglot.expressions", "qualname": "JSONKeyValue", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.JSONObject": {"fullname": "sqlglot.expressions.JSONObject", "modulename": "sqlglot.expressions", "qualname": "JSONObject", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.JSONBContains": {"fullname": "sqlglot.expressions.JSONBContains", "modulename": "sqlglot.expressions", "qualname": "JSONBContains", "kind": "class", "doc": "

\n", "bases": "Binary"}, "sqlglot.expressions.JSONExtract": {"fullname": "sqlglot.expressions.JSONExtract", "modulename": "sqlglot.expressions", "qualname": "JSONExtract", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.JSONExtractScalar": {"fullname": "sqlglot.expressions.JSONExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtract": {"fullname": "sqlglot.expressions.JSONBExtract", "modulename": "sqlglot.expressions", "qualname": "JSONBExtract", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONBExtractScalar": {"fullname": "sqlglot.expressions.JSONBExtractScalar", "modulename": "sqlglot.expressions", "qualname": "JSONBExtractScalar", "kind": "class", "doc": "

\n", "bases": "JSONExtract"}, "sqlglot.expressions.JSONFormat": {"fullname": "sqlglot.expressions.JSONFormat", "modulename": "sqlglot.expressions", "qualname": "JSONFormat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Least": {"fullname": "sqlglot.expressions.Least", "modulename": "sqlglot.expressions", "qualname": "Least", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Length": {"fullname": "sqlglot.expressions.Length", "modulename": "sqlglot.expressions", "qualname": "Length", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Levenshtein": {"fullname": "sqlglot.expressions.Levenshtein", "modulename": "sqlglot.expressions", "qualname": "Levenshtein", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Ln": {"fullname": "sqlglot.expressions.Ln", "modulename": "sqlglot.expressions", "qualname": "Ln", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log": {"fullname": "sqlglot.expressions.Log", "modulename": "sqlglot.expressions", "qualname": "Log", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log2": {"fullname": "sqlglot.expressions.Log2", "modulename": "sqlglot.expressions", "qualname": "Log2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Log10": {"fullname": "sqlglot.expressions.Log10", "modulename": "sqlglot.expressions", "qualname": "Log10", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.LogicalOr": {"fullname": "sqlglot.expressions.LogicalOr", "modulename": "sqlglot.expressions", "qualname": "LogicalOr", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.LogicalAnd": {"fullname": "sqlglot.expressions.LogicalAnd", "modulename": "sqlglot.expressions", "qualname": "LogicalAnd", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Lower": {"fullname": "sqlglot.expressions.Lower", "modulename": "sqlglot.expressions", "qualname": "Lower", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Map": {"fullname": "sqlglot.expressions.Map", "modulename": "sqlglot.expressions", "qualname": "Map", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StarMap": {"fullname": "sqlglot.expressions.StarMap", "modulename": "sqlglot.expressions", "qualname": "StarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.VarMap": {"fullname": "sqlglot.expressions.VarMap", "modulename": "sqlglot.expressions", "qualname": "VarMap", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.MatchAgainst": {"fullname": "sqlglot.expressions.MatchAgainst", "modulename": "sqlglot.expressions", "qualname": "MatchAgainst", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Max": {"fullname": "sqlglot.expressions.Max", "modulename": "sqlglot.expressions", "qualname": "Max", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.MD5": {"fullname": "sqlglot.expressions.MD5", "modulename": "sqlglot.expressions", "qualname": "MD5", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Min": {"fullname": "sqlglot.expressions.Min", "modulename": "sqlglot.expressions", "qualname": "Min", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Month": {"fullname": "sqlglot.expressions.Month", "modulename": "sqlglot.expressions", "qualname": "Month", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Nvl2": {"fullname": "sqlglot.expressions.Nvl2", "modulename": "sqlglot.expressions", "qualname": "Nvl2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Posexplode": {"fullname": "sqlglot.expressions.Posexplode", "modulename": "sqlglot.expressions", "qualname": "Posexplode", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Pow": {"fullname": "sqlglot.expressions.Pow", "modulename": "sqlglot.expressions", "qualname": "Pow", "kind": "class", "doc": "

\n", "bases": "Binary, Func"}, "sqlglot.expressions.PercentileCont": {"fullname": "sqlglot.expressions.PercentileCont", "modulename": "sqlglot.expressions", "qualname": "PercentileCont", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.PercentileDisc": {"fullname": "sqlglot.expressions.PercentileDisc", "modulename": "sqlglot.expressions", "qualname": "PercentileDisc", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantile": {"fullname": "sqlglot.expressions.Quantile", "modulename": "sqlglot.expressions", "qualname": "Quantile", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Quantiles": {"fullname": "sqlglot.expressions.Quantiles", "modulename": "sqlglot.expressions", "qualname": "Quantiles", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.QuantileIf": {"fullname": "sqlglot.expressions.QuantileIf", "modulename": "sqlglot.expressions", "qualname": "QuantileIf", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.ApproxQuantile": {"fullname": "sqlglot.expressions.ApproxQuantile", "modulename": "sqlglot.expressions", "qualname": "ApproxQuantile", "kind": "class", "doc": "

\n", "bases": "Quantile"}, "sqlglot.expressions.RangeN": {"fullname": "sqlglot.expressions.RangeN", "modulename": "sqlglot.expressions", "qualname": "RangeN", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.ReadCSV": {"fullname": "sqlglot.expressions.ReadCSV", "modulename": "sqlglot.expressions", "qualname": "ReadCSV", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Reduce": {"fullname": "sqlglot.expressions.Reduce", "modulename": "sqlglot.expressions", "qualname": "Reduce", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpExtract": {"fullname": "sqlglot.expressions.RegexpExtract", "modulename": "sqlglot.expressions", "qualname": "RegexpExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpLike": {"fullname": "sqlglot.expressions.RegexpLike", "modulename": "sqlglot.expressions", "qualname": "RegexpLike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpILike": {"fullname": "sqlglot.expressions.RegexpILike", "modulename": "sqlglot.expressions", "qualname": "RegexpILike", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RegexpSplit": {"fullname": "sqlglot.expressions.RegexpSplit", "modulename": "sqlglot.expressions", "qualname": "RegexpSplit", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Repeat": {"fullname": "sqlglot.expressions.Repeat", "modulename": "sqlglot.expressions", "qualname": "Repeat", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Round": {"fullname": "sqlglot.expressions.Round", "modulename": "sqlglot.expressions", "qualname": "Round", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.RowNumber": {"fullname": "sqlglot.expressions.RowNumber", "modulename": "sqlglot.expressions", "qualname": "RowNumber", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SafeDivide": {"fullname": "sqlglot.expressions.SafeDivide", "modulename": "sqlglot.expressions", "qualname": "SafeDivide", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SetAgg": {"fullname": "sqlglot.expressions.SetAgg", "modulename": "sqlglot.expressions", "qualname": "SetAgg", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.SHA": {"fullname": "sqlglot.expressions.SHA", "modulename": "sqlglot.expressions", "qualname": "SHA", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SHA2": {"fullname": "sqlglot.expressions.SHA2", "modulename": "sqlglot.expressions", "qualname": "SHA2", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.SortArray": {"fullname": "sqlglot.expressions.SortArray", "modulename": "sqlglot.expressions", "qualname": "SortArray", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Split": {"fullname": "sqlglot.expressions.Split", "modulename": "sqlglot.expressions", "qualname": "Split", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Substring": {"fullname": "sqlglot.expressions.Substring", "modulename": "sqlglot.expressions", "qualname": "Substring", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrPosition": {"fullname": "sqlglot.expressions.StrPosition", "modulename": "sqlglot.expressions", "qualname": "StrPosition", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToDate": {"fullname": "sqlglot.expressions.StrToDate", "modulename": "sqlglot.expressions", "qualname": "StrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToTime": {"fullname": "sqlglot.expressions.StrToTime", "modulename": "sqlglot.expressions", "qualname": "StrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StrToUnix": {"fullname": "sqlglot.expressions.StrToUnix", "modulename": "sqlglot.expressions", "qualname": "StrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.NumberToStr": {"fullname": "sqlglot.expressions.NumberToStr", "modulename": "sqlglot.expressions", "qualname": "NumberToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Struct": {"fullname": "sqlglot.expressions.Struct", "modulename": "sqlglot.expressions", "qualname": "Struct", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.StructExtract": {"fullname": "sqlglot.expressions.StructExtract", "modulename": "sqlglot.expressions", "qualname": "StructExtract", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Sum": {"fullname": "sqlglot.expressions.Sum", "modulename": "sqlglot.expressions", "qualname": "Sum", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Sqrt": {"fullname": "sqlglot.expressions.Sqrt", "modulename": "sqlglot.expressions", "qualname": "Sqrt", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Stddev": {"fullname": "sqlglot.expressions.Stddev", "modulename": "sqlglot.expressions", "qualname": "Stddev", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevPop": {"fullname": "sqlglot.expressions.StddevPop", "modulename": "sqlglot.expressions", "qualname": "StddevPop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.StddevSamp": {"fullname": "sqlglot.expressions.StddevSamp", "modulename": "sqlglot.expressions", "qualname": "StddevSamp", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.TimeToStr": {"fullname": "sqlglot.expressions.TimeToStr", "modulename": "sqlglot.expressions", "qualname": "TimeToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToTimeStr": {"fullname": "sqlglot.expressions.TimeToTimeStr", "modulename": "sqlglot.expressions", "qualname": "TimeToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeToUnix": {"fullname": "sqlglot.expressions.TimeToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToDate": {"fullname": "sqlglot.expressions.TimeStrToDate", "modulename": "sqlglot.expressions", "qualname": "TimeStrToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToTime": {"fullname": "sqlglot.expressions.TimeStrToTime", "modulename": "sqlglot.expressions", "qualname": "TimeStrToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TimeStrToUnix": {"fullname": "sqlglot.expressions.TimeStrToUnix", "modulename": "sqlglot.expressions", "qualname": "TimeStrToUnix", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Trim": {"fullname": "sqlglot.expressions.Trim", "modulename": "sqlglot.expressions", "qualname": "Trim", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsAdd": {"fullname": "sqlglot.expressions.TsOrDsAdd", "modulename": "sqlglot.expressions", "qualname": "TsOrDsAdd", "kind": "class", "doc": "

\n", "bases": "Func, TimeUnit"}, "sqlglot.expressions.TsOrDsToDateStr": {"fullname": "sqlglot.expressions.TsOrDsToDateStr", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDateStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDsToDate": {"fullname": "sqlglot.expressions.TsOrDsToDate", "modulename": "sqlglot.expressions", "qualname": "TsOrDsToDate", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.TsOrDiToDi": {"fullname": "sqlglot.expressions.TsOrDiToDi", "modulename": "sqlglot.expressions", "qualname": "TsOrDiToDi", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Unhex": {"fullname": "sqlglot.expressions.Unhex", "modulename": "sqlglot.expressions", "qualname": "Unhex", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToStr": {"fullname": "sqlglot.expressions.UnixToStr", "modulename": "sqlglot.expressions", "qualname": "UnixToStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTime": {"fullname": "sqlglot.expressions.UnixToTime", "modulename": "sqlglot.expressions", "qualname": "UnixToTime", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.UnixToTimeStr": {"fullname": "sqlglot.expressions.UnixToTimeStr", "modulename": "sqlglot.expressions", "qualname": "UnixToTimeStr", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Upper": {"fullname": "sqlglot.expressions.Upper", "modulename": "sqlglot.expressions", "qualname": "Upper", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Variance": {"fullname": "sqlglot.expressions.Variance", "modulename": "sqlglot.expressions", "qualname": "Variance", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.VariancePop": {"fullname": "sqlglot.expressions.VariancePop", "modulename": "sqlglot.expressions", "qualname": "VariancePop", "kind": "class", "doc": "

\n", "bases": "AggFunc"}, "sqlglot.expressions.Week": {"fullname": "sqlglot.expressions.Week", "modulename": "sqlglot.expressions", "qualname": "Week", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.XMLTable": {"fullname": "sqlglot.expressions.XMLTable", "modulename": "sqlglot.expressions", "qualname": "XMLTable", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Year": {"fullname": "sqlglot.expressions.Year", "modulename": "sqlglot.expressions", "qualname": "Year", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.Use": {"fullname": "sqlglot.expressions.Use", "modulename": "sqlglot.expressions", "qualname": "Use", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.Merge": {"fullname": "sqlglot.expressions.Merge", "modulename": "sqlglot.expressions", "qualname": "Merge", "kind": "class", "doc": "

\n", "bases": "Expression"}, "sqlglot.expressions.When": {"fullname": "sqlglot.expressions.When", "modulename": "sqlglot.expressions", "qualname": "When", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.NextValueFor": {"fullname": "sqlglot.expressions.NextValueFor", "modulename": "sqlglot.expressions", "qualname": "NextValueFor", "kind": "class", "doc": "

\n", "bases": "Func"}, "sqlglot.expressions.maybe_parse": {"fullname": "sqlglot.expressions.maybe_parse", "modulename": "sqlglot.expressions", "qualname": "maybe_parse", "kind": "function", "doc": "

Gracefully handle a possible string or expression.

\n\n
Example:
\n\n
\n
\n
>>> maybe_parse("1")\n(LITERAL this: 1, is_string: False)\n>>> maybe_parse(to_identifier("x"))\n(IDENTIFIER this: x, quoted: False)\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • sql_or_expression: the SQL code string or an expression
  • \n
  • into: the SQLGlot Expression to parse into
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • prefix: a string to prefix the sql with before it gets parsed\n(automatically includes a space)
  • \n
  • copy: whether or not to copy the expression.
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Expression: the parsed or given expression.

\n
\n", "signature": "(\tsql_or_expression: Union[str, sqlglot.expressions.Expression],\t*,\tinto: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]], NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\tprefix: Optional[str] = None,\tcopy: bool = False,\t**opts) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.union": {"fullname": "sqlglot.expressions.union", "modulename": "sqlglot.expressions", "qualname": "union", "kind": "function", "doc": "

Initializes a syntax tree from one UNION expression.

\n\n
Example:
\n\n
\n
\n
>>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo UNION SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Union: the syntax tree for the UNION expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.intersect": {"fullname": "sqlglot.expressions.intersect", "modulename": "sqlglot.expressions", "qualname": "intersect", "kind": "function", "doc": "

Initializes a syntax tree from one INTERSECT expression.

\n\n
Example:
\n\n
\n
\n
>>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo INTERSECT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Intersect: the syntax tree for the INTERSECT expression.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.except_": {"fullname": "sqlglot.expressions.except_", "modulename": "sqlglot.expressions", "qualname": "except_", "kind": "function", "doc": "

Initializes a syntax tree from one EXCEPT expression.

\n\n
Example:
\n\n
\n
\n
>>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()\n'SELECT * FROM foo EXCEPT SELECT * FROM bla'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • left (str | Expression): the SQL code string corresponding to the left-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • right (str | Expression): the SQL code string corresponding to the right-hand side.\nIf an Expression instance is passed, it will be used as-is.
  • \n
  • distinct (bool): set the DISTINCT flag if and only if this is true.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • opts (kwargs): other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Except: the syntax tree for the EXCEPT statement.

\n
\n", "signature": "(left, right, distinct=True, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.select": {"fullname": "sqlglot.expressions.select", "modulename": "sqlglot.expressions", "qualname": "select", "kind": "function", "doc": "

Initializes a syntax tree from one or multiple SELECT expressions.

\n\n
Example:
\n\n
\n
\n
>>> select("col1", "col2").from_("tbl").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions: the SQL code string to parse as the expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect: the dialect used to parse the input expressions (in the case that an\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat an input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(\t*expressions: Union[str, sqlglot.expressions.Expression],\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.from_": {"fullname": "sqlglot.expressions.from_", "modulename": "sqlglot.expressions", "qualname": "from_", "kind": "function", "doc": "

Initializes a syntax tree from a FROM expression.

\n\n
Example:
\n\n
\n
\n
>>> from_("tbl").select("col1", "col2").sql()\n'SELECT col1, col2 FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a\nSELECT statement. If an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Select: the syntax tree for the SELECT statement.

\n
\n", "signature": "(*expressions, dialect=None, **opts) -> sqlglot.expressions.Select:", "funcdef": "def"}, "sqlglot.expressions.update": {"fullname": "sqlglot.expressions.update", "modulename": "sqlglot.expressions", "qualname": "update", "kind": "function", "doc": "

Creates an update statement.

\n\n
Example:
\n\n
\n
\n
>>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()\n"UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *properties: dictionary of properties to set which are\nauto converted to sql objects eg None -> NULL
  • \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • from_: sql statement parsed into a FROM statement
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Update: the syntax tree for the UPDATE statement.

\n
\n", "signature": "(\ttable: str | sqlglot.expressions.Table,\tproperties: dict,\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tfrom_: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Update:", "funcdef": "def"}, "sqlglot.expressions.delete": {"fullname": "sqlglot.expressions.delete", "modulename": "sqlglot.expressions", "qualname": "delete", "kind": "function", "doc": "

Builds a delete statement.

\n\n
Example:
\n\n
\n
\n
>>> delete("my_table", where="id > 1").sql()\n'DELETE FROM my_table WHERE id > 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • where: sql conditional parsed into a WHERE statement
  • \n
  • returning: sql conditional parsed into a RETURNING statement
  • \n
  • dialect: the dialect used to parse the input expressions.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Delete: the syntax tree for the DELETE statement.

\n
\n", "signature": "(\ttable: Union[str, sqlglot.expressions.Expression],\twhere: Union[str, sqlglot.expressions.Expression, NoneType] = None,\treturning: Union[str, sqlglot.expressions.Expression, NoneType] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts) -> sqlglot.expressions.Delete:", "funcdef": "def"}, "sqlglot.expressions.condition": {"fullname": "sqlglot.expressions.condition", "modulename": "sqlglot.expressions", "qualname": "condition", "kind": "function", "doc": "

Initialize a logical condition expression.

\n\n
Example:
\n\n
\n
\n
>>> condition("x=1").sql()\n'x = 1'\n
\n
\n \n

This is helpful for composing larger logical syntax trees:

\n \n
\n
>>> where = condition("x=1")\n>>> where = where.and_("y=1")\n>>> Select().from_("tbl").select("*").where(where).sql()\n'SELECT * FROM tbl WHERE x = 1 AND y = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expression (str | Expression): the SQL code string to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression (in the case that the\ninput expression is a SQL string).
  • \n
  • copy (bool): Whether or not to copy expression (only applies to expressions).
  • \n
  • **opts: other options to use to parse the input expressions (again, in the case\nthat the input expression is a SQL string).
  • \n
\n\n
Returns:
\n\n
\n

Condition: the expression

\n
\n", "signature": "(\texpression,\tdialect=None,\tcopy=True,\t**opts) -> sqlglot.expressions.Condition:", "funcdef": "def"}, "sqlglot.expressions.and_": {"fullname": "sqlglot.expressions.and_", "modulename": "sqlglot.expressions", "qualname": "and_", "kind": "function", "doc": "

Combine multiple conditions with an AND logical operator.

\n\n
Example:
\n\n
\n
\n
>>> and_("x=1", and_("y=1", "z=1")).sql()\n'x = 1 AND (y = 1 AND z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): whether or not to copy expressions (only applies to Expressions).
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

And: the new condition

\n
\n", "signature": "(*expressions, dialect=None, copy=True, **opts) -> sqlglot.expressions.And:", "funcdef": "def"}, "sqlglot.expressions.or_": {"fullname": "sqlglot.expressions.or_", "modulename": "sqlglot.expressions", "qualname": "or_", "kind": "function", "doc": "

Combine multiple conditions with an OR logical operator.

\n\n
Example:
\n\n
\n
\n
>>> or_("x=1", or_("y=1", "z=1")).sql()\n'x = 1 OR (y = 1 OR z = 1)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • *expressions (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • copy (bool): whether or not to copy expressions (only applies to Expressions).
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Or: the new condition

\n
\n", "signature": "(*expressions, dialect=None, copy=True, **opts) -> sqlglot.expressions.Or:", "funcdef": "def"}, "sqlglot.expressions.not_": {"fullname": "sqlglot.expressions.not_", "modulename": "sqlglot.expressions", "qualname": "not_", "kind": "function", "doc": "

Wrap a condition with a NOT operator.

\n\n
Example:
\n\n
\n
\n
>>> not_("this_suit='black'").sql()\n"NOT this_suit = 'black'"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Not: the new condition

\n
\n", "signature": "(expression, dialect=None, copy=True, **opts) -> sqlglot.expressions.Not:", "funcdef": "def"}, "sqlglot.expressions.paren": {"fullname": "sqlglot.expressions.paren", "modulename": "sqlglot.expressions", "qualname": "paren", "kind": "function", "doc": "

\n", "signature": "(expression, copy=True) -> sqlglot.expressions.Paren:", "funcdef": "def"}, "sqlglot.expressions.to_identifier": {"fullname": "sqlglot.expressions.to_identifier", "modulename": "sqlglot.expressions", "qualname": "to_identifier", "kind": "function", "doc": "

Builds an identifier.

\n\n
Arguments:
\n\n
    \n
  • name: The name to turn into an identifier.
  • \n
  • quoted: Whether or not force quote the identifier.
  • \n
\n\n
Returns:
\n\n
\n

The identifier ast node.

\n
\n", "signature": "(name, quoted=None):", "funcdef": "def"}, "sqlglot.expressions.to_interval": {"fullname": "sqlglot.expressions.to_interval", "modulename": "sqlglot.expressions", "qualname": "to_interval", "kind": "function", "doc": "

Builds an interval expression from a string like '1 day' or '5 months'.

\n", "signature": "(\tinterval: str | sqlglot.expressions.Literal) -> sqlglot.expressions.Interval:", "funcdef": "def"}, "sqlglot.expressions.to_table": {"fullname": "sqlglot.expressions.to_table", "modulename": "sqlglot.expressions", "qualname": "to_table", "kind": "function", "doc": "

Create a table expression from a [catalog].[schema].[table] sql path. Catalog and schema are optional.\nIf a table is passed in then that table is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: a [catalog].[schema].[table] string.
  • \n
\n\n
Returns:
\n\n
\n

A table expression.

\n
\n", "signature": "(\tsql_path: Union[str, sqlglot.expressions.Table, NoneType],\t**kwargs) -> Optional[sqlglot.expressions.Table]:", "funcdef": "def"}, "sqlglot.expressions.to_column": {"fullname": "sqlglot.expressions.to_column", "modulename": "sqlglot.expressions", "qualname": "to_column", "kind": "function", "doc": "

Create a column from a [table].[column] sql path. Schema is optional.

\n\n

If a column is passed in then that column is returned.

\n\n
Arguments:
\n\n
    \n
  • sql_path: [table].[column] string
  • \n
\n\n
Returns:
\n\n
\n

Table: A column expression

\n
\n", "signature": "(\tsql_path: str | sqlglot.expressions.Column,\t**kwargs) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.alias_": {"fullname": "sqlglot.expressions.alias_", "modulename": "sqlglot.expressions", "qualname": "alias_", "kind": "function", "doc": "

Create an Alias expression.

\n\n
Example:
\n\n
\n
\n
>>> alias_('foo', 'bar').sql()\n'foo AS bar'\n
\n
\n \n
\n
>>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()\n'(SELECT 1, 2) AS bar(a, b)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias: the alias name to use. If the name has\nspecial characters it is quoted.
  • \n
  • table: Whether or not to create a table alias, can also be a list of columns.
  • \n
  • quoted: whether or not to quote the alias
  • \n
  • dialect: the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Alias: the aliased expression

\n
\n", "signature": "(\texpression: Union[str, sqlglot.expressions.Expression],\talias: str | sqlglot.expressions.Identifier,\ttable: Union[bool, Sequence[str | sqlglot.expressions.Identifier]] = False,\tquoted: Optional[bool] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**opts):", "funcdef": "def"}, "sqlglot.expressions.subquery": {"fullname": "sqlglot.expressions.subquery", "modulename": "sqlglot.expressions", "qualname": "subquery", "kind": "function", "doc": "

Build a subquery expression.

\n\n
Example:
\n\n
\n
\n
>>> subquery('select x from tbl', 'bar').select('x').sql()\n'SELECT x FROM (SELECT x FROM tbl) AS bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (str | Expression): the SQL code strings to parse.\nIf an Expression instance is passed, this is used as-is.
  • \n
  • alias (str | Expression): the alias name to use.
  • \n
  • dialect (str): the dialect used to parse the input expression.
  • \n
  • **opts: other options to use to parse the input expressions.
  • \n
\n\n
Returns:
\n\n
\n

Select: a new select with the subquery expression included

\n
\n", "signature": "(expression, alias=None, dialect=None, **opts):", "funcdef": "def"}, "sqlglot.expressions.column": {"fullname": "sqlglot.expressions.column", "modulename": "sqlglot.expressions", "qualname": "column", "kind": "function", "doc": "

Build a Column.

\n\n
Arguments:
\n\n
    \n
  • col: column name
  • \n
  • table: table name
  • \n
  • db: db name
  • \n
  • catalog: catalog name
  • \n
  • quoted: whether or not to force quote each part
  • \n
\n\n
Returns:
\n\n
\n

Column: column instance

\n
\n", "signature": "(\tcol: str | sqlglot.expressions.Identifier,\ttable: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tdb: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tcatalog: Union[str, sqlglot.expressions.Identifier, NoneType] = None,\tquoted: Optional[bool] = None) -> sqlglot.expressions.Column:", "funcdef": "def"}, "sqlglot.expressions.cast": {"fullname": "sqlglot.expressions.cast", "modulename": "sqlglot.expressions", "qualname": "cast", "kind": "function", "doc": "

Cast an expression to a data type.

\n\n
Example:
\n\n
\n
\n
>>> cast('x + 1', 'int').sql()\n'CAST(x + 1 AS INT)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to cast.
  • \n
  • to: The datatype to cast to.
  • \n
\n\n
Returns:
\n\n
\n

A cast node.

\n
\n", "signature": "(\texpression: Union[str, sqlglot.expressions.Expression],\tto: str | sqlglot.expressions.DataType | sqlglot.expressions.DataType.Type,\t**opts) -> sqlglot.expressions.Cast:", "funcdef": "def"}, "sqlglot.expressions.table_": {"fullname": "sqlglot.expressions.table_", "modulename": "sqlglot.expressions", "qualname": "table_", "kind": "function", "doc": "

Build a Table.

\n\n
Arguments:
\n\n
    \n
  • table (str | Expression): column name
  • \n
  • db (str | Expression): db name
  • \n
  • catalog (str | Expression): catalog name
  • \n
\n\n
Returns:
\n\n
\n

Table: table instance

\n
\n", "signature": "(\ttable,\tdb=None,\tcatalog=None,\tquoted=None,\talias=None) -> sqlglot.expressions.Table:", "funcdef": "def"}, "sqlglot.expressions.values": {"fullname": "sqlglot.expressions.values", "modulename": "sqlglot.expressions", "qualname": "values", "kind": "function", "doc": "

Build VALUES statement.

\n\n
Example:
\n\n
\n
\n
>>> values([(1, '2')]).sql()\n"VALUES (1, '2')"\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: values statements that will be converted to SQL
  • \n
  • alias: optional alias
  • \n
  • columns: Optional list of ordered column names or ordered dictionary of column names to types.\nIf either are provided then an alias is also required.
  • \n
\n\n
Returns:
\n\n
\n

Values: the Values expression object

\n
\n", "signature": "(\tvalues: Iterable[Tuple[Any, ...]],\talias: Optional[str] = None,\tcolumns: Union[Iterable[str], Dict[str, sqlglot.expressions.DataType], NoneType] = None) -> sqlglot.expressions.Values:", "funcdef": "def"}, "sqlglot.expressions.var": {"fullname": "sqlglot.expressions.var", "modulename": "sqlglot.expressions", "qualname": "var", "kind": "function", "doc": "

Build a SQL variable.

\n\n
Example:
\n\n
\n
\n
>>> repr(var('x'))\n'(VAR this: x)'\n
\n
\n \n
\n
>>> repr(var(column('x', table='y')))\n'(VAR this: x)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: The name of the var or an expression who's name will become the var.
  • \n
\n\n
Returns:
\n\n
\n

The new variable node.

\n
\n", "signature": "(\tname: Union[str, sqlglot.expressions.Expression, NoneType]) -> sqlglot.expressions.Var:", "funcdef": "def"}, "sqlglot.expressions.rename_table": {"fullname": "sqlglot.expressions.rename_table", "modulename": "sqlglot.expressions", "qualname": "rename_table", "kind": "function", "doc": "

Build ALTER TABLE... RENAME... expression

\n\n
Arguments:
\n\n
    \n
  • old_name: The old name of the table
  • \n
  • new_name: The new name of the table
  • \n
\n\n
Returns:
\n\n
\n

Alter table expression

\n
\n", "signature": "(\told_name: str | sqlglot.expressions.Table,\tnew_name: str | sqlglot.expressions.Table) -> sqlglot.expressions.AlterTable:", "funcdef": "def"}, "sqlglot.expressions.convert": {"fullname": "sqlglot.expressions.convert", "modulename": "sqlglot.expressions", "qualname": "convert", "kind": "function", "doc": "

Convert a python value into an expression object.

\n\n

Raises an error if a conversion is not possible.

\n\n
Arguments:
\n\n
    \n
  • value: A python object.
  • \n
  • copy: Whether or not to copy value (only applies to Expressions and collections).
  • \n
\n\n
Returns:
\n\n
\n

Expression: the equivalent expression object.

\n
\n", "signature": "(value: Any, copy: bool = False) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.replace_children": {"fullname": "sqlglot.expressions.replace_children", "modulename": "sqlglot.expressions", "qualname": "replace_children", "kind": "function", "doc": "

Replace children of an expression with the result of a lambda fun(child) -> exp.

\n", "signature": "(expression, fun, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.column_table_names": {"fullname": "sqlglot.expressions.column_table_names", "modulename": "sqlglot.expressions", "qualname": "column_table_names", "kind": "function", "doc": "

Return all table names referenced through columns in an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))\n['c', 'a']\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to find table names
  • \n
\n\n
Returns:
\n\n
\n

list: A list of unique names

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.expressions.table_name": {"fullname": "sqlglot.expressions.table_name", "modulename": "sqlglot.expressions", "qualname": "table_name", "kind": "function", "doc": "

Get the full name of a table as a string.

\n\n
Arguments:
\n\n
    \n
  • table (exp.Table | str): table expression node or string.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> table_name(parse_one("select * from a.b.c").find(exp.Table))\n'a.b.c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The table name.

\n
\n", "signature": "(table) -> str:", "funcdef": "def"}, "sqlglot.expressions.replace_tables": {"fullname": "sqlglot.expressions.replace_tables", "modulename": "sqlglot.expressions", "qualname": "replace_tables", "kind": "function", "doc": "

Replace all tables in expression according to the mapping.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • mapping (Dict[str, str]): mapping of table names.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()\n'SELECT * FROM c'\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, mapping):", "funcdef": "def"}, "sqlglot.expressions.replace_placeholders": {"fullname": "sqlglot.expressions.replace_placeholders", "modulename": "sqlglot.expressions", "qualname": "replace_placeholders", "kind": "function", "doc": "

Replace placeholders in an expression.

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression node to be transformed and replaced.
  • \n
  • args: positional names that will substitute unnamed placeholders in the given order.
  • \n
  • kwargs: keyword arguments that will substitute named placeholders.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import exp, parse_one\n>>> replace_placeholders(\n...     parse_one("select * from :tbl where ? = ?"),\n...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")\n... ).sql()\n"SELECT * FROM foo WHERE str_col = 'b'"\n
\n
\n
\n\n
Returns:
\n\n
\n

The mapped expression.

\n
\n", "signature": "(expression, *args, **kwargs):", "funcdef": "def"}, "sqlglot.expressions.expand": {"fullname": "sqlglot.expressions.expand", "modulename": "sqlglot.expressions", "qualname": "expand", "kind": "function", "doc": "

Transforms an expression by expanding all referenced sources into subqueries.

\n\n
Examples:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()\n'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'\n
\n
\n \n
\n
>>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()\n'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: The expression to expand.
  • \n
  • sources: A dictionary of name to Subqueryables.
  • \n
  • copy: Whether or not to copy the expression during transformation. Defaults to True.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tsources: Dict[str, sqlglot.expressions.Subqueryable],\tcopy: bool = True) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.expressions.func": {"fullname": "sqlglot.expressions.func", "modulename": "sqlglot.expressions", "qualname": "func", "kind": "function", "doc": "

Returns a Func expression.

\n\n
Examples:
\n\n
\n
\n
>>> func("abs", 5).sql()\n'ABS(5)'\n
\n
\n \n
\n
>>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()\n'CAST(5 AS DOUBLE)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • name: the name of the function to build.
  • \n
  • args: the args used to instantiate the function of interest.
  • \n
  • dialect: the source dialect.
  • \n
  • kwargs: the kwargs used to instantiate the function of interest.
  • \n
\n\n
Note:
\n\n
\n

The arguments args and kwargs are mutually exclusive.

\n
\n\n
Returns:
\n\n
\n

An instance of the function of interest, or an anonymous function, if name doesn't\n correspond to an existing sqlglot.expressions.Func class.

\n
\n", "signature": "(\tname: str,\t*args,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\t**kwargs) -> sqlglot.expressions.Func:", "funcdef": "def"}, "sqlglot.expressions.true": {"fullname": "sqlglot.expressions.true", "modulename": "sqlglot.expressions", "qualname": "true", "kind": "function", "doc": "

Returns a true Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.false": {"fullname": "sqlglot.expressions.false", "modulename": "sqlglot.expressions", "qualname": "false", "kind": "function", "doc": "

Returns a false Boolean expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.expressions.null": {"fullname": "sqlglot.expressions.null", "modulename": "sqlglot.expressions", "qualname": "null", "kind": "function", "doc": "

Returns a Null expression.

\n", "signature": "():", "funcdef": "def"}, "sqlglot.generator": {"fullname": "sqlglot.generator", "modulename": "sqlglot.generator", "kind": "module", "doc": "

\n"}, "sqlglot.generator.Generator": {"fullname": "sqlglot.generator.Generator", "modulename": "sqlglot.generator", "qualname": "Generator", "kind": "class", "doc": "

Generator interprets the given syntax tree and produces a SQL string as an output.

\n\n
Arguments:
\n\n
    \n
  • time_mapping (dict): the dictionary of custom time mappings in which the key\nrepresents a python time format and the output the target time format
  • \n
  • time_trie (trie): a trie of the time_mapping keys
  • \n
  • pretty (bool): if set to True the returned string will be formatted. Default: False.
  • \n
  • quote_start (str): specifies which starting character to use to delimit quotes. Default: '.
  • \n
  • quote_end (str): specifies which ending character to use to delimit quotes. Default: '.
  • \n
  • identifier_start (str): specifies which starting character to use to delimit identifiers. Default: \".
  • \n
  • identifier_end (str): specifies which ending character to use to delimit identifiers. Default: \".
  • \n
  • identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always.
  • \n
  • normalize (bool): if set to True all identifiers will lower cased
  • \n
  • string_escape (str): specifies a string escape character. Default: '.
  • \n
  • identifier_escape (str): specifies an identifier escape character. Default: \".
  • \n
  • pad (int): determines padding in a formatted string. Default: 2.
  • \n
  • indent (int): determines the size of indentation in a formatted string. Default: 4.
  • \n
  • unnest_column_only (bool): if true unnest table aliases are considered only as column aliases
  • \n
  • normalize_functions (str): normalize function names, \"upper\", \"lower\", or None\nDefault: \"upper\"
  • \n
  • alias_post_tablesample (bool): if the table alias comes after tablesample\nDefault: False
  • \n
  • unsupported_level (ErrorLevel): determines the generator's behavior when it encounters\nunsupported expressions. Default ErrorLevel.WARN.
  • \n
  • null_ordering (str): Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
  • max_unsupported (int): Maximum number of unsupported messages to include in a raised UnsupportedError.\nThis is only relevant if unsupported_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • leading_comma (bool): if the the comma is leading or trailing in select statements\nDefault: False
  • \n
  • max_text_width: The max number of characters in a segment before creating new lines in pretty mode.\nThe default is on the smaller end because the length only represents a segment and not the true\nline length.\nDefault: 80
  • \n
  • comments: Whether or not to preserve comments in the output SQL code.\nDefault: True
  • \n
\n"}, "sqlglot.generator.Generator.__init__": {"fullname": "sqlglot.generator.Generator.__init__", "modulename": "sqlglot.generator", "qualname": "Generator.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttime_mapping=None,\ttime_trie=None,\tpretty=None,\tquote_start=None,\tquote_end=None,\tidentifier_start=None,\tidentifier_end=None,\tidentify=False,\tnormalize=False,\tstring_escape=None,\tidentifier_escape=None,\tpad=2,\tindent=2,\tindex_offset=0,\tunnest_column_only=False,\talias_post_tablesample=False,\tnormalize_functions='upper',\tunsupported_level=<ErrorLevel.WARN: 'WARN'>,\tnull_ordering=None,\tmax_unsupported=3,\tleading_comma=False,\tmax_text_width=80,\tcomments=True)"}, "sqlglot.generator.Generator.generate": {"fullname": "sqlglot.generator.Generator.generate", "modulename": "sqlglot.generator", "qualname": "Generator.generate", "kind": "function", "doc": "

Generates a SQL string by interpreting the given syntax tree.

\n\n

Args\n expression: the syntax tree.\n cache: an optional sql string cache. this leverages the hash of an expression which is slow, so only use this if you set _hash on each node.

\n\n

Returns\n the SQL string.

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression],\tcache: Optional[Dict[int, str]] = None) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.unsupported": {"fullname": "sqlglot.generator.Generator.unsupported", "modulename": "sqlglot.generator", "qualname": "Generator.unsupported", "kind": "function", "doc": "

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\n", "signature": "(self, expression: sqlglot.expressions.CurrentDate) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.collate_sql": {"fullname": "sqlglot.generator.Generator.collate_sql", "modulename": "sqlglot.generator", "qualname": "Generator.collate_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Collate) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.command_sql": {"fullname": "sqlglot.generator.Generator.command_sql", "modulename": "sqlglot.generator", "qualname": "Generator.command_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Command) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.comment_sql": {"fullname": "sqlglot.generator.Generator.comment_sql", "modulename": "sqlglot.generator", "qualname": "Generator.comment_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Comment) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.transaction_sql": {"fullname": "sqlglot.generator.Generator.transaction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.transaction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Transaction) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.commit_sql": {"fullname": "sqlglot.generator.Generator.commit_sql", "modulename": "sqlglot.generator", "qualname": "Generator.commit_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Commit) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.rollback_sql": {"fullname": "sqlglot.generator.Generator.rollback_sql", "modulename": "sqlglot.generator", "qualname": "Generator.rollback_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Rollback) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.altercolumn_sql": {"fullname": "sqlglot.generator.Generator.altercolumn_sql", "modulename": "sqlglot.generator", "qualname": "Generator.altercolumn_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AlterColumn) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.renametable_sql": {"fullname": "sqlglot.generator.Generator.renametable_sql", "modulename": "sqlglot.generator", "qualname": "Generator.renametable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RenameTable) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.altertable_sql": {"fullname": "sqlglot.generator.Generator.altertable_sql", "modulename": "sqlglot.generator", "qualname": "Generator.altertable_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AlterTable) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.droppartition_sql": {"fullname": "sqlglot.generator.Generator.droppartition_sql", "modulename": "sqlglot.generator", "qualname": "Generator.droppartition_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DropPartition) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.addconstraint_sql": {"fullname": "sqlglot.generator.Generator.addconstraint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.addconstraint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.AddConstraint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.distinct_sql": {"fullname": "sqlglot.generator.Generator.distinct_sql", "modulename": "sqlglot.generator", "qualname": "Generator.distinct_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Distinct) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ignorenulls_sql": {"fullname": "sqlglot.generator.Generator.ignorenulls_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ignorenulls_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.IgnoreNulls) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.respectnulls_sql": {"fullname": "sqlglot.generator.Generator.respectnulls_sql", "modulename": "sqlglot.generator", "qualname": "Generator.respectnulls_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.RespectNulls) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.intdiv_sql": {"fullname": "sqlglot.generator.Generator.intdiv_sql", "modulename": "sqlglot.generator", "qualname": "Generator.intdiv_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.IntDiv) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.dpipe_sql": {"fullname": "sqlglot.generator.Generator.dpipe_sql", "modulename": "sqlglot.generator", "qualname": "Generator.dpipe_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.DPipe) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.div_sql": {"fullname": "sqlglot.generator.Generator.div_sql", "modulename": "sqlglot.generator", "qualname": "Generator.div_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Div) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.overlaps_sql": {"fullname": "sqlglot.generator.Generator.overlaps_sql", "modulename": "sqlglot.generator", "qualname": "Generator.overlaps_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Overlaps) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.distance_sql": {"fullname": "sqlglot.generator.Generator.distance_sql", "modulename": "sqlglot.generator", "qualname": "Generator.distance_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Distance) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.dot_sql": {"fullname": "sqlglot.generator.Generator.dot_sql", "modulename": "sqlglot.generator", "qualname": "Generator.dot_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Dot) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.eq_sql": {"fullname": "sqlglot.generator.Generator.eq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.eq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.EQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.escape_sql": {"fullname": "sqlglot.generator.Generator.escape_sql", "modulename": "sqlglot.generator", "qualname": "Generator.escape_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Escape) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.glob_sql": {"fullname": "sqlglot.generator.Generator.glob_sql", "modulename": "sqlglot.generator", "qualname": "Generator.glob_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Glob) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gt_sql": {"fullname": "sqlglot.generator.Generator.gt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.gte_sql": {"fullname": "sqlglot.generator.Generator.gte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.gte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.GTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ilike_sql": {"fullname": "sqlglot.generator.Generator.ilike_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ilike_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILike) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.ilikeany_sql": {"fullname": "sqlglot.generator.Generator.ilikeany_sql", "modulename": "sqlglot.generator", "qualname": "Generator.ilikeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ILikeAny) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.is_sql": {"fullname": "sqlglot.generator.Generator.is_sql", "modulename": "sqlglot.generator", "qualname": "Generator.is_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Is) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.like_sql": {"fullname": "sqlglot.generator.Generator.like_sql", "modulename": "sqlglot.generator", "qualname": "Generator.like_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Like) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.likeany_sql": {"fullname": "sqlglot.generator.Generator.likeany_sql", "modulename": "sqlglot.generator", "qualname": "Generator.likeany_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LikeAny) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.similarto_sql": {"fullname": "sqlglot.generator.Generator.similarto_sql", "modulename": "sqlglot.generator", "qualname": "Generator.similarto_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.SimilarTo) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lt_sql": {"fullname": "sqlglot.generator.Generator.lt_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lt_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LT) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.lte_sql": {"fullname": "sqlglot.generator.Generator.lte_sql", "modulename": "sqlglot.generator", "qualname": "Generator.lte_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.LTE) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mod_sql": {"fullname": "sqlglot.generator.Generator.mod_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mod_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mod) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.mul_sql": {"fullname": "sqlglot.generator.Generator.mul_sql", "modulename": "sqlglot.generator", "qualname": "Generator.mul_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Mul) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.neq_sql": {"fullname": "sqlglot.generator.Generator.neq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.neq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeeq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeeq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeeq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.nullsafeneq_sql": {"fullname": "sqlglot.generator.Generator.nullsafeneq_sql", "modulename": "sqlglot.generator", "qualname": "Generator.nullsafeneq_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.NullSafeNEQ) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.or_sql": {"fullname": "sqlglot.generator.Generator.or_sql", "modulename": "sqlglot.generator", "qualname": "Generator.or_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Or) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.slice_sql": {"fullname": "sqlglot.generator.Generator.slice_sql", "modulename": "sqlglot.generator", "qualname": "Generator.slice_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Slice) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.sub_sql": {"fullname": "sqlglot.generator.Generator.sub_sql", "modulename": "sqlglot.generator", "qualname": "Generator.sub_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Sub) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.trycast_sql": {"fullname": "sqlglot.generator.Generator.trycast_sql", "modulename": "sqlglot.generator", "qualname": "Generator.trycast_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.TryCast) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.use_sql": {"fullname": "sqlglot.generator.Generator.use_sql", "modulename": "sqlglot.generator", "qualname": "Generator.use_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Use) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.binary": {"fullname": "sqlglot.generator.Generator.binary", "modulename": "sqlglot.generator", "qualname": "Generator.binary", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Binary, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.function_fallback_sql": {"fullname": "sqlglot.generator.Generator.function_fallback_sql", "modulename": "sqlglot.generator", "qualname": "Generator.function_fallback_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Func) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.func": {"fullname": "sqlglot.generator.Generator.func", "modulename": "sqlglot.generator", "qualname": "Generator.func", "kind": "function", "doc": "

\n", "signature": "(\tself,\tname: str,\t*args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.format_args": {"fullname": "sqlglot.generator.Generator.format_args", "modulename": "sqlglot.generator", "qualname": "Generator.format_args", "kind": "function", "doc": "

\n", "signature": "(self, *args: Union[str, sqlglot.expressions.Expression, NoneType]) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.text_width": {"fullname": "sqlglot.generator.Generator.text_width", "modulename": "sqlglot.generator", "qualname": "Generator.text_width", "kind": "function", "doc": "

\n", "signature": "(self, args: Iterable) -> int:", "funcdef": "def"}, "sqlglot.generator.Generator.format_time": {"fullname": "sqlglot.generator.Generator.format_time", "modulename": "sqlglot.generator", "qualname": "Generator.format_time", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression) -> Optional[str]:", "funcdef": "def"}, "sqlglot.generator.Generator.expressions": {"fullname": "sqlglot.generator.Generator.expressions", "modulename": "sqlglot.generator", "qualname": "Generator.expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\texpression: Optional[sqlglot.expressions.Expression] = None,\tkey: Optional[str] = None,\tsqls: Optional[List[str]] = None,\tflat: bool = False,\tindent: bool = True,\tsep: str = ', ',\tprefix: str = '') -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.op_expressions": {"fullname": "sqlglot.generator.Generator.op_expressions", "modulename": "sqlglot.generator", "qualname": "Generator.op_expressions", "kind": "function", "doc": "

\n", "signature": "(\tself,\top: str,\texpression: sqlglot.expressions.Expression,\tflat: bool = False) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.naked_property": {"fullname": "sqlglot.generator.Generator.naked_property", "modulename": "sqlglot.generator", "qualname": "Generator.naked_property", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Property) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.set_operation": {"fullname": "sqlglot.generator.Generator.set_operation", "modulename": "sqlglot.generator", "qualname": "Generator.set_operation", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Expression, op: str) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tag_sql": {"fullname": "sqlglot.generator.Generator.tag_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tag_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Tag) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.token_sql": {"fullname": "sqlglot.generator.Generator.token_sql", "modulename": "sqlglot.generator", "qualname": "Generator.token_sql", "kind": "function", "doc": "

\n", "signature": "(self, token_type: sqlglot.tokens.TokenType) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.userdefinedfunction_sql": {"fullname": "sqlglot.generator.Generator.userdefinedfunction_sql", "modulename": "sqlglot.generator", "qualname": "Generator.userdefinedfunction_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.UserDefinedFunction) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.joinhint_sql": {"fullname": "sqlglot.generator.Generator.joinhint_sql", "modulename": "sqlglot.generator", "qualname": "Generator.joinhint_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.JoinHint) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.kwarg_sql": {"fullname": "sqlglot.generator.Generator.kwarg_sql", "modulename": "sqlglot.generator", "qualname": "Generator.kwarg_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Kwarg) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.when_sql": {"fullname": "sqlglot.generator.Generator.when_sql", "modulename": "sqlglot.generator", "qualname": "Generator.when_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.When) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.merge_sql": {"fullname": "sqlglot.generator.Generator.merge_sql", "modulename": "sqlglot.generator", "qualname": "Generator.merge_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.Merge) -> str:", "funcdef": "def"}, "sqlglot.generator.Generator.tochar_sql": {"fullname": "sqlglot.generator.Generator.tochar_sql", "modulename": "sqlglot.generator", "qualname": "Generator.tochar_sql", "kind": "function", "doc": "

\n", "signature": "(self, expression: sqlglot.expressions.ToChar) -> str:", "funcdef": "def"}, "sqlglot.helper": {"fullname": "sqlglot.helper", "modulename": "sqlglot.helper", "kind": "module", "doc": "

\n"}, "sqlglot.helper.AutoName": {"fullname": "sqlglot.helper.AutoName", "modulename": "sqlglot.helper", "qualname": "AutoName", "kind": "class", "doc": "

This is used for creating enum classes where auto() is the string form of the corresponding value's name.

\n", "bases": "enum.Enum"}, "sqlglot.helper.seq_get": {"fullname": "sqlglot.helper.seq_get", "modulename": "sqlglot.helper", "qualname": "seq_get", "kind": "function", "doc": "

Returns the value in seq at position index, or None if index is out of bounds.

\n", "signature": "(seq: Sequence[~T], index: int) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.helper.ensure_list": {"fullname": "sqlglot.helper.ensure_list", "modulename": "sqlglot.helper", "qualname": "ensure_list", "kind": "function", "doc": "

Ensures that a value is a list, otherwise casts or wraps it into one.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value cast as a list if it's a list or a tuple, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.ensure_collection": {"fullname": "sqlglot.helper.ensure_collection", "modulename": "sqlglot.helper", "qualname": "ensure_collection", "kind": "function", "doc": "

Ensures that a value is a collection (excluding str and bytes), otherwise wraps it into a list.

\n\n
Arguments:
\n\n
    \n
  • value: the value of interest.
  • \n
\n\n
Returns:
\n\n
\n

The value if it's a collection, or else the value wrapped in a list.

\n
\n", "signature": "(value):", "funcdef": "def"}, "sqlglot.helper.csv": {"fullname": "sqlglot.helper.csv", "modulename": "sqlglot.helper", "qualname": "csv", "kind": "function", "doc": "

Formats any number of string arguments as CSV.

\n\n
Arguments:
\n\n
    \n
  • args: the string arguments to format.
  • \n
  • sep: the argument separator.
  • \n
\n\n
Returns:
\n\n
\n

The arguments formatted as a CSV string.

\n
\n", "signature": "(*args, sep: str = ', ') -> str:", "funcdef": "def"}, "sqlglot.helper.subclasses": {"fullname": "sqlglot.helper.subclasses", "modulename": "sqlglot.helper", "qualname": "subclasses", "kind": "function", "doc": "

Returns all subclasses for a collection of classes, possibly excluding some of them.

\n\n
Arguments:
\n\n
    \n
  • module_name: the name of the module to search for subclasses in.
  • \n
  • classes: class(es) we want to find the subclasses of.
  • \n
  • exclude: class(es) we want to exclude from the returned list.
  • \n
\n\n
Returns:
\n\n
\n

The target subclasses.

\n
\n", "signature": "(\tmodule_name: str,\tclasses: Union[Type, Tuple[Type, ...]],\texclude: Union[Type, Tuple[Type, ...]] = ()) -> List[Type]:", "funcdef": "def"}, "sqlglot.helper.apply_index_offset": {"fullname": "sqlglot.helper.apply_index_offset", "modulename": "sqlglot.helper", "qualname": "apply_index_offset", "kind": "function", "doc": "

Applies an offset to a given integer literal expression.

\n\n
Arguments:
\n\n
    \n
  • this: the target of the index
  • \n
  • expressions: the expression the offset will be applied to, wrapped in a list.
  • \n
  • offset: the offset that will be applied.
  • \n
\n\n
Returns:
\n\n
\n

The original expression with the offset applied to it, wrapped in a list. If the provided\n expressions argument contains more than one expressions, it's returned unaffected.

\n
\n", "signature": "(\tthis: sqlglot.expressions.Expression,\texpressions: List[Optional[~E]],\toffset: int) -> List[Optional[~E]]:", "funcdef": "def"}, "sqlglot.helper.camel_to_snake_case": {"fullname": "sqlglot.helper.camel_to_snake_case", "modulename": "sqlglot.helper", "qualname": "camel_to_snake_case", "kind": "function", "doc": "

Converts name from camelCase to snake_case and returns the result.

\n", "signature": "(name: str) -> str:", "funcdef": "def"}, "sqlglot.helper.while_changing": {"fullname": "sqlglot.helper.while_changing", "modulename": "sqlglot.helper", "qualname": "while_changing", "kind": "function", "doc": "

Applies a transformation to a given expression until a fix point is reached.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to be transformed.
  • \n
  • func: the transformation to be applied.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tfunc: Callable[[sqlglot.expressions.Expression], ~E]) -> ~E:", "funcdef": "def"}, "sqlglot.helper.tsort": {"fullname": "sqlglot.helper.tsort", "modulename": "sqlglot.helper", "qualname": "tsort", "kind": "function", "doc": "

Sorts a given directed acyclic graph in topological order.

\n\n
Arguments:
\n\n
    \n
  • dag: the graph to be sorted.
  • \n
\n\n
Returns:
\n\n
\n

A list that contains all of the graph's nodes in topological order.

\n
\n", "signature": "(dag: Dict[~T, List[~T]]) -> List[~T]:", "funcdef": "def"}, "sqlglot.helper.open_file": {"fullname": "sqlglot.helper.open_file", "modulename": "sqlglot.helper", "qualname": "open_file", "kind": "function", "doc": "

Open a file that may be compressed as gzip and return it in universal newline mode.

\n", "signature": "(file_name: str) -> <class 'TextIO'>:", "funcdef": "def"}, "sqlglot.helper.csv_reader": {"fullname": "sqlglot.helper.csv_reader", "modulename": "sqlglot.helper", "qualname": "csv_reader", "kind": "function", "doc": "

Returns a csv reader given the expression READ_CSV(name, ['delimiter', '|', ...]).

\n\n
Arguments:
\n\n
    \n
  • read_csv: a ReadCSV function call
  • \n
\n\n
Yields:
\n\n
\n

A python csv reader.

\n
\n", "signature": "(read_csv: sqlglot.expressions.ReadCSV) -> Any:", "funcdef": "def"}, "sqlglot.helper.find_new_name": {"fullname": "sqlglot.helper.find_new_name", "modulename": "sqlglot.helper", "qualname": "find_new_name", "kind": "function", "doc": "

Searches for a new name.

\n\n
Arguments:
\n\n
    \n
  • taken: a collection of taken names.
  • \n
  • base: base name to alter.
  • \n
\n\n
Returns:
\n\n
\n

The new, available name.

\n
\n", "signature": "(taken: Collection[str], base: str) -> str:", "funcdef": "def"}, "sqlglot.helper.object_to_dict": {"fullname": "sqlglot.helper.object_to_dict", "modulename": "sqlglot.helper", "qualname": "object_to_dict", "kind": "function", "doc": "

Returns a dictionary created from an object's attributes.

\n", "signature": "(obj: Any, **kwargs) -> Dict:", "funcdef": "def"}, "sqlglot.helper.split_num_words": {"fullname": "sqlglot.helper.split_num_words", "modulename": "sqlglot.helper", "qualname": "split_num_words", "kind": "function", "doc": "

Perform a split on a value and return N words as a result with None used for words that don't exist.

\n\n
Arguments:
\n\n
    \n
  • value: the value to be split.
  • \n
  • sep: the value to use to split on.
  • \n
  • min_num_words: the minimum number of words that are going to be in the result.
  • \n
  • fill_from_start: indicates that if None values should be inserted at the start or end of the list.
  • \n
\n\n
Examples:
\n\n
\n
\n
>>> split_num_words("db.table", ".", 3)\n[None, 'db', 'table']\n>>> split_num_words("db.table", ".", 3, fill_from_start=False)\n['db', 'table', None]\n>>> split_num_words("db.table", ".", 1)\n['db', 'table']\n
\n
\n
\n\n
Returns:
\n\n
\n

The list of words returned by split, possibly augmented by a number of None values.

\n
\n", "signature": "(\tvalue: str,\tsep: str,\tmin_num_words: int,\tfill_from_start: bool = True) -> List[Optional[str]]:", "funcdef": "def"}, "sqlglot.helper.is_iterable": {"fullname": "sqlglot.helper.is_iterable", "modulename": "sqlglot.helper", "qualname": "is_iterable", "kind": "function", "doc": "

Checks if the value is an iterable, excluding the types str and bytes.

\n\n
Examples:
\n\n
\n
\n
>>> is_iterable([1,2])\nTrue\n>>> is_iterable("test")\nFalse\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • value: the value to check if it is an iterable.
  • \n
\n\n
Returns:
\n\n
\n

A bool value indicating if it is an iterable.

\n
\n", "signature": "(value: Any) -> bool:", "funcdef": "def"}, "sqlglot.helper.flatten": {"fullname": "sqlglot.helper.flatten", "modulename": "sqlglot.helper", "qualname": "flatten", "kind": "function", "doc": "

Flattens an iterable that can contain both iterable and non-iterable elements. Objects of\ntype str and bytes are not regarded as iterables.

\n\n
Examples:
\n\n
\n
\n
>>> list(flatten([[1, 2], 3, {4}, (5, "bla")]))\n[1, 2, 3, 4, 5, 'bla']\n>>> list(flatten([1, 2, 3]))\n[1, 2, 3]\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • values: the value to be flattened.
  • \n
\n\n
Yields:
\n\n
\n

Non-iterable elements in values.

\n
\n", "signature": "(values: Iterable[Union[Iterable[Any], Any]]) -> Iterator[Any]:", "funcdef": "def"}, "sqlglot.helper.count_params": {"fullname": "sqlglot.helper.count_params", "modulename": "sqlglot.helper", "qualname": "count_params", "kind": "function", "doc": "

Returns the number of formal parameters expected by a function, without counting \"self\"\nand \"cls\", in case of instance and class methods, respectively.

\n", "signature": "(function: Callable) -> int:", "funcdef": "def"}, "sqlglot.helper.dict_depth": {"fullname": "sqlglot.helper.dict_depth", "modulename": "sqlglot.helper", "qualname": "dict_depth", "kind": "function", "doc": "

Get the nesting depth of a dictionary.

\n\n
For example:
\n\n
\n
\n
>>> dict_depth(None)\n0\n>>> dict_depth({})\n1\n>>> dict_depth({"a": "b"})\n1\n>>> dict_depth({"a": {}})\n2\n>>> dict_depth({"a": {"b": {}}})\n3\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • d (dict): dictionary
  • \n
\n\n
Returns:
\n\n
\n

int: depth

\n
\n", "signature": "(d: Dict) -> int:", "funcdef": "def"}, "sqlglot.helper.first": {"fullname": "sqlglot.helper.first", "modulename": "sqlglot.helper", "qualname": "first", "kind": "function", "doc": "

Returns the first element from an iterable.

\n\n

Useful for sets.

\n", "signature": "(it: Iterable[~T]) -> ~T:", "funcdef": "def"}, "sqlglot.helper.should_identify": {"fullname": "sqlglot.helper.should_identify", "modulename": "sqlglot.helper", "qualname": "should_identify", "kind": "function", "doc": "

Checks if text should be identified given an identify option.

\n\n
Arguments:
\n\n
    \n
  • text: the text to check.
  • \n
  • identify: \"always\" | True - always returns true, \"safe\" - true if no upper case
  • \n
\n\n
Returns:
\n\n
\n

Whether or not a string should be identified.

\n
\n", "signature": "(text: str, identify: str | bool) -> bool:", "funcdef": "def"}, "sqlglot.lineage": {"fullname": "sqlglot.lineage", "modulename": "sqlglot.lineage", "kind": "module", "doc": "

\n"}, "sqlglot.lineage.Node": {"fullname": "sqlglot.lineage.Node", "modulename": "sqlglot.lineage", "qualname": "Node", "kind": "class", "doc": "

\n"}, "sqlglot.lineage.Node.__init__": {"fullname": "sqlglot.lineage.Node.__init__", "modulename": "sqlglot.lineage", "qualname": "Node.__init__", "kind": "function", "doc": "

\n", "signature": "(\tname: str,\texpression: sqlglot.expressions.Expression,\tsource: sqlglot.expressions.Expression,\tdownstream: List[sqlglot.lineage.Node] = <factory>,\talias: str = '')"}, "sqlglot.lineage.Node.walk": {"fullname": "sqlglot.lineage.Node.walk", "modulename": "sqlglot.lineage", "qualname": "Node.walk", "kind": "function", "doc": "

\n", "signature": "(self) -> Iterator[sqlglot.lineage.Node]:", "funcdef": "def"}, "sqlglot.lineage.Node.to_html": {"fullname": "sqlglot.lineage.Node.to_html", "modulename": "sqlglot.lineage", "qualname": "Node.to_html", "kind": "function", "doc": "

\n", "signature": "(self, **opts) -> sqlglot.lineage.LineageHTML:", "funcdef": "def"}, "sqlglot.lineage.lineage": {"fullname": "sqlglot.lineage.lineage", "modulename": "sqlglot.lineage", "qualname": "lineage", "kind": "function", "doc": "

Build the lineage graph for a column of a SQL query.

\n\n
Arguments:
\n\n
    \n
  • column: The column to build the lineage for.
  • \n
  • sql: The SQL string or expression.
  • \n
  • schema: The schema of tables.
  • \n
  • sources: A mapping of queries which will be used to continue building lineage.
  • \n
  • rules: Optimizer rules to apply, by default only qualifying tables and columns.
  • \n
  • dialect: The dialect of input SQL.
  • \n
\n\n
Returns:
\n\n
\n

A lineage node.

\n
\n", "signature": "(\tcolumn: str | sqlglot.expressions.Column,\tsql: str | sqlglot.expressions.Expression,\tschema: Union[Dict, sqlglot.schema.Schema, NoneType] = None,\tsources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None,\trules: Sequence[Callable] = (<function qualify_tables at 0x7fc498defd00>, <function qualify_columns at 0x7fc498deeb90>, <function expand_laterals at 0x7fc498deef80>),\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node:", "funcdef": "def"}, "sqlglot.lineage.LineageHTML": {"fullname": "sqlglot.lineage.LineageHTML", "modulename": "sqlglot.lineage", "qualname": "LineageHTML", "kind": "class", "doc": "

Node to HTML generator using vis.js.

\n\n

https://visjs.github.io/vis-network/docs/network/

\n"}, "sqlglot.lineage.LineageHTML.__init__": {"fullname": "sqlglot.lineage.LineageHTML.__init__", "modulename": "sqlglot.lineage", "qualname": "LineageHTML.__init__", "kind": "function", "doc": "

\n", "signature": "(\tnode: sqlglot.lineage.Node,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\timports: bool = True,\t**opts: Any)"}, "sqlglot.optimizer": {"fullname": "sqlglot.optimizer", "modulename": "sqlglot.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.annotate_types": {"fullname": "sqlglot.optimizer.annotate_types.annotate_types", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "annotate_types", "kind": "function", "doc": "

Recursively infer & annotate types in an expression syntax tree against a schema.\nAssumes that we've already executed the optimizer's qualify_columns step.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"y": {"cola": "SMALLINT"}}\n>>> sql = "SELECT x.cola + 2.5 AS cola FROM (SELECT y.cola AS cola FROM y AS y) AS x"\n>>> annotated_expr = annotate_types(sqlglot.parse_one(sql), schema=schema)\n>>> annotated_expr.expressions[0].type.this  # Get the type of "x.cola + 2.5 AS cola"\n<Type.DOUBLE: 'DOUBLE'>\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): Expression to annotate.
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema.
  • \n
  • annotators (dict): Maps expression type to corresponding annotation function.
  • \n
  • coerces_to (dict): Maps expression type to set of types that it can be coerced into.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression annotated with types

\n
\n", "signature": "(expression, schema=None, annotators=None, coerces_to=None):", "funcdef": "def"}, "sqlglot.optimizer.annotate_types.TypeAnnotator": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator", "kind": "class", "doc": "

\n"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.__init__", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.__init__", "kind": "function", "doc": "

\n", "signature": "(schema=None, annotators=None, coerces_to=None)"}, "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate": {"fullname": "sqlglot.optimizer.annotate_types.TypeAnnotator.annotate", "modulename": "sqlglot.optimizer.annotate_types", "qualname": "TypeAnnotator.annotate", "kind": "function", "doc": "

\n", "signature": "(self, expression):", "funcdef": "def"}, "sqlglot.optimizer.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.canonicalize.canonicalize": {"fullname": "sqlglot.optimizer.canonicalize.canonicalize", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "canonicalize", "kind": "function", "doc": "

Converts a sql expression into a standard form.

\n\n

This method relies on annotate_types because many of the\nconversions rely on type inference.

\n\n
Arguments:
\n\n
    \n
  • expression: The expression to canonicalize.
  • \n
  • identify: Whether or not to force identify identifier.
  • \n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tidentify: str = 'safe') -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.add_text_to_concat": {"fullname": "sqlglot.optimizer.canonicalize.add_text_to_concat", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "add_text_to_concat", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.coerce_type": {"fullname": "sqlglot.optimizer.canonicalize.coerce_type", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "coerce_type", "kind": "function", "doc": "

\n", "signature": "(node: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.remove_redundant_casts": {"fullname": "sqlglot.optimizer.canonicalize.remove_redundant_casts", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "remove_redundant_casts", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.canonicalize.ensure_bool_predicates": {"fullname": "sqlglot.optimizer.canonicalize.ensure_bool_predicates", "modulename": "sqlglot.optimizer.canonicalize", "qualname": "ensure_bool_predicates", "kind": "function", "doc": "

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_ctes.eliminate_ctes": {"fullname": "sqlglot.optimizer.eliminate_ctes.eliminate_ctes", "modulename": "sqlglot.optimizer.eliminate_ctes", "qualname": "eliminate_ctes", "kind": "function", "doc": "

Remove unused CTEs from an expression.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "WITH y AS (SELECT a FROM x) SELECT a FROM z"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_ctes(expression).sql()\n'SELECT a FROM z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_joins.eliminate_joins": {"fullname": "sqlglot.optimizer.eliminate_joins.eliminate_joins", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "eliminate_joins", "kind": "function", "doc": "

Remove unused joins from an expression.

\n\n

This only removes joins when we know that the join condition doesn't produce duplicate rows.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a FROM x LEFT JOIN (SELECT DISTINCT y.b FROM y) AS y ON x.b = y.b"\n>>> expression = sqlglot.parse_one(sql)\n>>> eliminate_joins(expression).sql()\n'SELECT x.a FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_joins.join_condition": {"fullname": "sqlglot.optimizer.eliminate_joins.join_condition", "modulename": "sqlglot.optimizer.eliminate_joins", "qualname": "join_condition", "kind": "function", "doc": "

Extract the join condition from a join expression.

\n\n
Arguments:
\n\n
    \n
  • join (exp.Join)
  • \n
\n\n
Returns:
\n\n
\n

tuple[list[str], list[str], exp.Expression]:\n Tuple of (source key, join key, remaining predicate)

\n
\n", "signature": "(join):", "funcdef": "def"}, "sqlglot.optimizer.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries": {"fullname": "sqlglot.optimizer.eliminate_subqueries.eliminate_subqueries", "modulename": "sqlglot.optimizer.eliminate_subqueries", "qualname": "eliminate_subqueries", "kind": "function", "doc": "

Rewrite derived tables as CTES, deduplicating if possible.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y'\n
\n
\n
\n\n
This also deduplicates common subqueries:
\n\n
\n
\n
>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT * FROM x) AS y JOIN (SELECT * FROM x) AS z")\n>>> eliminate_subqueries(expression).sql()\n'WITH y AS (SELECT * FROM x) SELECT a FROM y AS y JOIN y AS z'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_laterals.expand_laterals": {"fullname": "sqlglot.optimizer.expand_laterals.expand_laterals", "modulename": "sqlglot.optimizer.expand_laterals", "qualname": "expand_laterals", "kind": "function", "doc": "

Expand lateral column alias references.

\n\n

This assumes qualify_columns as already run.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT x.a + 1 AS b, b + 1 AS c FROM x"\n>>> expression = sqlglot.parse_one(sql)\n>>> expand_laterals(expression).sql()\n'SELECT x.a + 1 AS b, x.a + 1 + 1 AS c FROM x'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

optimized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects": {"fullname": "sqlglot.optimizer.expand_multi_table_selects.expand_multi_table_selects", "modulename": "sqlglot.optimizer.expand_multi_table_selects", "qualname": "expand_multi_table_selects", "kind": "function", "doc": "

Replace multiple FROM expressions with JOINs.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> expand_multi_table_selects(parse_one("SELECT * FROM x, y")).sql()\n'SELECT * FROM x CROSS JOIN y'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.isolate_table_selects.isolate_table_selects": {"fullname": "sqlglot.optimizer.isolate_table_selects.isolate_table_selects", "modulename": "sqlglot.optimizer.isolate_table_selects", "qualname": "isolate_table_selects", "kind": "function", "doc": "

\n", "signature": "(expression, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.lower_identities.lower_identities": {"fullname": "sqlglot.optimizer.lower_identities.lower_identities", "modulename": "sqlglot.optimizer.lower_identities", "qualname": "lower_identities", "kind": "function", "doc": "

Convert all unquoted identifiers to lower case.

\n\n

Assuming the schema is all lower case, this essentially makes identifiers case-insensitive.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one('SELECT Bar.A AS A FROM "Foo".Bar')\n>>> lower_identities(expression).sql()\n'SELECT bar.a AS A FROM "Foo".bar'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to quote
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: quoted expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.merge_subqueries.merge_subqueries": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_subqueries", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to merge derived tables into the outer query.

\n\n

This also merges CTEs if they are selected from only once.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT x.a FROM x) JOIN y")\n>>> merge_subqueries(expression).sql()\n'SELECT x.a FROM x JOIN y'\n
\n
\n
\n\n

If leave_tables_isolated is True, this will not merge inner queries into outer\nqueries if it would result in multiple table selects in a single query:

\n\n
\n
\n
\n

expression = sqlglot.parse_one(\"SELECT a FROM (SELECT x.a FROM x) JOIN y\")\n merge_subqueries(expression, leave_tables_isolated=True).sql()\n 'SELECT a FROM (SELECT x.a FROM x) JOIN y'

\n
\n
\n
\n\n

Inspired by https://dev.mysql.com/doc/refman/8.0/en/derived-table-optimization.html

\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • leave_tables_isolated (bool):
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_ctes": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_ctes", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_ctes", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.merge_subqueries.merge_derived_tables": {"fullname": "sqlglot.optimizer.merge_subqueries.merge_derived_tables", "modulename": "sqlglot.optimizer.merge_subqueries", "qualname": "merge_derived_tables", "kind": "function", "doc": "

\n", "signature": "(expression, leave_tables_isolated=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize": {"fullname": "sqlglot.optimizer.normalize", "modulename": "sqlglot.optimizer.normalize", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.normalize.normalize": {"fullname": "sqlglot.optimizer.normalize.normalize", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalize", "kind": "function", "doc": "

Rewrite sqlglot AST into conjunctive normal form or disjunctive normal form.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(x AND y) OR z")\n>>> normalize(expression, dnf=False).sql()\n'(x OR z) AND (y OR z)'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: expression to normalize
  • \n
  • dnf: rewrite in disjunctive normal form instead.
  • \n
  • max_distance (int): the maximal estimated distance from cnf/dnf to attempt conversion
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: normalized expression

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression,\tdnf: bool = False,\tmax_distance: int = 128):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalized": {"fullname": "sqlglot.optimizer.normalize.normalized", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalized", "kind": "function", "doc": "

\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.normalization_distance": {"fullname": "sqlglot.optimizer.normalize.normalization_distance", "modulename": "sqlglot.optimizer.normalize", "qualname": "normalization_distance", "kind": "function", "doc": "

The difference in the number of predicates between the current expression and the normalized form.

\n\n

This is used as an estimate of the cost of the conversion which is exponential in complexity.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("(a AND b) OR (c AND d)")\n>>> normalization_distance(expression)\n4\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to compute distance
  • \n
  • dnf (bool): compute to dnf distance instead
  • \n
\n\n
Returns:
\n\n
\n

int: difference

\n
\n", "signature": "(expression, dnf=False):", "funcdef": "def"}, "sqlglot.optimizer.normalize.distributive_law": {"fullname": "sqlglot.optimizer.normalize.distributive_law", "modulename": "sqlglot.optimizer.normalize", "qualname": "distributive_law", "kind": "function", "doc": "

x OR (y AND z) -> (x OR y) AND (x OR z)\n(x AND y) OR (y AND z) -> (x OR y) AND (x OR z) AND (y OR y) AND (y OR z)

\n", "signature": "(expression, dnf, max_distance, cache=None):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimize_joins.optimize_joins": {"fullname": "sqlglot.optimizer.optimize_joins.optimize_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "optimize_joins", "kind": "function", "doc": "

Removes cross joins if possible and reorder joins based on predicate dependencies.

\n\n
Example:
\n\n
\n
\n
>>> from sqlglot import parse_one\n>>> optimize_joins(parse_one("SELECT * FROM x CROSS JOIN y JOIN z ON x.a = z.a AND y.a = z.a")).sql()\n'SELECT * FROM x JOIN z ON x.a = z.a AND TRUE JOIN y ON y.a = z.a'\n
\n
\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.reorder_joins": {"fullname": "sqlglot.optimizer.optimize_joins.reorder_joins", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "reorder_joins", "kind": "function", "doc": "

Reorder joins by topological sort order based on predicate references.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.normalize": {"fullname": "sqlglot.optimizer.optimize_joins.normalize", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "normalize", "kind": "function", "doc": "

Remove INNER and OUTER from joins as they are optional.

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.optimize_joins.other_table_names": {"fullname": "sqlglot.optimizer.optimize_joins.other_table_names", "modulename": "sqlglot.optimizer.optimize_joins", "qualname": "other_table_names", "kind": "function", "doc": "

\n", "signature": "(join, exclude):", "funcdef": "def"}, "sqlglot.optimizer.optimizer": {"fullname": "sqlglot.optimizer.optimizer", "modulename": "sqlglot.optimizer.optimizer", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.optimizer.optimize": {"fullname": "sqlglot.optimizer.optimizer.optimize", "modulename": "sqlglot.optimizer.optimizer", "qualname": "optimize", "kind": "function", "doc": "

Rewrite a sqlglot AST into an optimized form.

\n\n
Arguments:
\n\n
    \n
  • expression: expression to optimize
  • \n
  • schema: database schema.\nThis can either be an instance of sqlglot.optimizer.Schema or a mapping in one of\nthe following forms:\n 1. {table: {col: type}}\n 2. {db: {table: {col: type}}}\n 3. {catalog: {db: {table: {col: type}}}}\nIf no schema is provided then the default schema defined at sqlgot.schema will be used
  • \n
  • db: specify the default database, as might be set by a USE DATABASE db statement
  • \n
  • catalog: specify the default catalog, as might be set by a USE CATALOG c statement
  • \n
  • dialect: The dialect to parse the sql string.
  • \n
  • rules: sequence of optimizer rules to use.\nMany of the rules require tables and columns to be qualified.\nDo not remove qualify_tables or qualify_columns from the sequence of rules unless you know\nwhat you're doing!
  • \n
  • *kwargs: If a rule has a keyword argument with a same name in *kwargs, it will be passed in.
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(\texpression: str | sqlglot.expressions.Expression,\tschema: Union[dict, sqlglot.schema.Schema, NoneType] = None,\tdb: Optional[str] = None,\tcatalog: Optional[str] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None,\trules: Sequence[Callable] = (<function lower_identities at 0x7fc498ded5a0>, <function qualify_tables at 0x7fc498defd00>, <function isolate_table_selects at 0x7fc498ded480>, <function qualify_columns at 0x7fc498deeb90>, <function pushdown_projections at 0x7fc498def6d0>, <function validate_qualify_columns at 0x7fc498def010>, <function normalize at 0x7fc498dc71c0>, <function unnest_subqueries at 0x7fc498defe20>, <function expand_multi_table_selects at 0x7fc498ded3f0>, <function pushdown_predicates at 0x7fc498dee710>, <function optimize_joins at 0x7fc498dee320>, <function eliminate_subqueries at 0x7fc498ded000>, <function merge_subqueries at 0x7fc498ded870>, <function eliminate_joins at 0x7fc498dc6f80>, <function eliminate_ctes at 0x7fc498dc6e60>, <function annotate_types at 0x7fc498d935b0>, <function canonicalize at 0x7fc498dc68c0>, <function simplify at 0x7fc498dc7370>),\t**kwargs):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_predicates.pushdown_predicates": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_predicates", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_predicates", "kind": "function", "doc": "

Rewrite sqlglot AST to pushdown predicates in FROMS and JOINS

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT * FROM (SELECT * FROM x AS x) AS y WHERE y.a = 1"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_predicates(expression).sql()\n'SELECT * FROM (SELECT * FROM x AS x WHERE y.a = 1) AS y WHERE TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown", "kind": "function", "doc": "

\n", "signature": "(condition, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_cnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_cnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_cnf", "kind": "function", "doc": "

If the predicates are in CNF like form, we can simply replace each block in the parent.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.pushdown_dnf": {"fullname": "sqlglot.optimizer.pushdown_predicates.pushdown_dnf", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "pushdown_dnf", "kind": "function", "doc": "

If the predicates are in DNF form, we can only push down conditions that are in all blocks.\nAdditionally, we can't remove predicates from their original form.

\n", "signature": "(predicates, scope, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate": {"fullname": "sqlglot.optimizer.pushdown_predicates.nodes_for_predicate", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "nodes_for_predicate", "kind": "function", "doc": "

\n", "signature": "(predicate, sources, scope_ref_count):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_predicates.replace_aliases": {"fullname": "sqlglot.optimizer.pushdown_predicates.replace_aliases", "modulename": "sqlglot.optimizer.pushdown_predicates", "qualname": "replace_aliases", "kind": "function", "doc": "

\n", "signature": "(source, predicate):", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION": {"fullname": "sqlglot.optimizer.pushdown_projections.DEFAULT_SELECTION", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "DEFAULT_SELECTION", "kind": "function", "doc": "

\n", "signature": "():", "funcdef": "def"}, "sqlglot.optimizer.pushdown_projections.pushdown_projections": {"fullname": "sqlglot.optimizer.pushdown_projections.pushdown_projections", "modulename": "sqlglot.optimizer.pushdown_projections", "qualname": "pushdown_projections", "kind": "function", "doc": "

Rewrite sqlglot AST to remove unused columns projections.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sql = "SELECT y.a AS a FROM (SELECT x.a AS a, x.b AS b FROM x) AS y"\n>>> expression = sqlglot.parse_one(sql)\n>>> pushdown_projections(expression).sql()\n'SELECT y.a AS a FROM (SELECT x.a AS a FROM x) AS y'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to optimize
  • \n
  • remove_unused_selections (bool): remove selects that are unused
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: optimized expression

\n
\n", "signature": "(expression, schema=None, remove_unused_selections=True):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_columns.qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "qualify_columns", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified columns.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> schema = {"tbl": {"col": "INT"}}\n>>> expression = sqlglot.parse_one("SELECT col FROM tbl")\n>>> qualify_columns(expression, schema).sql()\n'SELECT tbl.col AS col FROM tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • schema (dict|sqlglot.optimizer.Schema): Database schema
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, schema, expand_laterals=True):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.validate_qualify_columns": {"fullname": "sqlglot.optimizer.qualify_columns.validate_qualify_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "validate_qualify_columns", "kind": "function", "doc": "

Raise an OptimizeError if any columns aren't qualified

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver", "kind": "class", "doc": "

Helper for resolving columns.

\n\n

This is a class so we can lazily load some things and easily share them across functions.

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.__init__": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.__init__", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.__init__", "kind": "function", "doc": "

\n", "signature": "(scope, schema)"}, "sqlglot.optimizer.qualify_columns.Resolver.get_table": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_table", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_table", "kind": "function", "doc": "

Get the table for a column name.

\n\n
Arguments:
\n\n
    \n
  • column_name: The column name to find the table for.
  • \n
\n\n
Returns:
\n\n
\n

The table name if it can be found/inferred.

\n
\n", "signature": "(self, column_name: str) -> Optional[sqlglot.expressions.Identifier]:", "funcdef": "def"}, "sqlglot.optimizer.qualify_columns.Resolver.all_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.all_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.all_columns", "kind": "variable", "doc": "

All available columns of all sources in this scope

\n"}, "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns": {"fullname": "sqlglot.optimizer.qualify_columns.Resolver.get_source_columns", "modulename": "sqlglot.optimizer.qualify_columns", "qualname": "Resolver.get_source_columns", "kind": "function", "doc": "

Resolve the source columns for a given source name

\n", "signature": "(self, name, only_visible=False):", "funcdef": "def"}, "sqlglot.optimizer.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.qualify_tables.qualify_tables": {"fullname": "sqlglot.optimizer.qualify_tables.qualify_tables", "modulename": "sqlglot.optimizer.qualify_tables", "qualname": "qualify_tables", "kind": "function", "doc": "

Rewrite sqlglot AST to have fully qualified tables.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT 1 FROM tbl")\n>>> qualify_tables(expression, db="db").sql()\n'SELECT 1 FROM db.tbl AS tbl'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to qualify
  • \n
  • db (str): Database name
  • \n
  • catalog (str): Catalog name
  • \n
  • schema: A schema to populate
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: qualified expression

\n
\n", "signature": "(expression, db=None, catalog=None, schema=None):", "funcdef": "def"}, "sqlglot.optimizer.scope": {"fullname": "sqlglot.optimizer.scope", "modulename": "sqlglot.optimizer.scope", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.scope.ScopeType": {"fullname": "sqlglot.optimizer.scope.ScopeType", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "enum.Enum"}, "sqlglot.optimizer.scope.ScopeType.ROOT": {"fullname": "sqlglot.optimizer.scope.ScopeType.ROOT", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.ROOT", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.ROOT: 1>"}, "sqlglot.optimizer.scope.ScopeType.SUBQUERY": {"fullname": "sqlglot.optimizer.scope.ScopeType.SUBQUERY", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.SUBQUERY", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.SUBQUERY: 2>"}, "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE": {"fullname": "sqlglot.optimizer.scope.ScopeType.DERIVED_TABLE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.DERIVED_TABLE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.DERIVED_TABLE: 3>"}, "sqlglot.optimizer.scope.ScopeType.CTE": {"fullname": "sqlglot.optimizer.scope.ScopeType.CTE", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.CTE", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.CTE: 4>"}, "sqlglot.optimizer.scope.ScopeType.UNION": {"fullname": "sqlglot.optimizer.scope.ScopeType.UNION", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UNION: 5>"}, "sqlglot.optimizer.scope.ScopeType.UDTF": {"fullname": "sqlglot.optimizer.scope.ScopeType.UDTF", "modulename": "sqlglot.optimizer.scope", "qualname": "ScopeType.UDTF", "kind": "variable", "doc": "

\n", "default_value": "<ScopeType.UDTF: 6>"}, "sqlglot.optimizer.scope.Scope": {"fullname": "sqlglot.optimizer.scope.Scope", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope", "kind": "class", "doc": "

Selection scope.

\n\n
Attributes:
\n\n
    \n
  • expression (exp.Select|exp.Union): Root expression of this scope
  • \n
  • sources (dict[str, exp.Table|Scope]): Mapping of source name to either\na Table expression or another Scope instance. For example:\n SELECT * FROM x {\"x\": Table(this=\"x\")}\n SELECT * FROM x AS y {\"y\": Table(this=\"x\")}\n SELECT * FROM (SELECT ...) AS y {\"y\": Scope(...)}
  • \n
  • lateral_sources (dict[str, exp.Table|Scope]): Sources from laterals\nFor example:\n SELECT c FROM x LATERAL VIEW EXPLODE (a) AS c;\nThe LATERAL VIEW EXPLODE gets x as a source.
  • \n
  • outer_column_list (list[str]): If this is a derived table or CTE, and the outer query\ndefines a column list of it's alias of this scope, this is that list of columns.\nFor example:\n SELECT * FROM (SELECT ...) AS y(col1, col2)\nThe inner query would have [\"col1\", \"col2\"] for its outer_column_list
  • \n
  • parent (Scope): Parent scope
  • \n
  • scope_type (ScopeType): Type of this scope, relative to it's parent
  • \n
  • subquery_scopes (list[Scope]): List of all child scopes for subqueries
  • \n
  • cte_scopes (list[Scope]): List of all child scopes for CTEs
  • \n
  • derived_table_scopes (list[Scope]): List of all child scopes for derived_tables
  • \n
  • udtf_scopes (list[Scope]): List of all child scopes for user defined tabular functions
  • \n
  • table_scopes (list[Scope]): derived_table_scopes + udtf_scopes, in the order that they're defined
  • \n
  • union_scopes (list[Scope, Scope]): If this Scope is for a Union expression, this will be\na list of the left and right child scopes.
  • \n
\n"}, "sqlglot.optimizer.scope.Scope.__init__": {"fullname": "sqlglot.optimizer.scope.Scope.__init__", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.__init__", "kind": "function", "doc": "

\n", "signature": "(\texpression,\tsources=None,\touter_column_list=None,\tparent=None,\tscope_type=<ScopeType.ROOT: 1>,\tlateral_sources=None)"}, "sqlglot.optimizer.scope.Scope.clear_cache": {"fullname": "sqlglot.optimizer.scope.Scope.clear_cache", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.clear_cache", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.branch": {"fullname": "sqlglot.optimizer.scope.Scope.branch", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.branch", "kind": "function", "doc": "

Branch from the current scope to a new, inner scope

\n", "signature": "(self, expression, scope_type, chain_sources=None, **kwargs):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.walk": {"fullname": "sqlglot.optimizer.scope.Scope.walk", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.walk", "kind": "function", "doc": "

\n", "signature": "(self, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find": {"fullname": "sqlglot.optimizer.scope.Scope.find", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find", "kind": "function", "doc": "

Returns the first node in this scope which matches at least one of the specified types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Returns:
\n\n
\n

exp.Expression: the node which matches the criteria or None if no node matching\n the criteria was found.

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.find_all": {"fullname": "sqlglot.optimizer.scope.Scope.find_all", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.find_all", "kind": "function", "doc": "

Returns a generator object which visits all nodes in this scope and only yields those that\nmatch at least one of the specified expression types.

\n\n

This does NOT traverse into subscopes.

\n\n
Arguments:
\n\n
    \n
  • expression_types (type): the expression type(s) to match.
  • \n
  • bfs (bool): True to use breadth-first search, False to use depth-first.
  • \n
\n\n
Yields:
\n\n
\n

exp.Expression: nodes

\n
\n", "signature": "(self, *expression_types, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.replace": {"fullname": "sqlglot.optimizer.scope.Scope.replace", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.replace", "kind": "function", "doc": "

Replace old with new.

\n\n

This can be used instead of exp.Expression.replace to ensure the Scope is kept up-to-date.

\n\n
Arguments:
\n\n
    \n
  • old (exp.Expression): old node
  • \n
  • new (exp.Expression): new node
  • \n
\n", "signature": "(self, old, new):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.tables": {"fullname": "sqlglot.optimizer.scope.Scope.tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.tables", "kind": "variable", "doc": "

List of tables in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Table]: tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.ctes": {"fullname": "sqlglot.optimizer.scope.Scope.ctes", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ctes", "kind": "variable", "doc": "

List of CTEs in this scope.

\n\n
Returns:
\n\n
\n

list[exp.CTE]: ctes

\n
\n"}, "sqlglot.optimizer.scope.Scope.derived_tables": {"fullname": "sqlglot.optimizer.scope.Scope.derived_tables", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.derived_tables", "kind": "variable", "doc": "

List of derived tables in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM (SELECT ...) <- that's a derived table

\n
\n\n
Returns:
\n\n
\n

list[exp.Subquery]: derived tables

\n
\n"}, "sqlglot.optimizer.scope.Scope.udtfs": {"fullname": "sqlglot.optimizer.scope.Scope.udtfs", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.udtfs", "kind": "variable", "doc": "

List of \"User Defined Tabular Functions\" in this scope.

\n\n
Returns:
\n\n
\n

list[exp.UDTF]: UDTFs

\n
\n"}, "sqlglot.optimizer.scope.Scope.subqueries": {"fullname": "sqlglot.optimizer.scope.Scope.subqueries", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.subqueries", "kind": "variable", "doc": "

List of subqueries in this scope.

\n\n
For example:
\n\n
\n

SELECT * FROM x WHERE a IN (SELECT ...) <- that's a subquery

\n
\n\n
Returns:
\n\n
\n

list[exp.Subqueryable]: subqueries

\n
\n"}, "sqlglot.optimizer.scope.Scope.columns": {"fullname": "sqlglot.optimizer.scope.Scope.columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.columns", "kind": "variable", "doc": "

List of columns in this scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances in this scope, plus any\n Columns that reference this scope from correlated subqueries.

\n
\n"}, "sqlglot.optimizer.scope.Scope.selected_sources": {"fullname": "sqlglot.optimizer.scope.Scope.selected_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selected_sources", "kind": "variable", "doc": "

Mapping of nodes and sources that are actually selected from in this scope.

\n\n

That is, all tables in a schema are selectable at any point. But a\ntable only becomes a selected source if it's included in a FROM or JOIN clause.

\n\n
Returns:
\n\n
\n

dict[str, (exp.Table|exp.Select, exp.Table|Scope)]: selected sources and nodes

\n
\n"}, "sqlglot.optimizer.scope.Scope.cte_sources": {"fullname": "sqlglot.optimizer.scope.Scope.cte_sources", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.cte_sources", "kind": "variable", "doc": "

Sources that are CTEs.

\n\n
Returns:
\n\n
\n

dict[str, Scope]: Mapping of source alias to Scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.selects": {"fullname": "sqlglot.optimizer.scope.Scope.selects", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.selects", "kind": "variable", "doc": "

Select expressions of this scope.

\n\n

For example, for the following expression:\n SELECT 1 as a, 2 as b FROM x

\n\n

The outputs are the \"1 as a\" and \"2 as b\" expressions.

\n\n
Returns:
\n\n
\n

list[exp.Expression]: expressions

\n
\n"}, "sqlglot.optimizer.scope.Scope.external_columns": {"fullname": "sqlglot.optimizer.scope.Scope.external_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.external_columns", "kind": "variable", "doc": "

Columns that appear to reference sources in outer scopes.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that don't reference\n sources in the current scope.

\n
\n"}, "sqlglot.optimizer.scope.Scope.unqualified_columns": {"fullname": "sqlglot.optimizer.scope.Scope.unqualified_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.unqualified_columns", "kind": "variable", "doc": "

Unqualified columns in the current scope.

\n\n
Returns:
\n\n
\n

list[exp.Column]: Unqualified columns

\n
\n"}, "sqlglot.optimizer.scope.Scope.join_hints": {"fullname": "sqlglot.optimizer.scope.Scope.join_hints", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.join_hints", "kind": "variable", "doc": "

Hints that exist in the scope that reference tables

\n\n
Returns:
\n\n
\n

list[exp.JoinHint]: Join hints that are referenced within the scope

\n
\n"}, "sqlglot.optimizer.scope.Scope.source_columns": {"fullname": "sqlglot.optimizer.scope.Scope.source_columns", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.source_columns", "kind": "function", "doc": "

Get all columns in the current scope for a particular source.

\n\n
Arguments:
\n\n
    \n
  • source_name (str): Name of the source
  • \n
\n\n
Returns:
\n\n
\n

list[exp.Column]: Column instances that reference source_name

\n
\n", "signature": "(self, source_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.is_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_subquery", "kind": "variable", "doc": "

Determine if this scope is a subquery

\n"}, "sqlglot.optimizer.scope.Scope.is_derived_table": {"fullname": "sqlglot.optimizer.scope.Scope.is_derived_table", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_derived_table", "kind": "variable", "doc": "

Determine if this scope is a derived table

\n"}, "sqlglot.optimizer.scope.Scope.is_union": {"fullname": "sqlglot.optimizer.scope.Scope.is_union", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_union", "kind": "variable", "doc": "

Determine if this scope is a union

\n"}, "sqlglot.optimizer.scope.Scope.is_cte": {"fullname": "sqlglot.optimizer.scope.Scope.is_cte", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_cte", "kind": "variable", "doc": "

Determine if this scope is a common table expression

\n"}, "sqlglot.optimizer.scope.Scope.is_root": {"fullname": "sqlglot.optimizer.scope.Scope.is_root", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_root", "kind": "variable", "doc": "

Determine if this is the root scope

\n"}, "sqlglot.optimizer.scope.Scope.is_udtf": {"fullname": "sqlglot.optimizer.scope.Scope.is_udtf", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_udtf", "kind": "variable", "doc": "

Determine if this scope is a UDTF (User Defined Table Function)

\n"}, "sqlglot.optimizer.scope.Scope.is_correlated_subquery": {"fullname": "sqlglot.optimizer.scope.Scope.is_correlated_subquery", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.is_correlated_subquery", "kind": "variable", "doc": "

Determine if this scope is a correlated subquery

\n"}, "sqlglot.optimizer.scope.Scope.rename_source": {"fullname": "sqlglot.optimizer.scope.Scope.rename_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.rename_source", "kind": "function", "doc": "

Rename a source in this scope

\n", "signature": "(self, old_name, new_name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.add_source": {"fullname": "sqlglot.optimizer.scope.Scope.add_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.add_source", "kind": "function", "doc": "

Add a source to this scope

\n", "signature": "(self, name, source):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.remove_source": {"fullname": "sqlglot.optimizer.scope.Scope.remove_source", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.remove_source", "kind": "function", "doc": "

Remove a source from this scope

\n", "signature": "(self, name):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.traverse": {"fullname": "sqlglot.optimizer.scope.Scope.traverse", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.traverse", "kind": "function", "doc": "

Traverse the scope tree from this node.

\n\n
Yields:
\n\n
\n

Scope: scope instances in depth-first-search post-order

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.Scope.ref_count": {"fullname": "sqlglot.optimizer.scope.Scope.ref_count", "modulename": "sqlglot.optimizer.scope", "qualname": "Scope.ref_count", "kind": "function", "doc": "

Count the number of times each scope in this tree is referenced.

\n\n
Returns:
\n\n
\n

dict[int, int]: Mapping of Scope instance ID to reference count

\n
\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.optimizer.scope.traverse_scope": {"fullname": "sqlglot.optimizer.scope.traverse_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "traverse_scope", "kind": "function", "doc": "

Traverse an expression by it's \"scopes\".

\n\n

\"Scope\" represents the current context of a Select statement.

\n\n

This is helpful for optimizing queries, where we need more information than\nthe expression tree itself. For example, we might care about the source\nnames within a subquery. Returns a list because a generator could result in\nincomplete properties which is confusing.

\n\n
Examples:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT a FROM (SELECT a FROM x) AS y")\n>>> scopes = traverse_scope(expression)\n>>> scopes[0].expression.sql(), list(scopes[0].sources)\n('SELECT a FROM x', ['x'])\n>>> scopes[1].expression.sql(), list(scopes[1].sources)\n('SELECT a FROM (SELECT a FROM x) AS y', ['y'])\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to traverse
  • \n
\n\n
Returns:
\n\n
\n

list[Scope]: scope instances

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.build_scope": {"fullname": "sqlglot.optimizer.scope.build_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "build_scope", "kind": "function", "doc": "

Build a scope tree.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression): expression to build the scope tree for
  • \n
\n\n
Returns:
\n\n
\n

Scope: root scope

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.scope.walk_in_scope": {"fullname": "sqlglot.optimizer.scope.walk_in_scope", "modulename": "sqlglot.optimizer.scope", "qualname": "walk_in_scope", "kind": "function", "doc": "

Returns a generator object which visits all nodes in the syntrax tree, stopping at\nnodes that start child scopes.

\n\n
Arguments:
\n\n
    \n
  • expression (exp.Expression):
  • \n
  • bfs (bool): if set to True the BFS traversal order will be applied,\notherwise the DFS traversal will be used instead.
  • \n
\n\n
Yields:
\n\n
\n

tuple[exp.Expression, Optional[exp.Expression], str]: node, parent, arg key

\n
\n", "signature": "(expression, bfs=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify": {"fullname": "sqlglot.optimizer.simplify", "modulename": "sqlglot.optimizer.simplify", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.simplify.simplify": {"fullname": "sqlglot.optimizer.simplify.simplify", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify", "kind": "function", "doc": "

Rewrite sqlglot AST to simplify expressions.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("TRUE AND TRUE")\n>>> simplify(expression).sql()\n'TRUE'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to simplify
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: simplified expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.rewrite_between": {"fullname": "sqlglot.optimizer.simplify.rewrite_between", "modulename": "sqlglot.optimizer.simplify", "qualname": "rewrite_between", "kind": "function", "doc": "

Rewrite x between y and z to x >= y AND x <= z.

\n\n

This is done because comparison simplification is only done on lt/lte/gt/gte.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_not": {"fullname": "sqlglot.optimizer.simplify.simplify_not", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_not", "kind": "function", "doc": "

Demorgan's Law\nNOT (x OR y) -> NOT x AND NOT y\nNOT (x AND y) -> NOT x OR NOT y

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.flatten": {"fullname": "sqlglot.optimizer.simplify.flatten", "modulename": "sqlglot.optimizer.simplify", "qualname": "flatten", "kind": "function", "doc": "

A AND (B AND C) -> A AND B AND C\nA OR (B OR C) -> A OR B OR C

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_connectors": {"fullname": "sqlglot.optimizer.simplify.simplify_connectors", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_connectors", "kind": "function", "doc": "

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_compliments": {"fullname": "sqlglot.optimizer.simplify.remove_compliments", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_compliments", "kind": "function", "doc": "

Removing compliments.

\n\n

A AND NOT A -> FALSE\nA OR NOT A -> TRUE

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.uniq_sort": {"fullname": "sqlglot.optimizer.simplify.uniq_sort", "modulename": "sqlglot.optimizer.simplify", "qualname": "uniq_sort", "kind": "function", "doc": "

Uniq and sort a connector.

\n\n

C AND A AND B AND B -> A AND B AND C

\n", "signature": "(expression, cache=None, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.absorb_and_eliminate": {"fullname": "sqlglot.optimizer.simplify.absorb_and_eliminate", "modulename": "sqlglot.optimizer.simplify", "qualname": "absorb_and_eliminate", "kind": "function", "doc": "

absorption:\n A AND (A OR B) -> A\n A OR (A AND B) -> A\n A AND (NOT A OR B) -> A AND B\n A OR (NOT A AND B) -> A OR B\nelimination:\n (A AND B) OR (A AND NOT B) -> A\n (A OR B) AND (A OR NOT B) -> A

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_literals": {"fullname": "sqlglot.optimizer.simplify.simplify_literals", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_literals", "kind": "function", "doc": "

\n", "signature": "(expression, root=True):", "funcdef": "def"}, "sqlglot.optimizer.simplify.simplify_parens": {"fullname": "sqlglot.optimizer.simplify.simplify_parens", "modulename": "sqlglot.optimizer.simplify", "qualname": "simplify_parens", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.remove_where_true": {"fullname": "sqlglot.optimizer.simplify.remove_where_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "remove_where_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.always_true": {"fullname": "sqlglot.optimizer.simplify.always_true", "modulename": "sqlglot.optimizer.simplify", "qualname": "always_true", "kind": "function", "doc": "

\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_complement": {"fullname": "sqlglot.optimizer.simplify.is_complement", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_complement", "kind": "function", "doc": "

\n", "signature": "(a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_false": {"fullname": "sqlglot.optimizer.simplify.is_false", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_false", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.is_null": {"fullname": "sqlglot.optimizer.simplify.is_null", "modulename": "sqlglot.optimizer.simplify", "qualname": "is_null", "kind": "function", "doc": "

\n", "signature": "(a: sqlglot.expressions.Expression) -> bool:", "funcdef": "def"}, "sqlglot.optimizer.simplify.eval_boolean": {"fullname": "sqlglot.optimizer.simplify.eval_boolean", "modulename": "sqlglot.optimizer.simplify", "qualname": "eval_boolean", "kind": "function", "doc": "

\n", "signature": "(expression, a, b):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_date": {"fullname": "sqlglot.optimizer.simplify.extract_date", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_date", "kind": "function", "doc": "

\n", "signature": "(cast):", "funcdef": "def"}, "sqlglot.optimizer.simplify.extract_interval": {"fullname": "sqlglot.optimizer.simplify.extract_interval", "modulename": "sqlglot.optimizer.simplify", "qualname": "extract_interval", "kind": "function", "doc": "

\n", "signature": "(interval):", "funcdef": "def"}, "sqlglot.optimizer.simplify.date_literal": {"fullname": "sqlglot.optimizer.simplify.date_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "date_literal", "kind": "function", "doc": "

\n", "signature": "(date):", "funcdef": "def"}, "sqlglot.optimizer.simplify.boolean_literal": {"fullname": "sqlglot.optimizer.simplify.boolean_literal", "modulename": "sqlglot.optimizer.simplify", "qualname": "boolean_literal", "kind": "function", "doc": "

\n", "signature": "(condition):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "kind": "module", "doc": "

\n"}, "sqlglot.optimizer.unnest_subqueries.unnest_subqueries": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest_subqueries", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest_subqueries", "kind": "function", "doc": "

Rewrite sqlglot AST to convert some predicates with subqueries into joins.

\n\n

Convert scalar subqueries into cross joins.\nConvert correlated or vectorized subqueries into a group by so it is not a many to many left join.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> expression = sqlglot.parse_one("SELECT * FROM x AS x WHERE (SELECT y.a AS a FROM y AS y WHERE x.a = y.a) = 1 ")\n>>> unnest_subqueries(expression).sql()\n'SELECT * FROM x AS x LEFT JOIN (SELECT y.a AS a FROM y AS y WHERE TRUE GROUP BY y.a) AS _u_0 ON x.a = _u_0.a WHERE _u_0.a = 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression (sqlglot.Expression): expression to unnest
  • \n
\n\n
Returns:
\n\n
\n

sqlglot.Expression: unnested expression

\n
\n", "signature": "(expression):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.unnest": {"fullname": "sqlglot.optimizer.unnest_subqueries.unnest", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "unnest", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, sequence):", "funcdef": "def"}, "sqlglot.optimizer.unnest_subqueries.decorrelate": {"fullname": "sqlglot.optimizer.unnest_subqueries.decorrelate", "modulename": "sqlglot.optimizer.unnest_subqueries", "qualname": "decorrelate", "kind": "function", "doc": "

\n", "signature": "(select, parent_select, external_columns, sequence):", "funcdef": "def"}, "sqlglot.parser": {"fullname": "sqlglot.parser", "modulename": "sqlglot.parser", "kind": "module", "doc": "

\n"}, "sqlglot.parser.parse_var_map": {"fullname": "sqlglot.parser.parse_var_map", "modulename": "sqlglot.parser", "qualname": "parse_var_map", "kind": "function", "doc": "

\n", "signature": "(args: Sequence) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.parser.parse_like": {"fullname": "sqlglot.parser.parse_like", "modulename": "sqlglot.parser", "qualname": "parse_like", "kind": "function", "doc": "

\n", "signature": "(args):", "funcdef": "def"}, "sqlglot.parser.binary_range_parser": {"fullname": "sqlglot.parser.binary_range_parser", "modulename": "sqlglot.parser", "qualname": "binary_range_parser", "kind": "function", "doc": "

\n", "signature": "(\texpr_type: Type[sqlglot.expressions.Expression]) -> Callable[[sqlglot.parser.Parser, Optional[sqlglot.expressions.Expression]], Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser": {"fullname": "sqlglot.parser.Parser", "modulename": "sqlglot.parser", "qualname": "Parser", "kind": "class", "doc": "

Parser consumes a list of tokens produced by the sqlglot.tokens.Tokenizer and produces\na parsed syntax tree.

\n\n
Arguments:
\n\n
    \n
  • error_level: the desired error level.\nDefault: ErrorLevel.RAISE
  • \n
  • error_message_context: determines the amount of context to capture from a\nquery string when displaying the error message (in number of characters).\nDefault: 50.
  • \n
  • index_offset: Index offset for arrays eg ARRAY[0] vs ARRAY[1] as the head of a list.\nDefault: 0
  • \n
  • alias_post_tablesample: If the table alias comes after tablesample.\nDefault: False
  • \n
  • max_errors: Maximum number of error messages to include in a raised ParseError.\nThis is only relevant if error_level is ErrorLevel.RAISE.\nDefault: 3
  • \n
  • null_ordering: Indicates the default null ordering method to use if not explicitly set.\nOptions are \"nulls_are_small\", \"nulls_are_large\", \"nulls_are_last\".\nDefault: \"nulls_are_small\"
  • \n
\n"}, "sqlglot.parser.Parser.__init__": {"fullname": "sqlglot.parser.Parser.__init__", "modulename": "sqlglot.parser", "qualname": "Parser.__init__", "kind": "function", "doc": "

\n", "signature": "(\terror_level: Optional[sqlglot.errors.ErrorLevel] = None,\terror_message_context: int = 100,\tindex_offset: int = 0,\tunnest_column_only: bool = False,\talias_post_tablesample: bool = False,\tmax_errors: int = 3,\tnull_ordering: Optional[str] = None)"}, "sqlglot.parser.Parser.reset": {"fullname": "sqlglot.parser.Parser.reset", "modulename": "sqlglot.parser", "qualname": "Parser.reset", "kind": "function", "doc": "

\n", "signature": "(self):", "funcdef": "def"}, "sqlglot.parser.Parser.parse": {"fullname": "sqlglot.parser.Parser.parse", "modulename": "sqlglot.parser", "qualname": "Parser.parse", "kind": "function", "doc": "

Parses a list of tokens and returns a list of syntax trees, one tree\nper parsed SQL statement.

\n\n
Arguments:
\n\n
    \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The list of syntax trees.

\n
\n", "signature": "(\tself,\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.parse_into": {"fullname": "sqlglot.parser.Parser.parse_into", "modulename": "sqlglot.parser", "qualname": "Parser.parse_into", "kind": "function", "doc": "

Parses a list of tokens into a given Expression type. If a collection of Expression\ntypes is given instead, this method will try to parse the token list into each one\nof them, stopping at the first for which the parsing succeeds.

\n\n
Arguments:
\n\n
    \n
  • expression_types: the expression type(s) to try and parse the token list into.
  • \n
  • raw_tokens: the list of tokens.
  • \n
  • sql: the original SQL string, used to produce helpful debug messages.
  • \n
\n\n
Returns:
\n\n
\n

The target Expression.

\n
\n", "signature": "(\tself,\texpression_types: Union[str, Type[sqlglot.expressions.Expression], Collection[Union[str, Type[sqlglot.expressions.Expression]]]],\traw_tokens: List[sqlglot.tokens.Token],\tsql: Optional[str] = None) -> List[Optional[sqlglot.expressions.Expression]]:", "funcdef": "def"}, "sqlglot.parser.Parser.check_errors": {"fullname": "sqlglot.parser.Parser.check_errors", "modulename": "sqlglot.parser", "qualname": "Parser.check_errors", "kind": "function", "doc": "

Logs or raises any found errors, depending on the chosen error level setting.

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.raise_error": {"fullname": "sqlglot.parser.Parser.raise_error", "modulename": "sqlglot.parser", "qualname": "Parser.raise_error", "kind": "function", "doc": "

Appends an error in the list of recorded errors or raises it, depending on the chosen\nerror level setting.

\n", "signature": "(self, message: str, token: Optional[sqlglot.tokens.Token] = None) -> None:", "funcdef": "def"}, "sqlglot.parser.Parser.expression": {"fullname": "sqlglot.parser.Parser.expression", "modulename": "sqlglot.parser", "qualname": "Parser.expression", "kind": "function", "doc": "

Creates a new, validated Expression.

\n\n
Arguments:
\n\n
    \n
  • exp_class: the expression class to instantiate.
  • \n
  • comments: an optional list of comments to attach to the expression.
  • \n
  • kwargs: the arguments to set for the expression along with their respective values.
  • \n
\n\n
Returns:
\n\n
\n

The target expression.

\n
\n", "signature": "(\tself,\texp_class: Type[~E],\tcomments: Optional[List[str]] = None,\t**kwargs) -> ~E:", "funcdef": "def"}, "sqlglot.parser.Parser.validate_expression": {"fullname": "sqlglot.parser.Parser.validate_expression", "modulename": "sqlglot.parser", "qualname": "Parser.validate_expression", "kind": "function", "doc": "

Validates an already instantiated expression, making sure that all its mandatory arguments\nare set.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression to validate.
  • \n
  • args: an optional list of items that was used to instantiate the expression, if it's a Func.
  • \n
\n", "signature": "(\tself,\texpression: sqlglot.expressions.Expression,\targs: Optional[List] = None) -> None:", "funcdef": "def"}, "sqlglot.planner": {"fullname": "sqlglot.planner", "modulename": "sqlglot.planner", "kind": "module", "doc": "

\n"}, "sqlglot.planner.Plan": {"fullname": "sqlglot.planner.Plan", "modulename": "sqlglot.planner", "qualname": "Plan", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Plan.__init__": {"fullname": "sqlglot.planner.Plan.__init__", "modulename": "sqlglot.planner", "qualname": "Plan.__init__", "kind": "function", "doc": "

\n", "signature": "(expression: sqlglot.expressions.Expression)"}, "sqlglot.planner.Step": {"fullname": "sqlglot.planner.Step", "modulename": "sqlglot.planner", "qualname": "Step", "kind": "class", "doc": "

\n"}, "sqlglot.planner.Step.from_expression": {"fullname": "sqlglot.planner.Step.from_expression", "modulename": "sqlglot.planner", "qualname": "Step.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Step.add_dependency": {"fullname": "sqlglot.planner.Step.add_dependency", "modulename": "sqlglot.planner", "qualname": "Step.add_dependency", "kind": "function", "doc": "

\n", "signature": "(self, dependency: sqlglot.planner.Step) -> None:", "funcdef": "def"}, "sqlglot.planner.Step.to_s": {"fullname": "sqlglot.planner.Step.to_s", "modulename": "sqlglot.planner", "qualname": "Step.to_s", "kind": "function", "doc": "

\n", "signature": "(self, level: int = 0) -> str:", "funcdef": "def"}, "sqlglot.planner.Scan": {"fullname": "sqlglot.planner.Scan", "modulename": "sqlglot.planner", "qualname": "Scan", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Scan.from_expression": {"fullname": "sqlglot.planner.Scan.from_expression", "modulename": "sqlglot.planner", "qualname": "Scan.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Join": {"fullname": "sqlglot.planner.Join", "modulename": "sqlglot.planner", "qualname": "Join", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Join.from_joins": {"fullname": "sqlglot.planner.Join.from_joins", "modulename": "sqlglot.planner", "qualname": "Join.from_joins", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tjoins: Iterable[sqlglot.expressions.Join],\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.planner.Aggregate": {"fullname": "sqlglot.planner.Aggregate", "modulename": "sqlglot.planner", "qualname": "Aggregate", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.Sort": {"fullname": "sqlglot.planner.Sort", "modulename": "sqlglot.planner", "qualname": "Sort", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation": {"fullname": "sqlglot.planner.SetOperation", "modulename": "sqlglot.planner", "qualname": "SetOperation", "kind": "class", "doc": "

\n", "bases": "Step"}, "sqlglot.planner.SetOperation.__init__": {"fullname": "sqlglot.planner.SetOperation.__init__", "modulename": "sqlglot.planner", "qualname": "SetOperation.__init__", "kind": "function", "doc": "

\n", "signature": "(\top: Type[sqlglot.expressions.Expression],\tleft: str | None,\tright: str | None,\tdistinct: bool = False)"}, "sqlglot.planner.SetOperation.from_expression": {"fullname": "sqlglot.planner.SetOperation.from_expression", "modulename": "sqlglot.planner", "qualname": "SetOperation.from_expression", "kind": "function", "doc": "

Builds a DAG of Steps from a SQL expression so that it's easier to execute in an engine.\nNote: the expression's tables and subqueries must be aliased for this method to work. For\nexample, given the following expression:

\n\n

SELECT\n x.a,\n SUM(x.b)\nFROM x AS x\nJOIN y AS y\n ON x.a = y.a\nGROUP BY x.a

\n\n

the following DAG is produced (the expression IDs might differ per execution):

\n\n
    \n
  • Aggregate: x (4347984624)\nContext:\n Aggregations:\n - SUM(x.b)\n Group:\n - x.a\nProjections:\n
      \n
    • x.a
    • \n
    • \"x\".\"\"\nDependencies:\n
        \n
      • Join: x (4347985296)\nContext:\ny:\nOn: x.a = y.a\nProjections:\nDependencies:
      • \n
    • \n
    • Scan: x (4347983136)\nContext:\n Source: x AS x\nProjections:
    • \n
    • Scan: y (4343416624)\nContext:\n Source: y AS y\nProjections:
    • \n
  • \n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression to build the DAG from.
  • \n
  • ctes: a dictionary that maps CTEs to their corresponding Step DAG by name.
  • \n
\n\n
Returns:
\n\n
\n

A Step DAG corresponding to expression.

\n
\n", "signature": "(\tcls,\texpression: sqlglot.expressions.Expression,\tctes: Optional[Dict[str, sqlglot.planner.Step]] = None) -> sqlglot.planner.Step:", "funcdef": "def"}, "sqlglot.schema.Schema": {"fullname": "sqlglot.schema.Schema", "modulename": "sqlglot.schema", "qualname": "Schema", "kind": "class", "doc": "

Abstract base class for database schemas

\n", "bases": "abc.ABC"}, "sqlglot.schema.Schema.add_table": {"fullname": "sqlglot.schema.Schema.add_table", "modulename": "sqlglot.schema", "qualname": "Schema.add_table", "kind": "function", "doc": "

Register or update a table. Some implementing classes may require column information to also be provided.

\n\n
Arguments:
\n\n
    \n
  • table: table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.Schema.column_names": {"fullname": "sqlglot.schema.Schema.column_names", "modulename": "sqlglot.schema", "qualname": "Schema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.Schema.get_column_type": {"fullname": "sqlglot.schema.Schema.get_column_type", "modulename": "sqlglot.schema", "qualname": "Schema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.Schema.supported_table_args": {"fullname": "sqlglot.schema.Schema.supported_table_args", "modulename": "sqlglot.schema", "qualname": "Schema.supported_table_args", "kind": "variable", "doc": "

Table arguments this schema support, e.g. (\"this\", \"db\", \"catalog\")

\n", "annotation": ": Tuple[str, ...]"}, "sqlglot.schema.AbstractMappingSchema": {"fullname": "sqlglot.schema.AbstractMappingSchema", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema", "kind": "class", "doc": "

Abstract base class for generic types.

\n\n

A generic type is typically declared by inheriting from\nthis class parameterized with one or more type variables.\nFor example, a generic mapping type might be defined as::

\n\n

class Mapping(Generic[KT, VT]):\n def __getitem__(self, key: KT) -> VT:\n ...\n # Etc.

\n\n

This class can then be used as follows::

\n\n

def lookup_name(mapping: Mapping[KT, VT], key: KT, default: VT) -> VT:\n try:\n return mapping[key]\n except KeyError:\n return default

\n", "bases": "typing.Generic[~T]"}, "sqlglot.schema.AbstractMappingSchema.__init__": {"fullname": "sqlglot.schema.AbstractMappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(mapping: dict | None = None)"}, "sqlglot.schema.AbstractMappingSchema.table_parts": {"fullname": "sqlglot.schema.AbstractMappingSchema.table_parts", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.table_parts", "kind": "function", "doc": "

\n", "signature": "(self, table: sqlglot.expressions.Table) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.AbstractMappingSchema.find": {"fullname": "sqlglot.schema.AbstractMappingSchema.find", "modulename": "sqlglot.schema", "qualname": "AbstractMappingSchema.find", "kind": "function", "doc": "

\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table,\ttrie: Optional[Dict] = None,\traise_on_missing: bool = True) -> Optional[~T]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema": {"fullname": "sqlglot.schema.MappingSchema", "modulename": "sqlglot.schema", "qualname": "MappingSchema", "kind": "class", "doc": "

Schema based on a nested mapping.

\n\n
Arguments:
\n\n
    \n
  • schema (dict): Mapping in one of the following forms:\n
      \n
    1. {table: {col: type}}
    2. \n
    3. {db: {table: {col: type}}}
    4. \n
    5. {catalog: {db: {table: {col: type}}}}
    6. \n
    7. None - Tables will be added later
    8. \n
  • \n
  • visible (dict): Optional mapping of which columns in the schema are visible. If not provided, all columns\nare assumed to be visible. The nesting should mirror that of the schema:\n
      \n
    1. {table: set(cols)}}
    2. \n
    3. {db: {table: set(cols)}}}
    4. \n
    5. {catalog: {db: {table: set(*cols)}}}}
    6. \n
  • \n
  • dialect (str): The dialect to be used for custom type mappings.
  • \n
\n", "bases": "sqlglot.schema.AbstractMappingSchema[typing.Dict[str, str]], Schema"}, "sqlglot.schema.MappingSchema.__init__": {"fullname": "sqlglot.schema.MappingSchema.__init__", "modulename": "sqlglot.schema", "qualname": "MappingSchema.__init__", "kind": "function", "doc": "

\n", "signature": "(\tschema: Optional[Dict] = None,\tvisible: Optional[Dict] = None,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None)"}, "sqlglot.schema.MappingSchema.from_mapping_schema": {"fullname": "sqlglot.schema.MappingSchema.from_mapping_schema", "modulename": "sqlglot.schema", "qualname": "MappingSchema.from_mapping_schema", "kind": "function", "doc": "

\n", "signature": "(\tcls,\tmapping_schema: sqlglot.schema.MappingSchema) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.copy": {"fullname": "sqlglot.schema.MappingSchema.copy", "modulename": "sqlglot.schema", "qualname": "MappingSchema.copy", "kind": "function", "doc": "

\n", "signature": "(self, **kwargs) -> sqlglot.schema.MappingSchema:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.add_table": {"fullname": "sqlglot.schema.MappingSchema.add_table", "modulename": "sqlglot.schema", "qualname": "MappingSchema.add_table", "kind": "function", "doc": "

Register or update a table. Updates are only performed if a new column mapping is provided.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance or string representing the table.
  • \n
  • column_mapping: a column mapping that describes the structure of the table.
  • \n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn_mapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType] = None) -> None:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.column_names": {"fullname": "sqlglot.schema.MappingSchema.column_names", "modulename": "sqlglot.schema", "qualname": "MappingSchema.column_names", "kind": "function", "doc": "

Get the column names for a table.

\n\n
Arguments:
\n\n
    \n
  • table: the Table expression instance.
  • \n
  • only_visible: whether to include invisible columns.
  • \n
\n\n
Returns:
\n\n
\n

The list of column names.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tonly_visible: bool = False) -> List[str]:", "funcdef": "def"}, "sqlglot.schema.MappingSchema.get_column_type": {"fullname": "sqlglot.schema.MappingSchema.get_column_type", "modulename": "sqlglot.schema", "qualname": "MappingSchema.get_column_type", "kind": "function", "doc": "

Get the sqlglot.exp.DataType type of a column in the schema.

\n\n
Arguments:
\n\n
    \n
  • table: the source table.
  • \n
  • column: the target column.
  • \n
\n\n
Returns:
\n\n
\n

The resulting column type.

\n
\n", "signature": "(\tself,\ttable: sqlglot.expressions.Table | str,\tcolumn: sqlglot.expressions.Column | str) -> sqlglot.expressions.DataType:", "funcdef": "def"}, "sqlglot.schema.ensure_schema": {"fullname": "sqlglot.schema.ensure_schema", "modulename": "sqlglot.schema", "qualname": "ensure_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Any,\tdialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.schema.Schema:", "funcdef": "def"}, "sqlglot.schema.ensure_column_mapping": {"fullname": "sqlglot.schema.ensure_column_mapping", "modulename": "sqlglot.schema", "qualname": "ensure_column_mapping", "kind": "function", "doc": "

\n", "signature": "(\tmapping: Union[Dict, str, sqlglot.dataframe.sql.types.StructType, List, NoneType]) -> Dict:", "funcdef": "def"}, "sqlglot.schema.flatten_schema": {"fullname": "sqlglot.schema.flatten_schema", "modulename": "sqlglot.schema", "qualname": "flatten_schema", "kind": "function", "doc": "

\n", "signature": "(\tschema: Dict,\tdepth: int,\tkeys: Optional[List[str]] = None) -> List[List[str]]:", "funcdef": "def"}, "sqlglot.serde": {"fullname": "sqlglot.serde", "modulename": "sqlglot.serde", "kind": "module", "doc": "

\n"}, "sqlglot.serde.dump": {"fullname": "sqlglot.serde.dump", "modulename": "sqlglot.serde", "qualname": "dump", "kind": "function", "doc": "

Recursively dump an AST into a JSON-serializable dict.

\n", "signature": "(\tnode: Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]) -> Union[dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.serde.load": {"fullname": "sqlglot.serde.load", "modulename": "sqlglot.serde", "qualname": "load", "kind": "function", "doc": "

Recursively load a dict (as returned by dump) into an AST.

\n", "signature": "(\tobj: Union[dict, list, str, float, int, bool]) -> Union[List[ForwardRef('Node')], sqlglot.expressions.DataType.Type, sqlglot.expressions.Expression, dict, list, str, float, int, bool]:", "funcdef": "def"}, "sqlglot.time": {"fullname": "sqlglot.time", "modulename": "sqlglot.time", "kind": "module", "doc": "

\n"}, "sqlglot.time.format_time": {"fullname": "sqlglot.time.format_time", "modulename": "sqlglot.time", "qualname": "format_time", "kind": "function", "doc": "

Converts a time string given a mapping.

\n\n
Examples:
\n\n
\n
\n
>>> format_time("%Y", {"%Y": "YYYY"})\n'YYYY'\n
\n
\n \n

Args:\n mapping: dictionary of time format to target time format.\n trie: optional trie, can be passed in for performance.

\n \n

Returns:\n The converted time string.

\n
\n", "signature": "(\tstring: str,\tmapping: Dict[str, str],\ttrie: Optional[Dict] = None) -> Optional[str]:", "funcdef": "def"}, "sqlglot.tokens": {"fullname": "sqlglot.tokens", "modulename": "sqlglot.tokens", "kind": "module", "doc": "

\n"}, "sqlglot.tokens.TokenType": {"fullname": "sqlglot.tokens.TokenType", "modulename": "sqlglot.tokens", "qualname": "TokenType", "kind": "class", "doc": "

An enumeration.

\n", "bases": "sqlglot.helper.AutoName"}, "sqlglot.tokens.TokenType.L_PAREN": {"fullname": "sqlglot.tokens.TokenType.L_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_PAREN: 'L_PAREN'>"}, "sqlglot.tokens.TokenType.R_PAREN": {"fullname": "sqlglot.tokens.TokenType.R_PAREN", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_PAREN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_PAREN: 'R_PAREN'>"}, "sqlglot.tokens.TokenType.L_BRACKET": {"fullname": "sqlglot.tokens.TokenType.L_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACKET: 'L_BRACKET'>"}, "sqlglot.tokens.TokenType.R_BRACKET": {"fullname": "sqlglot.tokens.TokenType.R_BRACKET", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACKET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACKET: 'R_BRACKET'>"}, "sqlglot.tokens.TokenType.L_BRACE": {"fullname": "sqlglot.tokens.TokenType.L_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.L_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.L_BRACE: 'L_BRACE'>"}, "sqlglot.tokens.TokenType.R_BRACE": {"fullname": "sqlglot.tokens.TokenType.R_BRACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.R_BRACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.R_BRACE: 'R_BRACE'>"}, "sqlglot.tokens.TokenType.COMMA": {"fullname": "sqlglot.tokens.TokenType.COMMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.COMMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COMMA: 'COMMA'>"}, "sqlglot.tokens.TokenType.DOT": {"fullname": "sqlglot.tokens.TokenType.DOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOT: 'DOT'>"}, "sqlglot.tokens.TokenType.DASH": {"fullname": "sqlglot.tokens.TokenType.DASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.DASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DASH: 'DASH'>"}, "sqlglot.tokens.TokenType.PLUS": {"fullname": "sqlglot.tokens.TokenType.PLUS", "modulename": "sqlglot.tokens", "qualname": "TokenType.PLUS", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PLUS: 'PLUS'>"}, "sqlglot.tokens.TokenType.COLON": {"fullname": "sqlglot.tokens.TokenType.COLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLON: 'COLON'>"}, "sqlglot.tokens.TokenType.DCOLON": {"fullname": "sqlglot.tokens.TokenType.DCOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.DCOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DCOLON: 'DCOLON'>"}, "sqlglot.tokens.TokenType.SEMICOLON": {"fullname": "sqlglot.tokens.TokenType.SEMICOLON", "modulename": "sqlglot.tokens", "qualname": "TokenType.SEMICOLON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SEMICOLON: 'SEMICOLON'>"}, "sqlglot.tokens.TokenType.STAR": {"fullname": "sqlglot.tokens.TokenType.STAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.STAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STAR: 'STAR'>"}, "sqlglot.tokens.TokenType.BACKSLASH": {"fullname": "sqlglot.tokens.TokenType.BACKSLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.BACKSLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BACKSLASH: 'BACKSLASH'>"}, "sqlglot.tokens.TokenType.SLASH": {"fullname": "sqlglot.tokens.TokenType.SLASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.SLASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SLASH: 'SLASH'>"}, "sqlglot.tokens.TokenType.LT": {"fullname": "sqlglot.tokens.TokenType.LT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT: 'LT'>"}, "sqlglot.tokens.TokenType.LTE": {"fullname": "sqlglot.tokens.TokenType.LTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.LTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LTE: 'LTE'>"}, "sqlglot.tokens.TokenType.GT": {"fullname": "sqlglot.tokens.TokenType.GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GT: 'GT'>"}, "sqlglot.tokens.TokenType.GTE": {"fullname": "sqlglot.tokens.TokenType.GTE", "modulename": "sqlglot.tokens", "qualname": "TokenType.GTE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.GTE: 'GTE'>"}, "sqlglot.tokens.TokenType.NOT": {"fullname": "sqlglot.tokens.TokenType.NOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.NOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NOT: 'NOT'>"}, "sqlglot.tokens.TokenType.EQ": {"fullname": "sqlglot.tokens.TokenType.EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.EQ: 'EQ'>"}, "sqlglot.tokens.TokenType.NEQ": {"fullname": "sqlglot.tokens.TokenType.NEQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NEQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NEQ: 'NEQ'>"}, "sqlglot.tokens.TokenType.NULLSAFE_EQ": {"fullname": "sqlglot.tokens.TokenType.NULLSAFE_EQ", "modulename": "sqlglot.tokens", "qualname": "TokenType.NULLSAFE_EQ", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NULLSAFE_EQ: 'NULLSAFE_EQ'>"}, "sqlglot.tokens.TokenType.AND": {"fullname": "sqlglot.tokens.TokenType.AND", "modulename": "sqlglot.tokens", "qualname": "TokenType.AND", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AND: 'AND'>"}, "sqlglot.tokens.TokenType.OR": {"fullname": "sqlglot.tokens.TokenType.OR", "modulename": "sqlglot.tokens", "qualname": "TokenType.OR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.OR: 'OR'>"}, "sqlglot.tokens.TokenType.AMP": {"fullname": "sqlglot.tokens.TokenType.AMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.AMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AMP: 'AMP'>"}, "sqlglot.tokens.TokenType.DPIPE": {"fullname": "sqlglot.tokens.TokenType.DPIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DPIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DPIPE: 'DPIPE'>"}, "sqlglot.tokens.TokenType.PIPE": {"fullname": "sqlglot.tokens.TokenType.PIPE", "modulename": "sqlglot.tokens", "qualname": "TokenType.PIPE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PIPE: 'PIPE'>"}, "sqlglot.tokens.TokenType.CARET": {"fullname": "sqlglot.tokens.TokenType.CARET", "modulename": "sqlglot.tokens", "qualname": "TokenType.CARET", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CARET: 'CARET'>"}, "sqlglot.tokens.TokenType.TILDA": {"fullname": "sqlglot.tokens.TokenType.TILDA", "modulename": "sqlglot.tokens", "qualname": "TokenType.TILDA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TILDA: 'TILDA'>"}, "sqlglot.tokens.TokenType.ARROW": {"fullname": "sqlglot.tokens.TokenType.ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.ARROW: 'ARROW'>"}, "sqlglot.tokens.TokenType.DARROW": {"fullname": "sqlglot.tokens.TokenType.DARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DARROW: 'DARROW'>"}, "sqlglot.tokens.TokenType.FARROW": {"fullname": "sqlglot.tokens.TokenType.FARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.FARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FARROW: 'FARROW'>"}, "sqlglot.tokens.TokenType.HASH": {"fullname": "sqlglot.tokens.TokenType.HASH", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH: 'HASH'>"}, "sqlglot.tokens.TokenType.HASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.HASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.HASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HASH_ARROW: 'HASH_ARROW'>"}, "sqlglot.tokens.TokenType.DHASH_ARROW": {"fullname": "sqlglot.tokens.TokenType.DHASH_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.DHASH_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DHASH_ARROW: 'DHASH_ARROW'>"}, "sqlglot.tokens.TokenType.LR_ARROW": {"fullname": "sqlglot.tokens.TokenType.LR_ARROW", "modulename": "sqlglot.tokens", "qualname": "TokenType.LR_ARROW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LR_ARROW: 'LR_ARROW'>"}, "sqlglot.tokens.TokenType.LT_AT": {"fullname": "sqlglot.tokens.TokenType.LT_AT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LT_AT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LT_AT: 'LT_AT'>"}, "sqlglot.tokens.TokenType.AT_GT": {"fullname": "sqlglot.tokens.TokenType.AT_GT", "modulename": "sqlglot.tokens", "qualname": "TokenType.AT_GT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.AT_GT: 'AT_GT'>"}, "sqlglot.tokens.TokenType.DOLLAR": {"fullname": "sqlglot.tokens.TokenType.DOLLAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOLLAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOLLAR: 'DOLLAR'>"}, "sqlglot.tokens.TokenType.PARAMETER": {"fullname": "sqlglot.tokens.TokenType.PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.PARAMETER: 'PARAMETER'>"}, "sqlglot.tokens.TokenType.SESSION_PARAMETER": {"fullname": "sqlglot.tokens.TokenType.SESSION_PARAMETER", "modulename": "sqlglot.tokens", "qualname": "TokenType.SESSION_PARAMETER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SESSION_PARAMETER: 'SESSION_PARAMETER'>"}, "sqlglot.tokens.TokenType.NATIONAL": {"fullname": "sqlglot.tokens.TokenType.NATIONAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.NATIONAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NATIONAL: 'NATIONAL'>"}, "sqlglot.tokens.TokenType.DAMP": {"fullname": "sqlglot.tokens.TokenType.DAMP", "modulename": "sqlglot.tokens", "qualname": "TokenType.DAMP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DAMP: 'DAMP'>"}, "sqlglot.tokens.TokenType.BLOCK_START": {"fullname": "sqlglot.tokens.TokenType.BLOCK_START", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_START", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_START: 'BLOCK_START'>"}, "sqlglot.tokens.TokenType.BLOCK_END": {"fullname": "sqlglot.tokens.TokenType.BLOCK_END", "modulename": "sqlglot.tokens", "qualname": "TokenType.BLOCK_END", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BLOCK_END: 'BLOCK_END'>"}, "sqlglot.tokens.TokenType.SPACE": {"fullname": "sqlglot.tokens.TokenType.SPACE", "modulename": "sqlglot.tokens", "qualname": "TokenType.SPACE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SPACE: 'SPACE'>"}, "sqlglot.tokens.TokenType.BREAK": {"fullname": "sqlglot.tokens.TokenType.BREAK", "modulename": "sqlglot.tokens", "qualname": "TokenType.BREAK", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BREAK: 'BREAK'>"}, "sqlglot.tokens.TokenType.STRING": {"fullname": "sqlglot.tokens.TokenType.STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRING: 'STRING'>"}, "sqlglot.tokens.TokenType.NUMBER": {"fullname": "sqlglot.tokens.TokenType.NUMBER", "modulename": "sqlglot.tokens", "qualname": "TokenType.NUMBER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NUMBER: 'NUMBER'>"}, "sqlglot.tokens.TokenType.IDENTIFIER": {"fullname": "sqlglot.tokens.TokenType.IDENTIFIER", "modulename": "sqlglot.tokens", "qualname": "TokenType.IDENTIFIER", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.IDENTIFIER: 'IDENTIFIER'>"}, "sqlglot.tokens.TokenType.DATABASE": {"fullname": "sqlglot.tokens.TokenType.DATABASE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DATABASE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DATABASE: 'DATABASE'>"}, "sqlglot.tokens.TokenType.COLUMN": {"fullname": "sqlglot.tokens.TokenType.COLUMN", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLUMN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLUMN: 'COLUMN'>"}, "sqlglot.tokens.TokenType.COLUMN_DEF": {"fullname": "sqlglot.tokens.TokenType.COLUMN_DEF", "modulename": "sqlglot.tokens", "qualname": "TokenType.COLUMN_DEF", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.COLUMN_DEF: 'COLUMN_DEF'>"}, "sqlglot.tokens.TokenType.SCHEMA": {"fullname": "sqlglot.tokens.TokenType.SCHEMA", "modulename": "sqlglot.tokens", "qualname": "TokenType.SCHEMA", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SCHEMA: 'SCHEMA'>"}, "sqlglot.tokens.TokenType.TABLE": {"fullname": "sqlglot.tokens.TokenType.TABLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TABLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TABLE: 'TABLE'>"}, "sqlglot.tokens.TokenType.VAR": {"fullname": "sqlglot.tokens.TokenType.VAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.VAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VAR: 'VAR'>"}, "sqlglot.tokens.TokenType.BIT_STRING": {"fullname": "sqlglot.tokens.TokenType.BIT_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIT_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIT_STRING: 'BIT_STRING'>"}, "sqlglot.tokens.TokenType.HEX_STRING": {"fullname": "sqlglot.tokens.TokenType.HEX_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.HEX_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.HEX_STRING: 'HEX_STRING'>"}, "sqlglot.tokens.TokenType.BYTE_STRING": {"fullname": "sqlglot.tokens.TokenType.BYTE_STRING", "modulename": "sqlglot.tokens", "qualname": "TokenType.BYTE_STRING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BYTE_STRING: 'BYTE_STRING'>"}, "sqlglot.tokens.TokenType.BIT": {"fullname": "sqlglot.tokens.TokenType.BIT", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIT: 'BIT'>"}, "sqlglot.tokens.TokenType.BOOLEAN": {"fullname": "sqlglot.tokens.TokenType.BOOLEAN", "modulename": "sqlglot.tokens", "qualname": "TokenType.BOOLEAN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BOOLEAN: 'BOOLEAN'>"}, "sqlglot.tokens.TokenType.TINYINT": {"fullname": "sqlglot.tokens.TokenType.TINYINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.TINYINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TINYINT: 'TINYINT'>"}, "sqlglot.tokens.TokenType.UTINYINT": {"fullname": "sqlglot.tokens.TokenType.UTINYINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UTINYINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UTINYINT: 'UTINYINT'>"}, "sqlglot.tokens.TokenType.SMALLINT": {"fullname": "sqlglot.tokens.TokenType.SMALLINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.SMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SMALLINT: 'SMALLINT'>"}, "sqlglot.tokens.TokenType.USMALLINT": {"fullname": "sqlglot.tokens.TokenType.USMALLINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.USMALLINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USMALLINT: 'USMALLINT'>"}, "sqlglot.tokens.TokenType.INT": {"fullname": "sqlglot.tokens.TokenType.INT", "modulename": "sqlglot.tokens", "qualname": "TokenType.INT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.INT: 'INT'>"}, "sqlglot.tokens.TokenType.UINT": {"fullname": "sqlglot.tokens.TokenType.UINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UINT: 'UINT'>"}, "sqlglot.tokens.TokenType.BIGINT": {"fullname": "sqlglot.tokens.TokenType.BIGINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIGINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIGINT: 'BIGINT'>"}, "sqlglot.tokens.TokenType.UBIGINT": {"fullname": "sqlglot.tokens.TokenType.UBIGINT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UBIGINT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UBIGINT: 'UBIGINT'>"}, "sqlglot.tokens.TokenType.FLOAT": {"fullname": "sqlglot.tokens.TokenType.FLOAT", "modulename": "sqlglot.tokens", "qualname": "TokenType.FLOAT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.FLOAT: 'FLOAT'>"}, "sqlglot.tokens.TokenType.DOUBLE": {"fullname": "sqlglot.tokens.TokenType.DOUBLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.DOUBLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DOUBLE: 'DOUBLE'>"}, "sqlglot.tokens.TokenType.DECIMAL": {"fullname": "sqlglot.tokens.TokenType.DECIMAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.DECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.DECIMAL: 'DECIMAL'>"}, "sqlglot.tokens.TokenType.BIGDECIMAL": {"fullname": "sqlglot.tokens.TokenType.BIGDECIMAL", "modulename": "sqlglot.tokens", "qualname": "TokenType.BIGDECIMAL", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BIGDECIMAL: 'BIGDECIMAL'>"}, "sqlglot.tokens.TokenType.CHAR": {"fullname": "sqlglot.tokens.TokenType.CHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.CHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.CHAR: 'CHAR'>"}, "sqlglot.tokens.TokenType.NCHAR": {"fullname": "sqlglot.tokens.TokenType.NCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.NCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NCHAR: 'NCHAR'>"}, "sqlglot.tokens.TokenType.VARCHAR": {"fullname": "sqlglot.tokens.TokenType.VARCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.VARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VARCHAR: 'VARCHAR'>"}, "sqlglot.tokens.TokenType.NVARCHAR": {"fullname": "sqlglot.tokens.TokenType.NVARCHAR", "modulename": "sqlglot.tokens", "qualname": "TokenType.NVARCHAR", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.NVARCHAR: 'NVARCHAR'>"}, "sqlglot.tokens.TokenType.TEXT": {"fullname": "sqlglot.tokens.TokenType.TEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.TEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TEXT: 'TEXT'>"}, "sqlglot.tokens.TokenType.MEDIUMTEXT": {"fullname": "sqlglot.tokens.TokenType.MEDIUMTEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.MEDIUMTEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.MEDIUMTEXT: 'MEDIUMTEXT'>"}, "sqlglot.tokens.TokenType.LONGTEXT": {"fullname": "sqlglot.tokens.TokenType.LONGTEXT", "modulename": "sqlglot.tokens", "qualname": "TokenType.LONGTEXT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LONGTEXT: 'LONGTEXT'>"}, "sqlglot.tokens.TokenType.MEDIUMBLOB": {"fullname": "sqlglot.tokens.TokenType.MEDIUMBLOB", "modulename": "sqlglot.tokens", "qualname": "TokenType.MEDIUMBLOB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.MEDIUMBLOB: 'MEDIUMBLOB'>"}, "sqlglot.tokens.TokenType.LONGBLOB": {"fullname": "sqlglot.tokens.TokenType.LONGBLOB", "modulename": "sqlglot.tokens", "qualname": "TokenType.LONGBLOB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.LONGBLOB: 'LONGBLOB'>"}, "sqlglot.tokens.TokenType.BINARY": {"fullname": "sqlglot.tokens.TokenType.BINARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.BINARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.BINARY: 'BINARY'>"}, "sqlglot.tokens.TokenType.VARBINARY": {"fullname": "sqlglot.tokens.TokenType.VARBINARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.VARBINARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VARBINARY: 'VARBINARY'>"}, "sqlglot.tokens.TokenType.JSON": {"fullname": "sqlglot.tokens.TokenType.JSON", "modulename": "sqlglot.tokens", "qualname": "TokenType.JSON", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.JSON: 'JSON'>"}, "sqlglot.tokens.TokenType.JSONB": {"fullname": "sqlglot.tokens.TokenType.JSONB", "modulename": "sqlglot.tokens", "qualname": "TokenType.JSONB", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.JSONB: 'JSONB'>"}, "sqlglot.tokens.TokenType.TIME": {"fullname": "sqlglot.tokens.TokenType.TIME", "modulename": "sqlglot.tokens", "qualname": "TokenType.TIME", "kind": "variable", "doc": "

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\n", "default_value": "<TokenType.SOME: 'SOME'>"}, "sqlglot.tokens.TokenType.SORTKEY": {"fullname": "sqlglot.tokens.TokenType.SORTKEY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORTKEY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORTKEY: 'SORTKEY'>"}, "sqlglot.tokens.TokenType.SORT_BY": {"fullname": "sqlglot.tokens.TokenType.SORT_BY", "modulename": "sqlglot.tokens", "qualname": "TokenType.SORT_BY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.SORT_BY: 'SORT_BY'>"}, "sqlglot.tokens.TokenType.STRUCT": {"fullname": "sqlglot.tokens.TokenType.STRUCT", "modulename": "sqlglot.tokens", "qualname": "TokenType.STRUCT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.STRUCT: 'STRUCT'>"}, "sqlglot.tokens.TokenType.TABLE_SAMPLE": {"fullname": "sqlglot.tokens.TokenType.TABLE_SAMPLE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TABLE_SAMPLE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TABLE_SAMPLE: 'TABLE_SAMPLE'>"}, "sqlglot.tokens.TokenType.TEMPORARY": {"fullname": "sqlglot.tokens.TokenType.TEMPORARY", "modulename": "sqlglot.tokens", "qualname": "TokenType.TEMPORARY", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TEMPORARY: 'TEMPORARY'>"}, "sqlglot.tokens.TokenType.TOP": {"fullname": "sqlglot.tokens.TokenType.TOP", "modulename": "sqlglot.tokens", "qualname": "TokenType.TOP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TOP: 'TOP'>"}, "sqlglot.tokens.TokenType.THEN": {"fullname": "sqlglot.tokens.TokenType.THEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.THEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.THEN: 'THEN'>"}, "sqlglot.tokens.TokenType.TRAILING": {"fullname": "sqlglot.tokens.TokenType.TRAILING", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRAILING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRAILING: 'TRAILING'>"}, "sqlglot.tokens.TokenType.TRUE": {"fullname": "sqlglot.tokens.TokenType.TRUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.TRUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.TRUE: 'TRUE'>"}, "sqlglot.tokens.TokenType.UNBOUNDED": {"fullname": "sqlglot.tokens.TokenType.UNBOUNDED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNBOUNDED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNBOUNDED: 'UNBOUNDED'>"}, "sqlglot.tokens.TokenType.UNCACHE": {"fullname": "sqlglot.tokens.TokenType.UNCACHE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNCACHE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNCACHE: 'UNCACHE'>"}, "sqlglot.tokens.TokenType.UNION": {"fullname": "sqlglot.tokens.TokenType.UNION", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNION", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNION: 'UNION'>"}, "sqlglot.tokens.TokenType.UNLOGGED": {"fullname": "sqlglot.tokens.TokenType.UNLOGGED", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNLOGGED", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNLOGGED: 'UNLOGGED'>"}, "sqlglot.tokens.TokenType.UNNEST": {"fullname": "sqlglot.tokens.TokenType.UNNEST", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNNEST", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNNEST: 'UNNEST'>"}, "sqlglot.tokens.TokenType.UNPIVOT": {"fullname": "sqlglot.tokens.TokenType.UNPIVOT", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNPIVOT", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNPIVOT: 'UNPIVOT'>"}, "sqlglot.tokens.TokenType.UPDATE": {"fullname": "sqlglot.tokens.TokenType.UPDATE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UPDATE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UPDATE: 'UPDATE'>"}, "sqlglot.tokens.TokenType.USE": {"fullname": "sqlglot.tokens.TokenType.USE", "modulename": "sqlglot.tokens", "qualname": "TokenType.USE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USE: 'USE'>"}, "sqlglot.tokens.TokenType.USING": {"fullname": "sqlglot.tokens.TokenType.USING", "modulename": "sqlglot.tokens", "qualname": "TokenType.USING", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.USING: 'USING'>"}, "sqlglot.tokens.TokenType.VALUES": {"fullname": "sqlglot.tokens.TokenType.VALUES", "modulename": "sqlglot.tokens", "qualname": "TokenType.VALUES", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VALUES: 'VALUES'>"}, "sqlglot.tokens.TokenType.VIEW": {"fullname": "sqlglot.tokens.TokenType.VIEW", "modulename": "sqlglot.tokens", "qualname": "TokenType.VIEW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VIEW: 'VIEW'>"}, "sqlglot.tokens.TokenType.VOLATILE": {"fullname": "sqlglot.tokens.TokenType.VOLATILE", "modulename": "sqlglot.tokens", "qualname": "TokenType.VOLATILE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.VOLATILE: 'VOLATILE'>"}, "sqlglot.tokens.TokenType.WHEN": {"fullname": "sqlglot.tokens.TokenType.WHEN", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHEN", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHEN: 'WHEN'>"}, "sqlglot.tokens.TokenType.WHERE": {"fullname": "sqlglot.tokens.TokenType.WHERE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WHERE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WHERE: 'WHERE'>"}, "sqlglot.tokens.TokenType.WINDOW": {"fullname": "sqlglot.tokens.TokenType.WINDOW", "modulename": "sqlglot.tokens", "qualname": "TokenType.WINDOW", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WINDOW: 'WINDOW'>"}, "sqlglot.tokens.TokenType.WITH": {"fullname": "sqlglot.tokens.TokenType.WITH", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH: 'WITH'>"}, "sqlglot.tokens.TokenType.WITH_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_TIME_ZONE: 'WITH_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITH_LOCAL_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITH_LOCAL_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITH_LOCAL_TIME_ZONE: 'WITH_LOCAL_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.WITHIN_GROUP": {"fullname": "sqlglot.tokens.TokenType.WITHIN_GROUP", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHIN_GROUP", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHIN_GROUP: 'WITHIN_GROUP'>"}, "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE": {"fullname": "sqlglot.tokens.TokenType.WITHOUT_TIME_ZONE", "modulename": "sqlglot.tokens", "qualname": "TokenType.WITHOUT_TIME_ZONE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.WITHOUT_TIME_ZONE: 'WITHOUT_TIME_ZONE'>"}, "sqlglot.tokens.TokenType.UNIQUE": {"fullname": "sqlglot.tokens.TokenType.UNIQUE", "modulename": "sqlglot.tokens", "qualname": "TokenType.UNIQUE", "kind": "variable", "doc": "

\n", "default_value": "<TokenType.UNIQUE: 'UNIQUE'>"}, "sqlglot.tokens.Token": {"fullname": "sqlglot.tokens.Token", "modulename": "sqlglot.tokens", "qualname": "Token", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Token.__init__": {"fullname": "sqlglot.tokens.Token.__init__", "modulename": "sqlglot.tokens", "qualname": "Token.__init__", "kind": "function", "doc": "

\n", "signature": "(\ttoken_type: sqlglot.tokens.TokenType,\ttext: str,\tline: int = 1,\tcol: int = 1,\tend: int = 0,\tcomments: List[str] = [])"}, "sqlglot.tokens.Token.number": {"fullname": "sqlglot.tokens.Token.number", "modulename": "sqlglot.tokens", "qualname": "Token.number", "kind": "function", "doc": "

Returns a NUMBER token with number as its text.

\n", "signature": "(cls, number: int) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.string": {"fullname": "sqlglot.tokens.Token.string", "modulename": "sqlglot.tokens", "qualname": "Token.string", "kind": "function", "doc": "

Returns a STRING token with string as its text.

\n", "signature": "(cls, string: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.identifier": {"fullname": "sqlglot.tokens.Token.identifier", "modulename": "sqlglot.tokens", "qualname": "Token.identifier", "kind": "function", "doc": "

Returns an IDENTIFIER token with identifier as its text.

\n", "signature": "(cls, identifier: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.var": {"fullname": "sqlglot.tokens.Token.var", "modulename": "sqlglot.tokens", "qualname": "Token.var", "kind": "function", "doc": "

Returns an VAR token with var as its text.

\n", "signature": "(cls, var: str) -> sqlglot.tokens.Token:", "funcdef": "def"}, "sqlglot.tokens.Token.start": {"fullname": "sqlglot.tokens.Token.start", "modulename": "sqlglot.tokens", "qualname": "Token.start", "kind": "variable", "doc": "

Returns the start of the token.

\n", "annotation": ": int"}, "sqlglot.tokens.Tokenizer": {"fullname": "sqlglot.tokens.Tokenizer", "modulename": "sqlglot.tokens", "qualname": "Tokenizer", "kind": "class", "doc": "

\n"}, "sqlglot.tokens.Tokenizer.reset": {"fullname": "sqlglot.tokens.Tokenizer.reset", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.reset", "kind": "function", "doc": "

\n", "signature": "(self) -> None:", "funcdef": "def"}, "sqlglot.tokens.Tokenizer.tokenize": {"fullname": "sqlglot.tokens.Tokenizer.tokenize", "modulename": "sqlglot.tokens", "qualname": "Tokenizer.tokenize", "kind": "function", "doc": "

Returns a list of tokens corresponding to the SQL string sql.

\n", "signature": "(self, sql: str) -> List[sqlglot.tokens.Token]:", "funcdef": "def"}, "sqlglot.transforms": {"fullname": "sqlglot.transforms", "modulename": "sqlglot.transforms", "kind": "module", "doc": "

\n"}, "sqlglot.transforms.unalias_group": {"fullname": "sqlglot.transforms.unalias_group", "modulename": "sqlglot.transforms", "qualname": "unalias_group", "kind": "function", "doc": "

Replace references to select aliases in GROUP BY clauses.

\n\n
Example:
\n\n
\n
\n
>>> import sqlglot\n>>> sqlglot.parse_one("SELECT a AS b FROM x GROUP BY b").transform(unalias_group).sql()\n'SELECT a AS b FROM x GROUP BY 1'\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_distinct_on": {"fullname": "sqlglot.transforms.eliminate_distinct_on", "modulename": "sqlglot.transforms", "qualname": "eliminate_distinct_on", "kind": "function", "doc": "

Convert SELECT DISTINCT ON statements to a subquery with a window function.

\n\n

This is useful for dialects that don't support SELECT DISTINCT ON but support window functions.

\n\n
Arguments:
\n\n
    \n
  • expression: the expression that will be transformed.
  • \n
\n\n
Returns:
\n\n
\n

The transformed expression.

\n
\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.eliminate_qualify": {"fullname": "sqlglot.transforms.eliminate_qualify", "modulename": "sqlglot.transforms", "qualname": "eliminate_qualify", "kind": "function", "doc": "

Convert SELECT statements that contain the QUALIFY clause into subqueries, filtered equivalently.

\n\n

The idea behind this transformation can be seen in Snowflake's documentation for QUALIFY:\nhttps://docs.snowflake.com/en/sql-reference/constructs/qualify

\n\n

Some dialects don't support window functions in the WHERE clause, so we need to include them as\nprojections in the subquery, in order to refer to them in the outer filter using aliases. Also,\nif a column is referenced in the QUALIFY clause but is not selected, we need to include it too,\notherwise we won't be able to refer to it in the outer query's WHERE clause.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_precision_parameterized_types": {"fullname": "sqlglot.transforms.remove_precision_parameterized_types", "modulename": "sqlglot.transforms", "qualname": "remove_precision_parameterized_types", "kind": "function", "doc": "

Some dialects only allow the precision for parameterized types to be defined in the DDL and not in\nother expressions. This transforms removes the precision from parameterized types in expressions.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.unnest_to_explode": {"fullname": "sqlglot.transforms.unnest_to_explode", "modulename": "sqlglot.transforms", "qualname": "unnest_to_explode", "kind": "function", "doc": "

Convert cross join unnest into lateral view explode (used in presto -> hive).

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.explode_to_unnest": {"fullname": "sqlglot.transforms.explode_to_unnest", "modulename": "sqlglot.transforms", "qualname": "explode_to_unnest", "kind": "function", "doc": "

Convert explode/posexplode into unnest (used in hive -> presto).

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.remove_target_from_merge": {"fullname": "sqlglot.transforms.remove_target_from_merge", "modulename": "sqlglot.transforms", "qualname": "remove_target_from_merge", "kind": "function", "doc": "

Remove table refs from columns in when statements.

\n", "signature": "(\texpression: sqlglot.expressions.Expression) -> sqlglot.expressions.Expression:", "funcdef": "def"}, "sqlglot.transforms.preprocess": {"fullname": "sqlglot.transforms.preprocess", "modulename": "sqlglot.transforms", "qualname": "preprocess", "kind": "function", "doc": "

Creates a new transform by chaining a sequence of transformations and converts the resulting\nexpression to SQL, using an appropriate Generator.TRANSFORMS function.

\n\n
Arguments:
\n\n
    \n
  • transforms: sequence of transform functions. These will be called in order.
  • \n
\n\n
Returns:
\n\n
\n

Function that can be used as a generator transform.

\n
\n", "signature": "(\ttransforms: List[Callable[[sqlglot.expressions.Expression], sqlglot.expressions.Expression]]) -> Callable[[sqlglot.generator.Generator, sqlglot.expressions.Expression], str]:", "funcdef": "def"}, "sqlglot.trie": {"fullname": "sqlglot.trie", "modulename": "sqlglot.trie", "kind": "module", "doc": "

\n"}, "sqlglot.trie.new_trie": {"fullname": "sqlglot.trie.new_trie", "modulename": "sqlglot.trie", "qualname": "new_trie", "kind": "function", "doc": "

Creates a new trie out of a collection of keywords.

\n\n

The trie is represented as a sequence of nested dictionaries keyed by either single character\nstrings, or by 0, which is used to designate that a keyword is in the trie.

\n\n
Example:
\n\n
\n
\n
>>> new_trie(["bla", "foo", "blab"])\n{'b': {'l': {'a': {0: True, 'b': {0: True}}}}, 'f': {'o': {'o': {0: True}}}}\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • keywords: the keywords to create the trie from.
  • \n
  • trie: a trie to mutate instead of creating a new one
  • \n
\n\n
Returns:
\n\n
\n

The trie corresponding to keywords.

\n
\n", "signature": "(\tkeywords: Iterable[Sequence[Hashable]],\ttrie: Optional[Dict] = None) -> Dict:", "funcdef": "def"}, "sqlglot.trie.in_trie": {"fullname": "sqlglot.trie.in_trie", "modulename": "sqlglot.trie", "qualname": "in_trie", "kind": "function", "doc": "

Checks whether a key is in a trie.

\n\n
Examples:
\n\n
\n
\n
>>> in_trie(new_trie(["cat"]), "bob")\n(0, {'c': {'a': {'t': {0: True}}}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "ca")\n(1, {'t': {0: True}})\n
\n
\n \n
\n
>>> in_trie(new_trie(["cat"]), "cat")\n(2, {0: True})\n
\n
\n
\n\n
Arguments:
\n\n
    \n
  • trie: the trie to be searched.
  • \n
  • key: the target key.
  • \n
\n\n
Returns:
\n\n
\n

A pair (value, subtrie), where subtrie is the sub-trie we get at the point where the search stops, and value\n is either 0 (search was unsuccessful), 1 (value is a prefix of a keyword in trie) or 2 (key is intrie`).

\n
\n", "signature": "(trie: Dict, key: Sequence[Hashable]) -> Tuple[int, Dict]:", "funcdef": "def"}}, "docInfo": {"sqlglot": {"qualname": 0, "fullname": 1, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 5691}, "sqlglot.pretty": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 1, "signature": 0, "bases": 0, "doc": 10}, "sqlglot.schema": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.parse": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 124, "bases": 0, "doc": 84}, "sqlglot.parse_one": {"qualname": 2, "fullname": 3, "annotation": 0, "default_value": 0, "signature": 198, "bases": 0, "doc": 99}, "sqlglot.transpile": {"qualname": 1, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 239, "bases": 0, "doc": 177}, "sqlglot.dataframe": {"qualname": 0, "fullname": 2, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3543}, "sqlglot.dataframe.sql": {"qualname": 0, "fullname": 3, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.SparkSession": {"qualname": 1, "fullname": 4, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.SparkSession.table": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 44, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.SparkSession.createDataFrame": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 208, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.SparkSession.sql": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 44, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame": {"qualname": 1, "fullname": 4, "annotation": 0, "default_value": 0, "signature": 0, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.__init__": {"qualname": 3, "fullname": 6, "annotation": 0, "default_value": 0, "signature": 259, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.sql": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 51, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.copy": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 41, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.select": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 48, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.alias": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 51, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.where": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 86, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.filter": {"qualname": 2, "fullname": 5, "annotation": 0, "default_value": 0, "signature": 86, "bases": 0, "doc": 3}, "sqlglot.dataframe.sql.DataFrame.groupBy": {"qualname": 2, 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1}}}}}, "n": {"docs": {"sqlglot.diff.diff": {"tf": 1}}, "df": 1}}}}, "t": {"docs": {"sqlglot.executor.table.Tables": {"tf": 1.4142135623730951}, "sqlglot.schema.AbstractMappingSchema": {"tf": 1.4142135623730951}}, "df": 2}, "w": {"docs": {}, "df": 0, "a": {"docs": {}, "df": 0, "r": {"docs": {}, "df": 0, "g": {"docs": {"sqlglot.expressions.Kwarg": {"tf": 1.4142135623730951}}, "df": 1, "s": {"docs": {"sqlglot.expressions.Condition.and_": {"tf": 1}, "sqlglot.expressions.Condition.or_": {"tf": 1}, "sqlglot.expressions.Unionable.union": {"tf": 1}, "sqlglot.expressions.Unionable.intersect": {"tf": 1}, "sqlglot.expressions.Unionable.except_": {"tf": 1}, "sqlglot.expressions.Join.on": {"tf": 1}, "sqlglot.expressions.Join.using": {"tf": 1}, "sqlglot.expressions.Subqueryable.with_": {"tf": 1}, "sqlglot.expressions.Union.limit": {"tf": 1}, "sqlglot.expressions.Select.from_": {"tf": 1}, "sqlglot.expressions.Select.group_by": {"tf": 1}, "sqlglot.expressions.Select.order_by": {"tf": 1}, "sqlglot.expressions.Select.sort_by": {"tf": 1}, "sqlglot.expressions.Select.cluster_by": {"tf": 1}, "sqlglot.expressions.Select.limit": {"tf": 1}, "sqlglot.expressions.Select.offset": {"tf": 1}, "sqlglot.expressions.Select.lateral": {"tf": 1}, "sqlglot.expressions.Select.join": {"tf": 1}, "sqlglot.expressions.Select.where": {"tf": 1}, "sqlglot.expressions.Select.having": {"tf": 1}, "sqlglot.expressions.Select.ctas": {"tf": 1}, "sqlglot.expressions.union": {"tf": 1}, "sqlglot.expressions.intersect": {"tf": 1}, "sqlglot.expressions.except_": {"tf": 1}, "sqlglot.expressions.replace_placeholders": {"tf": 1}, "sqlglot.expressions.func": {"tf": 1.7320508075688772}, "sqlglot.optimizer.optimizer.optimize": {"tf": 1.4142135623730951}, "sqlglot.parser.Parser.expression": {"tf": 1}}, "df": 28}}}}}}}}}, "pipeline": ["trimmer"], "_isPrebuiltIndex": true}; // mirrored in build-search-index.js (part 1) // Also split on html tags. this is a cheap heuristic, but good enough. diff --git a/docs/sqlglot.html b/docs/sqlglot.html index 8c37b8d..1bbf2ae 100644 --- a/docs/sqlglot.html +++ b/docs/sqlglot.html @@ -673,168 +673,171 @@ 21 Expression as Expression, 22 alias_ as alias, 23 and_ as and_, - 24 column as column, - 25 condition as condition, - 26 except_ as except_, - 27 from_ as from_, - 28 intersect as intersect, - 29 maybe_parse as maybe_parse, - 30 not_ as not_, - 31 or_ as or_, - 32 select as select, - 33 subquery as subquery, - 34 table_ as table, - 35 to_column as to_column, - 36 to_table as to_table, - 37 union as union, - 38) - 39from sqlglot.generator import Generator as Generator - 40from sqlglot.parser import Parser as Parser - 41from sqlglot.schema import MappingSchema as MappingSchema, Schema as Schema - 42from sqlglot.tokens import Tokenizer as Tokenizer, TokenType as TokenType - 43 - 44if t.TYPE_CHECKING: - 45 from sqlglot.dialects.dialect import DialectType as DialectType + 24 cast as cast, + 25 column as column, + 26 condition as condition, + 27 except_ as except_, + 28 from_ as from_, + 29 func as func, + 30 intersect as intersect, + 31 maybe_parse as maybe_parse, + 32 not_ as not_, + 33 or_ as or_, + 34 select as select, + 35 subquery as subquery, + 36 table_ as table, + 37 to_column as to_column, + 38 to_identifier as to_identifier, + 39 to_table as to_table, + 40 union as union, + 41) + 42from sqlglot.generator import Generator as Generator + 43from sqlglot.parser import Parser as Parser + 44from sqlglot.schema import MappingSchema as MappingSchema, Schema as Schema + 45from sqlglot.tokens import Tokenizer as Tokenizer, TokenType as TokenType 46 - 47 T = t.TypeVar("T", bound=Expression) - 48 + 47if t.TYPE_CHECKING: + 48 from sqlglot.dialects.dialect import DialectType as DialectType 49 - 50__version__ = "11.6.3" + 50 T = t.TypeVar("T", bound=Expression) 51 - 52pretty = False - 53"""Whether to format generated SQL by default.""" + 52 + 53__version__ = "12.1.0" 54 - 55schema = MappingSchema() - 56"""The default schema used by SQLGlot (e.g. in the optimizer).""" + 55pretty = False + 56"""Whether to format generated SQL by default.""" 57 - 58 - 59def parse(sql: str, read: DialectType = None, **opts) -> t.List[t.Optional[Expression]]: - 60 """ - 61 Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement. - 62 - 63 Args: - 64 sql: the SQL code string to parse. - 65 read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql"). - 66 **opts: other `sqlglot.parser.Parser` options. - 67 - 68 Returns: - 69 The resulting syntax tree collection. - 70 """ - 71 dialect = Dialect.get_or_raise(read)() - 72 return dialect.parse(sql, **opts) - 73 - 74 - 75@t.overload - 76def parse_one( - 77 sql: str, - 78 read: None = None, - 79 into: t.Type[T] = ..., - 80 **opts, - 81) -> T: - 82 ... - 83 - 84 - 85@t.overload - 86def parse_one( - 87 sql: str, - 88 read: DialectType, - 89 into: t.Type[T], - 90 **opts, - 91) -> T: - 92 ... - 93 - 94 - 95@t.overload - 96def parse_one( - 97 sql: str, - 98 read: None = None, - 99 into: t.Union[str, t.Collection[t.Union[str, t.Type[Expression]]]] = ..., -100 **opts, -101) -> Expression: -102 ... -103 -104 -105@t.overload -106def parse_one( -107 sql: str, -108 read: DialectType, -109 into: t.Union[str, t.Collection[t.Union[str, t.Type[Expression]]]], -110 **opts, -111) -> Expression: -112 ... -113 -114 -115@t.overload -116def parse_one( -117 sql: str, -118 **opts, -119) -> Expression: -120 ... -121 -122 -123def parse_one( -124 sql: str, -125 read: DialectType = None, -126 into: t.Optional[exp.IntoType] = None, -127 **opts, -128) -> Expression: -129 """ -130 Parses the given SQL string and returns a syntax tree for the first parsed SQL statement. -131 -132 Args: -133 sql: the SQL code string to parse. -134 read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql"). -135 into: the SQLGlot Expression to parse into. -136 **opts: other `sqlglot.parser.Parser` options. -137 -138 Returns: -139 The syntax tree for the first parsed statement. -140 """ -141 -142 dialect = Dialect.get_or_raise(read)() -143 -144 if into: -145 result = dialect.parse_into(into, sql, **opts) -146 else: -147 result = dialect.parse(sql, **opts) -148 -149 for expression in result: -150 if not expression: -151 raise ParseError(f"No expression was parsed from '{sql}'") -152 return expression -153 else: -154 raise ParseError(f"No expression was parsed from '{sql}'") -155 -156 -157def transpile( -158 sql: str, -159 read: DialectType = None, -160 write: DialectType = None, -161 identity: bool = True, -162 error_level: t.Optional[ErrorLevel] = None, -163 **opts, -164) -> t.List[str]: -165 """ -166 Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed -167 to conform to the target dialect. Each string in the returned list represents a single transformed SQL statement. -168 -169 Args: -170 sql: the SQL code string to transpile. -171 read: the source dialect used to parse the input string (eg. "spark", "hive", "presto", "mysql"). -172 write: the target dialect into which the input should be transformed (eg. "spark", "hive", "presto", "mysql"). -173 identity: if set to `True` and if the target dialect is not specified the source dialect will be used as both: -174 the source and the target dialect. -175 error_level: the desired error level of the parser. -176 **opts: other `sqlglot.generator.Generator` options. -177 -178 Returns: -179 The list of transpiled SQL statements. -180 """ -181 write = write or read if identity else write -182 return [ -183 Dialect.get_or_raise(write)().generate(expression, **opts) -184 for expression in parse(sql, read, error_level=error_level) -185 ] + 58schema = MappingSchema() + 59"""The default schema used by SQLGlot (e.g. in the optimizer).""" + 60 + 61 + 62def parse(sql: str, read: DialectType = None, **opts) -> t.List[t.Optional[Expression]]: + 63 """ + 64 Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement. + 65 + 66 Args: + 67 sql: the SQL code string to parse. + 68 read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql"). + 69 **opts: other `sqlglot.parser.Parser` options. + 70 + 71 Returns: + 72 The resulting syntax tree collection. + 73 """ + 74 dialect = Dialect.get_or_raise(read)() + 75 return dialect.parse(sql, **opts) + 76 + 77 + 78@t.overload + 79def parse_one( + 80 sql: str, + 81 read: None = None, + 82 into: t.Type[T] = ..., + 83 **opts, + 84) -> T: + 85 ... + 86 + 87 + 88@t.overload + 89def parse_one( + 90 sql: str, + 91 read: DialectType, + 92 into: t.Type[T], + 93 **opts, + 94) -> T: + 95 ... + 96 + 97 + 98@t.overload + 99def parse_one( +100 sql: str, +101 read: None = None, +102 into: t.Union[str, t.Collection[t.Union[str, t.Type[Expression]]]] = ..., +103 **opts, +104) -> Expression: +105 ... +106 +107 +108@t.overload +109def parse_one( +110 sql: str, +111 read: DialectType, +112 into: t.Union[str, t.Collection[t.Union[str, t.Type[Expression]]]], +113 **opts, +114) -> Expression: +115 ... +116 +117 +118@t.overload +119def parse_one( +120 sql: str, +121 **opts, +122) -> Expression: +123 ... +124 +125 +126def parse_one( +127 sql: str, +128 read: DialectType = None, +129 into: t.Optional[exp.IntoType] = None, +130 **opts, +131) -> Expression: +132 """ +133 Parses the given SQL string and returns a syntax tree for the first parsed SQL statement. +134 +135 Args: +136 sql: the SQL code string to parse. +137 read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql"). +138 into: the SQLGlot Expression to parse into. +139 **opts: other `sqlglot.parser.Parser` options. +140 +141 Returns: +142 The syntax tree for the first parsed statement. +143 """ +144 +145 dialect = Dialect.get_or_raise(read)() +146 +147 if into: +148 result = dialect.parse_into(into, sql, **opts) +149 else: +150 result = dialect.parse(sql, **opts) +151 +152 for expression in result: +153 if not expression: +154 raise ParseError(f"No expression was parsed from '{sql}'") +155 return expression +156 else: +157 raise ParseError(f"No expression was parsed from '{sql}'") +158 +159 +160def transpile( +161 sql: str, +162 read: DialectType = None, +163 write: DialectType = None, +164 identity: bool = True, +165 error_level: t.Optional[ErrorLevel] = None, +166 **opts, +167) -> t.List[str]: +168 """ +169 Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed +170 to conform to the target dialect. Each string in the returned list represents a single transformed SQL statement. +171 +172 Args: +173 sql: the SQL code string to transpile. +174 read: the source dialect used to parse the input string (eg. "spark", "hive", "presto", "mysql"). +175 write: the target dialect into which the input should be transformed (eg. "spark", "hive", "presto", "mysql"). +176 identity: if set to `True` and if the target dialect is not specified the source dialect will be used as both: +177 the source and the target dialect. +178 error_level: the desired error level of the parser. +179 **opts: other `sqlglot.generator.Generator` options. +180 +181 Returns: +182 The list of transpiled SQL statements. +183 """ +184 write = write or read if identity else write +185 return [ +186 Dialect.get_or_raise(write)().generate(expression, **opts) +187 for expression in parse(sql, read, error_level=error_level) +188 ] @@ -878,20 +881,20 @@ -
60def parse(sql: str, read: DialectType = None, **opts) -> t.List[t.Optional[Expression]]:
-61    """
-62    Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.
-63
-64    Args:
-65        sql: the SQL code string to parse.
-66        read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql").
-67        **opts: other `sqlglot.parser.Parser` options.
-68
-69    Returns:
-70        The resulting syntax tree collection.
-71    """
-72    dialect = Dialect.get_or_raise(read)()
-73    return dialect.parse(sql, **opts)
+            
63def parse(sql: str, read: DialectType = None, **opts) -> t.List[t.Optional[Expression]]:
+64    """
+65    Parses the given SQL string into a collection of syntax trees, one per parsed SQL statement.
+66
+67    Args:
+68        sql: the SQL code string to parse.
+69        read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql").
+70        **opts: other `sqlglot.parser.Parser` options.
+71
+72    Returns:
+73        The resulting syntax tree collection.
+74    """
+75    dialect = Dialect.get_or_raise(read)()
+76    return dialect.parse(sql, **opts)
 
@@ -925,38 +928,38 @@
-
124def parse_one(
-125    sql: str,
-126    read: DialectType = None,
-127    into: t.Optional[exp.IntoType] = None,
-128    **opts,
-129) -> Expression:
-130    """
-131    Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.
-132
-133    Args:
-134        sql: the SQL code string to parse.
-135        read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql").
-136        into: the SQLGlot Expression to parse into.
-137        **opts: other `sqlglot.parser.Parser` options.
-138
-139    Returns:
-140        The syntax tree for the first parsed statement.
-141    """
-142
-143    dialect = Dialect.get_or_raise(read)()
-144
-145    if into:
-146        result = dialect.parse_into(into, sql, **opts)
-147    else:
-148        result = dialect.parse(sql, **opts)
-149
-150    for expression in result:
-151        if not expression:
-152            raise ParseError(f"No expression was parsed from '{sql}'")
-153        return expression
-154    else:
-155        raise ParseError(f"No expression was parsed from '{sql}'")
+            
127def parse_one(
+128    sql: str,
+129    read: DialectType = None,
+130    into: t.Optional[exp.IntoType] = None,
+131    **opts,
+132) -> Expression:
+133    """
+134    Parses the given SQL string and returns a syntax tree for the first parsed SQL statement.
+135
+136    Args:
+137        sql: the SQL code string to parse.
+138        read: the SQL dialect to apply during parsing (eg. "spark", "hive", "presto", "mysql").
+139        into: the SQLGlot Expression to parse into.
+140        **opts: other `sqlglot.parser.Parser` options.
+141
+142    Returns:
+143        The syntax tree for the first parsed statement.
+144    """
+145
+146    dialect = Dialect.get_or_raise(read)()
+147
+148    if into:
+149        result = dialect.parse_into(into, sql, **opts)
+150    else:
+151        result = dialect.parse(sql, **opts)
+152
+153    for expression in result:
+154        if not expression:
+155            raise ParseError(f"No expression was parsed from '{sql}'")
+156        return expression
+157    else:
+158        raise ParseError(f"No expression was parsed from '{sql}'")
 
@@ -991,35 +994,35 @@
-
158def transpile(
-159    sql: str,
-160    read: DialectType = None,
-161    write: DialectType = None,
-162    identity: bool = True,
-163    error_level: t.Optional[ErrorLevel] = None,
-164    **opts,
-165) -> t.List[str]:
-166    """
-167    Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed
-168    to conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.
-169
-170    Args:
-171        sql: the SQL code string to transpile.
-172        read: the source dialect used to parse the input string (eg. "spark", "hive", "presto", "mysql").
-173        write: the target dialect into which the input should be transformed (eg. "spark", "hive", "presto", "mysql").
-174        identity: if set to `True` and if the target dialect is not specified the source dialect will be used as both:
-175            the source and the target dialect.
-176        error_level: the desired error level of the parser.
-177        **opts: other `sqlglot.generator.Generator` options.
-178
-179    Returns:
-180        The list of transpiled SQL statements.
-181    """
-182    write = write or read if identity else write
-183    return [
-184        Dialect.get_or_raise(write)().generate(expression, **opts)
-185        for expression in parse(sql, read, error_level=error_level)
-186    ]
+            
161def transpile(
+162    sql: str,
+163    read: DialectType = None,
+164    write: DialectType = None,
+165    identity: bool = True,
+166    error_level: t.Optional[ErrorLevel] = None,
+167    **opts,
+168) -> t.List[str]:
+169    """
+170    Parses the given SQL string in accordance with the source dialect and returns a list of SQL strings transformed
+171    to conform to the target dialect. Each string in the returned list represents a single transformed SQL statement.
+172
+173    Args:
+174        sql: the SQL code string to transpile.
+175        read: the source dialect used to parse the input string (eg. "spark", "hive", "presto", "mysql").
+176        write: the target dialect into which the input should be transformed (eg. "spark", "hive", "presto", "mysql").
+177        identity: if set to `True` and if the target dialect is not specified the source dialect will be used as both:
+178            the source and the target dialect.
+179        error_level: the desired error level of the parser.
+180        **opts: other `sqlglot.generator.Generator` options.
+181
+182    Returns:
+183        The list of transpiled SQL statements.
+184    """
+185    write = write or read if identity else write
+186    return [
+187        Dialect.get_or_raise(write)().generate(expression, **opts)
+188        for expression in parse(sql, read, error_level=error_level)
+189    ]
 
diff --git a/docs/sqlglot/dataframe/sql.html b/docs/sqlglot/dataframe/sql.html index a9a7f9d..81a145b 100644 --- a/docs/sqlglot/dataframe/sql.html +++ b/docs/sqlglot/dataframe/sql.html @@ -608,7 +608,7 @@
def - createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='140377708850400'>], List[<MagicMock id='140377708850400'>], Tuple]], schema: Optional[<MagicMock id='140377708766032'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: + createDataFrame( self, data: Sequence[Union[Dict[str, <MagicMock id='140482330521808'>], List[<MagicMock id='140482330521808'>], Tuple]], schema: Optional[<MagicMock id='140482330535600'>] = None, samplingRatio: Optional[float] = None, verifySchema: bool = False) -> sqlglot.dataframe.sql.DataFrame: @@ -1513,7 +1513,7 @@
- DataFrame( spark: <MagicMock id='140377712280432'>, expression: sqlglot.expressions.Select, branch_id: Optional[str] = None, sequence_id: Optional[str] = None, last_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>, pending_hints: Optional[List[sqlglot.expressions.Expression]] = None, output_expression_container: Optional[<MagicMock id='140377711871072'>] = None, **kwargs) + DataFrame( spark: <MagicMock id='140482335596384'>, expression: sqlglot.expressions.Select, branch_id: Optional[str] = None, sequence_id: Optional[str] = None, last_op: sqlglot.dataframe.sql.operations.Operation = <Operation.INIT: -1>, pending_hints: Optional[List[sqlglot.expressions.Expression]] = None, output_expression_container: Optional[<MagicMock id='140482335520656'>] = None, **kwargs) @@ -2288,7 +2288,7 @@ is unlikely to come up.

@operation(Operation.FROM)
def - fillna( self, value: <MagicMock id='140377707652544'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + fillna( self, value: <MagicMock id='140482330974848'>, subset: Union[str, Tuple[str, ...], List[str], NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: @@ -2357,7 +2357,7 @@ and check if it matches the type of the value provided. If not then make it null
@operation(Operation.FROM)
def - replace( self, to_replace: Union[bool, int, float, str, List, Dict], value: Union[bool, int, float, str, List, NoneType] = None, subset: Union[Collection[<MagicMock id='140377707950480'>], <MagicMock id='140377707950480'>, NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: + replace( self, to_replace: Union[bool, int, float, str, List, Dict], value: Union[bool, int, float, str, List, NoneType] = None, subset: Union[Collection[<MagicMock id='140482330012992'>], <MagicMock id='140482330012992'>, NoneType] = None) -> sqlglot.dataframe.sql.DataFrame: @@ -2562,7 +2562,7 @@ and check if it matches the type of the value provided. If not then make it null
@operation(Operation.NO_OP)
def - repartition( self, numPartitions: Union[int, <MagicMock id='140377708152048'>], *cols: <MagicMock id='140377708084144'>) -> sqlglot.dataframe.sql.DataFrame: + repartition( self, numPartitions: Union[int, <MagicMock id='140482329596336'>], *cols: <MagicMock id='140482329655376'>) -> sqlglot.dataframe.sql.DataFrame: @@ -3230,7 +3230,7 @@ and check if it matches the type of the value provided. If not then make it null
- Column( expression: Union[<MagicMock id='140377710043744'>, sqlglot.expressions.Expression, NoneType]) + Column( expression: Union[<MagicMock id='140482331597488'>, sqlglot.expressions.Expression, NoneType]) @@ -3258,7 +3258,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - ensure_col( cls, value: Union[<MagicMock id='140377708259664'>, sqlglot.expressions.Expression, NoneType]): + ensure_col( cls, value: Union[<MagicMock id='140482329703328'>, sqlglot.expressions.Expression, NoneType]): @@ -3279,7 +3279,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - ensure_cols( cls, args: List[Union[<MagicMock id='140377708547664'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: + ensure_cols( cls, args: List[Union[<MagicMock id='140482330200576'>, sqlglot.expressions.Expression]]) -> List[sqlglot.dataframe.sql.Column]: @@ -3300,7 +3300,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - invoke_anonymous_function( cls, column: Optional[<MagicMock id='140377708420048'>], func_name: str, *args: Optional[<MagicMock id='140377708523584'>]) -> sqlglot.dataframe.sql.Column: + invoke_anonymous_function( cls, column: Optional[<MagicMock id='140482329857520'>], func_name: str, *args: Optional[<MagicMock id='140482329881584'>]) -> sqlglot.dataframe.sql.Column: @@ -3327,7 +3327,7 @@ and check if it matches the type of the value provided. If not then make it null
@classmethod
def - invoke_expression_over_column( cls, column: Optional[<MagicMock id='140377708376176'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: + invoke_expression_over_column( cls, column: Optional[<MagicMock id='140482329799712'>], callable_expression: Callable, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3364,7 +3364,7 @@ and check if it matches the type of the value provided. If not then make it null
def - binary_op( self, klass: Callable, other: <MagicMock id='140377706598112'>, **kwargs) -> sqlglot.dataframe.sql.Column: + binary_op( self, klass: Callable, other: <MagicMock id='140482329769152'>, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3385,7 +3385,7 @@ and check if it matches the type of the value provided. If not then make it null
def - inverse_binary_op( self, klass: Callable, other: <MagicMock id='140377706608240'>, **kwargs) -> sqlglot.dataframe.sql.Column: + inverse_binary_op( self, klass: Callable, other: <MagicMock id='140482329759984'>, **kwargs) -> sqlglot.dataframe.sql.Column: @@ -3895,7 +3895,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - isin( self, *cols: Union[<MagicMock id='140377706743696'>, Iterable[<MagicMock id='140377706743696'>]]): + isin( self, *cols: Union[<MagicMock id='140482330346256'>, Iterable[<MagicMock id='140482330346256'>]]): @@ -3916,7 +3916,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - between( self, lowerBound: <MagicMock id='140377706814464'>, upperBound: <MagicMock id='140377706852560'>) -> sqlglot.dataframe.sql.Column: + between( self, lowerBound: <MagicMock id='140482328352688'>, upperBound: <MagicMock id='140482328407168'>) -> sqlglot.dataframe.sql.Column: @@ -3951,7 +3951,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - over( self, window: <MagicMock id='140377706910272'>) -> sqlglot.dataframe.sql.Column: + over( self, window: <MagicMock id='140482328481264'>) -> sqlglot.dataframe.sql.Column: @@ -4149,7 +4149,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

@classmethod
def - partitionBy( cls, *cols: Union[<MagicMock id='140377707221328'>, List[<MagicMock id='140377707221328'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( cls, *cols: Union[<MagicMock id='140482328980416'>, List[<MagicMock id='140482328980416'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4170,7 +4170,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

@classmethod
def - orderBy( cls, *cols: Union[<MagicMock id='140377707360368'>, List[<MagicMock id='140377707360368'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( cls, *cols: Union[<MagicMock id='140482328995408'>, List[<MagicMock id='140482328995408'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4395,7 +4395,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - partitionBy( self, *cols: Union[<MagicMock id='140377707291568'>, List[<MagicMock id='140377707291568'>]]) -> sqlglot.dataframe.sql.WindowSpec: + partitionBy( self, *cols: Union[<MagicMock id='140482328591472'>, List[<MagicMock id='140482328591472'>]]) -> sqlglot.dataframe.sql.WindowSpec: @@ -4422,7 +4422,7 @@ Sqlglot doesn't currently replicate this class so it only accepts a string

def - orderBy( self, *cols: Union[<MagicMock id='140377707161408'>, List[<MagicMock id='140377707161408'>]]) -> sqlglot.dataframe.sql.WindowSpec: + orderBy( self, *cols: Union[<MagicMock id='140482328640480'>, List[<MagicMock id='140482328640480'>]]) -> sqlglot.dataframe.sql.WindowSpec: diff --git a/docs/sqlglot/dialects.html b/docs/sqlglot/dialects.html index 5777d08..18e5dea 100644 --- a/docs/sqlglot/dialects.html +++ b/docs/sqlglot/dialects.html @@ -48,6 +48,7 @@
  • redshift
  • snowflake
  • spark
  • +
  • spark2
  • sqlite
  • starrocks
  • tableau
  • @@ -204,12 +205,13 @@ logic for some expressions; this is usually done by adding new entries to the 70from sqlglot.dialects.redshift import Redshift 71from sqlglot.dialects.snowflake import Snowflake 72from sqlglot.dialects.spark import Spark -73from sqlglot.dialects.sqlite import SQLite -74from sqlglot.dialects.starrocks import StarRocks -75from sqlglot.dialects.tableau import Tableau -76from sqlglot.dialects.teradata import Teradata -77from sqlglot.dialects.trino import Trino -78from sqlglot.dialects.tsql import TSQL +73from sqlglot.dialects.spark2 import Spark2 +74from sqlglot.dialects.sqlite import SQLite +75from sqlglot.dialects.starrocks import StarRocks +76from sqlglot.dialects.tableau import Tableau +77from sqlglot.dialects.teradata import Teradata +78from sqlglot.dialects.trino import Trino +79from sqlglot.dialects.tsql import TSQL
    diff --git a/docs/sqlglot/dialects/bigquery.html b/docs/sqlglot/dialects/bigquery.html index 761adb6..47969bb 100644 --- a/docs/sqlglot/dialects/bigquery.html +++ b/docs/sqlglot/dialects/bigquery.html @@ -69,6 +69,9 @@
  • intersect_op
  • +
  • + with_properties +
  • @@ -139,277 +142,294 @@ 39 40def _derived_table_values_to_unnest(self: generator.Generator, expression: exp.Values) -> str: 41 if not isinstance(expression.unnest().parent, exp.From): - 42 expression = t.cast(exp.Values, transforms.remove_precision_parameterized_types(expression)) - 43 return self.values_sql(expression) - 44 rows = [tuple_exp.expressions for tuple_exp in expression.find_all(exp.Tuple)] - 45 structs = [] - 46 for row in rows: - 47 aliases = [ - 48 exp.alias_(value, column_name) - 49 for value, column_name in zip(row, expression.args["alias"].args["columns"]) - 50 ] - 51 structs.append(exp.Struct(expressions=aliases)) - 52 unnest_exp = exp.Unnest(expressions=[exp.Array(expressions=structs)]) - 53 return self.unnest_sql(unnest_exp) - 54 + 42 return self.values_sql(expression) + 43 + 44 structs = [ + 45 exp.Struct( + 46 expressions=[ + 47 exp.alias_(value, column_name) + 48 for value, column_name in zip( + 49 t.expressions, expression.args["alias"].args["columns"] + 50 ) + 51 ] + 52 ) + 53 for t in expression.find_all(exp.Tuple) + 54 ] 55 - 56def _returnsproperty_sql(self: generator.Generator, expression: exp.ReturnsProperty) -> str: - 57 this = expression.this - 58 if isinstance(this, exp.Schema): - 59 this = f"{this.this} <{self.expressions(this)}>" - 60 else: - 61 this = self.sql(this) - 62 return f"RETURNS {this}" - 63 - 64 - 65def _create_sql(self: generator.Generator, expression: exp.Create) -> str: - 66 kind = expression.args["kind"] - 67 returns = expression.find(exp.ReturnsProperty) - 68 if kind.upper() == "FUNCTION" and returns and returns.args.get("is_table"): - 69 expression = expression.copy() - 70 expression.set("kind", "TABLE FUNCTION") - 71 if isinstance( - 72 expression.expression, - 73 ( - 74 exp.Subquery, - 75 exp.Literal, - 76 ), - 77 ): - 78 expression.set("expression", expression.expression.this) - 79 - 80 return self.create_sql(expression) - 81 - 82 return self.create_sql(expression) - 83 + 56 return self.unnest_sql(exp.Unnest(expressions=[exp.Array(expressions=structs)])) + 57 + 58 + 59def _returnsproperty_sql(self: generator.Generator, expression: exp.ReturnsProperty) -> str: + 60 this = expression.this + 61 if isinstance(this, exp.Schema): + 62 this = f"{this.this} <{self.expressions(this)}>" + 63 else: + 64 this = self.sql(this) + 65 return f"RETURNS {this}" + 66 + 67 + 68def _create_sql(self: generator.Generator, expression: exp.Create) -> str: + 69 kind = expression.args["kind"] + 70 returns = expression.find(exp.ReturnsProperty) + 71 if kind.upper() == "FUNCTION" and returns and returns.args.get("is_table"): + 72 expression = expression.copy() + 73 expression.set("kind", "TABLE FUNCTION") + 74 if isinstance( + 75 expression.expression, + 76 ( + 77 exp.Subquery, + 78 exp.Literal, + 79 ), + 80 ): + 81 expression.set("expression", expression.expression.this) + 82 + 83 return self.create_sql(expression) 84 - 85def _unqualify_unnest(expression: exp.Expression) -> exp.Expression: - 86 """Remove references to unnest table aliases since bigquery doesn't allow them. + 85 return self.create_sql(expression) + 86 87 - 88 These are added by the optimizer's qualify_column step. - 89 """ - 90 if isinstance(expression, exp.Select): - 91 unnests = { - 92 unnest.alias - 93 for unnest in expression.args.get("from", exp.From(expressions=[])).expressions - 94 if isinstance(unnest, exp.Unnest) and unnest.alias - 95 } - 96 - 97 if unnests: - 98 expression = expression.copy() + 88def _unqualify_unnest(expression: exp.Expression) -> exp.Expression: + 89 """Remove references to unnest table aliases since bigquery doesn't allow them. + 90 + 91 These are added by the optimizer's qualify_column step. + 92 """ + 93 if isinstance(expression, exp.Select): + 94 unnests = { + 95 unnest.alias + 96 for unnest in expression.args.get("from", exp.From(expressions=[])).expressions + 97 if isinstance(unnest, exp.Unnest) and unnest.alias + 98 } 99 -100 for select in expression.expressions: -101 for column in select.find_all(exp.Column): -102 if column.table in unnests: -103 column.set("table", None) -104 -105 return expression -106 +100 if unnests: +101 expression = expression.copy() +102 +103 for select in expression.expressions: +104 for column in select.find_all(exp.Column): +105 if column.table in unnests: +106 column.set("table", None) 107 -108class BigQuery(Dialect): -109 unnest_column_only = True -110 time_mapping = { -111 "%M": "%-M", -112 "%d": "%-d", -113 "%m": "%-m", -114 "%y": "%-y", -115 "%H": "%-H", -116 "%I": "%-I", -117 "%S": "%-S", -118 "%j": "%-j", -119 } -120 -121 class Tokenizer(tokens.Tokenizer): -122 QUOTES = [ -123 (prefix + quote, quote) if prefix else quote -124 for quote in ["'", '"', '"""', "'''"] -125 for prefix in ["", "r", "R"] -126 ] -127 COMMENTS = ["--", "#", ("/*", "*/")] -128 IDENTIFIERS = ["`"] -129 STRING_ESCAPES = ["\\"] -130 HEX_STRINGS = [("0x", ""), ("0X", "")] -131 -132 KEYWORDS = { -133 **tokens.Tokenizer.KEYWORDS, -134 "ANY TYPE": TokenType.VARIANT, -135 "BEGIN": TokenType.COMMAND, -136 "BEGIN TRANSACTION": TokenType.BEGIN, -137 "CURRENT_DATETIME": TokenType.CURRENT_DATETIME, -138 "DECLARE": TokenType.COMMAND, -139 "GEOGRAPHY": TokenType.GEOGRAPHY, -140 "FLOAT64": TokenType.DOUBLE, -141 "INT64": TokenType.BIGINT, -142 "NOT DETERMINISTIC": TokenType.VOLATILE, -143 "UNKNOWN": TokenType.NULL, -144 } -145 KEYWORDS.pop("DIV") -146 -147 class Parser(parser.Parser): -148 PREFIXED_PIVOT_COLUMNS = True -149 -150 LOG_BASE_FIRST = False -151 LOG_DEFAULTS_TO_LN = True -152 -153 FUNCTIONS = { -154 **parser.Parser.FUNCTIONS, # type: ignore -155 "DATE_TRUNC": lambda args: exp.DateTrunc( -156 unit=exp.Literal.string(seq_get(args, 1).name), # type: ignore -157 this=seq_get(args, 0), -158 ), -159 "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd), -160 "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd), -161 "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)), -162 "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list, -163 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( -164 this=seq_get(args, 0), -165 expression=seq_get(args, 1), -166 position=seq_get(args, 2), -167 occurrence=seq_get(args, 3), -168 group=exp.Literal.number(1) -169 if re.compile(str(seq_get(args, 1))).groups == 1 -170 else None, -171 ), -172 "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd), -173 "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd), -174 "DATE_SUB": parse_date_delta_with_interval(exp.DateSub), -175 "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub), -176 "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub), -177 "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub), -178 "PARSE_TIMESTAMP": lambda args: exp.StrToTime( -179 this=seq_get(args, 1), format=seq_get(args, 0) -180 ), -181 } -182 -183 FUNCTION_PARSERS = { -184 **parser.Parser.FUNCTION_PARSERS, # type: ignore -185 "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]), -186 } -187 FUNCTION_PARSERS.pop("TRIM") -188 -189 NO_PAREN_FUNCTIONS = { -190 **parser.Parser.NO_PAREN_FUNCTIONS, # type: ignore -191 TokenType.CURRENT_DATETIME: exp.CurrentDatetime, -192 } -193 -194 NESTED_TYPE_TOKENS = { -195 *parser.Parser.NESTED_TYPE_TOKENS, # type: ignore -196 TokenType.TABLE, -197 } -198 -199 ID_VAR_TOKENS = { -200 *parser.Parser.ID_VAR_TOKENS, # type: ignore -201 TokenType.VALUES, -202 } -203 -204 PROPERTY_PARSERS = { -205 **parser.Parser.PROPERTY_PARSERS, # type: ignore -206 "NOT DETERMINISTIC": lambda self: self.expression( -207 exp.StabilityProperty, this=exp.Literal.string("VOLATILE") -208 ), -209 } -210 -211 class Generator(generator.Generator): -212 EXPLICIT_UNION = True -213 INTERVAL_ALLOWS_PLURAL_FORM = False -214 JOIN_HINTS = False -215 TABLE_HINTS = False -216 LIMIT_FETCH = "LIMIT" -217 -218 TRANSFORMS = { -219 **generator.Generator.TRANSFORMS, # type: ignore -220 **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore -221 exp.ArraySize: rename_func("ARRAY_LENGTH"), -222 exp.AtTimeZone: lambda self, e: self.func( -223 "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) -224 ), -225 exp.DateAdd: _date_add_sql("DATE", "ADD"), -226 exp.DateSub: _date_add_sql("DATE", "SUB"), -227 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), -228 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), -229 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", -230 exp.DateStrToDate: datestrtodate_sql, -231 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), -232 exp.GroupConcat: rename_func("STRING_AGG"), -233 exp.ILike: no_ilike_sql, -234 exp.IntDiv: rename_func("DIV"), -235 exp.Max: max_or_greatest, -236 exp.Min: min_or_least, -237 exp.Select: transforms.preprocess([_unqualify_unnest]), -238 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", -239 exp.TimeAdd: _date_add_sql("TIME", "ADD"), -240 exp.TimeSub: _date_add_sql("TIME", "SUB"), -241 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), -242 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), -243 exp.TimeStrToTime: timestrtotime_sql, -244 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), -245 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), -246 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -247 exp.VariancePop: rename_func("VAR_POP"), -248 exp.Values: _derived_table_values_to_unnest, -249 exp.ReturnsProperty: _returnsproperty_sql, -250 exp.Create: _create_sql, -251 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), -252 exp.StabilityProperty: lambda self, e: f"DETERMINISTIC" -253 if e.name == "IMMUTABLE" -254 else "NOT DETERMINISTIC", -255 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), -256 } -257 -258 TYPE_MAPPING = { -259 **generator.Generator.TYPE_MAPPING, # type: ignore -260 exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC", -261 exp.DataType.Type.BIGINT: "INT64", -262 exp.DataType.Type.BOOLEAN: "BOOL", -263 exp.DataType.Type.CHAR: "STRING", -264 exp.DataType.Type.DECIMAL: "NUMERIC", -265 exp.DataType.Type.DOUBLE: "FLOAT64", -266 exp.DataType.Type.FLOAT: "FLOAT64", -267 exp.DataType.Type.INT: "INT64", -268 exp.DataType.Type.NCHAR: "STRING", -269 exp.DataType.Type.NVARCHAR: "STRING", -270 exp.DataType.Type.SMALLINT: "INT64", -271 exp.DataType.Type.TEXT: "STRING", -272 exp.DataType.Type.TIMESTAMP: "DATETIME", -273 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -274 exp.DataType.Type.TINYINT: "INT64", -275 exp.DataType.Type.VARCHAR: "STRING", -276 exp.DataType.Type.VARIANT: "ANY TYPE", -277 } -278 -279 PROPERTIES_LOCATION = { -280 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -281 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -282 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -283 } -284 -285 def array_sql(self, expression: exp.Array) -> str: -286 first_arg = seq_get(expression.expressions, 0) -287 if isinstance(first_arg, exp.Subqueryable): -288 return f"ARRAY{self.wrap(self.sql(first_arg))}" -289 -290 return inline_array_sql(self, expression) -291 -292 def transaction_sql(self, *_) -> str: -293 return "BEGIN TRANSACTION" -294 -295 def commit_sql(self, *_) -> str: -296 return "COMMIT TRANSACTION" -297 -298 def rollback_sql(self, *_) -> str: -299 return "ROLLBACK TRANSACTION" -300 -301 def in_unnest_op(self, expression: exp.Unnest) -> str: -302 return self.sql(expression) +108 return expression +109 +110 +111class BigQuery(Dialect): +112 unnest_column_only = True +113 time_mapping = { +114 "%M": "%-M", +115 "%d": "%-d", +116 "%m": "%-m", +117 "%y": "%-y", +118 "%H": "%-H", +119 "%I": "%-I", +120 "%S": "%-S", +121 "%j": "%-j", +122 } +123 +124 class Tokenizer(tokens.Tokenizer): +125 QUOTES = [ +126 (prefix + quote, quote) if prefix else quote +127 for quote in ["'", '"', '"""', "'''"] +128 for prefix in ["", "r", "R"] +129 ] +130 COMMENTS = ["--", "#", ("/*", "*/")] +131 IDENTIFIERS = ["`"] +132 STRING_ESCAPES = ["\\"] +133 HEX_STRINGS = [("0x", ""), ("0X", "")] +134 +135 KEYWORDS = { +136 **tokens.Tokenizer.KEYWORDS, +137 "ANY TYPE": TokenType.VARIANT, +138 "BEGIN": TokenType.COMMAND, +139 "BEGIN TRANSACTION": TokenType.BEGIN, +140 "CURRENT_DATETIME": TokenType.CURRENT_DATETIME, +141 "DECLARE": TokenType.COMMAND, +142 "GEOGRAPHY": TokenType.GEOGRAPHY, +143 "FLOAT64": TokenType.DOUBLE, +144 "INT64": TokenType.BIGINT, +145 "BYTES": TokenType.BINARY, +146 "NOT DETERMINISTIC": TokenType.VOLATILE, +147 "UNKNOWN": TokenType.NULL, +148 } +149 KEYWORDS.pop("DIV") +150 +151 class Parser(parser.Parser): +152 PREFIXED_PIVOT_COLUMNS = True +153 +154 LOG_BASE_FIRST = False +155 LOG_DEFAULTS_TO_LN = True +156 +157 FUNCTIONS = { +158 **parser.Parser.FUNCTIONS, # type: ignore +159 "DATE_TRUNC": lambda args: exp.DateTrunc( +160 unit=exp.Literal.string(seq_get(args, 1).name), # type: ignore +161 this=seq_get(args, 0), +162 ), +163 "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd), +164 "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd), +165 "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)), +166 "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list, +167 "REGEXP_EXTRACT": lambda args: exp.RegexpExtract( +168 this=seq_get(args, 0), +169 expression=seq_get(args, 1), +170 position=seq_get(args, 2), +171 occurrence=seq_get(args, 3), +172 group=exp.Literal.number(1) +173 if re.compile(str(seq_get(args, 1))).groups == 1 +174 else None, +175 ), +176 "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd), +177 "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd), +178 "DATE_SUB": parse_date_delta_with_interval(exp.DateSub), +179 "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub), +180 "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub), +181 "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub), +182 "PARSE_TIMESTAMP": lambda args: exp.StrToTime( +183 this=seq_get(args, 1), format=seq_get(args, 0) +184 ), +185 } +186 +187 FUNCTION_PARSERS = { +188 **parser.Parser.FUNCTION_PARSERS, # type: ignore +189 "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]), +190 } +191 FUNCTION_PARSERS.pop("TRIM") +192 +193 NO_PAREN_FUNCTIONS = { +194 **parser.Parser.NO_PAREN_FUNCTIONS, # type: ignore +195 TokenType.CURRENT_DATETIME: exp.CurrentDatetime, +196 } +197 +198 NESTED_TYPE_TOKENS = { +199 *parser.Parser.NESTED_TYPE_TOKENS, # type: ignore +200 TokenType.TABLE, +201 } +202 +203 ID_VAR_TOKENS = { +204 *parser.Parser.ID_VAR_TOKENS, # type: ignore +205 TokenType.VALUES, +206 } +207 +208 PROPERTY_PARSERS = { +209 **parser.Parser.PROPERTY_PARSERS, # type: ignore +210 "NOT DETERMINISTIC": lambda self: self.expression( +211 exp.StabilityProperty, this=exp.Literal.string("VOLATILE") +212 ), +213 "OPTIONS": lambda self: self._parse_with_property(), +214 } +215 +216 CONSTRAINT_PARSERS = { +217 **parser.Parser.CONSTRAINT_PARSERS, # type: ignore +218 "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()), +219 } +220 +221 class Generator(generator.Generator): +222 EXPLICIT_UNION = True +223 INTERVAL_ALLOWS_PLURAL_FORM = False +224 JOIN_HINTS = False +225 TABLE_HINTS = False +226 LIMIT_FETCH = "LIMIT" +227 +228 TRANSFORMS = { +229 **generator.Generator.TRANSFORMS, # type: ignore +230 exp.ArraySize: rename_func("ARRAY_LENGTH"), +231 exp.AtTimeZone: lambda self, e: self.func( +232 "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) +233 ), +234 exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]), +235 exp.DateAdd: _date_add_sql("DATE", "ADD"), +236 exp.DateSub: _date_add_sql("DATE", "SUB"), +237 exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), +238 exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"), +239 exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})", +240 exp.DateStrToDate: datestrtodate_sql, +241 exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")), +242 exp.GroupConcat: rename_func("STRING_AGG"), +243 exp.ILike: no_ilike_sql, +244 exp.IntDiv: rename_func("DIV"), +245 exp.Max: max_or_greatest, +246 exp.Min: min_or_least, +247 exp.Select: transforms.preprocess( +248 [_unqualify_unnest, transforms.eliminate_distinct_on] +249 ), +250 exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", +251 exp.TimeAdd: _date_add_sql("TIME", "ADD"), +252 exp.TimeSub: _date_add_sql("TIME", "SUB"), +253 exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"), +254 exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"), +255 exp.TimeStrToTime: timestrtotime_sql, +256 exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"), +257 exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"), +258 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", +259 exp.VariancePop: rename_func("VAR_POP"), +260 exp.Values: _derived_table_values_to_unnest, +261 exp.ReturnsProperty: _returnsproperty_sql, +262 exp.Create: _create_sql, +263 exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression), +264 exp.StabilityProperty: lambda self, e: f"DETERMINISTIC" +265 if e.name == "IMMUTABLE" +266 else "NOT DETERMINISTIC", +267 exp.RegexpLike: rename_func("REGEXP_CONTAINS"), +268 } +269 +270 TYPE_MAPPING = { +271 **generator.Generator.TYPE_MAPPING, # type: ignore +272 exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC", +273 exp.DataType.Type.BIGINT: "INT64", +274 exp.DataType.Type.BINARY: "BYTES", +275 exp.DataType.Type.BOOLEAN: "BOOL", +276 exp.DataType.Type.CHAR: "STRING", +277 exp.DataType.Type.DECIMAL: "NUMERIC", +278 exp.DataType.Type.DOUBLE: "FLOAT64", +279 exp.DataType.Type.FLOAT: "FLOAT64", +280 exp.DataType.Type.INT: "INT64", +281 exp.DataType.Type.NCHAR: "STRING", +282 exp.DataType.Type.NVARCHAR: "STRING", +283 exp.DataType.Type.SMALLINT: "INT64", +284 exp.DataType.Type.TEXT: "STRING", +285 exp.DataType.Type.TIMESTAMP: "DATETIME", +286 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +287 exp.DataType.Type.TINYINT: "INT64", +288 exp.DataType.Type.VARBINARY: "BYTES", +289 exp.DataType.Type.VARCHAR: "STRING", +290 exp.DataType.Type.VARIANT: "ANY TYPE", +291 } +292 +293 PROPERTIES_LOCATION = { +294 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +295 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +296 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +297 } +298 +299 def array_sql(self, expression: exp.Array) -> str: +300 first_arg = seq_get(expression.expressions, 0) +301 if isinstance(first_arg, exp.Subqueryable): +302 return f"ARRAY{self.wrap(self.sql(first_arg))}" 303 -304 def except_op(self, expression: exp.Except) -> str: -305 if not expression.args.get("distinct", False): -306 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") -307 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +304 return inline_array_sql(self, expression) +305 +306 def transaction_sql(self, *_) -> str: +307 return "BEGIN TRANSACTION" 308 -309 def intersect_op(self, expression: exp.Intersect) -> str: -310 if not expression.args.get("distinct", False): -311 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") -312 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +309 def commit_sql(self, *_) -> str: +310 return "COMMIT TRANSACTION" +311 +312 def rollback_sql(self, *_) -> str: +313 return "ROLLBACK TRANSACTION" +314 +315 def in_unnest_op(self, expression: exp.Unnest) -> str: +316 return self.sql(expression) +317 +318 def except_op(self, expression: exp.Except) -> str: +319 if not expression.args.get("distinct", False): +320 self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery") +321 return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +322 +323 def intersect_op(self, expression: exp.Intersect) -> str: +324 if not expression.args.get("distinct", False): +325 self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") +326 return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" +327 +328 def with_properties(self, properties: exp.Properties) -> str: +329 return self.properties(properties, prefix=self.seg("OPTIONS")) @@ -425,211 +445,225 @@ -
    109class BigQuery(Dialect):
    -110    unnest_column_only = True
    -111    time_mapping = {
    -112        "%M": "%-M",
    -113        "%d": "%-d",
    -114        "%m": "%-m",
    -115        "%y": "%-y",
    -116        "%H": "%-H",
    -117        "%I": "%-I",
    -118        "%S": "%-S",
    -119        "%j": "%-j",
    -120    }
    -121
    -122    class Tokenizer(tokens.Tokenizer):
    -123        QUOTES = [
    -124            (prefix + quote, quote) if prefix else quote
    -125            for quote in ["'", '"', '"""', "'''"]
    -126            for prefix in ["", "r", "R"]
    -127        ]
    -128        COMMENTS = ["--", "#", ("/*", "*/")]
    -129        IDENTIFIERS = ["`"]
    -130        STRING_ESCAPES = ["\\"]
    -131        HEX_STRINGS = [("0x", ""), ("0X", "")]
    -132
    -133        KEYWORDS = {
    -134            **tokens.Tokenizer.KEYWORDS,
    -135            "ANY TYPE": TokenType.VARIANT,
    -136            "BEGIN": TokenType.COMMAND,
    -137            "BEGIN TRANSACTION": TokenType.BEGIN,
    -138            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    -139            "DECLARE": TokenType.COMMAND,
    -140            "GEOGRAPHY": TokenType.GEOGRAPHY,
    -141            "FLOAT64": TokenType.DOUBLE,
    -142            "INT64": TokenType.BIGINT,
    -143            "NOT DETERMINISTIC": TokenType.VOLATILE,
    -144            "UNKNOWN": TokenType.NULL,
    -145        }
    -146        KEYWORDS.pop("DIV")
    -147
    -148    class Parser(parser.Parser):
    -149        PREFIXED_PIVOT_COLUMNS = True
    -150
    -151        LOG_BASE_FIRST = False
    -152        LOG_DEFAULTS_TO_LN = True
    -153
    -154        FUNCTIONS = {
    -155            **parser.Parser.FUNCTIONS,  # type: ignore
    -156            "DATE_TRUNC": lambda args: exp.DateTrunc(
    -157                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
    -158                this=seq_get(args, 0),
    -159            ),
    -160            "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd),
    -161            "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd),
    -162            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
    -163            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    -164            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    -165                this=seq_get(args, 0),
    -166                expression=seq_get(args, 1),
    -167                position=seq_get(args, 2),
    -168                occurrence=seq_get(args, 3),
    -169                group=exp.Literal.number(1)
    -170                if re.compile(str(seq_get(args, 1))).groups == 1
    -171                else None,
    -172            ),
    -173            "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd),
    -174            "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd),
    -175            "DATE_SUB": parse_date_delta_with_interval(exp.DateSub),
    -176            "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub),
    -177            "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub),
    -178            "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub),
    -179            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
    -180                this=seq_get(args, 1), format=seq_get(args, 0)
    -181            ),
    -182        }
    -183
    -184        FUNCTION_PARSERS = {
    -185            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -186            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    -187        }
    -188        FUNCTION_PARSERS.pop("TRIM")
    -189
    -190        NO_PAREN_FUNCTIONS = {
    -191            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
    -192            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    -193        }
    -194
    -195        NESTED_TYPE_TOKENS = {
    -196            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
    -197            TokenType.TABLE,
    -198        }
    -199
    -200        ID_VAR_TOKENS = {
    -201            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
    -202            TokenType.VALUES,
    -203        }
    -204
    -205        PROPERTY_PARSERS = {
    -206            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -207            "NOT DETERMINISTIC": lambda self: self.expression(
    -208                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    -209            ),
    -210        }
    -211
    -212    class Generator(generator.Generator):
    -213        EXPLICIT_UNION = True
    -214        INTERVAL_ALLOWS_PLURAL_FORM = False
    -215        JOIN_HINTS = False
    -216        TABLE_HINTS = False
    -217        LIMIT_FETCH = "LIMIT"
    -218
    -219        TRANSFORMS = {
    -220            **generator.Generator.TRANSFORMS,  # type: ignore
    -221            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
    -222            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -223            exp.AtTimeZone: lambda self, e: self.func(
    -224                "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone"))
    -225            ),
    -226            exp.DateAdd: _date_add_sql("DATE", "ADD"),
    -227            exp.DateSub: _date_add_sql("DATE", "SUB"),
    -228            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
    -229            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
    -230            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
    -231            exp.DateStrToDate: datestrtodate_sql,
    -232            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    -233            exp.GroupConcat: rename_func("STRING_AGG"),
    -234            exp.ILike: no_ilike_sql,
    -235            exp.IntDiv: rename_func("DIV"),
    -236            exp.Max: max_or_greatest,
    -237            exp.Min: min_or_least,
    -238            exp.Select: transforms.preprocess([_unqualify_unnest]),
    -239            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
    -240            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
    -241            exp.TimeSub: _date_add_sql("TIME", "SUB"),
    -242            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
    -243            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
    -244            exp.TimeStrToTime: timestrtotime_sql,
    -245            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
    -246            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
    -247            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    -248            exp.VariancePop: rename_func("VAR_POP"),
    -249            exp.Values: _derived_table_values_to_unnest,
    -250            exp.ReturnsProperty: _returnsproperty_sql,
    -251            exp.Create: _create_sql,
    -252            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
    -253            exp.StabilityProperty: lambda self, e: f"DETERMINISTIC"
    -254            if e.name == "IMMUTABLE"
    -255            else "NOT DETERMINISTIC",
    -256            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    -257        }
    -258
    -259        TYPE_MAPPING = {
    -260            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -261            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    -262            exp.DataType.Type.BIGINT: "INT64",
    -263            exp.DataType.Type.BOOLEAN: "BOOL",
    -264            exp.DataType.Type.CHAR: "STRING",
    -265            exp.DataType.Type.DECIMAL: "NUMERIC",
    -266            exp.DataType.Type.DOUBLE: "FLOAT64",
    -267            exp.DataType.Type.FLOAT: "FLOAT64",
    -268            exp.DataType.Type.INT: "INT64",
    -269            exp.DataType.Type.NCHAR: "STRING",
    -270            exp.DataType.Type.NVARCHAR: "STRING",
    -271            exp.DataType.Type.SMALLINT: "INT64",
    -272            exp.DataType.Type.TEXT: "STRING",
    -273            exp.DataType.Type.TIMESTAMP: "DATETIME",
    -274            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -275            exp.DataType.Type.TINYINT: "INT64",
    -276            exp.DataType.Type.VARCHAR: "STRING",
    -277            exp.DataType.Type.VARIANT: "ANY TYPE",
    -278        }
    -279
    -280        PROPERTIES_LOCATION = {
    -281            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -282            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -283            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -284        }
    -285
    -286        def array_sql(self, expression: exp.Array) -> str:
    -287            first_arg = seq_get(expression.expressions, 0)
    -288            if isinstance(first_arg, exp.Subqueryable):
    -289                return f"ARRAY{self.wrap(self.sql(first_arg))}"
    -290
    -291            return inline_array_sql(self, expression)
    -292
    -293        def transaction_sql(self, *_) -> str:
    -294            return "BEGIN TRANSACTION"
    -295
    -296        def commit_sql(self, *_) -> str:
    -297            return "COMMIT TRANSACTION"
    -298
    -299        def rollback_sql(self, *_) -> str:
    -300            return "ROLLBACK TRANSACTION"
    -301
    -302        def in_unnest_op(self, expression: exp.Unnest) -> str:
    -303            return self.sql(expression)
    +            
    112class BigQuery(Dialect):
    +113    unnest_column_only = True
    +114    time_mapping = {
    +115        "%M": "%-M",
    +116        "%d": "%-d",
    +117        "%m": "%-m",
    +118        "%y": "%-y",
    +119        "%H": "%-H",
    +120        "%I": "%-I",
    +121        "%S": "%-S",
    +122        "%j": "%-j",
    +123    }
    +124
    +125    class Tokenizer(tokens.Tokenizer):
    +126        QUOTES = [
    +127            (prefix + quote, quote) if prefix else quote
    +128            for quote in ["'", '"', '"""', "'''"]
    +129            for prefix in ["", "r", "R"]
    +130        ]
    +131        COMMENTS = ["--", "#", ("/*", "*/")]
    +132        IDENTIFIERS = ["`"]
    +133        STRING_ESCAPES = ["\\"]
    +134        HEX_STRINGS = [("0x", ""), ("0X", "")]
    +135
    +136        KEYWORDS = {
    +137            **tokens.Tokenizer.KEYWORDS,
    +138            "ANY TYPE": TokenType.VARIANT,
    +139            "BEGIN": TokenType.COMMAND,
    +140            "BEGIN TRANSACTION": TokenType.BEGIN,
    +141            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    +142            "DECLARE": TokenType.COMMAND,
    +143            "GEOGRAPHY": TokenType.GEOGRAPHY,
    +144            "FLOAT64": TokenType.DOUBLE,
    +145            "INT64": TokenType.BIGINT,
    +146            "BYTES": TokenType.BINARY,
    +147            "NOT DETERMINISTIC": TokenType.VOLATILE,
    +148            "UNKNOWN": TokenType.NULL,
    +149        }
    +150        KEYWORDS.pop("DIV")
    +151
    +152    class Parser(parser.Parser):
    +153        PREFIXED_PIVOT_COLUMNS = True
    +154
    +155        LOG_BASE_FIRST = False
    +156        LOG_DEFAULTS_TO_LN = True
    +157
    +158        FUNCTIONS = {
    +159            **parser.Parser.FUNCTIONS,  # type: ignore
    +160            "DATE_TRUNC": lambda args: exp.DateTrunc(
    +161                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
    +162                this=seq_get(args, 0),
    +163            ),
    +164            "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd),
    +165            "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd),
    +166            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
    +167            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    +168            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    +169                this=seq_get(args, 0),
    +170                expression=seq_get(args, 1),
    +171                position=seq_get(args, 2),
    +172                occurrence=seq_get(args, 3),
    +173                group=exp.Literal.number(1)
    +174                if re.compile(str(seq_get(args, 1))).groups == 1
    +175                else None,
    +176            ),
    +177            "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd),
    +178            "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd),
    +179            "DATE_SUB": parse_date_delta_with_interval(exp.DateSub),
    +180            "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub),
    +181            "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub),
    +182            "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub),
    +183            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
    +184                this=seq_get(args, 1), format=seq_get(args, 0)
    +185            ),
    +186        }
    +187
    +188        FUNCTION_PARSERS = {
    +189            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    +190            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    +191        }
    +192        FUNCTION_PARSERS.pop("TRIM")
    +193
    +194        NO_PAREN_FUNCTIONS = {
    +195            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
    +196            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    +197        }
    +198
    +199        NESTED_TYPE_TOKENS = {
    +200            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
    +201            TokenType.TABLE,
    +202        }
    +203
    +204        ID_VAR_TOKENS = {
    +205            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
    +206            TokenType.VALUES,
    +207        }
    +208
    +209        PROPERTY_PARSERS = {
    +210            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +211            "NOT DETERMINISTIC": lambda self: self.expression(
    +212                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    +213            ),
    +214            "OPTIONS": lambda self: self._parse_with_property(),
    +215        }
    +216
    +217        CONSTRAINT_PARSERS = {
    +218            **parser.Parser.CONSTRAINT_PARSERS,  # type: ignore
    +219            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    +220        }
    +221
    +222    class Generator(generator.Generator):
    +223        EXPLICIT_UNION = True
    +224        INTERVAL_ALLOWS_PLURAL_FORM = False
    +225        JOIN_HINTS = False
    +226        TABLE_HINTS = False
    +227        LIMIT_FETCH = "LIMIT"
    +228
    +229        TRANSFORMS = {
    +230            **generator.Generator.TRANSFORMS,  # type: ignore
    +231            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +232            exp.AtTimeZone: lambda self, e: self.func(
    +233                "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone"))
    +234            ),
    +235            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
    +236            exp.DateAdd: _date_add_sql("DATE", "ADD"),
    +237            exp.DateSub: _date_add_sql("DATE", "SUB"),
    +238            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
    +239            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
    +240            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
    +241            exp.DateStrToDate: datestrtodate_sql,
    +242            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    +243            exp.GroupConcat: rename_func("STRING_AGG"),
    +244            exp.ILike: no_ilike_sql,
    +245            exp.IntDiv: rename_func("DIV"),
    +246            exp.Max: max_or_greatest,
    +247            exp.Min: min_or_least,
    +248            exp.Select: transforms.preprocess(
    +249                [_unqualify_unnest, transforms.eliminate_distinct_on]
    +250            ),
    +251            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
    +252            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
    +253            exp.TimeSub: _date_add_sql("TIME", "SUB"),
    +254            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
    +255            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
    +256            exp.TimeStrToTime: timestrtotime_sql,
    +257            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
    +258            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
    +259            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    +260            exp.VariancePop: rename_func("VAR_POP"),
    +261            exp.Values: _derived_table_values_to_unnest,
    +262            exp.ReturnsProperty: _returnsproperty_sql,
    +263            exp.Create: _create_sql,
    +264            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
    +265            exp.StabilityProperty: lambda self, e: f"DETERMINISTIC"
    +266            if e.name == "IMMUTABLE"
    +267            else "NOT DETERMINISTIC",
    +268            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    +269        }
    +270
    +271        TYPE_MAPPING = {
    +272            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +273            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    +274            exp.DataType.Type.BIGINT: "INT64",
    +275            exp.DataType.Type.BINARY: "BYTES",
    +276            exp.DataType.Type.BOOLEAN: "BOOL",
    +277            exp.DataType.Type.CHAR: "STRING",
    +278            exp.DataType.Type.DECIMAL: "NUMERIC",
    +279            exp.DataType.Type.DOUBLE: "FLOAT64",
    +280            exp.DataType.Type.FLOAT: "FLOAT64",
    +281            exp.DataType.Type.INT: "INT64",
    +282            exp.DataType.Type.NCHAR: "STRING",
    +283            exp.DataType.Type.NVARCHAR: "STRING",
    +284            exp.DataType.Type.SMALLINT: "INT64",
    +285            exp.DataType.Type.TEXT: "STRING",
    +286            exp.DataType.Type.TIMESTAMP: "DATETIME",
    +287            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +288            exp.DataType.Type.TINYINT: "INT64",
    +289            exp.DataType.Type.VARBINARY: "BYTES",
    +290            exp.DataType.Type.VARCHAR: "STRING",
    +291            exp.DataType.Type.VARIANT: "ANY TYPE",
    +292        }
    +293
    +294        PROPERTIES_LOCATION = {
    +295            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +296            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +297            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +298        }
    +299
    +300        def array_sql(self, expression: exp.Array) -> str:
    +301            first_arg = seq_get(expression.expressions, 0)
    +302            if isinstance(first_arg, exp.Subqueryable):
    +303                return f"ARRAY{self.wrap(self.sql(first_arg))}"
     304
    -305        def except_op(self, expression: exp.Except) -> str:
    -306            if not expression.args.get("distinct", False):
    -307                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    -308            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +305            return inline_array_sql(self, expression)
    +306
    +307        def transaction_sql(self, *_) -> str:
    +308            return "BEGIN TRANSACTION"
     309
    -310        def intersect_op(self, expression: exp.Intersect) -> str:
    -311            if not expression.args.get("distinct", False):
    -312                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    -313            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +310        def commit_sql(self, *_) -> str:
    +311            return "COMMIT TRANSACTION"
    +312
    +313        def rollback_sql(self, *_) -> str:
    +314            return "ROLLBACK TRANSACTION"
    +315
    +316        def in_unnest_op(self, expression: exp.Unnest) -> str:
    +317            return self.sql(expression)
    +318
    +319        def except_op(self, expression: exp.Except) -> str:
    +320            if not expression.args.get("distinct", False):
    +321                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    +322            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +323
    +324        def intersect_op(self, expression: exp.Intersect) -> str:
    +325            if not expression.args.get("distinct", False):
    +326                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    +327            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +328
    +329        def with_properties(self, properties: exp.Properties) -> str:
    +330            return self.properties(properties, prefix=self.seg("OPTIONS"))
     
    @@ -664,31 +698,32 @@
    -
    122    class Tokenizer(tokens.Tokenizer):
    -123        QUOTES = [
    -124            (prefix + quote, quote) if prefix else quote
    -125            for quote in ["'", '"', '"""', "'''"]
    -126            for prefix in ["", "r", "R"]
    -127        ]
    -128        COMMENTS = ["--", "#", ("/*", "*/")]
    -129        IDENTIFIERS = ["`"]
    -130        STRING_ESCAPES = ["\\"]
    -131        HEX_STRINGS = [("0x", ""), ("0X", "")]
    -132
    -133        KEYWORDS = {
    -134            **tokens.Tokenizer.KEYWORDS,
    -135            "ANY TYPE": TokenType.VARIANT,
    -136            "BEGIN": TokenType.COMMAND,
    -137            "BEGIN TRANSACTION": TokenType.BEGIN,
    -138            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    -139            "DECLARE": TokenType.COMMAND,
    -140            "GEOGRAPHY": TokenType.GEOGRAPHY,
    -141            "FLOAT64": TokenType.DOUBLE,
    -142            "INT64": TokenType.BIGINT,
    -143            "NOT DETERMINISTIC": TokenType.VOLATILE,
    -144            "UNKNOWN": TokenType.NULL,
    -145        }
    -146        KEYWORDS.pop("DIV")
    +            
    125    class Tokenizer(tokens.Tokenizer):
    +126        QUOTES = [
    +127            (prefix + quote, quote) if prefix else quote
    +128            for quote in ["'", '"', '"""', "'''"]
    +129            for prefix in ["", "r", "R"]
    +130        ]
    +131        COMMENTS = ["--", "#", ("/*", "*/")]
    +132        IDENTIFIERS = ["`"]
    +133        STRING_ESCAPES = ["\\"]
    +134        HEX_STRINGS = [("0x", ""), ("0X", "")]
    +135
    +136        KEYWORDS = {
    +137            **tokens.Tokenizer.KEYWORDS,
    +138            "ANY TYPE": TokenType.VARIANT,
    +139            "BEGIN": TokenType.COMMAND,
    +140            "BEGIN TRANSACTION": TokenType.BEGIN,
    +141            "CURRENT_DATETIME": TokenType.CURRENT_DATETIME,
    +142            "DECLARE": TokenType.COMMAND,
    +143            "GEOGRAPHY": TokenType.GEOGRAPHY,
    +144            "FLOAT64": TokenType.DOUBLE,
    +145            "INT64": TokenType.BIGINT,
    +146            "BYTES": TokenType.BINARY,
    +147            "NOT DETERMINISTIC": TokenType.VOLATILE,
    +148            "UNKNOWN": TokenType.NULL,
    +149        }
    +150        KEYWORDS.pop("DIV")
     
    @@ -716,69 +751,75 @@
    -
    148    class Parser(parser.Parser):
    -149        PREFIXED_PIVOT_COLUMNS = True
    -150
    -151        LOG_BASE_FIRST = False
    -152        LOG_DEFAULTS_TO_LN = True
    -153
    -154        FUNCTIONS = {
    -155            **parser.Parser.FUNCTIONS,  # type: ignore
    -156            "DATE_TRUNC": lambda args: exp.DateTrunc(
    -157                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
    -158                this=seq_get(args, 0),
    -159            ),
    -160            "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd),
    -161            "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd),
    -162            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
    -163            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    -164            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    -165                this=seq_get(args, 0),
    -166                expression=seq_get(args, 1),
    -167                position=seq_get(args, 2),
    -168                occurrence=seq_get(args, 3),
    -169                group=exp.Literal.number(1)
    -170                if re.compile(str(seq_get(args, 1))).groups == 1
    -171                else None,
    -172            ),
    -173            "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd),
    -174            "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd),
    -175            "DATE_SUB": parse_date_delta_with_interval(exp.DateSub),
    -176            "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub),
    -177            "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub),
    -178            "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub),
    -179            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
    -180                this=seq_get(args, 1), format=seq_get(args, 0)
    -181            ),
    -182        }
    -183
    -184        FUNCTION_PARSERS = {
    -185            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -186            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    -187        }
    -188        FUNCTION_PARSERS.pop("TRIM")
    -189
    -190        NO_PAREN_FUNCTIONS = {
    -191            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
    -192            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    -193        }
    -194
    -195        NESTED_TYPE_TOKENS = {
    -196            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
    -197            TokenType.TABLE,
    -198        }
    -199
    -200        ID_VAR_TOKENS = {
    -201            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
    -202            TokenType.VALUES,
    -203        }
    -204
    -205        PROPERTY_PARSERS = {
    -206            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -207            "NOT DETERMINISTIC": lambda self: self.expression(
    -208                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    -209            ),
    -210        }
    +            
    152    class Parser(parser.Parser):
    +153        PREFIXED_PIVOT_COLUMNS = True
    +154
    +155        LOG_BASE_FIRST = False
    +156        LOG_DEFAULTS_TO_LN = True
    +157
    +158        FUNCTIONS = {
    +159            **parser.Parser.FUNCTIONS,  # type: ignore
    +160            "DATE_TRUNC": lambda args: exp.DateTrunc(
    +161                unit=exp.Literal.string(seq_get(args, 1).name),  # type: ignore
    +162                this=seq_get(args, 0),
    +163            ),
    +164            "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd),
    +165            "DATETIME_ADD": parse_date_delta_with_interval(exp.DatetimeAdd),
    +166            "DIV": lambda args: exp.IntDiv(this=seq_get(args, 0), expression=seq_get(args, 1)),
    +167            "REGEXP_CONTAINS": exp.RegexpLike.from_arg_list,
    +168            "REGEXP_EXTRACT": lambda args: exp.RegexpExtract(
    +169                this=seq_get(args, 0),
    +170                expression=seq_get(args, 1),
    +171                position=seq_get(args, 2),
    +172                occurrence=seq_get(args, 3),
    +173                group=exp.Literal.number(1)
    +174                if re.compile(str(seq_get(args, 1))).groups == 1
    +175                else None,
    +176            ),
    +177            "TIME_ADD": parse_date_delta_with_interval(exp.TimeAdd),
    +178            "TIMESTAMP_ADD": parse_date_delta_with_interval(exp.TimestampAdd),
    +179            "DATE_SUB": parse_date_delta_with_interval(exp.DateSub),
    +180            "DATETIME_SUB": parse_date_delta_with_interval(exp.DatetimeSub),
    +181            "TIME_SUB": parse_date_delta_with_interval(exp.TimeSub),
    +182            "TIMESTAMP_SUB": parse_date_delta_with_interval(exp.TimestampSub),
    +183            "PARSE_TIMESTAMP": lambda args: exp.StrToTime(
    +184                this=seq_get(args, 1), format=seq_get(args, 0)
    +185            ),
    +186        }
    +187
    +188        FUNCTION_PARSERS = {
    +189            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    +190            "ARRAY": lambda self: self.expression(exp.Array, expressions=[self._parse_statement()]),
    +191        }
    +192        FUNCTION_PARSERS.pop("TRIM")
    +193
    +194        NO_PAREN_FUNCTIONS = {
    +195            **parser.Parser.NO_PAREN_FUNCTIONS,  # type: ignore
    +196            TokenType.CURRENT_DATETIME: exp.CurrentDatetime,
    +197        }
    +198
    +199        NESTED_TYPE_TOKENS = {
    +200            *parser.Parser.NESTED_TYPE_TOKENS,  # type: ignore
    +201            TokenType.TABLE,
    +202        }
    +203
    +204        ID_VAR_TOKENS = {
    +205            *parser.Parser.ID_VAR_TOKENS,  # type: ignore
    +206            TokenType.VALUES,
    +207        }
    +208
    +209        PROPERTY_PARSERS = {
    +210            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +211            "NOT DETERMINISTIC": lambda self: self.expression(
    +212                exp.StabilityProperty, this=exp.Literal.string("VOLATILE")
    +213            ),
    +214            "OPTIONS": lambda self: self._parse_with_property(),
    +215        }
    +216
    +217        CONSTRAINT_PARSERS = {
    +218            **parser.Parser.CONSTRAINT_PARSERS,  # type: ignore
    +219            "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()),
    +220        }
     
    @@ -835,108 +876,115 @@ Default: "nulls_are_small"
    -
    212    class Generator(generator.Generator):
    -213        EXPLICIT_UNION = True
    -214        INTERVAL_ALLOWS_PLURAL_FORM = False
    -215        JOIN_HINTS = False
    -216        TABLE_HINTS = False
    -217        LIMIT_FETCH = "LIMIT"
    -218
    -219        TRANSFORMS = {
    -220            **generator.Generator.TRANSFORMS,  # type: ignore
    -221            **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES,  # type: ignore
    -222            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -223            exp.AtTimeZone: lambda self, e: self.func(
    -224                "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone"))
    -225            ),
    -226            exp.DateAdd: _date_add_sql("DATE", "ADD"),
    -227            exp.DateSub: _date_add_sql("DATE", "SUB"),
    -228            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
    -229            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
    -230            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
    -231            exp.DateStrToDate: datestrtodate_sql,
    -232            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    -233            exp.GroupConcat: rename_func("STRING_AGG"),
    -234            exp.ILike: no_ilike_sql,
    -235            exp.IntDiv: rename_func("DIV"),
    -236            exp.Max: max_or_greatest,
    -237            exp.Min: min_or_least,
    -238            exp.Select: transforms.preprocess([_unqualify_unnest]),
    -239            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
    -240            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
    -241            exp.TimeSub: _date_add_sql("TIME", "SUB"),
    -242            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
    -243            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
    -244            exp.TimeStrToTime: timestrtotime_sql,
    -245            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
    -246            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
    -247            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    -248            exp.VariancePop: rename_func("VAR_POP"),
    -249            exp.Values: _derived_table_values_to_unnest,
    -250            exp.ReturnsProperty: _returnsproperty_sql,
    -251            exp.Create: _create_sql,
    -252            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
    -253            exp.StabilityProperty: lambda self, e: f"DETERMINISTIC"
    -254            if e.name == "IMMUTABLE"
    -255            else "NOT DETERMINISTIC",
    -256            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    -257        }
    -258
    -259        TYPE_MAPPING = {
    -260            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -261            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    -262            exp.DataType.Type.BIGINT: "INT64",
    -263            exp.DataType.Type.BOOLEAN: "BOOL",
    -264            exp.DataType.Type.CHAR: "STRING",
    -265            exp.DataType.Type.DECIMAL: "NUMERIC",
    -266            exp.DataType.Type.DOUBLE: "FLOAT64",
    -267            exp.DataType.Type.FLOAT: "FLOAT64",
    -268            exp.DataType.Type.INT: "INT64",
    -269            exp.DataType.Type.NCHAR: "STRING",
    -270            exp.DataType.Type.NVARCHAR: "STRING",
    -271            exp.DataType.Type.SMALLINT: "INT64",
    -272            exp.DataType.Type.TEXT: "STRING",
    -273            exp.DataType.Type.TIMESTAMP: "DATETIME",
    -274            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -275            exp.DataType.Type.TINYINT: "INT64",
    -276            exp.DataType.Type.VARCHAR: "STRING",
    -277            exp.DataType.Type.VARIANT: "ANY TYPE",
    -278        }
    -279
    -280        PROPERTIES_LOCATION = {
    -281            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -282            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -283            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -284        }
    -285
    -286        def array_sql(self, expression: exp.Array) -> str:
    -287            first_arg = seq_get(expression.expressions, 0)
    -288            if isinstance(first_arg, exp.Subqueryable):
    -289                return f"ARRAY{self.wrap(self.sql(first_arg))}"
    -290
    -291            return inline_array_sql(self, expression)
    -292
    -293        def transaction_sql(self, *_) -> str:
    -294            return "BEGIN TRANSACTION"
    -295
    -296        def commit_sql(self, *_) -> str:
    -297            return "COMMIT TRANSACTION"
    -298
    -299        def rollback_sql(self, *_) -> str:
    -300            return "ROLLBACK TRANSACTION"
    -301
    -302        def in_unnest_op(self, expression: exp.Unnest) -> str:
    -303            return self.sql(expression)
    +            
    222    class Generator(generator.Generator):
    +223        EXPLICIT_UNION = True
    +224        INTERVAL_ALLOWS_PLURAL_FORM = False
    +225        JOIN_HINTS = False
    +226        TABLE_HINTS = False
    +227        LIMIT_FETCH = "LIMIT"
    +228
    +229        TRANSFORMS = {
    +230            **generator.Generator.TRANSFORMS,  # type: ignore
    +231            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +232            exp.AtTimeZone: lambda self, e: self.func(
    +233                "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone"))
    +234            ),
    +235            exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]),
    +236            exp.DateAdd: _date_add_sql("DATE", "ADD"),
    +237            exp.DateSub: _date_add_sql("DATE", "SUB"),
    +238            exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"),
    +239            exp.DatetimeSub: _date_add_sql("DATETIME", "SUB"),
    +240            exp.DateDiff: lambda self, e: f"DATE_DIFF({self.sql(e, 'this')}, {self.sql(e, 'expression')}, {self.sql(e.args.get('unit', 'DAY'))})",
    +241            exp.DateStrToDate: datestrtodate_sql,
    +242            exp.DateTrunc: lambda self, e: self.func("DATE_TRUNC", e.this, e.text("unit")),
    +243            exp.GroupConcat: rename_func("STRING_AGG"),
    +244            exp.ILike: no_ilike_sql,
    +245            exp.IntDiv: rename_func("DIV"),
    +246            exp.Max: max_or_greatest,
    +247            exp.Min: min_or_least,
    +248            exp.Select: transforms.preprocess(
    +249                [_unqualify_unnest, transforms.eliminate_distinct_on]
    +250            ),
    +251            exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})",
    +252            exp.TimeAdd: _date_add_sql("TIME", "ADD"),
    +253            exp.TimeSub: _date_add_sql("TIME", "SUB"),
    +254            exp.TimestampAdd: _date_add_sql("TIMESTAMP", "ADD"),
    +255            exp.TimestampSub: _date_add_sql("TIMESTAMP", "SUB"),
    +256            exp.TimeStrToTime: timestrtotime_sql,
    +257            exp.TsOrDsToDate: ts_or_ds_to_date_sql("bigquery"),
    +258            exp.TsOrDsAdd: _date_add_sql("DATE", "ADD"),
    +259            exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}",
    +260            exp.VariancePop: rename_func("VAR_POP"),
    +261            exp.Values: _derived_table_values_to_unnest,
    +262            exp.ReturnsProperty: _returnsproperty_sql,
    +263            exp.Create: _create_sql,
    +264            exp.Trim: lambda self, e: self.func(f"TRIM", e.this, e.expression),
    +265            exp.StabilityProperty: lambda self, e: f"DETERMINISTIC"
    +266            if e.name == "IMMUTABLE"
    +267            else "NOT DETERMINISTIC",
    +268            exp.RegexpLike: rename_func("REGEXP_CONTAINS"),
    +269        }
    +270
    +271        TYPE_MAPPING = {
    +272            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +273            exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC",
    +274            exp.DataType.Type.BIGINT: "INT64",
    +275            exp.DataType.Type.BINARY: "BYTES",
    +276            exp.DataType.Type.BOOLEAN: "BOOL",
    +277            exp.DataType.Type.CHAR: "STRING",
    +278            exp.DataType.Type.DECIMAL: "NUMERIC",
    +279            exp.DataType.Type.DOUBLE: "FLOAT64",
    +280            exp.DataType.Type.FLOAT: "FLOAT64",
    +281            exp.DataType.Type.INT: "INT64",
    +282            exp.DataType.Type.NCHAR: "STRING",
    +283            exp.DataType.Type.NVARCHAR: "STRING",
    +284            exp.DataType.Type.SMALLINT: "INT64",
    +285            exp.DataType.Type.TEXT: "STRING",
    +286            exp.DataType.Type.TIMESTAMP: "DATETIME",
    +287            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +288            exp.DataType.Type.TINYINT: "INT64",
    +289            exp.DataType.Type.VARBINARY: "BYTES",
    +290            exp.DataType.Type.VARCHAR: "STRING",
    +291            exp.DataType.Type.VARIANT: "ANY TYPE",
    +292        }
    +293
    +294        PROPERTIES_LOCATION = {
    +295            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +296            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +297            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +298        }
    +299
    +300        def array_sql(self, expression: exp.Array) -> str:
    +301            first_arg = seq_get(expression.expressions, 0)
    +302            if isinstance(first_arg, exp.Subqueryable):
    +303                return f"ARRAY{self.wrap(self.sql(first_arg))}"
     304
    -305        def except_op(self, expression: exp.Except) -> str:
    -306            if not expression.args.get("distinct", False):
    -307                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    -308            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +305            return inline_array_sql(self, expression)
    +306
    +307        def transaction_sql(self, *_) -> str:
    +308            return "BEGIN TRANSACTION"
     309
    -310        def intersect_op(self, expression: exp.Intersect) -> str:
    -311            if not expression.args.get("distinct", False):
    -312                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    -313            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +310        def commit_sql(self, *_) -> str:
    +311            return "COMMIT TRANSACTION"
    +312
    +313        def rollback_sql(self, *_) -> str:
    +314            return "ROLLBACK TRANSACTION"
    +315
    +316        def in_unnest_op(self, expression: exp.Unnest) -> str:
    +317            return self.sql(expression)
    +318
    +319        def except_op(self, expression: exp.Except) -> str:
    +320            if not expression.args.get("distinct", False):
    +321                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    +322            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +323
    +324        def intersect_op(self, expression: exp.Intersect) -> str:
    +325            if not expression.args.get("distinct", False):
    +326                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    +327            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +328
    +329        def with_properties(self, properties: exp.Properties) -> str:
    +330            return self.properties(properties, prefix=self.seg("OPTIONS"))
     
    @@ -995,12 +1043,12 @@ Default: True
    -
    286        def array_sql(self, expression: exp.Array) -> str:
    -287            first_arg = seq_get(expression.expressions, 0)
    -288            if isinstance(first_arg, exp.Subqueryable):
    -289                return f"ARRAY{self.wrap(self.sql(first_arg))}"
    -290
    -291            return inline_array_sql(self, expression)
    +            
    300        def array_sql(self, expression: exp.Array) -> str:
    +301            first_arg = seq_get(expression.expressions, 0)
    +302            if isinstance(first_arg, exp.Subqueryable):
    +303                return f"ARRAY{self.wrap(self.sql(first_arg))}"
    +304
    +305            return inline_array_sql(self, expression)
     
    @@ -1018,8 +1066,8 @@ Default: True
    -
    293        def transaction_sql(self, *_) -> str:
    -294            return "BEGIN TRANSACTION"
    +            
    307        def transaction_sql(self, *_) -> str:
    +308            return "BEGIN TRANSACTION"
     
    @@ -1037,8 +1085,8 @@ Default: True
    -
    296        def commit_sql(self, *_) -> str:
    -297            return "COMMIT TRANSACTION"
    +            
    310        def commit_sql(self, *_) -> str:
    +311            return "COMMIT TRANSACTION"
     
    @@ -1056,8 +1104,8 @@ Default: True
    -
    299        def rollback_sql(self, *_) -> str:
    -300            return "ROLLBACK TRANSACTION"
    +            
    313        def rollback_sql(self, *_) -> str:
    +314            return "ROLLBACK TRANSACTION"
     
    @@ -1075,8 +1123,8 @@ Default: True
    -
    302        def in_unnest_op(self, expression: exp.Unnest) -> str:
    -303            return self.sql(expression)
    +            
    316        def in_unnest_op(self, expression: exp.Unnest) -> str:
    +317            return self.sql(expression)
     
    @@ -1094,10 +1142,10 @@ Default: True
    -
    305        def except_op(self, expression: exp.Except) -> str:
    -306            if not expression.args.get("distinct", False):
    -307                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    -308            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +            
    319        def except_op(self, expression: exp.Except) -> str:
    +320            if not expression.args.get("distinct", False):
    +321                self.unsupported("EXCEPT without DISTINCT is not supported in BigQuery")
    +322            return f"EXCEPT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
     
    @@ -1115,10 +1163,29 @@ Default: True
    -
    310        def intersect_op(self, expression: exp.Intersect) -> str:
    -311            if not expression.args.get("distinct", False):
    -312                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    -313            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +            
    324        def intersect_op(self, expression: exp.Intersect) -> str:
    +325            if not expression.args.get("distinct", False):
    +326                self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery")
    +327            return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}"
    +
    + + + + +
    +
    + +
    + + def + with_properties(self, properties: sqlglot.expressions.Properties) -> str: + + + +
    + +
    329        def with_properties(self, properties: exp.Properties) -> str:
    +330            return self.properties(properties, prefix=self.seg("OPTIONS"))
     
    @@ -1179,7 +1246,6 @@ Default: True
    properties_sql
    root_properties
    properties
    -
    with_properties
    locate_properties
    property_sql
    likeproperty_sql
    @@ -1247,7 +1313,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1256,6 +1322,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/clickhouse.html b/docs/sqlglot/dialects/clickhouse.html index f1de27d..3d86e48 100644 --- a/docs/sqlglot/dialects/clickhouse.html +++ b/docs/sqlglot/dialects/clickhouse.html @@ -910,7 +910,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -919,6 +919,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/databricks.html b/docs/sqlglot/dialects/databricks.html index c6b2049..d7f8063 100644 --- a/docs/sqlglot/dialects/databricks.html +++ b/docs/sqlglot/dialects/databricks.html @@ -79,7 +79,7 @@
     1from __future__ import annotations
      2
    - 3from sqlglot import exp
    + 3from sqlglot import exp, transforms
      4from sqlglot.dialects.dialect import parse_date_delta
      5from sqlglot.dialects.spark import Spark
      6from sqlglot.dialects.tsql import generate_date_delta_with_unit_sql
    @@ -108,17 +108,22 @@
     29            exp.DateAdd: generate_date_delta_with_unit_sql,
     30            exp.DateDiff: generate_date_delta_with_unit_sql,
     31            exp.JSONExtract: lambda self, e: self.binary(e, ":"),
    -32            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -33        }
    -34        TRANSFORMS.pop(exp.Select)  # Remove the ELIMINATE_QUALIFY transformation
    -35
    -36        PARAMETER_TOKEN = "$"
    -37
    -38    class Tokenizer(Spark.Tokenizer):
    -39        SINGLE_TOKENS = {
    -40            **Spark.Tokenizer.SINGLE_TOKENS,
    -41            "$": TokenType.PARAMETER,
    -42        }
    +32            exp.Select: transforms.preprocess(
    +33                [
    +34                    transforms.eliminate_distinct_on,
    +35                    transforms.unnest_to_explode,
    +36                ]
    +37            ),
    +38            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +39        }
    +40
    +41        PARAMETER_TOKEN = "$"
    +42
    +43    class Tokenizer(Spark.Tokenizer):
    +44        SINGLE_TOKENS = {
    +45            **Spark.Tokenizer.SINGLE_TOKENS,
    +46            "$": TokenType.PARAMETER,
    +47        }
     
    @@ -156,17 +161,22 @@ 30 exp.DateAdd: generate_date_delta_with_unit_sql, 31 exp.DateDiff: generate_date_delta_with_unit_sql, 32 exp.JSONExtract: lambda self, e: self.binary(e, ":"), -33 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -34 } -35 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation -36 -37 PARAMETER_TOKEN = "$" -38 -39 class Tokenizer(Spark.Tokenizer): -40 SINGLE_TOKENS = { -41 **Spark.Tokenizer.SINGLE_TOKENS, -42 "$": TokenType.PARAMETER, -43 } +33 exp.Select: transforms.preprocess( +34 [ +35 transforms.eliminate_distinct_on, +36 transforms.unnest_to_explode, +37 ] +38 ), +39 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +40 } +41 +42 PARAMETER_TOKEN = "$" +43 +44 class Tokenizer(Spark.Tokenizer): +45 SINGLE_TOKENS = { +46 **Spark.Tokenizer.SINGLE_TOKENS, +47 "$": TokenType.PARAMETER, +48 }
    @@ -277,11 +287,16 @@ Default: "nulls_are_small" 30 exp.DateAdd: generate_date_delta_with_unit_sql, 31 exp.DateDiff: generate_date_delta_with_unit_sql, 32 exp.JSONExtract: lambda self, e: self.binary(e, ":"), -33 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -34 } -35 TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation -36 -37 PARAMETER_TOKEN = "$" +33 exp.Select: transforms.preprocess( +34 [ +35 transforms.eliminate_distinct_on, +36 transforms.unnest_to_explode, +37 ] +38 ), +39 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +40 } +41 +42 PARAMETER_TOKEN = "$" @@ -451,7 +466,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -460,6 +475,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    @@ -557,7 +573,11 @@ Default: True +
    sqlglot.dialects.hive.Hive.Generator
    @@ -574,17 +594,17 @@ Default: True
    class - Databricks.Tokenizer(sqlglot.dialects.spark.Spark.Tokenizer): + Databricks.Tokenizer(sqlglot.dialects.spark2.Spark2.Tokenizer):
    -
    39    class Tokenizer(Spark.Tokenizer):
    -40        SINGLE_TOKENS = {
    -41            **Spark.Tokenizer.SINGLE_TOKENS,
    -42            "$": TokenType.PARAMETER,
    -43        }
    +            
    44    class Tokenizer(Spark.Tokenizer):
    +45        SINGLE_TOKENS = {
    +46            **Spark.Tokenizer.SINGLE_TOKENS,
    +47            "$": TokenType.PARAMETER,
    +48        }
     
    diff --git a/docs/sqlglot/dialects/dialect.html b/docs/sqlglot/dialects/dialect.html index 16d62bb..bae1758 100644 --- a/docs/sqlglot/dialects/dialect.html +++ b/docs/sqlglot/dialects/dialect.html @@ -69,6 +69,9 @@
  • SPARK
  • +
  • + SPARK2 +
  • SQLITE
  • @@ -284,480 +287,481 @@
    28 REDSHIFT = "redshift" 29 SNOWFLAKE = "snowflake" 30 SPARK = "spark" - 31 SQLITE = "sqlite" - 32 STARROCKS = "starrocks" - 33 TABLEAU = "tableau" - 34 TRINO = "trino" - 35 TSQL = "tsql" - 36 DATABRICKS = "databricks" - 37 DRILL = "drill" - 38 TERADATA = "teradata" - 39 + 31 SPARK2 = "spark2" + 32 SQLITE = "sqlite" + 33 STARROCKS = "starrocks" + 34 TABLEAU = "tableau" + 35 TRINO = "trino" + 36 TSQL = "tsql" + 37 DATABRICKS = "databricks" + 38 DRILL = "drill" + 39 TERADATA = "teradata" 40 - 41class _Dialect(type): - 42 classes: t.Dict[str, t.Type[Dialect]] = {} - 43 - 44 @classmethod - 45 def __getitem__(cls, key: str) -> t.Type[Dialect]: - 46 return cls.classes[key] - 47 - 48 @classmethod - 49 def get( - 50 cls, key: str, default: t.Optional[t.Type[Dialect]] = None - 51 ) -> t.Optional[t.Type[Dialect]]: - 52 return cls.classes.get(key, default) - 53 - 54 def __new__(cls, clsname, bases, attrs): - 55 klass = super().__new__(cls, clsname, bases, attrs) - 56 enum = Dialects.__members__.get(clsname.upper()) - 57 cls.classes[enum.value if enum is not None else clsname.lower()] = klass - 58 - 59 klass.time_trie = new_trie(klass.time_mapping) - 60 klass.inverse_time_mapping = {v: k for k, v in klass.time_mapping.items()} - 61 klass.inverse_time_trie = new_trie(klass.inverse_time_mapping) - 62 - 63 klass.tokenizer_class = getattr(klass, "Tokenizer", Tokenizer) - 64 klass.parser_class = getattr(klass, "Parser", Parser) - 65 klass.generator_class = getattr(klass, "Generator", Generator) - 66 - 67 klass.quote_start, klass.quote_end = list(klass.tokenizer_class._QUOTES.items())[0] - 68 klass.identifier_start, klass.identifier_end = list( - 69 klass.tokenizer_class._IDENTIFIERS.items() - 70 )[0] - 71 - 72 if ( - 73 klass.tokenizer_class._BIT_STRINGS - 74 and exp.BitString not in klass.generator_class.TRANSFORMS - 75 ): - 76 bs_start, bs_end = list(klass.tokenizer_class._BIT_STRINGS.items())[0] - 77 klass.generator_class.TRANSFORMS[ - 78 exp.BitString - 79 ] = lambda self, e: f"{bs_start}{int(self.sql(e, 'this')):b}{bs_end}" - 80 if ( - 81 klass.tokenizer_class._HEX_STRINGS - 82 and exp.HexString not in klass.generator_class.TRANSFORMS - 83 ): - 84 hs_start, hs_end = list(klass.tokenizer_class._HEX_STRINGS.items())[0] - 85 klass.generator_class.TRANSFORMS[ - 86 exp.HexString - 87 ] = lambda self, e: f"{hs_start}{int(self.sql(e, 'this')):X}{hs_end}" - 88 if ( - 89 klass.tokenizer_class._BYTE_STRINGS - 90 and exp.ByteString not in klass.generator_class.TRANSFORMS - 91 ): - 92 be_start, be_end = list(klass.tokenizer_class._BYTE_STRINGS.items())[0] - 93 klass.generator_class.TRANSFORMS[ - 94 exp.ByteString - 95 ] = lambda self, e: f"{be_start}{self.sql(e, 'this')}{be_end}" - 96 - 97 return klass - 98 + 41 + 42class _Dialect(type): + 43 classes: t.Dict[str, t.Type[Dialect]] = {} + 44 + 45 @classmethod + 46 def __getitem__(cls, key: str) -> t.Type[Dialect]: + 47 return cls.classes[key] + 48 + 49 @classmethod + 50 def get( + 51 cls, key: str, default: t.Optional[t.Type[Dialect]] = None + 52 ) -> t.Optional[t.Type[Dialect]]: + 53 return cls.classes.get(key, default) + 54 + 55 def __new__(cls, clsname, bases, attrs): + 56 klass = super().__new__(cls, clsname, bases, attrs) + 57 enum = Dialects.__members__.get(clsname.upper()) + 58 cls.classes[enum.value if enum is not None else clsname.lower()] = klass + 59 + 60 klass.time_trie = new_trie(klass.time_mapping) + 61 klass.inverse_time_mapping = {v: k for k, v in klass.time_mapping.items()} + 62 klass.inverse_time_trie = new_trie(klass.inverse_time_mapping) + 63 + 64 klass.tokenizer_class = getattr(klass, "Tokenizer", Tokenizer) + 65 klass.parser_class = getattr(klass, "Parser", Parser) + 66 klass.generator_class = getattr(klass, "Generator", Generator) + 67 + 68 klass.quote_start, klass.quote_end = list(klass.tokenizer_class._QUOTES.items())[0] + 69 klass.identifier_start, klass.identifier_end = list( + 70 klass.tokenizer_class._IDENTIFIERS.items() + 71 )[0] + 72 + 73 if ( + 74 klass.tokenizer_class._BIT_STRINGS + 75 and exp.BitString not in klass.generator_class.TRANSFORMS + 76 ): + 77 bs_start, bs_end = list(klass.tokenizer_class._BIT_STRINGS.items())[0] + 78 klass.generator_class.TRANSFORMS[ + 79 exp.BitString + 80 ] = lambda self, e: f"{bs_start}{int(self.sql(e, 'this')):b}{bs_end}" + 81 if ( + 82 klass.tokenizer_class._HEX_STRINGS + 83 and exp.HexString not in klass.generator_class.TRANSFORMS + 84 ): + 85 hs_start, hs_end = list(klass.tokenizer_class._HEX_STRINGS.items())[0] + 86 klass.generator_class.TRANSFORMS[ + 87 exp.HexString + 88 ] = lambda self, e: f"{hs_start}{int(self.sql(e, 'this')):X}{hs_end}" + 89 if ( + 90 klass.tokenizer_class._BYTE_STRINGS + 91 and exp.ByteString not in klass.generator_class.TRANSFORMS + 92 ): + 93 be_start, be_end = list(klass.tokenizer_class._BYTE_STRINGS.items())[0] + 94 klass.generator_class.TRANSFORMS[ + 95 exp.ByteString + 96 ] = lambda self, e: f"{be_start}{self.sql(e, 'this')}{be_end}" + 97 + 98 return klass 99 -100class Dialect(metaclass=_Dialect): -101 index_offset = 0 -102 unnest_column_only = False -103 alias_post_tablesample = False -104 normalize_functions: t.Optional[str] = "upper" -105 null_ordering = "nulls_are_small" -106 -107 date_format = "'%Y-%m-%d'" -108 dateint_format = "'%Y%m%d'" -109 time_format = "'%Y-%m-%d %H:%M:%S'" -110 time_mapping: t.Dict[str, str] = {} -111 -112 # autofilled -113 quote_start = None -114 quote_end = None -115 identifier_start = None -116 identifier_end = None -117 -118 time_trie = None -119 inverse_time_mapping = None -120 inverse_time_trie = None -121 tokenizer_class = None -122 parser_class = None -123 generator_class = None -124 -125 @classmethod -126 def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]: -127 if not dialect: -128 return cls -129 if isinstance(dialect, _Dialect): -130 return dialect -131 if isinstance(dialect, Dialect): -132 return dialect.__class__ -133 -134 result = cls.get(dialect) -135 if not result: -136 raise ValueError(f"Unknown dialect '{dialect}'") -137 -138 return result -139 -140 @classmethod -141 def format_time( -142 cls, expression: t.Optional[str | exp.Expression] -143 ) -> t.Optional[exp.Expression]: -144 if isinstance(expression, str): -145 return exp.Literal.string( -146 format_time( -147 expression[1:-1], # the time formats are quoted -148 cls.time_mapping, -149 cls.time_trie, -150 ) -151 ) -152 if expression and expression.is_string: -153 return exp.Literal.string( -154 format_time( -155 expression.this, -156 cls.time_mapping, -157 cls.time_trie, -158 ) -159 ) -160 return expression -161 -162 def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]: -163 return self.parser(**opts).parse(self.tokenize(sql), sql) -164 -165 def parse_into( -166 self, expression_type: exp.IntoType, sql: str, **opts -167 ) -> t.List[t.Optional[exp.Expression]]: -168 return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql) -169 -170 def generate(self, expression: t.Optional[exp.Expression], **opts) -> str: -171 return self.generator(**opts).generate(expression) -172 -173 def transpile(self, sql: str, **opts) -> t.List[str]: -174 return [self.generate(expression, **opts) for expression in self.parse(sql)] -175 -176 def tokenize(self, sql: str) -> t.List[Token]: -177 return self.tokenizer.tokenize(sql) -178 -179 @property -180 def tokenizer(self) -> Tokenizer: -181 if not hasattr(self, "_tokenizer"): -182 self._tokenizer = self.tokenizer_class() # type: ignore -183 return self._tokenizer -184 -185 def parser(self, **opts) -> Parser: -186 return self.parser_class( # type: ignore -187 **{ -188 "index_offset": self.index_offset, -189 "unnest_column_only": self.unnest_column_only, -190 "alias_post_tablesample": self.alias_post_tablesample, -191 "null_ordering": self.null_ordering, -192 **opts, -193 }, -194 ) -195 -196 def generator(self, **opts) -> Generator: -197 return self.generator_class( # type: ignore -198 **{ -199 "quote_start": self.quote_start, -200 "quote_end": self.quote_end, -201 "identifier_start": self.identifier_start, -202 "identifier_end": self.identifier_end, -203 "string_escape": self.tokenizer_class.STRING_ESCAPES[0], -204 "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0], -205 "index_offset": self.index_offset, -206 "time_mapping": self.inverse_time_mapping, -207 "time_trie": self.inverse_time_trie, -208 "unnest_column_only": self.unnest_column_only, -209 "alias_post_tablesample": self.alias_post_tablesample, -210 "normalize_functions": self.normalize_functions, -211 "null_ordering": self.null_ordering, -212 **opts, -213 } -214 ) -215 +100 +101class Dialect(metaclass=_Dialect): +102 index_offset = 0 +103 unnest_column_only = False +104 alias_post_tablesample = False +105 normalize_functions: t.Optional[str] = "upper" +106 null_ordering = "nulls_are_small" +107 +108 date_format = "'%Y-%m-%d'" +109 dateint_format = "'%Y%m%d'" +110 time_format = "'%Y-%m-%d %H:%M:%S'" +111 time_mapping: t.Dict[str, str] = {} +112 +113 # autofilled +114 quote_start = None +115 quote_end = None +116 identifier_start = None +117 identifier_end = None +118 +119 time_trie = None +120 inverse_time_mapping = None +121 inverse_time_trie = None +122 tokenizer_class = None +123 parser_class = None +124 generator_class = None +125 +126 @classmethod +127 def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]: +128 if not dialect: +129 return cls +130 if isinstance(dialect, _Dialect): +131 return dialect +132 if isinstance(dialect, Dialect): +133 return dialect.__class__ +134 +135 result = cls.get(dialect) +136 if not result: +137 raise ValueError(f"Unknown dialect '{dialect}'") +138 +139 return result +140 +141 @classmethod +142 def format_time( +143 cls, expression: t.Optional[str | exp.Expression] +144 ) -> t.Optional[exp.Expression]: +145 if isinstance(expression, str): +146 return exp.Literal.string( +147 format_time( +148 expression[1:-1], # the time formats are quoted +149 cls.time_mapping, +150 cls.time_trie, +151 ) +152 ) +153 if expression and expression.is_string: +154 return exp.Literal.string( +155 format_time( +156 expression.this, +157 cls.time_mapping, +158 cls.time_trie, +159 ) +160 ) +161 return expression +162 +163 def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]: +164 return self.parser(**opts).parse(self.tokenize(sql), sql) +165 +166 def parse_into( +167 self, expression_type: exp.IntoType, sql: str, **opts +168 ) -> t.List[t.Optional[exp.Expression]]: +169 return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql) +170 +171 def generate(self, expression: t.Optional[exp.Expression], **opts) -> str: +172 return self.generator(**opts).generate(expression) +173 +174 def transpile(self, sql: str, **opts) -> t.List[str]: +175 return [self.generate(expression, **opts) for expression in self.parse(sql)] +176 +177 def tokenize(self, sql: str) -> t.List[Token]: +178 return self.tokenizer.tokenize(sql) +179 +180 @property +181 def tokenizer(self) -> Tokenizer: +182 if not hasattr(self, "_tokenizer"): +183 self._tokenizer = self.tokenizer_class() # type: ignore +184 return self._tokenizer +185 +186 def parser(self, **opts) -> Parser: +187 return self.parser_class( # type: ignore +188 **{ +189 "index_offset": self.index_offset, +190 "unnest_column_only": self.unnest_column_only, +191 "alias_post_tablesample": self.alias_post_tablesample, +192 "null_ordering": self.null_ordering, +193 **opts, +194 }, +195 ) +196 +197 def generator(self, **opts) -> Generator: +198 return self.generator_class( # type: ignore +199 **{ +200 "quote_start": self.quote_start, +201 "quote_end": self.quote_end, +202 "identifier_start": self.identifier_start, +203 "identifier_end": self.identifier_end, +204 "string_escape": self.tokenizer_class.STRING_ESCAPES[0], +205 "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0], +206 "index_offset": self.index_offset, +207 "time_mapping": self.inverse_time_mapping, +208 "time_trie": self.inverse_time_trie, +209 "unnest_column_only": self.unnest_column_only, +210 "alias_post_tablesample": self.alias_post_tablesample, +211 "normalize_functions": self.normalize_functions, +212 "null_ordering": self.null_ordering, +213 **opts, +214 } +215 ) 216 -217DialectType = t.Union[str, Dialect, t.Type[Dialect], None] -218 +217 +218DialectType = t.Union[str, Dialect, t.Type[Dialect], None] 219 -220def rename_func(name: str) -> t.Callable[[Generator, exp.Expression], str]: -221 return lambda self, expression: self.func(name, *flatten(expression.args.values())) -222 +220 +221def rename_func(name: str) -> t.Callable[[Generator, exp.Expression], str]: +222 return lambda self, expression: self.func(name, *flatten(expression.args.values())) 223 -224def approx_count_distinct_sql(self: Generator, expression: exp.ApproxDistinct) -> str: -225 if expression.args.get("accuracy"): -226 self.unsupported("APPROX_COUNT_DISTINCT does not support accuracy") -227 return self.func("APPROX_COUNT_DISTINCT", expression.this) -228 +224 +225def approx_count_distinct_sql(self: Generator, expression: exp.ApproxDistinct) -> str: +226 if expression.args.get("accuracy"): +227 self.unsupported("APPROX_COUNT_DISTINCT does not support accuracy") +228 return self.func("APPROX_COUNT_DISTINCT", expression.this) 229 -230def if_sql(self: Generator, expression: exp.If) -> str: -231 return self.func( -232 "IF", expression.this, expression.args.get("true"), expression.args.get("false") -233 ) -234 +230 +231def if_sql(self: Generator, expression: exp.If) -> str: +232 return self.func( +233 "IF", expression.this, expression.args.get("true"), expression.args.get("false") +234 ) 235 -236def arrow_json_extract_sql(self: Generator, expression: exp.JSONExtract | exp.JSONBExtract) -> str: -237 return self.binary(expression, "->") -238 +236 +237def arrow_json_extract_sql(self: Generator, expression: exp.JSONExtract | exp.JSONBExtract) -> str: +238 return self.binary(expression, "->") 239 -240def arrow_json_extract_scalar_sql( -241 self: Generator, expression: exp.JSONExtractScalar | exp.JSONBExtractScalar -242) -> str: -243 return self.binary(expression, "->>") -244 +240 +241def arrow_json_extract_scalar_sql( +242 self: Generator, expression: exp.JSONExtractScalar | exp.JSONBExtractScalar +243) -> str: +244 return self.binary(expression, "->>") 245 -246def inline_array_sql(self: Generator, expression: exp.Array) -> str: -247 return f"[{self.expressions(expression)}]" -248 +246 +247def inline_array_sql(self: Generator, expression: exp.Array) -> str: +248 return f"[{self.expressions(expression)}]" 249 -250def no_ilike_sql(self: Generator, expression: exp.ILike) -> str: -251 return self.like_sql( -252 exp.Like( -253 this=exp.Lower(this=expression.this), -254 expression=expression.args["expression"], -255 ) -256 ) -257 +250 +251def no_ilike_sql(self: Generator, expression: exp.ILike) -> str: +252 return self.like_sql( +253 exp.Like( +254 this=exp.Lower(this=expression.this), +255 expression=expression.args["expression"], +256 ) +257 ) 258 -259def no_paren_current_date_sql(self: Generator, expression: exp.CurrentDate) -> str: -260 zone = self.sql(expression, "this") -261 return f"CURRENT_DATE AT TIME ZONE {zone}" if zone else "CURRENT_DATE" -262 +259 +260def no_paren_current_date_sql(self: Generator, expression: exp.CurrentDate) -> str: +261 zone = self.sql(expression, "this") +262 return f"CURRENT_DATE AT TIME ZONE {zone}" if zone else "CURRENT_DATE" 263 -264def no_recursive_cte_sql(self: Generator, expression: exp.With) -> str: -265 if expression.args.get("recursive"): -266 self.unsupported("Recursive CTEs are unsupported") -267 expression.args["recursive"] = False -268 return self.with_sql(expression) -269 +264 +265def no_recursive_cte_sql(self: Generator, expression: exp.With) -> str: +266 if expression.args.get("recursive"): +267 self.unsupported("Recursive CTEs are unsupported") +268 expression.args["recursive"] = False +269 return self.with_sql(expression) 270 -271def no_safe_divide_sql(self: Generator, expression: exp.SafeDivide) -> str: -272 n = self.sql(expression, "this") -273 d = self.sql(expression, "expression") -274 return f"IF({d} <> 0, {n} / {d}, NULL)" -275 +271 +272def no_safe_divide_sql(self: Generator, expression: exp.SafeDivide) -> str: +273 n = self.sql(expression, "this") +274 d = self.sql(expression, "expression") +275 return f"IF({d} <> 0, {n} / {d}, NULL)" 276 -277def no_tablesample_sql(self: Generator, expression: exp.TableSample) -> str: -278 self.unsupported("TABLESAMPLE unsupported") -279 return self.sql(expression.this) -280 +277 +278def no_tablesample_sql(self: Generator, expression: exp.TableSample) -> str: +279 self.unsupported("TABLESAMPLE unsupported") +280 return self.sql(expression.this) 281 -282def no_pivot_sql(self: Generator, expression: exp.Pivot) -> str: -283 self.unsupported("PIVOT unsupported") -284 return self.sql(expression) -285 +282 +283def no_pivot_sql(self: Generator, expression: exp.Pivot) -> str: +284 self.unsupported("PIVOT unsupported") +285 return self.sql(expression) 286 -287def no_trycast_sql(self: Generator, expression: exp.TryCast) -> str: -288 return self.cast_sql(expression) -289 +287 +288def no_trycast_sql(self: Generator, expression: exp.TryCast) -> str: +289 return self.cast_sql(expression) 290 -291def no_properties_sql(self: Generator, expression: exp.Properties) -> str: -292 self.unsupported("Properties unsupported") -293 return "" -294 +291 +292def no_properties_sql(self: Generator, expression: exp.Properties) -> str: +293 self.unsupported("Properties unsupported") +294 return "" 295 -296def no_comment_column_constraint_sql( -297 self: Generator, expression: exp.CommentColumnConstraint -298) -> str: -299 self.unsupported("CommentColumnConstraint unsupported") -300 return "" -301 +296 +297def no_comment_column_constraint_sql( +298 self: Generator, expression: exp.CommentColumnConstraint +299) -> str: +300 self.unsupported("CommentColumnConstraint unsupported") +301 return "" 302 -303def str_position_sql(self: Generator, expression: exp.StrPosition) -> str: -304 this = self.sql(expression, "this") -305 substr = self.sql(expression, "substr") -306 position = self.sql(expression, "position") -307 if position: -308 return f"STRPOS(SUBSTR({this}, {position}), {substr}) + {position} - 1" -309 return f"STRPOS({this}, {substr})" -310 +303 +304def str_position_sql(self: Generator, expression: exp.StrPosition) -> str: +305 this = self.sql(expression, "this") +306 substr = self.sql(expression, "substr") +307 position = self.sql(expression, "position") +308 if position: +309 return f"STRPOS(SUBSTR({this}, {position}), {substr}) + {position} - 1" +310 return f"STRPOS({this}, {substr})" 311 -312def struct_extract_sql(self: Generator, expression: exp.StructExtract) -> str: -313 this = self.sql(expression, "this") -314 struct_key = self.sql(exp.Identifier(this=expression.expression, quoted=True)) -315 return f"{this}.{struct_key}" -316 +312 +313def struct_extract_sql(self: Generator, expression: exp.StructExtract) -> str: +314 this = self.sql(expression, "this") +315 struct_key = self.sql(exp.Identifier(this=expression.expression, quoted=True)) +316 return f"{this}.{struct_key}" 317 -318def var_map_sql( -319 self: Generator, expression: exp.Map | exp.VarMap, map_func_name: str = "MAP" -320) -> str: -321 keys = expression.args["keys"] -322 values = expression.args["values"] -323 -324 if not isinstance(keys, exp.Array) or not isinstance(values, exp.Array): -325 self.unsupported("Cannot convert array columns into map.") -326 return self.func(map_func_name, keys, values) -327 -328 args = [] -329 for key, value in zip(keys.expressions, values.expressions): -330 args.append(self.sql(key)) -331 args.append(self.sql(value)) -332 return self.func(map_func_name, *args) -333 +318 +319def var_map_sql( +320 self: Generator, expression: exp.Map | exp.VarMap, map_func_name: str = "MAP" +321) -> str: +322 keys = expression.args["keys"] +323 values = expression.args["values"] +324 +325 if not isinstance(keys, exp.Array) or not isinstance(values, exp.Array): +326 self.unsupported("Cannot convert array columns into map.") +327 return self.func(map_func_name, keys, values) +328 +329 args = [] +330 for key, value in zip(keys.expressions, values.expressions): +331 args.append(self.sql(key)) +332 args.append(self.sql(value)) +333 return self.func(map_func_name, *args) 334 -335def format_time_lambda( -336 exp_class: t.Type[E], dialect: str, default: t.Optional[bool | str] = None -337) -> t.Callable[[t.Sequence], E]: -338 """Helper used for time expressions. -339 -340 Args: -341 exp_class: the expression class to instantiate. -342 dialect: target sql dialect. -343 default: the default format, True being time. -344 -345 Returns: -346 A callable that can be used to return the appropriately formatted time expression. -347 """ -348 -349 def _format_time(args: t.Sequence): -350 return exp_class( -351 this=seq_get(args, 0), -352 format=Dialect[dialect].format_time( -353 seq_get(args, 1) -354 or (Dialect[dialect].time_format if default is True else default or None) -355 ), -356 ) -357 -358 return _format_time -359 +335 +336def format_time_lambda( +337 exp_class: t.Type[E], dialect: str, default: t.Optional[bool | str] = None +338) -> t.Callable[[t.Sequence], E]: +339 """Helper used for time expressions. +340 +341 Args: +342 exp_class: the expression class to instantiate. +343 dialect: target sql dialect. +344 default: the default format, True being time. +345 +346 Returns: +347 A callable that can be used to return the appropriately formatted time expression. +348 """ +349 +350 def _format_time(args: t.Sequence): +351 return exp_class( +352 this=seq_get(args, 0), +353 format=Dialect[dialect].format_time( +354 seq_get(args, 1) +355 or (Dialect[dialect].time_format if default is True else default or None) +356 ), +357 ) +358 +359 return _format_time 360 -361def create_with_partitions_sql(self: Generator, expression: exp.Create) -> str: -362 """ -363 In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the -364 PARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding -365 columns are removed from the create statement. -366 """ -367 has_schema = isinstance(expression.this, exp.Schema) -368 is_partitionable = expression.args.get("kind") in ("TABLE", "VIEW") -369 -370 if has_schema and is_partitionable: -371 expression = expression.copy() -372 prop = expression.find(exp.PartitionedByProperty) -373 if prop and prop.this and not isinstance(prop.this, exp.Schema): -374 schema = expression.this -375 columns = {v.name.upper() for v in prop.this.expressions} -376 partitions = [col for col in schema.expressions if col.name.upper() in columns] -377 schema.set("expressions", [e for e in schema.expressions if e not in partitions]) -378 prop.replace(exp.PartitionedByProperty(this=exp.Schema(expressions=partitions))) -379 expression.set("this", schema) -380 -381 return self.create_sql(expression) -382 +361 +362def create_with_partitions_sql(self: Generator, expression: exp.Create) -> str: +363 """ +364 In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the +365 PARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding +366 columns are removed from the create statement. +367 """ +368 has_schema = isinstance(expression.this, exp.Schema) +369 is_partitionable = expression.args.get("kind") in ("TABLE", "VIEW") +370 +371 if has_schema and is_partitionable: +372 expression = expression.copy() +373 prop = expression.find(exp.PartitionedByProperty) +374 if prop and prop.this and not isinstance(prop.this, exp.Schema): +375 schema = expression.this +376 columns = {v.name.upper() for v in prop.this.expressions} +377 partitions = [col for col in schema.expressions if col.name.upper() in columns] +378 schema.set("expressions", [e for e in schema.expressions if e not in partitions]) +379 prop.replace(exp.PartitionedByProperty(this=exp.Schema(expressions=partitions))) +380 expression.set("this", schema) +381 +382 return self.create_sql(expression) 383 -384def parse_date_delta( -385 exp_class: t.Type[E], unit_mapping: t.Optional[t.Dict[str, str]] = None -386) -> t.Callable[[t.Sequence], E]: -387 def inner_func(args: t.Sequence) -> E: -388 unit_based = len(args) == 3 -389 this = args[2] if unit_based else seq_get(args, 0) -390 unit = args[0] if unit_based else exp.Literal.string("DAY") -391 unit = unit_mapping.get(unit.name.lower(), unit) if unit_mapping else unit -392 return exp_class(this=this, expression=seq_get(args, 1), unit=unit) -393 -394 return inner_func -395 +384 +385def parse_date_delta( +386 exp_class: t.Type[E], unit_mapping: t.Optional[t.Dict[str, str]] = None +387) -> t.Callable[[t.Sequence], E]: +388 def inner_func(args: t.Sequence) -> E: +389 unit_based = len(args) == 3 +390 this = args[2] if unit_based else seq_get(args, 0) +391 unit = args[0] if unit_based else exp.Literal.string("DAY") +392 unit = unit_mapping.get(unit.name.lower(), unit) if unit_mapping else unit +393 return exp_class(this=this, expression=seq_get(args, 1), unit=unit) +394 +395 return inner_func 396 -397def parse_date_delta_with_interval( -398 expression_class: t.Type[E], -399) -> t.Callable[[t.Sequence], t.Optional[E]]: -400 def func(args: t.Sequence) -> t.Optional[E]: -401 if len(args) < 2: -402 return None -403 -404 interval = args[1] -405 expression = interval.this -406 if expression and expression.is_string: -407 expression = exp.Literal.number(expression.this) -408 -409 return expression_class( -410 this=args[0], -411 expression=expression, -412 unit=exp.Literal.string(interval.text("unit")), -413 ) -414 -415 return func -416 +397 +398def parse_date_delta_with_interval( +399 expression_class: t.Type[E], +400) -> t.Callable[[t.Sequence], t.Optional[E]]: +401 def func(args: t.Sequence) -> t.Optional[E]: +402 if len(args) < 2: +403 return None +404 +405 interval = args[1] +406 expression = interval.this +407 if expression and expression.is_string: +408 expression = exp.Literal.number(expression.this) +409 +410 return expression_class( +411 this=args[0], +412 expression=expression, +413 unit=exp.Literal.string(interval.text("unit")), +414 ) +415 +416 return func 417 -418def date_trunc_to_time(args: t.Sequence) -> exp.DateTrunc | exp.TimestampTrunc: -419 unit = seq_get(args, 0) -420 this = seq_get(args, 1) -421 -422 if isinstance(this, exp.Cast) and this.is_type(exp.DataType.Type.DATE): -423 return exp.DateTrunc(unit=unit, this=this) -424 return exp.TimestampTrunc(this=this, unit=unit) -425 +418 +419def date_trunc_to_time(args: t.Sequence) -> exp.DateTrunc | exp.TimestampTrunc: +420 unit = seq_get(args, 0) +421 this = seq_get(args, 1) +422 +423 if isinstance(this, exp.Cast) and this.is_type(exp.DataType.Type.DATE): +424 return exp.DateTrunc(unit=unit, this=this) +425 return exp.TimestampTrunc(this=this, unit=unit) 426 -427def timestamptrunc_sql(self: Generator, expression: exp.TimestampTrunc) -> str: -428 return self.func( -429 "DATE_TRUNC", exp.Literal.string(expression.text("unit") or "day"), expression.this -430 ) -431 +427 +428def timestamptrunc_sql(self: Generator, expression: exp.TimestampTrunc) -> str: +429 return self.func( +430 "DATE_TRUNC", exp.Literal.string(expression.text("unit") or "day"), expression.this +431 ) 432 -433def locate_to_strposition(args: t.Sequence) -> exp.Expression: -434 return exp.StrPosition( -435 this=seq_get(args, 1), -436 substr=seq_get(args, 0), -437 position=seq_get(args, 2), -438 ) -439 +433 +434def locate_to_strposition(args: t.Sequence) -> exp.Expression: +435 return exp.StrPosition( +436 this=seq_get(args, 1), +437 substr=seq_get(args, 0), +438 position=seq_get(args, 2), +439 ) 440 -441def strposition_to_locate_sql(self: Generator, expression: exp.StrPosition) -> str: -442 return self.func( -443 "LOCATE", expression.args.get("substr"), expression.this, expression.args.get("position") -444 ) -445 +441 +442def strposition_to_locate_sql(self: Generator, expression: exp.StrPosition) -> str: +443 return self.func( +444 "LOCATE", expression.args.get("substr"), expression.this, expression.args.get("position") +445 ) 446 -447def timestrtotime_sql(self: Generator, expression: exp.TimeStrToTime) -> str: -448 return f"CAST({self.sql(expression, 'this')} AS TIMESTAMP)" -449 +447 +448def timestrtotime_sql(self: Generator, expression: exp.TimeStrToTime) -> str: +449 return f"CAST({self.sql(expression, 'this')} AS TIMESTAMP)" 450 -451def datestrtodate_sql(self: Generator, expression: exp.DateStrToDate) -> str: -452 return f"CAST({self.sql(expression, 'this')} AS DATE)" -453 +451 +452def datestrtodate_sql(self: Generator, expression: exp.DateStrToDate) -> str: +453 return f"CAST({self.sql(expression, 'this')} AS DATE)" 454 -455def min_or_least(self: Generator, expression: exp.Min) -> str: -456 name = "LEAST" if expression.expressions else "MIN" -457 return rename_func(name)(self, expression) -458 +455 +456def min_or_least(self: Generator, expression: exp.Min) -> str: +457 name = "LEAST" if expression.expressions else "MIN" +458 return rename_func(name)(self, expression) 459 -460def max_or_greatest(self: Generator, expression: exp.Max) -> str: -461 name = "GREATEST" if expression.expressions else "MAX" -462 return rename_func(name)(self, expression) -463 +460 +461def max_or_greatest(self: Generator, expression: exp.Max) -> str: +462 name = "GREATEST" if expression.expressions else "MAX" +463 return rename_func(name)(self, expression) 464 -465def count_if_to_sum(self: Generator, expression: exp.CountIf) -> str: -466 cond = expression.this -467 -468 if isinstance(expression.this, exp.Distinct): -469 cond = expression.this.expressions[0] -470 self.unsupported("DISTINCT is not supported when converting COUNT_IF to SUM") -471 -472 return self.func("sum", exp.func("if", cond, 1, 0)) -473 +465 +466def count_if_to_sum(self: Generator, expression: exp.CountIf) -> str: +467 cond = expression.this +468 +469 if isinstance(expression.this, exp.Distinct): +470 cond = expression.this.expressions[0] +471 self.unsupported("DISTINCT is not supported when converting COUNT_IF to SUM") +472 +473 return self.func("sum", exp.func("if", cond, 1, 0)) 474 -475def trim_sql(self: Generator, expression: exp.Trim) -> str: -476 target = self.sql(expression, "this") -477 trim_type = self.sql(expression, "position") -478 remove_chars = self.sql(expression, "expression") -479 collation = self.sql(expression, "collation") -480 -481 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific -482 if not remove_chars and not collation: -483 return self.trim_sql(expression) -484 -485 trim_type = f"{trim_type} " if trim_type else "" -486 remove_chars = f"{remove_chars} " if remove_chars else "" -487 from_part = "FROM " if trim_type or remove_chars else "" -488 collation = f" COLLATE {collation}" if collation else "" -489 return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})" -490 +475 +476def trim_sql(self: Generator, expression: exp.Trim) -> str: +477 target = self.sql(expression, "this") +478 trim_type = self.sql(expression, "position") +479 remove_chars = self.sql(expression, "expression") +480 collation = self.sql(expression, "collation") +481 +482 # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific +483 if not remove_chars and not collation: +484 return self.trim_sql(expression) +485 +486 trim_type = f"{trim_type} " if trim_type else "" +487 remove_chars = f"{remove_chars} " if remove_chars else "" +488 from_part = "FROM " if trim_type or remove_chars else "" +489 collation = f" COLLATE {collation}" if collation else "" +490 return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})" 491 -492def str_to_time_sql(self, expression: exp.Expression) -> str: -493 return self.func("STRPTIME", expression.this, self.format_time(expression)) -494 +492 +493def str_to_time_sql(self, expression: exp.Expression) -> str: +494 return self.func("STRPTIME", expression.this, self.format_time(expression)) 495 -496def ts_or_ds_to_date_sql(dialect: str) -> t.Callable: -497 def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str: -498 _dialect = Dialect.get_or_raise(dialect) -499 time_format = self.format_time(expression) -500 if time_format and time_format not in (_dialect.time_format, _dialect.date_format): -501 return f"CAST({str_to_time_sql(self, expression)} AS DATE)" -502 return f"CAST({self.sql(expression, 'this')} AS DATE)" -503 -504 return _ts_or_ds_to_date_sql +496 +497def ts_or_ds_to_date_sql(dialect: str) -> t.Callable: +498 def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str: +499 _dialect = Dialect.get_or_raise(dialect) +500 time_format = self.format_time(expression) +501 if time_format and time_format not in (_dialect.time_format, _dialect.date_format): +502 return f"CAST({str_to_time_sql(self, expression)} AS DATE)" +503 return f"CAST({self.sql(expression, 'this')} AS DATE)" +504 +505 return _ts_or_ds_to_date_sql
    @@ -787,14 +791,15 @@ 29 REDSHIFT = "redshift" 30 SNOWFLAKE = "snowflake" 31 SPARK = "spark" -32 SQLITE = "sqlite" -33 STARROCKS = "starrocks" -34 TABLEAU = "tableau" -35 TRINO = "trino" -36 TSQL = "tsql" -37 DATABRICKS = "databricks" -38 DRILL = "drill" -39 TERADATA = "teradata" +32 SPARK2 = "spark2" +33 SQLITE = "sqlite" +34 STARROCKS = "starrocks" +35 TABLEAU = "tableau" +36 TRINO = "trino" +37 TSQL = "tsql" +38 DATABRICKS = "databricks" +39 DRILL = "drill" +40 TERADATA = "teradata"
    @@ -945,6 +950,18 @@ + +
    +
    + SPARK2 = +<Dialects.SPARK2: 'spark2'> + + +
    + + + +
    @@ -1114,121 +1131,121 @@
    -
    101class Dialect(metaclass=_Dialect):
    -102    index_offset = 0
    -103    unnest_column_only = False
    -104    alias_post_tablesample = False
    -105    normalize_functions: t.Optional[str] = "upper"
    -106    null_ordering = "nulls_are_small"
    -107
    -108    date_format = "'%Y-%m-%d'"
    -109    dateint_format = "'%Y%m%d'"
    -110    time_format = "'%Y-%m-%d %H:%M:%S'"
    -111    time_mapping: t.Dict[str, str] = {}
    -112
    -113    # autofilled
    -114    quote_start = None
    -115    quote_end = None
    -116    identifier_start = None
    -117    identifier_end = None
    -118
    -119    time_trie = None
    -120    inverse_time_mapping = None
    -121    inverse_time_trie = None
    -122    tokenizer_class = None
    -123    parser_class = None
    -124    generator_class = None
    -125
    -126    @classmethod
    -127    def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]:
    -128        if not dialect:
    -129            return cls
    -130        if isinstance(dialect, _Dialect):
    -131            return dialect
    -132        if isinstance(dialect, Dialect):
    -133            return dialect.__class__
    -134
    -135        result = cls.get(dialect)
    -136        if not result:
    -137            raise ValueError(f"Unknown dialect '{dialect}'")
    -138
    -139        return result
    -140
    -141    @classmethod
    -142    def format_time(
    -143        cls, expression: t.Optional[str | exp.Expression]
    -144    ) -> t.Optional[exp.Expression]:
    -145        if isinstance(expression, str):
    -146            return exp.Literal.string(
    -147                format_time(
    -148                    expression[1:-1],  # the time formats are quoted
    -149                    cls.time_mapping,
    -150                    cls.time_trie,
    -151                )
    -152            )
    -153        if expression and expression.is_string:
    -154            return exp.Literal.string(
    -155                format_time(
    -156                    expression.this,
    -157                    cls.time_mapping,
    -158                    cls.time_trie,
    -159                )
    -160            )
    -161        return expression
    -162
    -163    def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]:
    -164        return self.parser(**opts).parse(self.tokenize(sql), sql)
    -165
    -166    def parse_into(
    -167        self, expression_type: exp.IntoType, sql: str, **opts
    -168    ) -> t.List[t.Optional[exp.Expression]]:
    -169        return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql)
    -170
    -171    def generate(self, expression: t.Optional[exp.Expression], **opts) -> str:
    -172        return self.generator(**opts).generate(expression)
    -173
    -174    def transpile(self, sql: str, **opts) -> t.List[str]:
    -175        return [self.generate(expression, **opts) for expression in self.parse(sql)]
    -176
    -177    def tokenize(self, sql: str) -> t.List[Token]:
    -178        return self.tokenizer.tokenize(sql)
    -179
    -180    @property
    -181    def tokenizer(self) -> Tokenizer:
    -182        if not hasattr(self, "_tokenizer"):
    -183            self._tokenizer = self.tokenizer_class()  # type: ignore
    -184        return self._tokenizer
    -185
    -186    def parser(self, **opts) -> Parser:
    -187        return self.parser_class(  # type: ignore
    -188            **{
    -189                "index_offset": self.index_offset,
    -190                "unnest_column_only": self.unnest_column_only,
    -191                "alias_post_tablesample": self.alias_post_tablesample,
    -192                "null_ordering": self.null_ordering,
    -193                **opts,
    -194            },
    -195        )
    -196
    -197    def generator(self, **opts) -> Generator:
    -198        return self.generator_class(  # type: ignore
    -199            **{
    -200                "quote_start": self.quote_start,
    -201                "quote_end": self.quote_end,
    -202                "identifier_start": self.identifier_start,
    -203                "identifier_end": self.identifier_end,
    -204                "string_escape": self.tokenizer_class.STRING_ESCAPES[0],
    -205                "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0],
    -206                "index_offset": self.index_offset,
    -207                "time_mapping": self.inverse_time_mapping,
    -208                "time_trie": self.inverse_time_trie,
    -209                "unnest_column_only": self.unnest_column_only,
    -210                "alias_post_tablesample": self.alias_post_tablesample,
    -211                "normalize_functions": self.normalize_functions,
    -212                "null_ordering": self.null_ordering,
    -213                **opts,
    -214            }
    -215        )
    +            
    102class Dialect(metaclass=_Dialect):
    +103    index_offset = 0
    +104    unnest_column_only = False
    +105    alias_post_tablesample = False
    +106    normalize_functions: t.Optional[str] = "upper"
    +107    null_ordering = "nulls_are_small"
    +108
    +109    date_format = "'%Y-%m-%d'"
    +110    dateint_format = "'%Y%m%d'"
    +111    time_format = "'%Y-%m-%d %H:%M:%S'"
    +112    time_mapping: t.Dict[str, str] = {}
    +113
    +114    # autofilled
    +115    quote_start = None
    +116    quote_end = None
    +117    identifier_start = None
    +118    identifier_end = None
    +119
    +120    time_trie = None
    +121    inverse_time_mapping = None
    +122    inverse_time_trie = None
    +123    tokenizer_class = None
    +124    parser_class = None
    +125    generator_class = None
    +126
    +127    @classmethod
    +128    def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]:
    +129        if not dialect:
    +130            return cls
    +131        if isinstance(dialect, _Dialect):
    +132            return dialect
    +133        if isinstance(dialect, Dialect):
    +134            return dialect.__class__
    +135
    +136        result = cls.get(dialect)
    +137        if not result:
    +138            raise ValueError(f"Unknown dialect '{dialect}'")
    +139
    +140        return result
    +141
    +142    @classmethod
    +143    def format_time(
    +144        cls, expression: t.Optional[str | exp.Expression]
    +145    ) -> t.Optional[exp.Expression]:
    +146        if isinstance(expression, str):
    +147            return exp.Literal.string(
    +148                format_time(
    +149                    expression[1:-1],  # the time formats are quoted
    +150                    cls.time_mapping,
    +151                    cls.time_trie,
    +152                )
    +153            )
    +154        if expression and expression.is_string:
    +155            return exp.Literal.string(
    +156                format_time(
    +157                    expression.this,
    +158                    cls.time_mapping,
    +159                    cls.time_trie,
    +160                )
    +161            )
    +162        return expression
    +163
    +164    def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]:
    +165        return self.parser(**opts).parse(self.tokenize(sql), sql)
    +166
    +167    def parse_into(
    +168        self, expression_type: exp.IntoType, sql: str, **opts
    +169    ) -> t.List[t.Optional[exp.Expression]]:
    +170        return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql)
    +171
    +172    def generate(self, expression: t.Optional[exp.Expression], **opts) -> str:
    +173        return self.generator(**opts).generate(expression)
    +174
    +175    def transpile(self, sql: str, **opts) -> t.List[str]:
    +176        return [self.generate(expression, **opts) for expression in self.parse(sql)]
    +177
    +178    def tokenize(self, sql: str) -> t.List[Token]:
    +179        return self.tokenizer.tokenize(sql)
    +180
    +181    @property
    +182    def tokenizer(self) -> Tokenizer:
    +183        if not hasattr(self, "_tokenizer"):
    +184            self._tokenizer = self.tokenizer_class()  # type: ignore
    +185        return self._tokenizer
    +186
    +187    def parser(self, **opts) -> Parser:
    +188        return self.parser_class(  # type: ignore
    +189            **{
    +190                "index_offset": self.index_offset,
    +191                "unnest_column_only": self.unnest_column_only,
    +192                "alias_post_tablesample": self.alias_post_tablesample,
    +193                "null_ordering": self.null_ordering,
    +194                **opts,
    +195            },
    +196        )
    +197
    +198    def generator(self, **opts) -> Generator:
    +199        return self.generator_class(  # type: ignore
    +200            **{
    +201                "quote_start": self.quote_start,
    +202                "quote_end": self.quote_end,
    +203                "identifier_start": self.identifier_start,
    +204                "identifier_end": self.identifier_end,
    +205                "string_escape": self.tokenizer_class.STRING_ESCAPES[0],
    +206                "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0],
    +207                "index_offset": self.index_offset,
    +208                "time_mapping": self.inverse_time_mapping,
    +209                "time_trie": self.inverse_time_trie,
    +210                "unnest_column_only": self.unnest_column_only,
    +211                "alias_post_tablesample": self.alias_post_tablesample,
    +212                "normalize_functions": self.normalize_functions,
    +213                "null_ordering": self.null_ordering,
    +214                **opts,
    +215            }
    +216        )
     
    @@ -1246,20 +1263,20 @@
    -
    126    @classmethod
    -127    def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]:
    -128        if not dialect:
    -129            return cls
    -130        if isinstance(dialect, _Dialect):
    -131            return dialect
    -132        if isinstance(dialect, Dialect):
    -133            return dialect.__class__
    -134
    -135        result = cls.get(dialect)
    -136        if not result:
    -137            raise ValueError(f"Unknown dialect '{dialect}'")
    -138
    -139        return result
    +            
    127    @classmethod
    +128    def get_or_raise(cls, dialect: DialectType) -> t.Type[Dialect]:
    +129        if not dialect:
    +130            return cls
    +131        if isinstance(dialect, _Dialect):
    +132            return dialect
    +133        if isinstance(dialect, Dialect):
    +134            return dialect.__class__
    +135
    +136        result = cls.get(dialect)
    +137        if not result:
    +138            raise ValueError(f"Unknown dialect '{dialect}'")
    +139
    +140        return result
     
    @@ -1278,27 +1295,27 @@
    -
    141    @classmethod
    -142    def format_time(
    -143        cls, expression: t.Optional[str | exp.Expression]
    -144    ) -> t.Optional[exp.Expression]:
    -145        if isinstance(expression, str):
    -146            return exp.Literal.string(
    -147                format_time(
    -148                    expression[1:-1],  # the time formats are quoted
    -149                    cls.time_mapping,
    -150                    cls.time_trie,
    -151                )
    -152            )
    -153        if expression and expression.is_string:
    -154            return exp.Literal.string(
    -155                format_time(
    -156                    expression.this,
    -157                    cls.time_mapping,
    -158                    cls.time_trie,
    -159                )
    -160            )
    -161        return expression
    +            
    142    @classmethod
    +143    def format_time(
    +144        cls, expression: t.Optional[str | exp.Expression]
    +145    ) -> t.Optional[exp.Expression]:
    +146        if isinstance(expression, str):
    +147            return exp.Literal.string(
    +148                format_time(
    +149                    expression[1:-1],  # the time formats are quoted
    +150                    cls.time_mapping,
    +151                    cls.time_trie,
    +152                )
    +153            )
    +154        if expression and expression.is_string:
    +155            return exp.Literal.string(
    +156                format_time(
    +157                    expression.this,
    +158                    cls.time_mapping,
    +159                    cls.time_trie,
    +160                )
    +161            )
    +162        return expression
     
    @@ -1316,8 +1333,8 @@
    -
    163    def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]:
    -164        return self.parser(**opts).parse(self.tokenize(sql), sql)
    +            
    164    def parse(self, sql: str, **opts) -> t.List[t.Optional[exp.Expression]]:
    +165        return self.parser(**opts).parse(self.tokenize(sql), sql)
     
    @@ -1335,10 +1352,10 @@
    -
    166    def parse_into(
    -167        self, expression_type: exp.IntoType, sql: str, **opts
    -168    ) -> t.List[t.Optional[exp.Expression]]:
    -169        return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql)
    +            
    167    def parse_into(
    +168        self, expression_type: exp.IntoType, sql: str, **opts
    +169    ) -> t.List[t.Optional[exp.Expression]]:
    +170        return self.parser(**opts).parse_into(expression_type, self.tokenize(sql), sql)
     
    @@ -1356,8 +1373,8 @@
    -
    171    def generate(self, expression: t.Optional[exp.Expression], **opts) -> str:
    -172        return self.generator(**opts).generate(expression)
    +            
    172    def generate(self, expression: t.Optional[exp.Expression], **opts) -> str:
    +173        return self.generator(**opts).generate(expression)
     
    @@ -1375,8 +1392,8 @@
    -
    174    def transpile(self, sql: str, **opts) -> t.List[str]:
    -175        return [self.generate(expression, **opts) for expression in self.parse(sql)]
    +            
    175    def transpile(self, sql: str, **opts) -> t.List[str]:
    +176        return [self.generate(expression, **opts) for expression in self.parse(sql)]
     
    @@ -1394,8 +1411,8 @@
    -
    177    def tokenize(self, sql: str) -> t.List[Token]:
    -178        return self.tokenizer.tokenize(sql)
    +            
    178    def tokenize(self, sql: str) -> t.List[Token]:
    +179        return self.tokenizer.tokenize(sql)
     
    @@ -1413,16 +1430,16 @@
    -
    186    def parser(self, **opts) -> Parser:
    -187        return self.parser_class(  # type: ignore
    -188            **{
    -189                "index_offset": self.index_offset,
    -190                "unnest_column_only": self.unnest_column_only,
    -191                "alias_post_tablesample": self.alias_post_tablesample,
    -192                "null_ordering": self.null_ordering,
    -193                **opts,
    -194            },
    -195        )
    +            
    187    def parser(self, **opts) -> Parser:
    +188        return self.parser_class(  # type: ignore
    +189            **{
    +190                "index_offset": self.index_offset,
    +191                "unnest_column_only": self.unnest_column_only,
    +192                "alias_post_tablesample": self.alias_post_tablesample,
    +193                "null_ordering": self.null_ordering,
    +194                **opts,
    +195            },
    +196        )
     
    @@ -1440,25 +1457,25 @@
    -
    197    def generator(self, **opts) -> Generator:
    -198        return self.generator_class(  # type: ignore
    -199            **{
    -200                "quote_start": self.quote_start,
    -201                "quote_end": self.quote_end,
    -202                "identifier_start": self.identifier_start,
    -203                "identifier_end": self.identifier_end,
    -204                "string_escape": self.tokenizer_class.STRING_ESCAPES[0],
    -205                "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0],
    -206                "index_offset": self.index_offset,
    -207                "time_mapping": self.inverse_time_mapping,
    -208                "time_trie": self.inverse_time_trie,
    -209                "unnest_column_only": self.unnest_column_only,
    -210                "alias_post_tablesample": self.alias_post_tablesample,
    -211                "normalize_functions": self.normalize_functions,
    -212                "null_ordering": self.null_ordering,
    -213                **opts,
    -214            }
    -215        )
    +            
    198    def generator(self, **opts) -> Generator:
    +199        return self.generator_class(  # type: ignore
    +200            **{
    +201                "quote_start": self.quote_start,
    +202                "quote_end": self.quote_end,
    +203                "identifier_start": self.identifier_start,
    +204                "identifier_end": self.identifier_end,
    +205                "string_escape": self.tokenizer_class.STRING_ESCAPES[0],
    +206                "identifier_escape": self.tokenizer_class.IDENTIFIER_ESCAPES[0],
    +207                "index_offset": self.index_offset,
    +208                "time_mapping": self.inverse_time_mapping,
    +209                "time_trie": self.inverse_time_trie,
    +210                "unnest_column_only": self.unnest_column_only,
    +211                "alias_post_tablesample": self.alias_post_tablesample,
    +212                "normalize_functions": self.normalize_functions,
    +213                "null_ordering": self.null_ordering,
    +214                **opts,
    +215            }
    +216        )
     
    @@ -1477,8 +1494,8 @@
    -
    221def rename_func(name: str) -> t.Callable[[Generator, exp.Expression], str]:
    -222    return lambda self, expression: self.func(name, *flatten(expression.args.values()))
    +            
    222def rename_func(name: str) -> t.Callable[[Generator, exp.Expression], str]:
    +223    return lambda self, expression: self.func(name, *flatten(expression.args.values()))
     
    @@ -1496,10 +1513,10 @@
    -
    225def approx_count_distinct_sql(self: Generator, expression: exp.ApproxDistinct) -> str:
    -226    if expression.args.get("accuracy"):
    -227        self.unsupported("APPROX_COUNT_DISTINCT does not support accuracy")
    -228    return self.func("APPROX_COUNT_DISTINCT", expression.this)
    +            
    226def approx_count_distinct_sql(self: Generator, expression: exp.ApproxDistinct) -> str:
    +227    if expression.args.get("accuracy"):
    +228        self.unsupported("APPROX_COUNT_DISTINCT does not support accuracy")
    +229    return self.func("APPROX_COUNT_DISTINCT", expression.this)
     
    @@ -1517,10 +1534,10 @@
    -
    231def if_sql(self: Generator, expression: exp.If) -> str:
    -232    return self.func(
    -233        "IF", expression.this, expression.args.get("true"), expression.args.get("false")
    -234    )
    +            
    232def if_sql(self: Generator, expression: exp.If) -> str:
    +233    return self.func(
    +234        "IF", expression.this, expression.args.get("true"), expression.args.get("false")
    +235    )
     
    @@ -1538,8 +1555,8 @@
    -
    237def arrow_json_extract_sql(self: Generator, expression: exp.JSONExtract | exp.JSONBExtract) -> str:
    -238    return self.binary(expression, "->")
    +            
    238def arrow_json_extract_sql(self: Generator, expression: exp.JSONExtract | exp.JSONBExtract) -> str:
    +239    return self.binary(expression, "->")
     
    @@ -1557,10 +1574,10 @@
    -
    241def arrow_json_extract_scalar_sql(
    -242    self: Generator, expression: exp.JSONExtractScalar | exp.JSONBExtractScalar
    -243) -> str:
    -244    return self.binary(expression, "->>")
    +            
    242def arrow_json_extract_scalar_sql(
    +243    self: Generator, expression: exp.JSONExtractScalar | exp.JSONBExtractScalar
    +244) -> str:
    +245    return self.binary(expression, "->>")
     
    @@ -1578,8 +1595,8 @@
    -
    247def inline_array_sql(self: Generator, expression: exp.Array) -> str:
    -248    return f"[{self.expressions(expression)}]"
    +            
    248def inline_array_sql(self: Generator, expression: exp.Array) -> str:
    +249    return f"[{self.expressions(expression)}]"
     
    @@ -1597,13 +1614,13 @@
    -
    251def no_ilike_sql(self: Generator, expression: exp.ILike) -> str:
    -252    return self.like_sql(
    -253        exp.Like(
    -254            this=exp.Lower(this=expression.this),
    -255            expression=expression.args["expression"],
    -256        )
    -257    )
    +            
    252def no_ilike_sql(self: Generator, expression: exp.ILike) -> str:
    +253    return self.like_sql(
    +254        exp.Like(
    +255            this=exp.Lower(this=expression.this),
    +256            expression=expression.args["expression"],
    +257        )
    +258    )
     
    @@ -1621,9 +1638,9 @@
    -
    260def no_paren_current_date_sql(self: Generator, expression: exp.CurrentDate) -> str:
    -261    zone = self.sql(expression, "this")
    -262    return f"CURRENT_DATE AT TIME ZONE {zone}" if zone else "CURRENT_DATE"
    +            
    261def no_paren_current_date_sql(self: Generator, expression: exp.CurrentDate) -> str:
    +262    zone = self.sql(expression, "this")
    +263    return f"CURRENT_DATE AT TIME ZONE {zone}" if zone else "CURRENT_DATE"
     
    @@ -1641,11 +1658,11 @@
    -
    265def no_recursive_cte_sql(self: Generator, expression: exp.With) -> str:
    -266    if expression.args.get("recursive"):
    -267        self.unsupported("Recursive CTEs are unsupported")
    -268        expression.args["recursive"] = False
    -269    return self.with_sql(expression)
    +            
    266def no_recursive_cte_sql(self: Generator, expression: exp.With) -> str:
    +267    if expression.args.get("recursive"):
    +268        self.unsupported("Recursive CTEs are unsupported")
    +269        expression.args["recursive"] = False
    +270    return self.with_sql(expression)
     
    @@ -1663,10 +1680,10 @@
    -
    272def no_safe_divide_sql(self: Generator, expression: exp.SafeDivide) -> str:
    -273    n = self.sql(expression, "this")
    -274    d = self.sql(expression, "expression")
    -275    return f"IF({d} <> 0, {n} / {d}, NULL)"
    +            
    273def no_safe_divide_sql(self: Generator, expression: exp.SafeDivide) -> str:
    +274    n = self.sql(expression, "this")
    +275    d = self.sql(expression, "expression")
    +276    return f"IF({d} <> 0, {n} / {d}, NULL)"
     
    @@ -1684,9 +1701,9 @@
    -
    278def no_tablesample_sql(self: Generator, expression: exp.TableSample) -> str:
    -279    self.unsupported("TABLESAMPLE unsupported")
    -280    return self.sql(expression.this)
    +            
    279def no_tablesample_sql(self: Generator, expression: exp.TableSample) -> str:
    +280    self.unsupported("TABLESAMPLE unsupported")
    +281    return self.sql(expression.this)
     
    @@ -1704,9 +1721,9 @@
    -
    283def no_pivot_sql(self: Generator, expression: exp.Pivot) -> str:
    -284    self.unsupported("PIVOT unsupported")
    -285    return self.sql(expression)
    +            
    284def no_pivot_sql(self: Generator, expression: exp.Pivot) -> str:
    +285    self.unsupported("PIVOT unsupported")
    +286    return self.sql(expression)
     
    @@ -1724,8 +1741,8 @@
    -
    288def no_trycast_sql(self: Generator, expression: exp.TryCast) -> str:
    -289    return self.cast_sql(expression)
    +            
    289def no_trycast_sql(self: Generator, expression: exp.TryCast) -> str:
    +290    return self.cast_sql(expression)
     
    @@ -1743,9 +1760,9 @@
    -
    292def no_properties_sql(self: Generator, expression: exp.Properties) -> str:
    -293    self.unsupported("Properties unsupported")
    -294    return ""
    +            
    293def no_properties_sql(self: Generator, expression: exp.Properties) -> str:
    +294    self.unsupported("Properties unsupported")
    +295    return ""
     
    @@ -1763,11 +1780,11 @@
    -
    297def no_comment_column_constraint_sql(
    -298    self: Generator, expression: exp.CommentColumnConstraint
    -299) -> str:
    -300    self.unsupported("CommentColumnConstraint unsupported")
    -301    return ""
    +            
    298def no_comment_column_constraint_sql(
    +299    self: Generator, expression: exp.CommentColumnConstraint
    +300) -> str:
    +301    self.unsupported("CommentColumnConstraint unsupported")
    +302    return ""
     
    @@ -1785,13 +1802,13 @@
    -
    304def str_position_sql(self: Generator, expression: exp.StrPosition) -> str:
    -305    this = self.sql(expression, "this")
    -306    substr = self.sql(expression, "substr")
    -307    position = self.sql(expression, "position")
    -308    if position:
    -309        return f"STRPOS(SUBSTR({this}, {position}), {substr}) + {position} - 1"
    -310    return f"STRPOS({this}, {substr})"
    +            
    305def str_position_sql(self: Generator, expression: exp.StrPosition) -> str:
    +306    this = self.sql(expression, "this")
    +307    substr = self.sql(expression, "substr")
    +308    position = self.sql(expression, "position")
    +309    if position:
    +310        return f"STRPOS(SUBSTR({this}, {position}), {substr}) + {position} - 1"
    +311    return f"STRPOS({this}, {substr})"
     
    @@ -1809,10 +1826,10 @@
    -
    313def struct_extract_sql(self: Generator, expression: exp.StructExtract) -> str:
    -314    this = self.sql(expression, "this")
    -315    struct_key = self.sql(exp.Identifier(this=expression.expression, quoted=True))
    -316    return f"{this}.{struct_key}"
    +            
    314def struct_extract_sql(self: Generator, expression: exp.StructExtract) -> str:
    +315    this = self.sql(expression, "this")
    +316    struct_key = self.sql(exp.Identifier(this=expression.expression, quoted=True))
    +317    return f"{this}.{struct_key}"
     
    @@ -1830,21 +1847,21 @@
    -
    319def var_map_sql(
    -320    self: Generator, expression: exp.Map | exp.VarMap, map_func_name: str = "MAP"
    -321) -> str:
    -322    keys = expression.args["keys"]
    -323    values = expression.args["values"]
    -324
    -325    if not isinstance(keys, exp.Array) or not isinstance(values, exp.Array):
    -326        self.unsupported("Cannot convert array columns into map.")
    -327        return self.func(map_func_name, keys, values)
    -328
    -329    args = []
    -330    for key, value in zip(keys.expressions, values.expressions):
    -331        args.append(self.sql(key))
    -332        args.append(self.sql(value))
    -333    return self.func(map_func_name, *args)
    +            
    320def var_map_sql(
    +321    self: Generator, expression: exp.Map | exp.VarMap, map_func_name: str = "MAP"
    +322) -> str:
    +323    keys = expression.args["keys"]
    +324    values = expression.args["values"]
    +325
    +326    if not isinstance(keys, exp.Array) or not isinstance(values, exp.Array):
    +327        self.unsupported("Cannot convert array columns into map.")
    +328        return self.func(map_func_name, keys, values)
    +329
    +330    args = []
    +331    for key, value in zip(keys.expressions, values.expressions):
    +332        args.append(self.sql(key))
    +333        args.append(self.sql(value))
    +334    return self.func(map_func_name, *args)
     
    @@ -1862,30 +1879,30 @@
    -
    336def format_time_lambda(
    -337    exp_class: t.Type[E], dialect: str, default: t.Optional[bool | str] = None
    -338) -> t.Callable[[t.Sequence], E]:
    -339    """Helper used for time expressions.
    -340
    -341    Args:
    -342        exp_class: the expression class to instantiate.
    -343        dialect: target sql dialect.
    -344        default: the default format, True being time.
    -345
    -346    Returns:
    -347        A callable that can be used to return the appropriately formatted time expression.
    -348    """
    -349
    -350    def _format_time(args: t.Sequence):
    -351        return exp_class(
    -352            this=seq_get(args, 0),
    -353            format=Dialect[dialect].format_time(
    -354                seq_get(args, 1)
    -355                or (Dialect[dialect].time_format if default is True else default or None)
    -356            ),
    -357        )
    -358
    -359    return _format_time
    +            
    337def format_time_lambda(
    +338    exp_class: t.Type[E], dialect: str, default: t.Optional[bool | str] = None
    +339) -> t.Callable[[t.Sequence], E]:
    +340    """Helper used for time expressions.
    +341
    +342    Args:
    +343        exp_class: the expression class to instantiate.
    +344        dialect: target sql dialect.
    +345        default: the default format, True being time.
    +346
    +347    Returns:
    +348        A callable that can be used to return the appropriately formatted time expression.
    +349    """
    +350
    +351    def _format_time(args: t.Sequence):
    +352        return exp_class(
    +353            this=seq_get(args, 0),
    +354            format=Dialect[dialect].format_time(
    +355                seq_get(args, 1)
    +356                or (Dialect[dialect].time_format if default is True else default or None)
    +357            ),
    +358        )
    +359
    +360    return _format_time
     
    @@ -1919,27 +1936,27 @@
    -
    362def create_with_partitions_sql(self: Generator, expression: exp.Create) -> str:
    -363    """
    -364    In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the
    -365    PARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding
    -366    columns are removed from the create statement.
    -367    """
    -368    has_schema = isinstance(expression.this, exp.Schema)
    -369    is_partitionable = expression.args.get("kind") in ("TABLE", "VIEW")
    -370
    -371    if has_schema and is_partitionable:
    -372        expression = expression.copy()
    -373        prop = expression.find(exp.PartitionedByProperty)
    -374        if prop and prop.this and not isinstance(prop.this, exp.Schema):
    -375            schema = expression.this
    -376            columns = {v.name.upper() for v in prop.this.expressions}
    -377            partitions = [col for col in schema.expressions if col.name.upper() in columns]
    -378            schema.set("expressions", [e for e in schema.expressions if e not in partitions])
    -379            prop.replace(exp.PartitionedByProperty(this=exp.Schema(expressions=partitions)))
    -380            expression.set("this", schema)
    -381
    -382    return self.create_sql(expression)
    +            
    363def create_with_partitions_sql(self: Generator, expression: exp.Create) -> str:
    +364    """
    +365    In Hive and Spark, the PARTITIONED BY property acts as an extension of a table's schema. When the
    +366    PARTITIONED BY value is an array of column names, they are transformed into a schema. The corresponding
    +367    columns are removed from the create statement.
    +368    """
    +369    has_schema = isinstance(expression.this, exp.Schema)
    +370    is_partitionable = expression.args.get("kind") in ("TABLE", "VIEW")
    +371
    +372    if has_schema and is_partitionable:
    +373        expression = expression.copy()
    +374        prop = expression.find(exp.PartitionedByProperty)
    +375        if prop and prop.this and not isinstance(prop.this, exp.Schema):
    +376            schema = expression.this
    +377            columns = {v.name.upper() for v in prop.this.expressions}
    +378            partitions = [col for col in schema.expressions if col.name.upper() in columns]
    +379            schema.set("expressions", [e for e in schema.expressions if e not in partitions])
    +380            prop.replace(exp.PartitionedByProperty(this=exp.Schema(expressions=partitions)))
    +381            expression.set("this", schema)
    +382
    +383    return self.create_sql(expression)
     
    @@ -1961,17 +1978,17 @@ columns are removed from the create statement.

    -
    385def parse_date_delta(
    -386    exp_class: t.Type[E], unit_mapping: t.Optional[t.Dict[str, str]] = None
    -387) -> t.Callable[[t.Sequence], E]:
    -388    def inner_func(args: t.Sequence) -> E:
    -389        unit_based = len(args) == 3
    -390        this = args[2] if unit_based else seq_get(args, 0)
    -391        unit = args[0] if unit_based else exp.Literal.string("DAY")
    -392        unit = unit_mapping.get(unit.name.lower(), unit) if unit_mapping else unit
    -393        return exp_class(this=this, expression=seq_get(args, 1), unit=unit)
    -394
    -395    return inner_func
    +            
    386def parse_date_delta(
    +387    exp_class: t.Type[E], unit_mapping: t.Optional[t.Dict[str, str]] = None
    +388) -> t.Callable[[t.Sequence], E]:
    +389    def inner_func(args: t.Sequence) -> E:
    +390        unit_based = len(args) == 3
    +391        this = args[2] if unit_based else seq_get(args, 0)
    +392        unit = args[0] if unit_based else exp.Literal.string("DAY")
    +393        unit = unit_mapping.get(unit.name.lower(), unit) if unit_mapping else unit
    +394        return exp_class(this=this, expression=seq_get(args, 1), unit=unit)
    +395
    +396    return inner_func
     
    @@ -1989,25 +2006,25 @@ columns are removed from the create statement.

    -
    398def parse_date_delta_with_interval(
    -399    expression_class: t.Type[E],
    -400) -> t.Callable[[t.Sequence], t.Optional[E]]:
    -401    def func(args: t.Sequence) -> t.Optional[E]:
    -402        if len(args) < 2:
    -403            return None
    -404
    -405        interval = args[1]
    -406        expression = interval.this
    -407        if expression and expression.is_string:
    -408            expression = exp.Literal.number(expression.this)
    -409
    -410        return expression_class(
    -411            this=args[0],
    -412            expression=expression,
    -413            unit=exp.Literal.string(interval.text("unit")),
    -414        )
    -415
    -416    return func
    +            
    399def parse_date_delta_with_interval(
    +400    expression_class: t.Type[E],
    +401) -> t.Callable[[t.Sequence], t.Optional[E]]:
    +402    def func(args: t.Sequence) -> t.Optional[E]:
    +403        if len(args) < 2:
    +404            return None
    +405
    +406        interval = args[1]
    +407        expression = interval.this
    +408        if expression and expression.is_string:
    +409            expression = exp.Literal.number(expression.this)
    +410
    +411        return expression_class(
    +412            this=args[0],
    +413            expression=expression,
    +414            unit=exp.Literal.string(interval.text("unit")),
    +415        )
    +416
    +417    return func
     
    @@ -2025,13 +2042,13 @@ columns are removed from the create statement.

    -
    419def date_trunc_to_time(args: t.Sequence) -> exp.DateTrunc | exp.TimestampTrunc:
    -420    unit = seq_get(args, 0)
    -421    this = seq_get(args, 1)
    -422
    -423    if isinstance(this, exp.Cast) and this.is_type(exp.DataType.Type.DATE):
    -424        return exp.DateTrunc(unit=unit, this=this)
    -425    return exp.TimestampTrunc(this=this, unit=unit)
    +            
    420def date_trunc_to_time(args: t.Sequence) -> exp.DateTrunc | exp.TimestampTrunc:
    +421    unit = seq_get(args, 0)
    +422    this = seq_get(args, 1)
    +423
    +424    if isinstance(this, exp.Cast) and this.is_type(exp.DataType.Type.DATE):
    +425        return exp.DateTrunc(unit=unit, this=this)
    +426    return exp.TimestampTrunc(this=this, unit=unit)
     
    @@ -2049,10 +2066,10 @@ columns are removed from the create statement.

    -
    428def timestamptrunc_sql(self: Generator, expression: exp.TimestampTrunc) -> str:
    -429    return self.func(
    -430        "DATE_TRUNC", exp.Literal.string(expression.text("unit") or "day"), expression.this
    -431    )
    +            
    429def timestamptrunc_sql(self: Generator, expression: exp.TimestampTrunc) -> str:
    +430    return self.func(
    +431        "DATE_TRUNC", exp.Literal.string(expression.text("unit") or "day"), expression.this
    +432    )
     
    @@ -2070,12 +2087,12 @@ columns are removed from the create statement.

    -
    434def locate_to_strposition(args: t.Sequence) -> exp.Expression:
    -435    return exp.StrPosition(
    -436        this=seq_get(args, 1),
    -437        substr=seq_get(args, 0),
    -438        position=seq_get(args, 2),
    -439    )
    +            
    435def locate_to_strposition(args: t.Sequence) -> exp.Expression:
    +436    return exp.StrPosition(
    +437        this=seq_get(args, 1),
    +438        substr=seq_get(args, 0),
    +439        position=seq_get(args, 2),
    +440    )
     
    @@ -2093,10 +2110,10 @@ columns are removed from the create statement.

    -
    442def strposition_to_locate_sql(self: Generator, expression: exp.StrPosition) -> str:
    -443    return self.func(
    -444        "LOCATE", expression.args.get("substr"), expression.this, expression.args.get("position")
    -445    )
    +            
    443def strposition_to_locate_sql(self: Generator, expression: exp.StrPosition) -> str:
    +444    return self.func(
    +445        "LOCATE", expression.args.get("substr"), expression.this, expression.args.get("position")
    +446    )
     
    @@ -2114,8 +2131,8 @@ columns are removed from the create statement.

    -
    448def timestrtotime_sql(self: Generator, expression: exp.TimeStrToTime) -> str:
    -449    return f"CAST({self.sql(expression, 'this')} AS TIMESTAMP)"
    +            
    449def timestrtotime_sql(self: Generator, expression: exp.TimeStrToTime) -> str:
    +450    return f"CAST({self.sql(expression, 'this')} AS TIMESTAMP)"
     
    @@ -2133,8 +2150,8 @@ columns are removed from the create statement.

    -
    452def datestrtodate_sql(self: Generator, expression: exp.DateStrToDate) -> str:
    -453    return f"CAST({self.sql(expression, 'this')} AS DATE)"
    +            
    453def datestrtodate_sql(self: Generator, expression: exp.DateStrToDate) -> str:
    +454    return f"CAST({self.sql(expression, 'this')} AS DATE)"
     
    @@ -2152,9 +2169,9 @@ columns are removed from the create statement.

    -
    456def min_or_least(self: Generator, expression: exp.Min) -> str:
    -457    name = "LEAST" if expression.expressions else "MIN"
    -458    return rename_func(name)(self, expression)
    +            
    457def min_or_least(self: Generator, expression: exp.Min) -> str:
    +458    name = "LEAST" if expression.expressions else "MIN"
    +459    return rename_func(name)(self, expression)
     
    @@ -2172,9 +2189,9 @@ columns are removed from the create statement.

    -
    461def max_or_greatest(self: Generator, expression: exp.Max) -> str:
    -462    name = "GREATEST" if expression.expressions else "MAX"
    -463    return rename_func(name)(self, expression)
    +            
    462def max_or_greatest(self: Generator, expression: exp.Max) -> str:
    +463    name = "GREATEST" if expression.expressions else "MAX"
    +464    return rename_func(name)(self, expression)
     
    @@ -2192,14 +2209,14 @@ columns are removed from the create statement.

    -
    466def count_if_to_sum(self: Generator, expression: exp.CountIf) -> str:
    -467    cond = expression.this
    -468
    -469    if isinstance(expression.this, exp.Distinct):
    -470        cond = expression.this.expressions[0]
    -471        self.unsupported("DISTINCT is not supported when converting COUNT_IF to SUM")
    -472
    -473    return self.func("sum", exp.func("if", cond, 1, 0))
    +            
    467def count_if_to_sum(self: Generator, expression: exp.CountIf) -> str:
    +468    cond = expression.this
    +469
    +470    if isinstance(expression.this, exp.Distinct):
    +471        cond = expression.this.expressions[0]
    +472        self.unsupported("DISTINCT is not supported when converting COUNT_IF to SUM")
    +473
    +474    return self.func("sum", exp.func("if", cond, 1, 0))
     
    @@ -2217,21 +2234,21 @@ columns are removed from the create statement.

    -
    476def trim_sql(self: Generator, expression: exp.Trim) -> str:
    -477    target = self.sql(expression, "this")
    -478    trim_type = self.sql(expression, "position")
    -479    remove_chars = self.sql(expression, "expression")
    -480    collation = self.sql(expression, "collation")
    -481
    -482    # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific
    -483    if not remove_chars and not collation:
    -484        return self.trim_sql(expression)
    -485
    -486    trim_type = f"{trim_type} " if trim_type else ""
    -487    remove_chars = f"{remove_chars} " if remove_chars else ""
    -488    from_part = "FROM " if trim_type or remove_chars else ""
    -489    collation = f" COLLATE {collation}" if collation else ""
    -490    return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})"
    +            
    477def trim_sql(self: Generator, expression: exp.Trim) -> str:
    +478    target = self.sql(expression, "this")
    +479    trim_type = self.sql(expression, "position")
    +480    remove_chars = self.sql(expression, "expression")
    +481    collation = self.sql(expression, "collation")
    +482
    +483    # Use TRIM/LTRIM/RTRIM syntax if the expression isn't database-specific
    +484    if not remove_chars and not collation:
    +485        return self.trim_sql(expression)
    +486
    +487    trim_type = f"{trim_type} " if trim_type else ""
    +488    remove_chars = f"{remove_chars} " if remove_chars else ""
    +489    from_part = "FROM " if trim_type or remove_chars else ""
    +490    collation = f" COLLATE {collation}" if collation else ""
    +491    return f"TRIM({trim_type}{remove_chars}{from_part}{target}{collation})"
     
    @@ -2249,8 +2266,8 @@ columns are removed from the create statement.

    -
    493def str_to_time_sql(self, expression: exp.Expression) -> str:
    -494    return self.func("STRPTIME", expression.this, self.format_time(expression))
    +            
    494def str_to_time_sql(self, expression: exp.Expression) -> str:
    +495    return self.func("STRPTIME", expression.this, self.format_time(expression))
     
    @@ -2268,15 +2285,15 @@ columns are removed from the create statement.

    -
    497def ts_or_ds_to_date_sql(dialect: str) -> t.Callable:
    -498    def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str:
    -499        _dialect = Dialect.get_or_raise(dialect)
    -500        time_format = self.format_time(expression)
    -501        if time_format and time_format not in (_dialect.time_format, _dialect.date_format):
    -502            return f"CAST({str_to_time_sql(self, expression)} AS DATE)"
    -503        return f"CAST({self.sql(expression, 'this')} AS DATE)"
    -504
    -505    return _ts_or_ds_to_date_sql
    +            
    498def ts_or_ds_to_date_sql(dialect: str) -> t.Callable:
    +499    def _ts_or_ds_to_date_sql(self: Generator, expression: exp.TsOrDsToDate) -> str:
    +500        _dialect = Dialect.get_or_raise(dialect)
    +501        time_format = self.format_time(expression)
    +502        if time_format and time_format not in (_dialect.time_format, _dialect.date_format):
    +503            return f"CAST({str_to_time_sql(self, expression)} AS DATE)"
    +504        return f"CAST({self.sql(expression, 'this')} AS DATE)"
    +505
    +506    return _ts_or_ds_to_date_sql
     
    diff --git a/docs/sqlglot/dialects/drill.html b/docs/sqlglot/dialects/drill.html index bd76bd7..19f0262 100644 --- a/docs/sqlglot/dialects/drill.html +++ b/docs/sqlglot/dialects/drill.html @@ -84,7 +84,7 @@
    2 3import typing as t 4 - 5from sqlglot import exp, generator, parser, tokens + 5from sqlglot import exp, generator, parser, tokens, transforms 6from sqlglot.dialects.dialect import ( 7 Dialect, 8 create_with_partitions_sql, @@ -227,21 +227,22 @@ 145 exp.StrPosition: str_position_sql, 146 exp.StrToDate: _str_to_date, 147 exp.Pow: rename_func("POW"), -148 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -149 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", -150 exp.TimeStrToTime: timestrtotime_sql, -151 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -152 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -153 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -154 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -155 exp.TryCast: no_trycast_sql, -156 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", -157 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), -158 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", -159 } -160 -161 def normalize_func(self, name: str) -> str: -162 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" +148 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +149 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +150 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +151 exp.TimeStrToTime: timestrtotime_sql, +152 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +153 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +154 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +155 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +156 exp.TryCast: no_trycast_sql, +157 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", +158 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +159 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +160 } +161 +162 def normalize_func(self, name: str) -> str: +163 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
    @@ -356,21 +357,22 @@ 146 exp.StrPosition: str_position_sql, 147 exp.StrToDate: _str_to_date, 148 exp.Pow: rename_func("POW"), -149 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -150 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", -151 exp.TimeStrToTime: timestrtotime_sql, -152 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -153 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -154 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -155 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -156 exp.TryCast: no_trycast_sql, -157 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", -158 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), -159 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", -160 } -161 -162 def normalize_func(self, name: str) -> str: -163 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" +149 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +150 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +151 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +152 exp.TimeStrToTime: timestrtotime_sql, +153 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +154 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +155 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +156 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +157 exp.TryCast: no_trycast_sql, +158 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", +159 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +160 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +161 } +162 +163 def normalize_func(self, name: str) -> str: +164 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
    @@ -546,21 +548,22 @@ Default: "nulls_are_small" 146 exp.StrPosition: str_position_sql, 147 exp.StrToDate: _str_to_date, 148 exp.Pow: rename_func("POW"), -149 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -150 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", -151 exp.TimeStrToTime: timestrtotime_sql, -152 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -153 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -154 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -155 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -156 exp.TryCast: no_trycast_sql, -157 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", -158 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), -159 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", -160 } -161 -162 def normalize_func(self, name: str) -> str: -163 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" +149 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +150 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +151 exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", +152 exp.TimeStrToTime: timestrtotime_sql, +153 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +154 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +155 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +156 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +157 exp.TryCast: no_trycast_sql, +158 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD(CAST({self.sql(e, 'this')} AS DATE), {self.sql(exp.Interval(this=e.expression, unit=exp.Var(this='DAY')))})", +159 exp.TsOrDsToDate: ts_or_ds_to_date_sql("drill"), +160 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +161 } +162 +163 def normalize_func(self, name: str) -> str: +164 return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`" @@ -619,8 +622,8 @@ Default: True -
    162        def normalize_func(self, name: str) -> str:
    -163            return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
    +            
    163        def normalize_func(self, name: str) -> str:
    +164            return name if exp.SAFE_IDENTIFIER_RE.match(name) else f"`{name}`"
     
    @@ -750,7 +753,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -759,6 +762,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/duckdb.html b/docs/sqlglot/dialects/duckdb.html index 87d47ec..145445d 100644 --- a/docs/sqlglot/dialects/duckdb.html +++ b/docs/sqlglot/dialects/duckdb.html @@ -82,232 +82,246 @@
      1from __future__ import annotations
       2
    -  3from sqlglot import exp, generator, parser, tokens
    -  4from sqlglot.dialects.dialect import (
    -  5    Dialect,
    -  6    approx_count_distinct_sql,
    -  7    arrow_json_extract_scalar_sql,
    -  8    arrow_json_extract_sql,
    -  9    datestrtodate_sql,
    - 10    format_time_lambda,
    - 11    no_comment_column_constraint_sql,
    - 12    no_pivot_sql,
    - 13    no_properties_sql,
    - 14    no_safe_divide_sql,
    - 15    rename_func,
    - 16    str_position_sql,
    - 17    str_to_time_sql,
    - 18    timestamptrunc_sql,
    - 19    timestrtotime_sql,
    - 20    ts_or_ds_to_date_sql,
    - 21)
    - 22from sqlglot.helper import seq_get
    - 23from sqlglot.tokens import TokenType
    - 24
    - 25
    - 26def _ts_or_ds_add(self, expression):
    - 27    this = self.sql(expression, "this")
    - 28    unit = self.sql(expression, "unit").strip("'") or "DAY"
    - 29    return f"CAST({this} AS DATE) + {self.sql(exp.Interval(this=expression.expression, unit=unit))}"
    - 30
    - 31
    - 32def _date_add(self, expression):
    - 33    this = self.sql(expression, "this")
    - 34    unit = self.sql(expression, "unit").strip("'") or "DAY"
    - 35    return f"{this} + {self.sql(exp.Interval(this=expression.expression, unit=unit))}"
    - 36
    - 37
    - 38def _array_sort_sql(self, expression):
    - 39    if expression.expression:
    - 40        self.unsupported("DUCKDB ARRAY_SORT does not support a comparator")
    - 41    return f"ARRAY_SORT({self.sql(expression, 'this')})"
    - 42
    - 43
    - 44def _sort_array_sql(self, expression):
    - 45    this = self.sql(expression, "this")
    - 46    if expression.args.get("asc") == exp.false():
    - 47        return f"ARRAY_REVERSE_SORT({this})"
    - 48    return f"ARRAY_SORT({this})"
    - 49
    - 50
    - 51def _sort_array_reverse(args):
    - 52    return exp.SortArray(this=seq_get(args, 0), asc=exp.false())
    - 53
    - 54
    - 55def _struct_sql(self, expression):
    - 56    args = [
    - 57        f"'{e.name or e.this.name}': {self.sql(e, 'expression')}" for e in expression.expressions
    - 58    ]
    - 59    return f"{{{', '.join(args)}}}"
    - 60
    - 61
    - 62def _datatype_sql(self, expression):
    - 63    if expression.this == exp.DataType.Type.ARRAY:
    - 64        return f"{self.expressions(expression, flat=True)}[]"
    - 65    return self.datatype_sql(expression)
    - 66
    - 67
    - 68def _regexp_extract_sql(self, expression):
    - 69    bad_args = list(filter(expression.args.get, ("position", "occurrence")))
    - 70    if bad_args:
    - 71        self.unsupported(f"REGEXP_EXTRACT does not support arg(s) {bad_args}")
    - 72    return self.func(
    - 73        "REGEXP_EXTRACT",
    - 74        expression.args.get("this"),
    - 75        expression.args.get("expression"),
    - 76        expression.args.get("group"),
    - 77    )
    - 78
    - 79
    - 80class DuckDB(Dialect):
    - 81    class Tokenizer(tokens.Tokenizer):
    - 82        KEYWORDS = {
    - 83            **tokens.Tokenizer.KEYWORDS,
    - 84            "~": TokenType.RLIKE,
    - 85            ":=": TokenType.EQ,
    - 86            "ATTACH": TokenType.COMMAND,
    - 87            "BINARY": TokenType.VARBINARY,
    - 88            "BPCHAR": TokenType.TEXT,
    - 89            "BITSTRING": TokenType.BIT,
    - 90            "CHAR": TokenType.TEXT,
    - 91            "CHARACTER VARYING": TokenType.TEXT,
    - 92            "EXCLUDE": TokenType.EXCEPT,
    - 93            "INT1": TokenType.TINYINT,
    - 94            "LOGICAL": TokenType.BOOLEAN,
    - 95            "NUMERIC": TokenType.DOUBLE,
    - 96            "SIGNED": TokenType.INT,
    - 97            "STRING": TokenType.VARCHAR,
    - 98            "UBIGINT": TokenType.UBIGINT,
    - 99            "UINTEGER": TokenType.UINT,
    -100            "USMALLINT": TokenType.USMALLINT,
    -101            "UTINYINT": TokenType.UTINYINT,
    -102        }
    -103
    -104    class Parser(parser.Parser):
    -105        FUNCTIONS = {
    -106            **parser.Parser.FUNCTIONS,  # type: ignore
    -107            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -108            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    -109            "ARRAY_SORT": exp.SortArray.from_arg_list,
    -110            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    -111            "EPOCH": exp.TimeToUnix.from_arg_list,
    -112            "EPOCH_MS": lambda args: exp.UnixToTime(
    -113                this=exp.Div(
    -114                    this=seq_get(args, 0),
    -115                    expression=exp.Literal.number(1000),
    -116                )
    -117            ),
    -118            "LIST_SORT": exp.SortArray.from_arg_list,
    -119            "LIST_REVERSE_SORT": _sort_array_reverse,
    -120            "LIST_VALUE": exp.Array.from_arg_list,
    -121            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    -122            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    -123            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    -124            "STR_SPLIT": exp.Split.from_arg_list,
    -125            "STRING_SPLIT": exp.Split.from_arg_list,
    -126            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    -127            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -128            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -129            "STRUCT_PACK": exp.Struct.from_arg_list,
    -130            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    -131            "UNNEST": exp.Explode.from_arg_list,
    -132        }
    -133
    -134        TYPE_TOKENS = {
    -135            *parser.Parser.TYPE_TOKENS,
    -136            TokenType.UBIGINT,
    -137            TokenType.UINT,
    -138            TokenType.USMALLINT,
    -139            TokenType.UTINYINT,
    -140        }
    -141
    -142    class Generator(generator.Generator):
    -143        JOIN_HINTS = False
    -144        TABLE_HINTS = False
    -145        STRUCT_DELIMITER = ("(", ")")
    +  3import typing as t
    +  4
    +  5from sqlglot import exp, generator, parser, tokens
    +  6from sqlglot.dialects.dialect import (
    +  7    Dialect,
    +  8    approx_count_distinct_sql,
    +  9    arrow_json_extract_scalar_sql,
    + 10    arrow_json_extract_sql,
    + 11    datestrtodate_sql,
    + 12    format_time_lambda,
    + 13    no_comment_column_constraint_sql,
    + 14    no_pivot_sql,
    + 15    no_properties_sql,
    + 16    no_safe_divide_sql,
    + 17    rename_func,
    + 18    str_position_sql,
    + 19    str_to_time_sql,
    + 20    timestamptrunc_sql,
    + 21    timestrtotime_sql,
    + 22    ts_or_ds_to_date_sql,
    + 23)
    + 24from sqlglot.helper import seq_get
    + 25from sqlglot.tokens import TokenType
    + 26
    + 27
    + 28def _ts_or_ds_add_sql(self: generator.Generator, expression: exp.TsOrDsAdd) -> str:
    + 29    this = self.sql(expression, "this")
    + 30    unit = self.sql(expression, "unit").strip("'") or "DAY"
    + 31    return f"CAST({this} AS DATE) + {self.sql(exp.Interval(this=expression.expression, unit=unit))}"
    + 32
    + 33
    + 34def _date_add_sql(self: generator.Generator, expression: exp.DateAdd) -> str:
    + 35    this = self.sql(expression, "this")
    + 36    unit = self.sql(expression, "unit").strip("'") or "DAY"
    + 37    return f"{this} + {self.sql(exp.Interval(this=expression.expression, unit=unit))}"
    + 38
    + 39
    + 40def _array_sort_sql(self: generator.Generator, expression: exp.ArraySort) -> str:
    + 41    if expression.expression:
    + 42        self.unsupported("DUCKDB ARRAY_SORT does not support a comparator")
    + 43    return f"ARRAY_SORT({self.sql(expression, 'this')})"
    + 44
    + 45
    + 46def _sort_array_sql(self: generator.Generator, expression: exp.SortArray) -> str:
    + 47    this = self.sql(expression, "this")
    + 48    if expression.args.get("asc") == exp.false():
    + 49        return f"ARRAY_REVERSE_SORT({this})"
    + 50    return f"ARRAY_SORT({this})"
    + 51
    + 52
    + 53def _sort_array_reverse(args: t.Sequence) -> exp.Expression:
    + 54    return exp.SortArray(this=seq_get(args, 0), asc=exp.false())
    + 55
    + 56
    + 57def _parse_date_diff(args: t.Sequence) -> exp.Expression:
    + 58    return exp.DateDiff(
    + 59        this=seq_get(args, 2),
    + 60        expression=seq_get(args, 1),
    + 61        unit=seq_get(args, 0),
    + 62    )
    + 63
    + 64
    + 65def _struct_sql(self: generator.Generator, expression: exp.Struct) -> str:
    + 66    args = [
    + 67        f"'{e.name or e.this.name}': {self.sql(e, 'expression')}" for e in expression.expressions
    + 68    ]
    + 69    return f"{{{', '.join(args)}}}"
    + 70
    + 71
    + 72def _datatype_sql(self: generator.Generator, expression: exp.DataType) -> str:
    + 73    if expression.this == exp.DataType.Type.ARRAY:
    + 74        return f"{self.expressions(expression, flat=True)}[]"
    + 75    return self.datatype_sql(expression)
    + 76
    + 77
    + 78def _regexp_extract_sql(self: generator.Generator, expression: exp.RegexpExtract) -> str:
    + 79    bad_args = list(filter(expression.args.get, ("position", "occurrence")))
    + 80    if bad_args:
    + 81        self.unsupported(f"REGEXP_EXTRACT does not support arg(s) {bad_args}")
    + 82
    + 83    return self.func(
    + 84        "REGEXP_EXTRACT",
    + 85        expression.args.get("this"),
    + 86        expression.args.get("expression"),
    + 87        expression.args.get("group"),
    + 88    )
    + 89
    + 90
    + 91class DuckDB(Dialect):
    + 92    class Tokenizer(tokens.Tokenizer):
    + 93        KEYWORDS = {
    + 94            **tokens.Tokenizer.KEYWORDS,
    + 95            "~": TokenType.RLIKE,
    + 96            ":=": TokenType.EQ,
    + 97            "ATTACH": TokenType.COMMAND,
    + 98            "BINARY": TokenType.VARBINARY,
    + 99            "BPCHAR": TokenType.TEXT,
    +100            "BITSTRING": TokenType.BIT,
    +101            "CHAR": TokenType.TEXT,
    +102            "CHARACTER VARYING": TokenType.TEXT,
    +103            "EXCLUDE": TokenType.EXCEPT,
    +104            "INT1": TokenType.TINYINT,
    +105            "LOGICAL": TokenType.BOOLEAN,
    +106            "NUMERIC": TokenType.DOUBLE,
    +107            "SIGNED": TokenType.INT,
    +108            "STRING": TokenType.VARCHAR,
    +109            "UBIGINT": TokenType.UBIGINT,
    +110            "UINTEGER": TokenType.UINT,
    +111            "USMALLINT": TokenType.USMALLINT,
    +112            "UTINYINT": TokenType.UTINYINT,
    +113        }
    +114
    +115    class Parser(parser.Parser):
    +116        FUNCTIONS = {
    +117            **parser.Parser.FUNCTIONS,  # type: ignore
    +118            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +119            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    +120            "ARRAY_SORT": exp.SortArray.from_arg_list,
    +121            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    +122            "DATEDIFF": _parse_date_diff,
    +123            "DATE_DIFF": _parse_date_diff,
    +124            "EPOCH": exp.TimeToUnix.from_arg_list,
    +125            "EPOCH_MS": lambda args: exp.UnixToTime(
    +126                this=exp.Div(
    +127                    this=seq_get(args, 0),
    +128                    expression=exp.Literal.number(1000),
    +129                )
    +130            ),
    +131            "LIST_REVERSE_SORT": _sort_array_reverse,
    +132            "LIST_SORT": exp.SortArray.from_arg_list,
    +133            "LIST_VALUE": exp.Array.from_arg_list,
    +134            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    +135            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    +136            "STRING_SPLIT": exp.Split.from_arg_list,
    +137            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +138            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    +139            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    +140            "STRUCT_PACK": exp.Struct.from_arg_list,
    +141            "STR_SPLIT": exp.Split.from_arg_list,
    +142            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +143            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    +144            "UNNEST": exp.Explode.from_arg_list,
    +145        }
     146
    -147        TRANSFORMS = {
    -148            **generator.Generator.TRANSFORMS,  # type: ignore
    -149            exp.ApproxDistinct: approx_count_distinct_sql,
    -150            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    -151            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -152            else rename_func("LIST_VALUE")(self, e),
    -153            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -154            exp.ArraySort: _array_sort_sql,
    -155            exp.ArraySum: rename_func("LIST_SUM"),
    -156            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    -157            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -158            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -159            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -160            exp.DataType: _datatype_sql,
    -161            exp.DateAdd: _date_add,
    -162            exp.DateDiff: lambda self, e: self.func(
    -163                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    -164            ),
    -165            exp.DateStrToDate: datestrtodate_sql,
    -166            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    -167            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    -168            exp.Explode: rename_func("UNNEST"),
    -169            exp.JSONExtract: arrow_json_extract_sql,
    -170            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -171            exp.JSONBExtract: arrow_json_extract_sql,
    -172            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    -173            exp.LogicalOr: rename_func("BOOL_OR"),
    -174            exp.LogicalAnd: rename_func("BOOL_AND"),
    -175            exp.Pivot: no_pivot_sql,
    -176            exp.Properties: no_properties_sql,
    -177            exp.RegexpExtract: _regexp_extract_sql,
    -178            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    -179            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    -180            exp.SafeDivide: no_safe_divide_sql,
    -181            exp.Split: rename_func("STR_SPLIT"),
    -182            exp.SortArray: _sort_array_sql,
    -183            exp.StrPosition: str_position_sql,
    -184            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    -185            exp.StrToTime: str_to_time_sql,
    -186            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    -187            exp.Struct: _struct_sql,
    -188            exp.TimestampTrunc: timestamptrunc_sql,
    -189            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    -190            exp.TimeStrToTime: timestrtotime_sql,
    -191            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    -192            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    -193            exp.TimeToUnix: rename_func("EPOCH"),
    -194            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    -195            exp.TsOrDsAdd: _ts_or_ds_add,
    -196            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    -197            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    -198            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    -199            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    -200            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -201        }
    -202
    -203        TYPE_MAPPING = {
    -204            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -205            exp.DataType.Type.BINARY: "BLOB",
    -206            exp.DataType.Type.CHAR: "TEXT",
    -207            exp.DataType.Type.FLOAT: "REAL",
    -208            exp.DataType.Type.NCHAR: "TEXT",
    -209            exp.DataType.Type.NVARCHAR: "TEXT",
    -210            exp.DataType.Type.UINT: "UINTEGER",
    -211            exp.DataType.Type.VARBINARY: "BLOB",
    -212            exp.DataType.Type.VARCHAR: "TEXT",
    -213        }
    -214
    -215        STAR_MAPPING = {
    -216            **generator.Generator.STAR_MAPPING,
    -217            "except": "EXCLUDE",
    +147        TYPE_TOKENS = {
    +148            *parser.Parser.TYPE_TOKENS,
    +149            TokenType.UBIGINT,
    +150            TokenType.UINT,
    +151            TokenType.USMALLINT,
    +152            TokenType.UTINYINT,
    +153        }
    +154
    +155    class Generator(generator.Generator):
    +156        JOIN_HINTS = False
    +157        TABLE_HINTS = False
    +158        LIMIT_FETCH = "LIMIT"
    +159        STRUCT_DELIMITER = ("(", ")")
    +160
    +161        TRANSFORMS = {
    +162            **generator.Generator.TRANSFORMS,
    +163            exp.ApproxDistinct: approx_count_distinct_sql,
    +164            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    +165            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +166            else rename_func("LIST_VALUE")(self, e),
    +167            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +168            exp.ArraySort: _array_sort_sql,
    +169            exp.ArraySum: rename_func("LIST_SUM"),
    +170            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    +171            exp.CurrentDate: lambda self, e: "CURRENT_DATE",
    +172            exp.CurrentTime: lambda self, e: "CURRENT_TIME",
    +173            exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP",
    +174            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    +175            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +176            exp.DayOfYear: rename_func("DAYOFYEAR"),
    +177            exp.DataType: _datatype_sql,
    +178            exp.DateAdd: _date_add_sql,
    +179            exp.DateDiff: lambda self, e: self.func(
    +180                "DATE_DIFF", f"'{e.args.get('unit', 'day')}'", e.expression, e.this
    +181            ),
    +182            exp.DateStrToDate: datestrtodate_sql,
    +183            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    +184            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    +185            exp.Explode: rename_func("UNNEST"),
    +186            exp.JSONExtract: arrow_json_extract_sql,
    +187            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +188            exp.JSONBExtract: arrow_json_extract_sql,
    +189            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    +190            exp.LogicalOr: rename_func("BOOL_OR"),
    +191            exp.LogicalAnd: rename_func("BOOL_AND"),
    +192            exp.Pivot: no_pivot_sql,
    +193            exp.Properties: no_properties_sql,
    +194            exp.RegexpExtract: _regexp_extract_sql,
    +195            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    +196            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    +197            exp.SafeDivide: no_safe_divide_sql,
    +198            exp.Split: rename_func("STR_SPLIT"),
    +199            exp.SortArray: _sort_array_sql,
    +200            exp.StrPosition: str_position_sql,
    +201            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    +202            exp.StrToTime: str_to_time_sql,
    +203            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    +204            exp.Struct: _struct_sql,
    +205            exp.TimestampTrunc: timestamptrunc_sql,
    +206            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    +207            exp.TimeStrToTime: timestrtotime_sql,
    +208            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    +209            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    +210            exp.TimeToUnix: rename_func("EPOCH"),
    +211            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    +212            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    +213            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    +214            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    +215            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    +216            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    +217            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
     218        }
     219
    -220        PROPERTIES_LOCATION = {
    -221            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -222            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -223        }
    -224
    -225        LIMIT_FETCH = "LIMIT"
    -226
    -227        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -228            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    +220        TYPE_MAPPING = {
    +221            **generator.Generator.TYPE_MAPPING,
    +222            exp.DataType.Type.BINARY: "BLOB",
    +223            exp.DataType.Type.CHAR: "TEXT",
    +224            exp.DataType.Type.FLOAT: "REAL",
    +225            exp.DataType.Type.NCHAR: "TEXT",
    +226            exp.DataType.Type.NVARCHAR: "TEXT",
    +227            exp.DataType.Type.UINT: "UINTEGER",
    +228            exp.DataType.Type.VARBINARY: "BLOB",
    +229            exp.DataType.Type.VARCHAR: "TEXT",
    +230        }
    +231
    +232        STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"}
    +233
    +234        PROPERTIES_LOCATION = {
    +235            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +236            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +237        }
    +238
    +239        def tablesample_sql(
    +240            self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS "
    +241        ) -> str:
    +242            return super().tablesample_sql(expression, seed_prefix="REPEATABLE", sep=sep)
     
    @@ -323,155 +337,158 @@
    -
     81class DuckDB(Dialect):
    - 82    class Tokenizer(tokens.Tokenizer):
    - 83        KEYWORDS = {
    - 84            **tokens.Tokenizer.KEYWORDS,
    - 85            "~": TokenType.RLIKE,
    - 86            ":=": TokenType.EQ,
    - 87            "ATTACH": TokenType.COMMAND,
    - 88            "BINARY": TokenType.VARBINARY,
    - 89            "BPCHAR": TokenType.TEXT,
    - 90            "BITSTRING": TokenType.BIT,
    - 91            "CHAR": TokenType.TEXT,
    - 92            "CHARACTER VARYING": TokenType.TEXT,
    - 93            "EXCLUDE": TokenType.EXCEPT,
    - 94            "INT1": TokenType.TINYINT,
    - 95            "LOGICAL": TokenType.BOOLEAN,
    - 96            "NUMERIC": TokenType.DOUBLE,
    - 97            "SIGNED": TokenType.INT,
    - 98            "STRING": TokenType.VARCHAR,
    - 99            "UBIGINT": TokenType.UBIGINT,
    -100            "UINTEGER": TokenType.UINT,
    -101            "USMALLINT": TokenType.USMALLINT,
    -102            "UTINYINT": TokenType.UTINYINT,
    -103        }
    -104
    -105    class Parser(parser.Parser):
    -106        FUNCTIONS = {
    -107            **parser.Parser.FUNCTIONS,  # type: ignore
    -108            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -109            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    -110            "ARRAY_SORT": exp.SortArray.from_arg_list,
    -111            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    -112            "EPOCH": exp.TimeToUnix.from_arg_list,
    -113            "EPOCH_MS": lambda args: exp.UnixToTime(
    -114                this=exp.Div(
    -115                    this=seq_get(args, 0),
    -116                    expression=exp.Literal.number(1000),
    -117                )
    -118            ),
    -119            "LIST_SORT": exp.SortArray.from_arg_list,
    -120            "LIST_REVERSE_SORT": _sort_array_reverse,
    -121            "LIST_VALUE": exp.Array.from_arg_list,
    -122            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    -123            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    -124            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    -125            "STR_SPLIT": exp.Split.from_arg_list,
    -126            "STRING_SPLIT": exp.Split.from_arg_list,
    -127            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    -128            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -129            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -130            "STRUCT_PACK": exp.Struct.from_arg_list,
    -131            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    -132            "UNNEST": exp.Explode.from_arg_list,
    -133        }
    -134
    -135        TYPE_TOKENS = {
    -136            *parser.Parser.TYPE_TOKENS,
    -137            TokenType.UBIGINT,
    -138            TokenType.UINT,
    -139            TokenType.USMALLINT,
    -140            TokenType.UTINYINT,
    -141        }
    -142
    -143    class Generator(generator.Generator):
    -144        JOIN_HINTS = False
    -145        TABLE_HINTS = False
    -146        STRUCT_DELIMITER = ("(", ")")
    +            
     92class DuckDB(Dialect):
    + 93    class Tokenizer(tokens.Tokenizer):
    + 94        KEYWORDS = {
    + 95            **tokens.Tokenizer.KEYWORDS,
    + 96            "~": TokenType.RLIKE,
    + 97            ":=": TokenType.EQ,
    + 98            "ATTACH": TokenType.COMMAND,
    + 99            "BINARY": TokenType.VARBINARY,
    +100            "BPCHAR": TokenType.TEXT,
    +101            "BITSTRING": TokenType.BIT,
    +102            "CHAR": TokenType.TEXT,
    +103            "CHARACTER VARYING": TokenType.TEXT,
    +104            "EXCLUDE": TokenType.EXCEPT,
    +105            "INT1": TokenType.TINYINT,
    +106            "LOGICAL": TokenType.BOOLEAN,
    +107            "NUMERIC": TokenType.DOUBLE,
    +108            "SIGNED": TokenType.INT,
    +109            "STRING": TokenType.VARCHAR,
    +110            "UBIGINT": TokenType.UBIGINT,
    +111            "UINTEGER": TokenType.UINT,
    +112            "USMALLINT": TokenType.USMALLINT,
    +113            "UTINYINT": TokenType.UTINYINT,
    +114        }
    +115
    +116    class Parser(parser.Parser):
    +117        FUNCTIONS = {
    +118            **parser.Parser.FUNCTIONS,  # type: ignore
    +119            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +120            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    +121            "ARRAY_SORT": exp.SortArray.from_arg_list,
    +122            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    +123            "DATEDIFF": _parse_date_diff,
    +124            "DATE_DIFF": _parse_date_diff,
    +125            "EPOCH": exp.TimeToUnix.from_arg_list,
    +126            "EPOCH_MS": lambda args: exp.UnixToTime(
    +127                this=exp.Div(
    +128                    this=seq_get(args, 0),
    +129                    expression=exp.Literal.number(1000),
    +130                )
    +131            ),
    +132            "LIST_REVERSE_SORT": _sort_array_reverse,
    +133            "LIST_SORT": exp.SortArray.from_arg_list,
    +134            "LIST_VALUE": exp.Array.from_arg_list,
    +135            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    +136            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    +137            "STRING_SPLIT": exp.Split.from_arg_list,
    +138            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +139            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    +140            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    +141            "STRUCT_PACK": exp.Struct.from_arg_list,
    +142            "STR_SPLIT": exp.Split.from_arg_list,
    +143            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +144            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    +145            "UNNEST": exp.Explode.from_arg_list,
    +146        }
     147
    -148        TRANSFORMS = {
    -149            **generator.Generator.TRANSFORMS,  # type: ignore
    -150            exp.ApproxDistinct: approx_count_distinct_sql,
    -151            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    -152            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -153            else rename_func("LIST_VALUE")(self, e),
    -154            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -155            exp.ArraySort: _array_sort_sql,
    -156            exp.ArraySum: rename_func("LIST_SUM"),
    -157            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    -158            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -159            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -160            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -161            exp.DataType: _datatype_sql,
    -162            exp.DateAdd: _date_add,
    -163            exp.DateDiff: lambda self, e: self.func(
    -164                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    -165            ),
    -166            exp.DateStrToDate: datestrtodate_sql,
    -167            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    -168            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    -169            exp.Explode: rename_func("UNNEST"),
    -170            exp.JSONExtract: arrow_json_extract_sql,
    -171            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -172            exp.JSONBExtract: arrow_json_extract_sql,
    -173            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    -174            exp.LogicalOr: rename_func("BOOL_OR"),
    -175            exp.LogicalAnd: rename_func("BOOL_AND"),
    -176            exp.Pivot: no_pivot_sql,
    -177            exp.Properties: no_properties_sql,
    -178            exp.RegexpExtract: _regexp_extract_sql,
    -179            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    -180            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    -181            exp.SafeDivide: no_safe_divide_sql,
    -182            exp.Split: rename_func("STR_SPLIT"),
    -183            exp.SortArray: _sort_array_sql,
    -184            exp.StrPosition: str_position_sql,
    -185            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    -186            exp.StrToTime: str_to_time_sql,
    -187            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    -188            exp.Struct: _struct_sql,
    -189            exp.TimestampTrunc: timestamptrunc_sql,
    -190            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    -191            exp.TimeStrToTime: timestrtotime_sql,
    -192            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    -193            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    -194            exp.TimeToUnix: rename_func("EPOCH"),
    -195            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    -196            exp.TsOrDsAdd: _ts_or_ds_add,
    -197            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    -198            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    -199            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    -200            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    -201            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -202        }
    -203
    -204        TYPE_MAPPING = {
    -205            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -206            exp.DataType.Type.BINARY: "BLOB",
    -207            exp.DataType.Type.CHAR: "TEXT",
    -208            exp.DataType.Type.FLOAT: "REAL",
    -209            exp.DataType.Type.NCHAR: "TEXT",
    -210            exp.DataType.Type.NVARCHAR: "TEXT",
    -211            exp.DataType.Type.UINT: "UINTEGER",
    -212            exp.DataType.Type.VARBINARY: "BLOB",
    -213            exp.DataType.Type.VARCHAR: "TEXT",
    -214        }
    -215
    -216        STAR_MAPPING = {
    -217            **generator.Generator.STAR_MAPPING,
    -218            "except": "EXCLUDE",
    +148        TYPE_TOKENS = {
    +149            *parser.Parser.TYPE_TOKENS,
    +150            TokenType.UBIGINT,
    +151            TokenType.UINT,
    +152            TokenType.USMALLINT,
    +153            TokenType.UTINYINT,
    +154        }
    +155
    +156    class Generator(generator.Generator):
    +157        JOIN_HINTS = False
    +158        TABLE_HINTS = False
    +159        LIMIT_FETCH = "LIMIT"
    +160        STRUCT_DELIMITER = ("(", ")")
    +161
    +162        TRANSFORMS = {
    +163            **generator.Generator.TRANSFORMS,
    +164            exp.ApproxDistinct: approx_count_distinct_sql,
    +165            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    +166            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +167            else rename_func("LIST_VALUE")(self, e),
    +168            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +169            exp.ArraySort: _array_sort_sql,
    +170            exp.ArraySum: rename_func("LIST_SUM"),
    +171            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    +172            exp.CurrentDate: lambda self, e: "CURRENT_DATE",
    +173            exp.CurrentTime: lambda self, e: "CURRENT_TIME",
    +174            exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP",
    +175            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    +176            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +177            exp.DayOfYear: rename_func("DAYOFYEAR"),
    +178            exp.DataType: _datatype_sql,
    +179            exp.DateAdd: _date_add_sql,
    +180            exp.DateDiff: lambda self, e: self.func(
    +181                "DATE_DIFF", f"'{e.args.get('unit', 'day')}'", e.expression, e.this
    +182            ),
    +183            exp.DateStrToDate: datestrtodate_sql,
    +184            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    +185            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    +186            exp.Explode: rename_func("UNNEST"),
    +187            exp.JSONExtract: arrow_json_extract_sql,
    +188            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +189            exp.JSONBExtract: arrow_json_extract_sql,
    +190            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    +191            exp.LogicalOr: rename_func("BOOL_OR"),
    +192            exp.LogicalAnd: rename_func("BOOL_AND"),
    +193            exp.Pivot: no_pivot_sql,
    +194            exp.Properties: no_properties_sql,
    +195            exp.RegexpExtract: _regexp_extract_sql,
    +196            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    +197            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    +198            exp.SafeDivide: no_safe_divide_sql,
    +199            exp.Split: rename_func("STR_SPLIT"),
    +200            exp.SortArray: _sort_array_sql,
    +201            exp.StrPosition: str_position_sql,
    +202            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    +203            exp.StrToTime: str_to_time_sql,
    +204            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    +205            exp.Struct: _struct_sql,
    +206            exp.TimestampTrunc: timestamptrunc_sql,
    +207            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    +208            exp.TimeStrToTime: timestrtotime_sql,
    +209            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    +210            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    +211            exp.TimeToUnix: rename_func("EPOCH"),
    +212            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    +213            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    +214            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    +215            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    +216            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    +217            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    +218            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
     219        }
     220
    -221        PROPERTIES_LOCATION = {
    -222            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -223            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -224        }
    -225
    -226        LIMIT_FETCH = "LIMIT"
    -227
    -228        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -229            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    +221        TYPE_MAPPING = {
    +222            **generator.Generator.TYPE_MAPPING,
    +223            exp.DataType.Type.BINARY: "BLOB",
    +224            exp.DataType.Type.CHAR: "TEXT",
    +225            exp.DataType.Type.FLOAT: "REAL",
    +226            exp.DataType.Type.NCHAR: "TEXT",
    +227            exp.DataType.Type.NVARCHAR: "TEXT",
    +228            exp.DataType.Type.UINT: "UINTEGER",
    +229            exp.DataType.Type.VARBINARY: "BLOB",
    +230            exp.DataType.Type.VARCHAR: "TEXT",
    +231        }
    +232
    +233        STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"}
    +234
    +235        PROPERTIES_LOCATION = {
    +236            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +237            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +238        }
    +239
    +240        def tablesample_sql(
    +241            self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS "
    +242        ) -> str:
    +243            return super().tablesample_sql(expression, seed_prefix="REPEATABLE", sep=sep)
     
    @@ -506,28 +523,28 @@
    -
     82    class Tokenizer(tokens.Tokenizer):
    - 83        KEYWORDS = {
    - 84            **tokens.Tokenizer.KEYWORDS,
    - 85            "~": TokenType.RLIKE,
    - 86            ":=": TokenType.EQ,
    - 87            "ATTACH": TokenType.COMMAND,
    - 88            "BINARY": TokenType.VARBINARY,
    - 89            "BPCHAR": TokenType.TEXT,
    - 90            "BITSTRING": TokenType.BIT,
    - 91            "CHAR": TokenType.TEXT,
    - 92            "CHARACTER VARYING": TokenType.TEXT,
    - 93            "EXCLUDE": TokenType.EXCEPT,
    - 94            "INT1": TokenType.TINYINT,
    - 95            "LOGICAL": TokenType.BOOLEAN,
    - 96            "NUMERIC": TokenType.DOUBLE,
    - 97            "SIGNED": TokenType.INT,
    - 98            "STRING": TokenType.VARCHAR,
    - 99            "UBIGINT": TokenType.UBIGINT,
    -100            "UINTEGER": TokenType.UINT,
    -101            "USMALLINT": TokenType.USMALLINT,
    -102            "UTINYINT": TokenType.UTINYINT,
    -103        }
    +            
     93    class Tokenizer(tokens.Tokenizer):
    + 94        KEYWORDS = {
    + 95            **tokens.Tokenizer.KEYWORDS,
    + 96            "~": TokenType.RLIKE,
    + 97            ":=": TokenType.EQ,
    + 98            "ATTACH": TokenType.COMMAND,
    + 99            "BINARY": TokenType.VARBINARY,
    +100            "BPCHAR": TokenType.TEXT,
    +101            "BITSTRING": TokenType.BIT,
    +102            "CHAR": TokenType.TEXT,
    +103            "CHARACTER VARYING": TokenType.TEXT,
    +104            "EXCLUDE": TokenType.EXCEPT,
    +105            "INT1": TokenType.TINYINT,
    +106            "LOGICAL": TokenType.BOOLEAN,
    +107            "NUMERIC": TokenType.DOUBLE,
    +108            "SIGNED": TokenType.INT,
    +109            "STRING": TokenType.VARCHAR,
    +110            "UBIGINT": TokenType.UBIGINT,
    +111            "UINTEGER": TokenType.UINT,
    +112            "USMALLINT": TokenType.USMALLINT,
    +113            "UTINYINT": TokenType.UTINYINT,
    +114        }
     
    @@ -555,43 +572,45 @@
    -
    105    class Parser(parser.Parser):
    -106        FUNCTIONS = {
    -107            **parser.Parser.FUNCTIONS,  # type: ignore
    -108            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -109            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    -110            "ARRAY_SORT": exp.SortArray.from_arg_list,
    -111            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    -112            "EPOCH": exp.TimeToUnix.from_arg_list,
    -113            "EPOCH_MS": lambda args: exp.UnixToTime(
    -114                this=exp.Div(
    -115                    this=seq_get(args, 0),
    -116                    expression=exp.Literal.number(1000),
    -117                )
    -118            ),
    -119            "LIST_SORT": exp.SortArray.from_arg_list,
    -120            "LIST_REVERSE_SORT": _sort_array_reverse,
    -121            "LIST_VALUE": exp.Array.from_arg_list,
    -122            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    -123            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    -124            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    -125            "STR_SPLIT": exp.Split.from_arg_list,
    -126            "STRING_SPLIT": exp.Split.from_arg_list,
    -127            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    -128            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -129            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    -130            "STRUCT_PACK": exp.Struct.from_arg_list,
    -131            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    -132            "UNNEST": exp.Explode.from_arg_list,
    -133        }
    -134
    -135        TYPE_TOKENS = {
    -136            *parser.Parser.TYPE_TOKENS,
    -137            TokenType.UBIGINT,
    -138            TokenType.UINT,
    -139            TokenType.USMALLINT,
    -140            TokenType.UTINYINT,
    -141        }
    +            
    116    class Parser(parser.Parser):
    +117        FUNCTIONS = {
    +118            **parser.Parser.FUNCTIONS,  # type: ignore
    +119            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +120            "ARRAY_LENGTH": exp.ArraySize.from_arg_list,
    +121            "ARRAY_SORT": exp.SortArray.from_arg_list,
    +122            "ARRAY_REVERSE_SORT": _sort_array_reverse,
    +123            "DATEDIFF": _parse_date_diff,
    +124            "DATE_DIFF": _parse_date_diff,
    +125            "EPOCH": exp.TimeToUnix.from_arg_list,
    +126            "EPOCH_MS": lambda args: exp.UnixToTime(
    +127                this=exp.Div(
    +128                    this=seq_get(args, 0),
    +129                    expression=exp.Literal.number(1000),
    +130                )
    +131            ),
    +132            "LIST_REVERSE_SORT": _sort_array_reverse,
    +133            "LIST_SORT": exp.SortArray.from_arg_list,
    +134            "LIST_VALUE": exp.Array.from_arg_list,
    +135            "REGEXP_MATCHES": exp.RegexpLike.from_arg_list,
    +136            "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"),
    +137            "STRING_SPLIT": exp.Split.from_arg_list,
    +138            "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +139            "STRING_TO_ARRAY": exp.Split.from_arg_list,
    +140            "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"),
    +141            "STRUCT_PACK": exp.Struct.from_arg_list,
    +142            "STR_SPLIT": exp.Split.from_arg_list,
    +143            "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list,
    +144            "TO_TIMESTAMP": exp.UnixToTime.from_arg_list,
    +145            "UNNEST": exp.Explode.from_arg_list,
    +146        }
    +147
    +148        TYPE_TOKENS = {
    +149            *parser.Parser.TYPE_TOKENS,
    +150            TokenType.UBIGINT,
    +151            TokenType.UINT,
    +152            TokenType.USMALLINT,
    +153            TokenType.UTINYINT,
    +154        }
     
    @@ -648,93 +667,94 @@ Default: "nulls_are_small"
    -
    143    class Generator(generator.Generator):
    -144        JOIN_HINTS = False
    -145        TABLE_HINTS = False
    -146        STRUCT_DELIMITER = ("(", ")")
    -147
    -148        TRANSFORMS = {
    -149            **generator.Generator.TRANSFORMS,  # type: ignore
    -150            exp.ApproxDistinct: approx_count_distinct_sql,
    -151            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    -152            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -153            else rename_func("LIST_VALUE")(self, e),
    -154            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    -155            exp.ArraySort: _array_sort_sql,
    -156            exp.ArraySum: rename_func("LIST_SUM"),
    -157            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    -158            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -159            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -160            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -161            exp.DataType: _datatype_sql,
    -162            exp.DateAdd: _date_add,
    -163            exp.DateDiff: lambda self, e: self.func(
    -164                "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this
    -165            ),
    -166            exp.DateStrToDate: datestrtodate_sql,
    -167            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    -168            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    -169            exp.Explode: rename_func("UNNEST"),
    -170            exp.JSONExtract: arrow_json_extract_sql,
    -171            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -172            exp.JSONBExtract: arrow_json_extract_sql,
    -173            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    -174            exp.LogicalOr: rename_func("BOOL_OR"),
    -175            exp.LogicalAnd: rename_func("BOOL_AND"),
    -176            exp.Pivot: no_pivot_sql,
    -177            exp.Properties: no_properties_sql,
    -178            exp.RegexpExtract: _regexp_extract_sql,
    -179            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    -180            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    -181            exp.SafeDivide: no_safe_divide_sql,
    -182            exp.Split: rename_func("STR_SPLIT"),
    -183            exp.SortArray: _sort_array_sql,
    -184            exp.StrPosition: str_position_sql,
    -185            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    -186            exp.StrToTime: str_to_time_sql,
    -187            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    -188            exp.Struct: _struct_sql,
    -189            exp.TimestampTrunc: timestamptrunc_sql,
    -190            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    -191            exp.TimeStrToTime: timestrtotime_sql,
    -192            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    -193            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    -194            exp.TimeToUnix: rename_func("EPOCH"),
    -195            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    -196            exp.TsOrDsAdd: _ts_or_ds_add,
    -197            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    -198            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    -199            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    -200            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    -201            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -202        }
    -203
    -204        TYPE_MAPPING = {
    -205            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -206            exp.DataType.Type.BINARY: "BLOB",
    -207            exp.DataType.Type.CHAR: "TEXT",
    -208            exp.DataType.Type.FLOAT: "REAL",
    -209            exp.DataType.Type.NCHAR: "TEXT",
    -210            exp.DataType.Type.NVARCHAR: "TEXT",
    -211            exp.DataType.Type.UINT: "UINTEGER",
    -212            exp.DataType.Type.VARBINARY: "BLOB",
    -213            exp.DataType.Type.VARCHAR: "TEXT",
    -214        }
    -215
    -216        STAR_MAPPING = {
    -217            **generator.Generator.STAR_MAPPING,
    -218            "except": "EXCLUDE",
    +            
    156    class Generator(generator.Generator):
    +157        JOIN_HINTS = False
    +158        TABLE_HINTS = False
    +159        LIMIT_FETCH = "LIMIT"
    +160        STRUCT_DELIMITER = ("(", ")")
    +161
    +162        TRANSFORMS = {
    +163            **generator.Generator.TRANSFORMS,
    +164            exp.ApproxDistinct: approx_count_distinct_sql,
    +165            exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0])
    +166            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +167            else rename_func("LIST_VALUE")(self, e),
    +168            exp.ArraySize: rename_func("ARRAY_LENGTH"),
    +169            exp.ArraySort: _array_sort_sql,
    +170            exp.ArraySum: rename_func("LIST_SUM"),
    +171            exp.CommentColumnConstraint: no_comment_column_constraint_sql,
    +172            exp.CurrentDate: lambda self, e: "CURRENT_DATE",
    +173            exp.CurrentTime: lambda self, e: "CURRENT_TIME",
    +174            exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP",
    +175            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    +176            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    +177            exp.DayOfYear: rename_func("DAYOFYEAR"),
    +178            exp.DataType: _datatype_sql,
    +179            exp.DateAdd: _date_add_sql,
    +180            exp.DateDiff: lambda self, e: self.func(
    +181                "DATE_DIFF", f"'{e.args.get('unit', 'day')}'", e.expression, e.this
    +182            ),
    +183            exp.DateStrToDate: datestrtodate_sql,
    +184            exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)",
    +185            exp.DiToDate: lambda self, e: f"CAST(STRPTIME(CAST({self.sql(e, 'this')} AS TEXT), {DuckDB.dateint_format}) AS DATE)",
    +186            exp.Explode: rename_func("UNNEST"),
    +187            exp.JSONExtract: arrow_json_extract_sql,
    +188            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +189            exp.JSONBExtract: arrow_json_extract_sql,
    +190            exp.JSONBExtractScalar: arrow_json_extract_scalar_sql,
    +191            exp.LogicalOr: rename_func("BOOL_OR"),
    +192            exp.LogicalAnd: rename_func("BOOL_AND"),
    +193            exp.Pivot: no_pivot_sql,
    +194            exp.Properties: no_properties_sql,
    +195            exp.RegexpExtract: _regexp_extract_sql,
    +196            exp.RegexpLike: rename_func("REGEXP_MATCHES"),
    +197            exp.RegexpSplit: rename_func("STR_SPLIT_REGEX"),
    +198            exp.SafeDivide: no_safe_divide_sql,
    +199            exp.Split: rename_func("STR_SPLIT"),
    +200            exp.SortArray: _sort_array_sql,
    +201            exp.StrPosition: str_position_sql,
    +202            exp.StrToDate: lambda self, e: f"CAST({str_to_time_sql(self, e)} AS DATE)",
    +203            exp.StrToTime: str_to_time_sql,
    +204            exp.StrToUnix: lambda self, e: f"EPOCH(STRPTIME({self.sql(e, 'this')}, {self.format_time(e)}))",
    +205            exp.Struct: _struct_sql,
    +206            exp.TimestampTrunc: timestamptrunc_sql,
    +207            exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)",
    +208            exp.TimeStrToTime: timestrtotime_sql,
    +209            exp.TimeStrToUnix: lambda self, e: f"EPOCH(CAST({self.sql(e, 'this')} AS TIMESTAMP))",
    +210            exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})",
    +211            exp.TimeToUnix: rename_func("EPOCH"),
    +212            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)",
    +213            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    +214            exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"),
    +215            exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})",
    +216            exp.UnixToTime: rename_func("TO_TIMESTAMP"),
    +217            exp.UnixToTimeStr: lambda self, e: f"CAST(TO_TIMESTAMP({self.sql(e, 'this')}) AS TEXT)",
    +218            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
     219        }
     220
    -221        PROPERTIES_LOCATION = {
    -222            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -223            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -224        }
    -225
    -226        LIMIT_FETCH = "LIMIT"
    -227
    -228        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -229            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    +221        TYPE_MAPPING = {
    +222            **generator.Generator.TYPE_MAPPING,
    +223            exp.DataType.Type.BINARY: "BLOB",
    +224            exp.DataType.Type.CHAR: "TEXT",
    +225            exp.DataType.Type.FLOAT: "REAL",
    +226            exp.DataType.Type.NCHAR: "TEXT",
    +227            exp.DataType.Type.NVARCHAR: "TEXT",
    +228            exp.DataType.Type.UINT: "UINTEGER",
    +229            exp.DataType.Type.VARBINARY: "BLOB",
    +230            exp.DataType.Type.VARCHAR: "TEXT",
    +231        }
    +232
    +233        STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"}
    +234
    +235        PROPERTIES_LOCATION = {
    +236            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +237            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +238        }
    +239
    +240        def tablesample_sql(
    +241            self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS "
    +242        ) -> str:
    +243            return super().tablesample_sql(expression, seed_prefix="REPEATABLE", sep=sep)
     
    @@ -787,14 +807,16 @@ Default: True
    def - tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED') -> str: + tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED', sep=' AS ') -> str:
    -
    228        def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -229            return super().tablesample_sql(expression, seed_prefix="REPEATABLE")
    +            
    240        def tablesample_sql(
    +241            self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS "
    +242        ) -> str:
    +243            return super().tablesample_sql(expression, seed_prefix="REPEATABLE", sep=sep)
     
    @@ -924,7 +946,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -933,6 +955,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/hive.html b/docs/sqlglot/dialects/hive.html index b477f0e..5266bd3 100644 --- a/docs/sqlglot/dialects/hive.html +++ b/docs/sqlglot/dialects/hive.html @@ -169,300 +169,316 @@
    81 return f"{diff_sql}{multiplier_sql}" 82 83 - 84def _array_sort(self: generator.Generator, expression: exp.ArraySort) -> str: - 85 if expression.expression: - 86 self.unsupported("Hive SORT_ARRAY does not support a comparator") - 87 return f"SORT_ARRAY({self.sql(expression, 'this')})" - 88 + 84def _json_format_sql(self: generator.Generator, expression: exp.JSONFormat) -> str: + 85 this = expression.this + 86 + 87 if not this.type: + 88 from sqlglot.optimizer.annotate_types import annotate_types 89 - 90def _property_sql(self: generator.Generator, expression: exp.Property) -> str: - 91 return f"'{expression.name}'={self.sql(expression, 'value')}" - 92 - 93 - 94def _str_to_unix(self: generator.Generator, expression: exp.StrToUnix) -> str: - 95 return self.func("UNIX_TIMESTAMP", expression.this, _time_format(self, expression)) + 90 annotate_types(this) + 91 + 92 if this.type.is_type(exp.DataType.Type.JSON): + 93 return self.sql(this) + 94 return self.func("TO_JSON", this, expression.args.get("options")) + 95 96 - 97 - 98def _str_to_date(self: generator.Generator, expression: exp.StrToDate) -> str: - 99 this = self.sql(expression, "this") -100 time_format = self.format_time(expression) -101 if time_format not in (Hive.time_format, Hive.date_format): -102 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" -103 return f"CAST({this} AS DATE)" -104 + 97def _array_sort_sql(self: generator.Generator, expression: exp.ArraySort) -> str: + 98 if expression.expression: + 99 self.unsupported("Hive SORT_ARRAY does not support a comparator") +100 return f"SORT_ARRAY({self.sql(expression, 'this')})" +101 +102 +103def _property_sql(self: generator.Generator, expression: exp.Property) -> str: +104 return f"'{expression.name}'={self.sql(expression, 'value')}" 105 -106def _str_to_time(self: generator.Generator, expression: exp.StrToTime) -> str: -107 this = self.sql(expression, "this") -108 time_format = self.format_time(expression) -109 if time_format not in (Hive.time_format, Hive.date_format): -110 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" -111 return f"CAST({this} AS TIMESTAMP)" -112 -113 -114def _time_format( -115 self: generator.Generator, expression: exp.UnixToStr | exp.StrToUnix -116) -> t.Optional[str]: -117 time_format = self.format_time(expression) -118 if time_format == Hive.time_format: -119 return None -120 return time_format -121 -122 -123def _time_to_str(self: generator.Generator, expression: exp.TimeToStr) -> str: -124 this = self.sql(expression, "this") -125 time_format = self.format_time(expression) -126 return f"DATE_FORMAT({this}, {time_format})" -127 -128 -129def _to_date_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: -130 this = self.sql(expression, "this") -131 time_format = self.format_time(expression) -132 if time_format and time_format not in (Hive.time_format, Hive.date_format): -133 return f"TO_DATE({this}, {time_format})" -134 return f"TO_DATE({this})" +106 +107def _str_to_unix_sql(self: generator.Generator, expression: exp.StrToUnix) -> str: +108 return self.func("UNIX_TIMESTAMP", expression.this, _time_format(self, expression)) +109 +110 +111def _str_to_date_sql(self: generator.Generator, expression: exp.StrToDate) -> str: +112 this = self.sql(expression, "this") +113 time_format = self.format_time(expression) +114 if time_format not in (Hive.time_format, Hive.date_format): +115 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" +116 return f"CAST({this} AS DATE)" +117 +118 +119def _str_to_time_sql(self: generator.Generator, expression: exp.StrToTime) -> str: +120 this = self.sql(expression, "this") +121 time_format = self.format_time(expression) +122 if time_format not in (Hive.time_format, Hive.date_format): +123 this = f"FROM_UNIXTIME(UNIX_TIMESTAMP({this}, {time_format}))" +124 return f"CAST({this} AS TIMESTAMP)" +125 +126 +127def _time_format( +128 self: generator.Generator, expression: exp.UnixToStr | exp.StrToUnix +129) -> t.Optional[str]: +130 time_format = self.format_time(expression) +131 if time_format == Hive.time_format: +132 return None +133 return time_format +134 135 -136 -137def _index_sql(self: generator.Generator, expression: exp.Index) -> str: -138 this = self.sql(expression, "this") -139 table = self.sql(expression, "table") -140 columns = self.sql(expression, "columns") -141 return f"{this} ON TABLE {table} {columns}" -142 -143 -144class Hive(Dialect): -145 alias_post_tablesample = True -146 -147 time_mapping = { -148 "y": "%Y", -149 "Y": "%Y", -150 "YYYY": "%Y", -151 "yyyy": "%Y", -152 "YY": "%y", -153 "yy": "%y", -154 "MMMM": "%B", -155 "MMM": "%b", -156 "MM": "%m", -157 "M": "%-m", -158 "dd": "%d", -159 "d": "%-d", -160 "HH": "%H", -161 "H": "%-H", -162 "hh": "%I", -163 "h": "%-I", -164 "mm": "%M", -165 "m": "%-M", -166 "ss": "%S", -167 "s": "%-S", -168 "SSSSSS": "%f", -169 "a": "%p", -170 "DD": "%j", -171 "D": "%-j", -172 "E": "%a", -173 "EE": "%a", -174 "EEE": "%a", -175 "EEEE": "%A", -176 } -177 -178 date_format = "'yyyy-MM-dd'" -179 dateint_format = "'yyyyMMdd'" -180 time_format = "'yyyy-MM-dd HH:mm:ss'" -181 -182 class Tokenizer(tokens.Tokenizer): -183 QUOTES = ["'", '"'] -184 IDENTIFIERS = ["`"] -185 STRING_ESCAPES = ["\\"] -186 ENCODE = "utf-8" -187 IDENTIFIER_CAN_START_WITH_DIGIT = True -188 -189 KEYWORDS = { -190 **tokens.Tokenizer.KEYWORDS, -191 "ADD ARCHIVE": TokenType.COMMAND, -192 "ADD ARCHIVES": TokenType.COMMAND, -193 "ADD FILE": TokenType.COMMAND, -194 "ADD FILES": TokenType.COMMAND, -195 "ADD JAR": TokenType.COMMAND, -196 "ADD JARS": TokenType.COMMAND, -197 "MSCK REPAIR": TokenType.COMMAND, -198 "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES, -199 } -200 -201 NUMERIC_LITERALS = { -202 "L": "BIGINT", -203 "S": "SMALLINT", -204 "Y": "TINYINT", -205 "D": "DOUBLE", -206 "F": "FLOAT", -207 "BD": "DECIMAL", -208 } -209 -210 class Parser(parser.Parser): -211 LOG_DEFAULTS_TO_LN = True -212 STRICT_CAST = False +136def _time_to_str(self: generator.Generator, expression: exp.TimeToStr) -> str: +137 this = self.sql(expression, "this") +138 time_format = self.format_time(expression) +139 return f"DATE_FORMAT({this}, {time_format})" +140 +141 +142def _to_date_sql(self: generator.Generator, expression: exp.TsOrDsToDate) -> str: +143 this = self.sql(expression, "this") +144 time_format = self.format_time(expression) +145 if time_format and time_format not in (Hive.time_format, Hive.date_format): +146 return f"TO_DATE({this}, {time_format})" +147 return f"TO_DATE({this})" +148 +149 +150def _index_sql(self: generator.Generator, expression: exp.Index) -> str: +151 this = self.sql(expression, "this") +152 table = self.sql(expression, "table") +153 columns = self.sql(expression, "columns") +154 return f"{this} ON TABLE {table} {columns}" +155 +156 +157class Hive(Dialect): +158 alias_post_tablesample = True +159 +160 time_mapping = { +161 "y": "%Y", +162 "Y": "%Y", +163 "YYYY": "%Y", +164 "yyyy": "%Y", +165 "YY": "%y", +166 "yy": "%y", +167 "MMMM": "%B", +168 "MMM": "%b", +169 "MM": "%m", +170 "M": "%-m", +171 "dd": "%d", +172 "d": "%-d", +173 "HH": "%H", +174 "H": "%-H", +175 "hh": "%I", +176 "h": "%-I", +177 "mm": "%M", +178 "m": "%-M", +179 "ss": "%S", +180 "s": "%-S", +181 "SSSSSS": "%f", +182 "a": "%p", +183 "DD": "%j", +184 "D": "%-j", +185 "E": "%a", +186 "EE": "%a", +187 "EEE": "%a", +188 "EEEE": "%A", +189 } +190 +191 date_format = "'yyyy-MM-dd'" +192 dateint_format = "'yyyyMMdd'" +193 time_format = "'yyyy-MM-dd HH:mm:ss'" +194 +195 class Tokenizer(tokens.Tokenizer): +196 QUOTES = ["'", '"'] +197 IDENTIFIERS = ["`"] +198 STRING_ESCAPES = ["\\"] +199 ENCODE = "utf-8" +200 IDENTIFIER_CAN_START_WITH_DIGIT = True +201 +202 KEYWORDS = { +203 **tokens.Tokenizer.KEYWORDS, +204 "ADD ARCHIVE": TokenType.COMMAND, +205 "ADD ARCHIVES": TokenType.COMMAND, +206 "ADD FILE": TokenType.COMMAND, +207 "ADD FILES": TokenType.COMMAND, +208 "ADD JAR": TokenType.COMMAND, +209 "ADD JARS": TokenType.COMMAND, +210 "MSCK REPAIR": TokenType.COMMAND, +211 "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES, +212 } 213 -214 FUNCTIONS = { -215 **parser.Parser.FUNCTIONS, # type: ignore -216 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, -217 "COLLECT_LIST": exp.ArrayAgg.from_arg_list, -218 "DATE_ADD": lambda args: exp.TsOrDsAdd( -219 this=seq_get(args, 0), -220 expression=seq_get(args, 1), -221 unit=exp.Literal.string("DAY"), -222 ), -223 "DATEDIFF": lambda args: exp.DateDiff( -224 this=exp.TsOrDsToDate(this=seq_get(args, 0)), -225 expression=exp.TsOrDsToDate(this=seq_get(args, 1)), -226 ), -227 "DATE_SUB": lambda args: exp.TsOrDsAdd( -228 this=seq_get(args, 0), -229 expression=exp.Mul( -230 this=seq_get(args, 1), -231 expression=exp.Literal.number(-1), -232 ), -233 unit=exp.Literal.string("DAY"), -234 ), -235 "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")( -236 [ -237 exp.TimeStrToTime(this=seq_get(args, 0)), -238 seq_get(args, 1), -239 ] -240 ), -241 "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))), -242 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), -243 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, -244 "LOCATE": locate_to_strposition, -245 "MAP": parse_var_map, -246 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), -247 "PERCENTILE": exp.Quantile.from_arg_list, -248 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, -249 "COLLECT_SET": exp.SetAgg.from_arg_list, -250 "SIZE": exp.ArraySize.from_arg_list, -251 "SPLIT": exp.RegexpSplit.from_arg_list, -252 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), -253 "TO_JSON": exp.JSONFormat.from_arg_list, -254 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), -255 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), -256 } -257 -258 PROPERTY_PARSERS = { -259 **parser.Parser.PROPERTY_PARSERS, # type: ignore -260 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( -261 expressions=self._parse_wrapped_csv(self._parse_property) -262 ), -263 } -264 -265 class Generator(generator.Generator): -266 LIMIT_FETCH = "LIMIT" -267 TABLESAMPLE_WITH_METHOD = False -268 TABLESAMPLE_SIZE_IS_PERCENT = True -269 JOIN_HINTS = False -270 TABLE_HINTS = False -271 -272 TYPE_MAPPING = { -273 **generator.Generator.TYPE_MAPPING, # type: ignore -274 exp.DataType.Type.TEXT: "STRING", -275 exp.DataType.Type.DATETIME: "TIMESTAMP", -276 exp.DataType.Type.VARBINARY: "BINARY", -277 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -278 exp.DataType.Type.BIT: "BOOLEAN", -279 } -280 -281 TRANSFORMS = { -282 **generator.Generator.TRANSFORMS, # type: ignore -283 **transforms.UNALIAS_GROUP, # type: ignore -284 **transforms.ELIMINATE_QUALIFY, # type: ignore -285 exp.Select: transforms.preprocess( -286 [transforms.eliminate_qualify, transforms.unnest_to_explode] -287 ), -288 exp.Property: _property_sql, -289 exp.ApproxDistinct: approx_count_distinct_sql, -290 exp.ArrayConcat: rename_func("CONCAT"), -291 exp.ArraySize: rename_func("SIZE"), -292 exp.ArraySort: _array_sort, -293 exp.With: no_recursive_cte_sql, -294 exp.DateAdd: _add_date_sql, -295 exp.DateDiff: _date_diff_sql, -296 exp.DateStrToDate: rename_func("TO_DATE"), -297 exp.DateSub: _add_date_sql, -298 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", -299 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", -300 exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}", -301 exp.If: if_sql, -302 exp.Index: _index_sql, -303 exp.ILike: no_ilike_sql, -304 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), -305 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), -306 exp.JSONFormat: rename_func("TO_JSON"), -307 exp.Map: var_map_sql, -308 exp.Max: max_or_greatest, -309 exp.Min: min_or_least, -310 exp.VarMap: var_map_sql, -311 exp.Create: create_with_partitions_sql, -312 exp.Quantile: rename_func("PERCENTILE"), -313 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), -314 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), -315 exp.RegexpSplit: rename_func("SPLIT"), -316 exp.SafeDivide: no_safe_divide_sql, -317 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), -318 exp.SetAgg: rename_func("COLLECT_SET"), -319 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", -320 exp.StrPosition: strposition_to_locate_sql, -321 exp.StrToDate: _str_to_date, -322 exp.StrToTime: _str_to_time, -323 exp.StrToUnix: _str_to_unix, -324 exp.StructExtract: struct_extract_sql, -325 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", -326 exp.TimeStrToDate: rename_func("TO_DATE"), -327 exp.TimeStrToTime: timestrtotime_sql, -328 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -329 exp.TimeToStr: _time_to_str, -330 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), -331 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", -332 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -333 exp.TsOrDsToDate: _to_date_sql, -334 exp.TryCast: no_trycast_sql, -335 exp.UnixToStr: lambda self, e: self.func( -336 "FROM_UNIXTIME", e.this, _time_format(self, e) -337 ), -338 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -339 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), -340 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", -341 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", -342 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), -343 exp.NumberToStr: rename_func("FORMAT_NUMBER"), -344 exp.LastDateOfMonth: rename_func("LAST_DAY"), -345 exp.National: lambda self, e: self.sql(e, "this"), -346 } -347 -348 PROPERTIES_LOCATION = { -349 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -350 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, -351 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, -352 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, -353 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -354 } -355 -356 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: -357 return self.func( -358 "COLLECT_LIST", -359 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, -360 ) -361 -362 def with_properties(self, properties: exp.Properties) -> str: -363 return self.properties( -364 properties, -365 prefix=self.seg("TBLPROPERTIES"), -366 ) -367 -368 def datatype_sql(self, expression: exp.DataType) -> str: -369 if ( -370 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) -371 and not expression.expressions -372 ): -373 expression = exp.DataType.build("text") -374 elif expression.this in exp.DataType.TEMPORAL_TYPES: -375 expression = exp.DataType.build(expression.this) -376 -377 return super().datatype_sql(expression) +214 NUMERIC_LITERALS = { +215 "L": "BIGINT", +216 "S": "SMALLINT", +217 "Y": "TINYINT", +218 "D": "DOUBLE", +219 "F": "FLOAT", +220 "BD": "DECIMAL", +221 } +222 +223 class Parser(parser.Parser): +224 LOG_DEFAULTS_TO_LN = True +225 STRICT_CAST = False +226 +227 FUNCTIONS = { +228 **parser.Parser.FUNCTIONS, # type: ignore +229 "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, +230 "COLLECT_LIST": exp.ArrayAgg.from_arg_list, +231 "DATE_ADD": lambda args: exp.TsOrDsAdd( +232 this=seq_get(args, 0), +233 expression=seq_get(args, 1), +234 unit=exp.Literal.string("DAY"), +235 ), +236 "DATEDIFF": lambda args: exp.DateDiff( +237 this=exp.TsOrDsToDate(this=seq_get(args, 0)), +238 expression=exp.TsOrDsToDate(this=seq_get(args, 1)), +239 ), +240 "DATE_SUB": lambda args: exp.TsOrDsAdd( +241 this=seq_get(args, 0), +242 expression=exp.Mul( +243 this=seq_get(args, 1), +244 expression=exp.Literal.number(-1), +245 ), +246 unit=exp.Literal.string("DAY"), +247 ), +248 "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")( +249 [ +250 exp.TimeStrToTime(this=seq_get(args, 0)), +251 seq_get(args, 1), +252 ] +253 ), +254 "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))), +255 "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True), +256 "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list, +257 "LOCATE": locate_to_strposition, +258 "MAP": parse_var_map, +259 "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)), +260 "PERCENTILE": exp.Quantile.from_arg_list, +261 "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list, +262 "COLLECT_SET": exp.SetAgg.from_arg_list, +263 "SIZE": exp.ArraySize.from_arg_list, +264 "SPLIT": exp.RegexpSplit.from_arg_list, +265 "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), +266 "TO_JSON": exp.JSONFormat.from_arg_list, +267 "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), +268 "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), +269 } +270 +271 PROPERTY_PARSERS = { +272 **parser.Parser.PROPERTY_PARSERS, # type: ignore +273 "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties( +274 expressions=self._parse_wrapped_csv(self._parse_property) +275 ), +276 } +277 +278 class Generator(generator.Generator): +279 LIMIT_FETCH = "LIMIT" +280 TABLESAMPLE_WITH_METHOD = False +281 TABLESAMPLE_SIZE_IS_PERCENT = True +282 JOIN_HINTS = False +283 TABLE_HINTS = False +284 +285 TYPE_MAPPING = { +286 **generator.Generator.TYPE_MAPPING, # type: ignore +287 exp.DataType.Type.TEXT: "STRING", +288 exp.DataType.Type.DATETIME: "TIMESTAMP", +289 exp.DataType.Type.VARBINARY: "BINARY", +290 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +291 exp.DataType.Type.BIT: "BOOLEAN", +292 } +293 +294 TRANSFORMS = { +295 **generator.Generator.TRANSFORMS, # type: ignore +296 exp.Group: transforms.preprocess([transforms.unalias_group]), +297 exp.Select: transforms.preprocess( +298 [ +299 transforms.eliminate_qualify, +300 transforms.eliminate_distinct_on, +301 transforms.unnest_to_explode, +302 ] +303 ), +304 exp.Property: _property_sql, +305 exp.ApproxDistinct: approx_count_distinct_sql, +306 exp.ArrayConcat: rename_func("CONCAT"), +307 exp.ArraySize: rename_func("SIZE"), +308 exp.ArraySort: _array_sort_sql, +309 exp.With: no_recursive_cte_sql, +310 exp.DateAdd: _add_date_sql, +311 exp.DateDiff: _date_diff_sql, +312 exp.DateStrToDate: rename_func("TO_DATE"), +313 exp.DateSub: _add_date_sql, +314 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", +315 exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", +316 exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}", +317 exp.If: if_sql, +318 exp.Index: _index_sql, +319 exp.ILike: no_ilike_sql, +320 exp.JSONExtract: rename_func("GET_JSON_OBJECT"), +321 exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), +322 exp.JSONFormat: _json_format_sql, +323 exp.Map: var_map_sql, +324 exp.Max: max_or_greatest, +325 exp.Min: min_or_least, +326 exp.VarMap: var_map_sql, +327 exp.Create: create_with_partitions_sql, +328 exp.Quantile: rename_func("PERCENTILE"), +329 exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"), +330 exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"), +331 exp.RegexpSplit: rename_func("SPLIT"), +332 exp.SafeDivide: no_safe_divide_sql, +333 exp.SchemaCommentProperty: lambda self, e: self.naked_property(e), +334 exp.SetAgg: rename_func("COLLECT_SET"), +335 exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", +336 exp.StrPosition: strposition_to_locate_sql, +337 exp.StrToDate: _str_to_date_sql, +338 exp.StrToTime: _str_to_time_sql, +339 exp.StrToUnix: _str_to_unix_sql, +340 exp.StructExtract: struct_extract_sql, +341 exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", +342 exp.TimeStrToDate: rename_func("TO_DATE"), +343 exp.TimeStrToTime: timestrtotime_sql, +344 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +345 exp.TimeToStr: _time_to_str, +346 exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), +347 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", +348 exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +349 exp.TsOrDsToDate: _to_date_sql, +350 exp.TryCast: no_trycast_sql, +351 exp.UnixToStr: lambda self, e: self.func( +352 "FROM_UNIXTIME", e.this, _time_format(self, e) +353 ), +354 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +355 exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"), +356 exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}", +357 exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}", +358 exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"), +359 exp.NumberToStr: rename_func("FORMAT_NUMBER"), +360 exp.LastDateOfMonth: rename_func("LAST_DAY"), +361 exp.National: lambda self, e: self.sql(e, "this"), +362 } +363 +364 PROPERTIES_LOCATION = { +365 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +366 exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA, +367 exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA, +368 exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA, +369 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +370 } +371 +372 def arrayagg_sql(self, expression: exp.ArrayAgg) -> str: +373 return self.func( +374 "COLLECT_LIST", +375 expression.this.this if isinstance(expression.this, exp.Order) else expression.this, +376 ) +377 +378 def with_properties(self, properties: exp.Properties) -> str: +379 return self.properties( +380 properties, +381 prefix=self.seg("TBLPROPERTIES"), +382 ) +383 +384 def datatype_sql(self, expression: exp.DataType) -> str: +385 if ( +386 expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR) +387 and not expression.expressions +388 ): +389 expression = exp.DataType.build("text") +390 elif expression.this in exp.DataType.TEMPORAL_TYPES: +391 expression = exp.DataType.build(expression.this) +392 +393 return super().datatype_sql(expression)
    @@ -478,240 +494,243 @@
    -
    145class Hive(Dialect):
    -146    alias_post_tablesample = True
    -147
    -148    time_mapping = {
    -149        "y": "%Y",
    -150        "Y": "%Y",
    -151        "YYYY": "%Y",
    -152        "yyyy": "%Y",
    -153        "YY": "%y",
    -154        "yy": "%y",
    -155        "MMMM": "%B",
    -156        "MMM": "%b",
    -157        "MM": "%m",
    -158        "M": "%-m",
    -159        "dd": "%d",
    -160        "d": "%-d",
    -161        "HH": "%H",
    -162        "H": "%-H",
    -163        "hh": "%I",
    -164        "h": "%-I",
    -165        "mm": "%M",
    -166        "m": "%-M",
    -167        "ss": "%S",
    -168        "s": "%-S",
    -169        "SSSSSS": "%f",
    -170        "a": "%p",
    -171        "DD": "%j",
    -172        "D": "%-j",
    -173        "E": "%a",
    -174        "EE": "%a",
    -175        "EEE": "%a",
    -176        "EEEE": "%A",
    -177    }
    -178
    -179    date_format = "'yyyy-MM-dd'"
    -180    dateint_format = "'yyyyMMdd'"
    -181    time_format = "'yyyy-MM-dd HH:mm:ss'"
    -182
    -183    class Tokenizer(tokens.Tokenizer):
    -184        QUOTES = ["'", '"']
    -185        IDENTIFIERS = ["`"]
    -186        STRING_ESCAPES = ["\\"]
    -187        ENCODE = "utf-8"
    -188        IDENTIFIER_CAN_START_WITH_DIGIT = True
    -189
    -190        KEYWORDS = {
    -191            **tokens.Tokenizer.KEYWORDS,
    -192            "ADD ARCHIVE": TokenType.COMMAND,
    -193            "ADD ARCHIVES": TokenType.COMMAND,
    -194            "ADD FILE": TokenType.COMMAND,
    -195            "ADD FILES": TokenType.COMMAND,
    -196            "ADD JAR": TokenType.COMMAND,
    -197            "ADD JARS": TokenType.COMMAND,
    -198            "MSCK REPAIR": TokenType.COMMAND,
    -199            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    -200        }
    -201
    -202        NUMERIC_LITERALS = {
    -203            "L": "BIGINT",
    -204            "S": "SMALLINT",
    -205            "Y": "TINYINT",
    -206            "D": "DOUBLE",
    -207            "F": "FLOAT",
    -208            "BD": "DECIMAL",
    -209        }
    -210
    -211    class Parser(parser.Parser):
    -212        LOG_DEFAULTS_TO_LN = True
    -213        STRICT_CAST = False
    +            
    158class Hive(Dialect):
    +159    alias_post_tablesample = True
    +160
    +161    time_mapping = {
    +162        "y": "%Y",
    +163        "Y": "%Y",
    +164        "YYYY": "%Y",
    +165        "yyyy": "%Y",
    +166        "YY": "%y",
    +167        "yy": "%y",
    +168        "MMMM": "%B",
    +169        "MMM": "%b",
    +170        "MM": "%m",
    +171        "M": "%-m",
    +172        "dd": "%d",
    +173        "d": "%-d",
    +174        "HH": "%H",
    +175        "H": "%-H",
    +176        "hh": "%I",
    +177        "h": "%-I",
    +178        "mm": "%M",
    +179        "m": "%-M",
    +180        "ss": "%S",
    +181        "s": "%-S",
    +182        "SSSSSS": "%f",
    +183        "a": "%p",
    +184        "DD": "%j",
    +185        "D": "%-j",
    +186        "E": "%a",
    +187        "EE": "%a",
    +188        "EEE": "%a",
    +189        "EEEE": "%A",
    +190    }
    +191
    +192    date_format = "'yyyy-MM-dd'"
    +193    dateint_format = "'yyyyMMdd'"
    +194    time_format = "'yyyy-MM-dd HH:mm:ss'"
    +195
    +196    class Tokenizer(tokens.Tokenizer):
    +197        QUOTES = ["'", '"']
    +198        IDENTIFIERS = ["`"]
    +199        STRING_ESCAPES = ["\\"]
    +200        ENCODE = "utf-8"
    +201        IDENTIFIER_CAN_START_WITH_DIGIT = True
    +202
    +203        KEYWORDS = {
    +204            **tokens.Tokenizer.KEYWORDS,
    +205            "ADD ARCHIVE": TokenType.COMMAND,
    +206            "ADD ARCHIVES": TokenType.COMMAND,
    +207            "ADD FILE": TokenType.COMMAND,
    +208            "ADD FILES": TokenType.COMMAND,
    +209            "ADD JAR": TokenType.COMMAND,
    +210            "ADD JARS": TokenType.COMMAND,
    +211            "MSCK REPAIR": TokenType.COMMAND,
    +212            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    +213        }
     214
    -215        FUNCTIONS = {
    -216            **parser.Parser.FUNCTIONS,  # type: ignore
    -217            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -218            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    -219            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    -220                this=seq_get(args, 0),
    -221                expression=seq_get(args, 1),
    -222                unit=exp.Literal.string("DAY"),
    -223            ),
    -224            "DATEDIFF": lambda args: exp.DateDiff(
    -225                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    -226                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    -227            ),
    -228            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    -229                this=seq_get(args, 0),
    -230                expression=exp.Mul(
    -231                    this=seq_get(args, 1),
    -232                    expression=exp.Literal.number(-1),
    -233                ),
    -234                unit=exp.Literal.string("DAY"),
    -235            ),
    -236            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    -237                [
    -238                    exp.TimeStrToTime(this=seq_get(args, 0)),
    -239                    seq_get(args, 1),
    -240                ]
    -241            ),
    -242            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    -243            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    -244            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    -245            "LOCATE": locate_to_strposition,
    -246            "MAP": parse_var_map,
    -247            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    -248            "PERCENTILE": exp.Quantile.from_arg_list,
    -249            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    -250            "COLLECT_SET": exp.SetAgg.from_arg_list,
    -251            "SIZE": exp.ArraySize.from_arg_list,
    -252            "SPLIT": exp.RegexpSplit.from_arg_list,
    -253            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    -254            "TO_JSON": exp.JSONFormat.from_arg_list,
    -255            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    -256            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    -257        }
    -258
    -259        PROPERTY_PARSERS = {
    -260            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -261            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    -262                expressions=self._parse_wrapped_csv(self._parse_property)
    -263            ),
    -264        }
    -265
    -266    class Generator(generator.Generator):
    -267        LIMIT_FETCH = "LIMIT"
    -268        TABLESAMPLE_WITH_METHOD = False
    -269        TABLESAMPLE_SIZE_IS_PERCENT = True
    -270        JOIN_HINTS = False
    -271        TABLE_HINTS = False
    -272
    -273        TYPE_MAPPING = {
    -274            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -275            exp.DataType.Type.TEXT: "STRING",
    -276            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -277            exp.DataType.Type.VARBINARY: "BINARY",
    -278            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -279            exp.DataType.Type.BIT: "BOOLEAN",
    -280        }
    -281
    -282        TRANSFORMS = {
    -283            **generator.Generator.TRANSFORMS,  # type: ignore
    -284            **transforms.UNALIAS_GROUP,  # type: ignore
    -285            **transforms.ELIMINATE_QUALIFY,  # type: ignore
    -286            exp.Select: transforms.preprocess(
    -287                [transforms.eliminate_qualify, transforms.unnest_to_explode]
    -288            ),
    -289            exp.Property: _property_sql,
    -290            exp.ApproxDistinct: approx_count_distinct_sql,
    -291            exp.ArrayConcat: rename_func("CONCAT"),
    -292            exp.ArraySize: rename_func("SIZE"),
    -293            exp.ArraySort: _array_sort,
    -294            exp.With: no_recursive_cte_sql,
    -295            exp.DateAdd: _add_date_sql,
    -296            exp.DateDiff: _date_diff_sql,
    -297            exp.DateStrToDate: rename_func("TO_DATE"),
    -298            exp.DateSub: _add_date_sql,
    -299            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    -300            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    -301            exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    -302            exp.If: if_sql,
    -303            exp.Index: _index_sql,
    -304            exp.ILike: no_ilike_sql,
    -305            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    -306            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    -307            exp.JSONFormat: rename_func("TO_JSON"),
    -308            exp.Map: var_map_sql,
    -309            exp.Max: max_or_greatest,
    -310            exp.Min: min_or_least,
    -311            exp.VarMap: var_map_sql,
    -312            exp.Create: create_with_partitions_sql,
    -313            exp.Quantile: rename_func("PERCENTILE"),
    -314            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    -315            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    -316            exp.RegexpSplit: rename_func("SPLIT"),
    -317            exp.SafeDivide: no_safe_divide_sql,
    -318            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    -319            exp.SetAgg: rename_func("COLLECT_SET"),
    -320            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    -321            exp.StrPosition: strposition_to_locate_sql,
    -322            exp.StrToDate: _str_to_date,
    -323            exp.StrToTime: _str_to_time,
    -324            exp.StrToUnix: _str_to_unix,
    -325            exp.StructExtract: struct_extract_sql,
    -326            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    -327            exp.TimeStrToDate: rename_func("TO_DATE"),
    -328            exp.TimeStrToTime: timestrtotime_sql,
    -329            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    -330            exp.TimeToStr: _time_to_str,
    -331            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    -332            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    -333            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -334            exp.TsOrDsToDate: _to_date_sql,
    -335            exp.TryCast: no_trycast_sql,
    -336            exp.UnixToStr: lambda self, e: self.func(
    -337                "FROM_UNIXTIME", e.this, _time_format(self, e)
    -338            ),
    -339            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -340            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    -341            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    -342            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    -343            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    -344            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    -345            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    -346            exp.National: lambda self, e: self.sql(e, "this"),
    -347        }
    -348
    -349        PROPERTIES_LOCATION = {
    -350            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -351            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -352            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -353            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -354            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -355        }
    -356
    -357        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    -358            return self.func(
    -359                "COLLECT_LIST",
    -360                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    -361            )
    -362
    -363        def with_properties(self, properties: exp.Properties) -> str:
    -364            return self.properties(
    -365                properties,
    -366                prefix=self.seg("TBLPROPERTIES"),
    -367            )
    -368
    -369        def datatype_sql(self, expression: exp.DataType) -> str:
    -370            if (
    -371                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -372                and not expression.expressions
    -373            ):
    -374                expression = exp.DataType.build("text")
    -375            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -376                expression = exp.DataType.build(expression.this)
    -377
    -378            return super().datatype_sql(expression)
    +215        NUMERIC_LITERALS = {
    +216            "L": "BIGINT",
    +217            "S": "SMALLINT",
    +218            "Y": "TINYINT",
    +219            "D": "DOUBLE",
    +220            "F": "FLOAT",
    +221            "BD": "DECIMAL",
    +222        }
    +223
    +224    class Parser(parser.Parser):
    +225        LOG_DEFAULTS_TO_LN = True
    +226        STRICT_CAST = False
    +227
    +228        FUNCTIONS = {
    +229            **parser.Parser.FUNCTIONS,  # type: ignore
    +230            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +231            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    +232            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    +233                this=seq_get(args, 0),
    +234                expression=seq_get(args, 1),
    +235                unit=exp.Literal.string("DAY"),
    +236            ),
    +237            "DATEDIFF": lambda args: exp.DateDiff(
    +238                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    +239                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    +240            ),
    +241            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    +242                this=seq_get(args, 0),
    +243                expression=exp.Mul(
    +244                    this=seq_get(args, 1),
    +245                    expression=exp.Literal.number(-1),
    +246                ),
    +247                unit=exp.Literal.string("DAY"),
    +248            ),
    +249            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    +250                [
    +251                    exp.TimeStrToTime(this=seq_get(args, 0)),
    +252                    seq_get(args, 1),
    +253                ]
    +254            ),
    +255            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    +256            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    +257            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    +258            "LOCATE": locate_to_strposition,
    +259            "MAP": parse_var_map,
    +260            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    +261            "PERCENTILE": exp.Quantile.from_arg_list,
    +262            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    +263            "COLLECT_SET": exp.SetAgg.from_arg_list,
    +264            "SIZE": exp.ArraySize.from_arg_list,
    +265            "SPLIT": exp.RegexpSplit.from_arg_list,
    +266            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    +267            "TO_JSON": exp.JSONFormat.from_arg_list,
    +268            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    +269            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    +270        }
    +271
    +272        PROPERTY_PARSERS = {
    +273            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +274            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    +275                expressions=self._parse_wrapped_csv(self._parse_property)
    +276            ),
    +277        }
    +278
    +279    class Generator(generator.Generator):
    +280        LIMIT_FETCH = "LIMIT"
    +281        TABLESAMPLE_WITH_METHOD = False
    +282        TABLESAMPLE_SIZE_IS_PERCENT = True
    +283        JOIN_HINTS = False
    +284        TABLE_HINTS = False
    +285
    +286        TYPE_MAPPING = {
    +287            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +288            exp.DataType.Type.TEXT: "STRING",
    +289            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +290            exp.DataType.Type.VARBINARY: "BINARY",
    +291            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +292            exp.DataType.Type.BIT: "BOOLEAN",
    +293        }
    +294
    +295        TRANSFORMS = {
    +296            **generator.Generator.TRANSFORMS,  # type: ignore
    +297            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +298            exp.Select: transforms.preprocess(
    +299                [
    +300                    transforms.eliminate_qualify,
    +301                    transforms.eliminate_distinct_on,
    +302                    transforms.unnest_to_explode,
    +303                ]
    +304            ),
    +305            exp.Property: _property_sql,
    +306            exp.ApproxDistinct: approx_count_distinct_sql,
    +307            exp.ArrayConcat: rename_func("CONCAT"),
    +308            exp.ArraySize: rename_func("SIZE"),
    +309            exp.ArraySort: _array_sort_sql,
    +310            exp.With: no_recursive_cte_sql,
    +311            exp.DateAdd: _add_date_sql,
    +312            exp.DateDiff: _date_diff_sql,
    +313            exp.DateStrToDate: rename_func("TO_DATE"),
    +314            exp.DateSub: _add_date_sql,
    +315            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    +316            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    +317            exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    +318            exp.If: if_sql,
    +319            exp.Index: _index_sql,
    +320            exp.ILike: no_ilike_sql,
    +321            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    +322            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    +323            exp.JSONFormat: _json_format_sql,
    +324            exp.Map: var_map_sql,
    +325            exp.Max: max_or_greatest,
    +326            exp.Min: min_or_least,
    +327            exp.VarMap: var_map_sql,
    +328            exp.Create: create_with_partitions_sql,
    +329            exp.Quantile: rename_func("PERCENTILE"),
    +330            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    +331            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    +332            exp.RegexpSplit: rename_func("SPLIT"),
    +333            exp.SafeDivide: no_safe_divide_sql,
    +334            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    +335            exp.SetAgg: rename_func("COLLECT_SET"),
    +336            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    +337            exp.StrPosition: strposition_to_locate_sql,
    +338            exp.StrToDate: _str_to_date_sql,
    +339            exp.StrToTime: _str_to_time_sql,
    +340            exp.StrToUnix: _str_to_unix_sql,
    +341            exp.StructExtract: struct_extract_sql,
    +342            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    +343            exp.TimeStrToDate: rename_func("TO_DATE"),
    +344            exp.TimeStrToTime: timestrtotime_sql,
    +345            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    +346            exp.TimeToStr: _time_to_str,
    +347            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    +348            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    +349            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +350            exp.TsOrDsToDate: _to_date_sql,
    +351            exp.TryCast: no_trycast_sql,
    +352            exp.UnixToStr: lambda self, e: self.func(
    +353                "FROM_UNIXTIME", e.this, _time_format(self, e)
    +354            ),
    +355            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +356            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    +357            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    +358            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    +359            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    +360            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    +361            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    +362            exp.National: lambda self, e: self.sql(e, "this"),
    +363        }
    +364
    +365        PROPERTIES_LOCATION = {
    +366            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +367            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +368            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +369            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +370            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +371        }
    +372
    +373        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    +374            return self.func(
    +375                "COLLECT_LIST",
    +376                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    +377            )
    +378
    +379        def with_properties(self, properties: exp.Properties) -> str:
    +380            return self.properties(
    +381                properties,
    +382                prefix=self.seg("TBLPROPERTIES"),
    +383            )
    +384
    +385        def datatype_sql(self, expression: exp.DataType) -> str:
    +386            if (
    +387                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +388                and not expression.expressions
    +389            ):
    +390                expression = exp.DataType.build("text")
    +391            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +392                expression = exp.DataType.build(expression.this)
    +393
    +394            return super().datatype_sql(expression)
     
    @@ -746,33 +765,33 @@
    -
    183    class Tokenizer(tokens.Tokenizer):
    -184        QUOTES = ["'", '"']
    -185        IDENTIFIERS = ["`"]
    -186        STRING_ESCAPES = ["\\"]
    -187        ENCODE = "utf-8"
    -188        IDENTIFIER_CAN_START_WITH_DIGIT = True
    -189
    -190        KEYWORDS = {
    -191            **tokens.Tokenizer.KEYWORDS,
    -192            "ADD ARCHIVE": TokenType.COMMAND,
    -193            "ADD ARCHIVES": TokenType.COMMAND,
    -194            "ADD FILE": TokenType.COMMAND,
    -195            "ADD FILES": TokenType.COMMAND,
    -196            "ADD JAR": TokenType.COMMAND,
    -197            "ADD JARS": TokenType.COMMAND,
    -198            "MSCK REPAIR": TokenType.COMMAND,
    -199            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    -200        }
    -201
    -202        NUMERIC_LITERALS = {
    -203            "L": "BIGINT",
    -204            "S": "SMALLINT",
    -205            "Y": "TINYINT",
    -206            "D": "DOUBLE",
    -207            "F": "FLOAT",
    -208            "BD": "DECIMAL",
    -209        }
    +            
    196    class Tokenizer(tokens.Tokenizer):
    +197        QUOTES = ["'", '"']
    +198        IDENTIFIERS = ["`"]
    +199        STRING_ESCAPES = ["\\"]
    +200        ENCODE = "utf-8"
    +201        IDENTIFIER_CAN_START_WITH_DIGIT = True
    +202
    +203        KEYWORDS = {
    +204            **tokens.Tokenizer.KEYWORDS,
    +205            "ADD ARCHIVE": TokenType.COMMAND,
    +206            "ADD ARCHIVES": TokenType.COMMAND,
    +207            "ADD FILE": TokenType.COMMAND,
    +208            "ADD FILES": TokenType.COMMAND,
    +209            "ADD JAR": TokenType.COMMAND,
    +210            "ADD JARS": TokenType.COMMAND,
    +211            "MSCK REPAIR": TokenType.COMMAND,
    +212            "WITH SERDEPROPERTIES": TokenType.SERDE_PROPERTIES,
    +213        }
    +214
    +215        NUMERIC_LITERALS = {
    +216            "L": "BIGINT",
    +217            "S": "SMALLINT",
    +218            "Y": "TINYINT",
    +219            "D": "DOUBLE",
    +220            "F": "FLOAT",
    +221            "BD": "DECIMAL",
    +222        }
     
    @@ -800,60 +819,60 @@
    -
    211    class Parser(parser.Parser):
    -212        LOG_DEFAULTS_TO_LN = True
    -213        STRICT_CAST = False
    -214
    -215        FUNCTIONS = {
    -216            **parser.Parser.FUNCTIONS,  # type: ignore
    -217            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -218            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    -219            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    -220                this=seq_get(args, 0),
    -221                expression=seq_get(args, 1),
    -222                unit=exp.Literal.string("DAY"),
    -223            ),
    -224            "DATEDIFF": lambda args: exp.DateDiff(
    -225                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    -226                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    -227            ),
    -228            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    -229                this=seq_get(args, 0),
    -230                expression=exp.Mul(
    -231                    this=seq_get(args, 1),
    -232                    expression=exp.Literal.number(-1),
    -233                ),
    -234                unit=exp.Literal.string("DAY"),
    -235            ),
    -236            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    -237                [
    -238                    exp.TimeStrToTime(this=seq_get(args, 0)),
    -239                    seq_get(args, 1),
    -240                ]
    -241            ),
    -242            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    -243            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    -244            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    -245            "LOCATE": locate_to_strposition,
    -246            "MAP": parse_var_map,
    -247            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    -248            "PERCENTILE": exp.Quantile.from_arg_list,
    -249            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    -250            "COLLECT_SET": exp.SetAgg.from_arg_list,
    -251            "SIZE": exp.ArraySize.from_arg_list,
    -252            "SPLIT": exp.RegexpSplit.from_arg_list,
    -253            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    -254            "TO_JSON": exp.JSONFormat.from_arg_list,
    -255            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    -256            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    -257        }
    -258
    -259        PROPERTY_PARSERS = {
    -260            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    -261            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    -262                expressions=self._parse_wrapped_csv(self._parse_property)
    -263            ),
    -264        }
    +            
    224    class Parser(parser.Parser):
    +225        LOG_DEFAULTS_TO_LN = True
    +226        STRICT_CAST = False
    +227
    +228        FUNCTIONS = {
    +229            **parser.Parser.FUNCTIONS,  # type: ignore
    +230            "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +231            "COLLECT_LIST": exp.ArrayAgg.from_arg_list,
    +232            "DATE_ADD": lambda args: exp.TsOrDsAdd(
    +233                this=seq_get(args, 0),
    +234                expression=seq_get(args, 1),
    +235                unit=exp.Literal.string("DAY"),
    +236            ),
    +237            "DATEDIFF": lambda args: exp.DateDiff(
    +238                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    +239                expression=exp.TsOrDsToDate(this=seq_get(args, 1)),
    +240            ),
    +241            "DATE_SUB": lambda args: exp.TsOrDsAdd(
    +242                this=seq_get(args, 0),
    +243                expression=exp.Mul(
    +244                    this=seq_get(args, 1),
    +245                    expression=exp.Literal.number(-1),
    +246                ),
    +247                unit=exp.Literal.string("DAY"),
    +248            ),
    +249            "DATE_FORMAT": lambda args: format_time_lambda(exp.TimeToStr, "hive")(
    +250                [
    +251                    exp.TimeStrToTime(this=seq_get(args, 0)),
    +252                    seq_get(args, 1),
    +253                ]
    +254            ),
    +255            "DAY": lambda args: exp.Day(this=exp.TsOrDsToDate(this=seq_get(args, 0))),
    +256            "FROM_UNIXTIME": format_time_lambda(exp.UnixToStr, "hive", True),
    +257            "GET_JSON_OBJECT": exp.JSONExtractScalar.from_arg_list,
    +258            "LOCATE": locate_to_strposition,
    +259            "MAP": parse_var_map,
    +260            "MONTH": lambda args: exp.Month(this=exp.TsOrDsToDate.from_arg_list(args)),
    +261            "PERCENTILE": exp.Quantile.from_arg_list,
    +262            "PERCENTILE_APPROX": exp.ApproxQuantile.from_arg_list,
    +263            "COLLECT_SET": exp.SetAgg.from_arg_list,
    +264            "SIZE": exp.ArraySize.from_arg_list,
    +265            "SPLIT": exp.RegexpSplit.from_arg_list,
    +266            "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"),
    +267            "TO_JSON": exp.JSONFormat.from_arg_list,
    +268            "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True),
    +269            "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)),
    +270        }
    +271
    +272        PROPERTY_PARSERS = {
    +273            **parser.Parser.PROPERTY_PARSERS,  # type: ignore
    +274            "WITH SERDEPROPERTIES": lambda self: exp.SerdeProperties(
    +275                expressions=self._parse_wrapped_csv(self._parse_property)
    +276            ),
    +277        }
     
    @@ -910,119 +929,122 @@ Default: "nulls_are_small"
    -
    266    class Generator(generator.Generator):
    -267        LIMIT_FETCH = "LIMIT"
    -268        TABLESAMPLE_WITH_METHOD = False
    -269        TABLESAMPLE_SIZE_IS_PERCENT = True
    -270        JOIN_HINTS = False
    -271        TABLE_HINTS = False
    -272
    -273        TYPE_MAPPING = {
    -274            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -275            exp.DataType.Type.TEXT: "STRING",
    -276            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -277            exp.DataType.Type.VARBINARY: "BINARY",
    -278            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -279            exp.DataType.Type.BIT: "BOOLEAN",
    -280        }
    -281
    -282        TRANSFORMS = {
    -283            **generator.Generator.TRANSFORMS,  # type: ignore
    -284            **transforms.UNALIAS_GROUP,  # type: ignore
    -285            **transforms.ELIMINATE_QUALIFY,  # type: ignore
    -286            exp.Select: transforms.preprocess(
    -287                [transforms.eliminate_qualify, transforms.unnest_to_explode]
    -288            ),
    -289            exp.Property: _property_sql,
    -290            exp.ApproxDistinct: approx_count_distinct_sql,
    -291            exp.ArrayConcat: rename_func("CONCAT"),
    -292            exp.ArraySize: rename_func("SIZE"),
    -293            exp.ArraySort: _array_sort,
    -294            exp.With: no_recursive_cte_sql,
    -295            exp.DateAdd: _add_date_sql,
    -296            exp.DateDiff: _date_diff_sql,
    -297            exp.DateStrToDate: rename_func("TO_DATE"),
    -298            exp.DateSub: _add_date_sql,
    -299            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    -300            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    -301            exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    -302            exp.If: if_sql,
    -303            exp.Index: _index_sql,
    -304            exp.ILike: no_ilike_sql,
    -305            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    -306            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    -307            exp.JSONFormat: rename_func("TO_JSON"),
    -308            exp.Map: var_map_sql,
    -309            exp.Max: max_or_greatest,
    -310            exp.Min: min_or_least,
    -311            exp.VarMap: var_map_sql,
    -312            exp.Create: create_with_partitions_sql,
    -313            exp.Quantile: rename_func("PERCENTILE"),
    -314            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    -315            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    -316            exp.RegexpSplit: rename_func("SPLIT"),
    -317            exp.SafeDivide: no_safe_divide_sql,
    -318            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    -319            exp.SetAgg: rename_func("COLLECT_SET"),
    -320            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    -321            exp.StrPosition: strposition_to_locate_sql,
    -322            exp.StrToDate: _str_to_date,
    -323            exp.StrToTime: _str_to_time,
    -324            exp.StrToUnix: _str_to_unix,
    -325            exp.StructExtract: struct_extract_sql,
    -326            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    -327            exp.TimeStrToDate: rename_func("TO_DATE"),
    -328            exp.TimeStrToTime: timestrtotime_sql,
    -329            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    -330            exp.TimeToStr: _time_to_str,
    -331            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    -332            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    -333            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -334            exp.TsOrDsToDate: _to_date_sql,
    -335            exp.TryCast: no_trycast_sql,
    -336            exp.UnixToStr: lambda self, e: self.func(
    -337                "FROM_UNIXTIME", e.this, _time_format(self, e)
    -338            ),
    -339            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -340            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    -341            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    -342            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    -343            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    -344            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    -345            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    -346            exp.National: lambda self, e: self.sql(e, "this"),
    -347        }
    -348
    -349        PROPERTIES_LOCATION = {
    -350            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -351            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -352            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    -353            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    -354            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -355        }
    -356
    -357        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    -358            return self.func(
    -359                "COLLECT_LIST",
    -360                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    -361            )
    -362
    -363        def with_properties(self, properties: exp.Properties) -> str:
    -364            return self.properties(
    -365                properties,
    -366                prefix=self.seg("TBLPROPERTIES"),
    -367            )
    -368
    -369        def datatype_sql(self, expression: exp.DataType) -> str:
    -370            if (
    -371                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -372                and not expression.expressions
    -373            ):
    -374                expression = exp.DataType.build("text")
    -375            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -376                expression = exp.DataType.build(expression.this)
    -377
    -378            return super().datatype_sql(expression)
    +            
    279    class Generator(generator.Generator):
    +280        LIMIT_FETCH = "LIMIT"
    +281        TABLESAMPLE_WITH_METHOD = False
    +282        TABLESAMPLE_SIZE_IS_PERCENT = True
    +283        JOIN_HINTS = False
    +284        TABLE_HINTS = False
    +285
    +286        TYPE_MAPPING = {
    +287            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +288            exp.DataType.Type.TEXT: "STRING",
    +289            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +290            exp.DataType.Type.VARBINARY: "BINARY",
    +291            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +292            exp.DataType.Type.BIT: "BOOLEAN",
    +293        }
    +294
    +295        TRANSFORMS = {
    +296            **generator.Generator.TRANSFORMS,  # type: ignore
    +297            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +298            exp.Select: transforms.preprocess(
    +299                [
    +300                    transforms.eliminate_qualify,
    +301                    transforms.eliminate_distinct_on,
    +302                    transforms.unnest_to_explode,
    +303                ]
    +304            ),
    +305            exp.Property: _property_sql,
    +306            exp.ApproxDistinct: approx_count_distinct_sql,
    +307            exp.ArrayConcat: rename_func("CONCAT"),
    +308            exp.ArraySize: rename_func("SIZE"),
    +309            exp.ArraySort: _array_sort_sql,
    +310            exp.With: no_recursive_cte_sql,
    +311            exp.DateAdd: _add_date_sql,
    +312            exp.DateDiff: _date_diff_sql,
    +313            exp.DateStrToDate: rename_func("TO_DATE"),
    +314            exp.DateSub: _add_date_sql,
    +315            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)",
    +316            exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})",
    +317            exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}",
    +318            exp.If: if_sql,
    +319            exp.Index: _index_sql,
    +320            exp.ILike: no_ilike_sql,
    +321            exp.JSONExtract: rename_func("GET_JSON_OBJECT"),
    +322            exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"),
    +323            exp.JSONFormat: _json_format_sql,
    +324            exp.Map: var_map_sql,
    +325            exp.Max: max_or_greatest,
    +326            exp.Min: min_or_least,
    +327            exp.VarMap: var_map_sql,
    +328            exp.Create: create_with_partitions_sql,
    +329            exp.Quantile: rename_func("PERCENTILE"),
    +330            exp.ApproxQuantile: rename_func("PERCENTILE_APPROX"),
    +331            exp.RegexpLike: lambda self, e: self.binary(e, "RLIKE"),
    +332            exp.RegexpSplit: rename_func("SPLIT"),
    +333            exp.SafeDivide: no_safe_divide_sql,
    +334            exp.SchemaCommentProperty: lambda self, e: self.naked_property(e),
    +335            exp.SetAgg: rename_func("COLLECT_SET"),
    +336            exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))",
    +337            exp.StrPosition: strposition_to_locate_sql,
    +338            exp.StrToDate: _str_to_date_sql,
    +339            exp.StrToTime: _str_to_time_sql,
    +340            exp.StrToUnix: _str_to_unix_sql,
    +341            exp.StructExtract: struct_extract_sql,
    +342            exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}",
    +343            exp.TimeStrToDate: rename_func("TO_DATE"),
    +344            exp.TimeStrToTime: timestrtotime_sql,
    +345            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    +346            exp.TimeToStr: _time_to_str,
    +347            exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"),
    +348            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)",
    +349            exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +350            exp.TsOrDsToDate: _to_date_sql,
    +351            exp.TryCast: no_trycast_sql,
    +352            exp.UnixToStr: lambda self, e: self.func(
    +353                "FROM_UNIXTIME", e.this, _time_format(self, e)
    +354            ),
    +355            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +356            exp.UnixToTimeStr: rename_func("FROM_UNIXTIME"),
    +357            exp.PartitionedByProperty: lambda self, e: f"PARTITIONED BY {self.sql(e, 'this')}",
    +358            exp.RowFormatSerdeProperty: lambda self, e: f"ROW FORMAT SERDE {self.sql(e, 'this')}",
    +359            exp.SerdeProperties: lambda self, e: self.properties(e, prefix="WITH SERDEPROPERTIES"),
    +360            exp.NumberToStr: rename_func("FORMAT_NUMBER"),
    +361            exp.LastDateOfMonth: rename_func("LAST_DAY"),
    +362            exp.National: lambda self, e: self.sql(e, "this"),
    +363        }
    +364
    +365        PROPERTIES_LOCATION = {
    +366            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +367            exp.FileFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +368            exp.PartitionedByProperty: exp.Properties.Location.POST_SCHEMA,
    +369            exp.TableFormatProperty: exp.Properties.Location.POST_SCHEMA,
    +370            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +371        }
    +372
    +373        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    +374            return self.func(
    +375                "COLLECT_LIST",
    +376                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    +377            )
    +378
    +379        def with_properties(self, properties: exp.Properties) -> str:
    +380            return self.properties(
    +381                properties,
    +382                prefix=self.seg("TBLPROPERTIES"),
    +383            )
    +384
    +385        def datatype_sql(self, expression: exp.DataType) -> str:
    +386            if (
    +387                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +388                and not expression.expressions
    +389            ):
    +390                expression = exp.DataType.build("text")
    +391            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +392                expression = exp.DataType.build(expression.this)
    +393
    +394            return super().datatype_sql(expression)
     
    @@ -1081,11 +1103,11 @@ Default: True
    -
    357        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    -358            return self.func(
    -359                "COLLECT_LIST",
    -360                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    -361            )
    +            
    373        def arrayagg_sql(self, expression: exp.ArrayAgg) -> str:
    +374            return self.func(
    +375                "COLLECT_LIST",
    +376                expression.this.this if isinstance(expression.this, exp.Order) else expression.this,
    +377            )
     
    @@ -1103,11 +1125,11 @@ Default: True
    -
    363        def with_properties(self, properties: exp.Properties) -> str:
    -364            return self.properties(
    -365                properties,
    -366                prefix=self.seg("TBLPROPERTIES"),
    -367            )
    +            
    379        def with_properties(self, properties: exp.Properties) -> str:
    +380            return self.properties(
    +381                properties,
    +382                prefix=self.seg("TBLPROPERTIES"),
    +383            )
     
    @@ -1125,16 +1147,16 @@ Default: True
    -
    369        def datatype_sql(self, expression: exp.DataType) -> str:
    -370            if (
    -371                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    -372                and not expression.expressions
    -373            ):
    -374                expression = exp.DataType.build("text")
    -375            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    -376                expression = exp.DataType.build(expression.this)
    -377
    -378            return super().datatype_sql(expression)
    +            
    385        def datatype_sql(self, expression: exp.DataType) -> str:
    +386            if (
    +387                expression.this in (exp.DataType.Type.VARCHAR, exp.DataType.Type.NVARCHAR)
    +388                and not expression.expressions
    +389            ):
    +390                expression = exp.DataType.build("text")
    +391            elif expression.this in exp.DataType.TEMPORAL_TYPES:
    +392                expression = exp.DataType.build(expression.this)
    +393
    +394            return super().datatype_sql(expression)
     
    @@ -1263,7 +1285,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1272,6 +1294,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/mysql.html b/docs/sqlglot/dialects/mysql.html index d87f91a..0e62bcc 100644 --- a/docs/sqlglot/dialects/mysql.html +++ b/docs/sqlglot/dialects/mysql.html @@ -82,7 +82,7 @@
      1from __future__ import annotations
       2
    -  3from sqlglot import exp, generator, parser, tokens
    +  3from sqlglot import exp, generator, parser, tokens, transforms
       4from sqlglot.dialects.dialect import (
       5    Dialect,
       6    arrow_json_extract_scalar_sql,
    @@ -485,84 +485,85 @@
     403            exp.Min: min_or_least,
     404            exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"),
     405            exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")),
    -406            exp.StrPosition: strposition_to_locate_sql,
    -407            exp.StrToDate: _str_to_date_sql,
    -408            exp.StrToTime: _str_to_date_sql,
    -409            exp.TableSample: no_tablesample_sql,
    -410            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    -411            exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)),
    -412            exp.Trim: _trim_sql,
    -413            exp.TryCast: no_trycast_sql,
    -414            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -415        }
    -416
    -417        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    -418        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    -419        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    -420        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    -421        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    -422
    -423        PROPERTIES_LOCATION = {
    -424            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -425            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -426            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -427        }
    -428
    -429        LIMIT_FETCH = "LIMIT"
    -430
    -431        def show_sql(self, expression: exp.Show) -> str:
    -432            this = f" {expression.name}"
    -433            full = " FULL" if expression.args.get("full") else ""
    -434            global_ = " GLOBAL" if expression.args.get("global") else ""
    -435
    -436            target = self.sql(expression, "target")
    -437            target = f" {target}" if target else ""
    -438            if expression.name in {"COLUMNS", "INDEX"}:
    -439                target = f" FROM{target}"
    -440            elif expression.name == "GRANTS":
    -441                target = f" FOR{target}"
    -442
    -443            db = self._prefixed_sql("FROM", expression, "db")
    -444
    -445            like = self._prefixed_sql("LIKE", expression, "like")
    -446            where = self.sql(expression, "where")
    -447
    -448            types = self.expressions(expression, key="types")
    -449            types = f" {types}" if types else types
    -450            query = self._prefixed_sql("FOR QUERY", expression, "query")
    -451
    -452            if expression.name == "PROFILE":
    -453                offset = self._prefixed_sql("OFFSET", expression, "offset")
    -454                limit = self._prefixed_sql("LIMIT", expression, "limit")
    -455            else:
    -456                offset = ""
    -457                limit = self._oldstyle_limit_sql(expression)
    -458
    -459            log = self._prefixed_sql("IN", expression, "log")
    -460            position = self._prefixed_sql("FROM", expression, "position")
    -461
    -462            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    -463
    -464            if expression.name == "ENGINE":
    -465                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    -466            else:
    -467                mutex_or_status = ""
    -468
    -469            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    -470
    -471        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    -472            sql = self.sql(expression, arg)
    -473            if not sql:
    -474                return ""
    -475            return f" {prefix} {sql}"
    -476
    -477        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    -478            limit = self.sql(expression, "limit")
    -479            offset = self.sql(expression, "offset")
    -480            if limit:
    -481                limit_offset = f"{offset}, {limit}" if offset else limit
    -482                return f" LIMIT {limit_offset}"
    -483            return ""
    +406            exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]),
    +407            exp.StrPosition: strposition_to_locate_sql,
    +408            exp.StrToDate: _str_to_date_sql,
    +409            exp.StrToTime: _str_to_date_sql,
    +410            exp.TableSample: no_tablesample_sql,
    +411            exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"),
    +412            exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)),
    +413            exp.Trim: _trim_sql,
    +414            exp.TryCast: no_trycast_sql,
    +415            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    +416        }
    +417
    +418        TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy()
    +419        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT)
    +420        TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT)
    +421        TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB)
    +422        TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB)
    +423
    +424        PROPERTIES_LOCATION = {
    +425            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +426            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +427            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +428        }
    +429
    +430        LIMIT_FETCH = "LIMIT"
    +431
    +432        def show_sql(self, expression: exp.Show) -> str:
    +433            this = f" {expression.name}"
    +434            full = " FULL" if expression.args.get("full") else ""
    +435            global_ = " GLOBAL" if expression.args.get("global") else ""
    +436
    +437            target = self.sql(expression, "target")
    +438            target = f" {target}" if target else ""
    +439            if expression.name in {"COLUMNS", "INDEX"}:
    +440                target = f" FROM{target}"
    +441            elif expression.name == "GRANTS":
    +442                target = f" FOR{target}"
    +443
    +444            db = self._prefixed_sql("FROM", expression, "db")
    +445
    +446            like = self._prefixed_sql("LIKE", expression, "like")
    +447            where = self.sql(expression, "where")
    +448
    +449            types = self.expressions(expression, key="types")
    +450            types = f" {types}" if types else types
    +451            query = self._prefixed_sql("FOR QUERY", expression, "query")
    +452
    +453            if expression.name == "PROFILE":
    +454                offset = self._prefixed_sql("OFFSET", expression, "offset")
    +455                limit = self._prefixed_sql("LIMIT", expression, "limit")
    +456            else:
    +457                offset = ""
    +458                limit = self._oldstyle_limit_sql(expression)
    +459
    +460            log = self._prefixed_sql("IN", expression, "log")
    +461            position = self._prefixed_sql("FROM", expression, "position")
    +462
    +463            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    +464
    +465            if expression.name == "ENGINE":
    +466                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    +467            else:
    +468                mutex_or_status = ""
    +469
    +470            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    +471
    +472        def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str:
    +473            sql = self.sql(expression, arg)
    +474            if not sql:
    +475                return ""
    +476            return f" {prefix} {sql}"
    +477
    +478        def _oldstyle_limit_sql(self, expression: exp.Show) -> str:
    +479            limit = self.sql(expression, "limit")
    +480            offset = self.sql(expression, "offset")
    +481            if limit:
    +482                limit_offset = f"{offset}, {limit}" if offset else limit
    +483                return f" LIMIT {limit_offset}"
    +484            return ""
     
    @@ -891,84 +892,85 @@
    404 exp.Min: min_or_least, 405 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), 406 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), -407 exp.StrPosition: strposition_to_locate_sql, -408 exp.StrToDate: _str_to_date_sql, -409 exp.StrToTime: _str_to_date_sql, -410 exp.TableSample: no_tablesample_sql, -411 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -412 exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)), -413 exp.Trim: _trim_sql, -414 exp.TryCast: no_trycast_sql, -415 exp.WeekOfYear: rename_func("WEEKOFYEAR"), -416 } -417 -418 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() -419 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) -420 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) -421 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) -422 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) -423 -424 PROPERTIES_LOCATION = { -425 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -426 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -427 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -428 } -429 -430 LIMIT_FETCH = "LIMIT" -431 -432 def show_sql(self, expression: exp.Show) -> str: -433 this = f" {expression.name}" -434 full = " FULL" if expression.args.get("full") else "" -435 global_ = " GLOBAL" if expression.args.get("global") else "" -436 -437 target = self.sql(expression, "target") -438 target = f" {target}" if target else "" -439 if expression.name in {"COLUMNS", "INDEX"}: -440 target = f" FROM{target}" -441 elif expression.name == "GRANTS": -442 target = f" FOR{target}" -443 -444 db = self._prefixed_sql("FROM", expression, "db") -445 -446 like = self._prefixed_sql("LIKE", expression, "like") -447 where = self.sql(expression, "where") -448 -449 types = self.expressions(expression, key="types") -450 types = f" {types}" if types else types -451 query = self._prefixed_sql("FOR QUERY", expression, "query") -452 -453 if expression.name == "PROFILE": -454 offset = self._prefixed_sql("OFFSET", expression, "offset") -455 limit = self._prefixed_sql("LIMIT", expression, "limit") -456 else: -457 offset = "" -458 limit = self._oldstyle_limit_sql(expression) -459 -460 log = self._prefixed_sql("IN", expression, "log") -461 position = self._prefixed_sql("FROM", expression, "position") -462 -463 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") -464 -465 if expression.name == "ENGINE": -466 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" -467 else: -468 mutex_or_status = "" -469 -470 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" -471 -472 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: -473 sql = self.sql(expression, arg) -474 if not sql: -475 return "" -476 return f" {prefix} {sql}" -477 -478 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: -479 limit = self.sql(expression, "limit") -480 offset = self.sql(expression, "offset") -481 if limit: -482 limit_offset = f"{offset}, {limit}" if offset else limit -483 return f" LIMIT {limit_offset}" -484 return "" +407 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +408 exp.StrPosition: strposition_to_locate_sql, +409 exp.StrToDate: _str_to_date_sql, +410 exp.StrToTime: _str_to_date_sql, +411 exp.TableSample: no_tablesample_sql, +412 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +413 exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)), +414 exp.Trim: _trim_sql, +415 exp.TryCast: no_trycast_sql, +416 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +417 } +418 +419 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +420 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +421 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +422 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +423 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +424 +425 PROPERTIES_LOCATION = { +426 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +427 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +428 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +429 } +430 +431 LIMIT_FETCH = "LIMIT" +432 +433 def show_sql(self, expression: exp.Show) -> str: +434 this = f" {expression.name}" +435 full = " FULL" if expression.args.get("full") else "" +436 global_ = " GLOBAL" if expression.args.get("global") else "" +437 +438 target = self.sql(expression, "target") +439 target = f" {target}" if target else "" +440 if expression.name in {"COLUMNS", "INDEX"}: +441 target = f" FROM{target}" +442 elif expression.name == "GRANTS": +443 target = f" FOR{target}" +444 +445 db = self._prefixed_sql("FROM", expression, "db") +446 +447 like = self._prefixed_sql("LIKE", expression, "like") +448 where = self.sql(expression, "where") +449 +450 types = self.expressions(expression, key="types") +451 types = f" {types}" if types else types +452 query = self._prefixed_sql("FOR QUERY", expression, "query") +453 +454 if expression.name == "PROFILE": +455 offset = self._prefixed_sql("OFFSET", expression, "offset") +456 limit = self._prefixed_sql("LIMIT", expression, "limit") +457 else: +458 offset = "" +459 limit = self._oldstyle_limit_sql(expression) +460 +461 log = self._prefixed_sql("IN", expression, "log") +462 position = self._prefixed_sql("FROM", expression, "position") +463 +464 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +465 +466 if expression.name == "ENGINE": +467 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +468 else: +469 mutex_or_status = "" +470 +471 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +472 +473 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: +474 sql = self.sql(expression, arg) +475 if not sql: +476 return "" +477 return f" {prefix} {sql}" +478 +479 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: +480 limit = self.sql(expression, "limit") +481 offset = self.sql(expression, "offset") +482 if limit: +483 limit_offset = f"{offset}, {limit}" if offset else limit +484 return f" LIMIT {limit_offset}" +485 return ""
    @@ -1378,84 +1380,85 @@ Default: "nulls_are_small" 404 exp.Min: min_or_least, 405 exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), 406 exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), -407 exp.StrPosition: strposition_to_locate_sql, -408 exp.StrToDate: _str_to_date_sql, -409 exp.StrToTime: _str_to_date_sql, -410 exp.TableSample: no_tablesample_sql, -411 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), -412 exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)), -413 exp.Trim: _trim_sql, -414 exp.TryCast: no_trycast_sql, -415 exp.WeekOfYear: rename_func("WEEKOFYEAR"), -416 } -417 -418 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() -419 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) -420 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) -421 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) -422 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) -423 -424 PROPERTIES_LOCATION = { -425 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -426 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, -427 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -428 } -429 -430 LIMIT_FETCH = "LIMIT" -431 -432 def show_sql(self, expression: exp.Show) -> str: -433 this = f" {expression.name}" -434 full = " FULL" if expression.args.get("full") else "" -435 global_ = " GLOBAL" if expression.args.get("global") else "" -436 -437 target = self.sql(expression, "target") -438 target = f" {target}" if target else "" -439 if expression.name in {"COLUMNS", "INDEX"}: -440 target = f" FROM{target}" -441 elif expression.name == "GRANTS": -442 target = f" FOR{target}" -443 -444 db = self._prefixed_sql("FROM", expression, "db") -445 -446 like = self._prefixed_sql("LIKE", expression, "like") -447 where = self.sql(expression, "where") -448 -449 types = self.expressions(expression, key="types") -450 types = f" {types}" if types else types -451 query = self._prefixed_sql("FOR QUERY", expression, "query") -452 -453 if expression.name == "PROFILE": -454 offset = self._prefixed_sql("OFFSET", expression, "offset") -455 limit = self._prefixed_sql("LIMIT", expression, "limit") -456 else: -457 offset = "" -458 limit = self._oldstyle_limit_sql(expression) -459 -460 log = self._prefixed_sql("IN", expression, "log") -461 position = self._prefixed_sql("FROM", expression, "position") -462 -463 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") -464 -465 if expression.name == "ENGINE": -466 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" -467 else: -468 mutex_or_status = "" -469 -470 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" -471 -472 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: -473 sql = self.sql(expression, arg) -474 if not sql: -475 return "" -476 return f" {prefix} {sql}" -477 -478 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: -479 limit = self.sql(expression, "limit") -480 offset = self.sql(expression, "offset") -481 if limit: -482 limit_offset = f"{offset}, {limit}" if offset else limit -483 return f" LIMIT {limit_offset}" -484 return "" +407 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +408 exp.StrPosition: strposition_to_locate_sql, +409 exp.StrToDate: _str_to_date_sql, +410 exp.StrToTime: _str_to_date_sql, +411 exp.TableSample: no_tablesample_sql, +412 exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), +413 exp.TimeToStr: lambda self, e: self.func("DATE_FORMAT", e.this, self.format_time(e)), +414 exp.Trim: _trim_sql, +415 exp.TryCast: no_trycast_sql, +416 exp.WeekOfYear: rename_func("WEEKOFYEAR"), +417 } +418 +419 TYPE_MAPPING = generator.Generator.TYPE_MAPPING.copy() +420 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMTEXT) +421 TYPE_MAPPING.pop(exp.DataType.Type.LONGTEXT) +422 TYPE_MAPPING.pop(exp.DataType.Type.MEDIUMBLOB) +423 TYPE_MAPPING.pop(exp.DataType.Type.LONGBLOB) +424 +425 PROPERTIES_LOCATION = { +426 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +427 exp.TransientProperty: exp.Properties.Location.UNSUPPORTED, +428 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +429 } +430 +431 LIMIT_FETCH = "LIMIT" +432 +433 def show_sql(self, expression: exp.Show) -> str: +434 this = f" {expression.name}" +435 full = " FULL" if expression.args.get("full") else "" +436 global_ = " GLOBAL" if expression.args.get("global") else "" +437 +438 target = self.sql(expression, "target") +439 target = f" {target}" if target else "" +440 if expression.name in {"COLUMNS", "INDEX"}: +441 target = f" FROM{target}" +442 elif expression.name == "GRANTS": +443 target = f" FOR{target}" +444 +445 db = self._prefixed_sql("FROM", expression, "db") +446 +447 like = self._prefixed_sql("LIKE", expression, "like") +448 where = self.sql(expression, "where") +449 +450 types = self.expressions(expression, key="types") +451 types = f" {types}" if types else types +452 query = self._prefixed_sql("FOR QUERY", expression, "query") +453 +454 if expression.name == "PROFILE": +455 offset = self._prefixed_sql("OFFSET", expression, "offset") +456 limit = self._prefixed_sql("LIMIT", expression, "limit") +457 else: +458 offset = "" +459 limit = self._oldstyle_limit_sql(expression) +460 +461 log = self._prefixed_sql("IN", expression, "log") +462 position = self._prefixed_sql("FROM", expression, "position") +463 +464 channel = self._prefixed_sql("FOR CHANNEL", expression, "channel") +465 +466 if expression.name == "ENGINE": +467 mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS" +468 else: +469 mutex_or_status = "" +470 +471 return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}" +472 +473 def _prefixed_sql(self, prefix: str, expression: exp.Expression, arg: str) -> str: +474 sql = self.sql(expression, arg) +475 if not sql: +476 return "" +477 return f" {prefix} {sql}" +478 +479 def _oldstyle_limit_sql(self, expression: exp.Show) -> str: +480 limit = self.sql(expression, "limit") +481 offset = self.sql(expression, "offset") +482 if limit: +483 limit_offset = f"{offset}, {limit}" if offset else limit +484 return f" LIMIT {limit_offset}" +485 return "" @@ -1514,45 +1517,45 @@ Default: True -
    432        def show_sql(self, expression: exp.Show) -> str:
    -433            this = f" {expression.name}"
    -434            full = " FULL" if expression.args.get("full") else ""
    -435            global_ = " GLOBAL" if expression.args.get("global") else ""
    -436
    -437            target = self.sql(expression, "target")
    -438            target = f" {target}" if target else ""
    -439            if expression.name in {"COLUMNS", "INDEX"}:
    -440                target = f" FROM{target}"
    -441            elif expression.name == "GRANTS":
    -442                target = f" FOR{target}"
    -443
    -444            db = self._prefixed_sql("FROM", expression, "db")
    -445
    -446            like = self._prefixed_sql("LIKE", expression, "like")
    -447            where = self.sql(expression, "where")
    -448
    -449            types = self.expressions(expression, key="types")
    -450            types = f" {types}" if types else types
    -451            query = self._prefixed_sql("FOR QUERY", expression, "query")
    -452
    -453            if expression.name == "PROFILE":
    -454                offset = self._prefixed_sql("OFFSET", expression, "offset")
    -455                limit = self._prefixed_sql("LIMIT", expression, "limit")
    -456            else:
    -457                offset = ""
    -458                limit = self._oldstyle_limit_sql(expression)
    -459
    -460            log = self._prefixed_sql("IN", expression, "log")
    -461            position = self._prefixed_sql("FROM", expression, "position")
    -462
    -463            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    -464
    -465            if expression.name == "ENGINE":
    -466                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    -467            else:
    -468                mutex_or_status = ""
    -469
    -470            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
    +            
    433        def show_sql(self, expression: exp.Show) -> str:
    +434            this = f" {expression.name}"
    +435            full = " FULL" if expression.args.get("full") else ""
    +436            global_ = " GLOBAL" if expression.args.get("global") else ""
    +437
    +438            target = self.sql(expression, "target")
    +439            target = f" {target}" if target else ""
    +440            if expression.name in {"COLUMNS", "INDEX"}:
    +441                target = f" FROM{target}"
    +442            elif expression.name == "GRANTS":
    +443                target = f" FOR{target}"
    +444
    +445            db = self._prefixed_sql("FROM", expression, "db")
    +446
    +447            like = self._prefixed_sql("LIKE", expression, "like")
    +448            where = self.sql(expression, "where")
    +449
    +450            types = self.expressions(expression, key="types")
    +451            types = f" {types}" if types else types
    +452            query = self._prefixed_sql("FOR QUERY", expression, "query")
    +453
    +454            if expression.name == "PROFILE":
    +455                offset = self._prefixed_sql("OFFSET", expression, "offset")
    +456                limit = self._prefixed_sql("LIMIT", expression, "limit")
    +457            else:
    +458                offset = ""
    +459                limit = self._oldstyle_limit_sql(expression)
    +460
    +461            log = self._prefixed_sql("IN", expression, "log")
    +462            position = self._prefixed_sql("FROM", expression, "position")
    +463
    +464            channel = self._prefixed_sql("FOR CHANNEL", expression, "channel")
    +465
    +466            if expression.name == "ENGINE":
    +467                mutex_or_status = " MUTEX" if expression.args.get("mutex") else " STATUS"
    +468            else:
    +469                mutex_or_status = ""
    +470
    +471            return f"SHOW{full}{global_}{this}{target}{types}{db}{query}{log}{position}{channel}{mutex_or_status}{like}{where}{offset}{limit}"
     
    @@ -1683,7 +1686,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1692,6 +1695,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/oracle.html b/docs/sqlglot/dialects/oracle.html index a6534d3..df16a26 100644 --- a/docs/sqlglot/dialects/oracle.html +++ b/docs/sqlglot/dialects/oracle.html @@ -122,146 +122,157 @@
    34 35 36class Oracle(Dialect): - 37 # https://docs.oracle.com/database/121/SQLRF/sql_elements004.htm#SQLRF00212 - 38 # https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes - 39 time_mapping = { - 40 "AM": "%p", # Meridian indicator with or without periods - 41 "A.M.": "%p", # Meridian indicator with or without periods - 42 "PM": "%p", # Meridian indicator with or without periods - 43 "P.M.": "%p", # Meridian indicator with or without periods - 44 "D": "%u", # Day of week (1-7) - 45 "DAY": "%A", # name of day - 46 "DD": "%d", # day of month (1-31) - 47 "DDD": "%j", # day of year (1-366) - 48 "DY": "%a", # abbreviated name of day - 49 "HH": "%I", # Hour of day (1-12) - 50 "HH12": "%I", # alias for HH - 51 "HH24": "%H", # Hour of day (0-23) - 52 "IW": "%V", # Calendar week of year (1-52 or 1-53), as defined by the ISO 8601 standard - 53 "MI": "%M", # Minute (0-59) - 54 "MM": "%m", # Month (01-12; January = 01) - 55 "MON": "%b", # Abbreviated name of month - 56 "MONTH": "%B", # Name of month - 57 "SS": "%S", # Second (0-59) - 58 "WW": "%W", # Week of year (1-53) - 59 "YY": "%y", # 15 - 60 "YYYY": "%Y", # 2015 - 61 } - 62 - 63 class Parser(parser.Parser): - 64 FUNCTIONS = { - 65 **parser.Parser.FUNCTIONS, # type: ignore - 66 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), - 67 } - 68 - 69 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 70 **parser.Parser.FUNCTION_PARSERS, - 71 "XMLTABLE": _parse_xml_table, - 72 } - 73 - 74 TYPE_LITERAL_PARSERS = { - 75 exp.DataType.Type.DATE: lambda self, this, _: self.expression( - 76 exp.DateStrToDate, this=this - 77 ) - 78 } - 79 - 80 def _parse_column(self) -> t.Optional[exp.Expression]: - 81 column = super()._parse_column() - 82 if column: - 83 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) - 84 return column - 85 - 86 def _parse_hint(self) -> t.Optional[exp.Expression]: - 87 if self._match(TokenType.HINT): - 88 start = self._curr - 89 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): - 90 self._advance() - 91 - 92 if not self._curr: - 93 self.raise_error("Expected */ after HINT") - 94 - 95 end = self._tokens[self._index - 3] - 96 return exp.Hint(expressions=[self._find_sql(start, end)]) - 97 - 98 return None - 99 -100 class Generator(generator.Generator): -101 LOCKING_READS_SUPPORTED = True -102 JOIN_HINTS = False -103 TABLE_HINTS = False -104 -105 TYPE_MAPPING = { -106 **generator.Generator.TYPE_MAPPING, # type: ignore -107 exp.DataType.Type.TINYINT: "NUMBER", -108 exp.DataType.Type.SMALLINT: "NUMBER", -109 exp.DataType.Type.INT: "NUMBER", -110 exp.DataType.Type.BIGINT: "NUMBER", -111 exp.DataType.Type.DECIMAL: "NUMBER", -112 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", -113 exp.DataType.Type.VARCHAR: "VARCHAR2", -114 exp.DataType.Type.NVARCHAR: "NVARCHAR2", -115 exp.DataType.Type.TEXT: "CLOB", -116 exp.DataType.Type.BINARY: "BLOB", -117 exp.DataType.Type.VARBINARY: "BLOB", -118 } -119 -120 TRANSFORMS = { -121 **generator.Generator.TRANSFORMS, # type: ignore -122 **transforms.UNALIAS_GROUP, # type: ignore -123 exp.DateStrToDate: lambda self, e: self.func( -124 "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD") -125 ), -126 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", -127 exp.ILike: no_ilike_sql, -128 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -129 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), -130 exp.Substring: rename_func("SUBSTR"), -131 exp.Table: lambda self, e: self.table_sql(e, sep=" "), -132 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", -133 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -134 exp.Trim: trim_sql, -135 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", -136 exp.IfNull: rename_func("NVL"), -137 } -138 -139 PROPERTIES_LOCATION = { -140 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -141 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -142 } -143 -144 LIMIT_FETCH = "FETCH" -145 -146 def offset_sql(self, expression: exp.Offset) -> str: -147 return f"{super().offset_sql(expression)} ROWS" -148 -149 def column_sql(self, expression: exp.Column) -> str: -150 column = super().column_sql(expression) -151 return f"{column} (+)" if expression.args.get("join_mark") else column -152 -153 def xmltable_sql(self, expression: exp.XMLTable) -> str: -154 this = self.sql(expression, "this") -155 passing = self.expressions(expression, key="passing") -156 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" -157 columns = self.expressions(expression, key="columns") -158 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" -159 by_ref = ( -160 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" -161 ) -162 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" -163 -164 class Tokenizer(tokens.Tokenizer): -165 KEYWORDS = { -166 **tokens.Tokenizer.KEYWORDS, -167 "(+)": TokenType.JOIN_MARKER, -168 "COLUMNS": TokenType.COLUMN, -169 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, -170 "MINUS": TokenType.EXCEPT, -171 "NVARCHAR2": TokenType.NVARCHAR, -172 "RETURNING": TokenType.RETURNING, -173 "START": TokenType.BEGIN, -174 "TOP": TokenType.TOP, -175 "VARCHAR2": TokenType.VARCHAR, -176 } + 37 alias_post_tablesample = True + 38 + 39 # https://docs.oracle.com/database/121/SQLRF/sql_elements004.htm#SQLRF00212 + 40 # https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes + 41 time_mapping = { + 42 "AM": "%p", # Meridian indicator with or without periods + 43 "A.M.": "%p", # Meridian indicator with or without periods + 44 "PM": "%p", # Meridian indicator with or without periods + 45 "P.M.": "%p", # Meridian indicator with or without periods + 46 "D": "%u", # Day of week (1-7) + 47 "DAY": "%A", # name of day + 48 "DD": "%d", # day of month (1-31) + 49 "DDD": "%j", # day of year (1-366) + 50 "DY": "%a", # abbreviated name of day + 51 "HH": "%I", # Hour of day (1-12) + 52 "HH12": "%I", # alias for HH + 53 "HH24": "%H", # Hour of day (0-23) + 54 "IW": "%V", # Calendar week of year (1-52 or 1-53), as defined by the ISO 8601 standard + 55 "MI": "%M", # Minute (0-59) + 56 "MM": "%m", # Month (01-12; January = 01) + 57 "MON": "%b", # Abbreviated name of month + 58 "MONTH": "%B", # Name of month + 59 "SS": "%S", # Second (0-59) + 60 "WW": "%W", # Week of year (1-53) + 61 "YY": "%y", # 15 + 62 "YYYY": "%Y", # 2015 + 63 } + 64 + 65 class Parser(parser.Parser): + 66 WINDOW_BEFORE_PAREN_TOKENS = {TokenType.OVER, TokenType.KEEP} + 67 + 68 FUNCTIONS = { + 69 **parser.Parser.FUNCTIONS, # type: ignore + 70 "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)), + 71 } + 72 + 73 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 74 **parser.Parser.FUNCTION_PARSERS, + 75 "XMLTABLE": _parse_xml_table, + 76 } + 77 + 78 TYPE_LITERAL_PARSERS = { + 79 exp.DataType.Type.DATE: lambda self, this, _: self.expression( + 80 exp.DateStrToDate, this=this + 81 ) + 82 } + 83 + 84 def _parse_column(self) -> t.Optional[exp.Expression]: + 85 column = super()._parse_column() + 86 if column: + 87 column.set("join_mark", self._match(TokenType.JOIN_MARKER)) + 88 return column + 89 + 90 def _parse_hint(self) -> t.Optional[exp.Expression]: + 91 if self._match(TokenType.HINT): + 92 start = self._curr + 93 while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH): + 94 self._advance() + 95 + 96 if not self._curr: + 97 self.raise_error("Expected */ after HINT") + 98 + 99 end = self._tokens[self._index - 3] +100 return exp.Hint(expressions=[self._find_sql(start, end)]) +101 +102 return None +103 +104 class Generator(generator.Generator): +105 LOCKING_READS_SUPPORTED = True +106 JOIN_HINTS = False +107 TABLE_HINTS = False +108 +109 TYPE_MAPPING = { +110 **generator.Generator.TYPE_MAPPING, # type: ignore +111 exp.DataType.Type.TINYINT: "NUMBER", +112 exp.DataType.Type.SMALLINT: "NUMBER", +113 exp.DataType.Type.INT: "NUMBER", +114 exp.DataType.Type.BIGINT: "NUMBER", +115 exp.DataType.Type.DECIMAL: "NUMBER", +116 exp.DataType.Type.DOUBLE: "DOUBLE PRECISION", +117 exp.DataType.Type.VARCHAR: "VARCHAR2", +118 exp.DataType.Type.NVARCHAR: "NVARCHAR2", +119 exp.DataType.Type.TEXT: "CLOB", +120 exp.DataType.Type.BINARY: "BLOB", +121 exp.DataType.Type.VARBINARY: "BLOB", +122 } +123 +124 TRANSFORMS = { +125 **generator.Generator.TRANSFORMS, # type: ignore +126 exp.DateStrToDate: lambda self, e: self.func( +127 "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD") +128 ), +129 exp.Group: transforms.preprocess([transforms.unalias_group]), +130 exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", +131 exp.ILike: no_ilike_sql, +132 exp.IfNull: rename_func("NVL"), +133 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +134 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +135 exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), +136 exp.Substring: rename_func("SUBSTR"), +137 exp.Table: lambda self, e: self.table_sql(e, sep=" "), +138 exp.TableSample: lambda self, e: self.tablesample_sql(e, sep=" "), +139 exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", +140 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +141 exp.Trim: trim_sql, +142 exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", +143 } +144 +145 PROPERTIES_LOCATION = { +146 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +147 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +148 } +149 +150 LIMIT_FETCH = "FETCH" +151 +152 def offset_sql(self, expression: exp.Offset) -> str: +153 return f"{super().offset_sql(expression)} ROWS" +154 +155 def column_sql(self, expression: exp.Column) -> str: +156 column = super().column_sql(expression) +157 return f"{column} (+)" if expression.args.get("join_mark") else column +158 +159 def xmltable_sql(self, expression: exp.XMLTable) -> str: +160 this = self.sql(expression, "this") +161 passing = self.expressions(expression, key="passing") +162 passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else "" +163 columns = self.expressions(expression, key="columns") +164 columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else "" +165 by_ref = ( +166 f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else "" +167 ) +168 return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" +169 +170 class Tokenizer(tokens.Tokenizer): +171 VAR_SINGLE_TOKENS = {"@"} +172 +173 KEYWORDS = { +174 **tokens.Tokenizer.KEYWORDS, +175 "(+)": TokenType.JOIN_MARKER, +176 "BINARY_DOUBLE": TokenType.DOUBLE, +177 "BINARY_FLOAT": TokenType.FLOAT, +178 "COLUMNS": TokenType.COLUMN, +179 "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, +180 "MINUS": TokenType.EXCEPT, +181 "NVARCHAR2": TokenType.NVARCHAR, +182 "RETURNING": TokenType.RETURNING, +183 "SAMPLE": TokenType.TABLE_SAMPLE, +184 "START": TokenType.BEGIN, +185 "TOP": TokenType.TOP, +186 "VARCHAR2": TokenType.VARCHAR, +187 }
    @@ -278,146 +289,157 @@
     37class Oracle(Dialect):
    - 38    # https://docs.oracle.com/database/121/SQLRF/sql_elements004.htm#SQLRF00212
    - 39    # https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes
    - 40    time_mapping = {
    - 41        "AM": "%p",  # Meridian indicator with or without periods
    - 42        "A.M.": "%p",  # Meridian indicator with or without periods
    - 43        "PM": "%p",  # Meridian indicator with or without periods
    - 44        "P.M.": "%p",  # Meridian indicator with or without periods
    - 45        "D": "%u",  # Day of week (1-7)
    - 46        "DAY": "%A",  # name of day
    - 47        "DD": "%d",  # day of month (1-31)
    - 48        "DDD": "%j",  # day of year (1-366)
    - 49        "DY": "%a",  # abbreviated name of day
    - 50        "HH": "%I",  # Hour of day (1-12)
    - 51        "HH12": "%I",  # alias for HH
    - 52        "HH24": "%H",  # Hour of day (0-23)
    - 53        "IW": "%V",  # Calendar week of year (1-52 or 1-53), as defined by the ISO 8601 standard
    - 54        "MI": "%M",  # Minute (0-59)
    - 55        "MM": "%m",  # Month (01-12; January = 01)
    - 56        "MON": "%b",  # Abbreviated name of month
    - 57        "MONTH": "%B",  # Name of month
    - 58        "SS": "%S",  # Second (0-59)
    - 59        "WW": "%W",  # Week of year (1-53)
    - 60        "YY": "%y",  # 15
    - 61        "YYYY": "%Y",  # 2015
    - 62    }
    - 63
    - 64    class Parser(parser.Parser):
    - 65        FUNCTIONS = {
    - 66            **parser.Parser.FUNCTIONS,  # type: ignore
    - 67            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
    - 68        }
    - 69
    - 70        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    - 71            **parser.Parser.FUNCTION_PARSERS,
    - 72            "XMLTABLE": _parse_xml_table,
    - 73        }
    - 74
    - 75        TYPE_LITERAL_PARSERS = {
    - 76            exp.DataType.Type.DATE: lambda self, this, _: self.expression(
    - 77                exp.DateStrToDate, this=this
    - 78            )
    - 79        }
    - 80
    - 81        def _parse_column(self) -> t.Optional[exp.Expression]:
    - 82            column = super()._parse_column()
    - 83            if column:
    - 84                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
    - 85            return column
    - 86
    - 87        def _parse_hint(self) -> t.Optional[exp.Expression]:
    - 88            if self._match(TokenType.HINT):
    - 89                start = self._curr
    - 90                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
    - 91                    self._advance()
    - 92
    - 93                if not self._curr:
    - 94                    self.raise_error("Expected */ after HINT")
    - 95
    - 96                end = self._tokens[self._index - 3]
    - 97                return exp.Hint(expressions=[self._find_sql(start, end)])
    - 98
    - 99            return None
    -100
    -101    class Generator(generator.Generator):
    -102        LOCKING_READS_SUPPORTED = True
    -103        JOIN_HINTS = False
    -104        TABLE_HINTS = False
    -105
    -106        TYPE_MAPPING = {
    -107            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -108            exp.DataType.Type.TINYINT: "NUMBER",
    -109            exp.DataType.Type.SMALLINT: "NUMBER",
    -110            exp.DataType.Type.INT: "NUMBER",
    -111            exp.DataType.Type.BIGINT: "NUMBER",
    -112            exp.DataType.Type.DECIMAL: "NUMBER",
    -113            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -114            exp.DataType.Type.VARCHAR: "VARCHAR2",
    -115            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    -116            exp.DataType.Type.TEXT: "CLOB",
    -117            exp.DataType.Type.BINARY: "BLOB",
    -118            exp.DataType.Type.VARBINARY: "BLOB",
    -119        }
    -120
    -121        TRANSFORMS = {
    -122            **generator.Generator.TRANSFORMS,  # type: ignore
    -123            **transforms.UNALIAS_GROUP,  # type: ignore
    -124            exp.DateStrToDate: lambda self, e: self.func(
    -125                "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD")
    -126            ),
    -127            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    -128            exp.ILike: no_ilike_sql,
    -129            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -130            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    -131            exp.Substring: rename_func("SUBSTR"),
    -132            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    -133            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -134            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -135            exp.Trim: trim_sql,
    -136            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    -137            exp.IfNull: rename_func("NVL"),
    -138        }
    -139
    -140        PROPERTIES_LOCATION = {
    -141            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -142            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -143        }
    -144
    -145        LIMIT_FETCH = "FETCH"
    -146
    -147        def offset_sql(self, expression: exp.Offset) -> str:
    -148            return f"{super().offset_sql(expression)} ROWS"
    -149
    -150        def column_sql(self, expression: exp.Column) -> str:
    -151            column = super().column_sql(expression)
    -152            return f"{column} (+)" if expression.args.get("join_mark") else column
    -153
    -154        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    -155            this = self.sql(expression, "this")
    -156            passing = self.expressions(expression, key="passing")
    -157            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    -158            columns = self.expressions(expression, key="columns")
    -159            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    -160            by_ref = (
    -161                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    -162            )
    -163            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    -164
    -165    class Tokenizer(tokens.Tokenizer):
    -166        KEYWORDS = {
    -167            **tokens.Tokenizer.KEYWORDS,
    -168            "(+)": TokenType.JOIN_MARKER,
    -169            "COLUMNS": TokenType.COLUMN,
    -170            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -171            "MINUS": TokenType.EXCEPT,
    -172            "NVARCHAR2": TokenType.NVARCHAR,
    -173            "RETURNING": TokenType.RETURNING,
    -174            "START": TokenType.BEGIN,
    -175            "TOP": TokenType.TOP,
    -176            "VARCHAR2": TokenType.VARCHAR,
    -177        }
    + 38    alias_post_tablesample = True
    + 39
    + 40    # https://docs.oracle.com/database/121/SQLRF/sql_elements004.htm#SQLRF00212
    + 41    # https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes
    + 42    time_mapping = {
    + 43        "AM": "%p",  # Meridian indicator with or without periods
    + 44        "A.M.": "%p",  # Meridian indicator with or without periods
    + 45        "PM": "%p",  # Meridian indicator with or without periods
    + 46        "P.M.": "%p",  # Meridian indicator with or without periods
    + 47        "D": "%u",  # Day of week (1-7)
    + 48        "DAY": "%A",  # name of day
    + 49        "DD": "%d",  # day of month (1-31)
    + 50        "DDD": "%j",  # day of year (1-366)
    + 51        "DY": "%a",  # abbreviated name of day
    + 52        "HH": "%I",  # Hour of day (1-12)
    + 53        "HH12": "%I",  # alias for HH
    + 54        "HH24": "%H",  # Hour of day (0-23)
    + 55        "IW": "%V",  # Calendar week of year (1-52 or 1-53), as defined by the ISO 8601 standard
    + 56        "MI": "%M",  # Minute (0-59)
    + 57        "MM": "%m",  # Month (01-12; January = 01)
    + 58        "MON": "%b",  # Abbreviated name of month
    + 59        "MONTH": "%B",  # Name of month
    + 60        "SS": "%S",  # Second (0-59)
    + 61        "WW": "%W",  # Week of year (1-53)
    + 62        "YY": "%y",  # 15
    + 63        "YYYY": "%Y",  # 2015
    + 64    }
    + 65
    + 66    class Parser(parser.Parser):
    + 67        WINDOW_BEFORE_PAREN_TOKENS = {TokenType.OVER, TokenType.KEEP}
    + 68
    + 69        FUNCTIONS = {
    + 70            **parser.Parser.FUNCTIONS,  # type: ignore
    + 71            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
    + 72        }
    + 73
    + 74        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    + 75            **parser.Parser.FUNCTION_PARSERS,
    + 76            "XMLTABLE": _parse_xml_table,
    + 77        }
    + 78
    + 79        TYPE_LITERAL_PARSERS = {
    + 80            exp.DataType.Type.DATE: lambda self, this, _: self.expression(
    + 81                exp.DateStrToDate, this=this
    + 82            )
    + 83        }
    + 84
    + 85        def _parse_column(self) -> t.Optional[exp.Expression]:
    + 86            column = super()._parse_column()
    + 87            if column:
    + 88                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
    + 89            return column
    + 90
    + 91        def _parse_hint(self) -> t.Optional[exp.Expression]:
    + 92            if self._match(TokenType.HINT):
    + 93                start = self._curr
    + 94                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
    + 95                    self._advance()
    + 96
    + 97                if not self._curr:
    + 98                    self.raise_error("Expected */ after HINT")
    + 99
    +100                end = self._tokens[self._index - 3]
    +101                return exp.Hint(expressions=[self._find_sql(start, end)])
    +102
    +103            return None
    +104
    +105    class Generator(generator.Generator):
    +106        LOCKING_READS_SUPPORTED = True
    +107        JOIN_HINTS = False
    +108        TABLE_HINTS = False
    +109
    +110        TYPE_MAPPING = {
    +111            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +112            exp.DataType.Type.TINYINT: "NUMBER",
    +113            exp.DataType.Type.SMALLINT: "NUMBER",
    +114            exp.DataType.Type.INT: "NUMBER",
    +115            exp.DataType.Type.BIGINT: "NUMBER",
    +116            exp.DataType.Type.DECIMAL: "NUMBER",
    +117            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +118            exp.DataType.Type.VARCHAR: "VARCHAR2",
    +119            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    +120            exp.DataType.Type.TEXT: "CLOB",
    +121            exp.DataType.Type.BINARY: "BLOB",
    +122            exp.DataType.Type.VARBINARY: "BLOB",
    +123        }
    +124
    +125        TRANSFORMS = {
    +126            **generator.Generator.TRANSFORMS,  # type: ignore
    +127            exp.DateStrToDate: lambda self, e: self.func(
    +128                "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD")
    +129            ),
    +130            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +131            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    +132            exp.ILike: no_ilike_sql,
    +133            exp.IfNull: rename_func("NVL"),
    +134            exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]),
    +135            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +136            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    +137            exp.Substring: rename_func("SUBSTR"),
    +138            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    +139            exp.TableSample: lambda self, e: self.tablesample_sql(e, sep=" "),
    +140            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +141            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +142            exp.Trim: trim_sql,
    +143            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    +144        }
    +145
    +146        PROPERTIES_LOCATION = {
    +147            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +148            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +149        }
    +150
    +151        LIMIT_FETCH = "FETCH"
    +152
    +153        def offset_sql(self, expression: exp.Offset) -> str:
    +154            return f"{super().offset_sql(expression)} ROWS"
    +155
    +156        def column_sql(self, expression: exp.Column) -> str:
    +157            column = super().column_sql(expression)
    +158            return f"{column} (+)" if expression.args.get("join_mark") else column
    +159
    +160        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    +161            this = self.sql(expression, "this")
    +162            passing = self.expressions(expression, key="passing")
    +163            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    +164            columns = self.expressions(expression, key="columns")
    +165            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    +166            by_ref = (
    +167                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    +168            )
    +169            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    +170
    +171    class Tokenizer(tokens.Tokenizer):
    +172        VAR_SINGLE_TOKENS = {"@"}
    +173
    +174        KEYWORDS = {
    +175            **tokens.Tokenizer.KEYWORDS,
    +176            "(+)": TokenType.JOIN_MARKER,
    +177            "BINARY_DOUBLE": TokenType.DOUBLE,
    +178            "BINARY_FLOAT": TokenType.FLOAT,
    +179            "COLUMNS": TokenType.COLUMN,
    +180            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +181            "MINUS": TokenType.EXCEPT,
    +182            "NVARCHAR2": TokenType.NVARCHAR,
    +183            "RETURNING": TokenType.RETURNING,
    +184            "SAMPLE": TokenType.TABLE_SAMPLE,
    +185            "START": TokenType.BEGIN,
    +186            "TOP": TokenType.TOP,
    +187            "VARCHAR2": TokenType.VARCHAR,
    +188        }
     
    @@ -452,42 +474,44 @@ -
    64    class Parser(parser.Parser):
    -65        FUNCTIONS = {
    -66            **parser.Parser.FUNCTIONS,  # type: ignore
    -67            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
    -68        }
    -69
    -70        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    -71            **parser.Parser.FUNCTION_PARSERS,
    -72            "XMLTABLE": _parse_xml_table,
    -73        }
    -74
    -75        TYPE_LITERAL_PARSERS = {
    -76            exp.DataType.Type.DATE: lambda self, this, _: self.expression(
    -77                exp.DateStrToDate, this=this
    -78            )
    -79        }
    -80
    -81        def _parse_column(self) -> t.Optional[exp.Expression]:
    -82            column = super()._parse_column()
    -83            if column:
    -84                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
    -85            return column
    -86
    -87        def _parse_hint(self) -> t.Optional[exp.Expression]:
    -88            if self._match(TokenType.HINT):
    -89                start = self._curr
    -90                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
    -91                    self._advance()
    -92
    -93                if not self._curr:
    -94                    self.raise_error("Expected */ after HINT")
    -95
    -96                end = self._tokens[self._index - 3]
    -97                return exp.Hint(expressions=[self._find_sql(start, end)])
    -98
    -99            return None
    +            
     66    class Parser(parser.Parser):
    + 67        WINDOW_BEFORE_PAREN_TOKENS = {TokenType.OVER, TokenType.KEEP}
    + 68
    + 69        FUNCTIONS = {
    + 70            **parser.Parser.FUNCTIONS,  # type: ignore
    + 71            "SQUARE": lambda args: exp.Pow(this=seq_get(args, 0), expression=exp.Literal.number(2)),
    + 72        }
    + 73
    + 74        FUNCTION_PARSERS: t.Dict[str, t.Callable] = {
    + 75            **parser.Parser.FUNCTION_PARSERS,
    + 76            "XMLTABLE": _parse_xml_table,
    + 77        }
    + 78
    + 79        TYPE_LITERAL_PARSERS = {
    + 80            exp.DataType.Type.DATE: lambda self, this, _: self.expression(
    + 81                exp.DateStrToDate, this=this
    + 82            )
    + 83        }
    + 84
    + 85        def _parse_column(self) -> t.Optional[exp.Expression]:
    + 86            column = super()._parse_column()
    + 87            if column:
    + 88                column.set("join_mark", self._match(TokenType.JOIN_MARKER))
    + 89            return column
    + 90
    + 91        def _parse_hint(self) -> t.Optional[exp.Expression]:
    + 92            if self._match(TokenType.HINT):
    + 93                start = self._curr
    + 94                while self._curr and not self._match_pair(TokenType.STAR, TokenType.SLASH):
    + 95                    self._advance()
    + 96
    + 97                if not self._curr:
    + 98                    self.raise_error("Expected */ after HINT")
    + 99
    +100                end = self._tokens[self._index - 3]
    +101                return exp.Hint(expressions=[self._find_sql(start, end)])
    +102
    +103            return None
     
    @@ -544,69 +568,71 @@ Default: "nulls_are_small"
    -
    101    class Generator(generator.Generator):
    -102        LOCKING_READS_SUPPORTED = True
    -103        JOIN_HINTS = False
    -104        TABLE_HINTS = False
    -105
    -106        TYPE_MAPPING = {
    -107            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -108            exp.DataType.Type.TINYINT: "NUMBER",
    -109            exp.DataType.Type.SMALLINT: "NUMBER",
    -110            exp.DataType.Type.INT: "NUMBER",
    -111            exp.DataType.Type.BIGINT: "NUMBER",
    -112            exp.DataType.Type.DECIMAL: "NUMBER",
    -113            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -114            exp.DataType.Type.VARCHAR: "VARCHAR2",
    -115            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    -116            exp.DataType.Type.TEXT: "CLOB",
    -117            exp.DataType.Type.BINARY: "BLOB",
    -118            exp.DataType.Type.VARBINARY: "BLOB",
    -119        }
    -120
    -121        TRANSFORMS = {
    -122            **generator.Generator.TRANSFORMS,  # type: ignore
    -123            **transforms.UNALIAS_GROUP,  # type: ignore
    -124            exp.DateStrToDate: lambda self, e: self.func(
    -125                "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD")
    -126            ),
    -127            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    -128            exp.ILike: no_ilike_sql,
    -129            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -130            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    -131            exp.Substring: rename_func("SUBSTR"),
    -132            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    -133            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -134            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -135            exp.Trim: trim_sql,
    -136            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    -137            exp.IfNull: rename_func("NVL"),
    -138        }
    -139
    -140        PROPERTIES_LOCATION = {
    -141            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -142            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -143        }
    -144
    -145        LIMIT_FETCH = "FETCH"
    -146
    -147        def offset_sql(self, expression: exp.Offset) -> str:
    -148            return f"{super().offset_sql(expression)} ROWS"
    -149
    -150        def column_sql(self, expression: exp.Column) -> str:
    -151            column = super().column_sql(expression)
    -152            return f"{column} (+)" if expression.args.get("join_mark") else column
    -153
    -154        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    -155            this = self.sql(expression, "this")
    -156            passing = self.expressions(expression, key="passing")
    -157            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    -158            columns = self.expressions(expression, key="columns")
    -159            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    -160            by_ref = (
    -161                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    -162            )
    -163            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    +            
    105    class Generator(generator.Generator):
    +106        LOCKING_READS_SUPPORTED = True
    +107        JOIN_HINTS = False
    +108        TABLE_HINTS = False
    +109
    +110        TYPE_MAPPING = {
    +111            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +112            exp.DataType.Type.TINYINT: "NUMBER",
    +113            exp.DataType.Type.SMALLINT: "NUMBER",
    +114            exp.DataType.Type.INT: "NUMBER",
    +115            exp.DataType.Type.BIGINT: "NUMBER",
    +116            exp.DataType.Type.DECIMAL: "NUMBER",
    +117            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +118            exp.DataType.Type.VARCHAR: "VARCHAR2",
    +119            exp.DataType.Type.NVARCHAR: "NVARCHAR2",
    +120            exp.DataType.Type.TEXT: "CLOB",
    +121            exp.DataType.Type.BINARY: "BLOB",
    +122            exp.DataType.Type.VARBINARY: "BLOB",
    +123        }
    +124
    +125        TRANSFORMS = {
    +126            **generator.Generator.TRANSFORMS,  # type: ignore
    +127            exp.DateStrToDate: lambda self, e: self.func(
    +128                "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD")
    +129            ),
    +130            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +131            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    +132            exp.ILike: no_ilike_sql,
    +133            exp.IfNull: rename_func("NVL"),
    +134            exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]),
    +135            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +136            exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "),
    +137            exp.Substring: rename_func("SUBSTR"),
    +138            exp.Table: lambda self, e: self.table_sql(e, sep=" "),
    +139            exp.TableSample: lambda self, e: self.tablesample_sql(e, sep=" "),
    +140            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +141            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +142            exp.Trim: trim_sql,
    +143            exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)",
    +144        }
    +145
    +146        PROPERTIES_LOCATION = {
    +147            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +148            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +149        }
    +150
    +151        LIMIT_FETCH = "FETCH"
    +152
    +153        def offset_sql(self, expression: exp.Offset) -> str:
    +154            return f"{super().offset_sql(expression)} ROWS"
    +155
    +156        def column_sql(self, expression: exp.Column) -> str:
    +157            column = super().column_sql(expression)
    +158            return f"{column} (+)" if expression.args.get("join_mark") else column
    +159
    +160        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    +161            this = self.sql(expression, "this")
    +162            passing = self.expressions(expression, key="passing")
    +163            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    +164            columns = self.expressions(expression, key="columns")
    +165            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    +166            by_ref = (
    +167                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    +168            )
    +169            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
     
    @@ -665,8 +691,8 @@ Default: True
    -
    147        def offset_sql(self, expression: exp.Offset) -> str:
    -148            return f"{super().offset_sql(expression)} ROWS"
    +            
    153        def offset_sql(self, expression: exp.Offset) -> str:
    +154            return f"{super().offset_sql(expression)} ROWS"
     
    @@ -684,9 +710,9 @@ Default: True
    -
    150        def column_sql(self, expression: exp.Column) -> str:
    -151            column = super().column_sql(expression)
    -152            return f"{column} (+)" if expression.args.get("join_mark") else column
    +            
    156        def column_sql(self, expression: exp.Column) -> str:
    +157            column = super().column_sql(expression)
    +158            return f"{column} (+)" if expression.args.get("join_mark") else column
     
    @@ -704,16 +730,16 @@ Default: True
    -
    154        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    -155            this = self.sql(expression, "this")
    -156            passing = self.expressions(expression, key="passing")
    -157            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    -158            columns = self.expressions(expression, key="columns")
    -159            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    -160            by_ref = (
    -161                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    -162            )
    -163            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
    +            
    160        def xmltable_sql(self, expression: exp.XMLTable) -> str:
    +161            this = self.sql(expression, "this")
    +162            passing = self.expressions(expression, key="passing")
    +163            passing = f"{self.sep()}PASSING{self.seg(passing)}" if passing else ""
    +164            columns = self.expressions(expression, key="columns")
    +165            columns = f"{self.sep()}COLUMNS{self.seg(columns)}" if columns else ""
    +166            by_ref = (
    +167                f"{self.sep()}RETURNING SEQUENCE BY REF" if expression.args.get("by_ref") else ""
    +168            )
    +169            return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}"
     
    @@ -842,7 +868,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -851,6 +877,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    @@ -962,19 +989,24 @@ Default: True
    -
    165    class Tokenizer(tokens.Tokenizer):
    -166        KEYWORDS = {
    -167            **tokens.Tokenizer.KEYWORDS,
    -168            "(+)": TokenType.JOIN_MARKER,
    -169            "COLUMNS": TokenType.COLUMN,
    -170            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    -171            "MINUS": TokenType.EXCEPT,
    -172            "NVARCHAR2": TokenType.NVARCHAR,
    -173            "RETURNING": TokenType.RETURNING,
    -174            "START": TokenType.BEGIN,
    -175            "TOP": TokenType.TOP,
    -176            "VARCHAR2": TokenType.VARCHAR,
    -177        }
    +            
    171    class Tokenizer(tokens.Tokenizer):
    +172        VAR_SINGLE_TOKENS = {"@"}
    +173
    +174        KEYWORDS = {
    +175            **tokens.Tokenizer.KEYWORDS,
    +176            "(+)": TokenType.JOIN_MARKER,
    +177            "BINARY_DOUBLE": TokenType.DOUBLE,
    +178            "BINARY_FLOAT": TokenType.FLOAT,
    +179            "COLUMNS": TokenType.COLUMN,
    +180            "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE,
    +181            "MINUS": TokenType.EXCEPT,
    +182            "NVARCHAR2": TokenType.NVARCHAR,
    +183            "RETURNING": TokenType.RETURNING,
    +184            "SAMPLE": TokenType.TABLE_SAMPLE,
    +185            "START": TokenType.BEGIN,
    +186            "TOP": TokenType.TOP,
    +187            "VARCHAR2": TokenType.VARCHAR,
    +188        }
     
    diff --git a/docs/sqlglot/dialects/postgres.html b/docs/sqlglot/dialects/postgres.html index 9eb542b..a322f4e 100644 --- a/docs/sqlglot/dialects/postgres.html +++ b/docs/sqlglot/dialects/postgres.html @@ -79,7 +79,7 @@
      1from __future__ import annotations
       2
    -  3from sqlglot import exp, generator, parser, tokens
    +  3from sqlglot import exp, generator, parser, tokens, transforms
       4from sqlglot.dialects.dialect import (
       5    Dialect,
       6    arrow_json_extract_scalar_sql,
    @@ -99,353 +99,352 @@
      20from sqlglot.helper import seq_get
      21from sqlglot.parser import binary_range_parser
      22from sqlglot.tokens import TokenType
    - 23from sqlglot.transforms import preprocess, remove_target_from_merge
    - 24
    - 25DATE_DIFF_FACTOR = {
    - 26    "MICROSECOND": " * 1000000",
    - 27    "MILLISECOND": " * 1000",
    - 28    "SECOND": "",
    - 29    "MINUTE": " / 60",
    - 30    "HOUR": " / 3600",
    - 31    "DAY": " / 86400",
    - 32}
    + 23
    + 24DATE_DIFF_FACTOR = {
    + 25    "MICROSECOND": " * 1000000",
    + 26    "MILLISECOND": " * 1000",
    + 27    "SECOND": "",
    + 28    "MINUTE": " / 60",
    + 29    "HOUR": " / 3600",
    + 30    "DAY": " / 86400",
    + 31}
    + 32
      33
    - 34
    - 35def _date_add_sql(kind):
    - 36    def func(self, expression):
    - 37        from sqlglot.optimizer.simplify import simplify
    - 38
    - 39        this = self.sql(expression, "this")
    - 40        unit = expression.args.get("unit")
    - 41        expression = simplify(expression.args["expression"])
    - 42
    - 43        if not isinstance(expression, exp.Literal):
    - 44            self.unsupported("Cannot add non literal")
    - 45
    - 46        expression = expression.copy()
    - 47        expression.args["is_string"] = True
    - 48        return f"{this} {kind} {self.sql(exp.Interval(this=expression, unit=unit))}"
    - 49
    - 50    return func
    + 34def _date_add_sql(kind):
    + 35    def func(self, expression):
    + 36        from sqlglot.optimizer.simplify import simplify
    + 37
    + 38        this = self.sql(expression, "this")
    + 39        unit = expression.args.get("unit")
    + 40        expression = simplify(expression.args["expression"])
    + 41
    + 42        if not isinstance(expression, exp.Literal):
    + 43            self.unsupported("Cannot add non literal")
    + 44
    + 45        expression = expression.copy()
    + 46        expression.args["is_string"] = True
    + 47        return f"{this} {kind} {self.sql(exp.Interval(this=expression, unit=unit))}"
    + 48
    + 49    return func
    + 50
      51
    - 52
    - 53def _date_diff_sql(self, expression):
    - 54    unit = expression.text("unit").upper()
    - 55    factor = DATE_DIFF_FACTOR.get(unit)
    - 56
    - 57    end = f"CAST({expression.this} AS TIMESTAMP)"
    - 58    start = f"CAST({expression.expression} AS TIMESTAMP)"
    - 59
    - 60    if factor is not None:
    - 61        return f"CAST(EXTRACT(epoch FROM {end} - {start}){factor} AS BIGINT)"
    - 62
    - 63    age = f"AGE({end}, {start})"
    - 64
    - 65    if unit == "WEEK":
    - 66        unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7"
    - 67    elif unit == "MONTH":
    - 68        unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})"
    - 69    elif unit == "QUARTER":
    - 70        unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3"
    - 71    elif unit == "YEAR":
    - 72        unit = f"EXTRACT(year FROM {age})"
    - 73    else:
    - 74        unit = age
    - 75
    - 76    return f"CAST({unit} AS BIGINT)"
    + 52def _date_diff_sql(self, expression):
    + 53    unit = expression.text("unit").upper()
    + 54    factor = DATE_DIFF_FACTOR.get(unit)
    + 55
    + 56    end = f"CAST({expression.this} AS TIMESTAMP)"
    + 57    start = f"CAST({expression.expression} AS TIMESTAMP)"
    + 58
    + 59    if factor is not None:
    + 60        return f"CAST(EXTRACT(epoch FROM {end} - {start}){factor} AS BIGINT)"
    + 61
    + 62    age = f"AGE({end}, {start})"
    + 63
    + 64    if unit == "WEEK":
    + 65        unit = f"EXTRACT(year FROM {age}) * 48 + EXTRACT(month FROM {age}) * 4 + EXTRACT(day FROM {age}) / 7"
    + 66    elif unit == "MONTH":
    + 67        unit = f"EXTRACT(year FROM {age}) * 12 + EXTRACT(month FROM {age})"
    + 68    elif unit == "QUARTER":
    + 69        unit = f"EXTRACT(year FROM {age}) * 4 + EXTRACT(month FROM {age}) / 3"
    + 70    elif unit == "YEAR":
    + 71        unit = f"EXTRACT(year FROM {age})"
    + 72    else:
    + 73        unit = age
    + 74
    + 75    return f"CAST({unit} AS BIGINT)"
    + 76
      77
    - 78
    - 79def _substring_sql(self, expression):
    - 80    this = self.sql(expression, "this")
    - 81    start = self.sql(expression, "start")
    - 82    length = self.sql(expression, "length")
    - 83
    - 84    from_part = f" FROM {start}" if start else ""
    - 85    for_part = f" FOR {length}" if length else ""
    - 86
    - 87    return f"SUBSTRING({this}{from_part}{for_part})"
    + 78def _substring_sql(self, expression):
    + 79    this = self.sql(expression, "this")
    + 80    start = self.sql(expression, "start")
    + 81    length = self.sql(expression, "length")
    + 82
    + 83    from_part = f" FROM {start}" if start else ""
    + 84    for_part = f" FOR {length}" if length else ""
    + 85
    + 86    return f"SUBSTRING({this}{from_part}{for_part})"
    + 87
      88
    - 89
    - 90def _string_agg_sql(self, expression):
    - 91    expression = expression.copy()
    - 92    separator = expression.args.get("separator") or exp.Literal.string(",")
    - 93
    - 94    order = ""
    - 95    this = expression.this
    - 96    if isinstance(this, exp.Order):
    - 97        if this.this:
    - 98            this = this.this.pop()
    - 99        order = self.sql(expression.this)  # Order has a leading space
    -100
    -101    return f"STRING_AGG({self.format_args(this, separator)}{order})"
    + 89def _string_agg_sql(self, expression):
    + 90    expression = expression.copy()
    + 91    separator = expression.args.get("separator") or exp.Literal.string(",")
    + 92
    + 93    order = ""
    + 94    this = expression.this
    + 95    if isinstance(this, exp.Order):
    + 96        if this.this:
    + 97            this = this.this.pop()
    + 98        order = self.sql(expression.this)  # Order has a leading space
    + 99
    +100    return f"STRING_AGG({self.format_args(this, separator)}{order})"
    +101
     102
    -103
    -104def _datatype_sql(self, expression):
    -105    if expression.this == exp.DataType.Type.ARRAY:
    -106        return f"{self.expressions(expression, flat=True)}[]"
    -107    return self.datatype_sql(expression)
    +103def _datatype_sql(self, expression):
    +104    if expression.this == exp.DataType.Type.ARRAY:
    +105        return f"{self.expressions(expression, flat=True)}[]"
    +106    return self.datatype_sql(expression)
    +107
     108
    -109
    -110def _auto_increment_to_serial(expression):
    -111    auto = expression.find(exp.AutoIncrementColumnConstraint)
    -112
    -113    if auto:
    -114        expression = expression.copy()
    -115        expression.args["constraints"].remove(auto.parent)
    -116        kind = expression.args["kind"]
    -117
    -118        if kind.this == exp.DataType.Type.INT:
    -119            kind.replace(exp.DataType(this=exp.DataType.Type.SERIAL))
    -120        elif kind.this == exp.DataType.Type.SMALLINT:
    -121            kind.replace(exp.DataType(this=exp.DataType.Type.SMALLSERIAL))
    -122        elif kind.this == exp.DataType.Type.BIGINT:
    -123            kind.replace(exp.DataType(this=exp.DataType.Type.BIGSERIAL))
    -124
    -125    return expression
    +109def _auto_increment_to_serial(expression):
    +110    auto = expression.find(exp.AutoIncrementColumnConstraint)
    +111
    +112    if auto:
    +113        expression = expression.copy()
    +114        expression.args["constraints"].remove(auto.parent)
    +115        kind = expression.args["kind"]
    +116
    +117        if kind.this == exp.DataType.Type.INT:
    +118            kind.replace(exp.DataType(this=exp.DataType.Type.SERIAL))
    +119        elif kind.this == exp.DataType.Type.SMALLINT:
    +120            kind.replace(exp.DataType(this=exp.DataType.Type.SMALLSERIAL))
    +121        elif kind.this == exp.DataType.Type.BIGINT:
    +122            kind.replace(exp.DataType(this=exp.DataType.Type.BIGSERIAL))
    +123
    +124    return expression
    +125
     126
    -127
    -128def _serial_to_generated(expression):
    -129    kind = expression.args["kind"]
    -130
    -131    if kind.this == exp.DataType.Type.SERIAL:
    -132        data_type = exp.DataType(this=exp.DataType.Type.INT)
    -133    elif kind.this == exp.DataType.Type.SMALLSERIAL:
    -134        data_type = exp.DataType(this=exp.DataType.Type.SMALLINT)
    -135    elif kind.this == exp.DataType.Type.BIGSERIAL:
    -136        data_type = exp.DataType(this=exp.DataType.Type.BIGINT)
    -137    else:
    -138        data_type = None
    -139
    -140    if data_type:
    -141        expression = expression.copy()
    -142        expression.args["kind"].replace(data_type)
    -143        constraints = expression.args["constraints"]
    -144        generated = exp.ColumnConstraint(kind=exp.GeneratedAsIdentityColumnConstraint(this=False))
    -145        notnull = exp.ColumnConstraint(kind=exp.NotNullColumnConstraint())
    -146        if notnull not in constraints:
    -147            constraints.insert(0, notnull)
    -148        if generated not in constraints:
    -149            constraints.insert(0, generated)
    -150
    -151    return expression
    +127def _serial_to_generated(expression):
    +128    kind = expression.args["kind"]
    +129
    +130    if kind.this == exp.DataType.Type.SERIAL:
    +131        data_type = exp.DataType(this=exp.DataType.Type.INT)
    +132    elif kind.this == exp.DataType.Type.SMALLSERIAL:
    +133        data_type = exp.DataType(this=exp.DataType.Type.SMALLINT)
    +134    elif kind.this == exp.DataType.Type.BIGSERIAL:
    +135        data_type = exp.DataType(this=exp.DataType.Type.BIGINT)
    +136    else:
    +137        data_type = None
    +138
    +139    if data_type:
    +140        expression = expression.copy()
    +141        expression.args["kind"].replace(data_type)
    +142        constraints = expression.args["constraints"]
    +143        generated = exp.ColumnConstraint(kind=exp.GeneratedAsIdentityColumnConstraint(this=False))
    +144        notnull = exp.ColumnConstraint(kind=exp.NotNullColumnConstraint())
    +145        if notnull not in constraints:
    +146            constraints.insert(0, notnull)
    +147        if generated not in constraints:
    +148            constraints.insert(0, generated)
    +149
    +150    return expression
    +151
     152
    -153
    -154def _generate_series(args):
    -155    # The goal is to convert step values like '1 day' or INTERVAL '1 day' into INTERVAL '1' day
    -156    step = seq_get(args, 2)
    -157
    -158    if step is None:
    -159        # Postgres allows calls with just two arguments -- the "step" argument defaults to 1
    -160        return exp.GenerateSeries.from_arg_list(args)
    -161
    -162    if step.is_string:
    -163        args[2] = exp.to_interval(step.this)
    -164    elif isinstance(step, exp.Interval) and not step.args.get("unit"):
    -165        args[2] = exp.to_interval(step.this.this)
    -166
    -167    return exp.GenerateSeries.from_arg_list(args)
    +153def _generate_series(args):
    +154    # The goal is to convert step values like '1 day' or INTERVAL '1 day' into INTERVAL '1' day
    +155    step = seq_get(args, 2)
    +156
    +157    if step is None:
    +158        # Postgres allows calls with just two arguments -- the "step" argument defaults to 1
    +159        return exp.GenerateSeries.from_arg_list(args)
    +160
    +161    if step.is_string:
    +162        args[2] = exp.to_interval(step.this)
    +163    elif isinstance(step, exp.Interval) and not step.args.get("unit"):
    +164        args[2] = exp.to_interval(step.this.this)
    +165
    +166    return exp.GenerateSeries.from_arg_list(args)
    +167
     168
    -169
    -170def _to_timestamp(args):
    -171    # TO_TIMESTAMP accepts either a single double argument or (text, text)
    -172    if len(args) == 1:
    -173        # https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-TABLE
    -174        return exp.UnixToTime.from_arg_list(args)
    -175    # https://www.postgresql.org/docs/current/functions-formatting.html
    -176    return format_time_lambda(exp.StrToTime, "postgres")(args)
    +169def _to_timestamp(args):
    +170    # TO_TIMESTAMP accepts either a single double argument or (text, text)
    +171    if len(args) == 1:
    +172        # https://www.postgresql.org/docs/current/functions-datetime.html#FUNCTIONS-DATETIME-TABLE
    +173        return exp.UnixToTime.from_arg_list(args)
    +174    # https://www.postgresql.org/docs/current/functions-formatting.html
    +175    return format_time_lambda(exp.StrToTime, "postgres")(args)
    +176
     177
    -178
    -179class Postgres(Dialect):
    -180    null_ordering = "nulls_are_large"
    -181    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    -182    time_mapping = {
    -183        "AM": "%p",
    -184        "PM": "%p",
    -185        "D": "%u",  # 1-based day of week
    -186        "DD": "%d",  # day of month
    -187        "DDD": "%j",  # zero padded day of year
    -188        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    -189        "FMDDD": "%-j",  # day of year
    -190        "FMHH12": "%-I",  # 9
    -191        "FMHH24": "%-H",  # 9
    -192        "FMMI": "%-M",  # Minute
    -193        "FMMM": "%-m",  # 1
    -194        "FMSS": "%-S",  # Second
    -195        "HH12": "%I",  # 09
    -196        "HH24": "%H",  # 09
    -197        "MI": "%M",  # zero padded minute
    -198        "MM": "%m",  # 01
    -199        "OF": "%z",  # utc offset
    -200        "SS": "%S",  # zero padded second
    -201        "TMDay": "%A",  # TM is locale dependent
    -202        "TMDy": "%a",
    -203        "TMMon": "%b",  # Sep
    -204        "TMMonth": "%B",  # September
    -205        "TZ": "%Z",  # uppercase timezone name
    -206        "US": "%f",  # zero padded microsecond
    -207        "WW": "%U",  # 1-based week of year
    -208        "YY": "%y",  # 15
    -209        "YYYY": "%Y",  # 2015
    -210    }
    -211
    -212    class Tokenizer(tokens.Tokenizer):
    -213        QUOTES = ["'", "$$"]
    -214
    -215        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    -216        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    -217        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    -218
    -219        KEYWORDS = {
    -220            **tokens.Tokenizer.KEYWORDS,
    -221            "~~": TokenType.LIKE,
    -222            "~~*": TokenType.ILIKE,
    -223            "~*": TokenType.IRLIKE,
    -224            "~": TokenType.RLIKE,
    -225            "@>": TokenType.AT_GT,
    -226            "<@": TokenType.LT_AT,
    -227            "BEGIN": TokenType.COMMAND,
    -228            "BEGIN TRANSACTION": TokenType.BEGIN,
    -229            "BIGSERIAL": TokenType.BIGSERIAL,
    -230            "CHARACTER VARYING": TokenType.VARCHAR,
    -231            "DECLARE": TokenType.COMMAND,
    -232            "DO": TokenType.COMMAND,
    -233            "HSTORE": TokenType.HSTORE,
    -234            "JSONB": TokenType.JSONB,
    -235            "REFRESH": TokenType.COMMAND,
    -236            "REINDEX": TokenType.COMMAND,
    -237            "RESET": TokenType.COMMAND,
    -238            "RETURNING": TokenType.RETURNING,
    -239            "REVOKE": TokenType.COMMAND,
    -240            "SERIAL": TokenType.SERIAL,
    -241            "SMALLSERIAL": TokenType.SMALLSERIAL,
    -242            "TEMP": TokenType.TEMPORARY,
    -243            "CSTRING": TokenType.PSEUDO_TYPE,
    -244        }
    -245
    -246        SINGLE_TOKENS = {
    -247            **tokens.Tokenizer.SINGLE_TOKENS,
    -248            "$": TokenType.PARAMETER,
    -249        }
    -250
    -251        VAR_SINGLE_TOKENS = {"$"}
    -252
    -253    class Parser(parser.Parser):
    -254        STRICT_CAST = False
    -255
    -256        FUNCTIONS = {
    -257            **parser.Parser.FUNCTIONS,  # type: ignore
    -258            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -259                this=seq_get(args, 1), unit=seq_get(args, 0)
    -260            ),
    -261            "GENERATE_SERIES": _generate_series,
    -262            "NOW": exp.CurrentTimestamp.from_arg_list,
    -263            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    -264            "TO_TIMESTAMP": _to_timestamp,
    -265        }
    -266
    -267        FUNCTION_PARSERS = {
    -268            **parser.Parser.FUNCTION_PARSERS,
    -269            "DATE_PART": lambda self: self._parse_date_part(),
    -270        }
    -271
    -272        BITWISE = {
    -273            **parser.Parser.BITWISE,  # type: ignore
    -274            TokenType.HASH: exp.BitwiseXor,
    -275        }
    -276
    -277        FACTOR = {
    -278            **parser.Parser.FACTOR,
    -279            TokenType.CARET: exp.Pow,
    -280        }
    -281
    -282        RANGE_PARSERS = {
    -283            **parser.Parser.RANGE_PARSERS,  # type: ignore
    -284            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    -285            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    -286            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    -287        }
    -288
    -289        def _parse_date_part(self) -> exp.Expression:
    -290            part = self._parse_type()
    -291            self._match(TokenType.COMMA)
    -292            value = self._parse_bitwise()
    -293
    -294            if part and part.is_string:
    -295                part = exp.Var(this=part.name)
    -296
    -297            return self.expression(exp.Extract, this=part, expression=value)
    -298
    -299    class Generator(generator.Generator):
    -300        INTERVAL_ALLOWS_PLURAL_FORM = False
    -301        LOCKING_READS_SUPPORTED = True
    -302        JOIN_HINTS = False
    -303        TABLE_HINTS = False
    -304        PARAMETER_TOKEN = "$"
    -305
    -306        TYPE_MAPPING = {
    -307            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -308            exp.DataType.Type.TINYINT: "SMALLINT",
    -309            exp.DataType.Type.FLOAT: "REAL",
    -310            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -311            exp.DataType.Type.BINARY: "BYTEA",
    -312            exp.DataType.Type.VARBINARY: "BYTEA",
    -313            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -314        }
    -315
    -316        TRANSFORMS = {
    -317            **generator.Generator.TRANSFORMS,  # type: ignore
    -318            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    -319            exp.ColumnDef: preprocess(
    -320                [
    -321                    _auto_increment_to_serial,
    -322                    _serial_to_generated,
    -323                ],
    -324            ),
    -325            exp.JSONExtract: arrow_json_extract_sql,
    -326            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -327            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    -328            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    -329            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    -330            exp.Pow: lambda self, e: self.binary(e, "^"),
    -331            exp.CurrentDate: no_paren_current_date_sql,
    -332            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -333            exp.DateAdd: _date_add_sql("+"),
    -334            exp.DateStrToDate: datestrtodate_sql,
    -335            exp.DateSub: _date_add_sql("-"),
    -336            exp.DateDiff: _date_diff_sql,
    -337            exp.LogicalOr: rename_func("BOOL_OR"),
    -338            exp.LogicalAnd: rename_func("BOOL_AND"),
    -339            exp.Max: max_or_greatest,
    -340            exp.Min: min_or_least,
    -341            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    -342            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    -343            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    -344            exp.Merge: preprocess([remove_target_from_merge]),
    -345            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    -346            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    -347            exp.StrPosition: str_position_sql,
    -348            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -349            exp.Substring: _substring_sql,
    -350            exp.TimestampTrunc: timestamptrunc_sql,
    -351            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    -352            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -353            exp.TableSample: no_tablesample_sql,
    -354            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -355            exp.Trim: trim_sql,
    -356            exp.TryCast: no_trycast_sql,
    -357            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    -358            exp.DataType: _datatype_sql,
    -359            exp.GroupConcat: _string_agg_sql,
    -360            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    -361            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -362            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    -363        }
    -364
    -365        PROPERTIES_LOCATION = {
    -366            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -367            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -368            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -369        }
    +178class Postgres(Dialect):
    +179    null_ordering = "nulls_are_large"
    +180    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    +181    time_mapping = {
    +182        "AM": "%p",
    +183        "PM": "%p",
    +184        "D": "%u",  # 1-based day of week
    +185        "DD": "%d",  # day of month
    +186        "DDD": "%j",  # zero padded day of year
    +187        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    +188        "FMDDD": "%-j",  # day of year
    +189        "FMHH12": "%-I",  # 9
    +190        "FMHH24": "%-H",  # 9
    +191        "FMMI": "%-M",  # Minute
    +192        "FMMM": "%-m",  # 1
    +193        "FMSS": "%-S",  # Second
    +194        "HH12": "%I",  # 09
    +195        "HH24": "%H",  # 09
    +196        "MI": "%M",  # zero padded minute
    +197        "MM": "%m",  # 01
    +198        "OF": "%z",  # utc offset
    +199        "SS": "%S",  # zero padded second
    +200        "TMDay": "%A",  # TM is locale dependent
    +201        "TMDy": "%a",
    +202        "TMMon": "%b",  # Sep
    +203        "TMMonth": "%B",  # September
    +204        "TZ": "%Z",  # uppercase timezone name
    +205        "US": "%f",  # zero padded microsecond
    +206        "WW": "%U",  # 1-based week of year
    +207        "YY": "%y",  # 15
    +208        "YYYY": "%Y",  # 2015
    +209    }
    +210
    +211    class Tokenizer(tokens.Tokenizer):
    +212        QUOTES = ["'", "$$"]
    +213
    +214        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    +215        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    +216        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    +217
    +218        KEYWORDS = {
    +219            **tokens.Tokenizer.KEYWORDS,
    +220            "~~": TokenType.LIKE,
    +221            "~~*": TokenType.ILIKE,
    +222            "~*": TokenType.IRLIKE,
    +223            "~": TokenType.RLIKE,
    +224            "@>": TokenType.AT_GT,
    +225            "<@": TokenType.LT_AT,
    +226            "BEGIN": TokenType.COMMAND,
    +227            "BEGIN TRANSACTION": TokenType.BEGIN,
    +228            "BIGSERIAL": TokenType.BIGSERIAL,
    +229            "CHARACTER VARYING": TokenType.VARCHAR,
    +230            "DECLARE": TokenType.COMMAND,
    +231            "DO": TokenType.COMMAND,
    +232            "HSTORE": TokenType.HSTORE,
    +233            "JSONB": TokenType.JSONB,
    +234            "REFRESH": TokenType.COMMAND,
    +235            "REINDEX": TokenType.COMMAND,
    +236            "RESET": TokenType.COMMAND,
    +237            "RETURNING": TokenType.RETURNING,
    +238            "REVOKE": TokenType.COMMAND,
    +239            "SERIAL": TokenType.SERIAL,
    +240            "SMALLSERIAL": TokenType.SMALLSERIAL,
    +241            "TEMP": TokenType.TEMPORARY,
    +242            "CSTRING": TokenType.PSEUDO_TYPE,
    +243        }
    +244
    +245        SINGLE_TOKENS = {
    +246            **tokens.Tokenizer.SINGLE_TOKENS,
    +247            "$": TokenType.PARAMETER,
    +248        }
    +249
    +250        VAR_SINGLE_TOKENS = {"$"}
    +251
    +252    class Parser(parser.Parser):
    +253        STRICT_CAST = False
    +254
    +255        FUNCTIONS = {
    +256            **parser.Parser.FUNCTIONS,  # type: ignore
    +257            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    +258                this=seq_get(args, 1), unit=seq_get(args, 0)
    +259            ),
    +260            "GENERATE_SERIES": _generate_series,
    +261            "NOW": exp.CurrentTimestamp.from_arg_list,
    +262            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    +263            "TO_TIMESTAMP": _to_timestamp,
    +264        }
    +265
    +266        FUNCTION_PARSERS = {
    +267            **parser.Parser.FUNCTION_PARSERS,
    +268            "DATE_PART": lambda self: self._parse_date_part(),
    +269        }
    +270
    +271        BITWISE = {
    +272            **parser.Parser.BITWISE,  # type: ignore
    +273            TokenType.HASH: exp.BitwiseXor,
    +274        }
    +275
    +276        FACTOR = {
    +277            **parser.Parser.FACTOR,
    +278            TokenType.CARET: exp.Pow,
    +279        }
    +280
    +281        RANGE_PARSERS = {
    +282            **parser.Parser.RANGE_PARSERS,  # type: ignore
    +283            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    +284            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    +285            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    +286        }
    +287
    +288        def _parse_date_part(self) -> exp.Expression:
    +289            part = self._parse_type()
    +290            self._match(TokenType.COMMA)
    +291            value = self._parse_bitwise()
    +292
    +293            if part and part.is_string:
    +294                part = exp.Var(this=part.name)
    +295
    +296            return self.expression(exp.Extract, this=part, expression=value)
    +297
    +298    class Generator(generator.Generator):
    +299        INTERVAL_ALLOWS_PLURAL_FORM = False
    +300        LOCKING_READS_SUPPORTED = True
    +301        JOIN_HINTS = False
    +302        TABLE_HINTS = False
    +303        PARAMETER_TOKEN = "$"
    +304
    +305        TYPE_MAPPING = {
    +306            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +307            exp.DataType.Type.TINYINT: "SMALLINT",
    +308            exp.DataType.Type.FLOAT: "REAL",
    +309            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +310            exp.DataType.Type.BINARY: "BYTEA",
    +311            exp.DataType.Type.VARBINARY: "BYTEA",
    +312            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +313        }
    +314
    +315        TRANSFORMS = {
    +316            **generator.Generator.TRANSFORMS,  # type: ignore
    +317            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    +318            exp.ColumnDef: transforms.preprocess(
    +319                [
    +320                    _auto_increment_to_serial,
    +321                    _serial_to_generated,
    +322                ],
    +323            ),
    +324            exp.JSONExtract: arrow_json_extract_sql,
    +325            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +326            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    +327            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    +328            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    +329            exp.Pow: lambda self, e: self.binary(e, "^"),
    +330            exp.CurrentDate: no_paren_current_date_sql,
    +331            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +332            exp.DateAdd: _date_add_sql("+"),
    +333            exp.DateStrToDate: datestrtodate_sql,
    +334            exp.DateSub: _date_add_sql("-"),
    +335            exp.DateDiff: _date_diff_sql,
    +336            exp.LogicalOr: rename_func("BOOL_OR"),
    +337            exp.LogicalAnd: rename_func("BOOL_AND"),
    +338            exp.Max: max_or_greatest,
    +339            exp.Min: min_or_least,
    +340            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    +341            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    +342            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    +343            exp.Merge: transforms.preprocess([transforms.remove_target_from_merge]),
    +344            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    +345            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    +346            exp.StrPosition: str_position_sql,
    +347            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +348            exp.Substring: _substring_sql,
    +349            exp.TimestampTrunc: timestamptrunc_sql,
    +350            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    +351            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +352            exp.TableSample: no_tablesample_sql,
    +353            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +354            exp.Trim: trim_sql,
    +355            exp.TryCast: no_trycast_sql,
    +356            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    +357            exp.DataType: _datatype_sql,
    +358            exp.GroupConcat: _string_agg_sql,
    +359            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    +360            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +361            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    +362        }
    +363
    +364        PROPERTIES_LOCATION = {
    +365            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +366            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +367            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +368        }
     
    @@ -461,197 +460,197 @@
    -
    180class Postgres(Dialect):
    -181    null_ordering = "nulls_are_large"
    -182    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    -183    time_mapping = {
    -184        "AM": "%p",
    -185        "PM": "%p",
    -186        "D": "%u",  # 1-based day of week
    -187        "DD": "%d",  # day of month
    -188        "DDD": "%j",  # zero padded day of year
    -189        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    -190        "FMDDD": "%-j",  # day of year
    -191        "FMHH12": "%-I",  # 9
    -192        "FMHH24": "%-H",  # 9
    -193        "FMMI": "%-M",  # Minute
    -194        "FMMM": "%-m",  # 1
    -195        "FMSS": "%-S",  # Second
    -196        "HH12": "%I",  # 09
    -197        "HH24": "%H",  # 09
    -198        "MI": "%M",  # zero padded minute
    -199        "MM": "%m",  # 01
    -200        "OF": "%z",  # utc offset
    -201        "SS": "%S",  # zero padded second
    -202        "TMDay": "%A",  # TM is locale dependent
    -203        "TMDy": "%a",
    -204        "TMMon": "%b",  # Sep
    -205        "TMMonth": "%B",  # September
    -206        "TZ": "%Z",  # uppercase timezone name
    -207        "US": "%f",  # zero padded microsecond
    -208        "WW": "%U",  # 1-based week of year
    -209        "YY": "%y",  # 15
    -210        "YYYY": "%Y",  # 2015
    -211    }
    -212
    -213    class Tokenizer(tokens.Tokenizer):
    -214        QUOTES = ["'", "$$"]
    -215
    -216        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    -217        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    -218        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    -219
    -220        KEYWORDS = {
    -221            **tokens.Tokenizer.KEYWORDS,
    -222            "~~": TokenType.LIKE,
    -223            "~~*": TokenType.ILIKE,
    -224            "~*": TokenType.IRLIKE,
    -225            "~": TokenType.RLIKE,
    -226            "@>": TokenType.AT_GT,
    -227            "<@": TokenType.LT_AT,
    -228            "BEGIN": TokenType.COMMAND,
    -229            "BEGIN TRANSACTION": TokenType.BEGIN,
    -230            "BIGSERIAL": TokenType.BIGSERIAL,
    -231            "CHARACTER VARYING": TokenType.VARCHAR,
    -232            "DECLARE": TokenType.COMMAND,
    -233            "DO": TokenType.COMMAND,
    -234            "HSTORE": TokenType.HSTORE,
    -235            "JSONB": TokenType.JSONB,
    -236            "REFRESH": TokenType.COMMAND,
    -237            "REINDEX": TokenType.COMMAND,
    -238            "RESET": TokenType.COMMAND,
    -239            "RETURNING": TokenType.RETURNING,
    -240            "REVOKE": TokenType.COMMAND,
    -241            "SERIAL": TokenType.SERIAL,
    -242            "SMALLSERIAL": TokenType.SMALLSERIAL,
    -243            "TEMP": TokenType.TEMPORARY,
    -244            "CSTRING": TokenType.PSEUDO_TYPE,
    -245        }
    -246
    -247        SINGLE_TOKENS = {
    -248            **tokens.Tokenizer.SINGLE_TOKENS,
    -249            "$": TokenType.PARAMETER,
    -250        }
    -251
    -252        VAR_SINGLE_TOKENS = {"$"}
    -253
    -254    class Parser(parser.Parser):
    -255        STRICT_CAST = False
    -256
    -257        FUNCTIONS = {
    -258            **parser.Parser.FUNCTIONS,  # type: ignore
    -259            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -260                this=seq_get(args, 1), unit=seq_get(args, 0)
    -261            ),
    -262            "GENERATE_SERIES": _generate_series,
    -263            "NOW": exp.CurrentTimestamp.from_arg_list,
    -264            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    -265            "TO_TIMESTAMP": _to_timestamp,
    -266        }
    -267
    -268        FUNCTION_PARSERS = {
    -269            **parser.Parser.FUNCTION_PARSERS,
    -270            "DATE_PART": lambda self: self._parse_date_part(),
    -271        }
    -272
    -273        BITWISE = {
    -274            **parser.Parser.BITWISE,  # type: ignore
    -275            TokenType.HASH: exp.BitwiseXor,
    -276        }
    -277
    -278        FACTOR = {
    -279            **parser.Parser.FACTOR,
    -280            TokenType.CARET: exp.Pow,
    -281        }
    -282
    -283        RANGE_PARSERS = {
    -284            **parser.Parser.RANGE_PARSERS,  # type: ignore
    -285            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    -286            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    -287            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    -288        }
    -289
    -290        def _parse_date_part(self) -> exp.Expression:
    -291            part = self._parse_type()
    -292            self._match(TokenType.COMMA)
    -293            value = self._parse_bitwise()
    -294
    -295            if part and part.is_string:
    -296                part = exp.Var(this=part.name)
    -297
    -298            return self.expression(exp.Extract, this=part, expression=value)
    -299
    -300    class Generator(generator.Generator):
    -301        INTERVAL_ALLOWS_PLURAL_FORM = False
    -302        LOCKING_READS_SUPPORTED = True
    -303        JOIN_HINTS = False
    -304        TABLE_HINTS = False
    -305        PARAMETER_TOKEN = "$"
    -306
    -307        TYPE_MAPPING = {
    -308            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -309            exp.DataType.Type.TINYINT: "SMALLINT",
    -310            exp.DataType.Type.FLOAT: "REAL",
    -311            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -312            exp.DataType.Type.BINARY: "BYTEA",
    -313            exp.DataType.Type.VARBINARY: "BYTEA",
    -314            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -315        }
    -316
    -317        TRANSFORMS = {
    -318            **generator.Generator.TRANSFORMS,  # type: ignore
    -319            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    -320            exp.ColumnDef: preprocess(
    -321                [
    -322                    _auto_increment_to_serial,
    -323                    _serial_to_generated,
    -324                ],
    -325            ),
    -326            exp.JSONExtract: arrow_json_extract_sql,
    -327            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -328            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    -329            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    -330            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    -331            exp.Pow: lambda self, e: self.binary(e, "^"),
    -332            exp.CurrentDate: no_paren_current_date_sql,
    -333            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -334            exp.DateAdd: _date_add_sql("+"),
    -335            exp.DateStrToDate: datestrtodate_sql,
    -336            exp.DateSub: _date_add_sql("-"),
    -337            exp.DateDiff: _date_diff_sql,
    -338            exp.LogicalOr: rename_func("BOOL_OR"),
    -339            exp.LogicalAnd: rename_func("BOOL_AND"),
    -340            exp.Max: max_or_greatest,
    -341            exp.Min: min_or_least,
    -342            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    -343            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    -344            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    -345            exp.Merge: preprocess([remove_target_from_merge]),
    -346            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    -347            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    -348            exp.StrPosition: str_position_sql,
    -349            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -350            exp.Substring: _substring_sql,
    -351            exp.TimestampTrunc: timestamptrunc_sql,
    -352            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    -353            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -354            exp.TableSample: no_tablesample_sql,
    -355            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -356            exp.Trim: trim_sql,
    -357            exp.TryCast: no_trycast_sql,
    -358            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    -359            exp.DataType: _datatype_sql,
    -360            exp.GroupConcat: _string_agg_sql,
    -361            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    -362            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -363            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    -364        }
    -365
    -366        PROPERTIES_LOCATION = {
    -367            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -368            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -369            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -370        }
    +            
    179class Postgres(Dialect):
    +180    null_ordering = "nulls_are_large"
    +181    time_format = "'YYYY-MM-DD HH24:MI:SS'"
    +182    time_mapping = {
    +183        "AM": "%p",
    +184        "PM": "%p",
    +185        "D": "%u",  # 1-based day of week
    +186        "DD": "%d",  # day of month
    +187        "DDD": "%j",  # zero padded day of year
    +188        "FMDD": "%-d",  # - is no leading zero for Python; same for FM in postgres
    +189        "FMDDD": "%-j",  # day of year
    +190        "FMHH12": "%-I",  # 9
    +191        "FMHH24": "%-H",  # 9
    +192        "FMMI": "%-M",  # Minute
    +193        "FMMM": "%-m",  # 1
    +194        "FMSS": "%-S",  # Second
    +195        "HH12": "%I",  # 09
    +196        "HH24": "%H",  # 09
    +197        "MI": "%M",  # zero padded minute
    +198        "MM": "%m",  # 01
    +199        "OF": "%z",  # utc offset
    +200        "SS": "%S",  # zero padded second
    +201        "TMDay": "%A",  # TM is locale dependent
    +202        "TMDy": "%a",
    +203        "TMMon": "%b",  # Sep
    +204        "TMMonth": "%B",  # September
    +205        "TZ": "%Z",  # uppercase timezone name
    +206        "US": "%f",  # zero padded microsecond
    +207        "WW": "%U",  # 1-based week of year
    +208        "YY": "%y",  # 15
    +209        "YYYY": "%Y",  # 2015
    +210    }
    +211
    +212    class Tokenizer(tokens.Tokenizer):
    +213        QUOTES = ["'", "$$"]
    +214
    +215        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    +216        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    +217        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    +218
    +219        KEYWORDS = {
    +220            **tokens.Tokenizer.KEYWORDS,
    +221            "~~": TokenType.LIKE,
    +222            "~~*": TokenType.ILIKE,
    +223            "~*": TokenType.IRLIKE,
    +224            "~": TokenType.RLIKE,
    +225            "@>": TokenType.AT_GT,
    +226            "<@": TokenType.LT_AT,
    +227            "BEGIN": TokenType.COMMAND,
    +228            "BEGIN TRANSACTION": TokenType.BEGIN,
    +229            "BIGSERIAL": TokenType.BIGSERIAL,
    +230            "CHARACTER VARYING": TokenType.VARCHAR,
    +231            "DECLARE": TokenType.COMMAND,
    +232            "DO": TokenType.COMMAND,
    +233            "HSTORE": TokenType.HSTORE,
    +234            "JSONB": TokenType.JSONB,
    +235            "REFRESH": TokenType.COMMAND,
    +236            "REINDEX": TokenType.COMMAND,
    +237            "RESET": TokenType.COMMAND,
    +238            "RETURNING": TokenType.RETURNING,
    +239            "REVOKE": TokenType.COMMAND,
    +240            "SERIAL": TokenType.SERIAL,
    +241            "SMALLSERIAL": TokenType.SMALLSERIAL,
    +242            "TEMP": TokenType.TEMPORARY,
    +243            "CSTRING": TokenType.PSEUDO_TYPE,
    +244        }
    +245
    +246        SINGLE_TOKENS = {
    +247            **tokens.Tokenizer.SINGLE_TOKENS,
    +248            "$": TokenType.PARAMETER,
    +249        }
    +250
    +251        VAR_SINGLE_TOKENS = {"$"}
    +252
    +253    class Parser(parser.Parser):
    +254        STRICT_CAST = False
    +255
    +256        FUNCTIONS = {
    +257            **parser.Parser.FUNCTIONS,  # type: ignore
    +258            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    +259                this=seq_get(args, 1), unit=seq_get(args, 0)
    +260            ),
    +261            "GENERATE_SERIES": _generate_series,
    +262            "NOW": exp.CurrentTimestamp.from_arg_list,
    +263            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    +264            "TO_TIMESTAMP": _to_timestamp,
    +265        }
    +266
    +267        FUNCTION_PARSERS = {
    +268            **parser.Parser.FUNCTION_PARSERS,
    +269            "DATE_PART": lambda self: self._parse_date_part(),
    +270        }
    +271
    +272        BITWISE = {
    +273            **parser.Parser.BITWISE,  # type: ignore
    +274            TokenType.HASH: exp.BitwiseXor,
    +275        }
    +276
    +277        FACTOR = {
    +278            **parser.Parser.FACTOR,
    +279            TokenType.CARET: exp.Pow,
    +280        }
    +281
    +282        RANGE_PARSERS = {
    +283            **parser.Parser.RANGE_PARSERS,  # type: ignore
    +284            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    +285            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    +286            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    +287        }
    +288
    +289        def _parse_date_part(self) -> exp.Expression:
    +290            part = self._parse_type()
    +291            self._match(TokenType.COMMA)
    +292            value = self._parse_bitwise()
    +293
    +294            if part and part.is_string:
    +295                part = exp.Var(this=part.name)
    +296
    +297            return self.expression(exp.Extract, this=part, expression=value)
    +298
    +299    class Generator(generator.Generator):
    +300        INTERVAL_ALLOWS_PLURAL_FORM = False
    +301        LOCKING_READS_SUPPORTED = True
    +302        JOIN_HINTS = False
    +303        TABLE_HINTS = False
    +304        PARAMETER_TOKEN = "$"
    +305
    +306        TYPE_MAPPING = {
    +307            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +308            exp.DataType.Type.TINYINT: "SMALLINT",
    +309            exp.DataType.Type.FLOAT: "REAL",
    +310            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +311            exp.DataType.Type.BINARY: "BYTEA",
    +312            exp.DataType.Type.VARBINARY: "BYTEA",
    +313            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +314        }
    +315
    +316        TRANSFORMS = {
    +317            **generator.Generator.TRANSFORMS,  # type: ignore
    +318            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    +319            exp.ColumnDef: transforms.preprocess(
    +320                [
    +321                    _auto_increment_to_serial,
    +322                    _serial_to_generated,
    +323                ],
    +324            ),
    +325            exp.JSONExtract: arrow_json_extract_sql,
    +326            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +327            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    +328            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    +329            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    +330            exp.Pow: lambda self, e: self.binary(e, "^"),
    +331            exp.CurrentDate: no_paren_current_date_sql,
    +332            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +333            exp.DateAdd: _date_add_sql("+"),
    +334            exp.DateStrToDate: datestrtodate_sql,
    +335            exp.DateSub: _date_add_sql("-"),
    +336            exp.DateDiff: _date_diff_sql,
    +337            exp.LogicalOr: rename_func("BOOL_OR"),
    +338            exp.LogicalAnd: rename_func("BOOL_AND"),
    +339            exp.Max: max_or_greatest,
    +340            exp.Min: min_or_least,
    +341            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    +342            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    +343            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    +344            exp.Merge: transforms.preprocess([transforms.remove_target_from_merge]),
    +345            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    +346            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    +347            exp.StrPosition: str_position_sql,
    +348            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +349            exp.Substring: _substring_sql,
    +350            exp.TimestampTrunc: timestamptrunc_sql,
    +351            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    +352            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +353            exp.TableSample: no_tablesample_sql,
    +354            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +355            exp.Trim: trim_sql,
    +356            exp.TryCast: no_trycast_sql,
    +357            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    +358            exp.DataType: _datatype_sql,
    +359            exp.GroupConcat: _string_agg_sql,
    +360            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    +361            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +362            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    +363        }
    +364
    +365        PROPERTIES_LOCATION = {
    +366            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +367            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +368            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +369        }
     
    @@ -686,46 +685,46 @@
    -
    213    class Tokenizer(tokens.Tokenizer):
    -214        QUOTES = ["'", "$$"]
    -215
    -216        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    -217        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    -218        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    -219
    -220        KEYWORDS = {
    -221            **tokens.Tokenizer.KEYWORDS,
    -222            "~~": TokenType.LIKE,
    -223            "~~*": TokenType.ILIKE,
    -224            "~*": TokenType.IRLIKE,
    -225            "~": TokenType.RLIKE,
    -226            "@>": TokenType.AT_GT,
    -227            "<@": TokenType.LT_AT,
    -228            "BEGIN": TokenType.COMMAND,
    -229            "BEGIN TRANSACTION": TokenType.BEGIN,
    -230            "BIGSERIAL": TokenType.BIGSERIAL,
    -231            "CHARACTER VARYING": TokenType.VARCHAR,
    -232            "DECLARE": TokenType.COMMAND,
    -233            "DO": TokenType.COMMAND,
    -234            "HSTORE": TokenType.HSTORE,
    -235            "JSONB": TokenType.JSONB,
    -236            "REFRESH": TokenType.COMMAND,
    -237            "REINDEX": TokenType.COMMAND,
    -238            "RESET": TokenType.COMMAND,
    -239            "RETURNING": TokenType.RETURNING,
    -240            "REVOKE": TokenType.COMMAND,
    -241            "SERIAL": TokenType.SERIAL,
    -242            "SMALLSERIAL": TokenType.SMALLSERIAL,
    -243            "TEMP": TokenType.TEMPORARY,
    -244            "CSTRING": TokenType.PSEUDO_TYPE,
    -245        }
    -246
    -247        SINGLE_TOKENS = {
    -248            **tokens.Tokenizer.SINGLE_TOKENS,
    -249            "$": TokenType.PARAMETER,
    -250        }
    -251
    -252        VAR_SINGLE_TOKENS = {"$"}
    +            
    212    class Tokenizer(tokens.Tokenizer):
    +213        QUOTES = ["'", "$$"]
    +214
    +215        BIT_STRINGS = [("b'", "'"), ("B'", "'")]
    +216        HEX_STRINGS = [("x'", "'"), ("X'", "'")]
    +217        BYTE_STRINGS = [("e'", "'"), ("E'", "'")]
    +218
    +219        KEYWORDS = {
    +220            **tokens.Tokenizer.KEYWORDS,
    +221            "~~": TokenType.LIKE,
    +222            "~~*": TokenType.ILIKE,
    +223            "~*": TokenType.IRLIKE,
    +224            "~": TokenType.RLIKE,
    +225            "@>": TokenType.AT_GT,
    +226            "<@": TokenType.LT_AT,
    +227            "BEGIN": TokenType.COMMAND,
    +228            "BEGIN TRANSACTION": TokenType.BEGIN,
    +229            "BIGSERIAL": TokenType.BIGSERIAL,
    +230            "CHARACTER VARYING": TokenType.VARCHAR,
    +231            "DECLARE": TokenType.COMMAND,
    +232            "DO": TokenType.COMMAND,
    +233            "HSTORE": TokenType.HSTORE,
    +234            "JSONB": TokenType.JSONB,
    +235            "REFRESH": TokenType.COMMAND,
    +236            "REINDEX": TokenType.COMMAND,
    +237            "RESET": TokenType.COMMAND,
    +238            "RETURNING": TokenType.RETURNING,
    +239            "REVOKE": TokenType.COMMAND,
    +240            "SERIAL": TokenType.SERIAL,
    +241            "SMALLSERIAL": TokenType.SMALLSERIAL,
    +242            "TEMP": TokenType.TEMPORARY,
    +243            "CSTRING": TokenType.PSEUDO_TYPE,
    +244        }
    +245
    +246        SINGLE_TOKENS = {
    +247            **tokens.Tokenizer.SINGLE_TOKENS,
    +248            "$": TokenType.PARAMETER,
    +249        }
    +250
    +251        VAR_SINGLE_TOKENS = {"$"}
     
    @@ -753,51 +752,51 @@
    -
    254    class Parser(parser.Parser):
    -255        STRICT_CAST = False
    -256
    -257        FUNCTIONS = {
    -258            **parser.Parser.FUNCTIONS,  # type: ignore
    -259            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -260                this=seq_get(args, 1), unit=seq_get(args, 0)
    -261            ),
    -262            "GENERATE_SERIES": _generate_series,
    -263            "NOW": exp.CurrentTimestamp.from_arg_list,
    -264            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    -265            "TO_TIMESTAMP": _to_timestamp,
    -266        }
    -267
    -268        FUNCTION_PARSERS = {
    -269            **parser.Parser.FUNCTION_PARSERS,
    -270            "DATE_PART": lambda self: self._parse_date_part(),
    -271        }
    -272
    -273        BITWISE = {
    -274            **parser.Parser.BITWISE,  # type: ignore
    -275            TokenType.HASH: exp.BitwiseXor,
    -276        }
    -277
    -278        FACTOR = {
    -279            **parser.Parser.FACTOR,
    -280            TokenType.CARET: exp.Pow,
    -281        }
    -282
    -283        RANGE_PARSERS = {
    -284            **parser.Parser.RANGE_PARSERS,  # type: ignore
    -285            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    -286            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    -287            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    -288        }
    -289
    -290        def _parse_date_part(self) -> exp.Expression:
    -291            part = self._parse_type()
    -292            self._match(TokenType.COMMA)
    -293            value = self._parse_bitwise()
    -294
    -295            if part and part.is_string:
    -296                part = exp.Var(this=part.name)
    -297
    -298            return self.expression(exp.Extract, this=part, expression=value)
    +            
    253    class Parser(parser.Parser):
    +254        STRICT_CAST = False
    +255
    +256        FUNCTIONS = {
    +257            **parser.Parser.FUNCTIONS,  # type: ignore
    +258            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    +259                this=seq_get(args, 1), unit=seq_get(args, 0)
    +260            ),
    +261            "GENERATE_SERIES": _generate_series,
    +262            "NOW": exp.CurrentTimestamp.from_arg_list,
    +263            "TO_CHAR": format_time_lambda(exp.TimeToStr, "postgres"),
    +264            "TO_TIMESTAMP": _to_timestamp,
    +265        }
    +266
    +267        FUNCTION_PARSERS = {
    +268            **parser.Parser.FUNCTION_PARSERS,
    +269            "DATE_PART": lambda self: self._parse_date_part(),
    +270        }
    +271
    +272        BITWISE = {
    +273            **parser.Parser.BITWISE,  # type: ignore
    +274            TokenType.HASH: exp.BitwiseXor,
    +275        }
    +276
    +277        FACTOR = {
    +278            **parser.Parser.FACTOR,
    +279            TokenType.CARET: exp.Pow,
    +280        }
    +281
    +282        RANGE_PARSERS = {
    +283            **parser.Parser.RANGE_PARSERS,  # type: ignore
    +284            TokenType.DAMP: binary_range_parser(exp.ArrayOverlaps),
    +285            TokenType.AT_GT: binary_range_parser(exp.ArrayContains),
    +286            TokenType.LT_AT: binary_range_parser(exp.ArrayContained),
    +287        }
    +288
    +289        def _parse_date_part(self) -> exp.Expression:
    +290            part = self._parse_type()
    +291            self._match(TokenType.COMMA)
    +292            value = self._parse_bitwise()
    +293
    +294            if part and part.is_string:
    +295                part = exp.Var(this=part.name)
    +296
    +297            return self.expression(exp.Extract, this=part, expression=value)
     
    @@ -854,77 +853,77 @@ Default: "nulls_are_small"
    -
    300    class Generator(generator.Generator):
    -301        INTERVAL_ALLOWS_PLURAL_FORM = False
    -302        LOCKING_READS_SUPPORTED = True
    -303        JOIN_HINTS = False
    -304        TABLE_HINTS = False
    -305        PARAMETER_TOKEN = "$"
    -306
    -307        TYPE_MAPPING = {
    -308            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -309            exp.DataType.Type.TINYINT: "SMALLINT",
    -310            exp.DataType.Type.FLOAT: "REAL",
    -311            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    -312            exp.DataType.Type.BINARY: "BYTEA",
    -313            exp.DataType.Type.VARBINARY: "BYTEA",
    -314            exp.DataType.Type.DATETIME: "TIMESTAMP",
    -315        }
    -316
    -317        TRANSFORMS = {
    -318            **generator.Generator.TRANSFORMS,  # type: ignore
    -319            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    -320            exp.ColumnDef: preprocess(
    -321                [
    -322                    _auto_increment_to_serial,
    -323                    _serial_to_generated,
    -324                ],
    -325            ),
    -326            exp.JSONExtract: arrow_json_extract_sql,
    -327            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    -328            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    -329            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    -330            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    -331            exp.Pow: lambda self, e: self.binary(e, "^"),
    -332            exp.CurrentDate: no_paren_current_date_sql,
    -333            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -334            exp.DateAdd: _date_add_sql("+"),
    -335            exp.DateStrToDate: datestrtodate_sql,
    -336            exp.DateSub: _date_add_sql("-"),
    -337            exp.DateDiff: _date_diff_sql,
    -338            exp.LogicalOr: rename_func("BOOL_OR"),
    -339            exp.LogicalAnd: rename_func("BOOL_AND"),
    -340            exp.Max: max_or_greatest,
    -341            exp.Min: min_or_least,
    -342            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    -343            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    -344            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    -345            exp.Merge: preprocess([remove_target_from_merge]),
    -346            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    -347            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    -348            exp.StrPosition: str_position_sql,
    -349            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -350            exp.Substring: _substring_sql,
    -351            exp.TimestampTrunc: timestamptrunc_sql,
    -352            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    -353            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    -354            exp.TableSample: no_tablesample_sql,
    -355            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    -356            exp.Trim: trim_sql,
    -357            exp.TryCast: no_trycast_sql,
    -358            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    -359            exp.DataType: _datatype_sql,
    -360            exp.GroupConcat: _string_agg_sql,
    -361            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    -362            if isinstance(seq_get(e.expressions, 0), exp.Select)
    -363            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    -364        }
    -365
    -366        PROPERTIES_LOCATION = {
    -367            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -368            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    -369            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -370        }
    +            
    299    class Generator(generator.Generator):
    +300        INTERVAL_ALLOWS_PLURAL_FORM = False
    +301        LOCKING_READS_SUPPORTED = True
    +302        JOIN_HINTS = False
    +303        TABLE_HINTS = False
    +304        PARAMETER_TOKEN = "$"
    +305
    +306        TYPE_MAPPING = {
    +307            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +308            exp.DataType.Type.TINYINT: "SMALLINT",
    +309            exp.DataType.Type.FLOAT: "REAL",
    +310            exp.DataType.Type.DOUBLE: "DOUBLE PRECISION",
    +311            exp.DataType.Type.BINARY: "BYTEA",
    +312            exp.DataType.Type.VARBINARY: "BYTEA",
    +313            exp.DataType.Type.DATETIME: "TIMESTAMP",
    +314        }
    +315
    +316        TRANSFORMS = {
    +317            **generator.Generator.TRANSFORMS,  # type: ignore
    +318            exp.BitwiseXor: lambda self, e: self.binary(e, "#"),
    +319            exp.ColumnDef: transforms.preprocess(
    +320                [
    +321                    _auto_increment_to_serial,
    +322                    _serial_to_generated,
    +323                ],
    +324            ),
    +325            exp.JSONExtract: arrow_json_extract_sql,
    +326            exp.JSONExtractScalar: arrow_json_extract_scalar_sql,
    +327            exp.JSONBExtract: lambda self, e: self.binary(e, "#>"),
    +328            exp.JSONBExtractScalar: lambda self, e: self.binary(e, "#>>"),
    +329            exp.JSONBContains: lambda self, e: self.binary(e, "?"),
    +330            exp.Pow: lambda self, e: self.binary(e, "^"),
    +331            exp.CurrentDate: no_paren_current_date_sql,
    +332            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +333            exp.DateAdd: _date_add_sql("+"),
    +334            exp.DateStrToDate: datestrtodate_sql,
    +335            exp.DateSub: _date_add_sql("-"),
    +336            exp.DateDiff: _date_diff_sql,
    +337            exp.LogicalOr: rename_func("BOOL_OR"),
    +338            exp.LogicalAnd: rename_func("BOOL_AND"),
    +339            exp.Max: max_or_greatest,
    +340            exp.Min: min_or_least,
    +341            exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"),
    +342            exp.ArrayContains: lambda self, e: self.binary(e, "@>"),
    +343            exp.ArrayContained: lambda self, e: self.binary(e, "<@"),
    +344            exp.Merge: transforms.preprocess([transforms.remove_target_from_merge]),
    +345            exp.RegexpLike: lambda self, e: self.binary(e, "~"),
    +346            exp.RegexpILike: lambda self, e: self.binary(e, "~*"),
    +347            exp.StrPosition: str_position_sql,
    +348            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    +349            exp.Substring: _substring_sql,
    +350            exp.TimestampTrunc: timestamptrunc_sql,
    +351            exp.TimeStrToTime: lambda self, e: f"CAST({self.sql(e, 'this')} AS TIMESTAMP)",
    +352            exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})",
    +353            exp.TableSample: no_tablesample_sql,
    +354            exp.ToChar: lambda self, e: self.function_fallback_sql(e),
    +355            exp.Trim: trim_sql,
    +356            exp.TryCast: no_trycast_sql,
    +357            exp.UnixToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')})",
    +358            exp.DataType: _datatype_sql,
    +359            exp.GroupConcat: _string_agg_sql,
    +360            exp.Array: lambda self, e: f"{self.normalize_func('ARRAY')}({self.sql(e.expressions[0])})"
    +361            if isinstance(seq_get(e.expressions, 0), exp.Select)
    +362            else f"{self.normalize_func('ARRAY')}[{self.expressions(e, flat=True)}]",
    +363        }
    +364
    +365        PROPERTIES_LOCATION = {
    +366            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +367            exp.TransientProperty: exp.Properties.Location.UNSUPPORTED,
    +368            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +369        }
     
    @@ -1096,7 +1095,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1105,6 +1104,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/presto.html b/docs/sqlglot/dialects/presto.html index d78e456..a09aab9 100644 --- a/docs/sqlglot/dialects/presto.html +++ b/docs/sqlglot/dialects/presto.html @@ -215,7 +215,7 @@
    130def _sequence_sql(self: generator.Generator, expression: exp.GenerateSeries) -> str: 131 start = expression.args["start"] 132 end = expression.args["end"] -133 step = expression.args.get("step", 1) # Postgres defaults to 1 for generate_series +133 step = expression.args.get("step") 134 135 target_type = None 136 @@ -232,198 +232,207 @@ 147 else: 148 start = exp.Cast(this=start, to=to) 149 -150 return self.func("SEQUENCE", start, end, step) -151 -152 -153def _ensure_utf8(charset: exp.Literal) -> None: -154 if charset.name.lower() != "utf-8": -155 raise UnsupportedError(f"Unsupported charset {charset}") +150 sql = self.func("SEQUENCE", start, end, step) +151 if isinstance(expression.parent, exp.Table): +152 sql = f"UNNEST({sql})" +153 +154 return sql +155 156 -157 -158def _approx_percentile(args: t.Sequence) -> exp.Expression: -159 if len(args) == 4: -160 return exp.ApproxQuantile( -161 this=seq_get(args, 0), -162 weight=seq_get(args, 1), -163 quantile=seq_get(args, 2), -164 accuracy=seq_get(args, 3), -165 ) -166 if len(args) == 3: -167 return exp.ApproxQuantile( -168 this=seq_get(args, 0), -169 quantile=seq_get(args, 1), -170 accuracy=seq_get(args, 2), -171 ) -172 return exp.ApproxQuantile.from_arg_list(args) -173 -174 -175def _from_unixtime(args: t.Sequence) -> exp.Expression: -176 if len(args) == 3: -177 return exp.UnixToTime( -178 this=seq_get(args, 0), -179 hours=seq_get(args, 1), -180 minutes=seq_get(args, 2), -181 ) -182 if len(args) == 2: -183 return exp.UnixToTime( -184 this=seq_get(args, 0), -185 zone=seq_get(args, 1), -186 ) -187 return exp.UnixToTime.from_arg_list(args) -188 -189 -190class Presto(Dialect): -191 index_offset = 1 -192 null_ordering = "nulls_are_last" -193 time_format = MySQL.time_format # type: ignore -194 time_mapping = MySQL.time_mapping # type: ignore -195 -196 class Tokenizer(tokens.Tokenizer): -197 KEYWORDS = { -198 **tokens.Tokenizer.KEYWORDS, -199 "START": TokenType.BEGIN, -200 "ROW": TokenType.STRUCT, -201 } -202 -203 class Parser(parser.Parser): -204 FUNCTIONS = { -205 **parser.Parser.FUNCTIONS, # type: ignore -206 "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list, -207 "CARDINALITY": exp.ArraySize.from_arg_list, -208 "CONTAINS": exp.ArrayContains.from_arg_list, -209 "DATE_ADD": lambda args: exp.DateAdd( -210 this=seq_get(args, 2), -211 expression=seq_get(args, 1), -212 unit=seq_get(args, 0), -213 ), -214 "DATE_DIFF": lambda args: exp.DateDiff( +157def _ensure_utf8(charset: exp.Literal) -> None: +158 if charset.name.lower() != "utf-8": +159 raise UnsupportedError(f"Unsupported charset {charset}") +160 +161 +162def _approx_percentile(args: t.Sequence) -> exp.Expression: +163 if len(args) == 4: +164 return exp.ApproxQuantile( +165 this=seq_get(args, 0), +166 weight=seq_get(args, 1), +167 quantile=seq_get(args, 2), +168 accuracy=seq_get(args, 3), +169 ) +170 if len(args) == 3: +171 return exp.ApproxQuantile( +172 this=seq_get(args, 0), +173 quantile=seq_get(args, 1), +174 accuracy=seq_get(args, 2), +175 ) +176 return exp.ApproxQuantile.from_arg_list(args) +177 +178 +179def _from_unixtime(args: t.Sequence) -> exp.Expression: +180 if len(args) == 3: +181 return exp.UnixToTime( +182 this=seq_get(args, 0), +183 hours=seq_get(args, 1), +184 minutes=seq_get(args, 2), +185 ) +186 if len(args) == 2: +187 return exp.UnixToTime( +188 this=seq_get(args, 0), +189 zone=seq_get(args, 1), +190 ) +191 return exp.UnixToTime.from_arg_list(args) +192 +193 +194class Presto(Dialect): +195 index_offset = 1 +196 null_ordering = "nulls_are_last" +197 time_format = MySQL.time_format # type: ignore +198 time_mapping = MySQL.time_mapping # type: ignore +199 +200 class Tokenizer(tokens.Tokenizer): +201 KEYWORDS = { +202 **tokens.Tokenizer.KEYWORDS, +203 "START": TokenType.BEGIN, +204 "ROW": TokenType.STRUCT, +205 } +206 +207 class Parser(parser.Parser): +208 FUNCTIONS = { +209 **parser.Parser.FUNCTIONS, # type: ignore +210 "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list, +211 "APPROX_PERCENTILE": _approx_percentile, +212 "CARDINALITY": exp.ArraySize.from_arg_list, +213 "CONTAINS": exp.ArrayContains.from_arg_list, +214 "DATE_ADD": lambda args: exp.DateAdd( 215 this=seq_get(args, 2), 216 expression=seq_get(args, 1), 217 unit=seq_get(args, 0), 218 ), -219 "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"), -220 "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"), -221 "DATE_TRUNC": date_trunc_to_time, -222 "FROM_UNIXTIME": _from_unixtime, -223 "NOW": exp.CurrentTimestamp.from_arg_list, -224 "STRPOS": lambda args: exp.StrPosition( -225 this=seq_get(args, 0), -226 substr=seq_get(args, 1), -227 instance=seq_get(args, 2), -228 ), -229 "TO_UNIXTIME": exp.TimeToUnix.from_arg_list, -230 "APPROX_PERCENTILE": _approx_percentile, -231 "FROM_HEX": exp.Unhex.from_arg_list, -232 "TO_HEX": exp.Hex.from_arg_list, -233 "TO_UTF8": lambda args: exp.Encode( -234 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") -235 ), -236 "FROM_UTF8": lambda args: exp.Decode( -237 this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8") +219 "DATE_DIFF": lambda args: exp.DateDiff( +220 this=seq_get(args, 2), +221 expression=seq_get(args, 1), +222 unit=seq_get(args, 0), +223 ), +224 "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"), +225 "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"), +226 "DATE_TRUNC": date_trunc_to_time, +227 "FROM_HEX": exp.Unhex.from_arg_list, +228 "FROM_UNIXTIME": _from_unixtime, +229 "FROM_UTF8": lambda args: exp.Decode( +230 this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8") +231 ), +232 "NOW": exp.CurrentTimestamp.from_arg_list, +233 "SEQUENCE": exp.GenerateSeries.from_arg_list, +234 "STRPOS": lambda args: exp.StrPosition( +235 this=seq_get(args, 0), +236 substr=seq_get(args, 1), +237 instance=seq_get(args, 2), 238 ), -239 } -240 FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() -241 FUNCTION_PARSERS.pop("TRIM") -242 -243 class Generator(generator.Generator): -244 INTERVAL_ALLOWS_PLURAL_FORM = False -245 JOIN_HINTS = False -246 TABLE_HINTS = False -247 STRUCT_DELIMITER = ("(", ")") -248 -249 PROPERTIES_LOCATION = { -250 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -251 exp.LocationProperty: exp.Properties.Location.UNSUPPORTED, -252 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -253 } -254 -255 TYPE_MAPPING = { -256 **generator.Generator.TYPE_MAPPING, # type: ignore -257 exp.DataType.Type.INT: "INTEGER", -258 exp.DataType.Type.FLOAT: "REAL", -259 exp.DataType.Type.BINARY: "VARBINARY", -260 exp.DataType.Type.TEXT: "VARCHAR", -261 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", -262 exp.DataType.Type.STRUCT: "ROW", -263 } -264 -265 TRANSFORMS = { -266 **generator.Generator.TRANSFORMS, # type: ignore -267 **transforms.UNALIAS_GROUP, # type: ignore -268 exp.ApproxDistinct: _approx_distinct_sql, -269 exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]", -270 exp.ArrayConcat: rename_func("CONCAT"), -271 exp.ArrayContains: rename_func("CONTAINS"), -272 exp.ArraySize: rename_func("CARDINALITY"), -273 exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -274 exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -275 exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})", -276 exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -277 exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -278 exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})", -279 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", -280 exp.DataType: _datatype_sql, -281 exp.DateAdd: lambda self, e: self.func( -282 "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this -283 ), -284 exp.DateDiff: lambda self, e: self.func( -285 "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this -286 ), -287 exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)", -288 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)", -289 exp.Decode: _decode_sql, -290 exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)", -291 exp.Encode: _encode_sql, -292 exp.GenerateSeries: _sequence_sql, -293 exp.Hex: rename_func("TO_HEX"), -294 exp.If: if_sql, -295 exp.ILike: no_ilike_sql, -296 exp.Initcap: _initcap_sql, -297 exp.Lateral: _explode_to_unnest_sql, -298 exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), -299 exp.LogicalOr: rename_func("BOOL_OR"), -300 exp.LogicalAnd: rename_func("BOOL_AND"), -301 exp.Quantile: _quantile_sql, -302 exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"), -303 exp.SafeDivide: no_safe_divide_sql, -304 exp.Schema: _schema_sql, -305 exp.Select: transforms.preprocess( -306 [transforms.eliminate_qualify, transforms.explode_to_unnest] -307 ), -308 exp.SortArray: _no_sort_array, -309 exp.StrPosition: rename_func("STRPOS"), -310 exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)", -311 exp.StrToTime: _str_to_time_sql, -312 exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))", -313 exp.StructExtract: struct_extract_sql, -314 exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'", -315 exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'", -316 exp.TimestampTrunc: timestamptrunc_sql, -317 exp.TimeStrToDate: timestrtotime_sql, -318 exp.TimeStrToTime: timestrtotime_sql, -319 exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))", -320 exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})", -321 exp.TimeToUnix: rename_func("TO_UNIXTIME"), -322 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", -323 exp.TsOrDsAdd: _ts_or_ds_add_sql, -324 exp.TsOrDsToDate: _ts_or_ds_to_date_sql, -325 exp.Unhex: rename_func("FROM_HEX"), -326 exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})", -327 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -328 exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)", -329 exp.VariancePop: rename_func("VAR_POP"), -330 } -331 -332 def interval_sql(self, expression: exp.Interval) -> str: -333 unit = self.sql(expression, "unit") -334 if expression.this and unit.lower().startswith("week"): -335 return f"({expression.this.name} * INTERVAL '7' day)" -336 return super().interval_sql(expression) -337 -338 def transaction_sql(self, expression: exp.Transaction) -> str: -339 modes = expression.args.get("modes") -340 modes = f" {', '.join(modes)}" if modes else "" -341 return f"START TRANSACTION{modes}" +239 "TO_UNIXTIME": exp.TimeToUnix.from_arg_list, +240 "TO_HEX": exp.Hex.from_arg_list, +241 "TO_UTF8": lambda args: exp.Encode( +242 this=seq_get(args, 0), charset=exp.Literal.string("utf-8") +243 ), +244 } +245 FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() +246 FUNCTION_PARSERS.pop("TRIM") +247 +248 class Generator(generator.Generator): +249 INTERVAL_ALLOWS_PLURAL_FORM = False +250 JOIN_HINTS = False +251 TABLE_HINTS = False +252 STRUCT_DELIMITER = ("(", ")") +253 +254 PROPERTIES_LOCATION = { +255 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +256 exp.LocationProperty: exp.Properties.Location.UNSUPPORTED, +257 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +258 } +259 +260 TYPE_MAPPING = { +261 **generator.Generator.TYPE_MAPPING, # type: ignore +262 exp.DataType.Type.INT: "INTEGER", +263 exp.DataType.Type.FLOAT: "REAL", +264 exp.DataType.Type.BINARY: "VARBINARY", +265 exp.DataType.Type.TEXT: "VARCHAR", +266 exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", +267 exp.DataType.Type.STRUCT: "ROW", +268 } +269 +270 TRANSFORMS = { +271 **generator.Generator.TRANSFORMS, # type: ignore +272 exp.ApproxDistinct: _approx_distinct_sql, +273 exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]", +274 exp.ArrayConcat: rename_func("CONCAT"), +275 exp.ArrayContains: rename_func("CONTAINS"), +276 exp.ArraySize: rename_func("CARDINALITY"), +277 exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +278 exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +279 exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})", +280 exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +281 exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +282 exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})", +283 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", +284 exp.DataType: _datatype_sql, +285 exp.DateAdd: lambda self, e: self.func( +286 "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this +287 ), +288 exp.DateDiff: lambda self, e: self.func( +289 "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this +290 ), +291 exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)", +292 exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)", +293 exp.Decode: _decode_sql, +294 exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)", +295 exp.Encode: _encode_sql, +296 exp.GenerateSeries: _sequence_sql, +297 exp.Group: transforms.preprocess([transforms.unalias_group]), +298 exp.Hex: rename_func("TO_HEX"), +299 exp.If: if_sql, +300 exp.ILike: no_ilike_sql, +301 exp.Initcap: _initcap_sql, +302 exp.Lateral: _explode_to_unnest_sql, +303 exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"), +304 exp.LogicalOr: rename_func("BOOL_OR"), +305 exp.LogicalAnd: rename_func("BOOL_AND"), +306 exp.Quantile: _quantile_sql, +307 exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"), +308 exp.SafeDivide: no_safe_divide_sql, +309 exp.Schema: _schema_sql, +310 exp.Select: transforms.preprocess( +311 [ +312 transforms.eliminate_qualify, +313 transforms.eliminate_distinct_on, +314 transforms.explode_to_unnest, +315 ] +316 ), +317 exp.SortArray: _no_sort_array, +318 exp.StrPosition: rename_func("STRPOS"), +319 exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)", +320 exp.StrToTime: _str_to_time_sql, +321 exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))", +322 exp.StructExtract: struct_extract_sql, +323 exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'", +324 exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'", +325 exp.TimestampTrunc: timestamptrunc_sql, +326 exp.TimeStrToDate: timestrtotime_sql, +327 exp.TimeStrToTime: timestrtotime_sql, +328 exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))", +329 exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})", +330 exp.TimeToUnix: rename_func("TO_UNIXTIME"), +331 exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)", +332 exp.TsOrDsAdd: _ts_or_ds_add_sql, +333 exp.TsOrDsToDate: _ts_or_ds_to_date_sql, +334 exp.Unhex: rename_func("FROM_HEX"), +335 exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})", +336 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +337 exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)", +338 exp.VariancePop: rename_func("VAR_POP"), +339 } +340 +341 def interval_sql(self, expression: exp.Interval) -> str: +342 unit = self.sql(expression, "unit") +343 if expression.this and unit.lower().startswith("week"): +344 return f"({expression.this.name} * INTERVAL '7' day)" +345 return super().interval_sql(expression) +346 +347 def transaction_sql(self, expression: exp.Transaction) -> str: +348 modes = expression.args.get("modes") +349 modes = f" {', '.join(modes)}" if modes else "" +350 return f"START TRANSACTION{modes}"
    @@ -439,158 +448,163 @@ -
    191class Presto(Dialect):
    -192    index_offset = 1
    -193    null_ordering = "nulls_are_last"
    -194    time_format = MySQL.time_format  # type: ignore
    -195    time_mapping = MySQL.time_mapping  # type: ignore
    -196
    -197    class Tokenizer(tokens.Tokenizer):
    -198        KEYWORDS = {
    -199            **tokens.Tokenizer.KEYWORDS,
    -200            "START": TokenType.BEGIN,
    -201            "ROW": TokenType.STRUCT,
    -202        }
    -203
    -204    class Parser(parser.Parser):
    -205        FUNCTIONS = {
    -206            **parser.Parser.FUNCTIONS,  # type: ignore
    -207            "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -208            "CARDINALITY": exp.ArraySize.from_arg_list,
    -209            "CONTAINS": exp.ArrayContains.from_arg_list,
    -210            "DATE_ADD": lambda args: exp.DateAdd(
    -211                this=seq_get(args, 2),
    -212                expression=seq_get(args, 1),
    -213                unit=seq_get(args, 0),
    -214            ),
    -215            "DATE_DIFF": lambda args: exp.DateDiff(
    +            
    195class Presto(Dialect):
    +196    index_offset = 1
    +197    null_ordering = "nulls_are_last"
    +198    time_format = MySQL.time_format  # type: ignore
    +199    time_mapping = MySQL.time_mapping  # type: ignore
    +200
    +201    class Tokenizer(tokens.Tokenizer):
    +202        KEYWORDS = {
    +203            **tokens.Tokenizer.KEYWORDS,
    +204            "START": TokenType.BEGIN,
    +205            "ROW": TokenType.STRUCT,
    +206        }
    +207
    +208    class Parser(parser.Parser):
    +209        FUNCTIONS = {
    +210            **parser.Parser.FUNCTIONS,  # type: ignore
    +211            "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +212            "APPROX_PERCENTILE": _approx_percentile,
    +213            "CARDINALITY": exp.ArraySize.from_arg_list,
    +214            "CONTAINS": exp.ArrayContains.from_arg_list,
    +215            "DATE_ADD": lambda args: exp.DateAdd(
     216                this=seq_get(args, 2),
     217                expression=seq_get(args, 1),
     218                unit=seq_get(args, 0),
     219            ),
    -220            "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"),
    -221            "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"),
    -222            "DATE_TRUNC": date_trunc_to_time,
    -223            "FROM_UNIXTIME": _from_unixtime,
    -224            "NOW": exp.CurrentTimestamp.from_arg_list,
    -225            "STRPOS": lambda args: exp.StrPosition(
    -226                this=seq_get(args, 0),
    -227                substr=seq_get(args, 1),
    -228                instance=seq_get(args, 2),
    -229            ),
    -230            "TO_UNIXTIME": exp.TimeToUnix.from_arg_list,
    -231            "APPROX_PERCENTILE": _approx_percentile,
    -232            "FROM_HEX": exp.Unhex.from_arg_list,
    -233            "TO_HEX": exp.Hex.from_arg_list,
    -234            "TO_UTF8": lambda args: exp.Encode(
    -235                this=seq_get(args, 0), charset=exp.Literal.string("utf-8")
    -236            ),
    -237            "FROM_UTF8": lambda args: exp.Decode(
    -238                this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8")
    +220            "DATE_DIFF": lambda args: exp.DateDiff(
    +221                this=seq_get(args, 2),
    +222                expression=seq_get(args, 1),
    +223                unit=seq_get(args, 0),
    +224            ),
    +225            "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"),
    +226            "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"),
    +227            "DATE_TRUNC": date_trunc_to_time,
    +228            "FROM_HEX": exp.Unhex.from_arg_list,
    +229            "FROM_UNIXTIME": _from_unixtime,
    +230            "FROM_UTF8": lambda args: exp.Decode(
    +231                this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8")
    +232            ),
    +233            "NOW": exp.CurrentTimestamp.from_arg_list,
    +234            "SEQUENCE": exp.GenerateSeries.from_arg_list,
    +235            "STRPOS": lambda args: exp.StrPosition(
    +236                this=seq_get(args, 0),
    +237                substr=seq_get(args, 1),
    +238                instance=seq_get(args, 2),
     239            ),
    -240        }
    -241        FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy()
    -242        FUNCTION_PARSERS.pop("TRIM")
    -243
    -244    class Generator(generator.Generator):
    -245        INTERVAL_ALLOWS_PLURAL_FORM = False
    -246        JOIN_HINTS = False
    -247        TABLE_HINTS = False
    -248        STRUCT_DELIMITER = ("(", ")")
    -249
    -250        PROPERTIES_LOCATION = {
    -251            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -252            exp.LocationProperty: exp.Properties.Location.UNSUPPORTED,
    -253            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -254        }
    -255
    -256        TYPE_MAPPING = {
    -257            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -258            exp.DataType.Type.INT: "INTEGER",
    -259            exp.DataType.Type.FLOAT: "REAL",
    -260            exp.DataType.Type.BINARY: "VARBINARY",
    -261            exp.DataType.Type.TEXT: "VARCHAR",
    -262            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -263            exp.DataType.Type.STRUCT: "ROW",
    -264        }
    -265
    -266        TRANSFORMS = {
    -267            **generator.Generator.TRANSFORMS,  # type: ignore
    -268            **transforms.UNALIAS_GROUP,  # type: ignore
    -269            exp.ApproxDistinct: _approx_distinct_sql,
    -270            exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]",
    -271            exp.ArrayConcat: rename_func("CONCAT"),
    -272            exp.ArrayContains: rename_func("CONTAINS"),
    -273            exp.ArraySize: rename_func("CARDINALITY"),
    -274            exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -275            exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -276            exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})",
    -277            exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -278            exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -279            exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -280            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -281            exp.DataType: _datatype_sql,
    -282            exp.DateAdd: lambda self, e: self.func(
    -283                "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    -284            ),
    -285            exp.DateDiff: lambda self, e: self.func(
    -286                "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    -287            ),
    -288            exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)",
    -289            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)",
    -290            exp.Decode: _decode_sql,
    -291            exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)",
    -292            exp.Encode: _encode_sql,
    -293            exp.GenerateSeries: _sequence_sql,
    -294            exp.Hex: rename_func("TO_HEX"),
    -295            exp.If: if_sql,
    -296            exp.ILike: no_ilike_sql,
    -297            exp.Initcap: _initcap_sql,
    -298            exp.Lateral: _explode_to_unnest_sql,
    -299            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
    -300            exp.LogicalOr: rename_func("BOOL_OR"),
    -301            exp.LogicalAnd: rename_func("BOOL_AND"),
    -302            exp.Quantile: _quantile_sql,
    -303            exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"),
    -304            exp.SafeDivide: no_safe_divide_sql,
    -305            exp.Schema: _schema_sql,
    -306            exp.Select: transforms.preprocess(
    -307                [transforms.eliminate_qualify, transforms.explode_to_unnest]
    -308            ),
    -309            exp.SortArray: _no_sort_array,
    -310            exp.StrPosition: rename_func("STRPOS"),
    -311            exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)",
    -312            exp.StrToTime: _str_to_time_sql,
    -313            exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))",
    -314            exp.StructExtract: struct_extract_sql,
    -315            exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'",
    -316            exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'",
    -317            exp.TimestampTrunc: timestamptrunc_sql,
    -318            exp.TimeStrToDate: timestrtotime_sql,
    -319            exp.TimeStrToTime: timestrtotime_sql,
    -320            exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))",
    -321            exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})",
    -322            exp.TimeToUnix: rename_func("TO_UNIXTIME"),
    -323            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
    -324            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    -325            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    -326            exp.Unhex: rename_func("FROM_HEX"),
    -327            exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})",
    -328            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -329            exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)",
    -330            exp.VariancePop: rename_func("VAR_POP"),
    -331        }
    -332
    -333        def interval_sql(self, expression: exp.Interval) -> str:
    -334            unit = self.sql(expression, "unit")
    -335            if expression.this and unit.lower().startswith("week"):
    -336                return f"({expression.this.name} * INTERVAL '7' day)"
    -337            return super().interval_sql(expression)
    -338
    -339        def transaction_sql(self, expression: exp.Transaction) -> str:
    -340            modes = expression.args.get("modes")
    -341            modes = f" {', '.join(modes)}" if modes else ""
    -342            return f"START TRANSACTION{modes}"
    +240            "TO_UNIXTIME": exp.TimeToUnix.from_arg_list,
    +241            "TO_HEX": exp.Hex.from_arg_list,
    +242            "TO_UTF8": lambda args: exp.Encode(
    +243                this=seq_get(args, 0), charset=exp.Literal.string("utf-8")
    +244            ),
    +245        }
    +246        FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy()
    +247        FUNCTION_PARSERS.pop("TRIM")
    +248
    +249    class Generator(generator.Generator):
    +250        INTERVAL_ALLOWS_PLURAL_FORM = False
    +251        JOIN_HINTS = False
    +252        TABLE_HINTS = False
    +253        STRUCT_DELIMITER = ("(", ")")
    +254
    +255        PROPERTIES_LOCATION = {
    +256            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +257            exp.LocationProperty: exp.Properties.Location.UNSUPPORTED,
    +258            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +259        }
    +260
    +261        TYPE_MAPPING = {
    +262            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +263            exp.DataType.Type.INT: "INTEGER",
    +264            exp.DataType.Type.FLOAT: "REAL",
    +265            exp.DataType.Type.BINARY: "VARBINARY",
    +266            exp.DataType.Type.TEXT: "VARCHAR",
    +267            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +268            exp.DataType.Type.STRUCT: "ROW",
    +269        }
    +270
    +271        TRANSFORMS = {
    +272            **generator.Generator.TRANSFORMS,  # type: ignore
    +273            exp.ApproxDistinct: _approx_distinct_sql,
    +274            exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]",
    +275            exp.ArrayConcat: rename_func("CONCAT"),
    +276            exp.ArrayContains: rename_func("CONTAINS"),
    +277            exp.ArraySize: rename_func("CARDINALITY"),
    +278            exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +279            exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +280            exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})",
    +281            exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +282            exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +283            exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +284            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +285            exp.DataType: _datatype_sql,
    +286            exp.DateAdd: lambda self, e: self.func(
    +287                "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    +288            ),
    +289            exp.DateDiff: lambda self, e: self.func(
    +290                "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    +291            ),
    +292            exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)",
    +293            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)",
    +294            exp.Decode: _decode_sql,
    +295            exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)",
    +296            exp.Encode: _encode_sql,
    +297            exp.GenerateSeries: _sequence_sql,
    +298            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +299            exp.Hex: rename_func("TO_HEX"),
    +300            exp.If: if_sql,
    +301            exp.ILike: no_ilike_sql,
    +302            exp.Initcap: _initcap_sql,
    +303            exp.Lateral: _explode_to_unnest_sql,
    +304            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
    +305            exp.LogicalOr: rename_func("BOOL_OR"),
    +306            exp.LogicalAnd: rename_func("BOOL_AND"),
    +307            exp.Quantile: _quantile_sql,
    +308            exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"),
    +309            exp.SafeDivide: no_safe_divide_sql,
    +310            exp.Schema: _schema_sql,
    +311            exp.Select: transforms.preprocess(
    +312                [
    +313                    transforms.eliminate_qualify,
    +314                    transforms.eliminate_distinct_on,
    +315                    transforms.explode_to_unnest,
    +316                ]
    +317            ),
    +318            exp.SortArray: _no_sort_array,
    +319            exp.StrPosition: rename_func("STRPOS"),
    +320            exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)",
    +321            exp.StrToTime: _str_to_time_sql,
    +322            exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))",
    +323            exp.StructExtract: struct_extract_sql,
    +324            exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'",
    +325            exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'",
    +326            exp.TimestampTrunc: timestamptrunc_sql,
    +327            exp.TimeStrToDate: timestrtotime_sql,
    +328            exp.TimeStrToTime: timestrtotime_sql,
    +329            exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))",
    +330            exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})",
    +331            exp.TimeToUnix: rename_func("TO_UNIXTIME"),
    +332            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
    +333            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    +334            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    +335            exp.Unhex: rename_func("FROM_HEX"),
    +336            exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})",
    +337            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +338            exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)",
    +339            exp.VariancePop: rename_func("VAR_POP"),
    +340        }
    +341
    +342        def interval_sql(self, expression: exp.Interval) -> str:
    +343            unit = self.sql(expression, "unit")
    +344            if expression.this and unit.lower().startswith("week"):
    +345                return f"({expression.this.name} * INTERVAL '7' day)"
    +346            return super().interval_sql(expression)
    +347
    +348        def transaction_sql(self, expression: exp.Transaction) -> str:
    +349            modes = expression.args.get("modes")
    +350            modes = f" {', '.join(modes)}" if modes else ""
    +351            return f"START TRANSACTION{modes}"
     
    @@ -625,12 +639,12 @@
    -
    197    class Tokenizer(tokens.Tokenizer):
    -198        KEYWORDS = {
    -199            **tokens.Tokenizer.KEYWORDS,
    -200            "START": TokenType.BEGIN,
    -201            "ROW": TokenType.STRUCT,
    -202        }
    +            
    201    class Tokenizer(tokens.Tokenizer):
    +202        KEYWORDS = {
    +203            **tokens.Tokenizer.KEYWORDS,
    +204            "START": TokenType.BEGIN,
    +205            "ROW": TokenType.STRUCT,
    +206        }
     
    @@ -658,45 +672,46 @@
    -
    204    class Parser(parser.Parser):
    -205        FUNCTIONS = {
    -206            **parser.Parser.FUNCTIONS,  # type: ignore
    -207            "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list,
    -208            "CARDINALITY": exp.ArraySize.from_arg_list,
    -209            "CONTAINS": exp.ArrayContains.from_arg_list,
    -210            "DATE_ADD": lambda args: exp.DateAdd(
    -211                this=seq_get(args, 2),
    -212                expression=seq_get(args, 1),
    -213                unit=seq_get(args, 0),
    -214            ),
    -215            "DATE_DIFF": lambda args: exp.DateDiff(
    +            
    208    class Parser(parser.Parser):
    +209        FUNCTIONS = {
    +210            **parser.Parser.FUNCTIONS,  # type: ignore
    +211            "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list,
    +212            "APPROX_PERCENTILE": _approx_percentile,
    +213            "CARDINALITY": exp.ArraySize.from_arg_list,
    +214            "CONTAINS": exp.ArrayContains.from_arg_list,
    +215            "DATE_ADD": lambda args: exp.DateAdd(
     216                this=seq_get(args, 2),
     217                expression=seq_get(args, 1),
     218                unit=seq_get(args, 0),
     219            ),
    -220            "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"),
    -221            "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"),
    -222            "DATE_TRUNC": date_trunc_to_time,
    -223            "FROM_UNIXTIME": _from_unixtime,
    -224            "NOW": exp.CurrentTimestamp.from_arg_list,
    -225            "STRPOS": lambda args: exp.StrPosition(
    -226                this=seq_get(args, 0),
    -227                substr=seq_get(args, 1),
    -228                instance=seq_get(args, 2),
    -229            ),
    -230            "TO_UNIXTIME": exp.TimeToUnix.from_arg_list,
    -231            "APPROX_PERCENTILE": _approx_percentile,
    -232            "FROM_HEX": exp.Unhex.from_arg_list,
    -233            "TO_HEX": exp.Hex.from_arg_list,
    -234            "TO_UTF8": lambda args: exp.Encode(
    -235                this=seq_get(args, 0), charset=exp.Literal.string("utf-8")
    -236            ),
    -237            "FROM_UTF8": lambda args: exp.Decode(
    -238                this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8")
    +220            "DATE_DIFF": lambda args: exp.DateDiff(
    +221                this=seq_get(args, 2),
    +222                expression=seq_get(args, 1),
    +223                unit=seq_get(args, 0),
    +224            ),
    +225            "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"),
    +226            "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"),
    +227            "DATE_TRUNC": date_trunc_to_time,
    +228            "FROM_HEX": exp.Unhex.from_arg_list,
    +229            "FROM_UNIXTIME": _from_unixtime,
    +230            "FROM_UTF8": lambda args: exp.Decode(
    +231                this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8")
    +232            ),
    +233            "NOW": exp.CurrentTimestamp.from_arg_list,
    +234            "SEQUENCE": exp.GenerateSeries.from_arg_list,
    +235            "STRPOS": lambda args: exp.StrPosition(
    +236                this=seq_get(args, 0),
    +237                substr=seq_get(args, 1),
    +238                instance=seq_get(args, 2),
     239            ),
    -240        }
    -241        FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy()
    -242        FUNCTION_PARSERS.pop("TRIM")
    +240            "TO_UNIXTIME": exp.TimeToUnix.from_arg_list,
    +241            "TO_HEX": exp.Hex.from_arg_list,
    +242            "TO_UTF8": lambda args: exp.Encode(
    +243                this=seq_get(args, 0), charset=exp.Literal.string("utf-8")
    +244            ),
    +245        }
    +246        FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy()
    +247        FUNCTION_PARSERS.pop("TRIM")
     
    @@ -753,105 +768,109 @@ Default: "nulls_are_small"
    -
    244    class Generator(generator.Generator):
    -245        INTERVAL_ALLOWS_PLURAL_FORM = False
    -246        JOIN_HINTS = False
    -247        TABLE_HINTS = False
    -248        STRUCT_DELIMITER = ("(", ")")
    -249
    -250        PROPERTIES_LOCATION = {
    -251            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -252            exp.LocationProperty: exp.Properties.Location.UNSUPPORTED,
    -253            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -254        }
    -255
    -256        TYPE_MAPPING = {
    -257            **generator.Generator.TYPE_MAPPING,  # type: ignore
    -258            exp.DataType.Type.INT: "INTEGER",
    -259            exp.DataType.Type.FLOAT: "REAL",
    -260            exp.DataType.Type.BINARY: "VARBINARY",
    -261            exp.DataType.Type.TEXT: "VARCHAR",
    -262            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    -263            exp.DataType.Type.STRUCT: "ROW",
    -264        }
    -265
    -266        TRANSFORMS = {
    -267            **generator.Generator.TRANSFORMS,  # type: ignore
    -268            **transforms.UNALIAS_GROUP,  # type: ignore
    -269            exp.ApproxDistinct: _approx_distinct_sql,
    -270            exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]",
    -271            exp.ArrayConcat: rename_func("CONCAT"),
    -272            exp.ArrayContains: rename_func("CONTAINS"),
    -273            exp.ArraySize: rename_func("CARDINALITY"),
    -274            exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -275            exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -276            exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})",
    -277            exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -278            exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -279            exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    -280            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    -281            exp.DataType: _datatype_sql,
    -282            exp.DateAdd: lambda self, e: self.func(
    -283                "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    -284            ),
    -285            exp.DateDiff: lambda self, e: self.func(
    -286                "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    -287            ),
    -288            exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)",
    -289            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)",
    -290            exp.Decode: _decode_sql,
    -291            exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)",
    -292            exp.Encode: _encode_sql,
    -293            exp.GenerateSeries: _sequence_sql,
    -294            exp.Hex: rename_func("TO_HEX"),
    -295            exp.If: if_sql,
    -296            exp.ILike: no_ilike_sql,
    -297            exp.Initcap: _initcap_sql,
    -298            exp.Lateral: _explode_to_unnest_sql,
    -299            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
    -300            exp.LogicalOr: rename_func("BOOL_OR"),
    -301            exp.LogicalAnd: rename_func("BOOL_AND"),
    -302            exp.Quantile: _quantile_sql,
    -303            exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"),
    -304            exp.SafeDivide: no_safe_divide_sql,
    -305            exp.Schema: _schema_sql,
    -306            exp.Select: transforms.preprocess(
    -307                [transforms.eliminate_qualify, transforms.explode_to_unnest]
    -308            ),
    -309            exp.SortArray: _no_sort_array,
    -310            exp.StrPosition: rename_func("STRPOS"),
    -311            exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)",
    -312            exp.StrToTime: _str_to_time_sql,
    -313            exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))",
    -314            exp.StructExtract: struct_extract_sql,
    -315            exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'",
    -316            exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'",
    -317            exp.TimestampTrunc: timestamptrunc_sql,
    -318            exp.TimeStrToDate: timestrtotime_sql,
    -319            exp.TimeStrToTime: timestrtotime_sql,
    -320            exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))",
    -321            exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})",
    -322            exp.TimeToUnix: rename_func("TO_UNIXTIME"),
    -323            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
    -324            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    -325            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    -326            exp.Unhex: rename_func("FROM_HEX"),
    -327            exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})",
    -328            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    -329            exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)",
    -330            exp.VariancePop: rename_func("VAR_POP"),
    -331        }
    -332
    -333        def interval_sql(self, expression: exp.Interval) -> str:
    -334            unit = self.sql(expression, "unit")
    -335            if expression.this and unit.lower().startswith("week"):
    -336                return f"({expression.this.name} * INTERVAL '7' day)"
    -337            return super().interval_sql(expression)
    -338
    -339        def transaction_sql(self, expression: exp.Transaction) -> str:
    -340            modes = expression.args.get("modes")
    -341            modes = f" {', '.join(modes)}" if modes else ""
    -342            return f"START TRANSACTION{modes}"
    +            
    249    class Generator(generator.Generator):
    +250        INTERVAL_ALLOWS_PLURAL_FORM = False
    +251        JOIN_HINTS = False
    +252        TABLE_HINTS = False
    +253        STRUCT_DELIMITER = ("(", ")")
    +254
    +255        PROPERTIES_LOCATION = {
    +256            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +257            exp.LocationProperty: exp.Properties.Location.UNSUPPORTED,
    +258            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +259        }
    +260
    +261        TYPE_MAPPING = {
    +262            **generator.Generator.TYPE_MAPPING,  # type: ignore
    +263            exp.DataType.Type.INT: "INTEGER",
    +264            exp.DataType.Type.FLOAT: "REAL",
    +265            exp.DataType.Type.BINARY: "VARBINARY",
    +266            exp.DataType.Type.TEXT: "VARCHAR",
    +267            exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP",
    +268            exp.DataType.Type.STRUCT: "ROW",
    +269        }
    +270
    +271        TRANSFORMS = {
    +272            **generator.Generator.TRANSFORMS,  # type: ignore
    +273            exp.ApproxDistinct: _approx_distinct_sql,
    +274            exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]",
    +275            exp.ArrayConcat: rename_func("CONCAT"),
    +276            exp.ArrayContains: rename_func("CONTAINS"),
    +277            exp.ArraySize: rename_func("CARDINALITY"),
    +278            exp.BitwiseAnd: lambda self, e: f"BITWISE_AND({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +279            exp.BitwiseLeftShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_LEFT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +280            exp.BitwiseNot: lambda self, e: f"BITWISE_NOT({self.sql(e, 'this')})",
    +281            exp.BitwiseOr: lambda self, e: f"BITWISE_OR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +282            exp.BitwiseRightShift: lambda self, e: f"BITWISE_ARITHMETIC_SHIFT_RIGHT({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +283            exp.BitwiseXor: lambda self, e: f"BITWISE_XOR({self.sql(e, 'this')}, {self.sql(e, 'expression')})",
    +284            exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP",
    +285            exp.DataType: _datatype_sql,
    +286            exp.DateAdd: lambda self, e: self.func(
    +287                "DATE_ADD", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    +288            ),
    +289            exp.DateDiff: lambda self, e: self.func(
    +290                "DATE_DIFF", exp.Literal.string(e.text("unit") or "day"), e.expression, e.this
    +291            ),
    +292            exp.DateStrToDate: lambda self, e: f"CAST(DATE_PARSE({self.sql(e, 'this')}, {Presto.date_format}) AS DATE)",
    +293            exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Presto.dateint_format}) AS INT)",
    +294            exp.Decode: _decode_sql,
    +295            exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)",
    +296            exp.Encode: _encode_sql,
    +297            exp.GenerateSeries: _sequence_sql,
    +298            exp.Group: transforms.preprocess([transforms.unalias_group]),
    +299            exp.Hex: rename_func("TO_HEX"),
    +300            exp.If: if_sql,
    +301            exp.ILike: no_ilike_sql,
    +302            exp.Initcap: _initcap_sql,
    +303            exp.Lateral: _explode_to_unnest_sql,
    +304            exp.Levenshtein: rename_func("LEVENSHTEIN_DISTANCE"),
    +305            exp.LogicalOr: rename_func("BOOL_OR"),
    +306            exp.LogicalAnd: rename_func("BOOL_AND"),
    +307            exp.Quantile: _quantile_sql,
    +308            exp.ApproxQuantile: rename_func("APPROX_PERCENTILE"),
    +309            exp.SafeDivide: no_safe_divide_sql,
    +310            exp.Schema: _schema_sql,
    +311            exp.Select: transforms.preprocess(
    +312                [
    +313                    transforms.eliminate_qualify,
    +314                    transforms.eliminate_distinct_on,
    +315                    transforms.explode_to_unnest,
    +316                ]
    +317            ),
    +318            exp.SortArray: _no_sort_array,
    +319            exp.StrPosition: rename_func("STRPOS"),
    +320            exp.StrToDate: lambda self, e: f"CAST({_str_to_time_sql(self, e)} AS DATE)",
    +321            exp.StrToTime: _str_to_time_sql,
    +322            exp.StrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {self.format_time(e)}))",
    +323            exp.StructExtract: struct_extract_sql,
    +324            exp.TableFormatProperty: lambda self, e: f"TABLE_FORMAT='{e.name.upper()}'",
    +325            exp.FileFormatProperty: lambda self, e: f"FORMAT='{e.name.upper()}'",
    +326            exp.TimestampTrunc: timestamptrunc_sql,
    +327            exp.TimeStrToDate: timestrtotime_sql,
    +328            exp.TimeStrToTime: timestrtotime_sql,
    +329            exp.TimeStrToUnix: lambda self, e: f"TO_UNIXTIME(DATE_PARSE({self.sql(e, 'this')}, {Presto.time_format}))",
    +330            exp.TimeToStr: lambda self, e: f"DATE_FORMAT({self.sql(e, 'this')}, {self.format_time(e)})",
    +331            exp.TimeToUnix: rename_func("TO_UNIXTIME"),
    +332            exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS VARCHAR), '-', ''), 1, 8) AS INT)",
    +333            exp.TsOrDsAdd: _ts_or_ds_add_sql,
    +334            exp.TsOrDsToDate: _ts_or_ds_to_date_sql,
    +335            exp.Unhex: rename_func("FROM_HEX"),
    +336            exp.UnixToStr: lambda self, e: f"DATE_FORMAT(FROM_UNIXTIME({self.sql(e, 'this')}), {self.format_time(e)})",
    +337            exp.UnixToTime: rename_func("FROM_UNIXTIME"),
    +338            exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)",
    +339            exp.VariancePop: rename_func("VAR_POP"),
    +340        }
    +341
    +342        def interval_sql(self, expression: exp.Interval) -> str:
    +343            unit = self.sql(expression, "unit")
    +344            if expression.this and unit.lower().startswith("week"):
    +345                return f"({expression.this.name} * INTERVAL '7' day)"
    +346            return super().interval_sql(expression)
    +347
    +348        def transaction_sql(self, expression: exp.Transaction) -> str:
    +349            modes = expression.args.get("modes")
    +350            modes = f" {', '.join(modes)}" if modes else ""
    +351            return f"START TRANSACTION{modes}"
     
    @@ -910,11 +929,11 @@ Default: True
    -
    333        def interval_sql(self, expression: exp.Interval) -> str:
    -334            unit = self.sql(expression, "unit")
    -335            if expression.this and unit.lower().startswith("week"):
    -336                return f"({expression.this.name} * INTERVAL '7' day)"
    -337            return super().interval_sql(expression)
    +            
    342        def interval_sql(self, expression: exp.Interval) -> str:
    +343            unit = self.sql(expression, "unit")
    +344            if expression.this and unit.lower().startswith("week"):
    +345                return f"({expression.this.name} * INTERVAL '7' day)"
    +346            return super().interval_sql(expression)
     
    @@ -932,10 +951,10 @@ Default: True
    -
    339        def transaction_sql(self, expression: exp.Transaction) -> str:
    -340            modes = expression.args.get("modes")
    -341            modes = f" {', '.join(modes)}" if modes else ""
    -342            return f"START TRANSACTION{modes}"
    +            
    348        def transaction_sql(self, expression: exp.Transaction) -> str:
    +349            modes = expression.args.get("modes")
    +350            modes = f" {', '.join(modes)}" if modes else ""
    +351            return f"START TRANSACTION{modes}"
     
    @@ -1066,7 +1085,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1075,6 +1094,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/redshift.html b/docs/sqlglot/dialects/redshift.html index 825d63c..ee4f196 100644 --- a/docs/sqlglot/dialects/redshift.html +++ b/docs/sqlglot/dialects/redshift.html @@ -181,18 +181,18 @@
    90 91 TRANSFORMS = { 92 **Postgres.Generator.TRANSFORMS, # type: ignore - 93 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 94 exp.CurrentTimestamp: lambda self, e: "SYSDATE", - 95 exp.DateAdd: lambda self, e: self.func( - 96 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this - 97 ), - 98 exp.DateDiff: lambda self, e: self.func( - 99 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this -100 ), -101 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", -102 exp.DistStyleProperty: lambda self, e: self.naked_property(e), -103 exp.JSONExtract: _json_sql, -104 exp.JSONExtractScalar: _json_sql, + 93 exp.CurrentTimestamp: lambda self, e: "SYSDATE", + 94 exp.DateAdd: lambda self, e: self.func( + 95 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this + 96 ), + 97 exp.DateDiff: lambda self, e: self.func( + 98 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this + 99 ), +100 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", +101 exp.DistStyleProperty: lambda self, e: self.naked_property(e), +102 exp.JSONExtract: _json_sql, +103 exp.JSONExtractScalar: _json_sql, +104 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 105 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", 106 } 107 @@ -347,18 +347,18 @@ 91 92 TRANSFORMS = { 93 **Postgres.Generator.TRANSFORMS, # type: ignore - 94 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 95 exp.CurrentTimestamp: lambda self, e: "SYSDATE", - 96 exp.DateAdd: lambda self, e: self.func( - 97 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this - 98 ), - 99 exp.DateDiff: lambda self, e: self.func( -100 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this -101 ), -102 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", -103 exp.DistStyleProperty: lambda self, e: self.naked_property(e), -104 exp.JSONExtract: _json_sql, -105 exp.JSONExtractScalar: _json_sql, + 94 exp.CurrentTimestamp: lambda self, e: "SYSDATE", + 95 exp.DateAdd: lambda self, e: self.func( + 96 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this + 97 ), + 98 exp.DateDiff: lambda self, e: self.func( + 99 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this +100 ), +101 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", +102 exp.DistStyleProperty: lambda self, e: self.naked_property(e), +103 exp.JSONExtract: _json_sql, +104 exp.JSONExtractScalar: _json_sql, +105 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 106 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", 107 } 108 @@ -605,18 +605,18 @@ Default: "nulls_are_small" 91 92 TRANSFORMS = { 93 **Postgres.Generator.TRANSFORMS, # type: ignore - 94 **transforms.ELIMINATE_DISTINCT_ON, # type: ignore - 95 exp.CurrentTimestamp: lambda self, e: "SYSDATE", - 96 exp.DateAdd: lambda self, e: self.func( - 97 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this - 98 ), - 99 exp.DateDiff: lambda self, e: self.func( -100 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this -101 ), -102 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", -103 exp.DistStyleProperty: lambda self, e: self.naked_property(e), -104 exp.JSONExtract: _json_sql, -105 exp.JSONExtractScalar: _json_sql, + 94 exp.CurrentTimestamp: lambda self, e: "SYSDATE", + 95 exp.DateAdd: lambda self, e: self.func( + 96 "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this + 97 ), + 98 exp.DateDiff: lambda self, e: self.func( + 99 "DATEDIFF", exp.var(e.text("unit") or "day"), e.expression, e.this +100 ), +101 exp.DistKeyProperty: lambda self, e: f"DISTKEY({e.name})", +102 exp.DistStyleProperty: lambda self, e: self.naked_property(e), +103 exp.JSONExtract: _json_sql, +104 exp.JSONExtractScalar: _json_sql, +105 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 106 exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", 107 } 108 @@ -979,7 +979,7 @@ without precision we convert it to VARCHAR(max) and if it does have
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -988,6 +988,7 @@ without precision we convert it to VARCHAR(max) and if it does have
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/snowflake.html b/docs/sqlglot/dialects/snowflake.html index 28bfb8c..3946925 100644 --- a/docs/sqlglot/dialects/snowflake.html +++ b/docs/sqlglot/dialects/snowflake.html @@ -102,7 +102,7 @@
    2 3import typing as t 4 - 5from sqlglot import exp, generator, parser, tokens + 5from sqlglot import exp, generator, parser, tokens, transforms 6from sqlglot.dialects.dialect import ( 7 Dialect, 8 date_trunc_to_time, @@ -405,112 +405,113 @@ 305 exp.Max: max_or_greatest, 306 exp.Min: min_or_least, 307 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -308 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), -309 exp.StrPosition: lambda self, e: self.func( -310 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -311 ), -312 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -313 exp.TimeStrToTime: timestrtotime_sql, -314 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -315 exp.TimeToStr: lambda self, e: self.func( -316 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) -317 ), -318 exp.TimestampTrunc: timestamptrunc_sql, -319 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -320 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -321 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -322 exp.UnixToTime: _unix_to_time_sql, -323 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -324 } -325 -326 TYPE_MAPPING = { -327 **generator.Generator.TYPE_MAPPING, # type: ignore -328 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", -329 } -330 -331 STAR_MAPPING = { -332 "except": "EXCLUDE", -333 "replace": "RENAME", -334 } -335 -336 PROPERTIES_LOCATION = { -337 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -338 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, -339 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -340 } -341 -342 def except_op(self, expression: exp.Except) -> str: -343 if not expression.args.get("distinct", False): -344 self.unsupported("EXCEPT with All is not supported in Snowflake") -345 return super().except_op(expression) -346 -347 def intersect_op(self, expression: exp.Intersect) -> str: -348 if not expression.args.get("distinct", False): -349 self.unsupported("INTERSECT with All is not supported in Snowflake") -350 return super().intersect_op(expression) -351 -352 def values_sql(self, expression: exp.Values) -> str: -353 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -354 -355 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -356 from adding quotes to the column by using the `identify` argument when generating the SQL. -357 """ -358 alias = expression.args.get("alias") -359 if alias and alias.args.get("columns"): -360 expression = expression.transform( -361 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -362 if isinstance(node, exp.Identifier) -363 and isinstance(node.parent, exp.TableAlias) -364 and node.arg_key == "columns" -365 else node, -366 ) -367 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -368 return super().values_sql(expression) -369 -370 def settag_sql(self, expression: exp.SetTag) -> str: -371 action = "UNSET" if expression.args.get("unset") else "SET" -372 return f"{action} TAG {self.expressions(expression)}" -373 -374 def select_sql(self, expression: exp.Select) -> str: -375 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -376 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -377 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -378 generating the SQL. -379 -380 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -381 expression. This might not be true in a case where the same column name can be sourced from another table that can -382 properly quote but should be true in most cases. -383 """ -384 values_identifiers = set( -385 flatten( -386 (v.args.get("alias") or exp.Alias()).args.get("columns", []) -387 for v in expression.find_all(exp.Values) -388 ) -389 ) -390 if values_identifiers: -391 expression = expression.transform( -392 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -393 if isinstance(node, exp.Identifier) and node in values_identifiers -394 else node, -395 ) -396 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -397 return super().select_sql(expression) -398 -399 def describe_sql(self, expression: exp.Describe) -> str: -400 # Default to table if kind is unknown -401 kind_value = expression.args.get("kind") or "TABLE" -402 kind = f" {kind_value}" if kind_value else "" -403 this = f" {self.sql(expression, 'this')}" -404 return f"DESCRIBE{kind}{this}" -405 -406 def generatedasidentitycolumnconstraint_sql( -407 self, expression: exp.GeneratedAsIdentityColumnConstraint -408 ) -> str: -409 start = expression.args.get("start") -410 start = f" START {start}" if start else "" -411 increment = expression.args.get("increment") -412 increment = f" INCREMENT {increment}" if increment else "" -413 return f"AUTOINCREMENT{start}{increment}" +308 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +309 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), +310 exp.StrPosition: lambda self, e: self.func( +311 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +312 ), +313 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +314 exp.TimeStrToTime: timestrtotime_sql, +315 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +316 exp.TimeToStr: lambda self, e: self.func( +317 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) +318 ), +319 exp.TimestampTrunc: timestamptrunc_sql, +320 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +321 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +322 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +323 exp.UnixToTime: _unix_to_time_sql, +324 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +325 } +326 +327 TYPE_MAPPING = { +328 **generator.Generator.TYPE_MAPPING, # type: ignore +329 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +330 } +331 +332 STAR_MAPPING = { +333 "except": "EXCLUDE", +334 "replace": "RENAME", +335 } +336 +337 PROPERTIES_LOCATION = { +338 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +339 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +340 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +341 } +342 +343 def except_op(self, expression: exp.Except) -> str: +344 if not expression.args.get("distinct", False): +345 self.unsupported("EXCEPT with All is not supported in Snowflake") +346 return super().except_op(expression) +347 +348 def intersect_op(self, expression: exp.Intersect) -> str: +349 if not expression.args.get("distinct", False): +350 self.unsupported("INTERSECT with All is not supported in Snowflake") +351 return super().intersect_op(expression) +352 +353 def values_sql(self, expression: exp.Values) -> str: +354 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +355 +356 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +357 from adding quotes to the column by using the `identify` argument when generating the SQL. +358 """ +359 alias = expression.args.get("alias") +360 if alias and alias.args.get("columns"): +361 expression = expression.transform( +362 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +363 if isinstance(node, exp.Identifier) +364 and isinstance(node.parent, exp.TableAlias) +365 and node.arg_key == "columns" +366 else node, +367 ) +368 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +369 return super().values_sql(expression) +370 +371 def settag_sql(self, expression: exp.SetTag) -> str: +372 action = "UNSET" if expression.args.get("unset") else "SET" +373 return f"{action} TAG {self.expressions(expression)}" +374 +375 def select_sql(self, expression: exp.Select) -> str: +376 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +377 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +378 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +379 generating the SQL. +380 +381 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +382 expression. This might not be true in a case where the same column name can be sourced from another table that can +383 properly quote but should be true in most cases. +384 """ +385 values_identifiers = set( +386 flatten( +387 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +388 for v in expression.find_all(exp.Values) +389 ) +390 ) +391 if values_identifiers: +392 expression = expression.transform( +393 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +394 if isinstance(node, exp.Identifier) and node in values_identifiers +395 else node, +396 ) +397 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +398 return super().select_sql(expression) +399 +400 def describe_sql(self, expression: exp.Describe) -> str: +401 # Default to table if kind is unknown +402 kind_value = expression.args.get("kind") or "TABLE" +403 kind = f" {kind_value}" if kind_value else "" +404 this = f" {self.sql(expression, 'this')}" +405 return f"DESCRIBE{kind}{this}" +406 +407 def generatedasidentitycolumnconstraint_sql( +408 self, expression: exp.GeneratedAsIdentityColumnConstraint +409 ) -> str: +410 start = expression.args.get("start") +411 start = f" START {start}" if start else "" +412 increment = expression.args.get("increment") +413 increment = f" INCREMENT {increment}" if increment else "" +414 return f"AUTOINCREMENT{start}{increment}"
    @@ -688,112 +689,113 @@ 306 exp.Max: max_or_greatest, 307 exp.Min: min_or_least, 308 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -309 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), -310 exp.StrPosition: lambda self, e: self.func( -311 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -312 ), -313 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -314 exp.TimeStrToTime: timestrtotime_sql, -315 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -316 exp.TimeToStr: lambda self, e: self.func( -317 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) -318 ), -319 exp.TimestampTrunc: timestamptrunc_sql, -320 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -321 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -322 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -323 exp.UnixToTime: _unix_to_time_sql, -324 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -325 } -326 -327 TYPE_MAPPING = { -328 **generator.Generator.TYPE_MAPPING, # type: ignore -329 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", -330 } -331 -332 STAR_MAPPING = { -333 "except": "EXCLUDE", -334 "replace": "RENAME", -335 } -336 -337 PROPERTIES_LOCATION = { -338 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -339 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, -340 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -341 } -342 -343 def except_op(self, expression: exp.Except) -> str: -344 if not expression.args.get("distinct", False): -345 self.unsupported("EXCEPT with All is not supported in Snowflake") -346 return super().except_op(expression) -347 -348 def intersect_op(self, expression: exp.Intersect) -> str: -349 if not expression.args.get("distinct", False): -350 self.unsupported("INTERSECT with All is not supported in Snowflake") -351 return super().intersect_op(expression) -352 -353 def values_sql(self, expression: exp.Values) -> str: -354 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -355 -356 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -357 from adding quotes to the column by using the `identify` argument when generating the SQL. -358 """ -359 alias = expression.args.get("alias") -360 if alias and alias.args.get("columns"): -361 expression = expression.transform( -362 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -363 if isinstance(node, exp.Identifier) -364 and isinstance(node.parent, exp.TableAlias) -365 and node.arg_key == "columns" -366 else node, -367 ) -368 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -369 return super().values_sql(expression) -370 -371 def settag_sql(self, expression: exp.SetTag) -> str: -372 action = "UNSET" if expression.args.get("unset") else "SET" -373 return f"{action} TAG {self.expressions(expression)}" -374 -375 def select_sql(self, expression: exp.Select) -> str: -376 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -377 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -378 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -379 generating the SQL. -380 -381 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -382 expression. This might not be true in a case where the same column name can be sourced from another table that can -383 properly quote but should be true in most cases. -384 """ -385 values_identifiers = set( -386 flatten( -387 (v.args.get("alias") or exp.Alias()).args.get("columns", []) -388 for v in expression.find_all(exp.Values) -389 ) -390 ) -391 if values_identifiers: -392 expression = expression.transform( -393 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -394 if isinstance(node, exp.Identifier) and node in values_identifiers -395 else node, -396 ) -397 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -398 return super().select_sql(expression) -399 -400 def describe_sql(self, expression: exp.Describe) -> str: -401 # Default to table if kind is unknown -402 kind_value = expression.args.get("kind") or "TABLE" -403 kind = f" {kind_value}" if kind_value else "" -404 this = f" {self.sql(expression, 'this')}" -405 return f"DESCRIBE{kind}{this}" -406 -407 def generatedasidentitycolumnconstraint_sql( -408 self, expression: exp.GeneratedAsIdentityColumnConstraint -409 ) -> str: -410 start = expression.args.get("start") -411 start = f" START {start}" if start else "" -412 increment = expression.args.get("increment") -413 increment = f" INCREMENT {increment}" if increment else "" -414 return f"AUTOINCREMENT{start}{increment}" +309 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +310 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), +311 exp.StrPosition: lambda self, e: self.func( +312 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +313 ), +314 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +315 exp.TimeStrToTime: timestrtotime_sql, +316 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +317 exp.TimeToStr: lambda self, e: self.func( +318 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) +319 ), +320 exp.TimestampTrunc: timestamptrunc_sql, +321 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +322 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +323 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +324 exp.UnixToTime: _unix_to_time_sql, +325 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +326 } +327 +328 TYPE_MAPPING = { +329 **generator.Generator.TYPE_MAPPING, # type: ignore +330 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +331 } +332 +333 STAR_MAPPING = { +334 "except": "EXCLUDE", +335 "replace": "RENAME", +336 } +337 +338 PROPERTIES_LOCATION = { +339 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +340 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +341 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +342 } +343 +344 def except_op(self, expression: exp.Except) -> str: +345 if not expression.args.get("distinct", False): +346 self.unsupported("EXCEPT with All is not supported in Snowflake") +347 return super().except_op(expression) +348 +349 def intersect_op(self, expression: exp.Intersect) -> str: +350 if not expression.args.get("distinct", False): +351 self.unsupported("INTERSECT with All is not supported in Snowflake") +352 return super().intersect_op(expression) +353 +354 def values_sql(self, expression: exp.Values) -> str: +355 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +356 +357 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +358 from adding quotes to the column by using the `identify` argument when generating the SQL. +359 """ +360 alias = expression.args.get("alias") +361 if alias and alias.args.get("columns"): +362 expression = expression.transform( +363 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +364 if isinstance(node, exp.Identifier) +365 and isinstance(node.parent, exp.TableAlias) +366 and node.arg_key == "columns" +367 else node, +368 ) +369 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +370 return super().values_sql(expression) +371 +372 def settag_sql(self, expression: exp.SetTag) -> str: +373 action = "UNSET" if expression.args.get("unset") else "SET" +374 return f"{action} TAG {self.expressions(expression)}" +375 +376 def select_sql(self, expression: exp.Select) -> str: +377 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +378 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +379 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +380 generating the SQL. +381 +382 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +383 expression. This might not be true in a case where the same column name can be sourced from another table that can +384 properly quote but should be true in most cases. +385 """ +386 values_identifiers = set( +387 flatten( +388 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +389 for v in expression.find_all(exp.Values) +390 ) +391 ) +392 if values_identifiers: +393 expression = expression.transform( +394 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +395 if isinstance(node, exp.Identifier) and node in values_identifiers +396 else node, +397 ) +398 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +399 return super().select_sql(expression) +400 +401 def describe_sql(self, expression: exp.Describe) -> str: +402 # Default to table if kind is unknown +403 kind_value = expression.args.get("kind") or "TABLE" +404 kind = f" {kind_value}" if kind_value else "" +405 this = f" {self.sql(expression, 'this')}" +406 return f"DESCRIBE{kind}{this}" +407 +408 def generatedasidentitycolumnconstraint_sql( +409 self, expression: exp.GeneratedAsIdentityColumnConstraint +410 ) -> str: +411 start = expression.args.get("start") +412 start = f" START {start}" if start else "" +413 increment = expression.args.get("increment") +414 increment = f" INCREMENT {increment}" if increment else "" +415 return f"AUTOINCREMENT{start}{increment}" @@ -1038,112 +1040,113 @@ Default: "nulls_are_small" 306 exp.Max: max_or_greatest, 307 exp.Min: min_or_least, 308 exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", -309 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), -310 exp.StrPosition: lambda self, e: self.func( -311 "POSITION", e.args.get("substr"), e.this, e.args.get("position") -312 ), -313 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -314 exp.TimeStrToTime: timestrtotime_sql, -315 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", -316 exp.TimeToStr: lambda self, e: self.func( -317 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) -318 ), -319 exp.TimestampTrunc: timestamptrunc_sql, -320 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -321 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), -322 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), -323 exp.UnixToTime: _unix_to_time_sql, -324 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), -325 } -326 -327 TYPE_MAPPING = { -328 **generator.Generator.TYPE_MAPPING, # type: ignore -329 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", -330 } -331 -332 STAR_MAPPING = { -333 "except": "EXCLUDE", -334 "replace": "RENAME", -335 } -336 -337 PROPERTIES_LOCATION = { -338 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -339 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, -340 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -341 } -342 -343 def except_op(self, expression: exp.Except) -> str: -344 if not expression.args.get("distinct", False): -345 self.unsupported("EXCEPT with All is not supported in Snowflake") -346 return super().except_op(expression) -347 -348 def intersect_op(self, expression: exp.Intersect) -> str: -349 if not expression.args.get("distinct", False): -350 self.unsupported("INTERSECT with All is not supported in Snowflake") -351 return super().intersect_op(expression) -352 -353 def values_sql(self, expression: exp.Values) -> str: -354 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. -355 -356 We also want to make sure that after we find matches where we need to unquote a column that we prevent users -357 from adding quotes to the column by using the `identify` argument when generating the SQL. -358 """ -359 alias = expression.args.get("alias") -360 if alias and alias.args.get("columns"): -361 expression = expression.transform( -362 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -363 if isinstance(node, exp.Identifier) -364 and isinstance(node.parent, exp.TableAlias) -365 and node.arg_key == "columns" -366 else node, -367 ) -368 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) -369 return super().values_sql(expression) -370 -371 def settag_sql(self, expression: exp.SetTag) -> str: -372 action = "UNSET" if expression.args.get("unset") else "SET" -373 return f"{action} TAG {self.expressions(expression)}" -374 -375 def select_sql(self, expression: exp.Select) -> str: -376 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also -377 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need -378 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when -379 generating the SQL. -380 -381 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the -382 expression. This might not be true in a case where the same column name can be sourced from another table that can -383 properly quote but should be true in most cases. -384 """ -385 values_identifiers = set( -386 flatten( -387 (v.args.get("alias") or exp.Alias()).args.get("columns", []) -388 for v in expression.find_all(exp.Values) -389 ) -390 ) -391 if values_identifiers: -392 expression = expression.transform( -393 lambda node: exp.Identifier(**{**node.args, "quoted": False}) -394 if isinstance(node, exp.Identifier) and node in values_identifiers -395 else node, -396 ) -397 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) -398 return super().select_sql(expression) -399 -400 def describe_sql(self, expression: exp.Describe) -> str: -401 # Default to table if kind is unknown -402 kind_value = expression.args.get("kind") or "TABLE" -403 kind = f" {kind_value}" if kind_value else "" -404 this = f" {self.sql(expression, 'this')}" -405 return f"DESCRIBE{kind}{this}" -406 -407 def generatedasidentitycolumnconstraint_sql( -408 self, expression: exp.GeneratedAsIdentityColumnConstraint -409 ) -> str: -410 start = expression.args.get("start") -411 start = f" START {start}" if start else "" -412 increment = expression.args.get("increment") -413 increment = f" INCREMENT {increment}" if increment else "" -414 return f"AUTOINCREMENT{start}{increment}" +309 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +310 exp.StarMap: rename_func("OBJECT_CONSTRUCT"), +311 exp.StrPosition: lambda self, e: self.func( +312 "POSITION", e.args.get("substr"), e.this, e.args.get("position") +313 ), +314 exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +315 exp.TimeStrToTime: timestrtotime_sql, +316 exp.TimeToUnix: lambda self, e: f"EXTRACT(epoch_second FROM {self.sql(e, 'this')})", +317 exp.TimeToStr: lambda self, e: self.func( +318 "TO_CHAR", exp.cast(e.this, "timestamp"), self.format_time(e) +319 ), +320 exp.TimestampTrunc: timestamptrunc_sql, +321 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +322 exp.Trim: lambda self, e: self.func("TRIM", e.this, e.expression), +323 exp.TsOrDsToDate: ts_or_ds_to_date_sql("snowflake"), +324 exp.UnixToTime: _unix_to_time_sql, +325 exp.VarMap: lambda self, e: var_map_sql(self, e, "OBJECT_CONSTRUCT"), +326 } +327 +328 TYPE_MAPPING = { +329 **generator.Generator.TYPE_MAPPING, # type: ignore +330 exp.DataType.Type.TIMESTAMP: "TIMESTAMPNTZ", +331 } +332 +333 STAR_MAPPING = { +334 "except": "EXCLUDE", +335 "replace": "RENAME", +336 } +337 +338 PROPERTIES_LOCATION = { +339 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +340 exp.SetProperty: exp.Properties.Location.UNSUPPORTED, +341 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +342 } +343 +344 def except_op(self, expression: exp.Except) -> str: +345 if not expression.args.get("distinct", False): +346 self.unsupported("EXCEPT with All is not supported in Snowflake") +347 return super().except_op(expression) +348 +349 def intersect_op(self, expression: exp.Intersect) -> str: +350 if not expression.args.get("distinct", False): +351 self.unsupported("INTERSECT with All is not supported in Snowflake") +352 return super().intersect_op(expression) +353 +354 def values_sql(self, expression: exp.Values) -> str: +355 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted. +356 +357 We also want to make sure that after we find matches where we need to unquote a column that we prevent users +358 from adding quotes to the column by using the `identify` argument when generating the SQL. +359 """ +360 alias = expression.args.get("alias") +361 if alias and alias.args.get("columns"): +362 expression = expression.transform( +363 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +364 if isinstance(node, exp.Identifier) +365 and isinstance(node.parent, exp.TableAlias) +366 and node.arg_key == "columns" +367 else node, +368 ) +369 return self.no_identify(lambda: super(self.__class__, self).values_sql(expression)) +370 return super().values_sql(expression) +371 +372 def settag_sql(self, expression: exp.SetTag) -> str: +373 action = "UNSET" if expression.args.get("unset") else "SET" +374 return f"{action} TAG {self.expressions(expression)}" +375 +376 def select_sql(self, expression: exp.Select) -> str: +377 """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also +378 that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need +379 to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when +380 generating the SQL. +381 +382 Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the +383 expression. This might not be true in a case where the same column name can be sourced from another table that can +384 properly quote but should be true in most cases. +385 """ +386 values_identifiers = set( +387 flatten( +388 (v.args.get("alias") or exp.Alias()).args.get("columns", []) +389 for v in expression.find_all(exp.Values) +390 ) +391 ) +392 if values_identifiers: +393 expression = expression.transform( +394 lambda node: exp.Identifier(**{**node.args, "quoted": False}) +395 if isinstance(node, exp.Identifier) and node in values_identifiers +396 else node, +397 ) +398 return self.no_identify(lambda: super(self.__class__, self).select_sql(expression)) +399 return super().select_sql(expression) +400 +401 def describe_sql(self, expression: exp.Describe) -> str: +402 # Default to table if kind is unknown +403 kind_value = expression.args.get("kind") or "TABLE" +404 kind = f" {kind_value}" if kind_value else "" +405 this = f" {self.sql(expression, 'this')}" +406 return f"DESCRIBE{kind}{this}" +407 +408 def generatedasidentitycolumnconstraint_sql( +409 self, expression: exp.GeneratedAsIdentityColumnConstraint +410 ) -> str: +411 start = expression.args.get("start") +412 start = f" START {start}" if start else "" +413 increment = expression.args.get("increment") +414 increment = f" INCREMENT {increment}" if increment else "" +415 return f"AUTOINCREMENT{start}{increment}" @@ -1202,10 +1205,10 @@ Default: True -
    343        def except_op(self, expression: exp.Except) -> str:
    -344            if not expression.args.get("distinct", False):
    -345                self.unsupported("EXCEPT with All is not supported in Snowflake")
    -346            return super().except_op(expression)
    +            
    344        def except_op(self, expression: exp.Except) -> str:
    +345            if not expression.args.get("distinct", False):
    +346                self.unsupported("EXCEPT with All is not supported in Snowflake")
    +347            return super().except_op(expression)
     
    @@ -1223,10 +1226,10 @@ Default: True
    -
    348        def intersect_op(self, expression: exp.Intersect) -> str:
    -349            if not expression.args.get("distinct", False):
    -350                self.unsupported("INTERSECT with All is not supported in Snowflake")
    -351            return super().intersect_op(expression)
    +            
    349        def intersect_op(self, expression: exp.Intersect) -> str:
    +350            if not expression.args.get("distinct", False):
    +351                self.unsupported("INTERSECT with All is not supported in Snowflake")
    +352            return super().intersect_op(expression)
     
    @@ -1244,23 +1247,23 @@ Default: True
    -
    353        def values_sql(self, expression: exp.Values) -> str:
    -354            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    -355
    -356            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    -357            from adding quotes to the column by using the `identify` argument when generating the SQL.
    -358            """
    -359            alias = expression.args.get("alias")
    -360            if alias and alias.args.get("columns"):
    -361                expression = expression.transform(
    -362                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -363                    if isinstance(node, exp.Identifier)
    -364                    and isinstance(node.parent, exp.TableAlias)
    -365                    and node.arg_key == "columns"
    -366                    else node,
    -367                )
    -368                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    -369            return super().values_sql(expression)
    +            
    354        def values_sql(self, expression: exp.Values) -> str:
    +355            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted.
    +356
    +357            We also want to make sure that after we find matches where we need to unquote a column that we prevent users
    +358            from adding quotes to the column by using the `identify` argument when generating the SQL.
    +359            """
    +360            alias = expression.args.get("alias")
    +361            if alias and alias.args.get("columns"):
    +362                expression = expression.transform(
    +363                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +364                    if isinstance(node, exp.Identifier)
    +365                    and isinstance(node.parent, exp.TableAlias)
    +366                    and node.arg_key == "columns"
    +367                    else node,
    +368                )
    +369                return self.no_identify(lambda: super(self.__class__, self).values_sql(expression))
    +370            return super().values_sql(expression)
     
    @@ -1283,9 +1286,9 @@ from adding quotes to the column by using the identify argument whe
    -
    371        def settag_sql(self, expression: exp.SetTag) -> str:
    -372            action = "UNSET" if expression.args.get("unset") else "SET"
    -373            return f"{action} TAG {self.expressions(expression)}"
    +            
    372        def settag_sql(self, expression: exp.SetTag) -> str:
    +373            action = "UNSET" if expression.args.get("unset") else "SET"
    +374            return f"{action} TAG {self.expressions(expression)}"
     
    @@ -1303,30 +1306,30 @@ from adding quotes to the column by using the identify argument whe
    -
    375        def select_sql(self, expression: exp.Select) -> str:
    -376            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    -377            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    -378            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    -379            generating the SQL.
    -380
    -381            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    -382            expression. This might not be true in a case where the same column name can be sourced from another table that can
    -383            properly quote but should be true in most cases.
    -384            """
    -385            values_identifiers = set(
    -386                flatten(
    -387                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    -388                    for v in expression.find_all(exp.Values)
    -389                )
    -390            )
    -391            if values_identifiers:
    -392                expression = expression.transform(
    -393                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    -394                    if isinstance(node, exp.Identifier) and node in values_identifiers
    -395                    else node,
    -396                )
    -397                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    -398            return super().select_sql(expression)
    +            
    376        def select_sql(self, expression: exp.Select) -> str:
    +377            """Due to a bug in Snowflake we want to make sure that all columns in a VALUES table alias are unquoted and also
    +378            that all columns in a SELECT are unquoted. We also want to make sure that after we find matches where we need
    +379            to unquote a column that we prevent users from adding quotes to the column by using the `identify` argument when
    +380            generating the SQL.
    +381
    +382            Note: We make an assumption that any columns referenced in a VALUES expression should be unquoted throughout the
    +383            expression. This might not be true in a case where the same column name can be sourced from another table that can
    +384            properly quote but should be true in most cases.
    +385            """
    +386            values_identifiers = set(
    +387                flatten(
    +388                    (v.args.get("alias") or exp.Alias()).args.get("columns", [])
    +389                    for v in expression.find_all(exp.Values)
    +390                )
    +391            )
    +392            if values_identifiers:
    +393                expression = expression.transform(
    +394                    lambda node: exp.Identifier(**{**node.args, "quoted": False})
    +395                    if isinstance(node, exp.Identifier) and node in values_identifiers
    +396                    else node,
    +397                )
    +398                return self.no_identify(lambda: super(self.__class__, self).select_sql(expression))
    +399            return super().select_sql(expression)
     
    @@ -1353,12 +1356,12 @@ properly quote but should be true in most cases.

    -
    400        def describe_sql(self, expression: exp.Describe) -> str:
    -401            # Default to table if kind is unknown
    -402            kind_value = expression.args.get("kind") or "TABLE"
    -403            kind = f" {kind_value}" if kind_value else ""
    -404            this = f" {self.sql(expression, 'this')}"
    -405            return f"DESCRIBE{kind}{this}"
    +            
    401        def describe_sql(self, expression: exp.Describe) -> str:
    +402            # Default to table if kind is unknown
    +403            kind_value = expression.args.get("kind") or "TABLE"
    +404            kind = f" {kind_value}" if kind_value else ""
    +405            this = f" {self.sql(expression, 'this')}"
    +406            return f"DESCRIBE{kind}{this}"
     
    @@ -1376,14 +1379,14 @@ properly quote but should be true in most cases.

    -
    407        def generatedasidentitycolumnconstraint_sql(
    -408            self, expression: exp.GeneratedAsIdentityColumnConstraint
    -409        ) -> str:
    -410            start = expression.args.get("start")
    -411            start = f" START {start}" if start else ""
    -412            increment = expression.args.get("increment")
    -413            increment = f" INCREMENT {increment}" if increment else ""
    -414            return f"AUTOINCREMENT{start}{increment}"
    +            
    408        def generatedasidentitycolumnconstraint_sql(
    +409            self, expression: exp.GeneratedAsIdentityColumnConstraint
    +410        ) -> str:
    +411            start = expression.args.get("start")
    +412            start = f" START {start}" if start else ""
    +413            increment = expression.args.get("increment")
    +414            increment = f" INCREMENT {increment}" if increment else ""
    +415            return f"AUTOINCREMENT{start}{increment}"
     
    @@ -1508,7 +1511,7 @@ properly quote but should be true in most cases.

    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1517,6 +1520,7 @@ properly quote but should be true in most cases.

    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/spark.html b/docs/sqlglot/dialects/spark.html index bc53a56..d29015b 100644 --- a/docs/sqlglot/dialects/spark.html +++ b/docs/sqlglot/dialects/spark.html @@ -43,17 +43,11 @@ Spark.Generator -
  • - Spark.Tokenizer -
      -
    - -
  • @@ -80,229 +74,61 @@ -
      1from __future__ import annotations
    -  2
    -  3import typing as t
    -  4
    -  5from sqlglot import exp, parser
    -  6from sqlglot.dialects.dialect import create_with_partitions_sql, rename_func, trim_sql
    -  7from sqlglot.dialects.hive import Hive
    -  8from sqlglot.helper import seq_get
    -  9
    - 10
    - 11def _create_sql(self: Hive.Generator, e: exp.Create) -> str:
    - 12    kind = e.args["kind"]
    - 13    properties = e.args.get("properties")
    - 14
    - 15    if kind.upper() == "TABLE" and any(
    - 16        isinstance(prop, exp.TemporaryProperty)
    - 17        for prop in (properties.expressions if properties else [])
    - 18    ):
    - 19        return f"CREATE TEMPORARY VIEW {self.sql(e, 'this')} AS {self.sql(e, 'expression')}"
    - 20    return create_with_partitions_sql(self, e)
    - 21
    - 22
    - 23def _map_sql(self: Hive.Generator, expression: exp.Map) -> str:
    - 24    keys = self.sql(expression.args["keys"])
    - 25    values = self.sql(expression.args["values"])
    - 26    return f"MAP_FROM_ARRAYS({keys}, {values})"
    - 27
    - 28
    - 29def _str_to_date(self: Hive.Generator, expression: exp.StrToDate) -> str:
    - 30    this = self.sql(expression, "this")
    - 31    time_format = self.format_time(expression)
    - 32    if time_format == Hive.date_format:
    - 33        return f"TO_DATE({this})"
    - 34    return f"TO_DATE({this}, {time_format})"
    - 35
    - 36
    - 37def _unix_to_time_sql(self: Hive.Generator, expression: exp.UnixToTime) -> str:
    - 38    scale = expression.args.get("scale")
    - 39    timestamp = self.sql(expression, "this")
    - 40    if scale is None:
    - 41        return f"FROM_UNIXTIME({timestamp})"
    - 42    if scale == exp.UnixToTime.SECONDS:
    - 43        return f"TIMESTAMP_SECONDS({timestamp})"
    - 44    if scale == exp.UnixToTime.MILLIS:
    - 45        return f"TIMESTAMP_MILLIS({timestamp})"
    - 46    if scale == exp.UnixToTime.MICROS:
    - 47        return f"TIMESTAMP_MICROS({timestamp})"
    - 48
    - 49    raise ValueError("Improper scale for timestamp")
    - 50
    - 51
    - 52class Spark(Hive):
    - 53    class Parser(Hive.Parser):
    - 54        FUNCTIONS = {
    - 55            **Hive.Parser.FUNCTIONS,  # type: ignore
    - 56            "MAP_FROM_ARRAYS": exp.Map.from_arg_list,
    - 57            "TO_UNIX_TIMESTAMP": exp.StrToUnix.from_arg_list,
    - 58            "LEFT": lambda args: exp.Substring(
    - 59                this=seq_get(args, 0),
    - 60                start=exp.Literal.number(1),
    - 61                length=seq_get(args, 1),
    - 62            ),
    - 63            "SHIFTLEFT": lambda args: exp.BitwiseLeftShift(
    - 64                this=seq_get(args, 0),
    - 65                expression=seq_get(args, 1),
    - 66            ),
    - 67            "SHIFTRIGHT": lambda args: exp.BitwiseRightShift(
    - 68                this=seq_get(args, 0),
    - 69                expression=seq_get(args, 1),
    - 70            ),
    - 71            "RIGHT": lambda args: exp.Substring(
    - 72                this=seq_get(args, 0),
    - 73                start=exp.Sub(
    - 74                    this=exp.Length(this=seq_get(args, 0)),
    - 75                    expression=exp.Add(this=seq_get(args, 1), expression=exp.Literal.number(1)),
    - 76                ),
    - 77                length=seq_get(args, 1),
    - 78            ),
    - 79            "APPROX_PERCENTILE": exp.ApproxQuantile.from_arg_list,
    - 80            "BOOLEAN": lambda args: exp.Cast(
    - 81                this=seq_get(args, 0), to=exp.DataType.build("boolean")
    - 82            ),
    - 83            "IIF": exp.If.from_arg_list,
    - 84            "INT": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("int")),
    - 85            "AGGREGATE": exp.Reduce.from_arg_list,
    - 86            "DAYOFWEEK": lambda args: exp.DayOfWeek(
    - 87                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 88            ),
    - 89            "DAYOFMONTH": lambda args: exp.DayOfMonth(
    - 90                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 91            ),
    - 92            "DAYOFYEAR": lambda args: exp.DayOfYear(
    - 93                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 94            ),
    - 95            "WEEKOFYEAR": lambda args: exp.WeekOfYear(
    - 96                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 97            ),
    - 98            "DATE": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("date")),
    - 99            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -100                this=seq_get(args, 1),
    -101                unit=exp.var(seq_get(args, 0)),
    -102            ),
    -103            "STRING": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("string")),
    -104            "TRUNC": lambda args: exp.DateTrunc(unit=seq_get(args, 1), this=seq_get(args, 0)),
    -105            "TIMESTAMP": lambda args: exp.Cast(
    -106                this=seq_get(args, 0), to=exp.DataType.build("timestamp")
    -107            ),
    -108        }
    -109
    -110        FUNCTION_PARSERS = {
    -111            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -112            "BROADCAST": lambda self: self._parse_join_hint("BROADCAST"),
    -113            "BROADCASTJOIN": lambda self: self._parse_join_hint("BROADCASTJOIN"),
    -114            "MAPJOIN": lambda self: self._parse_join_hint("MAPJOIN"),
    -115            "MERGE": lambda self: self._parse_join_hint("MERGE"),
    -116            "SHUFFLEMERGE": lambda self: self._parse_join_hint("SHUFFLEMERGE"),
    -117            "MERGEJOIN": lambda self: self._parse_join_hint("MERGEJOIN"),
    -118            "SHUFFLE_HASH": lambda self: self._parse_join_hint("SHUFFLE_HASH"),
    -119            "SHUFFLE_REPLICATE_NL": lambda self: self._parse_join_hint("SHUFFLE_REPLICATE_NL"),
    -120        }
    -121
    -122        def _parse_add_column(self) -> t.Optional[exp.Expression]:
    -123            return self._match_text_seq("ADD", "COLUMNS") and self._parse_schema()
    -124
    -125        def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    -126            return self._match_text_seq("DROP", "COLUMNS") and self.expression(
    -127                exp.Drop,
    -128                this=self._parse_schema(),
    -129                kind="COLUMNS",
    -130            )
    -131
    -132        def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]:
    -133            # Spark doesn't add a suffix to the pivot columns when there's a single aggregation
    -134            if len(pivot_columns) == 1:
    -135                return [""]
    -136
    -137            names = []
    -138            for agg in pivot_columns:
    -139                if isinstance(agg, exp.Alias):
    -140                    names.append(agg.alias)
    -141                else:
    -142                    """
    -143                    This case corresponds to aggregations without aliases being used as suffixes
    -144                    (e.g. col_avg(foo)). We need to unquote identifiers because they're going to
    -145                    be quoted in the base parser's `_parse_pivot` method, due to `to_identifier`.
    -146                    Otherwise, we'd end up with `col_avg(`foo`)` (notice the double quotes).
    -147
    -148                    Moreover, function names are lowercased in order to mimic Spark's naming scheme.
    -149                    """
    -150                    agg_all_unquoted = agg.transform(
    -151                        lambda node: exp.Identifier(this=node.name, quoted=False)
    -152                        if isinstance(node, exp.Identifier)
    -153                        else node
    -154                    )
    -155                    names.append(agg_all_unquoted.sql(dialect="spark", normalize_functions="lower"))
    -156
    -157            return names
    -158
    -159    class Generator(Hive.Generator):
    -160        TYPE_MAPPING = {
    -161            **Hive.Generator.TYPE_MAPPING,  # type: ignore
    -162            exp.DataType.Type.TINYINT: "BYTE",
    -163            exp.DataType.Type.SMALLINT: "SHORT",
    -164            exp.DataType.Type.BIGINT: "LONG",
    -165        }
    -166
    -167        PROPERTIES_LOCATION = {
    -168            **Hive.Generator.PROPERTIES_LOCATION,  # type: ignore
    -169            exp.EngineProperty: exp.Properties.Location.UNSUPPORTED,
    -170            exp.AutoIncrementProperty: exp.Properties.Location.UNSUPPORTED,
    -171            exp.CharacterSetProperty: exp.Properties.Location.UNSUPPORTED,
    -172            exp.CollateProperty: exp.Properties.Location.UNSUPPORTED,
    -173        }
    -174
    -175        TRANSFORMS = {
    -176            **Hive.Generator.TRANSFORMS,  # type: ignore
    -177            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    -178            exp.FileFormatProperty: lambda self, e: f"USING {e.name.upper()}",
    -179            exp.ArraySum: lambda self, e: f"AGGREGATE({self.sql(e, 'this')}, 0, (acc, x) -> acc + x, acc -> acc)",
    -180            exp.BitwiseLeftShift: rename_func("SHIFTLEFT"),
    -181            exp.BitwiseRightShift: rename_func("SHIFTRIGHT"),
    -182            exp.DateTrunc: lambda self, e: self.func("TRUNC", e.this, e.args.get("unit")),
    -183            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    -184            exp.StrToDate: _str_to_date,
    -185            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -186            exp.UnixToTime: _unix_to_time_sql,
    -187            exp.Create: _create_sql,
    -188            exp.Map: _map_sql,
    -189            exp.Reduce: rename_func("AGGREGATE"),
    -190            exp.StructKwarg: lambda self, e: f"{self.sql(e, 'this')}: {self.sql(e, 'expression')}",
    -191            exp.TimestampTrunc: lambda self, e: self.func(
    -192                "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this
    -193            ),
    -194            exp.Trim: trim_sql,
    -195            exp.VariancePop: rename_func("VAR_POP"),
    -196            exp.DateFromParts: rename_func("MAKE_DATE"),
    -197            exp.LogicalOr: rename_func("BOOL_OR"),
    -198            exp.LogicalAnd: rename_func("BOOL_AND"),
    -199            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -200            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -201            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -202            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -203            exp.AtTimeZone: lambda self, e: f"FROM_UTC_TIMESTAMP({self.sql(e, 'this')}, {self.sql(e, 'zone')})",
    -204        }
    -205        TRANSFORMS.pop(exp.ArraySort)
    -206        TRANSFORMS.pop(exp.ILike)
    -207
    -208        WRAP_DERIVED_VALUES = False
    -209        CREATE_FUNCTION_RETURN_AS = False
    -210
    -211        def cast_sql(self, expression: exp.Cast) -> str:
    -212            if isinstance(expression.this, exp.Cast) and expression.this.is_type(
    -213                exp.DataType.Type.JSON
    -214            ):
    -215                schema = f"'{self.sql(expression, 'to')}'"
    -216                return self.func("FROM_JSON", expression.this.this, schema)
    -217            if expression.to.is_type(exp.DataType.Type.JSON):
    -218                return self.func("TO_JSON", expression.this)
    -219
    -220            return super(Spark.Generator, self).cast_sql(expression)
    -221
    -222    class Tokenizer(Hive.Tokenizer):
    -223        HEX_STRINGS = [("X'", "'")]
    +                        
     1from __future__ import annotations
    + 2
    + 3import typing as t
    + 4
    + 5from sqlglot import exp
    + 6from sqlglot.dialects.spark2 import Spark2
    + 7from sqlglot.helper import seq_get
    + 8
    + 9
    +10def _parse_datediff(args: t.Sequence) -> exp.Expression:
    +11    """
    +12    Although Spark docs don't mention the "unit" argument, Spark3 added support for
    +13    it at some point. Databricks also supports this variation (see below).
    +14
    +15    For example, in spark-sql (v3.3.1):
    +16    - SELECT DATEDIFF('2020-01-01', '2020-01-05') results in -4
    +17    - SELECT DATEDIFF(day, '2020-01-01', '2020-01-05') results in 4
    +18
    +19    See also:
    +20    - https://docs.databricks.com/sql/language-manual/functions/datediff3.html
    +21    - https://docs.databricks.com/sql/language-manual/functions/datediff.html
    +22    """
    +23    unit = None
    +24    this = seq_get(args, 0)
    +25    expression = seq_get(args, 1)
    +26
    +27    if len(args) == 3:
    +28        unit = this
    +29        this = args[2]
    +30
    +31    return exp.DateDiff(
    +32        this=exp.TsOrDsToDate(this=this), expression=exp.TsOrDsToDate(this=expression), unit=unit
    +33    )
    +34
    +35
    +36class Spark(Spark2):
    +37    class Parser(Spark2.Parser):
    +38        FUNCTIONS = {
    +39            **Spark2.Parser.FUNCTIONS,  # type: ignore
    +40            "DATEDIFF": _parse_datediff,
    +41        }
    +42
    +43    class Generator(Spark2.Generator):
    +44        TRANSFORMS = Spark2.Generator.TRANSFORMS.copy()
    +45        TRANSFORMS.pop(exp.DateDiff)
    +46
    +47        def datediff_sql(self, expression: exp.DateDiff) -> str:
    +48            unit = self.sql(expression, "unit")
    +49            end = self.sql(expression, "this")
    +50            start = self.sql(expression, "expression")
    +51
    +52            if unit:
    +53                return self.func("DATEDIFF", unit, start, end)
    +54
    +55            return self.func("DATEDIFF", end, start)
     
    @@ -312,184 +138,32 @@
    class - Spark(sqlglot.dialects.hive.Hive): + Spark(sqlglot.dialects.spark2.Spark2):
    -
     53class Spark(Hive):
    - 54    class Parser(Hive.Parser):
    - 55        FUNCTIONS = {
    - 56            **Hive.Parser.FUNCTIONS,  # type: ignore
    - 57            "MAP_FROM_ARRAYS": exp.Map.from_arg_list,
    - 58            "TO_UNIX_TIMESTAMP": exp.StrToUnix.from_arg_list,
    - 59            "LEFT": lambda args: exp.Substring(
    - 60                this=seq_get(args, 0),
    - 61                start=exp.Literal.number(1),
    - 62                length=seq_get(args, 1),
    - 63            ),
    - 64            "SHIFTLEFT": lambda args: exp.BitwiseLeftShift(
    - 65                this=seq_get(args, 0),
    - 66                expression=seq_get(args, 1),
    - 67            ),
    - 68            "SHIFTRIGHT": lambda args: exp.BitwiseRightShift(
    - 69                this=seq_get(args, 0),
    - 70                expression=seq_get(args, 1),
    - 71            ),
    - 72            "RIGHT": lambda args: exp.Substring(
    - 73                this=seq_get(args, 0),
    - 74                start=exp.Sub(
    - 75                    this=exp.Length(this=seq_get(args, 0)),
    - 76                    expression=exp.Add(this=seq_get(args, 1), expression=exp.Literal.number(1)),
    - 77                ),
    - 78                length=seq_get(args, 1),
    - 79            ),
    - 80            "APPROX_PERCENTILE": exp.ApproxQuantile.from_arg_list,
    - 81            "BOOLEAN": lambda args: exp.Cast(
    - 82                this=seq_get(args, 0), to=exp.DataType.build("boolean")
    - 83            ),
    - 84            "IIF": exp.If.from_arg_list,
    - 85            "INT": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("int")),
    - 86            "AGGREGATE": exp.Reduce.from_arg_list,
    - 87            "DAYOFWEEK": lambda args: exp.DayOfWeek(
    - 88                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 89            ),
    - 90            "DAYOFMONTH": lambda args: exp.DayOfMonth(
    - 91                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 92            ),
    - 93            "DAYOFYEAR": lambda args: exp.DayOfYear(
    - 94                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 95            ),
    - 96            "WEEKOFYEAR": lambda args: exp.WeekOfYear(
    - 97                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 98            ),
    - 99            "DATE": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("date")),
    -100            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -101                this=seq_get(args, 1),
    -102                unit=exp.var(seq_get(args, 0)),
    -103            ),
    -104            "STRING": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("string")),
    -105            "TRUNC": lambda args: exp.DateTrunc(unit=seq_get(args, 1), this=seq_get(args, 0)),
    -106            "TIMESTAMP": lambda args: exp.Cast(
    -107                this=seq_get(args, 0), to=exp.DataType.build("timestamp")
    -108            ),
    -109        }
    -110
    -111        FUNCTION_PARSERS = {
    -112            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -113            "BROADCAST": lambda self: self._parse_join_hint("BROADCAST"),
    -114            "BROADCASTJOIN": lambda self: self._parse_join_hint("BROADCASTJOIN"),
    -115            "MAPJOIN": lambda self: self._parse_join_hint("MAPJOIN"),
    -116            "MERGE": lambda self: self._parse_join_hint("MERGE"),
    -117            "SHUFFLEMERGE": lambda self: self._parse_join_hint("SHUFFLEMERGE"),
    -118            "MERGEJOIN": lambda self: self._parse_join_hint("MERGEJOIN"),
    -119            "SHUFFLE_HASH": lambda self: self._parse_join_hint("SHUFFLE_HASH"),
    -120            "SHUFFLE_REPLICATE_NL": lambda self: self._parse_join_hint("SHUFFLE_REPLICATE_NL"),
    -121        }
    -122
    -123        def _parse_add_column(self) -> t.Optional[exp.Expression]:
    -124            return self._match_text_seq("ADD", "COLUMNS") and self._parse_schema()
    -125
    -126        def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    -127            return self._match_text_seq("DROP", "COLUMNS") and self.expression(
    -128                exp.Drop,
    -129                this=self._parse_schema(),
    -130                kind="COLUMNS",
    -131            )
    -132
    -133        def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]:
    -134            # Spark doesn't add a suffix to the pivot columns when there's a single aggregation
    -135            if len(pivot_columns) == 1:
    -136                return [""]
    -137
    -138            names = []
    -139            for agg in pivot_columns:
    -140                if isinstance(agg, exp.Alias):
    -141                    names.append(agg.alias)
    -142                else:
    -143                    """
    -144                    This case corresponds to aggregations without aliases being used as suffixes
    -145                    (e.g. col_avg(foo)). We need to unquote identifiers because they're going to
    -146                    be quoted in the base parser's `_parse_pivot` method, due to `to_identifier`.
    -147                    Otherwise, we'd end up with `col_avg(`foo`)` (notice the double quotes).
    -148
    -149                    Moreover, function names are lowercased in order to mimic Spark's naming scheme.
    -150                    """
    -151                    agg_all_unquoted = agg.transform(
    -152                        lambda node: exp.Identifier(this=node.name, quoted=False)
    -153                        if isinstance(node, exp.Identifier)
    -154                        else node
    -155                    )
    -156                    names.append(agg_all_unquoted.sql(dialect="spark", normalize_functions="lower"))
    -157
    -158            return names
    -159
    -160    class Generator(Hive.Generator):
    -161        TYPE_MAPPING = {
    -162            **Hive.Generator.TYPE_MAPPING,  # type: ignore
    -163            exp.DataType.Type.TINYINT: "BYTE",
    -164            exp.DataType.Type.SMALLINT: "SHORT",
    -165            exp.DataType.Type.BIGINT: "LONG",
    -166        }
    -167
    -168        PROPERTIES_LOCATION = {
    -169            **Hive.Generator.PROPERTIES_LOCATION,  # type: ignore
    -170            exp.EngineProperty: exp.Properties.Location.UNSUPPORTED,
    -171            exp.AutoIncrementProperty: exp.Properties.Location.UNSUPPORTED,
    -172            exp.CharacterSetProperty: exp.Properties.Location.UNSUPPORTED,
    -173            exp.CollateProperty: exp.Properties.Location.UNSUPPORTED,
    -174        }
    -175
    -176        TRANSFORMS = {
    -177            **Hive.Generator.TRANSFORMS,  # type: ignore
    -178            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    -179            exp.FileFormatProperty: lambda self, e: f"USING {e.name.upper()}",
    -180            exp.ArraySum: lambda self, e: f"AGGREGATE({self.sql(e, 'this')}, 0, (acc, x) -> acc + x, acc -> acc)",
    -181            exp.BitwiseLeftShift: rename_func("SHIFTLEFT"),
    -182            exp.BitwiseRightShift: rename_func("SHIFTRIGHT"),
    -183            exp.DateTrunc: lambda self, e: self.func("TRUNC", e.this, e.args.get("unit")),
    -184            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    -185            exp.StrToDate: _str_to_date,
    -186            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -187            exp.UnixToTime: _unix_to_time_sql,
    -188            exp.Create: _create_sql,
    -189            exp.Map: _map_sql,
    -190            exp.Reduce: rename_func("AGGREGATE"),
    -191            exp.StructKwarg: lambda self, e: f"{self.sql(e, 'this')}: {self.sql(e, 'expression')}",
    -192            exp.TimestampTrunc: lambda self, e: self.func(
    -193                "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this
    -194            ),
    -195            exp.Trim: trim_sql,
    -196            exp.VariancePop: rename_func("VAR_POP"),
    -197            exp.DateFromParts: rename_func("MAKE_DATE"),
    -198            exp.LogicalOr: rename_func("BOOL_OR"),
    -199            exp.LogicalAnd: rename_func("BOOL_AND"),
    -200            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -201            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -202            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -203            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -204            exp.AtTimeZone: lambda self, e: f"FROM_UTC_TIMESTAMP({self.sql(e, 'this')}, {self.sql(e, 'zone')})",
    -205        }
    -206        TRANSFORMS.pop(exp.ArraySort)
    -207        TRANSFORMS.pop(exp.ILike)
    -208
    -209        WRAP_DERIVED_VALUES = False
    -210        CREATE_FUNCTION_RETURN_AS = False
    -211
    -212        def cast_sql(self, expression: exp.Cast) -> str:
    -213            if isinstance(expression.this, exp.Cast) and expression.this.is_type(
    -214                exp.DataType.Type.JSON
    -215            ):
    -216                schema = f"'{self.sql(expression, 'to')}'"
    -217                return self.func("FROM_JSON", expression.this.this, schema)
    -218            if expression.to.is_type(exp.DataType.Type.JSON):
    -219                return self.func("TO_JSON", expression.this)
    -220
    -221            return super(Spark.Generator, self).cast_sql(expression)
    -222
    -223    class Tokenizer(Hive.Tokenizer):
    -224        HEX_STRINGS = [("X'", "'")]
    +            
    37class Spark(Spark2):
    +38    class Parser(Spark2.Parser):
    +39        FUNCTIONS = {
    +40            **Spark2.Parser.FUNCTIONS,  # type: ignore
    +41            "DATEDIFF": _parse_datediff,
    +42        }
    +43
    +44    class Generator(Spark2.Generator):
    +45        TRANSFORMS = Spark2.Generator.TRANSFORMS.copy()
    +46        TRANSFORMS.pop(exp.DateDiff)
    +47
    +48        def datediff_sql(self, expression: exp.DateDiff) -> str:
    +49            unit = self.sql(expression, "unit")
    +50            end = self.sql(expression, "this")
    +51            start = self.sql(expression, "expression")
    +52
    +53            if unit:
    +54                return self.func("DATEDIFF", unit, start, end)
    +55
    +56            return self.func("DATEDIFF", end, start)
     
    @@ -498,7 +172,11 @@
    Inherited Members
    -
    sqlglot.dialects.dialect.Dialect
    + +
    sqlglot.dialects.dialect.Dialect
    get_or_raise
    format_time
    parse
    @@ -518,117 +196,17 @@
    class - Spark.Parser(sqlglot.dialects.hive.Hive.Parser): + Spark.Parser(sqlglot.dialects.spark2.Spark2.Parser):
    -
     54    class Parser(Hive.Parser):
    - 55        FUNCTIONS = {
    - 56            **Hive.Parser.FUNCTIONS,  # type: ignore
    - 57            "MAP_FROM_ARRAYS": exp.Map.from_arg_list,
    - 58            "TO_UNIX_TIMESTAMP": exp.StrToUnix.from_arg_list,
    - 59            "LEFT": lambda args: exp.Substring(
    - 60                this=seq_get(args, 0),
    - 61                start=exp.Literal.number(1),
    - 62                length=seq_get(args, 1),
    - 63            ),
    - 64            "SHIFTLEFT": lambda args: exp.BitwiseLeftShift(
    - 65                this=seq_get(args, 0),
    - 66                expression=seq_get(args, 1),
    - 67            ),
    - 68            "SHIFTRIGHT": lambda args: exp.BitwiseRightShift(
    - 69                this=seq_get(args, 0),
    - 70                expression=seq_get(args, 1),
    - 71            ),
    - 72            "RIGHT": lambda args: exp.Substring(
    - 73                this=seq_get(args, 0),
    - 74                start=exp.Sub(
    - 75                    this=exp.Length(this=seq_get(args, 0)),
    - 76                    expression=exp.Add(this=seq_get(args, 1), expression=exp.Literal.number(1)),
    - 77                ),
    - 78                length=seq_get(args, 1),
    - 79            ),
    - 80            "APPROX_PERCENTILE": exp.ApproxQuantile.from_arg_list,
    - 81            "BOOLEAN": lambda args: exp.Cast(
    - 82                this=seq_get(args, 0), to=exp.DataType.build("boolean")
    - 83            ),
    - 84            "IIF": exp.If.from_arg_list,
    - 85            "INT": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("int")),
    - 86            "AGGREGATE": exp.Reduce.from_arg_list,
    - 87            "DAYOFWEEK": lambda args: exp.DayOfWeek(
    - 88                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 89            ),
    - 90            "DAYOFMONTH": lambda args: exp.DayOfMonth(
    - 91                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 92            ),
    - 93            "DAYOFYEAR": lambda args: exp.DayOfYear(
    - 94                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 95            ),
    - 96            "WEEKOFYEAR": lambda args: exp.WeekOfYear(
    - 97                this=exp.TsOrDsToDate(this=seq_get(args, 0)),
    - 98            ),
    - 99            "DATE": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("date")),
    -100            "DATE_TRUNC": lambda args: exp.TimestampTrunc(
    -101                this=seq_get(args, 1),
    -102                unit=exp.var(seq_get(args, 0)),
    -103            ),
    -104            "STRING": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("string")),
    -105            "TRUNC": lambda args: exp.DateTrunc(unit=seq_get(args, 1), this=seq_get(args, 0)),
    -106            "TIMESTAMP": lambda args: exp.Cast(
    -107                this=seq_get(args, 0), to=exp.DataType.build("timestamp")
    -108            ),
    -109        }
    -110
    -111        FUNCTION_PARSERS = {
    -112            **parser.Parser.FUNCTION_PARSERS,  # type: ignore
    -113            "BROADCAST": lambda self: self._parse_join_hint("BROADCAST"),
    -114            "BROADCASTJOIN": lambda self: self._parse_join_hint("BROADCASTJOIN"),
    -115            "MAPJOIN": lambda self: self._parse_join_hint("MAPJOIN"),
    -116            "MERGE": lambda self: self._parse_join_hint("MERGE"),
    -117            "SHUFFLEMERGE": lambda self: self._parse_join_hint("SHUFFLEMERGE"),
    -118            "MERGEJOIN": lambda self: self._parse_join_hint("MERGEJOIN"),
    -119            "SHUFFLE_HASH": lambda self: self._parse_join_hint("SHUFFLE_HASH"),
    -120            "SHUFFLE_REPLICATE_NL": lambda self: self._parse_join_hint("SHUFFLE_REPLICATE_NL"),
    -121        }
    -122
    -123        def _parse_add_column(self) -> t.Optional[exp.Expression]:
    -124            return self._match_text_seq("ADD", "COLUMNS") and self._parse_schema()
    -125
    -126        def _parse_drop_column(self) -> t.Optional[exp.Expression]:
    -127            return self._match_text_seq("DROP", "COLUMNS") and self.expression(
    -128                exp.Drop,
    -129                this=self._parse_schema(),
    -130                kind="COLUMNS",
    -131            )
    -132
    -133        def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]:
    -134            # Spark doesn't add a suffix to the pivot columns when there's a single aggregation
    -135            if len(pivot_columns) == 1:
    -136                return [""]
    -137
    -138            names = []
    -139            for agg in pivot_columns:
    -140                if isinstance(agg, exp.Alias):
    -141                    names.append(agg.alias)
    -142                else:
    -143                    """
    -144                    This case corresponds to aggregations without aliases being used as suffixes
    -145                    (e.g. col_avg(foo)). We need to unquote identifiers because they're going to
    -146                    be quoted in the base parser's `_parse_pivot` method, due to `to_identifier`.
    -147                    Otherwise, we'd end up with `col_avg(`foo`)` (notice the double quotes).
    -148
    -149                    Moreover, function names are lowercased in order to mimic Spark's naming scheme.
    -150                    """
    -151                    agg_all_unquoted = agg.transform(
    -152                        lambda node: exp.Identifier(this=node.name, quoted=False)
    -153                        if isinstance(node, exp.Identifier)
    -154                        else node
    -155                    )
    -156                    names.append(agg_all_unquoted.sql(dialect="spark", normalize_functions="lower"))
    -157
    -158            return names
    +            
    38    class Parser(Spark2.Parser):
    +39        FUNCTIONS = {
    +40            **Spark2.Parser.FUNCTIONS,  # type: ignore
    +41            "DATEDIFF": _parse_datediff,
    +42        }
     
    @@ -679,74 +257,25 @@ Default: "nulls_are_small"
    class - Spark.Generator(sqlglot.dialects.hive.Hive.Generator): + Spark.Generator(sqlglot.dialects.spark2.Spark2.Generator):
    -
    160    class Generator(Hive.Generator):
    -161        TYPE_MAPPING = {
    -162            **Hive.Generator.TYPE_MAPPING,  # type: ignore
    -163            exp.DataType.Type.TINYINT: "BYTE",
    -164            exp.DataType.Type.SMALLINT: "SHORT",
    -165            exp.DataType.Type.BIGINT: "LONG",
    -166        }
    -167
    -168        PROPERTIES_LOCATION = {
    -169            **Hive.Generator.PROPERTIES_LOCATION,  # type: ignore
    -170            exp.EngineProperty: exp.Properties.Location.UNSUPPORTED,
    -171            exp.AutoIncrementProperty: exp.Properties.Location.UNSUPPORTED,
    -172            exp.CharacterSetProperty: exp.Properties.Location.UNSUPPORTED,
    -173            exp.CollateProperty: exp.Properties.Location.UNSUPPORTED,
    -174        }
    -175
    -176        TRANSFORMS = {
    -177            **Hive.Generator.TRANSFORMS,  # type: ignore
    -178            exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"),
    -179            exp.FileFormatProperty: lambda self, e: f"USING {e.name.upper()}",
    -180            exp.ArraySum: lambda self, e: f"AGGREGATE({self.sql(e, 'this')}, 0, (acc, x) -> acc + x, acc -> acc)",
    -181            exp.BitwiseLeftShift: rename_func("SHIFTLEFT"),
    -182            exp.BitwiseRightShift: rename_func("SHIFTRIGHT"),
    -183            exp.DateTrunc: lambda self, e: self.func("TRUNC", e.this, e.args.get("unit")),
    -184            exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */",
    -185            exp.StrToDate: _str_to_date,
    -186            exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})",
    -187            exp.UnixToTime: _unix_to_time_sql,
    -188            exp.Create: _create_sql,
    -189            exp.Map: _map_sql,
    -190            exp.Reduce: rename_func("AGGREGATE"),
    -191            exp.StructKwarg: lambda self, e: f"{self.sql(e, 'this')}: {self.sql(e, 'expression')}",
    -192            exp.TimestampTrunc: lambda self, e: self.func(
    -193                "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this
    -194            ),
    -195            exp.Trim: trim_sql,
    -196            exp.VariancePop: rename_func("VAR_POP"),
    -197            exp.DateFromParts: rename_func("MAKE_DATE"),
    -198            exp.LogicalOr: rename_func("BOOL_OR"),
    -199            exp.LogicalAnd: rename_func("BOOL_AND"),
    -200            exp.DayOfWeek: rename_func("DAYOFWEEK"),
    -201            exp.DayOfMonth: rename_func("DAYOFMONTH"),
    -202            exp.DayOfYear: rename_func("DAYOFYEAR"),
    -203            exp.WeekOfYear: rename_func("WEEKOFYEAR"),
    -204            exp.AtTimeZone: lambda self, e: f"FROM_UTC_TIMESTAMP({self.sql(e, 'this')}, {self.sql(e, 'zone')})",
    -205        }
    -206        TRANSFORMS.pop(exp.ArraySort)
    -207        TRANSFORMS.pop(exp.ILike)
    -208
    -209        WRAP_DERIVED_VALUES = False
    -210        CREATE_FUNCTION_RETURN_AS = False
    -211
    -212        def cast_sql(self, expression: exp.Cast) -> str:
    -213            if isinstance(expression.this, exp.Cast) and expression.this.is_type(
    -214                exp.DataType.Type.JSON
    -215            ):
    -216                schema = f"'{self.sql(expression, 'to')}'"
    -217                return self.func("FROM_JSON", expression.this.this, schema)
    -218            if expression.to.is_type(exp.DataType.Type.JSON):
    -219                return self.func("TO_JSON", expression.this)
    -220
    -221            return super(Spark.Generator, self).cast_sql(expression)
    +            
    44    class Generator(Spark2.Generator):
    +45        TRANSFORMS = Spark2.Generator.TRANSFORMS.copy()
    +46        TRANSFORMS.pop(exp.DateDiff)
    +47
    +48        def datediff_sql(self, expression: exp.DateDiff) -> str:
    +49            unit = self.sql(expression, "unit")
    +50            end = self.sql(expression, "this")
    +51            start = self.sql(expression, "expression")
    +52
    +53            if unit:
    +54                return self.func("DATEDIFF", unit, start, end)
    +55
    +56            return self.func("DATEDIFF", end, start)
     
    @@ -794,27 +323,26 @@ Default: True
    -
    - +
    +
    def - cast_sql(self, expression: sqlglot.expressions.Cast) -> str: + datediff_sql(self, expression: sqlglot.expressions.DateDiff) -> str: - +
    - -
    212        def cast_sql(self, expression: exp.Cast) -> str:
    -213            if isinstance(expression.this, exp.Cast) and expression.this.is_type(
    -214                exp.DataType.Type.JSON
    -215            ):
    -216                schema = f"'{self.sql(expression, 'to')}'"
    -217                return self.func("FROM_JSON", expression.this.this, schema)
    -218            if expression.to.is_type(exp.DataType.Type.JSON):
    -219                return self.func("TO_JSON", expression.this)
    -220
    -221            return super(Spark.Generator, self).cast_sql(expression)
    +    
    +            
    48        def datediff_sql(self, expression: exp.DateDiff) -> str:
    +49            unit = self.sql(expression, "unit")
    +50            end = self.sql(expression, "this")
    +51            start = self.sql(expression, "expression")
    +52
    +53            if unit:
    +54                return self.func("DATEDIFF", unit, start, end)
    +55
    +56            return self.func("DATEDIFF", end, start)
     
    @@ -943,7 +471,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -952,6 +480,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    @@ -1047,6 +576,10 @@ Default: True
    merge_sql
    tochar_sql
    +
    +
    sqlglot.dialects.hive.Hive.Generator
    arrayagg_sql
    @@ -1057,35 +590,6 @@ Default: True
    -
    - -
    - - class - Spark.Tokenizer(sqlglot.dialects.hive.Hive.Tokenizer): - - - -
    - -
    223    class Tokenizer(Hive.Tokenizer):
    -224        HEX_STRINGS = [("X'", "'")]
    -
    - - - - -
    -
    Inherited Members
    -
    - -
    -
    -
    + \ No newline at end of file diff --git a/docs/sqlglot/dialects/sqlite.html b/docs/sqlglot/dialects/sqlite.html index 187ace6..36079f8 100644 --- a/docs/sqlglot/dialects/sqlite.html +++ b/docs/sqlglot/dialects/sqlite.html @@ -159,92 +159,94 @@
    65 66 TRANSFORMS = { 67 **generator.Generator.TRANSFORMS, # type: ignore - 68 **transforms.ELIMINATE_QUALIFY, # type: ignore - 69 exp.CountIf: count_if_to_sum, - 70 exp.CurrentDate: lambda *_: "CURRENT_DATE", - 71 exp.CurrentTime: lambda *_: "CURRENT_TIME", - 72 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", - 73 exp.DateAdd: _date_add_sql, - 74 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), - 75 exp.ILike: no_ilike_sql, - 76 exp.JSONExtract: arrow_json_extract_sql, - 77 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, - 78 exp.JSONBExtract: arrow_json_extract_sql, - 79 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, - 80 exp.Levenshtein: rename_func("EDITDIST3"), - 81 exp.LogicalOr: rename_func("MAX"), - 82 exp.LogicalAnd: rename_func("MIN"), - 83 exp.TableSample: no_tablesample_sql, - 84 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), - 85 exp.TryCast: no_trycast_sql, - 86 } - 87 - 88 PROPERTIES_LOCATION = { - 89 **generator.Generator.PROPERTIES_LOCATION, # type: ignore - 90 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, - 91 } - 92 - 93 LIMIT_FETCH = "LIMIT" + 68 exp.CountIf: count_if_to_sum, + 69 exp.CurrentDate: lambda *_: "CURRENT_DATE", + 70 exp.CurrentTime: lambda *_: "CURRENT_TIME", + 71 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", + 72 exp.DateAdd: _date_add_sql, + 73 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), + 74 exp.ILike: no_ilike_sql, + 75 exp.JSONExtract: arrow_json_extract_sql, + 76 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, + 77 exp.JSONBExtract: arrow_json_extract_sql, + 78 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, + 79 exp.Levenshtein: rename_func("EDITDIST3"), + 80 exp.LogicalOr: rename_func("MAX"), + 81 exp.LogicalAnd: rename_func("MIN"), + 82 exp.Select: transforms.preprocess( + 83 [transforms.eliminate_distinct_on, transforms.eliminate_qualify] + 84 ), + 85 exp.TableSample: no_tablesample_sql, + 86 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), + 87 exp.TryCast: no_trycast_sql, + 88 } + 89 + 90 PROPERTIES_LOCATION = { + 91 k: exp.Properties.Location.UNSUPPORTED + 92 for k, v in generator.Generator.PROPERTIES_LOCATION.items() + 93 } 94 - 95 def cast_sql(self, expression: exp.Cast) -> str: - 96 if expression.to.this == exp.DataType.Type.DATE: - 97 return self.func("DATE", expression.this) - 98 - 99 return super().cast_sql(expression) + 95 LIMIT_FETCH = "LIMIT" + 96 + 97 def cast_sql(self, expression: exp.Cast) -> str: + 98 if expression.to.this == exp.DataType.Type.DATE: + 99 return self.func("DATE", expression.this) 100 -101 def datediff_sql(self, expression: exp.DateDiff) -> str: -102 unit = expression.args.get("unit") -103 unit = unit.name.upper() if unit else "DAY" -104 -105 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +101 return super().cast_sql(expression) +102 +103 def datediff_sql(self, expression: exp.DateDiff) -> str: +104 unit = expression.args.get("unit") +105 unit = unit.name.upper() if unit else "DAY" 106 -107 if unit == "MONTH": -108 sql = f"{sql} / 30.0" -109 elif unit == "YEAR": -110 sql = f"{sql} / 365.0" -111 elif unit == "HOUR": -112 sql = f"{sql} * 24.0" -113 elif unit == "MINUTE": -114 sql = f"{sql} * 1440.0" -115 elif unit == "SECOND": -116 sql = f"{sql} * 86400.0" -117 elif unit == "MILLISECOND": -118 sql = f"{sql} * 86400000.0" -119 elif unit == "MICROSECOND": -120 sql = f"{sql} * 86400000000.0" -121 elif unit == "NANOSECOND": -122 sql = f"{sql} * 8640000000000.0" -123 else: -124 self.unsupported("DATEDIFF unsupported for '{unit}'.") -125 -126 return f"CAST({sql} AS INTEGER)" +107 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +108 +109 if unit == "MONTH": +110 sql = f"{sql} / 30.0" +111 elif unit == "YEAR": +112 sql = f"{sql} / 365.0" +113 elif unit == "HOUR": +114 sql = f"{sql} * 24.0" +115 elif unit == "MINUTE": +116 sql = f"{sql} * 1440.0" +117 elif unit == "SECOND": +118 sql = f"{sql} * 86400.0" +119 elif unit == "MILLISECOND": +120 sql = f"{sql} * 86400000.0" +121 elif unit == "MICROSECOND": +122 sql = f"{sql} * 86400000000.0" +123 elif unit == "NANOSECOND": +124 sql = f"{sql} * 8640000000000.0" +125 else: +126 self.unsupported("DATEDIFF unsupported for '{unit}'.") 127 -128 # https://www.sqlite.org/lang_aggfunc.html#group_concat -129 def groupconcat_sql(self, expression): -130 this = expression.this -131 distinct = expression.find(exp.Distinct) -132 if distinct: -133 this = distinct.expressions[0] -134 distinct = "DISTINCT " -135 -136 if isinstance(expression.this, exp.Order): -137 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") -138 if expression.this.this and not distinct: -139 this = expression.this.this -140 -141 separator = expression.args.get("separator") -142 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" -143 -144 def least_sql(self, expression: exp.Least) -> str: -145 if len(expression.expressions) > 1: -146 return rename_func("MIN")(self, expression) -147 -148 return self.expressions(expression) +128 return f"CAST({sql} AS INTEGER)" +129 +130 # https://www.sqlite.org/lang_aggfunc.html#group_concat +131 def groupconcat_sql(self, expression): +132 this = expression.this +133 distinct = expression.find(exp.Distinct) +134 if distinct: +135 this = distinct.expressions[0] +136 distinct = "DISTINCT " +137 +138 if isinstance(expression.this, exp.Order): +139 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") +140 if expression.this.this and not distinct: +141 this = expression.this.this +142 +143 separator = expression.args.get("separator") +144 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" +145 +146 def least_sql(self, expression: exp.Least) -> str: +147 if len(expression.expressions) > 1: +148 return rename_func("MIN")(self, expression) 149 -150 def transaction_sql(self, expression: exp.Transaction) -> str: -151 this = expression.this -152 this = f" {this}" if this else "" -153 return f"BEGIN{this} TRANSACTION" +150 return self.expressions(expression) +151 +152 def transaction_sql(self, expression: exp.Transaction) -> str: +153 this = expression.this +154 this = f" {this}" if this else "" +155 return f"BEGIN{this} TRANSACTION"
    @@ -303,92 +305,94 @@
    66 67 TRANSFORMS = { 68 **generator.Generator.TRANSFORMS, # type: ignore - 69 **transforms.ELIMINATE_QUALIFY, # type: ignore - 70 exp.CountIf: count_if_to_sum, - 71 exp.CurrentDate: lambda *_: "CURRENT_DATE", - 72 exp.CurrentTime: lambda *_: "CURRENT_TIME", - 73 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", - 74 exp.DateAdd: _date_add_sql, - 75 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), - 76 exp.ILike: no_ilike_sql, - 77 exp.JSONExtract: arrow_json_extract_sql, - 78 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, - 79 exp.JSONBExtract: arrow_json_extract_sql, - 80 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, - 81 exp.Levenshtein: rename_func("EDITDIST3"), - 82 exp.LogicalOr: rename_func("MAX"), - 83 exp.LogicalAnd: rename_func("MIN"), - 84 exp.TableSample: no_tablesample_sql, - 85 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), - 86 exp.TryCast: no_trycast_sql, - 87 } - 88 - 89 PROPERTIES_LOCATION = { - 90 **generator.Generator.PROPERTIES_LOCATION, # type: ignore - 91 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, - 92 } - 93 - 94 LIMIT_FETCH = "LIMIT" + 69 exp.CountIf: count_if_to_sum, + 70 exp.CurrentDate: lambda *_: "CURRENT_DATE", + 71 exp.CurrentTime: lambda *_: "CURRENT_TIME", + 72 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", + 73 exp.DateAdd: _date_add_sql, + 74 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), + 75 exp.ILike: no_ilike_sql, + 76 exp.JSONExtract: arrow_json_extract_sql, + 77 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, + 78 exp.JSONBExtract: arrow_json_extract_sql, + 79 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, + 80 exp.Levenshtein: rename_func("EDITDIST3"), + 81 exp.LogicalOr: rename_func("MAX"), + 82 exp.LogicalAnd: rename_func("MIN"), + 83 exp.Select: transforms.preprocess( + 84 [transforms.eliminate_distinct_on, transforms.eliminate_qualify] + 85 ), + 86 exp.TableSample: no_tablesample_sql, + 87 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), + 88 exp.TryCast: no_trycast_sql, + 89 } + 90 + 91 PROPERTIES_LOCATION = { + 92 k: exp.Properties.Location.UNSUPPORTED + 93 for k, v in generator.Generator.PROPERTIES_LOCATION.items() + 94 } 95 - 96 def cast_sql(self, expression: exp.Cast) -> str: - 97 if expression.to.this == exp.DataType.Type.DATE: - 98 return self.func("DATE", expression.this) - 99 -100 return super().cast_sql(expression) + 96 LIMIT_FETCH = "LIMIT" + 97 + 98 def cast_sql(self, expression: exp.Cast) -> str: + 99 if expression.to.this == exp.DataType.Type.DATE: +100 return self.func("DATE", expression.this) 101 -102 def datediff_sql(self, expression: exp.DateDiff) -> str: -103 unit = expression.args.get("unit") -104 unit = unit.name.upper() if unit else "DAY" -105 -106 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +102 return super().cast_sql(expression) +103 +104 def datediff_sql(self, expression: exp.DateDiff) -> str: +105 unit = expression.args.get("unit") +106 unit = unit.name.upper() if unit else "DAY" 107 -108 if unit == "MONTH": -109 sql = f"{sql} / 30.0" -110 elif unit == "YEAR": -111 sql = f"{sql} / 365.0" -112 elif unit == "HOUR": -113 sql = f"{sql} * 24.0" -114 elif unit == "MINUTE": -115 sql = f"{sql} * 1440.0" -116 elif unit == "SECOND": -117 sql = f"{sql} * 86400.0" -118 elif unit == "MILLISECOND": -119 sql = f"{sql} * 86400000.0" -120 elif unit == "MICROSECOND": -121 sql = f"{sql} * 86400000000.0" -122 elif unit == "NANOSECOND": -123 sql = f"{sql} * 8640000000000.0" -124 else: -125 self.unsupported("DATEDIFF unsupported for '{unit}'.") -126 -127 return f"CAST({sql} AS INTEGER)" +108 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +109 +110 if unit == "MONTH": +111 sql = f"{sql} / 30.0" +112 elif unit == "YEAR": +113 sql = f"{sql} / 365.0" +114 elif unit == "HOUR": +115 sql = f"{sql} * 24.0" +116 elif unit == "MINUTE": +117 sql = f"{sql} * 1440.0" +118 elif unit == "SECOND": +119 sql = f"{sql} * 86400.0" +120 elif unit == "MILLISECOND": +121 sql = f"{sql} * 86400000.0" +122 elif unit == "MICROSECOND": +123 sql = f"{sql} * 86400000000.0" +124 elif unit == "NANOSECOND": +125 sql = f"{sql} * 8640000000000.0" +126 else: +127 self.unsupported("DATEDIFF unsupported for '{unit}'.") 128 -129 # https://www.sqlite.org/lang_aggfunc.html#group_concat -130 def groupconcat_sql(self, expression): -131 this = expression.this -132 distinct = expression.find(exp.Distinct) -133 if distinct: -134 this = distinct.expressions[0] -135 distinct = "DISTINCT " -136 -137 if isinstance(expression.this, exp.Order): -138 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") -139 if expression.this.this and not distinct: -140 this = expression.this.this -141 -142 separator = expression.args.get("separator") -143 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" -144 -145 def least_sql(self, expression: exp.Least) -> str: -146 if len(expression.expressions) > 1: -147 return rename_func("MIN")(self, expression) -148 -149 return self.expressions(expression) +129 return f"CAST({sql} AS INTEGER)" +130 +131 # https://www.sqlite.org/lang_aggfunc.html#group_concat +132 def groupconcat_sql(self, expression): +133 this = expression.this +134 distinct = expression.find(exp.Distinct) +135 if distinct: +136 this = distinct.expressions[0] +137 distinct = "DISTINCT " +138 +139 if isinstance(expression.this, exp.Order): +140 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") +141 if expression.this.this and not distinct: +142 this = expression.this.this +143 +144 separator = expression.args.get("separator") +145 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" +146 +147 def least_sql(self, expression: exp.Least) -> str: +148 if len(expression.expressions) > 1: +149 return rename_func("MIN")(self, expression) 150 -151 def transaction_sql(self, expression: exp.Transaction) -> str: -152 this = expression.this -153 this = f" {this}" if this else "" -154 return f"BEGIN{this} TRANSACTION" +151 return self.expressions(expression) +152 +153 def transaction_sql(self, expression: exp.Transaction) -> str: +154 this = expression.this +155 this = f" {this}" if this else "" +156 return f"BEGIN{this} TRANSACTION"
    @@ -546,92 +550,94 @@ Default: "nulls_are_small"
    66 67 TRANSFORMS = { 68 **generator.Generator.TRANSFORMS, # type: ignore - 69 **transforms.ELIMINATE_QUALIFY, # type: ignore - 70 exp.CountIf: count_if_to_sum, - 71 exp.CurrentDate: lambda *_: "CURRENT_DATE", - 72 exp.CurrentTime: lambda *_: "CURRENT_TIME", - 73 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", - 74 exp.DateAdd: _date_add_sql, - 75 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), - 76 exp.ILike: no_ilike_sql, - 77 exp.JSONExtract: arrow_json_extract_sql, - 78 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, - 79 exp.JSONBExtract: arrow_json_extract_sql, - 80 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, - 81 exp.Levenshtein: rename_func("EDITDIST3"), - 82 exp.LogicalOr: rename_func("MAX"), - 83 exp.LogicalAnd: rename_func("MIN"), - 84 exp.TableSample: no_tablesample_sql, - 85 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), - 86 exp.TryCast: no_trycast_sql, - 87 } - 88 - 89 PROPERTIES_LOCATION = { - 90 **generator.Generator.PROPERTIES_LOCATION, # type: ignore - 91 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, - 92 } - 93 - 94 LIMIT_FETCH = "LIMIT" + 69 exp.CountIf: count_if_to_sum, + 70 exp.CurrentDate: lambda *_: "CURRENT_DATE", + 71 exp.CurrentTime: lambda *_: "CURRENT_TIME", + 72 exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", + 73 exp.DateAdd: _date_add_sql, + 74 exp.DateStrToDate: lambda self, e: self.sql(e, "this"), + 75 exp.ILike: no_ilike_sql, + 76 exp.JSONExtract: arrow_json_extract_sql, + 77 exp.JSONExtractScalar: arrow_json_extract_scalar_sql, + 78 exp.JSONBExtract: arrow_json_extract_sql, + 79 exp.JSONBExtractScalar: arrow_json_extract_scalar_sql, + 80 exp.Levenshtein: rename_func("EDITDIST3"), + 81 exp.LogicalOr: rename_func("MAX"), + 82 exp.LogicalAnd: rename_func("MIN"), + 83 exp.Select: transforms.preprocess( + 84 [transforms.eliminate_distinct_on, transforms.eliminate_qualify] + 85 ), + 86 exp.TableSample: no_tablesample_sql, + 87 exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), + 88 exp.TryCast: no_trycast_sql, + 89 } + 90 + 91 PROPERTIES_LOCATION = { + 92 k: exp.Properties.Location.UNSUPPORTED + 93 for k, v in generator.Generator.PROPERTIES_LOCATION.items() + 94 } 95 - 96 def cast_sql(self, expression: exp.Cast) -> str: - 97 if expression.to.this == exp.DataType.Type.DATE: - 98 return self.func("DATE", expression.this) - 99 -100 return super().cast_sql(expression) + 96 LIMIT_FETCH = "LIMIT" + 97 + 98 def cast_sql(self, expression: exp.Cast) -> str: + 99 if expression.to.this == exp.DataType.Type.DATE: +100 return self.func("DATE", expression.this) 101 -102 def datediff_sql(self, expression: exp.DateDiff) -> str: -103 unit = expression.args.get("unit") -104 unit = unit.name.upper() if unit else "DAY" -105 -106 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +102 return super().cast_sql(expression) +103 +104 def datediff_sql(self, expression: exp.DateDiff) -> str: +105 unit = expression.args.get("unit") +106 unit = unit.name.upper() if unit else "DAY" 107 -108 if unit == "MONTH": -109 sql = f"{sql} / 30.0" -110 elif unit == "YEAR": -111 sql = f"{sql} / 365.0" -112 elif unit == "HOUR": -113 sql = f"{sql} * 24.0" -114 elif unit == "MINUTE": -115 sql = f"{sql} * 1440.0" -116 elif unit == "SECOND": -117 sql = f"{sql} * 86400.0" -118 elif unit == "MILLISECOND": -119 sql = f"{sql} * 86400000.0" -120 elif unit == "MICROSECOND": -121 sql = f"{sql} * 86400000000.0" -122 elif unit == "NANOSECOND": -123 sql = f"{sql} * 8640000000000.0" -124 else: -125 self.unsupported("DATEDIFF unsupported for '{unit}'.") -126 -127 return f"CAST({sql} AS INTEGER)" +108 sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))" +109 +110 if unit == "MONTH": +111 sql = f"{sql} / 30.0" +112 elif unit == "YEAR": +113 sql = f"{sql} / 365.0" +114 elif unit == "HOUR": +115 sql = f"{sql} * 24.0" +116 elif unit == "MINUTE": +117 sql = f"{sql} * 1440.0" +118 elif unit == "SECOND": +119 sql = f"{sql} * 86400.0" +120 elif unit == "MILLISECOND": +121 sql = f"{sql} * 86400000.0" +122 elif unit == "MICROSECOND": +123 sql = f"{sql} * 86400000000.0" +124 elif unit == "NANOSECOND": +125 sql = f"{sql} * 8640000000000.0" +126 else: +127 self.unsupported("DATEDIFF unsupported for '{unit}'.") 128 -129 # https://www.sqlite.org/lang_aggfunc.html#group_concat -130 def groupconcat_sql(self, expression): -131 this = expression.this -132 distinct = expression.find(exp.Distinct) -133 if distinct: -134 this = distinct.expressions[0] -135 distinct = "DISTINCT " -136 -137 if isinstance(expression.this, exp.Order): -138 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") -139 if expression.this.this and not distinct: -140 this = expression.this.this -141 -142 separator = expression.args.get("separator") -143 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" -144 -145 def least_sql(self, expression: exp.Least) -> str: -146 if len(expression.expressions) > 1: -147 return rename_func("MIN")(self, expression) -148 -149 return self.expressions(expression) +129 return f"CAST({sql} AS INTEGER)" +130 +131 # https://www.sqlite.org/lang_aggfunc.html#group_concat +132 def groupconcat_sql(self, expression): +133 this = expression.this +134 distinct = expression.find(exp.Distinct) +135 if distinct: +136 this = distinct.expressions[0] +137 distinct = "DISTINCT " +138 +139 if isinstance(expression.this, exp.Order): +140 self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.") +141 if expression.this.this and not distinct: +142 this = expression.this.this +143 +144 separator = expression.args.get("separator") +145 return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})" +146 +147 def least_sql(self, expression: exp.Least) -> str: +148 if len(expression.expressions) > 1: +149 return rename_func("MIN")(self, expression) 150 -151 def transaction_sql(self, expression: exp.Transaction) -> str: -152 this = expression.this -153 this = f" {this}" if this else "" -154 return f"BEGIN{this} TRANSACTION" +151 return self.expressions(expression) +152 +153 def transaction_sql(self, expression: exp.Transaction) -> str: +154 this = expression.this +155 this = f" {this}" if this else "" +156 return f"BEGIN{this} TRANSACTION"
    @@ -690,11 +696,11 @@ Default: True -
     96        def cast_sql(self, expression: exp.Cast) -> str:
    - 97            if expression.to.this == exp.DataType.Type.DATE:
    - 98                return self.func("DATE", expression.this)
    - 99
    -100            return super().cast_sql(expression)
    +            
     98        def cast_sql(self, expression: exp.Cast) -> str:
    + 99            if expression.to.this == exp.DataType.Type.DATE:
    +100                return self.func("DATE", expression.this)
    +101
    +102            return super().cast_sql(expression)
     
    @@ -712,32 +718,32 @@ Default: True
    -
    102        def datediff_sql(self, expression: exp.DateDiff) -> str:
    -103            unit = expression.args.get("unit")
    -104            unit = unit.name.upper() if unit else "DAY"
    -105
    -106            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
    +            
    104        def datediff_sql(self, expression: exp.DateDiff) -> str:
    +105            unit = expression.args.get("unit")
    +106            unit = unit.name.upper() if unit else "DAY"
     107
    -108            if unit == "MONTH":
    -109                sql = f"{sql} / 30.0"
    -110            elif unit == "YEAR":
    -111                sql = f"{sql} / 365.0"
    -112            elif unit == "HOUR":
    -113                sql = f"{sql} * 24.0"
    -114            elif unit == "MINUTE":
    -115                sql = f"{sql} * 1440.0"
    -116            elif unit == "SECOND":
    -117                sql = f"{sql} * 86400.0"
    -118            elif unit == "MILLISECOND":
    -119                sql = f"{sql} * 86400000.0"
    -120            elif unit == "MICROSECOND":
    -121                sql = f"{sql} * 86400000000.0"
    -122            elif unit == "NANOSECOND":
    -123                sql = f"{sql} * 8640000000000.0"
    -124            else:
    -125                self.unsupported("DATEDIFF unsupported for '{unit}'.")
    -126
    -127            return f"CAST({sql} AS INTEGER)"
    +108            sql = f"(JULIANDAY({self.sql(expression, 'this')}) - JULIANDAY({self.sql(expression, 'expression')}))"
    +109
    +110            if unit == "MONTH":
    +111                sql = f"{sql} / 30.0"
    +112            elif unit == "YEAR":
    +113                sql = f"{sql} / 365.0"
    +114            elif unit == "HOUR":
    +115                sql = f"{sql} * 24.0"
    +116            elif unit == "MINUTE":
    +117                sql = f"{sql} * 1440.0"
    +118            elif unit == "SECOND":
    +119                sql = f"{sql} * 86400.0"
    +120            elif unit == "MILLISECOND":
    +121                sql = f"{sql} * 86400000.0"
    +122            elif unit == "MICROSECOND":
    +123                sql = f"{sql} * 86400000000.0"
    +124            elif unit == "NANOSECOND":
    +125                sql = f"{sql} * 8640000000000.0"
    +126            else:
    +127                self.unsupported("DATEDIFF unsupported for '{unit}'.")
    +128
    +129            return f"CAST({sql} AS INTEGER)"
     
    @@ -755,20 +761,20 @@ Default: True
    -
    130        def groupconcat_sql(self, expression):
    -131            this = expression.this
    -132            distinct = expression.find(exp.Distinct)
    -133            if distinct:
    -134                this = distinct.expressions[0]
    -135                distinct = "DISTINCT "
    -136
    -137            if isinstance(expression.this, exp.Order):
    -138                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
    -139                if expression.this.this and not distinct:
    -140                    this = expression.this.this
    -141
    -142            separator = expression.args.get("separator")
    -143            return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})"
    +            
    132        def groupconcat_sql(self, expression):
    +133            this = expression.this
    +134            distinct = expression.find(exp.Distinct)
    +135            if distinct:
    +136                this = distinct.expressions[0]
    +137                distinct = "DISTINCT "
    +138
    +139            if isinstance(expression.this, exp.Order):
    +140                self.unsupported("SQLite GROUP_CONCAT doesn't support ORDER BY.")
    +141                if expression.this.this and not distinct:
    +142                    this = expression.this.this
    +143
    +144            separator = expression.args.get("separator")
    +145            return f"GROUP_CONCAT({distinct or ''}{self.format_args(this, separator)})"
     
    @@ -786,11 +792,11 @@ Default: True
    -
    145        def least_sql(self, expression: exp.Least) -> str:
    -146            if len(expression.expressions) > 1:
    -147                return rename_func("MIN")(self, expression)
    -148
    -149            return self.expressions(expression)
    +            
    147        def least_sql(self, expression: exp.Least) -> str:
    +148            if len(expression.expressions) > 1:
    +149                return rename_func("MIN")(self, expression)
    +150
    +151            return self.expressions(expression)
     
    @@ -808,10 +814,10 @@ Default: True
    -
    151        def transaction_sql(self, expression: exp.Transaction) -> str:
    -152            this = expression.this
    -153            this = f" {this}" if this else ""
    -154            return f"BEGIN{this} TRANSACTION"
    +            
    153        def transaction_sql(self, expression: exp.Transaction) -> str:
    +154            this = expression.this
    +155            this = f" {this}" if this else ""
    +156            return f"BEGIN{this} TRANSACTION"
     
    @@ -942,7 +948,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -951,6 +957,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/starrocks.html b/docs/sqlglot/dialects/starrocks.html index 7ea6da5..a947798 100644 --- a/docs/sqlglot/dialects/starrocks.html +++ b/docs/sqlglot/dialects/starrocks.html @@ -107,15 +107,16 @@
    34 exp.JSONExtractScalar: arrow_json_extract_sql, 35 exp.JSONExtract: arrow_json_extract_sql, 36 exp.DateDiff: rename_func("DATEDIFF"), -37 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -38 exp.TimestampTrunc: lambda self, e: self.func( -39 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this -40 ), -41 exp.TimeStrToDate: rename_func("TO_DATE"), -42 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", -43 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -44 } -45 TRANSFORMS.pop(exp.DateTrunc) +37 exp.RegexpLike: rename_func("REGEXP"), +38 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +39 exp.TimestampTrunc: lambda self, e: self.func( +40 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this +41 ), +42 exp.TimeStrToDate: rename_func("TO_DATE"), +43 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", +44 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +45 } +46 TRANSFORMS.pop(exp.DateTrunc)
    @@ -155,15 +156,16 @@ 35 exp.JSONExtractScalar: arrow_json_extract_sql, 36 exp.JSONExtract: arrow_json_extract_sql, 37 exp.DateDiff: rename_func("DATEDIFF"), -38 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -39 exp.TimestampTrunc: lambda self, e: self.func( -40 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this -41 ), -42 exp.TimeStrToDate: rename_func("TO_DATE"), -43 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", -44 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -45 } -46 TRANSFORMS.pop(exp.DateTrunc) +38 exp.RegexpLike: rename_func("REGEXP"), +39 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +40 exp.TimestampTrunc: lambda self, e: self.func( +41 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this +42 ), +43 exp.TimeStrToDate: rename_func("TO_DATE"), +44 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", +45 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +46 } +47 TRANSFORMS.pop(exp.DateTrunc) @@ -280,15 +282,16 @@ Default: "nulls_are_small" 35 exp.JSONExtractScalar: arrow_json_extract_sql, 36 exp.JSONExtract: arrow_json_extract_sql, 37 exp.DateDiff: rename_func("DATEDIFF"), -38 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", -39 exp.TimestampTrunc: lambda self, e: self.func( -40 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this -41 ), -42 exp.TimeStrToDate: rename_func("TO_DATE"), -43 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", -44 exp.UnixToTime: rename_func("FROM_UNIXTIME"), -45 } -46 TRANSFORMS.pop(exp.DateTrunc) +38 exp.RegexpLike: rename_func("REGEXP"), +39 exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", +40 exp.TimestampTrunc: lambda self, e: self.func( +41 "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this +42 ), +43 exp.TimeStrToDate: rename_func("TO_DATE"), +44 exp.UnixToStr: lambda self, e: f"FROM_UNIXTIME({self.sql(e, 'this')}, {self.format_time(e)})", +45 exp.UnixToTime: rename_func("FROM_UNIXTIME"), +46 } +47 TRANSFORMS.pop(exp.DateTrunc) @@ -460,7 +463,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -469,6 +472,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/tableau.html b/docs/sqlglot/dialects/tableau.html index af176af..bce76c0 100644 --- a/docs/sqlglot/dialects/tableau.html +++ b/docs/sqlglot/dialects/tableau.html @@ -73,7 +73,7 @@
     1from __future__ import annotations
      2
    - 3from sqlglot import exp, generator, parser
    + 3from sqlglot import exp, generator, parser, transforms
      4from sqlglot.dialects.dialect import Dialect
      5
      6
    @@ -102,18 +102,19 @@
     29            exp.If: _if_sql,
     30            exp.Coalesce: _coalesce_sql,
     31            exp.Count: _count_sql,
    -32        }
    -33
    -34        PROPERTIES_LOCATION = {
    -35            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    -36            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    -37        }
    -38
    -39    class Parser(parser.Parser):
    -40        FUNCTIONS = {
    -41            **parser.Parser.FUNCTIONS,  # type: ignore
    -42            "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)),
    -43        }
    +32            exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]),
    +33        }
    +34
    +35        PROPERTIES_LOCATION = {
    +36            **generator.Generator.PROPERTIES_LOCATION,  # type: ignore
    +37            exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED,
    +38        }
    +39
    +40    class Parser(parser.Parser):
    +41        FUNCTIONS = {
    +42            **parser.Parser.FUNCTIONS,  # type: ignore
    +43            "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)),
    +44        }
     
    @@ -139,18 +140,19 @@ 30 exp.If: _if_sql, 31 exp.Coalesce: _coalesce_sql, 32 exp.Count: _count_sql, -33 } -34 -35 PROPERTIES_LOCATION = { -36 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -37 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -38 } -39 -40 class Parser(parser.Parser): -41 FUNCTIONS = { -42 **parser.Parser.FUNCTIONS, # type: ignore -43 "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)), -44 } +33 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +34 } +35 +36 PROPERTIES_LOCATION = { +37 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +38 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +39 } +40 +41 class Parser(parser.Parser): +42 FUNCTIONS = { +43 **parser.Parser.FUNCTIONS, # type: ignore +44 "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)), +45 } @@ -194,12 +196,13 @@ 30 exp.If: _if_sql, 31 exp.Coalesce: _coalesce_sql, 32 exp.Count: _count_sql, -33 } -34 -35 PROPERTIES_LOCATION = { -36 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -37 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -38 } +33 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +34 } +35 +36 PROPERTIES_LOCATION = { +37 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +38 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +39 } @@ -371,7 +374,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -380,6 +383,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    @@ -491,11 +495,11 @@ Default: True -
    40    class Parser(parser.Parser):
    -41        FUNCTIONS = {
    -42            **parser.Parser.FUNCTIONS,  # type: ignore
    -43            "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)),
    -44        }
    +            
    41    class Parser(parser.Parser):
    +42        FUNCTIONS = {
    +43            **parser.Parser.FUNCTIONS,  # type: ignore
    +44            "COUNTD": lambda args: exp.Count(this=exp.Distinct(expressions=args)),
    +45        }
     
    diff --git a/docs/sqlglot/dialects/teradata.html b/docs/sqlglot/dialects/teradata.html index 0666ea1..60948e2 100644 --- a/docs/sqlglot/dialects/teradata.html +++ b/docs/sqlglot/dialects/teradata.html @@ -96,7 +96,7 @@
    2 3import typing as t 4 - 5from sqlglot import exp, generator, parser, tokens + 5from sqlglot import exp, generator, parser, tokens, transforms 6from sqlglot.dialects.dialect import ( 7 Dialect, 8 format_time_lambda, @@ -242,38 +242,39 @@ 148 **generator.Generator.TRANSFORMS, 149 exp.Max: max_or_greatest, 150 exp.Min: min_or_least, -151 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", -152 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -153 } -154 -155 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: -156 return f"PARTITION BY {self.sql(expression, 'this')}" -157 -158 # FROM before SET in Teradata UPDATE syntax -159 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause -160 def update_sql(self, expression: exp.Update) -> str: -161 this = self.sql(expression, "this") -162 from_sql = self.sql(expression, "from") -163 set_sql = self.expressions(expression, flat=True) -164 where_sql = self.sql(expression, "where") -165 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" -166 return self.prepend_ctes(expression, sql) -167 -168 def mod_sql(self, expression: exp.Mod) -> str: -169 return self.binary(expression, "MOD") -170 -171 def datatype_sql(self, expression: exp.DataType) -> str: -172 type_sql = super().datatype_sql(expression) -173 prefix_sql = expression.args.get("prefix") -174 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql -175 -176 def rangen_sql(self, expression: exp.RangeN) -> str: -177 this = self.sql(expression, "this") -178 expressions_sql = self.expressions(expression) -179 each_sql = self.sql(expression, "each") -180 each_sql = f" EACH {each_sql}" if each_sql else "" -181 -182 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" +151 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +152 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", +153 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +154 } +155 +156 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: +157 return f"PARTITION BY {self.sql(expression, 'this')}" +158 +159 # FROM before SET in Teradata UPDATE syntax +160 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause +161 def update_sql(self, expression: exp.Update) -> str: +162 this = self.sql(expression, "this") +163 from_sql = self.sql(expression, "from") +164 set_sql = self.expressions(expression, flat=True) +165 where_sql = self.sql(expression, "where") +166 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" +167 return self.prepend_ctes(expression, sql) +168 +169 def mod_sql(self, expression: exp.Mod) -> str: +170 return self.binary(expression, "MOD") +171 +172 def datatype_sql(self, expression: exp.DataType) -> str: +173 type_sql = super().datatype_sql(expression) +174 prefix_sql = expression.args.get("prefix") +175 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +176 +177 def rangen_sql(self, expression: exp.RangeN) -> str: +178 this = self.sql(expression, "this") +179 expressions_sql = self.expressions(expression) +180 each_sql = self.sql(expression, "each") +181 each_sql = f" EACH {each_sql}" if each_sql else "" +182 +183 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    @@ -425,38 +426,39 @@ 149 **generator.Generator.TRANSFORMS, 150 exp.Max: max_or_greatest, 151 exp.Min: min_or_least, -152 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", -153 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -154 } -155 -156 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: -157 return f"PARTITION BY {self.sql(expression, 'this')}" -158 -159 # FROM before SET in Teradata UPDATE syntax -160 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause -161 def update_sql(self, expression: exp.Update) -> str: -162 this = self.sql(expression, "this") -163 from_sql = self.sql(expression, "from") -164 set_sql = self.expressions(expression, flat=True) -165 where_sql = self.sql(expression, "where") -166 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" -167 return self.prepend_ctes(expression, sql) -168 -169 def mod_sql(self, expression: exp.Mod) -> str: -170 return self.binary(expression, "MOD") -171 -172 def datatype_sql(self, expression: exp.DataType) -> str: -173 type_sql = super().datatype_sql(expression) -174 prefix_sql = expression.args.get("prefix") -175 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql -176 -177 def rangen_sql(self, expression: exp.RangeN) -> str: -178 this = self.sql(expression, "this") -179 expressions_sql = self.expressions(expression) -180 each_sql = self.sql(expression, "each") -181 each_sql = f" EACH {each_sql}" if each_sql else "" -182 -183 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" +152 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +153 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", +154 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +155 } +156 +157 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: +158 return f"PARTITION BY {self.sql(expression, 'this')}" +159 +160 # FROM before SET in Teradata UPDATE syntax +161 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause +162 def update_sql(self, expression: exp.Update) -> str: +163 this = self.sql(expression, "this") +164 from_sql = self.sql(expression, "from") +165 set_sql = self.expressions(expression, flat=True) +166 where_sql = self.sql(expression, "where") +167 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" +168 return self.prepend_ctes(expression, sql) +169 +170 def mod_sql(self, expression: exp.Mod) -> str: +171 return self.binary(expression, "MOD") +172 +173 def datatype_sql(self, expression: exp.DataType) -> str: +174 type_sql = super().datatype_sql(expression) +175 prefix_sql = expression.args.get("prefix") +176 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +177 +178 def rangen_sql(self, expression: exp.RangeN) -> str: +179 this = self.sql(expression, "this") +180 expressions_sql = self.expressions(expression) +181 each_sql = self.sql(expression, "each") +182 each_sql = f" EACH {each_sql}" if each_sql else "" +183 +184 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" @@ -707,38 +709,39 @@ Default: "nulls_are_small" 149 **generator.Generator.TRANSFORMS, 150 exp.Max: max_or_greatest, 151 exp.Min: min_or_least, -152 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", -153 exp.ToChar: lambda self, e: self.function_fallback_sql(e), -154 } -155 -156 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: -157 return f"PARTITION BY {self.sql(expression, 'this')}" -158 -159 # FROM before SET in Teradata UPDATE syntax -160 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause -161 def update_sql(self, expression: exp.Update) -> str: -162 this = self.sql(expression, "this") -163 from_sql = self.sql(expression, "from") -164 set_sql = self.expressions(expression, flat=True) -165 where_sql = self.sql(expression, "where") -166 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" -167 return self.prepend_ctes(expression, sql) -168 -169 def mod_sql(self, expression: exp.Mod) -> str: -170 return self.binary(expression, "MOD") -171 -172 def datatype_sql(self, expression: exp.DataType) -> str: -173 type_sql = super().datatype_sql(expression) -174 prefix_sql = expression.args.get("prefix") -175 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql -176 -177 def rangen_sql(self, expression: exp.RangeN) -> str: -178 this = self.sql(expression, "this") -179 expressions_sql = self.expressions(expression) -180 each_sql = self.sql(expression, "each") -181 each_sql = f" EACH {each_sql}" if each_sql else "" -182 -183 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" +152 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), +153 exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", +154 exp.ToChar: lambda self, e: self.function_fallback_sql(e), +155 } +156 +157 def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str: +158 return f"PARTITION BY {self.sql(expression, 'this')}" +159 +160 # FROM before SET in Teradata UPDATE syntax +161 # https://docs.teradata.com/r/Enterprise_IntelliFlex_VMware/Teradata-VantageTM-SQL-Data-Manipulation-Language-17.20/Statement-Syntax/UPDATE/UPDATE-Syntax-Basic-Form-FROM-Clause +162 def update_sql(self, expression: exp.Update) -> str: +163 this = self.sql(expression, "this") +164 from_sql = self.sql(expression, "from") +165 set_sql = self.expressions(expression, flat=True) +166 where_sql = self.sql(expression, "where") +167 sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}" +168 return self.prepend_ctes(expression, sql) +169 +170 def mod_sql(self, expression: exp.Mod) -> str: +171 return self.binary(expression, "MOD") +172 +173 def datatype_sql(self, expression: exp.DataType) -> str: +174 type_sql = super().datatype_sql(expression) +175 prefix_sql = expression.args.get("prefix") +176 return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql +177 +178 def rangen_sql(self, expression: exp.RangeN) -> str: +179 this = self.sql(expression, "this") +180 expressions_sql = self.expressions(expression) +181 each_sql = self.sql(expression, "each") +182 each_sql = f" EACH {each_sql}" if each_sql else "" +183 +184 return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})" @@ -797,8 +800,8 @@ Default: True -
    156        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    -157            return f"PARTITION BY {self.sql(expression, 'this')}"
    +            
    157        def partitionedbyproperty_sql(self, expression: exp.PartitionedByProperty) -> str:
    +158            return f"PARTITION BY {self.sql(expression, 'this')}"
     
    @@ -816,13 +819,13 @@ Default: True
    -
    161        def update_sql(self, expression: exp.Update) -> str:
    -162            this = self.sql(expression, "this")
    -163            from_sql = self.sql(expression, "from")
    -164            set_sql = self.expressions(expression, flat=True)
    -165            where_sql = self.sql(expression, "where")
    -166            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    -167            return self.prepend_ctes(expression, sql)
    +            
    162        def update_sql(self, expression: exp.Update) -> str:
    +163            this = self.sql(expression, "this")
    +164            from_sql = self.sql(expression, "from")
    +165            set_sql = self.expressions(expression, flat=True)
    +166            where_sql = self.sql(expression, "where")
    +167            sql = f"UPDATE {this}{from_sql} SET {set_sql}{where_sql}"
    +168            return self.prepend_ctes(expression, sql)
     
    @@ -840,8 +843,8 @@ Default: True
    -
    169        def mod_sql(self, expression: exp.Mod) -> str:
    -170            return self.binary(expression, "MOD")
    +            
    170        def mod_sql(self, expression: exp.Mod) -> str:
    +171            return self.binary(expression, "MOD")
     
    @@ -859,10 +862,10 @@ Default: True
    -
    172        def datatype_sql(self, expression: exp.DataType) -> str:
    -173            type_sql = super().datatype_sql(expression)
    -174            prefix_sql = expression.args.get("prefix")
    -175            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
    +            
    173        def datatype_sql(self, expression: exp.DataType) -> str:
    +174            type_sql = super().datatype_sql(expression)
    +175            prefix_sql = expression.args.get("prefix")
    +176            return f"SYSUDTLIB.{type_sql}" if prefix_sql else type_sql
     
    @@ -880,13 +883,13 @@ Default: True
    -
    177        def rangen_sql(self, expression: exp.RangeN) -> str:
    -178            this = self.sql(expression, "this")
    -179            expressions_sql = self.expressions(expression)
    -180            each_sql = self.sql(expression, "each")
    -181            each_sql = f" EACH {each_sql}" if each_sql else ""
    -182
    -183            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
    +            
    178        def rangen_sql(self, expression: exp.RangeN) -> str:
    +179            this = self.sql(expression, "this")
    +180            expressions_sql = self.expressions(expression)
    +181            each_sql = self.sql(expression, "each")
    +182            each_sql = f" EACH {each_sql}" if each_sql else ""
    +183
    +184            return f"RANGE_N({this} BETWEEN {expressions_sql}{each_sql})"
     
    @@ -1015,7 +1018,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1024,6 +1027,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/trino.html b/docs/sqlglot/dialects/trino.html index 3baa74c..dbf148e 100644 --- a/docs/sqlglot/dialects/trino.html +++ b/docs/sqlglot/dialects/trino.html @@ -324,7 +324,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -333,6 +333,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/dialects/tsql.html b/docs/sqlglot/dialects/tsql.html index d1c2096..dedf090 100644 --- a/docs/sqlglot/dialects/tsql.html +++ b/docs/sqlglot/dialects/tsql.html @@ -94,7 +94,7 @@
    3import re 4import typing as t 5 - 6from sqlglot import exp, generator, parser, tokens + 6from sqlglot import exp, generator, parser, tokens, transforms 7from sqlglot.dialects.dialect import ( 8 Dialect, 9 max_or_greatest, @@ -554,52 +554,53 @@ 463 exp.DateDiff: generate_date_delta_with_unit_sql, 464 exp.CurrentDate: rename_func("GETDATE"), 465 exp.CurrentTimestamp: rename_func("GETDATE"), -466 exp.If: rename_func("IIF"), -467 exp.NumberToStr: _format_sql, -468 exp.TimeToStr: _format_sql, -469 exp.GroupConcat: _string_agg_sql, -470 exp.Max: max_or_greatest, -471 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), -472 exp.Min: min_or_least, +466 exp.GroupConcat: _string_agg_sql, +467 exp.If: rename_func("IIF"), +468 exp.Max: max_or_greatest, +469 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), +470 exp.Min: min_or_least, +471 exp.NumberToStr: _format_sql, +472 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 473 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 474 exp.SHA2: lambda self, e: self.func( 475 "HASHBYTES", exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), e.this 476 ), -477 } -478 -479 TRANSFORMS.pop(exp.ReturnsProperty) -480 -481 PROPERTIES_LOCATION = { -482 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -483 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -484 } -485 -486 LIMIT_FETCH = "FETCH" -487 -488 def offset_sql(self, expression: exp.Offset) -> str: -489 return f"{super().offset_sql(expression)} ROWS" -490 -491 def systemtime_sql(self, expression: exp.SystemTime) -> str: -492 kind = expression.args["kind"] -493 if kind == "ALL": -494 return "FOR SYSTEM_TIME ALL" -495 -496 start = self.sql(expression, "this") -497 if kind == "AS OF": -498 return f"FOR SYSTEM_TIME AS OF {start}" -499 -500 end = self.sql(expression, "expression") -501 if kind == "FROM": -502 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -503 if kind == "BETWEEN": -504 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" -505 -506 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -507 -508 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -509 table = expression.args.get("table") -510 table = f"{table} " if table else "" -511 return f"RETURNS {table}{self.sql(expression, 'this')}" +477 exp.TimeToStr: _format_sql, +478 } +479 +480 TRANSFORMS.pop(exp.ReturnsProperty) +481 +482 PROPERTIES_LOCATION = { +483 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +484 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +485 } +486 +487 LIMIT_FETCH = "FETCH" +488 +489 def offset_sql(self, expression: exp.Offset) -> str: +490 return f"{super().offset_sql(expression)} ROWS" +491 +492 def systemtime_sql(self, expression: exp.SystemTime) -> str: +493 kind = expression.args["kind"] +494 if kind == "ALL": +495 return "FOR SYSTEM_TIME ALL" +496 +497 start = self.sql(expression, "this") +498 if kind == "AS OF": +499 return f"FOR SYSTEM_TIME AS OF {start}" +500 +501 end = self.sql(expression, "expression") +502 if kind == "FROM": +503 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +504 if kind == "BETWEEN": +505 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +506 +507 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +508 +509 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +510 table = expression.args.get("table") +511 table = f"{table} " if table else "" +512 return f"RETURNS {table}{self.sql(expression, 'this')}"
    @@ -951,52 +952,53 @@ 464 exp.DateDiff: generate_date_delta_with_unit_sql, 465 exp.CurrentDate: rename_func("GETDATE"), 466 exp.CurrentTimestamp: rename_func("GETDATE"), -467 exp.If: rename_func("IIF"), -468 exp.NumberToStr: _format_sql, -469 exp.TimeToStr: _format_sql, -470 exp.GroupConcat: _string_agg_sql, -471 exp.Max: max_or_greatest, -472 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), -473 exp.Min: min_or_least, +467 exp.GroupConcat: _string_agg_sql, +468 exp.If: rename_func("IIF"), +469 exp.Max: max_or_greatest, +470 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), +471 exp.Min: min_or_least, +472 exp.NumberToStr: _format_sql, +473 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 474 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 475 exp.SHA2: lambda self, e: self.func( 476 "HASHBYTES", exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), e.this 477 ), -478 } -479 -480 TRANSFORMS.pop(exp.ReturnsProperty) -481 -482 PROPERTIES_LOCATION = { -483 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -484 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -485 } -486 -487 LIMIT_FETCH = "FETCH" -488 -489 def offset_sql(self, expression: exp.Offset) -> str: -490 return f"{super().offset_sql(expression)} ROWS" -491 -492 def systemtime_sql(self, expression: exp.SystemTime) -> str: -493 kind = expression.args["kind"] -494 if kind == "ALL": -495 return "FOR SYSTEM_TIME ALL" -496 -497 start = self.sql(expression, "this") -498 if kind == "AS OF": -499 return f"FOR SYSTEM_TIME AS OF {start}" -500 -501 end = self.sql(expression, "expression") -502 if kind == "FROM": -503 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -504 if kind == "BETWEEN": -505 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" -506 -507 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -508 -509 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -510 table = expression.args.get("table") -511 table = f"{table} " if table else "" -512 return f"RETURNS {table}{self.sql(expression, 'this')}" +478 exp.TimeToStr: _format_sql, +479 } +480 +481 TRANSFORMS.pop(exp.ReturnsProperty) +482 +483 PROPERTIES_LOCATION = { +484 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +485 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +486 } +487 +488 LIMIT_FETCH = "FETCH" +489 +490 def offset_sql(self, expression: exp.Offset) -> str: +491 return f"{super().offset_sql(expression)} ROWS" +492 +493 def systemtime_sql(self, expression: exp.SystemTime) -> str: +494 kind = expression.args["kind"] +495 if kind == "ALL": +496 return "FOR SYSTEM_TIME ALL" +497 +498 start = self.sql(expression, "this") +499 if kind == "AS OF": +500 return f"FOR SYSTEM_TIME AS OF {start}" +501 +502 end = self.sql(expression, "expression") +503 if kind == "FROM": +504 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +505 if kind == "BETWEEN": +506 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +507 +508 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +509 +510 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +511 table = expression.args.get("table") +512 table = f"{table} " if table else "" +513 return f"RETURNS {table}{self.sql(expression, 'this')}" @@ -1318,52 +1320,53 @@ Default: "nulls_are_small" 464 exp.DateDiff: generate_date_delta_with_unit_sql, 465 exp.CurrentDate: rename_func("GETDATE"), 466 exp.CurrentTimestamp: rename_func("GETDATE"), -467 exp.If: rename_func("IIF"), -468 exp.NumberToStr: _format_sql, -469 exp.TimeToStr: _format_sql, -470 exp.GroupConcat: _string_agg_sql, -471 exp.Max: max_or_greatest, -472 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), -473 exp.Min: min_or_least, +467 exp.GroupConcat: _string_agg_sql, +468 exp.If: rename_func("IIF"), +469 exp.Max: max_or_greatest, +470 exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), +471 exp.Min: min_or_least, +472 exp.NumberToStr: _format_sql, +473 exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), 474 exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), 475 exp.SHA2: lambda self, e: self.func( 476 "HASHBYTES", exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), e.this 477 ), -478 } -479 -480 TRANSFORMS.pop(exp.ReturnsProperty) -481 -482 PROPERTIES_LOCATION = { -483 **generator.Generator.PROPERTIES_LOCATION, # type: ignore -484 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, -485 } -486 -487 LIMIT_FETCH = "FETCH" -488 -489 def offset_sql(self, expression: exp.Offset) -> str: -490 return f"{super().offset_sql(expression)} ROWS" -491 -492 def systemtime_sql(self, expression: exp.SystemTime) -> str: -493 kind = expression.args["kind"] -494 if kind == "ALL": -495 return "FOR SYSTEM_TIME ALL" -496 -497 start = self.sql(expression, "this") -498 if kind == "AS OF": -499 return f"FOR SYSTEM_TIME AS OF {start}" -500 -501 end = self.sql(expression, "expression") -502 if kind == "FROM": -503 return f"FOR SYSTEM_TIME FROM {start} TO {end}" -504 if kind == "BETWEEN": -505 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" -506 -507 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" -508 -509 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: -510 table = expression.args.get("table") -511 table = f"{table} " if table else "" -512 return f"RETURNS {table}{self.sql(expression, 'this')}" +478 exp.TimeToStr: _format_sql, +479 } +480 +481 TRANSFORMS.pop(exp.ReturnsProperty) +482 +483 PROPERTIES_LOCATION = { +484 **generator.Generator.PROPERTIES_LOCATION, # type: ignore +485 exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, +486 } +487 +488 LIMIT_FETCH = "FETCH" +489 +490 def offset_sql(self, expression: exp.Offset) -> str: +491 return f"{super().offset_sql(expression)} ROWS" +492 +493 def systemtime_sql(self, expression: exp.SystemTime) -> str: +494 kind = expression.args["kind"] +495 if kind == "ALL": +496 return "FOR SYSTEM_TIME ALL" +497 +498 start = self.sql(expression, "this") +499 if kind == "AS OF": +500 return f"FOR SYSTEM_TIME AS OF {start}" +501 +502 end = self.sql(expression, "expression") +503 if kind == "FROM": +504 return f"FOR SYSTEM_TIME FROM {start} TO {end}" +505 if kind == "BETWEEN": +506 return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}" +507 +508 return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})" +509 +510 def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str: +511 table = expression.args.get("table") +512 table = f"{table} " if table else "" +513 return f"RETURNS {table}{self.sql(expression, 'this')}" @@ -1422,8 +1425,8 @@ Default: True -
    489        def offset_sql(self, expression: exp.Offset) -> str:
    -490            return f"{super().offset_sql(expression)} ROWS"
    +            
    490        def offset_sql(self, expression: exp.Offset) -> str:
    +491            return f"{super().offset_sql(expression)} ROWS"
     
    @@ -1441,22 +1444,22 @@ Default: True
    -
    492        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    -493            kind = expression.args["kind"]
    -494            if kind == "ALL":
    -495                return "FOR SYSTEM_TIME ALL"
    -496
    -497            start = self.sql(expression, "this")
    -498            if kind == "AS OF":
    -499                return f"FOR SYSTEM_TIME AS OF {start}"
    -500
    -501            end = self.sql(expression, "expression")
    -502            if kind == "FROM":
    -503                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    -504            if kind == "BETWEEN":
    -505                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    -506
    -507            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
    +            
    493        def systemtime_sql(self, expression: exp.SystemTime) -> str:
    +494            kind = expression.args["kind"]
    +495            if kind == "ALL":
    +496                return "FOR SYSTEM_TIME ALL"
    +497
    +498            start = self.sql(expression, "this")
    +499            if kind == "AS OF":
    +500                return f"FOR SYSTEM_TIME AS OF {start}"
    +501
    +502            end = self.sql(expression, "expression")
    +503            if kind == "FROM":
    +504                return f"FOR SYSTEM_TIME FROM {start} TO {end}"
    +505            if kind == "BETWEEN":
    +506                return f"FOR SYSTEM_TIME BETWEEN {start} AND {end}"
    +507
    +508            return f"FOR SYSTEM_TIME CONTAINED IN ({start}, {end})"
     
    @@ -1474,10 +1477,10 @@ Default: True
    -
    509        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    -510            table = expression.args.get("table")
    -511            table = f"{table} " if table else ""
    -512            return f"RETURNS {table}{self.sql(expression, 'this')}"
    +            
    510        def returnsproperty_sql(self, expression: exp.ReturnsProperty) -> str:
    +511            table = expression.args.get("table")
    +512            table = f"{table} " if table else ""
    +513            return f"RETURNS {table}{self.sql(expression, 'this')}"
     
    @@ -1607,7 +1610,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1616,6 +1619,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/executor/python.html b/docs/sqlglot/executor/python.html index 176df2e..a93e0b6 100644 --- a/docs/sqlglot/executor/python.html +++ b/docs/sqlglot/executor/python.html @@ -1778,7 +1778,7 @@ Default: True
    where_sql
    window_sql
    partition_by_sql
    -
    window_spec_sql
    +
    windowspec_sql
    withingroup_sql
    between_sql
    bracket_sql
    @@ -1787,6 +1787,7 @@ Default: True
    exists_sql
    case_sql
    constraint_sql
    +
    nextvaluefor_sql
    extract_sql
    trim_sql
    concat_sql
    diff --git a/docs/sqlglot/expressions.html b/docs/sqlglot/expressions.html index a4b82fc..e4c3a7b 100644 --- a/docs/sqlglot/expressions.html +++ b/docs/sqlglot/expressions.html @@ -164,6 +164,27 @@
  • not_
  • +
  • + isin +
  • +
  • + between +
  • +
  • + like +
  • +
  • + ilike +
  • +
  • + eq +
  • +
  • + neq +
  • +
  • + rlike +
  • @@ -2075,6 +2096,12 @@
  • Case
  • @@ -2947,6 +2974,12 @@
    + +
  • + NextValueFor +
      +
    +
  • maybe_parse @@ -3739,7 +3772,7 @@ SQL expressions, such as sqlglot.expressions.select< 650 651 652class Condition(Expression): - 653 def and_(self, *expressions, dialect=None, **opts): + 653 def and_(self, *expressions, dialect=None, copy=True, **opts): 654 """ 655 AND this condition with one or multiple expressions. 656 @@ -3751,4567 +3784,4713 @@ SQL expressions, such as sqlglot.expressions.select< 662 *expressions (str | Expression): the SQL code strings to parse. 663 If an `Expression` instance is passed, it will be used as-is. 664 dialect (str): the dialect used to parse the input expression. - 665 opts (kwargs): other options to use to parse the input expressions. - 666 - 667 Returns: - 668 And: the new condition. - 669 """ - 670 return and_(self, *expressions, dialect=dialect, **opts) - 671 - 672 def or_(self, *expressions, dialect=None, **opts): - 673 """ - 674 OR this condition with one or multiple expressions. - 675 - 676 Example: - 677 >>> condition("x=1").or_("y=1").sql() - 678 'x = 1 OR y = 1' - 679 - 680 Args: - 681 *expressions (str | Expression): the SQL code strings to parse. - 682 If an `Expression` instance is passed, it will be used as-is. - 683 dialect (str): the dialect used to parse the input expression. - 684 opts (kwargs): other options to use to parse the input expressions. - 685 - 686 Returns: - 687 Or: the new condition. - 688 """ - 689 return or_(self, *expressions, dialect=dialect, **opts) - 690 - 691 def not_(self): - 692 """ - 693 Wrap this condition with NOT. - 694 - 695 Example: - 696 >>> condition("x=1").not_().sql() - 697 'NOT x = 1' - 698 - 699 Returns: - 700 Not: the new condition. - 701 """ - 702 return not_(self) + 665 copy (bool): whether or not to copy the involved expressions (only applies to Expressions). + 666 opts (kwargs): other options to use to parse the input expressions. + 667 + 668 Returns: + 669 And: the new condition. + 670 """ + 671 return and_(self, *expressions, dialect=dialect, copy=copy, **opts) + 672 + 673 def or_(self, *expressions, dialect=None, copy=True, **opts): + 674 """ + 675 OR this condition with one or multiple expressions. + 676 + 677 Example: + 678 >>> condition("x=1").or_("y=1").sql() + 679 'x = 1 OR y = 1' + 680 + 681 Args: + 682 *expressions (str | Expression): the SQL code strings to parse. + 683 If an `Expression` instance is passed, it will be used as-is. + 684 dialect (str): the dialect used to parse the input expression. + 685 copy (bool): whether or not to copy the involved expressions (only applies to Expressions). + 686 opts (kwargs): other options to use to parse the input expressions. + 687 + 688 Returns: + 689 Or: the new condition. + 690 """ + 691 return or_(self, *expressions, dialect=dialect, copy=copy, **opts) + 692 + 693 def not_(self, copy=True): + 694 """ + 695 Wrap this condition with NOT. + 696 + 697 Example: + 698 >>> condition("x=1").not_().sql() + 699 'NOT x = 1' + 700 + 701 Args: + 702 copy (bool): whether or not to copy this object. 703 - 704 - 705class Predicate(Condition): - 706 """Relationships like x = y, x > 1, x >= y.""" - 707 + 704 Returns: + 705 Not: the new condition. + 706 """ + 707 return not_(self, copy=copy) 708 - 709class DerivedTable(Expression): - 710 @property - 711 def alias_column_names(self): - 712 table_alias = self.args.get("alias") - 713 if not table_alias: - 714 return [] - 715 column_list = table_alias.assert_is(TableAlias).args.get("columns") or [] - 716 return [c.name for c in column_list] - 717 - 718 @property - 719 def selects(self): - 720 alias = self.args.get("alias") - 721 - 722 if alias: - 723 return alias.columns - 724 return [] - 725 - 726 @property - 727 def named_selects(self): - 728 return [select.output_name for select in self.selects] - 729 - 730 - 731class Unionable(Expression): - 732 def union(self, expression, distinct=True, dialect=None, **opts): - 733 """ - 734 Builds a UNION expression. - 735 - 736 Example: - 737 >>> import sqlglot - 738 >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql() - 739 'SELECT * FROM foo UNION SELECT * FROM bla' - 740 - 741 Args: - 742 expression (str | Expression): the SQL code string. - 743 If an `Expression` instance is passed, it will be used as-is. - 744 distinct (bool): set the DISTINCT flag if and only if this is true. - 745 dialect (str): the dialect used to parse the input expression. - 746 opts (kwargs): other options to use to parse the input expressions. - 747 Returns: - 748 Union: the Union expression. - 749 """ - 750 return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) + 709 def _binop(self, klass: t.Type[E], other: ExpOrStr, reverse=False) -> E: + 710 this = self.copy() + 711 other = convert(other, copy=True) + 712 if not isinstance(this, klass) and not isinstance(other, klass): + 713 this = _wrap(this, Binary) + 714 other = _wrap(other, Binary) + 715 if reverse: + 716 return klass(this=other, expression=this) + 717 return klass(this=this, expression=other) + 718 + 719 def __getitem__(self, other: ExpOrStr | t.Tuple[ExpOrStr]): + 720 return Bracket( + 721 this=self.copy(), expressions=[convert(e, copy=True) for e in ensure_list(other)] + 722 ) + 723 + 724 def isin( + 725 self, *expressions: t.Any, query: t.Optional[ExpOrStr] = None, copy=True, **opts + 726 ) -> In: + 727 return In( + 728 this=_maybe_copy(self, copy), + 729 expressions=[convert(e, copy=copy) for e in expressions], + 730 query=maybe_parse(query, copy=copy, **opts) if query else None, + 731 ) + 732 + 733 def between(self, low: t.Any, high: t.Any, copy=True, **opts) -> Between: + 734 return Between( + 735 this=_maybe_copy(self, copy), + 736 low=convert(low, copy=copy, **opts), + 737 high=convert(high, copy=copy, **opts), + 738 ) + 739 + 740 def like(self, other: ExpOrStr) -> Like: + 741 return self._binop(Like, other) + 742 + 743 def ilike(self, other: ExpOrStr) -> ILike: + 744 return self._binop(ILike, other) + 745 + 746 def eq(self, other: ExpOrStr) -> EQ: + 747 return self._binop(EQ, other) + 748 + 749 def neq(self, other: ExpOrStr) -> NEQ: + 750 return self._binop(NEQ, other) 751 - 752 def intersect(self, expression, distinct=True, dialect=None, **opts): - 753 """ - 754 Builds an INTERSECT expression. - 755 - 756 Example: - 757 >>> import sqlglot - 758 >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql() - 759 'SELECT * FROM foo INTERSECT SELECT * FROM bla' + 752 def rlike(self, other: ExpOrStr) -> RegexpLike: + 753 return self._binop(RegexpLike, other) + 754 + 755 def __lt__(self, other: ExpOrStr) -> LT: + 756 return self._binop(LT, other) + 757 + 758 def __le__(self, other: ExpOrStr) -> LTE: + 759 return self._binop(LTE, other) 760 - 761 Args: - 762 expression (str | Expression): the SQL code string. - 763 If an `Expression` instance is passed, it will be used as-is. - 764 distinct (bool): set the DISTINCT flag if and only if this is true. - 765 dialect (str): the dialect used to parse the input expression. - 766 opts (kwargs): other options to use to parse the input expressions. - 767 Returns: - 768 Intersect: the Intersect expression - 769 """ - 770 return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) - 771 - 772 def except_(self, expression, distinct=True, dialect=None, **opts): - 773 """ - 774 Builds an EXCEPT expression. + 761 def __gt__(self, other: ExpOrStr) -> GT: + 762 return self._binop(GT, other) + 763 + 764 def __ge__(self, other: ExpOrStr) -> GTE: + 765 return self._binop(GTE, other) + 766 + 767 def __add__(self, other: ExpOrStr) -> Add: + 768 return self._binop(Add, other) + 769 + 770 def __radd__(self, other: ExpOrStr) -> Add: + 771 return self._binop(Add, other, reverse=True) + 772 + 773 def __sub__(self, other: ExpOrStr) -> Sub: + 774 return self._binop(Sub, other) 775 - 776 Example: - 777 >>> import sqlglot - 778 >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql() - 779 'SELECT * FROM foo EXCEPT SELECT * FROM bla' - 780 - 781 Args: - 782 expression (str | Expression): the SQL code string. - 783 If an `Expression` instance is passed, it will be used as-is. - 784 distinct (bool): set the DISTINCT flag if and only if this is true. - 785 dialect (str): the dialect used to parse the input expression. - 786 opts (kwargs): other options to use to parse the input expressions. - 787 Returns: - 788 Except: the Except expression - 789 """ - 790 return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) - 791 - 792 - 793class UDTF(DerivedTable, Unionable): - 794 pass - 795 + 776 def __rsub__(self, other: ExpOrStr) -> Sub: + 777 return self._binop(Sub, other, reverse=True) + 778 + 779 def __mul__(self, other: ExpOrStr) -> Mul: + 780 return self._binop(Mul, other) + 781 + 782 def __rmul__(self, other: ExpOrStr) -> Mul: + 783 return self._binop(Mul, other, reverse=True) + 784 + 785 def __truediv__(self, other: ExpOrStr) -> Div: + 786 return self._binop(Div, other) + 787 + 788 def __rtruediv__(self, other: ExpOrStr) -> Div: + 789 return self._binop(Div, other, reverse=True) + 790 + 791 def __floordiv__(self, other: ExpOrStr) -> IntDiv: + 792 return self._binop(IntDiv, other) + 793 + 794 def __rfloordiv__(self, other: ExpOrStr) -> IntDiv: + 795 return self._binop(IntDiv, other, reverse=True) 796 - 797class Cache(Expression): - 798 arg_types = { - 799 "with": False, - 800 "this": True, - 801 "lazy": False, - 802 "options": False, - 803 "expression": False, - 804 } + 797 def __mod__(self, other: ExpOrStr) -> Mod: + 798 return self._binop(Mod, other) + 799 + 800 def __rmod__(self, other: ExpOrStr) -> Mod: + 801 return self._binop(Mod, other, reverse=True) + 802 + 803 def __pow__(self, other: ExpOrStr) -> Pow: + 804 return self._binop(Pow, other) 805 - 806 - 807class Uncache(Expression): - 808 arg_types = {"this": True, "exists": False} - 809 - 810 - 811class Create(Expression): - 812 arg_types = { - 813 "with": False, - 814 "this": True, - 815 "kind": True, - 816 "expression": False, - 817 "exists": False, - 818 "properties": False, - 819 "replace": False, - 820 "unique": False, - 821 "indexes": False, - 822 "no_schema_binding": False, - 823 "begin": False, - 824 } - 825 + 806 def __rpow__(self, other: ExpOrStr) -> Pow: + 807 return self._binop(Pow, other, reverse=True) + 808 + 809 def __and__(self, other: ExpOrStr) -> And: + 810 return self._binop(And, other) + 811 + 812 def __rand__(self, other: ExpOrStr) -> And: + 813 return self._binop(And, other, reverse=True) + 814 + 815 def __or__(self, other: ExpOrStr) -> Or: + 816 return self._binop(Or, other) + 817 + 818 def __ror__(self, other: ExpOrStr) -> Or: + 819 return self._binop(Or, other, reverse=True) + 820 + 821 def __neg__(self) -> Neg: + 822 return Neg(this=_wrap(self.copy(), Binary)) + 823 + 824 def __invert__(self) -> Not: + 825 return not_(self.copy()) 826 - 827class Describe(Expression): - 828 arg_types = {"this": True, "kind": False} - 829 + 827 + 828class Predicate(Condition): + 829 """Relationships like x = y, x > 1, x >= y.""" 830 - 831class Pragma(Expression): - 832 pass - 833 - 834 - 835class Set(Expression): - 836 arg_types = {"expressions": False} - 837 - 838 - 839class SetItem(Expression): - 840 arg_types = { - 841 "this": False, - 842 "expressions": False, - 843 "kind": False, - 844 "collate": False, # MySQL SET NAMES statement - 845 "global": False, - 846 } - 847 + 831 + 832class DerivedTable(Expression): + 833 @property + 834 def alias_column_names(self): + 835 table_alias = self.args.get("alias") + 836 if not table_alias: + 837 return [] + 838 column_list = table_alias.assert_is(TableAlias).args.get("columns") or [] + 839 return [c.name for c in column_list] + 840 + 841 @property + 842 def selects(self): + 843 alias = self.args.get("alias") + 844 + 845 if alias: + 846 return alias.columns + 847 return [] 848 - 849class Show(Expression): - 850 arg_types = { - 851 "this": True, - 852 "target": False, - 853 "offset": False, - 854 "limit": False, - 855 "like": False, - 856 "where": False, - 857 "db": False, - 858 "full": False, - 859 "mutex": False, - 860 "query": False, - 861 "channel": False, - 862 "global": False, - 863 "log": False, - 864 "position": False, - 865 "types": False, - 866 } - 867 - 868 - 869class UserDefinedFunction(Expression): - 870 arg_types = {"this": True, "expressions": False, "wrapped": False} - 871 - 872 - 873class CharacterSet(Expression): - 874 arg_types = {"this": True, "default": False} - 875 - 876 - 877class With(Expression): - 878 arg_types = {"expressions": True, "recursive": False} - 879 - 880 @property - 881 def recursive(self) -> bool: - 882 return bool(self.args.get("recursive")) + 849 @property + 850 def named_selects(self): + 851 return [select.output_name for select in self.selects] + 852 + 853 + 854class Unionable(Expression): + 855 def union(self, expression, distinct=True, dialect=None, **opts): + 856 """ + 857 Builds a UNION expression. + 858 + 859 Example: + 860 >>> import sqlglot + 861 >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql() + 862 'SELECT * FROM foo UNION SELECT * FROM bla' + 863 + 864 Args: + 865 expression (str | Expression): the SQL code string. + 866 If an `Expression` instance is passed, it will be used as-is. + 867 distinct (bool): set the DISTINCT flag if and only if this is true. + 868 dialect (str): the dialect used to parse the input expression. + 869 opts (kwargs): other options to use to parse the input expressions. + 870 Returns: + 871 Union: the Union expression. + 872 """ + 873 return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) + 874 + 875 def intersect(self, expression, distinct=True, dialect=None, **opts): + 876 """ + 877 Builds an INTERSECT expression. + 878 + 879 Example: + 880 >>> import sqlglot + 881 >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql() + 882 'SELECT * FROM foo INTERSECT SELECT * FROM bla' 883 - 884 - 885class WithinGroup(Expression): - 886 arg_types = {"this": True, "expression": False} - 887 - 888 - 889class CTE(DerivedTable): - 890 arg_types = {"this": True, "alias": True} - 891 - 892 - 893class TableAlias(Expression): - 894 arg_types = {"this": False, "columns": False} - 895 - 896 @property - 897 def columns(self): - 898 return self.args.get("columns") or [] - 899 - 900 - 901class BitString(Condition): - 902 pass + 884 Args: + 885 expression (str | Expression): the SQL code string. + 886 If an `Expression` instance is passed, it will be used as-is. + 887 distinct (bool): set the DISTINCT flag if and only if this is true. + 888 dialect (str): the dialect used to parse the input expression. + 889 opts (kwargs): other options to use to parse the input expressions. + 890 Returns: + 891 Intersect: the Intersect expression + 892 """ + 893 return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) + 894 + 895 def except_(self, expression, distinct=True, dialect=None, **opts): + 896 """ + 897 Builds an EXCEPT expression. + 898 + 899 Example: + 900 >>> import sqlglot + 901 >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql() + 902 'SELECT * FROM foo EXCEPT SELECT * FROM bla' 903 - 904 - 905class HexString(Condition): - 906 pass - 907 - 908 - 909class ByteString(Condition): - 910 pass - 911 - 912 - 913class Column(Condition): - 914 arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False} + 904 Args: + 905 expression (str | Expression): the SQL code string. + 906 If an `Expression` instance is passed, it will be used as-is. + 907 distinct (bool): set the DISTINCT flag if and only if this is true. + 908 dialect (str): the dialect used to parse the input expression. + 909 opts (kwargs): other options to use to parse the input expressions. + 910 Returns: + 911 Except: the Except expression + 912 """ + 913 return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts) + 914 915 - 916 @property - 917 def table(self) -> str: - 918 return self.text("table") + 916class UDTF(DerivedTable, Unionable): + 917 pass + 918 919 - 920 @property - 921 def db(self) -> str: - 922 return self.text("db") - 923 - 924 @property - 925 def catalog(self) -> str: - 926 return self.text("catalog") - 927 - 928 @property - 929 def output_name(self) -> str: - 930 return self.name - 931 - 932 @property - 933 def parts(self) -> t.List[Identifier]: - 934 """Return the parts of a column in order catalog, db, table, name.""" - 935 return [part for part in reversed(list(self.args.values())) if part] - 936 - 937 def to_dot(self) -> Dot: - 938 """Converts the column into a dot expression.""" - 939 parts = self.parts - 940 parent = self.parent - 941 - 942 while parent: - 943 if isinstance(parent, Dot): - 944 parts.append(parent.expression) - 945 parent = parent.parent - 946 - 947 return Dot.build(parts) + 920class Cache(Expression): + 921 arg_types = { + 922 "with": False, + 923 "this": True, + 924 "lazy": False, + 925 "options": False, + 926 "expression": False, + 927 } + 928 + 929 + 930class Uncache(Expression): + 931 arg_types = {"this": True, "exists": False} + 932 + 933 + 934class Create(Expression): + 935 arg_types = { + 936 "with": False, + 937 "this": True, + 938 "kind": True, + 939 "expression": False, + 940 "exists": False, + 941 "properties": False, + 942 "replace": False, + 943 "unique": False, + 944 "indexes": False, + 945 "no_schema_binding": False, + 946 "begin": False, + 947 } 948 949 - 950class ColumnPosition(Expression): - 951 arg_types = {"this": False, "position": True} + 950class Describe(Expression): + 951 arg_types = {"this": True, "kind": False} 952 953 - 954class ColumnDef(Expression): - 955 arg_types = { - 956 "this": True, - 957 "kind": False, - 958 "constraints": False, - 959 "exists": False, - 960 "position": False, - 961 } - 962 - 963 - 964class AlterColumn(Expression): - 965 arg_types = { - 966 "this": True, - 967 "dtype": False, - 968 "collate": False, - 969 "using": False, - 970 "default": False, - 971 "drop": False, - 972 } - 973 - 974 - 975class RenameTable(Expression): - 976 pass - 977 - 978 - 979class SetTag(Expression): - 980 arg_types = {"expressions": True, "unset": False} - 981 - 982 - 983class Comment(Expression): - 984 arg_types = {"this": True, "kind": True, "expression": True, "exists": False} - 985 - 986 - 987class ColumnConstraint(Expression): - 988 arg_types = {"this": False, "kind": True} - 989 + 954class Pragma(Expression): + 955 pass + 956 + 957 + 958class Set(Expression): + 959 arg_types = {"expressions": False} + 960 + 961 + 962class SetItem(Expression): + 963 arg_types = { + 964 "this": False, + 965 "expressions": False, + 966 "kind": False, + 967 "collate": False, # MySQL SET NAMES statement + 968 "global": False, + 969 } + 970 + 971 + 972class Show(Expression): + 973 arg_types = { + 974 "this": True, + 975 "target": False, + 976 "offset": False, + 977 "limit": False, + 978 "like": False, + 979 "where": False, + 980 "db": False, + 981 "full": False, + 982 "mutex": False, + 983 "query": False, + 984 "channel": False, + 985 "global": False, + 986 "log": False, + 987 "position": False, + 988 "types": False, + 989 } 990 - 991class ColumnConstraintKind(Expression): - 992 pass - 993 + 991 + 992class UserDefinedFunction(Expression): + 993 arg_types = {"this": True, "expressions": False, "wrapped": False} 994 - 995class AutoIncrementColumnConstraint(ColumnConstraintKind): - 996 pass - 997 + 995 + 996class CharacterSet(Expression): + 997 arg_types = {"this": True, "default": False} 998 - 999class CaseSpecificColumnConstraint(ColumnConstraintKind): -1000 arg_types = {"not_": True} -1001 + 999 +1000class With(Expression): +1001 arg_types = {"expressions": True, "recursive": False} 1002 -1003class CharacterSetColumnConstraint(ColumnConstraintKind): -1004 arg_types = {"this": True} -1005 +1003 @property +1004 def recursive(self) -> bool: +1005 return bool(self.args.get("recursive")) 1006 -1007class CheckColumnConstraint(ColumnConstraintKind): -1008 pass -1009 +1007 +1008class WithinGroup(Expression): +1009 arg_types = {"this": True, "expression": False} 1010 -1011class CollateColumnConstraint(ColumnConstraintKind): -1012 pass -1013 +1011 +1012class CTE(DerivedTable): +1013 arg_types = {"this": True, "alias": True} 1014 -1015class CommentColumnConstraint(ColumnConstraintKind): -1016 pass -1017 +1015 +1016class TableAlias(Expression): +1017 arg_types = {"this": False, "columns": False} 1018 -1019class CompressColumnConstraint(ColumnConstraintKind): -1020 pass -1021 +1019 @property +1020 def columns(self): +1021 return self.args.get("columns") or [] 1022 -1023class DateFormatColumnConstraint(ColumnConstraintKind): -1024 arg_types = {"this": True} -1025 +1023 +1024class BitString(Condition): +1025 pass 1026 -1027class DefaultColumnConstraint(ColumnConstraintKind): -1028 pass -1029 +1027 +1028class HexString(Condition): +1029 pass 1030 -1031class EncodeColumnConstraint(ColumnConstraintKind): -1032 pass -1033 +1031 +1032class ByteString(Condition): +1033 pass 1034 -1035class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind): -1036 # this: True -> ALWAYS, this: False -> BY DEFAULT -1037 arg_types = { -1038 "this": False, -1039 "start": False, -1040 "increment": False, -1041 "minvalue": False, -1042 "maxvalue": False, -1043 "cycle": False, -1044 } -1045 +1035 +1036class Column(Condition): +1037 arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False} +1038 +1039 @property +1040 def table(self) -> str: +1041 return self.text("table") +1042 +1043 @property +1044 def db(self) -> str: +1045 return self.text("db") 1046 -1047class InlineLengthColumnConstraint(ColumnConstraintKind): -1048 pass -1049 +1047 @property +1048 def catalog(self) -> str: +1049 return self.text("catalog") 1050 -1051class NotNullColumnConstraint(ColumnConstraintKind): -1052 arg_types = {"allow_null": False} -1053 +1051 @property +1052 def output_name(self) -> str: +1053 return self.name 1054 -1055# https://dev.mysql.com/doc/refman/5.7/en/timestamp-initialization.html -1056class OnUpdateColumnConstraint(ColumnConstraintKind): -1057 pass -1058 +1055 @property +1056 def parts(self) -> t.List[Identifier]: +1057 """Return the parts of a column in order catalog, db, table, name.""" +1058 return [part for part in reversed(list(self.args.values())) if part] 1059 -1060class PrimaryKeyColumnConstraint(ColumnConstraintKind): -1061 arg_types = {"desc": False} -1062 -1063 -1064class TitleColumnConstraint(ColumnConstraintKind): -1065 pass -1066 -1067 -1068class UniqueColumnConstraint(ColumnConstraintKind): -1069 arg_types: t.Dict[str, t.Any] = {} -1070 +1060 def to_dot(self) -> Dot: +1061 """Converts the column into a dot expression.""" +1062 parts = self.parts +1063 parent = self.parent +1064 +1065 while parent: +1066 if isinstance(parent, Dot): +1067 parts.append(parent.expression) +1068 parent = parent.parent +1069 +1070 return Dot.build(parts) 1071 -1072class UppercaseColumnConstraint(ColumnConstraintKind): -1073 arg_types: t.Dict[str, t.Any] = {} -1074 +1072 +1073class ColumnPosition(Expression): +1074 arg_types = {"this": False, "position": True} 1075 -1076class PathColumnConstraint(ColumnConstraintKind): -1077 pass -1078 -1079 -1080class Constraint(Expression): -1081 arg_types = {"this": True, "expressions": True} -1082 -1083 -1084class Delete(Expression): -1085 arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} +1076 +1077class ColumnDef(Expression): +1078 arg_types = { +1079 "this": True, +1080 "kind": False, +1081 "constraints": False, +1082 "exists": False, +1083 "position": False, +1084 } +1085 1086 -1087 def delete( -1088 self, -1089 table: ExpOrStr, -1090 dialect: DialectType = None, -1091 copy: bool = True, -1092 **opts, -1093 ) -> Delete: -1094 """ -1095 Create a DELETE expression or replace the table on an existing DELETE expression. +1087class AlterColumn(Expression): +1088 arg_types = { +1089 "this": True, +1090 "dtype": False, +1091 "collate": False, +1092 "using": False, +1093 "default": False, +1094 "drop": False, +1095 } 1096 -1097 Example: -1098 >>> delete("tbl").sql() -1099 'DELETE FROM tbl' +1097 +1098class RenameTable(Expression): +1099 pass 1100 -1101 Args: -1102 table: the table from which to delete. -1103 dialect: the dialect used to parse the input expression. -1104 copy: if `False`, modify this expression instance in-place. -1105 opts: other options to use to parse the input expressions. -1106 -1107 Returns: -1108 Delete: the modified expression. -1109 """ -1110 return _apply_builder( -1111 expression=table, -1112 instance=self, -1113 arg="this", -1114 dialect=dialect, -1115 into=Table, -1116 copy=copy, -1117 **opts, -1118 ) -1119 -1120 def where( -1121 self, -1122 *expressions: ExpOrStr, -1123 append: bool = True, -1124 dialect: DialectType = None, -1125 copy: bool = True, -1126 **opts, -1127 ) -> Delete: -1128 """ -1129 Append to or set the WHERE expressions. -1130 -1131 Example: -1132 >>> delete("tbl").where("x = 'a' OR x < 'b'").sql() -1133 "DELETE FROM tbl WHERE x = 'a' OR x < 'b'" -1134 -1135 Args: -1136 *expressions: the SQL code strings to parse. -1137 If an `Expression` instance is passed, it will be used as-is. -1138 Multiple expressions are combined with an AND operator. -1139 append: if `True`, AND the new expressions to any existing expression. -1140 Otherwise, this resets the expression. -1141 dialect: the dialect used to parse the input expressions. -1142 copy: if `False`, modify this expression instance in-place. -1143 opts: other options to use to parse the input expressions. +1101 +1102class SetTag(Expression): +1103 arg_types = {"expressions": True, "unset": False} +1104 +1105 +1106class Comment(Expression): +1107 arg_types = {"this": True, "kind": True, "expression": True, "exists": False} +1108 +1109 +1110class ColumnConstraint(Expression): +1111 arg_types = {"this": False, "kind": True} +1112 +1113 +1114class ColumnConstraintKind(Expression): +1115 pass +1116 +1117 +1118class AutoIncrementColumnConstraint(ColumnConstraintKind): +1119 pass +1120 +1121 +1122class CaseSpecificColumnConstraint(ColumnConstraintKind): +1123 arg_types = {"not_": True} +1124 +1125 +1126class CharacterSetColumnConstraint(ColumnConstraintKind): +1127 arg_types = {"this": True} +1128 +1129 +1130class CheckColumnConstraint(ColumnConstraintKind): +1131 pass +1132 +1133 +1134class CollateColumnConstraint(ColumnConstraintKind): +1135 pass +1136 +1137 +1138class CommentColumnConstraint(ColumnConstraintKind): +1139 pass +1140 +1141 +1142class CompressColumnConstraint(ColumnConstraintKind): +1143 pass 1144 -1145 Returns: -1146 Delete: the modified expression. -1147 """ -1148 return _apply_conjunction_builder( -1149 *expressions, -1150 instance=self, -1151 arg="where", -1152 append=append, -1153 into=Where, -1154 dialect=dialect, -1155 copy=copy, -1156 **opts, -1157 ) -1158 -1159 def returning( -1160 self, -1161 expression: ExpOrStr, -1162 dialect: DialectType = None, -1163 copy: bool = True, -1164 **opts, -1165 ) -> Delete: -1166 """ -1167 Set the RETURNING expression. Not supported by all dialects. +1145 +1146class DateFormatColumnConstraint(ColumnConstraintKind): +1147 arg_types = {"this": True} +1148 +1149 +1150class DefaultColumnConstraint(ColumnConstraintKind): +1151 pass +1152 +1153 +1154class EncodeColumnConstraint(ColumnConstraintKind): +1155 pass +1156 +1157 +1158class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind): +1159 # this: True -> ALWAYS, this: False -> BY DEFAULT +1160 arg_types = { +1161 "this": False, +1162 "start": False, +1163 "increment": False, +1164 "minvalue": False, +1165 "maxvalue": False, +1166 "cycle": False, +1167 } 1168 -1169 Example: -1170 >>> delete("tbl").returning("*", dialect="postgres").sql() -1171 'DELETE FROM tbl RETURNING *' +1169 +1170class InlineLengthColumnConstraint(ColumnConstraintKind): +1171 pass 1172 -1173 Args: -1174 expression: the SQL code strings to parse. -1175 If an `Expression` instance is passed, it will be used as-is. -1176 dialect: the dialect used to parse the input expressions. -1177 copy: if `False`, modify this expression instance in-place. -1178 opts: other options to use to parse the input expressions. -1179 -1180 Returns: -1181 Delete: the modified expression. -1182 """ -1183 return _apply_builder( -1184 expression=expression, -1185 instance=self, -1186 arg="returning", -1187 prefix="RETURNING", -1188 dialect=dialect, -1189 copy=copy, -1190 into=Returning, -1191 **opts, -1192 ) +1173 +1174class NotNullColumnConstraint(ColumnConstraintKind): +1175 arg_types = {"allow_null": False} +1176 +1177 +1178# https://dev.mysql.com/doc/refman/5.7/en/timestamp-initialization.html +1179class OnUpdateColumnConstraint(ColumnConstraintKind): +1180 pass +1181 +1182 +1183class PrimaryKeyColumnConstraint(ColumnConstraintKind): +1184 arg_types = {"desc": False} +1185 +1186 +1187class TitleColumnConstraint(ColumnConstraintKind): +1188 pass +1189 +1190 +1191class UniqueColumnConstraint(ColumnConstraintKind): +1192 arg_types: t.Dict[str, t.Any] = {} 1193 1194 -1195class Drop(Expression): -1196 arg_types = { -1197 "this": False, -1198 "kind": False, -1199 "exists": False, -1200 "temporary": False, -1201 "materialized": False, -1202 "cascade": False, -1203 "constraints": False, -1204 "purge": False, -1205 } +1195class UppercaseColumnConstraint(ColumnConstraintKind): +1196 arg_types: t.Dict[str, t.Any] = {} +1197 +1198 +1199class PathColumnConstraint(ColumnConstraintKind): +1200 pass +1201 +1202 +1203class Constraint(Expression): +1204 arg_types = {"this": True, "expressions": True} +1205 1206 -1207 -1208class Filter(Expression): -1209 arg_types = {"this": True, "expression": True} -1210 -1211 -1212class Check(Expression): -1213 pass -1214 -1215 -1216class Directory(Expression): -1217 # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html -1218 arg_types = {"this": True, "local": False, "row_format": False} +1207class Delete(Expression): +1208 arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False} +1209 +1210 def delete( +1211 self, +1212 table: ExpOrStr, +1213 dialect: DialectType = None, +1214 copy: bool = True, +1215 **opts, +1216 ) -> Delete: +1217 """ +1218 Create a DELETE expression or replace the table on an existing DELETE expression. 1219 -1220 -1221class ForeignKey(Expression): -1222 arg_types = { -1223 "expressions": True, -1224 "reference": False, -1225 "delete": False, -1226 "update": False, -1227 } -1228 +1220 Example: +1221 >>> delete("tbl").sql() +1222 'DELETE FROM tbl' +1223 +1224 Args: +1225 table: the table from which to delete. +1226 dialect: the dialect used to parse the input expression. +1227 copy: if `False`, modify this expression instance in-place. +1228 opts: other options to use to parse the input expressions. 1229 -1230class PrimaryKey(Expression): -1231 arg_types = {"expressions": True, "options": False} -1232 -1233 -1234class Unique(Expression): -1235 arg_types = {"expressions": True} -1236 -1237 -1238# https://www.postgresql.org/docs/9.1/sql-selectinto.html -1239# https://docs.aws.amazon.com/redshift/latest/dg/r_SELECT_INTO.html#r_SELECT_INTO-examples -1240class Into(Expression): -1241 arg_types = {"this": True, "temporary": False, "unlogged": False} +1230 Returns: +1231 Delete: the modified expression. +1232 """ +1233 return _apply_builder( +1234 expression=table, +1235 instance=self, +1236 arg="this", +1237 dialect=dialect, +1238 into=Table, +1239 copy=copy, +1240 **opts, +1241 ) 1242 -1243 -1244class From(Expression): -1245 arg_types = {"expressions": True} -1246 -1247 -1248class Having(Expression): -1249 pass -1250 -1251 -1252class Hint(Expression): -1253 arg_types = {"expressions": True} -1254 -1255 -1256class JoinHint(Expression): -1257 arg_types = {"this": True, "expressions": True} -1258 -1259 -1260class Identifier(Expression): -1261 arg_types = {"this": True, "quoted": False} -1262 -1263 @property -1264 def quoted(self): -1265 return bool(self.args.get("quoted")) -1266 -1267 @property -1268 def hashable_args(self) -> t.Any: -1269 if self.quoted and any(char.isupper() for char in self.this): -1270 return (self.this, self.quoted) -1271 return self.this.lower() -1272 -1273 @property -1274 def output_name(self): -1275 return self.name -1276 -1277 -1278class Index(Expression): -1279 arg_types = { -1280 "this": False, -1281 "table": False, -1282 "where": False, -1283 "columns": False, -1284 "unique": False, -1285 "primary": False, -1286 "amp": False, # teradata -1287 } -1288 -1289 -1290class Insert(Expression): -1291 arg_types = { -1292 "with": False, -1293 "this": True, -1294 "expression": False, -1295 "conflict": False, -1296 "returning": False, -1297 "overwrite": False, -1298 "exists": False, -1299 "partition": False, -1300 "alternative": False, -1301 } +1243 def where( +1244 self, +1245 *expressions: ExpOrStr, +1246 append: bool = True, +1247 dialect: DialectType = None, +1248 copy: bool = True, +1249 **opts, +1250 ) -> Delete: +1251 """ +1252 Append to or set the WHERE expressions. +1253 +1254 Example: +1255 >>> delete("tbl").where("x = 'a' OR x < 'b'").sql() +1256 "DELETE FROM tbl WHERE x = 'a' OR x < 'b'" +1257 +1258 Args: +1259 *expressions: the SQL code strings to parse. +1260 If an `Expression` instance is passed, it will be used as-is. +1261 Multiple expressions are combined with an AND operator. +1262 append: if `True`, AND the new expressions to any existing expression. +1263 Otherwise, this resets the expression. +1264 dialect: the dialect used to parse the input expressions. +1265 copy: if `False`, modify this expression instance in-place. +1266 opts: other options to use to parse the input expressions. +1267 +1268 Returns: +1269 Delete: the modified expression. +1270 """ +1271 return _apply_conjunction_builder( +1272 *expressions, +1273 instance=self, +1274 arg="where", +1275 append=append, +1276 into=Where, +1277 dialect=dialect, +1278 copy=copy, +1279 **opts, +1280 ) +1281 +1282 def returning( +1283 self, +1284 expression: ExpOrStr, +1285 dialect: DialectType = None, +1286 copy: bool = True, +1287 **opts, +1288 ) -> Delete: +1289 """ +1290 Set the RETURNING expression. Not supported by all dialects. +1291 +1292 Example: +1293 >>> delete("tbl").returning("*", dialect="postgres").sql() +1294 'DELETE FROM tbl RETURNING *' +1295 +1296 Args: +1297 expression: the SQL code strings to parse. +1298 If an `Expression` instance is passed, it will be used as-is. +1299 dialect: the dialect used to parse the input expressions. +1300 copy: if `False`, modify this expression instance in-place. +1301 opts: other options to use to parse the input expressions. 1302 -1303 -1304class OnConflict(Expression): -1305 arg_types = { -1306 "duplicate": False, -1307 "expressions": False, -1308 "nothing": False, -1309 "key": False, -1310 "constraint": False, -1311 } -1312 -1313 -1314class Returning(Expression): -1315 arg_types = {"expressions": True} +1303 Returns: +1304 Delete: the modified expression. +1305 """ +1306 return _apply_builder( +1307 expression=expression, +1308 instance=self, +1309 arg="returning", +1310 prefix="RETURNING", +1311 dialect=dialect, +1312 copy=copy, +1313 into=Returning, +1314 **opts, +1315 ) 1316 1317 -1318# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html -1319class Introducer(Expression): -1320 arg_types = {"this": True, "expression": True} -1321 -1322 -1323# national char, like n'utf8' -1324class National(Expression): -1325 pass -1326 -1327 -1328class LoadData(Expression): -1329 arg_types = { -1330 "this": True, -1331 "local": False, -1332 "overwrite": False, -1333 "inpath": True, -1334 "partition": False, -1335 "input_format": False, -1336 "serde": False, -1337 } +1318class Drop(Expression): +1319 arg_types = { +1320 "this": False, +1321 "kind": False, +1322 "exists": False, +1323 "temporary": False, +1324 "materialized": False, +1325 "cascade": False, +1326 "constraints": False, +1327 "purge": False, +1328 } +1329 +1330 +1331class Filter(Expression): +1332 arg_types = {"this": True, "expression": True} +1333 +1334 +1335class Check(Expression): +1336 pass +1337 1338 -1339 -1340class Partition(Expression): -1341 arg_types = {"expressions": True} +1339class Directory(Expression): +1340 # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html +1341 arg_types = {"this": True, "local": False, "row_format": False} 1342 1343 -1344class Fetch(Expression): +1344class ForeignKey(Expression): 1345 arg_types = { -1346 "direction": False, -1347 "count": False, -1348 "percent": False, -1349 "with_ties": False, +1346 "expressions": True, +1347 "reference": False, +1348 "delete": False, +1349 "update": False, 1350 } 1351 1352 -1353class Group(Expression): -1354 arg_types = { -1355 "expressions": False, -1356 "grouping_sets": False, -1357 "cube": False, -1358 "rollup": False, -1359 } +1353class PrimaryKey(Expression): +1354 arg_types = {"expressions": True, "options": False} +1355 +1356 +1357class Unique(Expression): +1358 arg_types = {"expressions": True} +1359 1360 -1361 -1362class Lambda(Expression): -1363 arg_types = {"this": True, "expressions": True} -1364 +1361# https://www.postgresql.org/docs/9.1/sql-selectinto.html +1362# https://docs.aws.amazon.com/redshift/latest/dg/r_SELECT_INTO.html#r_SELECT_INTO-examples +1363class Into(Expression): +1364 arg_types = {"this": True, "temporary": False, "unlogged": False} 1365 -1366class Limit(Expression): -1367 arg_types = {"this": False, "expression": True} -1368 +1366 +1367class From(Expression): +1368 arg_types = {"expressions": True} 1369 -1370class Literal(Condition): -1371 arg_types = {"this": True, "is_string": True} -1372 -1373 @property -1374 def hashable_args(self) -> t.Any: -1375 return (self.this, self.args.get("is_string")) -1376 -1377 @classmethod -1378 def number(cls, number) -> Literal: -1379 return cls(this=str(number), is_string=False) -1380 -1381 @classmethod -1382 def string(cls, string) -> Literal: -1383 return cls(this=str(string), is_string=True) -1384 -1385 @property -1386 def output_name(self): -1387 return self.name -1388 +1370 +1371class Having(Expression): +1372 pass +1373 +1374 +1375class Hint(Expression): +1376 arg_types = {"expressions": True} +1377 +1378 +1379class JoinHint(Expression): +1380 arg_types = {"this": True, "expressions": True} +1381 +1382 +1383class Identifier(Expression): +1384 arg_types = {"this": True, "quoted": False} +1385 +1386 @property +1387 def quoted(self): +1388 return bool(self.args.get("quoted")) 1389 -1390class Join(Expression): -1391 arg_types = { -1392 "this": True, -1393 "on": False, -1394 "side": False, -1395 "kind": False, -1396 "using": False, -1397 "natural": False, -1398 "hint": False, -1399 } +1390 @property +1391 def hashable_args(self) -> t.Any: +1392 if self.quoted and any(char.isupper() for char in self.this): +1393 return (self.this, self.quoted) +1394 return self.this.lower() +1395 +1396 @property +1397 def output_name(self): +1398 return self.name +1399 1400 -1401 @property -1402 def kind(self): -1403 return self.text("kind").upper() -1404 -1405 @property -1406 def side(self): -1407 return self.text("side").upper() -1408 -1409 @property -1410 def hint(self): -1411 return self.text("hint").upper() +1401class Index(Expression): +1402 arg_types = { +1403 "this": False, +1404 "table": False, +1405 "where": False, +1406 "columns": False, +1407 "unique": False, +1408 "primary": False, +1409 "amp": False, # teradata +1410 } +1411 1412 -1413 @property -1414 def alias_or_name(self): -1415 return self.this.alias_or_name -1416 -1417 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): -1418 """ -1419 Append to or set the ON expressions. -1420 -1421 Example: -1422 >>> import sqlglot -1423 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() -1424 'JOIN x ON y = 1' +1413class Insert(Expression): +1414 arg_types = { +1415 "with": False, +1416 "this": True, +1417 "expression": False, +1418 "conflict": False, +1419 "returning": False, +1420 "overwrite": False, +1421 "exists": False, +1422 "partition": False, +1423 "alternative": False, +1424 } 1425 -1426 Args: -1427 *expressions (str | Expression): the SQL code strings to parse. -1428 If an `Expression` instance is passed, it will be used as-is. -1429 Multiple expressions are combined with an AND operator. -1430 append (bool): if `True`, AND the new expressions to any existing expression. -1431 Otherwise, this resets the expression. -1432 dialect (str): the dialect used to parse the input expressions. -1433 copy (bool): if `False`, modify this expression instance in-place. -1434 opts (kwargs): other options to use to parse the input expressions. +1426 +1427class OnConflict(Expression): +1428 arg_types = { +1429 "duplicate": False, +1430 "expressions": False, +1431 "nothing": False, +1432 "key": False, +1433 "constraint": False, +1434 } 1435 -1436 Returns: -1437 Join: the modified join expression. -1438 """ -1439 join = _apply_conjunction_builder( -1440 *expressions, -1441 instance=self, -1442 arg="on", -1443 append=append, -1444 dialect=dialect, -1445 copy=copy, -1446 **opts, -1447 ) -1448 -1449 if join.kind == "CROSS": -1450 join.set("kind", None) -1451 -1452 return join -1453 -1454 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): -1455 """ -1456 Append to or set the USING expressions. -1457 -1458 Example: -1459 >>> import sqlglot -1460 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() -1461 'JOIN x USING (foo, bla)' +1436 +1437class Returning(Expression): +1438 arg_types = {"expressions": True} +1439 +1440 +1441# https://dev.mysql.com/doc/refman/8.0/en/charset-introducer.html +1442class Introducer(Expression): +1443 arg_types = {"this": True, "expression": True} +1444 +1445 +1446# national char, like n'utf8' +1447class National(Expression): +1448 pass +1449 +1450 +1451class LoadData(Expression): +1452 arg_types = { +1453 "this": True, +1454 "local": False, +1455 "overwrite": False, +1456 "inpath": True, +1457 "partition": False, +1458 "input_format": False, +1459 "serde": False, +1460 } +1461 1462 -1463 Args: -1464 *expressions (str | Expression): the SQL code strings to parse. -1465 If an `Expression` instance is passed, it will be used as-is. -1466 append (bool): if `True`, concatenate the new expressions to the existing "using" list. -1467 Otherwise, this resets the expression. -1468 dialect (str): the dialect used to parse the input expressions. -1469 copy (bool): if `False`, modify this expression instance in-place. -1470 opts (kwargs): other options to use to parse the input expressions. -1471 -1472 Returns: -1473 Join: the modified join expression. -1474 """ -1475 join = _apply_list_builder( -1476 *expressions, -1477 instance=self, -1478 arg="using", -1479 append=append, -1480 dialect=dialect, -1481 copy=copy, -1482 **opts, -1483 ) +1463class Partition(Expression): +1464 arg_types = {"expressions": True} +1465 +1466 +1467class Fetch(Expression): +1468 arg_types = { +1469 "direction": False, +1470 "count": False, +1471 "percent": False, +1472 "with_ties": False, +1473 } +1474 +1475 +1476class Group(Expression): +1477 arg_types = { +1478 "expressions": False, +1479 "grouping_sets": False, +1480 "cube": False, +1481 "rollup": False, +1482 } +1483 1484 -1485 if join.kind == "CROSS": -1486 join.set("kind", None) +1485class Lambda(Expression): +1486 arg_types = {"this": True, "expressions": True} 1487 -1488 return join -1489 -1490 -1491class Lateral(UDTF): -1492 arg_types = {"this": True, "view": False, "outer": False, "alias": False} -1493 -1494 -1495class MatchRecognize(Expression): -1496 arg_types = { -1497 "partition_by": False, -1498 "order": False, -1499 "measures": False, -1500 "rows": False, -1501 "after": False, -1502 "pattern": False, -1503 "define": False, -1504 "alias": False, -1505 } -1506 +1488 +1489class Limit(Expression): +1490 arg_types = {"this": False, "expression": True} +1491 +1492 +1493class Literal(Condition): +1494 arg_types = {"this": True, "is_string": True} +1495 +1496 @property +1497 def hashable_args(self) -> t.Any: +1498 return (self.this, self.args.get("is_string")) +1499 +1500 @classmethod +1501 def number(cls, number) -> Literal: +1502 return cls(this=str(number), is_string=False) +1503 +1504 @classmethod +1505 def string(cls, string) -> Literal: +1506 return cls(this=str(string), is_string=True) 1507 -1508# Clickhouse FROM FINAL modifier -1509# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier -1510class Final(Expression): -1511 pass +1508 @property +1509 def output_name(self): +1510 return self.name +1511 1512 -1513 -1514class Offset(Expression): -1515 arg_types = {"this": False, "expression": True} -1516 -1517 -1518class Order(Expression): -1519 arg_types = {"this": False, "expressions": True} -1520 -1521 -1522# hive specific sorts -1523# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy -1524class Cluster(Order): -1525 pass -1526 +1513class Join(Expression): +1514 arg_types = { +1515 "this": True, +1516 "on": False, +1517 "side": False, +1518 "kind": False, +1519 "using": False, +1520 "natural": False, +1521 "hint": False, +1522 } +1523 +1524 @property +1525 def kind(self): +1526 return self.text("kind").upper() 1527 -1528class Distribute(Order): -1529 pass -1530 +1528 @property +1529 def side(self): +1530 return self.text("side").upper() 1531 -1532class Sort(Order): -1533 pass -1534 +1532 @property +1533 def hint(self): +1534 return self.text("hint").upper() 1535 -1536class Ordered(Expression): -1537 arg_types = {"this": True, "desc": True, "nulls_first": True} -1538 +1536 @property +1537 def alias_or_name(self): +1538 return self.this.alias_or_name 1539 -1540class Property(Expression): -1541 arg_types = {"this": True, "value": True} -1542 +1540 def on(self, *expressions, append=True, dialect=None, copy=True, **opts): +1541 """ +1542 Append to or set the ON expressions. 1543 -1544class AfterJournalProperty(Property): -1545 arg_types = {"no": True, "dual": False, "local": False} -1546 -1547 -1548class AlgorithmProperty(Property): -1549 arg_types = {"this": True} -1550 -1551 -1552class AutoIncrementProperty(Property): -1553 arg_types = {"this": True} -1554 -1555 -1556class BlockCompressionProperty(Property): -1557 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} +1544 Example: +1545 >>> import sqlglot +1546 >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql() +1547 'JOIN x ON y = 1' +1548 +1549 Args: +1550 *expressions (str | Expression): the SQL code strings to parse. +1551 If an `Expression` instance is passed, it will be used as-is. +1552 Multiple expressions are combined with an AND operator. +1553 append (bool): if `True`, AND the new expressions to any existing expression. +1554 Otherwise, this resets the expression. +1555 dialect (str): the dialect used to parse the input expressions. +1556 copy (bool): if `False`, modify this expression instance in-place. +1557 opts (kwargs): other options to use to parse the input expressions. 1558 -1559 -1560class CharacterSetProperty(Property): -1561 arg_types = {"this": True, "default": True} -1562 -1563 -1564class ChecksumProperty(Property): -1565 arg_types = {"on": False, "default": False} -1566 -1567 -1568class CollateProperty(Property): -1569 arg_types = {"this": True} -1570 +1559 Returns: +1560 Join: the modified join expression. +1561 """ +1562 join = _apply_conjunction_builder( +1563 *expressions, +1564 instance=self, +1565 arg="on", +1566 append=append, +1567 dialect=dialect, +1568 copy=copy, +1569 **opts, +1570 ) 1571 -1572class DataBlocksizeProperty(Property): -1573 arg_types = {"size": False, "units": False, "min": False, "default": False} +1572 if join.kind == "CROSS": +1573 join.set("kind", None) 1574 -1575 -1576class DefinerProperty(Property): -1577 arg_types = {"this": True} -1578 -1579 -1580class DistKeyProperty(Property): -1581 arg_types = {"this": True} -1582 -1583 -1584class DistStyleProperty(Property): -1585 arg_types = {"this": True} -1586 -1587 -1588class EngineProperty(Property): -1589 arg_types = {"this": True} -1590 -1591 -1592class ExecuteAsProperty(Property): -1593 arg_types = {"this": True} +1575 return join +1576 +1577 def using(self, *expressions, append=True, dialect=None, copy=True, **opts): +1578 """ +1579 Append to or set the USING expressions. +1580 +1581 Example: +1582 >>> import sqlglot +1583 >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql() +1584 'JOIN x USING (foo, bla)' +1585 +1586 Args: +1587 *expressions (str | Expression): the SQL code strings to parse. +1588 If an `Expression` instance is passed, it will be used as-is. +1589 append (bool): if `True`, concatenate the new expressions to the existing "using" list. +1590 Otherwise, this resets the expression. +1591 dialect (str): the dialect used to parse the input expressions. +1592 copy (bool): if `False`, modify this expression instance in-place. +1593 opts (kwargs): other options to use to parse the input expressions. 1594 -1595 -1596class ExternalProperty(Property): -1597 arg_types = {"this": False} -1598 -1599 -1600class FallbackProperty(Property): -1601 arg_types = {"no": True, "protection": False} -1602 -1603 -1604class FileFormatProperty(Property): -1605 arg_types = {"this": True} -1606 +1595 Returns: +1596 Join: the modified join expression. +1597 """ +1598 join = _apply_list_builder( +1599 *expressions, +1600 instance=self, +1601 arg="using", +1602 append=append, +1603 dialect=dialect, +1604 copy=copy, +1605 **opts, +1606 ) 1607 -1608class FreespaceProperty(Property): -1609 arg_types = {"this": True, "percent": False} +1608 if join.kind == "CROSS": +1609 join.set("kind", None) 1610 -1611 -1612class InputOutputFormat(Expression): -1613 arg_types = {"input_format": False, "output_format": False} -1614 -1615 -1616class IsolatedLoadingProperty(Property): -1617 arg_types = { -1618 "no": True, -1619 "concurrent": True, -1620 "for_all": True, -1621 "for_insert": True, -1622 "for_none": True, -1623 } -1624 -1625 -1626class JournalProperty(Property): -1627 arg_types = {"no": True, "dual": False, "before": False} -1628 +1611 return join +1612 +1613 +1614class Lateral(UDTF): +1615 arg_types = {"this": True, "view": False, "outer": False, "alias": False} +1616 +1617 +1618class MatchRecognize(Expression): +1619 arg_types = { +1620 "partition_by": False, +1621 "order": False, +1622 "measures": False, +1623 "rows": False, +1624 "after": False, +1625 "pattern": False, +1626 "define": False, +1627 "alias": False, +1628 } 1629 -1630class LanguageProperty(Property): -1631 arg_types = {"this": True} -1632 -1633 -1634class LikeProperty(Property): -1635 arg_types = {"this": True, "expressions": False} +1630 +1631# Clickhouse FROM FINAL modifier +1632# https://clickhouse.com/docs/en/sql-reference/statements/select/from/#final-modifier +1633class Final(Expression): +1634 pass +1635 1636 -1637 -1638class LocationProperty(Property): -1639 arg_types = {"this": True} +1637class Offset(Expression): +1638 arg_types = {"this": False, "expression": True} +1639 1640 -1641 -1642class LockingProperty(Property): -1643 arg_types = { -1644 "this": False, -1645 "kind": True, -1646 "for_or_in": True, -1647 "lock_type": True, -1648 "override": False, -1649 } +1641class Order(Expression): +1642 arg_types = {"this": False, "expressions": True} +1643 +1644 +1645# hive specific sorts +1646# https://cwiki.apache.org/confluence/display/Hive/LanguageManual+SortBy +1647class Cluster(Order): +1648 pass +1649 1650 -1651 -1652class LogProperty(Property): -1653 arg_types = {"no": True} +1651class Distribute(Order): +1652 pass +1653 1654 -1655 -1656class MaterializedProperty(Property): -1657 arg_types = {"this": False} +1655class Sort(Order): +1656 pass +1657 1658 -1659 -1660class MergeBlockRatioProperty(Property): -1661 arg_types = {"this": False, "no": False, "default": False, "percent": False} +1659class Ordered(Expression): +1660 arg_types = {"this": True, "desc": True, "nulls_first": True} +1661 1662 -1663 -1664class NoPrimaryIndexProperty(Property): -1665 arg_types = {"this": False} +1663class Property(Expression): +1664 arg_types = {"this": True, "value": True} +1665 1666 -1667 -1668class OnCommitProperty(Property): -1669 arg_type = {"this": False} +1667class AfterJournalProperty(Property): +1668 arg_types = {"no": True, "dual": False, "local": False} +1669 1670 -1671 -1672class PartitionedByProperty(Property): -1673 arg_types = {"this": True} +1671class AlgorithmProperty(Property): +1672 arg_types = {"this": True} +1673 1674 -1675 -1676class ReturnsProperty(Property): -1677 arg_types = {"this": True, "is_table": False, "table": False} +1675class AutoIncrementProperty(Property): +1676 arg_types = {"this": True} +1677 1678 -1679 -1680class RowFormatProperty(Property): -1681 arg_types = {"this": True} +1679class BlockCompressionProperty(Property): +1680 arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True} +1681 1682 -1683 -1684class RowFormatDelimitedProperty(Property): -1685 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml -1686 arg_types = { -1687 "fields": False, -1688 "escaped": False, -1689 "collection_items": False, -1690 "map_keys": False, -1691 "lines": False, -1692 "null": False, -1693 "serde": False, -1694 } -1695 -1696 -1697class RowFormatSerdeProperty(Property): -1698 arg_types = {"this": True} -1699 -1700 -1701class SchemaCommentProperty(Property): -1702 arg_types = {"this": True} -1703 -1704 -1705class SerdeProperties(Property): -1706 arg_types = {"expressions": True} -1707 -1708 -1709class SetProperty(Property): -1710 arg_types = {"multi": True} -1711 -1712 -1713class SortKeyProperty(Property): -1714 arg_types = {"this": True, "compound": False} -1715 -1716 -1717class SqlSecurityProperty(Property): -1718 arg_types = {"definer": True} -1719 -1720 -1721class StabilityProperty(Property): -1722 arg_types = {"this": True} -1723 -1724 -1725class TableFormatProperty(Property): -1726 arg_types = {"this": True} -1727 -1728 -1729class TemporaryProperty(Property): -1730 arg_types = {"global_": True} -1731 -1732 -1733class TransientProperty(Property): -1734 arg_types = {"this": False} -1735 -1736 -1737class VolatileProperty(Property): -1738 arg_types = {"this": False} -1739 -1740 -1741class WithDataProperty(Property): -1742 arg_types = {"no": True, "statistics": False} -1743 -1744 -1745class WithJournalTableProperty(Property): -1746 arg_types = {"this": True} +1683class CharacterSetProperty(Property): +1684 arg_types = {"this": True, "default": True} +1685 +1686 +1687class ChecksumProperty(Property): +1688 arg_types = {"on": False, "default": False} +1689 +1690 +1691class CollateProperty(Property): +1692 arg_types = {"this": True} +1693 +1694 +1695class DataBlocksizeProperty(Property): +1696 arg_types = {"size": False, "units": False, "min": False, "default": False} +1697 +1698 +1699class DefinerProperty(Property): +1700 arg_types = {"this": True} +1701 +1702 +1703class DistKeyProperty(Property): +1704 arg_types = {"this": True} +1705 +1706 +1707class DistStyleProperty(Property): +1708 arg_types = {"this": True} +1709 +1710 +1711class EngineProperty(Property): +1712 arg_types = {"this": True} +1713 +1714 +1715class ExecuteAsProperty(Property): +1716 arg_types = {"this": True} +1717 +1718 +1719class ExternalProperty(Property): +1720 arg_types = {"this": False} +1721 +1722 +1723class FallbackProperty(Property): +1724 arg_types = {"no": True, "protection": False} +1725 +1726 +1727class FileFormatProperty(Property): +1728 arg_types = {"this": True} +1729 +1730 +1731class FreespaceProperty(Property): +1732 arg_types = {"this": True, "percent": False} +1733 +1734 +1735class InputOutputFormat(Expression): +1736 arg_types = {"input_format": False, "output_format": False} +1737 +1738 +1739class IsolatedLoadingProperty(Property): +1740 arg_types = { +1741 "no": True, +1742 "concurrent": True, +1743 "for_all": True, +1744 "for_insert": True, +1745 "for_none": True, +1746 } 1747 1748 -1749class Properties(Expression): -1750 arg_types = {"expressions": True} +1749class JournalProperty(Property): +1750 arg_types = {"no": True, "dual": False, "before": False} 1751 -1752 NAME_TO_PROPERTY = { -1753 "ALGORITHM": AlgorithmProperty, -1754 "AUTO_INCREMENT": AutoIncrementProperty, -1755 "CHARACTER SET": CharacterSetProperty, -1756 "COLLATE": CollateProperty, -1757 "COMMENT": SchemaCommentProperty, -1758 "DEFINER": DefinerProperty, -1759 "DISTKEY": DistKeyProperty, -1760 "DISTSTYLE": DistStyleProperty, -1761 "ENGINE": EngineProperty, -1762 "EXECUTE AS": ExecuteAsProperty, -1763 "FORMAT": FileFormatProperty, -1764 "LANGUAGE": LanguageProperty, -1765 "LOCATION": LocationProperty, -1766 "PARTITIONED_BY": PartitionedByProperty, -1767 "RETURNS": ReturnsProperty, -1768 "ROW_FORMAT": RowFormatProperty, -1769 "SORTKEY": SortKeyProperty, -1770 "TABLE_FORMAT": TableFormatProperty, -1771 } -1772 -1773 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} +1752 +1753class LanguageProperty(Property): +1754 arg_types = {"this": True} +1755 +1756 +1757class LikeProperty(Property): +1758 arg_types = {"this": True, "expressions": False} +1759 +1760 +1761class LocationProperty(Property): +1762 arg_types = {"this": True} +1763 +1764 +1765class LockingProperty(Property): +1766 arg_types = { +1767 "this": False, +1768 "kind": True, +1769 "for_or_in": True, +1770 "lock_type": True, +1771 "override": False, +1772 } +1773 1774 -1775 # CREATE property locations -1776 # Form: schema specified -1777 # create [POST_CREATE] -1778 # table a [POST_NAME] -1779 # (b int) [POST_SCHEMA] -1780 # with ([POST_WITH]) -1781 # index (b) [POST_INDEX] -1782 # -1783 # Form: alias selection -1784 # create [POST_CREATE] -1785 # table a [POST_NAME] -1786 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] -1787 # index (c) [POST_INDEX] -1788 class Location(AutoName): -1789 POST_CREATE = auto() -1790 POST_NAME = auto() -1791 POST_SCHEMA = auto() -1792 POST_WITH = auto() -1793 POST_ALIAS = auto() -1794 POST_EXPRESSION = auto() -1795 POST_INDEX = auto() -1796 UNSUPPORTED = auto() +1775class LogProperty(Property): +1776 arg_types = {"no": True} +1777 +1778 +1779class MaterializedProperty(Property): +1780 arg_types = {"this": False} +1781 +1782 +1783class MergeBlockRatioProperty(Property): +1784 arg_types = {"this": False, "no": False, "default": False, "percent": False} +1785 +1786 +1787class NoPrimaryIndexProperty(Property): +1788 arg_types = {"this": False} +1789 +1790 +1791class OnCommitProperty(Property): +1792 arg_type = {"this": False} +1793 +1794 +1795class PartitionedByProperty(Property): +1796 arg_types = {"this": True} 1797 -1798 @classmethod -1799 def from_dict(cls, properties_dict) -> Properties: -1800 expressions = [] -1801 for key, value in properties_dict.items(): -1802 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) -1803 if property_cls: -1804 expressions.append(property_cls(this=convert(value))) -1805 else: -1806 expressions.append(Property(this=Literal.string(key), value=convert(value))) -1807 -1808 return cls(expressions=expressions) -1809 -1810 -1811class Qualify(Expression): -1812 pass -1813 -1814 -1815# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql -1816class Return(Expression): -1817 pass +1798 +1799class ReturnsProperty(Property): +1800 arg_types = {"this": True, "is_table": False, "table": False} +1801 +1802 +1803class RowFormatProperty(Property): +1804 arg_types = {"this": True} +1805 +1806 +1807class RowFormatDelimitedProperty(Property): +1808 # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml +1809 arg_types = { +1810 "fields": False, +1811 "escaped": False, +1812 "collection_items": False, +1813 "map_keys": False, +1814 "lines": False, +1815 "null": False, +1816 "serde": False, +1817 } 1818 1819 -1820class Reference(Expression): -1821 arg_types = {"this": True, "expressions": False, "options": False} +1820class RowFormatSerdeProperty(Property): +1821 arg_types = {"this": True} 1822 1823 -1824class Tuple(Expression): -1825 arg_types = {"expressions": False} +1824class SchemaCommentProperty(Property): +1825 arg_types = {"this": True} 1826 1827 -1828class Subqueryable(Unionable): -1829 def subquery(self, alias=None, copy=True) -> Subquery: -1830 """ -1831 Convert this expression to an aliased expression that can be used as a Subquery. -1832 -1833 Example: -1834 >>> subquery = Select().select("x").from_("tbl").subquery() -1835 >>> Select().select("x").from_(subquery).sql() -1836 'SELECT x FROM (SELECT x FROM tbl)' -1837 -1838 Args: -1839 alias (str | Identifier): an optional alias for the subquery -1840 copy (bool): if `False`, modify this expression instance in-place. -1841 -1842 Returns: -1843 Alias: the subquery -1844 """ -1845 instance = _maybe_copy(self, copy) -1846 return Subquery( -1847 this=instance, -1848 alias=TableAlias(this=to_identifier(alias)) if alias else None, -1849 ) +1828class SerdeProperties(Property): +1829 arg_types = {"expressions": True} +1830 +1831 +1832class SetProperty(Property): +1833 arg_types = {"multi": True} +1834 +1835 +1836class SortKeyProperty(Property): +1837 arg_types = {"this": True, "compound": False} +1838 +1839 +1840class SqlSecurityProperty(Property): +1841 arg_types = {"definer": True} +1842 +1843 +1844class StabilityProperty(Property): +1845 arg_types = {"this": True} +1846 +1847 +1848class TableFormatProperty(Property): +1849 arg_types = {"this": True} 1850 -1851 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1852 raise NotImplementedError -1853 -1854 @property -1855 def ctes(self): -1856 with_ = self.args.get("with") -1857 if not with_: -1858 return [] -1859 return with_.expressions -1860 -1861 @property -1862 def selects(self): -1863 raise NotImplementedError("Subqueryable objects must implement `selects`") -1864 -1865 @property -1866 def named_selects(self): -1867 raise NotImplementedError("Subqueryable objects must implement `named_selects`") -1868 -1869 def with_( -1870 self, -1871 alias, -1872 as_, -1873 recursive=None, -1874 append=True, -1875 dialect=None, -1876 copy=True, -1877 **opts, -1878 ): -1879 """ -1880 Append to or set the common table expressions. -1881 -1882 Example: -1883 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() -1884 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' -1885 -1886 Args: -1887 alias (str | Expression): the SQL code string to parse as the table name. -1888 If an `Expression` instance is passed, this is used as-is. -1889 as_ (str | Expression): the SQL code string to parse as the table expression. -1890 If an `Expression` instance is passed, it will be used as-is. -1891 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. -1892 append (bool): if `True`, add to any existing expressions. -1893 Otherwise, this resets the expressions. -1894 dialect (str): the dialect used to parse the input expression. -1895 copy (bool): if `False`, modify this expression instance in-place. -1896 opts (kwargs): other options to use to parse the input expressions. +1851 +1852class TemporaryProperty(Property): +1853 arg_types = {"global_": True} +1854 +1855 +1856class TransientProperty(Property): +1857 arg_types = {"this": False} +1858 +1859 +1860class VolatileProperty(Property): +1861 arg_types = {"this": False} +1862 +1863 +1864class WithDataProperty(Property): +1865 arg_types = {"no": True, "statistics": False} +1866 +1867 +1868class WithJournalTableProperty(Property): +1869 arg_types = {"this": True} +1870 +1871 +1872class Properties(Expression): +1873 arg_types = {"expressions": True} +1874 +1875 NAME_TO_PROPERTY = { +1876 "ALGORITHM": AlgorithmProperty, +1877 "AUTO_INCREMENT": AutoIncrementProperty, +1878 "CHARACTER SET": CharacterSetProperty, +1879 "COLLATE": CollateProperty, +1880 "COMMENT": SchemaCommentProperty, +1881 "DEFINER": DefinerProperty, +1882 "DISTKEY": DistKeyProperty, +1883 "DISTSTYLE": DistStyleProperty, +1884 "ENGINE": EngineProperty, +1885 "EXECUTE AS": ExecuteAsProperty, +1886 "FORMAT": FileFormatProperty, +1887 "LANGUAGE": LanguageProperty, +1888 "LOCATION": LocationProperty, +1889 "PARTITIONED_BY": PartitionedByProperty, +1890 "RETURNS": ReturnsProperty, +1891 "ROW_FORMAT": RowFormatProperty, +1892 "SORTKEY": SortKeyProperty, +1893 "TABLE_FORMAT": TableFormatProperty, +1894 } +1895 +1896 PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()} 1897 -1898 Returns: -1899 Select: the modified expression. -1900 """ -1901 alias_expression = maybe_parse( -1902 alias, -1903 dialect=dialect, -1904 into=TableAlias, -1905 **opts, -1906 ) -1907 as_expression = maybe_parse( -1908 as_, -1909 dialect=dialect, -1910 **opts, -1911 ) -1912 cte = CTE( -1913 this=as_expression, -1914 alias=alias_expression, -1915 ) -1916 return _apply_child_list_builder( -1917 cte, -1918 instance=self, -1919 arg="with", -1920 append=append, -1921 copy=copy, -1922 into=With, -1923 properties={"recursive": recursive or False}, -1924 ) -1925 -1926 -1927QUERY_MODIFIERS = { -1928 "match": False, -1929 "laterals": False, -1930 "joins": False, -1931 "pivots": False, -1932 "where": False, -1933 "group": False, -1934 "having": False, -1935 "qualify": False, -1936 "windows": False, -1937 "distribute": False, -1938 "sort": False, -1939 "cluster": False, -1940 "order": False, -1941 "limit": False, -1942 "offset": False, -1943 "lock": False, -1944 "sample": False, -1945} +1898 # CREATE property locations +1899 # Form: schema specified +1900 # create [POST_CREATE] +1901 # table a [POST_NAME] +1902 # (b int) [POST_SCHEMA] +1903 # with ([POST_WITH]) +1904 # index (b) [POST_INDEX] +1905 # +1906 # Form: alias selection +1907 # create [POST_CREATE] +1908 # table a [POST_NAME] +1909 # as [POST_ALIAS] (select * from b) [POST_EXPRESSION] +1910 # index (c) [POST_INDEX] +1911 class Location(AutoName): +1912 POST_CREATE = auto() +1913 POST_NAME = auto() +1914 POST_SCHEMA = auto() +1915 POST_WITH = auto() +1916 POST_ALIAS = auto() +1917 POST_EXPRESSION = auto() +1918 POST_INDEX = auto() +1919 UNSUPPORTED = auto() +1920 +1921 @classmethod +1922 def from_dict(cls, properties_dict) -> Properties: +1923 expressions = [] +1924 for key, value in properties_dict.items(): +1925 property_cls = cls.NAME_TO_PROPERTY.get(key.upper()) +1926 if property_cls: +1927 expressions.append(property_cls(this=convert(value))) +1928 else: +1929 expressions.append(Property(this=Literal.string(key), value=convert(value))) +1930 +1931 return cls(expressions=expressions) +1932 +1933 +1934class Qualify(Expression): +1935 pass +1936 +1937 +1938# https://www.ibm.com/docs/en/ias?topic=procedures-return-statement-in-sql +1939class Return(Expression): +1940 pass +1941 +1942 +1943class Reference(Expression): +1944 arg_types = {"this": True, "expressions": False, "options": False} +1945 1946 -1947 -1948class Table(Expression): -1949 arg_types = { -1950 "this": True, -1951 "alias": False, -1952 "db": False, -1953 "catalog": False, -1954 "laterals": False, -1955 "joins": False, -1956 "pivots": False, -1957 "hints": False, -1958 "system_time": False, -1959 } +1947class Tuple(Expression): +1948 arg_types = {"expressions": False} +1949 +1950 +1951class Subqueryable(Unionable): +1952 def subquery(self, alias=None, copy=True) -> Subquery: +1953 """ +1954 Convert this expression to an aliased expression that can be used as a Subquery. +1955 +1956 Example: +1957 >>> subquery = Select().select("x").from_("tbl").subquery() +1958 >>> Select().select("x").from_(subquery).sql() +1959 'SELECT x FROM (SELECT x FROM tbl)' 1960 -1961 @property -1962 def db(self) -> str: -1963 return self.text("db") +1961 Args: +1962 alias (str | Identifier): an optional alias for the subquery +1963 copy (bool): if `False`, modify this expression instance in-place. 1964 -1965 @property -1966 def catalog(self) -> str: -1967 return self.text("catalog") -1968 -1969 -1970# See the TSQL "Querying data in a system-versioned temporal table" page -1971class SystemTime(Expression): -1972 arg_types = { -1973 "this": False, -1974 "expression": False, -1975 "kind": True, -1976 } -1977 -1978 -1979class Union(Subqueryable): -1980 arg_types = { -1981 "with": False, -1982 "this": True, -1983 "expression": True, -1984 "distinct": False, -1985 **QUERY_MODIFIERS, -1986 } +1965 Returns: +1966 Alias: the subquery +1967 """ +1968 instance = _maybe_copy(self, copy) +1969 return Subquery( +1970 this=instance, +1971 alias=TableAlias(this=to_identifier(alias)) if alias else None, +1972 ) +1973 +1974 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +1975 raise NotImplementedError +1976 +1977 @property +1978 def ctes(self): +1979 with_ = self.args.get("with") +1980 if not with_: +1981 return [] +1982 return with_.expressions +1983 +1984 @property +1985 def selects(self): +1986 raise NotImplementedError("Subqueryable objects must implement `selects`") 1987 -1988 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -1989 """ -1990 Set the LIMIT expression. +1988 @property +1989 def named_selects(self): +1990 raise NotImplementedError("Subqueryable objects must implement `named_selects`") 1991 -1992 Example: -1993 >>> select("1").union(select("1")).limit(1).sql() -1994 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' -1995 -1996 Args: -1997 expression (str | int | Expression): the SQL code string to parse. -1998 This can also be an integer. -1999 If a `Limit` instance is passed, this is used as-is. -2000 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -2001 dialect (str): the dialect used to parse the input expression. -2002 copy (bool): if `False`, modify this expression instance in-place. -2003 opts (kwargs): other options to use to parse the input expressions. +1992 def with_( +1993 self, +1994 alias, +1995 as_, +1996 recursive=None, +1997 append=True, +1998 dialect=None, +1999 copy=True, +2000 **opts, +2001 ): +2002 """ +2003 Append to or set the common table expressions. 2004 -2005 Returns: -2006 Select: The limited subqueryable. -2007 """ -2008 return ( -2009 select("*") -2010 .from_(self.subquery(alias="_l_0", copy=copy)) -2011 .limit(expression, dialect=dialect, copy=False, **opts) -2012 ) -2013 -2014 def select( -2015 self, -2016 *expressions: ExpOrStr, -2017 append: bool = True, -2018 dialect: DialectType = None, -2019 copy: bool = True, -2020 **opts, -2021 ) -> Union: -2022 """Append to or set the SELECT of the union recursively. -2023 -2024 Example: -2025 >>> from sqlglot import parse_one -2026 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() -2027 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' -2028 -2029 Args: -2030 *expressions: the SQL code strings to parse. -2031 If an `Expression` instance is passed, it will be used as-is. -2032 append: if `True`, add to any existing expressions. -2033 Otherwise, this resets the expressions. -2034 dialect: the dialect used to parse the input expressions. -2035 copy: if `False`, modify this expression instance in-place. -2036 opts: other options to use to parse the input expressions. -2037 -2038 Returns: -2039 Union: the modified expression. -2040 """ -2041 this = self.copy() if copy else self -2042 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) -2043 this.expression.unnest().select( -2044 *expressions, append=append, dialect=dialect, copy=False, **opts -2045 ) -2046 return this -2047 -2048 @property -2049 def named_selects(self): -2050 return self.this.unnest().named_selects -2051 -2052 @property -2053 def is_star(self) -> bool: -2054 return self.this.is_star or self.expression.is_star -2055 -2056 @property -2057 def selects(self): -2058 return self.this.unnest().selects -2059 -2060 @property -2061 def left(self): -2062 return self.this -2063 -2064 @property -2065 def right(self): -2066 return self.expression -2067 -2068 -2069class Except(Union): -2070 pass -2071 -2072 -2073class Intersect(Union): -2074 pass -2075 -2076 -2077class Unnest(UDTF): -2078 arg_types = { -2079 "expressions": True, -2080 "ordinality": False, -2081 "alias": False, -2082 "offset": False, -2083 } -2084 -2085 -2086class Update(Expression): -2087 arg_types = { -2088 "with": False, -2089 "this": False, -2090 "expressions": True, -2091 "from": False, -2092 "where": False, -2093 "returning": False, -2094 } -2095 -2096 -2097class Values(UDTF): -2098 arg_types = { -2099 "expressions": True, -2100 "ordinality": False, -2101 "alias": False, -2102 } -2103 -2104 -2105class Var(Expression): -2106 pass -2107 -2108 -2109class Schema(Expression): -2110 arg_types = {"this": False, "expressions": False} -2111 -2112 -2113# Used to represent the FOR UPDATE and FOR SHARE locking read types. -2114# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html -2115class Lock(Expression): -2116 arg_types = {"update": True} -2117 +2005 Example: +2006 >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql() +2007 'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2' +2008 +2009 Args: +2010 alias (str | Expression): the SQL code string to parse as the table name. +2011 If an `Expression` instance is passed, this is used as-is. +2012 as_ (str | Expression): the SQL code string to parse as the table expression. +2013 If an `Expression` instance is passed, it will be used as-is. +2014 recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`. +2015 append (bool): if `True`, add to any existing expressions. +2016 Otherwise, this resets the expressions. +2017 dialect (str): the dialect used to parse the input expression. +2018 copy (bool): if `False`, modify this expression instance in-place. +2019 opts (kwargs): other options to use to parse the input expressions. +2020 +2021 Returns: +2022 Select: the modified expression. +2023 """ +2024 alias_expression = maybe_parse( +2025 alias, +2026 dialect=dialect, +2027 into=TableAlias, +2028 **opts, +2029 ) +2030 as_expression = maybe_parse( +2031 as_, +2032 dialect=dialect, +2033 **opts, +2034 ) +2035 cte = CTE( +2036 this=as_expression, +2037 alias=alias_expression, +2038 ) +2039 return _apply_child_list_builder( +2040 cte, +2041 instance=self, +2042 arg="with", +2043 append=append, +2044 copy=copy, +2045 into=With, +2046 properties={"recursive": recursive or False}, +2047 ) +2048 +2049 +2050QUERY_MODIFIERS = { +2051 "match": False, +2052 "laterals": False, +2053 "joins": False, +2054 "pivots": False, +2055 "where": False, +2056 "group": False, +2057 "having": False, +2058 "qualify": False, +2059 "windows": False, +2060 "distribute": False, +2061 "sort": False, +2062 "cluster": False, +2063 "order": False, +2064 "limit": False, +2065 "offset": False, +2066 "lock": False, +2067 "sample": False, +2068} +2069 +2070 +2071class Table(Expression): +2072 arg_types = { +2073 "this": True, +2074 "alias": False, +2075 "db": False, +2076 "catalog": False, +2077 "laterals": False, +2078 "joins": False, +2079 "pivots": False, +2080 "hints": False, +2081 "system_time": False, +2082 } +2083 +2084 @property +2085 def db(self) -> str: +2086 return self.text("db") +2087 +2088 @property +2089 def catalog(self) -> str: +2090 return self.text("catalog") +2091 +2092 +2093# See the TSQL "Querying data in a system-versioned temporal table" page +2094class SystemTime(Expression): +2095 arg_types = { +2096 "this": False, +2097 "expression": False, +2098 "kind": True, +2099 } +2100 +2101 +2102class Union(Subqueryable): +2103 arg_types = { +2104 "with": False, +2105 "this": True, +2106 "expression": True, +2107 "distinct": False, +2108 **QUERY_MODIFIERS, +2109 } +2110 +2111 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +2112 """ +2113 Set the LIMIT expression. +2114 +2115 Example: +2116 >>> select("1").union(select("1")).limit(1).sql() +2117 'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1' 2118 -2119class Select(Subqueryable): -2120 arg_types = { -2121 "with": False, -2122 "kind": False, -2123 "expressions": False, -2124 "hint": False, -2125 "distinct": False, -2126 "into": False, -2127 "from": False, -2128 **QUERY_MODIFIERS, -2129 } -2130 -2131 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2132 """ -2133 Set the FROM expression. -2134 -2135 Example: -2136 >>> Select().from_("tbl").select("x").sql() -2137 'SELECT x FROM tbl' -2138 -2139 Args: -2140 *expressions (str | Expression): the SQL code strings to parse. -2141 If a `From` instance is passed, this is used as-is. -2142 If another `Expression` instance is passed, it will be wrapped in a `From`. -2143 append (bool): if `True`, add to any existing expressions. -2144 Otherwise, this flattens all the `From` expression into a single expression. -2145 dialect (str): the dialect used to parse the input expression. -2146 copy (bool): if `False`, modify this expression instance in-place. -2147 opts (kwargs): other options to use to parse the input expressions. -2148 -2149 Returns: -2150 Select: the modified expression. -2151 """ -2152 return _apply_child_list_builder( -2153 *expressions, -2154 instance=self, -2155 arg="from", -2156 append=append, -2157 copy=copy, -2158 prefix="FROM", -2159 into=From, -2160 dialect=dialect, -2161 **opts, -2162 ) -2163 -2164 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2165 """ -2166 Set the GROUP BY expression. -2167 -2168 Example: -2169 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() -2170 'SELECT x, COUNT(1) FROM tbl GROUP BY x' -2171 -2172 Args: -2173 *expressions (str | Expression): the SQL code strings to parse. -2174 If a `Group` instance is passed, this is used as-is. -2175 If another `Expression` instance is passed, it will be wrapped in a `Group`. -2176 If nothing is passed in then a group by is not applied to the expression -2177 append (bool): if `True`, add to any existing expressions. -2178 Otherwise, this flattens all the `Group` expression into a single expression. -2179 dialect (str): the dialect used to parse the input expression. -2180 copy (bool): if `False`, modify this expression instance in-place. -2181 opts (kwargs): other options to use to parse the input expressions. +2119 Args: +2120 expression (str | int | Expression): the SQL code string to parse. +2121 This can also be an integer. +2122 If a `Limit` instance is passed, this is used as-is. +2123 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +2124 dialect (str): the dialect used to parse the input expression. +2125 copy (bool): if `False`, modify this expression instance in-place. +2126 opts (kwargs): other options to use to parse the input expressions. +2127 +2128 Returns: +2129 Select: The limited subqueryable. +2130 """ +2131 return ( +2132 select("*") +2133 .from_(self.subquery(alias="_l_0", copy=copy)) +2134 .limit(expression, dialect=dialect, copy=False, **opts) +2135 ) +2136 +2137 def select( +2138 self, +2139 *expressions: ExpOrStr, +2140 append: bool = True, +2141 dialect: DialectType = None, +2142 copy: bool = True, +2143 **opts, +2144 ) -> Union: +2145 """Append to or set the SELECT of the union recursively. +2146 +2147 Example: +2148 >>> from sqlglot import parse_one +2149 >>> parse_one("select a from x union select a from y union select a from z").select("b").sql() +2150 'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z' +2151 +2152 Args: +2153 *expressions: the SQL code strings to parse. +2154 If an `Expression` instance is passed, it will be used as-is. +2155 append: if `True`, add to any existing expressions. +2156 Otherwise, this resets the expressions. +2157 dialect: the dialect used to parse the input expressions. +2158 copy: if `False`, modify this expression instance in-place. +2159 opts: other options to use to parse the input expressions. +2160 +2161 Returns: +2162 Union: the modified expression. +2163 """ +2164 this = self.copy() if copy else self +2165 this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts) +2166 this.expression.unnest().select( +2167 *expressions, append=append, dialect=dialect, copy=False, **opts +2168 ) +2169 return this +2170 +2171 @property +2172 def named_selects(self): +2173 return self.this.unnest().named_selects +2174 +2175 @property +2176 def is_star(self) -> bool: +2177 return self.this.is_star or self.expression.is_star +2178 +2179 @property +2180 def selects(self): +2181 return self.this.unnest().selects 2182 -2183 Returns: -2184 Select: the modified expression. -2185 """ -2186 if not expressions: -2187 return self if not copy else self.copy() -2188 return _apply_child_list_builder( -2189 *expressions, -2190 instance=self, -2191 arg="group", -2192 append=append, -2193 copy=copy, -2194 prefix="GROUP BY", -2195 into=Group, -2196 dialect=dialect, -2197 **opts, -2198 ) +2183 @property +2184 def left(self): +2185 return self.this +2186 +2187 @property +2188 def right(self): +2189 return self.expression +2190 +2191 +2192class Except(Union): +2193 pass +2194 +2195 +2196class Intersect(Union): +2197 pass +2198 2199 -2200 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2201 """ -2202 Set the ORDER BY expression. -2203 -2204 Example: -2205 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() -2206 'SELECT x FROM tbl ORDER BY x DESC' +2200class Unnest(UDTF): +2201 arg_types = { +2202 "expressions": True, +2203 "ordinality": False, +2204 "alias": False, +2205 "offset": False, +2206 } 2207 -2208 Args: -2209 *expressions (str | Expression): the SQL code strings to parse. -2210 If a `Group` instance is passed, this is used as-is. -2211 If another `Expression` instance is passed, it will be wrapped in a `Order`. -2212 append (bool): if `True`, add to any existing expressions. -2213 Otherwise, this flattens all the `Order` expression into a single expression. -2214 dialect (str): the dialect used to parse the input expression. -2215 copy (bool): if `False`, modify this expression instance in-place. -2216 opts (kwargs): other options to use to parse the input expressions. -2217 -2218 Returns: -2219 Select: the modified expression. -2220 """ -2221 return _apply_child_list_builder( -2222 *expressions, -2223 instance=self, -2224 arg="order", -2225 append=append, -2226 copy=copy, -2227 prefix="ORDER BY", -2228 into=Order, -2229 dialect=dialect, -2230 **opts, -2231 ) -2232 -2233 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2234 """ -2235 Set the SORT BY expression. -2236 -2237 Example: -2238 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() -2239 'SELECT x FROM tbl SORT BY x DESC' +2208 +2209class Update(Expression): +2210 arg_types = { +2211 "with": False, +2212 "this": False, +2213 "expressions": True, +2214 "from": False, +2215 "where": False, +2216 "returning": False, +2217 } +2218 +2219 +2220class Values(UDTF): +2221 arg_types = { +2222 "expressions": True, +2223 "ordinality": False, +2224 "alias": False, +2225 } +2226 +2227 +2228class Var(Expression): +2229 pass +2230 +2231 +2232class Schema(Expression): +2233 arg_types = {"this": False, "expressions": False} +2234 +2235 +2236# Used to represent the FOR UPDATE and FOR SHARE locking read types. +2237# https://dev.mysql.com/doc/refman/8.0/en/innodb-locking-reads.html +2238class Lock(Expression): +2239 arg_types = {"update": True} 2240 -2241 Args: -2242 *expressions (str | Expression): the SQL code strings to parse. -2243 If a `Group` instance is passed, this is used as-is. -2244 If another `Expression` instance is passed, it will be wrapped in a `SORT`. -2245 append (bool): if `True`, add to any existing expressions. -2246 Otherwise, this flattens all the `Order` expression into a single expression. -2247 dialect (str): the dialect used to parse the input expression. -2248 copy (bool): if `False`, modify this expression instance in-place. -2249 opts (kwargs): other options to use to parse the input expressions. -2250 -2251 Returns: -2252 Select: the modified expression. -2253 """ -2254 return _apply_child_list_builder( -2255 *expressions, -2256 instance=self, -2257 arg="sort", -2258 append=append, -2259 copy=copy, -2260 prefix="SORT BY", -2261 into=Sort, -2262 dialect=dialect, -2263 **opts, -2264 ) -2265 -2266 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2267 """ -2268 Set the CLUSTER BY expression. -2269 -2270 Example: -2271 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() -2272 'SELECT x FROM tbl CLUSTER BY x DESC' -2273 -2274 Args: -2275 *expressions (str | Expression): the SQL code strings to parse. -2276 If a `Group` instance is passed, this is used as-is. -2277 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. -2278 append (bool): if `True`, add to any existing expressions. -2279 Otherwise, this flattens all the `Order` expression into a single expression. -2280 dialect (str): the dialect used to parse the input expression. -2281 copy (bool): if `False`, modify this expression instance in-place. -2282 opts (kwargs): other options to use to parse the input expressions. -2283 -2284 Returns: -2285 Select: the modified expression. -2286 """ -2287 return _apply_child_list_builder( -2288 *expressions, -2289 instance=self, -2290 arg="cluster", -2291 append=append, -2292 copy=copy, -2293 prefix="CLUSTER BY", -2294 into=Cluster, -2295 dialect=dialect, -2296 **opts, -2297 ) -2298 -2299 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: -2300 """ -2301 Set the LIMIT expression. -2302 -2303 Example: -2304 >>> Select().from_("tbl").select("x").limit(10).sql() -2305 'SELECT x FROM tbl LIMIT 10' -2306 -2307 Args: -2308 expression (str | int | Expression): the SQL code string to parse. -2309 This can also be an integer. -2310 If a `Limit` instance is passed, this is used as-is. -2311 If another `Expression` instance is passed, it will be wrapped in a `Limit`. -2312 dialect (str): the dialect used to parse the input expression. -2313 copy (bool): if `False`, modify this expression instance in-place. -2314 opts (kwargs): other options to use to parse the input expressions. -2315 -2316 Returns: -2317 Select: the modified expression. -2318 """ -2319 return _apply_builder( -2320 expression=expression, -2321 instance=self, -2322 arg="limit", -2323 into=Limit, -2324 prefix="LIMIT", -2325 dialect=dialect, -2326 copy=copy, -2327 **opts, -2328 ) -2329 -2330 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: -2331 """ -2332 Set the OFFSET expression. -2333 -2334 Example: -2335 >>> Select().from_("tbl").select("x").offset(10).sql() -2336 'SELECT x FROM tbl OFFSET 10' -2337 -2338 Args: -2339 expression (str | int | Expression): the SQL code string to parse. -2340 This can also be an integer. -2341 If a `Offset` instance is passed, this is used as-is. -2342 If another `Expression` instance is passed, it will be wrapped in a `Offset`. -2343 dialect (str): the dialect used to parse the input expression. -2344 copy (bool): if `False`, modify this expression instance in-place. -2345 opts (kwargs): other options to use to parse the input expressions. -2346 -2347 Returns: -2348 Select: the modified expression. -2349 """ -2350 return _apply_builder( -2351 expression=expression, -2352 instance=self, -2353 arg="offset", -2354 into=Offset, -2355 prefix="OFFSET", -2356 dialect=dialect, -2357 copy=copy, -2358 **opts, -2359 ) -2360 -2361 def select( -2362 self, -2363 *expressions: ExpOrStr, -2364 append: bool = True, -2365 dialect: DialectType = None, -2366 copy: bool = True, -2367 **opts, -2368 ) -> Select: -2369 """ -2370 Append to or set the SELECT expressions. -2371 -2372 Example: -2373 >>> Select().select("x", "y").sql() -2374 'SELECT x, y' -2375 -2376 Args: -2377 *expressions: the SQL code strings to parse. -2378 If an `Expression` instance is passed, it will be used as-is. -2379 append: if `True`, add to any existing expressions. -2380 Otherwise, this resets the expressions. -2381 dialect: the dialect used to parse the input expressions. -2382 copy: if `False`, modify this expression instance in-place. -2383 opts: other options to use to parse the input expressions. -2384 -2385 Returns: -2386 Select: the modified expression. -2387 """ -2388 return _apply_list_builder( -2389 *expressions, -2390 instance=self, -2391 arg="expressions", -2392 append=append, -2393 dialect=dialect, -2394 copy=copy, -2395 **opts, -2396 ) -2397 -2398 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2399 """ -2400 Append to or set the LATERAL expressions. -2401 -2402 Example: -2403 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() -2404 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' -2405 -2406 Args: -2407 *expressions (str | Expression): the SQL code strings to parse. -2408 If an `Expression` instance is passed, it will be used as-is. -2409 append (bool): if `True`, add to any existing expressions. -2410 Otherwise, this resets the expressions. -2411 dialect (str): the dialect used to parse the input expressions. -2412 copy (bool): if `False`, modify this expression instance in-place. -2413 opts (kwargs): other options to use to parse the input expressions. -2414 -2415 Returns: -2416 Select: the modified expression. -2417 """ -2418 return _apply_list_builder( -2419 *expressions, -2420 instance=self, -2421 arg="laterals", -2422 append=append, -2423 into=Lateral, -2424 prefix="LATERAL VIEW", -2425 dialect=dialect, -2426 copy=copy, -2427 **opts, -2428 ) +2241 +2242class Select(Subqueryable): +2243 arg_types = { +2244 "with": False, +2245 "kind": False, +2246 "expressions": False, +2247 "hint": False, +2248 "distinct": False, +2249 "into": False, +2250 "from": False, +2251 **QUERY_MODIFIERS, +2252 } +2253 +2254 def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2255 """ +2256 Set the FROM expression. +2257 +2258 Example: +2259 >>> Select().from_("tbl").select("x").sql() +2260 'SELECT x FROM tbl' +2261 +2262 Args: +2263 *expressions (str | Expression): the SQL code strings to parse. +2264 If a `From` instance is passed, this is used as-is. +2265 If another `Expression` instance is passed, it will be wrapped in a `From`. +2266 append (bool): if `True`, add to any existing expressions. +2267 Otherwise, this flattens all the `From` expression into a single expression. +2268 dialect (str): the dialect used to parse the input expression. +2269 copy (bool): if `False`, modify this expression instance in-place. +2270 opts (kwargs): other options to use to parse the input expressions. +2271 +2272 Returns: +2273 Select: the modified expression. +2274 """ +2275 return _apply_child_list_builder( +2276 *expressions, +2277 instance=self, +2278 arg="from", +2279 append=append, +2280 copy=copy, +2281 prefix="FROM", +2282 into=From, +2283 dialect=dialect, +2284 **opts, +2285 ) +2286 +2287 def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2288 """ +2289 Set the GROUP BY expression. +2290 +2291 Example: +2292 >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql() +2293 'SELECT x, COUNT(1) FROM tbl GROUP BY x' +2294 +2295 Args: +2296 *expressions (str | Expression): the SQL code strings to parse. +2297 If a `Group` instance is passed, this is used as-is. +2298 If another `Expression` instance is passed, it will be wrapped in a `Group`. +2299 If nothing is passed in then a group by is not applied to the expression +2300 append (bool): if `True`, add to any existing expressions. +2301 Otherwise, this flattens all the `Group` expression into a single expression. +2302 dialect (str): the dialect used to parse the input expression. +2303 copy (bool): if `False`, modify this expression instance in-place. +2304 opts (kwargs): other options to use to parse the input expressions. +2305 +2306 Returns: +2307 Select: the modified expression. +2308 """ +2309 if not expressions: +2310 return self if not copy else self.copy() +2311 return _apply_child_list_builder( +2312 *expressions, +2313 instance=self, +2314 arg="group", +2315 append=append, +2316 copy=copy, +2317 prefix="GROUP BY", +2318 into=Group, +2319 dialect=dialect, +2320 **opts, +2321 ) +2322 +2323 def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2324 """ +2325 Set the ORDER BY expression. +2326 +2327 Example: +2328 >>> Select().from_("tbl").select("x").order_by("x DESC").sql() +2329 'SELECT x FROM tbl ORDER BY x DESC' +2330 +2331 Args: +2332 *expressions (str | Expression): the SQL code strings to parse. +2333 If a `Group` instance is passed, this is used as-is. +2334 If another `Expression` instance is passed, it will be wrapped in a `Order`. +2335 append (bool): if `True`, add to any existing expressions. +2336 Otherwise, this flattens all the `Order` expression into a single expression. +2337 dialect (str): the dialect used to parse the input expression. +2338 copy (bool): if `False`, modify this expression instance in-place. +2339 opts (kwargs): other options to use to parse the input expressions. +2340 +2341 Returns: +2342 Select: the modified expression. +2343 """ +2344 return _apply_child_list_builder( +2345 *expressions, +2346 instance=self, +2347 arg="order", +2348 append=append, +2349 copy=copy, +2350 prefix="ORDER BY", +2351 into=Order, +2352 dialect=dialect, +2353 **opts, +2354 ) +2355 +2356 def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2357 """ +2358 Set the SORT BY expression. +2359 +2360 Example: +2361 >>> Select().from_("tbl").select("x").sort_by("x DESC").sql() +2362 'SELECT x FROM tbl SORT BY x DESC' +2363 +2364 Args: +2365 *expressions (str | Expression): the SQL code strings to parse. +2366 If a `Group` instance is passed, this is used as-is. +2367 If another `Expression` instance is passed, it will be wrapped in a `SORT`. +2368 append (bool): if `True`, add to any existing expressions. +2369 Otherwise, this flattens all the `Order` expression into a single expression. +2370 dialect (str): the dialect used to parse the input expression. +2371 copy (bool): if `False`, modify this expression instance in-place. +2372 opts (kwargs): other options to use to parse the input expressions. +2373 +2374 Returns: +2375 Select: the modified expression. +2376 """ +2377 return _apply_child_list_builder( +2378 *expressions, +2379 instance=self, +2380 arg="sort", +2381 append=append, +2382 copy=copy, +2383 prefix="SORT BY", +2384 into=Sort, +2385 dialect=dialect, +2386 **opts, +2387 ) +2388 +2389 def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2390 """ +2391 Set the CLUSTER BY expression. +2392 +2393 Example: +2394 >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql() +2395 'SELECT x FROM tbl CLUSTER BY x DESC' +2396 +2397 Args: +2398 *expressions (str | Expression): the SQL code strings to parse. +2399 If a `Group` instance is passed, this is used as-is. +2400 If another `Expression` instance is passed, it will be wrapped in a `Cluster`. +2401 append (bool): if `True`, add to any existing expressions. +2402 Otherwise, this flattens all the `Order` expression into a single expression. +2403 dialect (str): the dialect used to parse the input expression. +2404 copy (bool): if `False`, modify this expression instance in-place. +2405 opts (kwargs): other options to use to parse the input expressions. +2406 +2407 Returns: +2408 Select: the modified expression. +2409 """ +2410 return _apply_child_list_builder( +2411 *expressions, +2412 instance=self, +2413 arg="cluster", +2414 append=append, +2415 copy=copy, +2416 prefix="CLUSTER BY", +2417 into=Cluster, +2418 dialect=dialect, +2419 **opts, +2420 ) +2421 +2422 def limit(self, expression, dialect=None, copy=True, **opts) -> Select: +2423 """ +2424 Set the LIMIT expression. +2425 +2426 Example: +2427 >>> Select().from_("tbl").select("x").limit(10).sql() +2428 'SELECT x FROM tbl LIMIT 10' 2429 -2430 def join( -2431 self, -2432 expression, -2433 on=None, -2434 using=None, -2435 append=True, -2436 join_type=None, -2437 join_alias=None, -2438 dialect=None, -2439 copy=True, -2440 **opts, -2441 ) -> Select: -2442 """ -2443 Append to or set the JOIN expressions. -2444 -2445 Example: -2446 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() -2447 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' -2448 -2449 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() -2450 'SELECT 1 FROM a JOIN b USING (x, y, z)' -2451 -2452 Use `join_type` to change the type of join: -2453 -2454 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() -2455 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' +2430 Args: +2431 expression (str | int | Expression): the SQL code string to parse. +2432 This can also be an integer. +2433 If a `Limit` instance is passed, this is used as-is. +2434 If another `Expression` instance is passed, it will be wrapped in a `Limit`. +2435 dialect (str): the dialect used to parse the input expression. +2436 copy (bool): if `False`, modify this expression instance in-place. +2437 opts (kwargs): other options to use to parse the input expressions. +2438 +2439 Returns: +2440 Select: the modified expression. +2441 """ +2442 return _apply_builder( +2443 expression=expression, +2444 instance=self, +2445 arg="limit", +2446 into=Limit, +2447 prefix="LIMIT", +2448 dialect=dialect, +2449 copy=copy, +2450 **opts, +2451 ) +2452 +2453 def offset(self, expression, dialect=None, copy=True, **opts) -> Select: +2454 """ +2455 Set the OFFSET expression. 2456 -2457 Args: -2458 expression (str | Expression): the SQL code string to parse. -2459 If an `Expression` instance is passed, it will be used as-is. -2460 on (str | Expression): optionally specify the join "on" criteria as a SQL string. -2461 If an `Expression` instance is passed, it will be used as-is. -2462 using (str | Expression): optionally specify the join "using" criteria as a SQL string. -2463 If an `Expression` instance is passed, it will be used as-is. -2464 append (bool): if `True`, add to any existing expressions. -2465 Otherwise, this resets the expressions. -2466 join_type (str): If set, alter the parsed join type -2467 dialect (str): the dialect used to parse the input expressions. -2468 copy (bool): if `False`, modify this expression instance in-place. -2469 opts (kwargs): other options to use to parse the input expressions. -2470 -2471 Returns: -2472 Select: the modified expression. -2473 """ -2474 parse_args = {"dialect": dialect, **opts} -2475 -2476 try: -2477 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) -2478 except ParseError: -2479 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) -2480 -2481 join = expression if isinstance(expression, Join) else Join(this=expression) -2482 -2483 if isinstance(join.this, Select): -2484 join.this.replace(join.this.subquery()) -2485 -2486 if join_type: -2487 natural: t.Optional[Token] -2488 side: t.Optional[Token] -2489 kind: t.Optional[Token] -2490 -2491 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore -2492 -2493 if natural: -2494 join.set("natural", True) -2495 if side: -2496 join.set("side", side.text) -2497 if kind: -2498 join.set("kind", kind.text) -2499 -2500 if on: -2501 on = and_(*ensure_collection(on), dialect=dialect, **opts) -2502 join.set("on", on) -2503 -2504 if using: -2505 join = _apply_list_builder( -2506 *ensure_collection(using), -2507 instance=join, -2508 arg="using", -2509 append=append, -2510 copy=copy, -2511 **opts, -2512 ) -2513 -2514 if join_alias: -2515 join.set("this", alias_(join.this, join_alias, table=True)) -2516 return _apply_list_builder( -2517 join, -2518 instance=self, -2519 arg="joins", -2520 append=append, -2521 copy=copy, -2522 **opts, -2523 ) +2457 Example: +2458 >>> Select().from_("tbl").select("x").offset(10).sql() +2459 'SELECT x FROM tbl OFFSET 10' +2460 +2461 Args: +2462 expression (str | int | Expression): the SQL code string to parse. +2463 This can also be an integer. +2464 If a `Offset` instance is passed, this is used as-is. +2465 If another `Expression` instance is passed, it will be wrapped in a `Offset`. +2466 dialect (str): the dialect used to parse the input expression. +2467 copy (bool): if `False`, modify this expression instance in-place. +2468 opts (kwargs): other options to use to parse the input expressions. +2469 +2470 Returns: +2471 Select: the modified expression. +2472 """ +2473 return _apply_builder( +2474 expression=expression, +2475 instance=self, +2476 arg="offset", +2477 into=Offset, +2478 prefix="OFFSET", +2479 dialect=dialect, +2480 copy=copy, +2481 **opts, +2482 ) +2483 +2484 def select( +2485 self, +2486 *expressions: ExpOrStr, +2487 append: bool = True, +2488 dialect: DialectType = None, +2489 copy: bool = True, +2490 **opts, +2491 ) -> Select: +2492 """ +2493 Append to or set the SELECT expressions. +2494 +2495 Example: +2496 >>> Select().select("x", "y").sql() +2497 'SELECT x, y' +2498 +2499 Args: +2500 *expressions: the SQL code strings to parse. +2501 If an `Expression` instance is passed, it will be used as-is. +2502 append: if `True`, add to any existing expressions. +2503 Otherwise, this resets the expressions. +2504 dialect: the dialect used to parse the input expressions. +2505 copy: if `False`, modify this expression instance in-place. +2506 opts: other options to use to parse the input expressions. +2507 +2508 Returns: +2509 Select: the modified expression. +2510 """ +2511 return _apply_list_builder( +2512 *expressions, +2513 instance=self, +2514 arg="expressions", +2515 append=append, +2516 dialect=dialect, +2517 copy=copy, +2518 **opts, +2519 ) +2520 +2521 def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2522 """ +2523 Append to or set the LATERAL expressions. 2524 -2525 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2526 """ -2527 Append to or set the WHERE expressions. +2525 Example: +2526 >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql() +2527 'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z' 2528 -2529 Example: -2530 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() -2531 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" -2532 -2533 Args: -2534 *expressions (str | Expression): the SQL code strings to parse. -2535 If an `Expression` instance is passed, it will be used as-is. -2536 Multiple expressions are combined with an AND operator. -2537 append (bool): if `True`, AND the new expressions to any existing expression. -2538 Otherwise, this resets the expression. -2539 dialect (str): the dialect used to parse the input expressions. -2540 copy (bool): if `False`, modify this expression instance in-place. -2541 opts (kwargs): other options to use to parse the input expressions. -2542 -2543 Returns: -2544 Select: the modified expression. -2545 """ -2546 return _apply_conjunction_builder( -2547 *expressions, -2548 instance=self, -2549 arg="where", -2550 append=append, -2551 into=Where, -2552 dialect=dialect, -2553 copy=copy, -2554 **opts, -2555 ) -2556 -2557 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2558 """ -2559 Append to or set the HAVING expressions. -2560 -2561 Example: -2562 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() -2563 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' -2564 -2565 Args: -2566 *expressions (str | Expression): the SQL code strings to parse. -2567 If an `Expression` instance is passed, it will be used as-is. -2568 Multiple expressions are combined with an AND operator. -2569 append (bool): if `True`, AND the new expressions to any existing expression. -2570 Otherwise, this resets the expression. -2571 dialect (str): the dialect used to parse the input expressions. -2572 copy (bool): if `False`, modify this expression instance in-place. -2573 opts (kwargs): other options to use to parse the input expressions. +2529 Args: +2530 *expressions (str | Expression): the SQL code strings to parse. +2531 If an `Expression` instance is passed, it will be used as-is. +2532 append (bool): if `True`, add to any existing expressions. +2533 Otherwise, this resets the expressions. +2534 dialect (str): the dialect used to parse the input expressions. +2535 copy (bool): if `False`, modify this expression instance in-place. +2536 opts (kwargs): other options to use to parse the input expressions. +2537 +2538 Returns: +2539 Select: the modified expression. +2540 """ +2541 return _apply_list_builder( +2542 *expressions, +2543 instance=self, +2544 arg="laterals", +2545 append=append, +2546 into=Lateral, +2547 prefix="LATERAL VIEW", +2548 dialect=dialect, +2549 copy=copy, +2550 **opts, +2551 ) +2552 +2553 def join( +2554 self, +2555 expression, +2556 on=None, +2557 using=None, +2558 append=True, +2559 join_type=None, +2560 join_alias=None, +2561 dialect=None, +2562 copy=True, +2563 **opts, +2564 ) -> Select: +2565 """ +2566 Append to or set the JOIN expressions. +2567 +2568 Example: +2569 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql() +2570 'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y' +2571 +2572 >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql() +2573 'SELECT 1 FROM a JOIN b USING (x, y, z)' 2574 -2575 Returns: -2576 Select: the modified expression. -2577 """ -2578 return _apply_conjunction_builder( -2579 *expressions, -2580 instance=self, -2581 arg="having", -2582 append=append, -2583 into=Having, -2584 dialect=dialect, -2585 copy=copy, -2586 **opts, -2587 ) -2588 -2589 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2590 return _apply_list_builder( -2591 *expressions, -2592 instance=self, -2593 arg="windows", -2594 append=append, -2595 into=Window, -2596 dialect=dialect, -2597 copy=copy, -2598 **opts, -2599 ) -2600 -2601 def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: -2602 return _apply_conjunction_builder( -2603 *expressions, -2604 instance=self, -2605 arg="qualify", -2606 append=append, -2607 into=Qualify, -2608 dialect=dialect, -2609 copy=copy, -2610 **opts, -2611 ) -2612 -2613 def distinct(self, distinct=True, copy=True) -> Select: -2614 """ -2615 Set the OFFSET expression. -2616 -2617 Example: -2618 >>> Select().from_("tbl").select("x").distinct().sql() -2619 'SELECT DISTINCT x FROM tbl' -2620 -2621 Args: -2622 distinct (bool): whether the Select should be distinct -2623 copy (bool): if `False`, modify this expression instance in-place. -2624 -2625 Returns: -2626 Select: the modified expression. -2627 """ -2628 instance = _maybe_copy(self, copy) -2629 instance.set("distinct", Distinct() if distinct else None) -2630 return instance -2631 -2632 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: -2633 """ -2634 Convert this expression to a CREATE TABLE AS statement. -2635 -2636 Example: -2637 >>> Select().select("*").from_("tbl").ctas("x").sql() -2638 'CREATE TABLE x AS SELECT * FROM tbl' -2639 -2640 Args: -2641 table (str | Expression): the SQL code string to parse as the table name. -2642 If another `Expression` instance is passed, it will be used as-is. -2643 properties (dict): an optional mapping of table properties -2644 dialect (str): the dialect used to parse the input table. -2645 copy (bool): if `False`, modify this expression instance in-place. -2646 opts (kwargs): other options to use to parse the input table. +2575 Use `join_type` to change the type of join: +2576 +2577 >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql() +2578 'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y' +2579 +2580 Args: +2581 expression (str | Expression): the SQL code string to parse. +2582 If an `Expression` instance is passed, it will be used as-is. +2583 on (str | Expression): optionally specify the join "on" criteria as a SQL string. +2584 If an `Expression` instance is passed, it will be used as-is. +2585 using (str | Expression): optionally specify the join "using" criteria as a SQL string. +2586 If an `Expression` instance is passed, it will be used as-is. +2587 append (bool): if `True`, add to any existing expressions. +2588 Otherwise, this resets the expressions. +2589 join_type (str): If set, alter the parsed join type +2590 dialect (str): the dialect used to parse the input expressions. +2591 copy (bool): if `False`, modify this expression instance in-place. +2592 opts (kwargs): other options to use to parse the input expressions. +2593 +2594 Returns: +2595 Select: the modified expression. +2596 """ +2597 parse_args = {"dialect": dialect, **opts} +2598 +2599 try: +2600 expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args) +2601 except ParseError: +2602 expression = maybe_parse(expression, into=(Join, Expression), **parse_args) +2603 +2604 join = expression if isinstance(expression, Join) else Join(this=expression) +2605 +2606 if isinstance(join.this, Select): +2607 join.this.replace(join.this.subquery()) +2608 +2609 if join_type: +2610 natural: t.Optional[Token] +2611 side: t.Optional[Token] +2612 kind: t.Optional[Token] +2613 +2614 natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args) # type: ignore +2615 +2616 if natural: +2617 join.set("natural", True) +2618 if side: +2619 join.set("side", side.text) +2620 if kind: +2621 join.set("kind", kind.text) +2622 +2623 if on: +2624 on = and_(*ensure_collection(on), dialect=dialect, copy=copy, **opts) +2625 join.set("on", on) +2626 +2627 if using: +2628 join = _apply_list_builder( +2629 *ensure_collection(using), +2630 instance=join, +2631 arg="using", +2632 append=append, +2633 copy=copy, +2634 **opts, +2635 ) +2636 +2637 if join_alias: +2638 join.set("this", alias_(join.this, join_alias, table=True)) +2639 return _apply_list_builder( +2640 join, +2641 instance=self, +2642 arg="joins", +2643 append=append, +2644 copy=copy, +2645 **opts, +2646 ) 2647 -2648 Returns: -2649 Create: the CREATE TABLE AS expression -2650 """ -2651 instance = _maybe_copy(self, copy) -2652 table_expression = maybe_parse( -2653 table, -2654 into=Table, -2655 dialect=dialect, -2656 **opts, -2657 ) -2658 properties_expression = None -2659 if properties: -2660 properties_expression = Properties.from_dict(properties) -2661 -2662 return Create( -2663 this=table_expression, -2664 kind="table", -2665 expression=instance, -2666 properties=properties_expression, -2667 ) -2668 -2669 def lock(self, update: bool = True, copy: bool = True) -> Select: -2670 """ -2671 Set the locking read mode for this expression. -2672 -2673 Examples: -2674 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") -2675 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" -2676 -2677 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") -2678 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" +2648 def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2649 """ +2650 Append to or set the WHERE expressions. +2651 +2652 Example: +2653 >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql() +2654 "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'" +2655 +2656 Args: +2657 *expressions (str | Expression): the SQL code strings to parse. +2658 If an `Expression` instance is passed, it will be used as-is. +2659 Multiple expressions are combined with an AND operator. +2660 append (bool): if `True`, AND the new expressions to any existing expression. +2661 Otherwise, this resets the expression. +2662 dialect (str): the dialect used to parse the input expressions. +2663 copy (bool): if `False`, modify this expression instance in-place. +2664 opts (kwargs): other options to use to parse the input expressions. +2665 +2666 Returns: +2667 Select: the modified expression. +2668 """ +2669 return _apply_conjunction_builder( +2670 *expressions, +2671 instance=self, +2672 arg="where", +2673 append=append, +2674 into=Where, +2675 dialect=dialect, +2676 copy=copy, +2677 **opts, +2678 ) 2679 -2680 Args: -2681 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. -2682 copy: if `False`, modify this expression instance in-place. +2680 def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2681 """ +2682 Append to or set the HAVING expressions. 2683 -2684 Returns: -2685 The modified expression. -2686 """ +2684 Example: +2685 >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql() +2686 'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3' 2687 -2688 inst = _maybe_copy(self, copy) -2689 inst.set("lock", Lock(update=update)) -2690 -2691 return inst -2692 -2693 @property -2694 def named_selects(self) -> t.List[str]: -2695 return [e.output_name for e in self.expressions if e.alias_or_name] -2696 -2697 @property -2698 def is_star(self) -> bool: -2699 return any(expression.is_star for expression in self.expressions) -2700 -2701 @property -2702 def selects(self) -> t.List[Expression]: -2703 return self.expressions -2704 -2705 -2706class Subquery(DerivedTable, Unionable): -2707 arg_types = { -2708 "this": True, -2709 "alias": False, -2710 "with": False, -2711 **QUERY_MODIFIERS, -2712 } -2713 -2714 def unnest(self): -2715 """ -2716 Returns the first non subquery. -2717 """ -2718 expression = self -2719 while isinstance(expression, Subquery): -2720 expression = expression.this -2721 return expression -2722 -2723 @property -2724 def is_star(self) -> bool: -2725 return self.this.is_star -2726 -2727 @property -2728 def output_name(self): -2729 return self.alias -2730 -2731 -2732class TableSample(Expression): -2733 arg_types = { -2734 "this": False, -2735 "method": False, -2736 "bucket_numerator": False, -2737 "bucket_denominator": False, -2738 "bucket_field": False, -2739 "percent": False, -2740 "rows": False, -2741 "size": False, -2742 "seed": False, -2743 "kind": False, -2744 } -2745 -2746 -2747class Tag(Expression): -2748 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" -2749 -2750 arg_types = { -2751 "this": False, -2752 "prefix": False, -2753 "postfix": False, -2754 } -2755 +2688 Args: +2689 *expressions (str | Expression): the SQL code strings to parse. +2690 If an `Expression` instance is passed, it will be used as-is. +2691 Multiple expressions are combined with an AND operator. +2692 append (bool): if `True`, AND the new expressions to any existing expression. +2693 Otherwise, this resets the expression. +2694 dialect (str): the dialect used to parse the input expressions. +2695 copy (bool): if `False`, modify this expression instance in-place. +2696 opts (kwargs): other options to use to parse the input expressions. +2697 +2698 Returns: +2699 Select: the modified expression. +2700 """ +2701 return _apply_conjunction_builder( +2702 *expressions, +2703 instance=self, +2704 arg="having", +2705 append=append, +2706 into=Having, +2707 dialect=dialect, +2708 copy=copy, +2709 **opts, +2710 ) +2711 +2712 def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2713 return _apply_list_builder( +2714 *expressions, +2715 instance=self, +2716 arg="windows", +2717 append=append, +2718 into=Window, +2719 dialect=dialect, +2720 copy=copy, +2721 **opts, +2722 ) +2723 +2724 def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select: +2725 return _apply_conjunction_builder( +2726 *expressions, +2727 instance=self, +2728 arg="qualify", +2729 append=append, +2730 into=Qualify, +2731 dialect=dialect, +2732 copy=copy, +2733 **opts, +2734 ) +2735 +2736 def distinct(self, *ons: ExpOrStr, distinct: bool = True, copy: bool = True) -> Select: +2737 """ +2738 Set the OFFSET expression. +2739 +2740 Example: +2741 >>> Select().from_("tbl").select("x").distinct().sql() +2742 'SELECT DISTINCT x FROM tbl' +2743 +2744 Args: +2745 ons: the expressions to distinct on +2746 distinct: whether the Select should be distinct +2747 copy: if `False`, modify this expression instance in-place. +2748 +2749 Returns: +2750 Select: the modified expression. +2751 """ +2752 instance = _maybe_copy(self, copy) +2753 on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons]) if ons else None +2754 instance.set("distinct", Distinct(on=on) if distinct else None) +2755 return instance 2756 -2757class Pivot(Expression): -2758 arg_types = { -2759 "this": False, -2760 "alias": False, -2761 "expressions": True, -2762 "field": True, -2763 "unpivot": True, -2764 "columns": False, -2765 } -2766 -2767 -2768class Window(Expression): -2769 arg_types = { -2770 "this": True, -2771 "partition_by": False, -2772 "order": False, -2773 "spec": False, -2774 "alias": False, -2775 } -2776 -2777 -2778class WindowSpec(Expression): -2779 arg_types = { -2780 "kind": False, -2781 "start": False, -2782 "start_side": False, -2783 "end": False, -2784 "end_side": False, -2785 } +2757 def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: +2758 """ +2759 Convert this expression to a CREATE TABLE AS statement. +2760 +2761 Example: +2762 >>> Select().select("*").from_("tbl").ctas("x").sql() +2763 'CREATE TABLE x AS SELECT * FROM tbl' +2764 +2765 Args: +2766 table (str | Expression): the SQL code string to parse as the table name. +2767 If another `Expression` instance is passed, it will be used as-is. +2768 properties (dict): an optional mapping of table properties +2769 dialect (str): the dialect used to parse the input table. +2770 copy (bool): if `False`, modify this expression instance in-place. +2771 opts (kwargs): other options to use to parse the input table. +2772 +2773 Returns: +2774 Create: the CREATE TABLE AS expression +2775 """ +2776 instance = _maybe_copy(self, copy) +2777 table_expression = maybe_parse( +2778 table, +2779 into=Table, +2780 dialect=dialect, +2781 **opts, +2782 ) +2783 properties_expression = None +2784 if properties: +2785 properties_expression = Properties.from_dict(properties) 2786 -2787 -2788class Where(Expression): -2789 pass -2790 -2791 -2792class Star(Expression): -2793 arg_types = {"except": False, "replace": False} -2794 -2795 @property -2796 def name(self) -> str: -2797 return "*" -2798 -2799 @property -2800 def output_name(self): -2801 return self.name -2802 -2803 -2804class Parameter(Expression): -2805 arg_types = {"this": True, "wrapped": False} -2806 -2807 -2808class SessionParameter(Expression): -2809 arg_types = {"this": True, "kind": False} -2810 -2811 -2812class Placeholder(Expression): -2813 arg_types = {"this": False} -2814 +2787 return Create( +2788 this=table_expression, +2789 kind="table", +2790 expression=instance, +2791 properties=properties_expression, +2792 ) +2793 +2794 def lock(self, update: bool = True, copy: bool = True) -> Select: +2795 """ +2796 Set the locking read mode for this expression. +2797 +2798 Examples: +2799 >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql") +2800 "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE" +2801 +2802 >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql") +2803 "SELECT x FROM tbl WHERE x = 'a' FOR SHARE" +2804 +2805 Args: +2806 update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`. +2807 copy: if `False`, modify this expression instance in-place. +2808 +2809 Returns: +2810 The modified expression. +2811 """ +2812 +2813 inst = _maybe_copy(self, copy) +2814 inst.set("lock", Lock(update=update)) 2815 -2816class Null(Condition): -2817 arg_types: t.Dict[str, t.Any] = {} -2818 -2819 @property -2820 def name(self) -> str: -2821 return "NULL" -2822 -2823 -2824class Boolean(Condition): -2825 pass -2826 -2827 -2828class DataType(Expression): -2829 arg_types = { -2830 "this": True, -2831 "expressions": False, -2832 "nested": False, -2833 "values": False, -2834 "prefix": False, -2835 } -2836 -2837 class Type(AutoName): -2838 CHAR = auto() -2839 NCHAR = auto() -2840 VARCHAR = auto() -2841 NVARCHAR = auto() -2842 TEXT = auto() -2843 MEDIUMTEXT = auto() -2844 LONGTEXT = auto() -2845 MEDIUMBLOB = auto() -2846 LONGBLOB = auto() -2847 BINARY = auto() -2848 VARBINARY = auto() -2849 INT = auto() -2850 UINT = auto() -2851 TINYINT = auto() -2852 UTINYINT = auto() -2853 SMALLINT = auto() -2854 USMALLINT = auto() -2855 BIGINT = auto() -2856 UBIGINT = auto() -2857 FLOAT = auto() -2858 DOUBLE = auto() -2859 DECIMAL = auto() -2860 BIGDECIMAL = auto() -2861 BIT = auto() -2862 BOOLEAN = auto() -2863 JSON = auto() -2864 JSONB = auto() -2865 INTERVAL = auto() -2866 TIME = auto() -2867 TIMESTAMP = auto() -2868 TIMESTAMPTZ = auto() -2869 TIMESTAMPLTZ = auto() -2870 DATE = auto() -2871 DATETIME = auto() -2872 ARRAY = auto() -2873 MAP = auto() -2874 UUID = auto() -2875 GEOGRAPHY = auto() -2876 GEOMETRY = auto() -2877 STRUCT = auto() -2878 NULLABLE = auto() -2879 HLLSKETCH = auto() -2880 HSTORE = auto() -2881 SUPER = auto() -2882 SERIAL = auto() -2883 SMALLSERIAL = auto() -2884 BIGSERIAL = auto() -2885 XML = auto() -2886 UNIQUEIDENTIFIER = auto() -2887 MONEY = auto() -2888 SMALLMONEY = auto() -2889 ROWVERSION = auto() -2890 IMAGE = auto() -2891 VARIANT = auto() -2892 OBJECT = auto() -2893 INET = auto() -2894 NULL = auto() -2895 UNKNOWN = auto() # Sentinel value, useful for type annotation -2896 -2897 TEXT_TYPES = { -2898 Type.CHAR, -2899 Type.NCHAR, -2900 Type.VARCHAR, -2901 Type.NVARCHAR, -2902 Type.TEXT, -2903 } +2816 return inst +2817 +2818 @property +2819 def named_selects(self) -> t.List[str]: +2820 return [e.output_name for e in self.expressions if e.alias_or_name] +2821 +2822 @property +2823 def is_star(self) -> bool: +2824 return any(expression.is_star for expression in self.expressions) +2825 +2826 @property +2827 def selects(self) -> t.List[Expression]: +2828 return self.expressions +2829 +2830 +2831class Subquery(DerivedTable, Unionable): +2832 arg_types = { +2833 "this": True, +2834 "alias": False, +2835 "with": False, +2836 **QUERY_MODIFIERS, +2837 } +2838 +2839 def unnest(self): +2840 """ +2841 Returns the first non subquery. +2842 """ +2843 expression = self +2844 while isinstance(expression, Subquery): +2845 expression = expression.this +2846 return expression +2847 +2848 @property +2849 def is_star(self) -> bool: +2850 return self.this.is_star +2851 +2852 @property +2853 def output_name(self): +2854 return self.alias +2855 +2856 +2857class TableSample(Expression): +2858 arg_types = { +2859 "this": False, +2860 "method": False, +2861 "bucket_numerator": False, +2862 "bucket_denominator": False, +2863 "bucket_field": False, +2864 "percent": False, +2865 "rows": False, +2866 "size": False, +2867 "seed": False, +2868 "kind": False, +2869 } +2870 +2871 +2872class Tag(Expression): +2873 """Tags are used for generating arbitrary sql like SELECT <span>x</span>.""" +2874 +2875 arg_types = { +2876 "this": False, +2877 "prefix": False, +2878 "postfix": False, +2879 } +2880 +2881 +2882class Pivot(Expression): +2883 arg_types = { +2884 "this": False, +2885 "alias": False, +2886 "expressions": True, +2887 "field": True, +2888 "unpivot": True, +2889 "columns": False, +2890 } +2891 +2892 +2893class Window(Expression): +2894 arg_types = { +2895 "this": True, +2896 "partition_by": False, +2897 "order": False, +2898 "spec": False, +2899 "alias": False, +2900 "over": False, +2901 "first": False, +2902 } +2903 2904 -2905 INTEGER_TYPES = { -2906 Type.INT, -2907 Type.TINYINT, -2908 Type.SMALLINT, -2909 Type.BIGINT, -2910 } -2911 -2912 FLOAT_TYPES = { -2913 Type.FLOAT, -2914 Type.DOUBLE, -2915 } -2916 -2917 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +2905class WindowSpec(Expression): +2906 arg_types = { +2907 "kind": False, +2908 "start": False, +2909 "start_side": False, +2910 "end": False, +2911 "end_side": False, +2912 } +2913 +2914 +2915class Where(Expression): +2916 pass +2917 2918 -2919 TEMPORAL_TYPES = { -2920 Type.TIMESTAMP, -2921 Type.TIMESTAMPTZ, -2922 Type.TIMESTAMPLTZ, -2923 Type.DATE, -2924 Type.DATETIME, -2925 } -2926 -2927 @classmethod -2928 def build( -2929 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs -2930 ) -> DataType: -2931 from sqlglot import parse_one -2932 -2933 if isinstance(dtype, str): -2934 if dtype.upper() in cls.Type.__members__: -2935 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) -2936 else: -2937 data_type_exp = parse_one(dtype, read=dialect, into=DataType) -2938 if data_type_exp is None: -2939 raise ValueError(f"Unparsable data type value: {dtype}") -2940 elif isinstance(dtype, DataType.Type): -2941 data_type_exp = DataType(this=dtype) -2942 elif isinstance(dtype, DataType): -2943 return dtype -2944 else: -2945 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") -2946 return DataType(**{**data_type_exp.args, **kwargs}) -2947 -2948 def is_type(self, dtype: DataType.Type) -> bool: -2949 return self.this == dtype +2919class Star(Expression): +2920 arg_types = {"except": False, "replace": False} +2921 +2922 @property +2923 def name(self) -> str: +2924 return "*" +2925 +2926 @property +2927 def output_name(self): +2928 return self.name +2929 +2930 +2931class Parameter(Expression): +2932 arg_types = {"this": True, "wrapped": False} +2933 +2934 +2935class SessionParameter(Expression): +2936 arg_types = {"this": True, "kind": False} +2937 +2938 +2939class Placeholder(Expression): +2940 arg_types = {"this": False} +2941 +2942 +2943class Null(Condition): +2944 arg_types: t.Dict[str, t.Any] = {} +2945 +2946 @property +2947 def name(self) -> str: +2948 return "NULL" +2949 2950 -2951 -2952# https://www.postgresql.org/docs/15/datatype-pseudo.html -2953class PseudoType(Expression): -2954 pass -2955 -2956 -2957class StructKwarg(Expression): -2958 arg_types = {"this": True, "expression": True} -2959 -2960 -2961# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) -2962class SubqueryPredicate(Predicate): -2963 pass -2964 -2965 -2966class All(SubqueryPredicate): -2967 pass -2968 -2969 -2970class Any(SubqueryPredicate): -2971 pass -2972 -2973 -2974class Exists(SubqueryPredicate): -2975 pass -2976 -2977 -2978# Commands to interact with the databases or engines. For most of the command -2979# expressions we parse whatever comes after the command's name as a string. -2980class Command(Expression): -2981 arg_types = {"this": True, "expression": False} -2982 -2983 -2984class Transaction(Expression): -2985 arg_types = {"this": False, "modes": False} -2986 -2987 -2988class Commit(Expression): -2989 arg_types = {"chain": False} -2990 -2991 -2992class Rollback(Expression): -2993 arg_types = {"savepoint": False} -2994 -2995 -2996class AlterTable(Expression): -2997 arg_types = {"this": True, "actions": True, "exists": False} -2998 -2999 -3000class AddConstraint(Expression): -3001 arg_types = {"this": False, "expression": False, "enforced": False} -3002 -3003 -3004class DropPartition(Expression): -3005 arg_types = {"expressions": True, "exists": False} -3006 -3007 -3008# Binary expressions like (ADD a b) -3009class Binary(Expression): -3010 arg_types = {"this": True, "expression": True} -3011 -3012 @property -3013 def left(self): -3014 return self.this -3015 -3016 @property -3017 def right(self): -3018 return self.expression -3019 -3020 -3021class Add(Binary): -3022 pass +2951class Boolean(Condition): +2952 pass +2953 +2954 +2955class DataType(Expression): +2956 arg_types = { +2957 "this": True, +2958 "expressions": False, +2959 "nested": False, +2960 "values": False, +2961 "prefix": False, +2962 } +2963 +2964 class Type(AutoName): +2965 CHAR = auto() +2966 NCHAR = auto() +2967 VARCHAR = auto() +2968 NVARCHAR = auto() +2969 TEXT = auto() +2970 MEDIUMTEXT = auto() +2971 LONGTEXT = auto() +2972 MEDIUMBLOB = auto() +2973 LONGBLOB = auto() +2974 BINARY = auto() +2975 VARBINARY = auto() +2976 INT = auto() +2977 UINT = auto() +2978 TINYINT = auto() +2979 UTINYINT = auto() +2980 SMALLINT = auto() +2981 USMALLINT = auto() +2982 BIGINT = auto() +2983 UBIGINT = auto() +2984 FLOAT = auto() +2985 DOUBLE = auto() +2986 DECIMAL = auto() +2987 BIGDECIMAL = auto() +2988 BIT = auto() +2989 BOOLEAN = auto() +2990 JSON = auto() +2991 JSONB = auto() +2992 INTERVAL = auto() +2993 TIME = auto() +2994 TIMESTAMP = auto() +2995 TIMESTAMPTZ = auto() +2996 TIMESTAMPLTZ = auto() +2997 DATE = auto() +2998 DATETIME = auto() +2999 ARRAY = auto() +3000 MAP = auto() +3001 UUID = auto() +3002 GEOGRAPHY = auto() +3003 GEOMETRY = auto() +3004 STRUCT = auto() +3005 NULLABLE = auto() +3006 HLLSKETCH = auto() +3007 HSTORE = auto() +3008 SUPER = auto() +3009 SERIAL = auto() +3010 SMALLSERIAL = auto() +3011 BIGSERIAL = auto() +3012 XML = auto() +3013 UNIQUEIDENTIFIER = auto() +3014 MONEY = auto() +3015 SMALLMONEY = auto() +3016 ROWVERSION = auto() +3017 IMAGE = auto() +3018 VARIANT = auto() +3019 OBJECT = auto() +3020 INET = auto() +3021 NULL = auto() +3022 UNKNOWN = auto() # Sentinel value, useful for type annotation 3023 -3024 -3025class Connector(Binary, Condition): -3026 pass -3027 -3028 -3029class And(Connector): -3030 pass +3024 TEXT_TYPES = { +3025 Type.CHAR, +3026 Type.NCHAR, +3027 Type.VARCHAR, +3028 Type.NVARCHAR, +3029 Type.TEXT, +3030 } 3031 -3032 -3033class Or(Connector): -3034 pass -3035 -3036 -3037class BitwiseAnd(Binary): -3038 pass -3039 -3040 -3041class BitwiseLeftShift(Binary): -3042 pass +3032 INTEGER_TYPES = { +3033 Type.INT, +3034 Type.TINYINT, +3035 Type.SMALLINT, +3036 Type.BIGINT, +3037 } +3038 +3039 FLOAT_TYPES = { +3040 Type.FLOAT, +3041 Type.DOUBLE, +3042 } 3043 -3044 -3045class BitwiseOr(Binary): -3046 pass -3047 -3048 -3049class BitwiseRightShift(Binary): -3050 pass -3051 -3052 -3053class BitwiseXor(Binary): -3054 pass -3055 -3056 -3057class Div(Binary): -3058 pass +3044 NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES} +3045 +3046 TEMPORAL_TYPES = { +3047 Type.TIMESTAMP, +3048 Type.TIMESTAMPTZ, +3049 Type.TIMESTAMPLTZ, +3050 Type.DATE, +3051 Type.DATETIME, +3052 } +3053 +3054 @classmethod +3055 def build( +3056 cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs +3057 ) -> DataType: +3058 from sqlglot import parse_one 3059 -3060 -3061class Overlaps(Binary): -3062 pass -3063 -3064 -3065class Dot(Binary): -3066 @property -3067 def name(self) -> str: -3068 return self.expression.name -3069 -3070 @classmethod -3071 def build(self, expressions: t.Sequence[Expression]) -> Dot: -3072 """Build a Dot object with a sequence of expressions.""" -3073 if len(expressions) < 2: -3074 raise ValueError(f"Dot requires >= 2 expressions.") -3075 -3076 a, b, *expressions = expressions -3077 dot = Dot(this=a, expression=b) +3060 if isinstance(dtype, str): +3061 if dtype.upper() in cls.Type.__members__: +3062 data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()]) +3063 else: +3064 data_type_exp = parse_one(dtype, read=dialect, into=DataType) +3065 if data_type_exp is None: +3066 raise ValueError(f"Unparsable data type value: {dtype}") +3067 elif isinstance(dtype, DataType.Type): +3068 data_type_exp = DataType(this=dtype) +3069 elif isinstance(dtype, DataType): +3070 return dtype +3071 else: +3072 raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type") +3073 return DataType(**{**data_type_exp.args, **kwargs}) +3074 +3075 def is_type(self, dtype: DataType.Type) -> bool: +3076 return self.this == dtype +3077 3078 -3079 for expression in expressions: -3080 dot = Dot(this=dot, expression=expression) -3081 -3082 return dot +3079# https://www.postgresql.org/docs/15/datatype-pseudo.html +3080class PseudoType(Expression): +3081 pass +3082 3083 -3084 -3085class DPipe(Binary): -3086 pass +3084class StructKwarg(Expression): +3085 arg_types = {"this": True, "expression": True} +3086 3087 -3088 -3089class EQ(Binary, Predicate): +3088# WHERE x <OP> EXISTS|ALL|ANY|SOME(SELECT ...) +3089class SubqueryPredicate(Predicate): 3090 pass 3091 3092 -3093class NullSafeEQ(Binary, Predicate): +3093class All(SubqueryPredicate): 3094 pass 3095 3096 -3097class NullSafeNEQ(Binary, Predicate): +3097class Any(SubqueryPredicate): 3098 pass 3099 3100 -3101class Distance(Binary): +3101class Exists(SubqueryPredicate): 3102 pass 3103 3104 -3105class Escape(Binary): -3106 pass -3107 -3108 -3109class Glob(Binary, Predicate): -3110 pass -3111 -3112 -3113class GT(Binary, Predicate): -3114 pass -3115 -3116 -3117class GTE(Binary, Predicate): -3118 pass -3119 -3120 -3121class ILike(Binary, Predicate): -3122 pass -3123 -3124 -3125class ILikeAny(Binary, Predicate): -3126 pass -3127 -3128 -3129class IntDiv(Binary): -3130 pass -3131 -3132 -3133class Is(Binary, Predicate): -3134 pass -3135 -3136 -3137class Kwarg(Binary): -3138 """Kwarg in special functions like func(kwarg => y).""" -3139 -3140 -3141class Like(Binary, Predicate): -3142 pass -3143 -3144 -3145class LikeAny(Binary, Predicate): -3146 pass +3105# Commands to interact with the databases or engines. For most of the command +3106# expressions we parse whatever comes after the command's name as a string. +3107class Command(Expression): +3108 arg_types = {"this": True, "expression": False} +3109 +3110 +3111class Transaction(Expression): +3112 arg_types = {"this": False, "modes": False} +3113 +3114 +3115class Commit(Expression): +3116 arg_types = {"chain": False} +3117 +3118 +3119class Rollback(Expression): +3120 arg_types = {"savepoint": False} +3121 +3122 +3123class AlterTable(Expression): +3124 arg_types = {"this": True, "actions": True, "exists": False} +3125 +3126 +3127class AddConstraint(Expression): +3128 arg_types = {"this": False, "expression": False, "enforced": False} +3129 +3130 +3131class DropPartition(Expression): +3132 arg_types = {"expressions": True, "exists": False} +3133 +3134 +3135# Binary expressions like (ADD a b) +3136class Binary(Condition): +3137 arg_types = {"this": True, "expression": True} +3138 +3139 @property +3140 def left(self): +3141 return self.this +3142 +3143 @property +3144 def right(self): +3145 return self.expression +3146 3147 -3148 -3149class LT(Binary, Predicate): -3150 pass +3148class Add(Binary): +3149 pass +3150 3151 -3152 -3153class LTE(Binary, Predicate): -3154 pass +3152class Connector(Binary): +3153 pass +3154 3155 -3156 -3157class Mod(Binary): -3158 pass +3156class And(Connector): +3157 pass +3158 3159 -3160 -3161class Mul(Binary): -3162 pass +3160class Or(Connector): +3161 pass +3162 3163 -3164 -3165class NEQ(Binary, Predicate): -3166 pass +3164class BitwiseAnd(Binary): +3165 pass +3166 3167 -3168 -3169class SimilarTo(Binary, Predicate): -3170 pass +3168class BitwiseLeftShift(Binary): +3169 pass +3170 3171 -3172 -3173class Slice(Binary): -3174 arg_types = {"this": False, "expression": False} +3172class BitwiseOr(Binary): +3173 pass +3174 3175 -3176 -3177class Sub(Binary): -3178 pass +3176class BitwiseRightShift(Binary): +3177 pass +3178 3179 -3180 -3181class ArrayOverlaps(Binary): -3182 pass +3180class BitwiseXor(Binary): +3181 pass +3182 3183 -3184 -3185# Unary Expressions -3186# (NOT a) -3187class Unary(Expression): -3188 pass -3189 +3184class Div(Binary): +3185 pass +3186 +3187 +3188class Overlaps(Binary): +3189 pass 3190 -3191class BitwiseNot(Unary): -3192 pass -3193 -3194 -3195class Not(Unary, Condition): -3196 pass -3197 -3198 -3199class Paren(Unary, Condition): -3200 arg_types = {"this": True, "with": False} -3201 +3191 +3192class Dot(Binary): +3193 @property +3194 def name(self) -> str: +3195 return self.expression.name +3196 +3197 @classmethod +3198 def build(self, expressions: t.Sequence[Expression]) -> Dot: +3199 """Build a Dot object with a sequence of expressions.""" +3200 if len(expressions) < 2: +3201 raise ValueError(f"Dot requires >= 2 expressions.") 3202 -3203class Neg(Unary): -3204 pass +3203 a, b, *expressions = expressions +3204 dot = Dot(this=a, expression=b) 3205 -3206 -3207class Alias(Expression): -3208 arg_types = {"this": True, "alias": False} -3209 -3210 @property -3211 def output_name(self): -3212 return self.alias -3213 +3206 for expression in expressions: +3207 dot = Dot(this=dot, expression=expression) +3208 +3209 return dot +3210 +3211 +3212class DPipe(Binary): +3213 pass 3214 -3215class Aliases(Expression): -3216 arg_types = {"this": True, "expressions": True} -3217 -3218 @property -3219 def aliases(self): -3220 return self.expressions -3221 +3215 +3216class EQ(Binary, Predicate): +3217 pass +3218 +3219 +3220class NullSafeEQ(Binary, Predicate): +3221 pass 3222 -3223class AtTimeZone(Expression): -3224 arg_types = {"this": True, "zone": True} -3225 +3223 +3224class NullSafeNEQ(Binary, Predicate): +3225 pass 3226 -3227class Between(Predicate): -3228 arg_types = {"this": True, "low": True, "high": True} -3229 +3227 +3228class Distance(Binary): +3229 pass 3230 -3231class Bracket(Condition): -3232 arg_types = {"this": True, "expressions": True} -3233 +3231 +3232class Escape(Binary): +3233 pass 3234 -3235class Distinct(Expression): -3236 arg_types = {"expressions": False, "on": False} -3237 +3235 +3236class Glob(Binary, Predicate): +3237 pass 3238 -3239class In(Predicate): -3240 arg_types = { -3241 "this": True, -3242 "expressions": False, -3243 "query": False, -3244 "unnest": False, -3245 "field": False, -3246 "is_global": False, -3247 } -3248 -3249 -3250class TimeUnit(Expression): -3251 """Automatically converts unit arg into a var.""" -3252 -3253 arg_types = {"unit": False} +3239 +3240class GT(Binary, Predicate): +3241 pass +3242 +3243 +3244class GTE(Binary, Predicate): +3245 pass +3246 +3247 +3248class ILike(Binary, Predicate): +3249 pass +3250 +3251 +3252class ILikeAny(Binary, Predicate): +3253 pass 3254 -3255 def __init__(self, **args): -3256 unit = args.get("unit") -3257 if isinstance(unit, (Column, Literal)): -3258 args["unit"] = Var(this=unit.name) -3259 elif isinstance(unit, Week): -3260 unit.set("this", Var(this=unit.this.name)) -3261 super().__init__(**args) +3255 +3256class IntDiv(Binary): +3257 pass +3258 +3259 +3260class Is(Binary, Predicate): +3261 pass 3262 3263 -3264class Interval(TimeUnit): -3265 arg_types = {"this": False, "unit": False} +3264class Kwarg(Binary): +3265 """Kwarg in special functions like func(kwarg => y).""" 3266 3267 -3268class IgnoreNulls(Expression): +3268class Like(Binary, Predicate): 3269 pass 3270 3271 -3272class RespectNulls(Expression): +3272class LikeAny(Binary, Predicate): 3273 pass 3274 3275 -3276# Functions -3277class Func(Condition): -3278 """ -3279 The base class for all function expressions. -3280 -3281 Attributes: -3282 is_var_len_args (bool): if set to True the last argument defined in arg_types will be -3283 treated as a variable length argument and the argument's value will be stored as a list. -3284 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) -3285 for this function expression. These values are used to map this node to a name during parsing -3286 as well as to provide the function's name during SQL string generation. By default the SQL -3287 name is set to the expression's class name transformed to snake case. -3288 """ -3289 -3290 is_var_len_args = False +3276class LT(Binary, Predicate): +3277 pass +3278 +3279 +3280class LTE(Binary, Predicate): +3281 pass +3282 +3283 +3284class Mod(Binary): +3285 pass +3286 +3287 +3288class Mul(Binary): +3289 pass +3290 3291 -3292 @classmethod -3293 def from_arg_list(cls, args): -3294 if cls.is_var_len_args: -3295 all_arg_keys = list(cls.arg_types) -3296 # If this function supports variable length argument treat the last argument as such. -3297 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys -3298 num_non_var = len(non_var_len_arg_keys) +3292class NEQ(Binary, Predicate): +3293 pass +3294 +3295 +3296class SimilarTo(Binary, Predicate): +3297 pass +3298 3299 -3300 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} -3301 args_dict[all_arg_keys[-1]] = args[num_non_var:] -3302 else: -3303 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} -3304 -3305 return cls(**args_dict) +3300class Slice(Binary): +3301 arg_types = {"this": False, "expression": False} +3302 +3303 +3304class Sub(Binary): +3305 pass 3306 -3307 @classmethod -3308 def sql_names(cls): -3309 if cls is Func: -3310 raise NotImplementedError( -3311 "SQL name is only supported by concrete function implementations" -3312 ) -3313 if "_sql_names" not in cls.__dict__: -3314 cls._sql_names = [camel_to_snake_case(cls.__name__)] -3315 return cls._sql_names +3307 +3308class ArrayOverlaps(Binary): +3309 pass +3310 +3311 +3312# Unary Expressions +3313# (NOT a) +3314class Unary(Condition): +3315 pass 3316 -3317 @classmethod -3318 def sql_name(cls): -3319 return cls.sql_names()[0] +3317 +3318class BitwiseNot(Unary): +3319 pass 3320 -3321 @classmethod -3322 def default_parser_mappings(cls): -3323 return {name: cls.from_arg_list for name in cls.sql_names()} +3321 +3322class Not(Unary): +3323 pass 3324 3325 -3326class AggFunc(Func): -3327 pass +3326class Paren(Unary): +3327 arg_types = {"this": True, "with": False} 3328 3329 -3330class Abs(Func): +3330class Neg(Unary): 3331 pass 3332 3333 -3334class Anonymous(Func): -3335 arg_types = {"this": True, "expressions": False} -3336 is_var_len_args = True -3337 -3338 -3339# https://docs.snowflake.com/en/sql-reference/functions/hll -3340# https://docs.aws.amazon.com/redshift/latest/dg/r_HLL_function.html -3341class Hll(AggFunc): -3342 arg_types = {"this": True, "expressions": False} -3343 is_var_len_args = True +3334class Alias(Expression): +3335 arg_types = {"this": True, "alias": False} +3336 +3337 @property +3338 def output_name(self): +3339 return self.alias +3340 +3341 +3342class Aliases(Expression): +3343 arg_types = {"this": True, "expressions": True} 3344 -3345 -3346class ApproxDistinct(AggFunc): -3347 arg_types = {"this": True, "accuracy": False} +3345 @property +3346 def aliases(self): +3347 return self.expressions 3348 3349 -3350class Array(Func): -3351 arg_types = {"expressions": False} -3352 is_var_len_args = True +3350class AtTimeZone(Expression): +3351 arg_types = {"this": True, "zone": True} +3352 3353 -3354 -3355# https://docs.snowflake.com/en/sql-reference/functions/to_char -3356class ToChar(Func): -3357 arg_types = {"this": True, "format": False} -3358 -3359 -3360class GenerateSeries(Func): -3361 arg_types = {"start": True, "end": True, "step": False} -3362 -3363 -3364class ArrayAgg(AggFunc): -3365 pass -3366 -3367 -3368class ArrayAll(Func): -3369 arg_types = {"this": True, "expression": True} -3370 -3371 -3372class ArrayAny(Func): -3373 arg_types = {"this": True, "expression": True} -3374 +3354class Between(Predicate): +3355 arg_types = {"this": True, "low": True, "high": True} +3356 +3357 +3358class Bracket(Condition): +3359 arg_types = {"this": True, "expressions": True} +3360 +3361 +3362class Distinct(Expression): +3363 arg_types = {"expressions": False, "on": False} +3364 +3365 +3366class In(Predicate): +3367 arg_types = { +3368 "this": True, +3369 "expressions": False, +3370 "query": False, +3371 "unnest": False, +3372 "field": False, +3373 "is_global": False, +3374 } 3375 -3376class ArrayConcat(Func): -3377 arg_types = {"this": True, "expressions": False} -3378 is_var_len_args = True +3376 +3377class TimeUnit(Expression): +3378 """Automatically converts unit arg into a var.""" 3379 -3380 -3381class ArrayContains(Binary, Func): -3382 pass -3383 -3384 -3385class ArrayContained(Binary): -3386 pass -3387 -3388 -3389class ArrayFilter(Func): -3390 arg_types = {"this": True, "expression": True} -3391 _sql_names = ["FILTER", "ARRAY_FILTER"] -3392 +3380 arg_types = {"unit": False} +3381 +3382 def __init__(self, **args): +3383 unit = args.get("unit") +3384 if isinstance(unit, (Column, Literal)): +3385 args["unit"] = Var(this=unit.name) +3386 elif isinstance(unit, Week): +3387 unit.set("this", Var(this=unit.this.name)) +3388 super().__init__(**args) +3389 +3390 +3391class Interval(TimeUnit): +3392 arg_types = {"this": False, "unit": False} 3393 -3394class ArrayJoin(Func): -3395 arg_types = {"this": True, "expression": True, "null": False} -3396 +3394 +3395class IgnoreNulls(Expression): +3396 pass 3397 -3398class ArraySize(Func): -3399 arg_types = {"this": True, "expression": False} -3400 +3398 +3399class RespectNulls(Expression): +3400 pass 3401 -3402class ArraySort(Func): -3403 arg_types = {"this": True, "expression": False} -3404 -3405 -3406class ArraySum(Func): -3407 pass -3408 -3409 -3410class ArrayUnionAgg(AggFunc): -3411 pass -3412 -3413 -3414class Avg(AggFunc): -3415 pass +3402 +3403# Functions +3404class Func(Condition): +3405 """ +3406 The base class for all function expressions. +3407 +3408 Attributes: +3409 is_var_len_args (bool): if set to True the last argument defined in arg_types will be +3410 treated as a variable length argument and the argument's value will be stored as a list. +3411 _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items) +3412 for this function expression. These values are used to map this node to a name during parsing +3413 as well as to provide the function's name during SQL string generation. By default the SQL +3414 name is set to the expression's class name transformed to snake case. +3415 """ 3416 -3417 -3418class AnyValue(AggFunc): -3419 pass -3420 -3421 -3422class Case(Func): -3423 arg_types = {"this": False, "ifs": True, "default": False} -3424 -3425 -3426class Cast(Func): -3427 arg_types = {"this": True, "to": True} -3428 -3429 @property -3430 def name(self) -> str: -3431 return self.this.name -3432 -3433 @property -3434 def to(self): -3435 return self.args["to"] -3436 -3437 @property -3438 def output_name(self): -3439 return self.name -3440 -3441 def is_type(self, dtype: DataType.Type) -> bool: -3442 return self.to.is_type(dtype) +3417 is_var_len_args = False +3418 +3419 @classmethod +3420 def from_arg_list(cls, args): +3421 if cls.is_var_len_args: +3422 all_arg_keys = list(cls.arg_types) +3423 # If this function supports variable length argument treat the last argument as such. +3424 non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys +3425 num_non_var = len(non_var_len_arg_keys) +3426 +3427 args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)} +3428 args_dict[all_arg_keys[-1]] = args[num_non_var:] +3429 else: +3430 args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)} +3431 +3432 return cls(**args_dict) +3433 +3434 @classmethod +3435 def sql_names(cls): +3436 if cls is Func: +3437 raise NotImplementedError( +3438 "SQL name is only supported by concrete function implementations" +3439 ) +3440 if "_sql_names" not in cls.__dict__: +3441 cls._sql_names = [camel_to_snake_case(cls.__name__)] +3442 return cls._sql_names 3443 -3444 -3445class Collate(Binary): -3446 pass +3444 @classmethod +3445 def sql_name(cls): +3446 return cls.sql_names()[0] 3447 -3448 -3449class TryCast(Cast): -3450 pass +3448 @classmethod +3449 def default_parser_mappings(cls): +3450 return {name: cls.from_arg_list for name in cls.sql_names()} 3451 3452 -3453class Ceil(Func): -3454 arg_types = {"this": True, "decimals": False} -3455 _sql_names = ["CEIL", "CEILING"] +3453class AggFunc(Func): +3454 pass +3455 3456 -3457 -3458class Coalesce(Func): -3459 arg_types = {"this": True, "expressions": False} -3460 is_var_len_args = True -3461 -3462 -3463class Concat(Func): -3464 arg_types = {"expressions": True} -3465 is_var_len_args = True -3466 -3467 -3468class ConcatWs(Concat): -3469 _sql_names = ["CONCAT_WS"] -3470 +3457class Abs(Func): +3458 pass +3459 +3460 +3461class Anonymous(Func): +3462 arg_types = {"this": True, "expressions": False} +3463 is_var_len_args = True +3464 +3465 +3466# https://docs.snowflake.com/en/sql-reference/functions/hll +3467# https://docs.aws.amazon.com/redshift/latest/dg/r_HLL_function.html +3468class Hll(AggFunc): +3469 arg_types = {"this": True, "expressions": False} +3470 is_var_len_args = True 3471 -3472class Count(AggFunc): -3473 arg_types = {"this": False} -3474 +3472 +3473class ApproxDistinct(AggFunc): +3474 arg_types = {"this": True, "accuracy": False} 3475 -3476class CountIf(AggFunc): -3477 pass -3478 -3479 -3480class CurrentDate(Func): -3481 arg_types = {"this": False} -3482 -3483 -3484class CurrentDatetime(Func): -3485 arg_types = {"this": False} +3476 +3477class Array(Func): +3478 arg_types = {"expressions": False} +3479 is_var_len_args = True +3480 +3481 +3482# https://docs.snowflake.com/en/sql-reference/functions/to_char +3483class ToChar(Func): +3484 arg_types = {"this": True, "format": False} +3485 3486 -3487 -3488class CurrentTime(Func): -3489 arg_types = {"this": False} +3487class GenerateSeries(Func): +3488 arg_types = {"start": True, "end": True, "step": False} +3489 3490 -3491 -3492class CurrentTimestamp(Func): -3493 arg_types = {"this": False} +3491class ArrayAgg(AggFunc): +3492 pass +3493 3494 -3495 -3496class CurrentUser(Func): -3497 arg_types = {"this": False} +3495class ArrayAll(Func): +3496 arg_types = {"this": True, "expression": True} +3497 3498 -3499 -3500class DateAdd(Func, TimeUnit): -3501 arg_types = {"this": True, "expression": True, "unit": False} +3499class ArrayAny(Func): +3500 arg_types = {"this": True, "expression": True} +3501 3502 -3503 -3504class DateSub(Func, TimeUnit): -3505 arg_types = {"this": True, "expression": True, "unit": False} +3503class ArrayConcat(Func): +3504 arg_types = {"this": True, "expressions": False} +3505 is_var_len_args = True 3506 3507 -3508class DateDiff(Func, TimeUnit): -3509 _sql_names = ["DATEDIFF", "DATE_DIFF"] -3510 arg_types = {"this": True, "expression": True, "unit": False} +3508class ArrayContains(Binary, Func): +3509 pass +3510 3511 -3512 -3513class DateTrunc(Func): -3514 arg_types = {"unit": True, "this": True, "zone": False} +3512class ArrayContained(Binary): +3513 pass +3514 3515 -3516 -3517class DatetimeAdd(Func, TimeUnit): -3518 arg_types = {"this": True, "expression": True, "unit": False} +3516class ArrayFilter(Func): +3517 arg_types = {"this": True, "expression": True} +3518 _sql_names = ["FILTER", "ARRAY_FILTER"] 3519 3520 -3521class DatetimeSub(Func, TimeUnit): -3522 arg_types = {"this": True, "expression": True, "unit": False} +3521class ArrayJoin(Func): +3522 arg_types = {"this": True, "expression": True, "null": False} 3523 3524 -3525class DatetimeDiff(Func, TimeUnit): -3526 arg_types = {"this": True, "expression": True, "unit": False} +3525class ArraySize(Func): +3526 arg_types = {"this": True, "expression": False} 3527 3528 -3529class DatetimeTrunc(Func, TimeUnit): -3530 arg_types = {"this": True, "unit": True, "zone": False} +3529class ArraySort(Func): +3530 arg_types = {"this": True, "expression": False} 3531 3532 -3533class DayOfWeek(Func): -3534 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] +3533class ArraySum(Func): +3534 pass 3535 3536 -3537class DayOfMonth(Func): -3538 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] +3537class ArrayUnionAgg(AggFunc): +3538 pass 3539 3540 -3541class DayOfYear(Func): -3542 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] +3541class Avg(AggFunc): +3542 pass 3543 3544 -3545class WeekOfYear(Func): -3546 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] +3545class AnyValue(AggFunc): +3546 pass 3547 3548 -3549class LastDateOfMonth(Func): -3550 pass +3549class Case(Func): +3550 arg_types = {"this": False, "ifs": True, "default": False} 3551 -3552 -3553class Extract(Func): -3554 arg_types = {"this": True, "expression": True} -3555 -3556 -3557class TimestampAdd(Func, TimeUnit): -3558 arg_types = {"this": True, "expression": True, "unit": False} -3559 -3560 -3561class TimestampSub(Func, TimeUnit): -3562 arg_types = {"this": True, "expression": True, "unit": False} -3563 -3564 -3565class TimestampDiff(Func, TimeUnit): -3566 arg_types = {"this": True, "expression": True, "unit": False} +3552 def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case: +3553 instance = _maybe_copy(self, copy) +3554 instance.append( +3555 "ifs", +3556 If( +3557 this=maybe_parse(condition, copy=copy, **opts), +3558 true=maybe_parse(then, copy=copy, **opts), +3559 ), +3560 ) +3561 return instance +3562 +3563 def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case: +3564 instance = _maybe_copy(self, copy) +3565 instance.set("default", maybe_parse(condition, copy=copy, **opts)) +3566 return instance 3567 3568 -3569class TimestampTrunc(Func, TimeUnit): -3570 arg_types = {"this": True, "unit": True, "zone": False} +3569class Cast(Func): +3570 arg_types = {"this": True, "to": True} 3571 -3572 -3573class TimeAdd(Func, TimeUnit): -3574 arg_types = {"this": True, "expression": True, "unit": False} +3572 @property +3573 def name(self) -> str: +3574 return self.this.name 3575 -3576 -3577class TimeSub(Func, TimeUnit): -3578 arg_types = {"this": True, "expression": True, "unit": False} +3576 @property +3577 def to(self): +3578 return self.args["to"] 3579 -3580 -3581class TimeDiff(Func, TimeUnit): -3582 arg_types = {"this": True, "expression": True, "unit": False} +3580 @property +3581 def output_name(self): +3582 return self.name 3583 -3584 -3585class TimeTrunc(Func, TimeUnit): -3586 arg_types = {"this": True, "unit": True, "zone": False} +3584 def is_type(self, dtype: DataType.Type) -> bool: +3585 return self.to.is_type(dtype) +3586 3587 -3588 -3589class DateFromParts(Func): -3590 _sql_names = ["DATEFROMPARTS"] -3591 arg_types = {"year": True, "month": True, "day": True} -3592 -3593 -3594class DateStrToDate(Func): -3595 pass -3596 -3597 -3598class DateToDateStr(Func): -3599 pass +3588class Collate(Binary): +3589 pass +3590 +3591 +3592class TryCast(Cast): +3593 pass +3594 +3595 +3596class Ceil(Func): +3597 arg_types = {"this": True, "decimals": False} +3598 _sql_names = ["CEIL", "CEILING"] +3599 3600 -3601 -3602class DateToDi(Func): -3603 pass +3601class Coalesce(Func): +3602 arg_types = {"this": True, "expressions": False} +3603 is_var_len_args = True 3604 3605 -3606class Day(Func): -3607 pass -3608 +3606class Concat(Func): +3607 arg_types = {"expressions": True} +3608 is_var_len_args = True 3609 -3610class Decode(Func): -3611 arg_types = {"this": True, "charset": True, "replace": False} -3612 +3610 +3611class ConcatWs(Concat): +3612 _sql_names = ["CONCAT_WS"] 3613 -3614class DiToDate(Func): -3615 pass -3616 +3614 +3615class Count(AggFunc): +3616 arg_types = {"this": False} 3617 -3618class Encode(Func): -3619 arg_types = {"this": True, "charset": True} -3620 +3618 +3619class CountIf(AggFunc): +3620 pass 3621 -3622class Exp(Func): -3623 pass -3624 +3622 +3623class CurrentDate(Func): +3624 arg_types = {"this": False} 3625 -3626class Explode(Func): -3627 pass -3628 +3626 +3627class CurrentDatetime(Func): +3628 arg_types = {"this": False} 3629 -3630class ExponentialTimeDecayedAvg(AggFunc): -3631 arg_types = {"this": True, "time": False, "decay": False} -3632 +3630 +3631class CurrentTime(Func): +3632 arg_types = {"this": False} 3633 -3634class Floor(Func): -3635 arg_types = {"this": True, "decimals": False} -3636 +3634 +3635class CurrentTimestamp(Func): +3636 arg_types = {"this": False} 3637 -3638class Greatest(Func): -3639 arg_types = {"this": True, "expressions": False} -3640 is_var_len_args = True +3638 +3639class CurrentUser(Func): +3640 arg_types = {"this": False} 3641 3642 -3643class GroupConcat(Func): -3644 arg_types = {"this": True, "separator": False} +3643class DateAdd(Func, TimeUnit): +3644 arg_types = {"this": True, "expression": True, "unit": False} 3645 3646 -3647class GroupUniqArray(AggFunc): -3648 arg_types = {"this": True, "size": False} +3647class DateSub(Func, TimeUnit): +3648 arg_types = {"this": True, "expression": True, "unit": False} 3649 3650 -3651class Hex(Func): -3652 pass -3653 +3651class DateDiff(Func, TimeUnit): +3652 _sql_names = ["DATEDIFF", "DATE_DIFF"] +3653 arg_types = {"this": True, "expression": True, "unit": False} 3654 -3655class Histogram(AggFunc): -3656 arg_types = {"this": True, "bins": False} -3657 +3655 +3656class DateTrunc(Func): +3657 arg_types = {"unit": True, "this": True, "zone": False} 3658 -3659class If(Func): -3660 arg_types = {"this": True, "true": True, "false": False} -3661 +3659 +3660class DatetimeAdd(Func, TimeUnit): +3661 arg_types = {"this": True, "expression": True, "unit": False} 3662 -3663class IfNull(Func): -3664 arg_types = {"this": True, "expression": False} -3665 _sql_names = ["IFNULL", "NVL"] +3663 +3664class DatetimeSub(Func, TimeUnit): +3665 arg_types = {"this": True, "expression": True, "unit": False} 3666 3667 -3668class Initcap(Func): -3669 pass +3668class DatetimeDiff(Func, TimeUnit): +3669 arg_types = {"this": True, "expression": True, "unit": False} 3670 3671 -3672class JSONKeyValue(Expression): -3673 arg_types = {"this": True, "expression": True} +3672class DatetimeTrunc(Func, TimeUnit): +3673 arg_types = {"this": True, "unit": True, "zone": False} 3674 3675 -3676class JSONObject(Func): -3677 arg_types = { -3678 "expressions": False, -3679 "null_handling": False, -3680 "unique_keys": False, -3681 "return_type": False, -3682 "format_json": False, -3683 "encoding": False, -3684 } -3685 +3676class DayOfWeek(Func): +3677 _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"] +3678 +3679 +3680class DayOfMonth(Func): +3681 _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"] +3682 +3683 +3684class DayOfYear(Func): +3685 _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"] 3686 -3687class JSONBContains(Binary): -3688 _sql_names = ["JSONB_CONTAINS"] -3689 +3687 +3688class WeekOfYear(Func): +3689 _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"] 3690 -3691class JSONExtract(Binary, Func): -3692 _sql_names = ["JSON_EXTRACT"] -3693 +3691 +3692class LastDateOfMonth(Func): +3693 pass 3694 -3695class JSONExtractScalar(JSONExtract): -3696 _sql_names = ["JSON_EXTRACT_SCALAR"] -3697 +3695 +3696class Extract(Func): +3697 arg_types = {"this": True, "expression": True} 3698 -3699class JSONBExtract(JSONExtract): -3700 _sql_names = ["JSONB_EXTRACT"] -3701 +3699 +3700class TimestampAdd(Func, TimeUnit): +3701 arg_types = {"this": True, "expression": True, "unit": False} 3702 -3703class JSONBExtractScalar(JSONExtract): -3704 _sql_names = ["JSONB_EXTRACT_SCALAR"] -3705 +3703 +3704class TimestampSub(Func, TimeUnit): +3705 arg_types = {"this": True, "expression": True, "unit": False} 3706 -3707class JSONFormat(Func): -3708 arg_types = {"this": False, "options": False} -3709 _sql_names = ["JSON_FORMAT"] +3707 +3708class TimestampDiff(Func, TimeUnit): +3709 arg_types = {"this": True, "expression": True, "unit": False} 3710 3711 -3712class Least(Func): -3713 arg_types = {"expressions": False} -3714 is_var_len_args = True +3712class TimestampTrunc(Func, TimeUnit): +3713 arg_types = {"this": True, "unit": True, "zone": False} +3714 3715 -3716 -3717class Length(Func): -3718 pass +3716class TimeAdd(Func, TimeUnit): +3717 arg_types = {"this": True, "expression": True, "unit": False} +3718 3719 -3720 -3721class Levenshtein(Func): -3722 arg_types = { -3723 "this": True, -3724 "expression": False, -3725 "ins_cost": False, -3726 "del_cost": False, -3727 "sub_cost": False, -3728 } -3729 +3720class TimeSub(Func, TimeUnit): +3721 arg_types = {"this": True, "expression": True, "unit": False} +3722 +3723 +3724class TimeDiff(Func, TimeUnit): +3725 arg_types = {"this": True, "expression": True, "unit": False} +3726 +3727 +3728class TimeTrunc(Func, TimeUnit): +3729 arg_types = {"this": True, "unit": True, "zone": False} 3730 -3731class Ln(Func): -3732 pass -3733 -3734 -3735class Log(Func): -3736 arg_types = {"this": True, "expression": False} -3737 -3738 -3739class Log2(Func): -3740 pass -3741 -3742 -3743class Log10(Func): -3744 pass -3745 -3746 -3747class LogicalOr(AggFunc): -3748 _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"] -3749 -3750 -3751class LogicalAnd(AggFunc): -3752 _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"] -3753 -3754 -3755class Lower(Func): -3756 _sql_names = ["LOWER", "LCASE"] -3757 -3758 -3759class Map(Func): -3760 arg_types = {"keys": False, "values": False} -3761 -3762 -3763class StarMap(Func): -3764 pass -3765 -3766 -3767class VarMap(Func): -3768 arg_types = {"keys": True, "values": True} -3769 is_var_len_args = True -3770 +3731 +3732class DateFromParts(Func): +3733 _sql_names = ["DATEFROMPARTS"] +3734 arg_types = {"year": True, "month": True, "day": True} +3735 +3736 +3737class DateStrToDate(Func): +3738 pass +3739 +3740 +3741class DateToDateStr(Func): +3742 pass +3743 +3744 +3745class DateToDi(Func): +3746 pass +3747 +3748 +3749class Day(Func): +3750 pass +3751 +3752 +3753class Decode(Func): +3754 arg_types = {"this": True, "charset": True, "replace": False} +3755 +3756 +3757class DiToDate(Func): +3758 pass +3759 +3760 +3761class Encode(Func): +3762 arg_types = {"this": True, "charset": True} +3763 +3764 +3765class Exp(Func): +3766 pass +3767 +3768 +3769class Explode(Func): +3770 pass 3771 -3772# https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html -3773class MatchAgainst(Func): -3774 arg_types = {"this": True, "expressions": True, "modifier": False} +3772 +3773class ExponentialTimeDecayedAvg(AggFunc): +3774 arg_types = {"this": True, "time": False, "decay": False} 3775 3776 -3777class Max(AggFunc): -3778 arg_types = {"this": True, "expressions": False} -3779 is_var_len_args = True +3777class Floor(Func): +3778 arg_types = {"this": True, "decimals": False} +3779 3780 -3781 -3782class MD5(Func): -3783 _sql_names = ["MD5"] +3781class Greatest(Func): +3782 arg_types = {"this": True, "expressions": False} +3783 is_var_len_args = True 3784 3785 -3786class Min(AggFunc): -3787 arg_types = {"this": True, "expressions": False} -3788 is_var_len_args = True +3786class GroupConcat(Func): +3787 arg_types = {"this": True, "separator": False} +3788 3789 -3790 -3791class Month(Func): -3792 pass +3790class GroupUniqArray(AggFunc): +3791 arg_types = {"this": True, "size": False} +3792 3793 -3794 -3795class Nvl2(Func): -3796 arg_types = {"this": True, "true": True, "false": False} +3794class Hex(Func): +3795 pass +3796 3797 -3798 -3799class Posexplode(Func): -3800 pass +3798class Histogram(AggFunc): +3799 arg_types = {"this": True, "bins": False} +3800 3801 -3802 -3803class Pow(Binary, Func): -3804 _sql_names = ["POWER", "POW"] +3802class If(Func): +3803 arg_types = {"this": True, "true": True, "false": False} +3804 3805 -3806 -3807class PercentileCont(AggFunc): -3808 pass +3806class IfNull(Func): +3807 arg_types = {"this": True, "expression": False} +3808 _sql_names = ["IFNULL", "NVL"] 3809 3810 -3811class PercentileDisc(AggFunc): +3811class Initcap(Func): 3812 pass 3813 3814 -3815class Quantile(AggFunc): -3816 arg_types = {"this": True, "quantile": True} +3815class JSONKeyValue(Expression): +3816 arg_types = {"this": True, "expression": True} 3817 3818 -3819# Clickhouse-specific: -3820# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles -3821class Quantiles(AggFunc): -3822 arg_types = {"parameters": True, "expressions": True} -3823 is_var_len_args = True -3824 -3825 -3826class QuantileIf(AggFunc): -3827 arg_types = {"parameters": True, "expressions": True} +3819class JSONObject(Func): +3820 arg_types = { +3821 "expressions": False, +3822 "null_handling": False, +3823 "unique_keys": False, +3824 "return_type": False, +3825 "format_json": False, +3826 "encoding": False, +3827 } 3828 3829 -3830class ApproxQuantile(Quantile): -3831 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3830class JSONBContains(Binary): +3831 _sql_names = ["JSONB_CONTAINS"] 3832 3833 -3834class RangeN(Func): -3835 arg_types = {"this": True, "expressions": True, "each": False} +3834class JSONExtract(Binary, Func): +3835 _sql_names = ["JSON_EXTRACT"] 3836 3837 -3838class ReadCSV(Func): -3839 _sql_names = ["READ_CSV"] -3840 is_var_len_args = True -3841 arg_types = {"this": True, "expressions": False} -3842 -3843 -3844class Reduce(Func): -3845 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} -3846 -3847 -3848class RegexpExtract(Func): -3849 arg_types = { -3850 "this": True, -3851 "expression": True, -3852 "position": False, -3853 "occurrence": False, -3854 "group": False, -3855 } -3856 -3857 -3858class RegexpLike(Func): -3859 arg_types = {"this": True, "expression": True, "flag": False} -3860 -3861 -3862class RegexpILike(Func): -3863 arg_types = {"this": True, "expression": True, "flag": False} -3864 -3865 -3866# https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.split.html -3867# limit is the number of times a pattern is applied -3868class RegexpSplit(Func): -3869 arg_types = {"this": True, "expression": True, "limit": False} -3870 -3871 -3872class Repeat(Func): -3873 arg_types = {"this": True, "times": True} -3874 -3875 -3876class Round(Func): -3877 arg_types = {"this": True, "decimals": False} -3878 -3879 -3880class RowNumber(Func): -3881 arg_types: t.Dict[str, t.Any] = {} -3882 -3883 -3884class SafeDivide(Func): -3885 arg_types = {"this": True, "expression": True} -3886 -3887 -3888class SetAgg(AggFunc): -3889 pass -3890 -3891 -3892class SHA(Func): -3893 _sql_names = ["SHA", "SHA1"] -3894 -3895 -3896class SHA2(Func): -3897 _sql_names = ["SHA2"] -3898 arg_types = {"this": True, "length": False} -3899 +3838class JSONExtractScalar(JSONExtract): +3839 _sql_names = ["JSON_EXTRACT_SCALAR"] +3840 +3841 +3842class JSONBExtract(JSONExtract): +3843 _sql_names = ["JSONB_EXTRACT"] +3844 +3845 +3846class JSONBExtractScalar(JSONExtract): +3847 _sql_names = ["JSONB_EXTRACT_SCALAR"] +3848 +3849 +3850class JSONFormat(Func): +3851 arg_types = {"this": False, "options": False} +3852 _sql_names = ["JSON_FORMAT"] +3853 +3854 +3855class Least(Func): +3856 arg_types = {"expressions": False} +3857 is_var_len_args = True +3858 +3859 +3860class Length(Func): +3861 pass +3862 +3863 +3864class Levenshtein(Func): +3865 arg_types = { +3866 "this": True, +3867 "expression": False, +3868 "ins_cost": False, +3869 "del_cost": False, +3870 "sub_cost": False, +3871 } +3872 +3873 +3874class Ln(Func): +3875 pass +3876 +3877 +3878class Log(Func): +3879 arg_types = {"this": True, "expression": False} +3880 +3881 +3882class Log2(Func): +3883 pass +3884 +3885 +3886class Log10(Func): +3887 pass +3888 +3889 +3890class LogicalOr(AggFunc): +3891 _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"] +3892 +3893 +3894class LogicalAnd(AggFunc): +3895 _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"] +3896 +3897 +3898class Lower(Func): +3899 _sql_names = ["LOWER", "LCASE"] 3900 -3901class SortArray(Func): -3902 arg_types = {"this": True, "asc": False} -3903 +3901 +3902class Map(Func): +3903 arg_types = {"keys": False, "values": False} 3904 -3905class Split(Func): -3906 arg_types = {"this": True, "expression": True, "limit": False} -3907 +3905 +3906class StarMap(Func): +3907 pass 3908 -3909# Start may be omitted in the case of postgres -3910# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 -3911class Substring(Func): -3912 arg_types = {"this": True, "start": False, "length": False} +3909 +3910class VarMap(Func): +3911 arg_types = {"keys": True, "values": True} +3912 is_var_len_args = True 3913 3914 -3915class StrPosition(Func): -3916 arg_types = { -3917 "this": True, -3918 "substr": True, -3919 "position": False, -3920 "instance": False, -3921 } -3922 +3915# https://dev.mysql.com/doc/refman/8.0/en/fulltext-search.html +3916class MatchAgainst(Func): +3917 arg_types = {"this": True, "expressions": True, "modifier": False} +3918 +3919 +3920class Max(AggFunc): +3921 arg_types = {"this": True, "expressions": False} +3922 is_var_len_args = True 3923 -3924class StrToDate(Func): -3925 arg_types = {"this": True, "format": True} -3926 +3924 +3925class MD5(Func): +3926 _sql_names = ["MD5"] 3927 -3928class StrToTime(Func): -3929 arg_types = {"this": True, "format": True} -3930 -3931 -3932# Spark allows unix_timestamp() -3933# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html -3934class StrToUnix(Func): -3935 arg_types = {"this": False, "format": False} +3928 +3929class Min(AggFunc): +3930 arg_types = {"this": True, "expressions": False} +3931 is_var_len_args = True +3932 +3933 +3934class Month(Func): +3935 pass 3936 3937 -3938class NumberToStr(Func): -3939 arg_types = {"this": True, "format": True} +3938class Nvl2(Func): +3939 arg_types = {"this": True, "true": True, "false": False} 3940 3941 -3942class Struct(Func): -3943 arg_types = {"expressions": True} -3944 is_var_len_args = True +3942class Posexplode(Func): +3943 pass +3944 3945 -3946 -3947class StructExtract(Func): -3948 arg_types = {"this": True, "expression": True} +3946class Pow(Binary, Func): +3947 _sql_names = ["POWER", "POW"] +3948 3949 -3950 -3951class Sum(AggFunc): -3952 pass +3950class PercentileCont(AggFunc): +3951 arg_types = {"this": True, "expression": False} +3952 3953 -3954 -3955class Sqrt(Func): -3956 pass +3954class PercentileDisc(AggFunc): +3955 arg_types = {"this": True, "expression": False} +3956 3957 -3958 -3959class Stddev(AggFunc): -3960 pass +3958class Quantile(AggFunc): +3959 arg_types = {"this": True, "quantile": True} +3960 3961 -3962 -3963class StddevPop(AggFunc): -3964 pass -3965 -3966 -3967class StddevSamp(AggFunc): -3968 pass -3969 -3970 -3971class TimeToStr(Func): -3972 arg_types = {"this": True, "format": True} -3973 -3974 -3975class TimeToTimeStr(Func): -3976 pass -3977 -3978 -3979class TimeToUnix(Func): -3980 pass -3981 -3982 -3983class TimeStrToDate(Func): -3984 pass +3962# Clickhouse-specific: +3963# https://clickhouse.com/docs/en/sql-reference/aggregate-functions/reference/quantiles/#quantiles +3964class Quantiles(AggFunc): +3965 arg_types = {"parameters": True, "expressions": True} +3966 is_var_len_args = True +3967 +3968 +3969class QuantileIf(AggFunc): +3970 arg_types = {"parameters": True, "expressions": True} +3971 +3972 +3973class ApproxQuantile(Quantile): +3974 arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False} +3975 +3976 +3977class RangeN(Func): +3978 arg_types = {"this": True, "expressions": True, "each": False} +3979 +3980 +3981class ReadCSV(Func): +3982 _sql_names = ["READ_CSV"] +3983 is_var_len_args = True +3984 arg_types = {"this": True, "expressions": False} 3985 3986 -3987class TimeStrToTime(Func): -3988 pass +3987class Reduce(Func): +3988 arg_types = {"this": True, "initial": True, "merge": True, "finish": False} 3989 3990 -3991class TimeStrToUnix(Func): -3992 pass -3993 -3994 -3995class Trim(Func): -3996 arg_types = { -3997 "this": True, -3998 "expression": False, -3999 "position": False, -4000 "collation": False, -4001 } -4002 +3991class RegexpExtract(Func): +3992 arg_types = { +3993 "this": True, +3994 "expression": True, +3995 "position": False, +3996 "occurrence": False, +3997 "group": False, +3998 } +3999 +4000 +4001class RegexpLike(Func): +4002 arg_types = {"this": True, "expression": True, "flag": False} 4003 -4004class TsOrDsAdd(Func, TimeUnit): -4005 arg_types = {"this": True, "expression": True, "unit": False} -4006 +4004 +4005class RegexpILike(Func): +4006 arg_types = {"this": True, "expression": True, "flag": False} 4007 -4008class TsOrDsToDateStr(Func): -4009 pass -4010 -4011 -4012class TsOrDsToDate(Func): -4013 arg_types = {"this": True, "format": False} +4008 +4009# https://spark.apache.org/docs/latest/api/python/reference/pyspark.sql/api/pyspark.sql.functions.split.html +4010# limit is the number of times a pattern is applied +4011class RegexpSplit(Func): +4012 arg_types = {"this": True, "expression": True, "limit": False} +4013 4014 -4015 -4016class TsOrDiToDi(Func): -4017 pass +4015class Repeat(Func): +4016 arg_types = {"this": True, "times": True} +4017 4018 -4019 -4020class Unhex(Func): -4021 pass +4019class Round(Func): +4020 arg_types = {"this": True, "decimals": False} +4021 4022 -4023 -4024class UnixToStr(Func): -4025 arg_types = {"this": True, "format": False} +4023class RowNumber(Func): +4024 arg_types: t.Dict[str, t.Any] = {} +4025 4026 -4027 -4028# https://prestodb.io/docs/current/functions/datetime.html -4029# presto has weird zone/hours/minutes -4030class UnixToTime(Func): -4031 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} -4032 -4033 SECONDS = Literal.string("seconds") -4034 MILLIS = Literal.string("millis") -4035 MICROS = Literal.string("micros") -4036 +4027class SafeDivide(Func): +4028 arg_types = {"this": True, "expression": True} +4029 +4030 +4031class SetAgg(AggFunc): +4032 pass +4033 +4034 +4035class SHA(Func): +4036 _sql_names = ["SHA", "SHA1"] 4037 -4038class UnixToTimeStr(Func): -4039 pass -4040 -4041 -4042class Upper(Func): -4043 _sql_names = ["UPPER", "UCASE"] -4044 -4045 -4046class Variance(AggFunc): -4047 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] -4048 -4049 -4050class VariancePop(AggFunc): -4051 _sql_names = ["VARIANCE_POP", "VAR_POP"] -4052 -4053 -4054class Week(Func): -4055 arg_types = {"this": True, "mode": False} +4038 +4039class SHA2(Func): +4040 _sql_names = ["SHA2"] +4041 arg_types = {"this": True, "length": False} +4042 +4043 +4044class SortArray(Func): +4045 arg_types = {"this": True, "asc": False} +4046 +4047 +4048class Split(Func): +4049 arg_types = {"this": True, "expression": True, "limit": False} +4050 +4051 +4052# Start may be omitted in the case of postgres +4053# https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +4054class Substring(Func): +4055 arg_types = {"this": True, "start": False, "length": False} 4056 4057 -4058class XMLTable(Func): -4059 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} -4060 -4061 -4062class Year(Func): -4063 pass -4064 +4058class StrPosition(Func): +4059 arg_types = { +4060 "this": True, +4061 "substr": True, +4062 "position": False, +4063 "instance": False, +4064 } 4065 -4066class Use(Expression): -4067 arg_types = {"this": True, "kind": False} -4068 +4066 +4067class StrToDate(Func): +4068 arg_types = {"this": True, "format": True} 4069 -4070class Merge(Expression): -4071 arg_types = {"this": True, "using": True, "on": True, "expressions": True} -4072 +4070 +4071class StrToTime(Func): +4072 arg_types = {"this": True, "format": True} 4073 -4074class When(Func): -4075 arg_types = {"matched": True, "source": False, "condition": False, "then": True} -4076 -4077 -4078def _norm_arg(arg): -4079 return arg.lower() if type(arg) is str else arg +4074 +4075# Spark allows unix_timestamp() +4076# https://spark.apache.org/docs/3.1.3/api/python/reference/api/pyspark.sql.functions.unix_timestamp.html +4077class StrToUnix(Func): +4078 arg_types = {"this": False, "format": False} +4079 4080 -4081 -4082ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +4081class NumberToStr(Func): +4082 arg_types = {"this": True, "format": True} 4083 4084 -4085# Helpers -4086@t.overload -4087def maybe_parse( -4088 sql_or_expression: ExpOrStr, -4089 *, -4090 into: t.Type[E], -4091 dialect: DialectType = None, -4092 prefix: t.Optional[str] = None, -4093 copy: bool = False, -4094 **opts, -4095) -> E: -4096 ... +4085class Struct(Func): +4086 arg_types = {"expressions": True} +4087 is_var_len_args = True +4088 +4089 +4090class StructExtract(Func): +4091 arg_types = {"this": True, "expression": True} +4092 +4093 +4094class Sum(AggFunc): +4095 pass +4096 4097 -4098 -4099@t.overload -4100def maybe_parse( -4101 sql_or_expression: str | E, -4102 *, -4103 into: t.Optional[IntoType] = None, -4104 dialect: DialectType = None, -4105 prefix: t.Optional[str] = None, -4106 copy: bool = False, -4107 **opts, -4108) -> E: -4109 ... -4110 -4111 -4112def maybe_parse( -4113 sql_or_expression: ExpOrStr, -4114 *, -4115 into: t.Optional[IntoType] = None, -4116 dialect: DialectType = None, -4117 prefix: t.Optional[str] = None, -4118 copy: bool = False, -4119 **opts, -4120) -> Expression: -4121 """Gracefully handle a possible string or expression. -4122 -4123 Example: -4124 >>> maybe_parse("1") -4125 (LITERAL this: 1, is_string: False) -4126 >>> maybe_parse(to_identifier("x")) -4127 (IDENTIFIER this: x, quoted: False) +4098class Sqrt(Func): +4099 pass +4100 +4101 +4102class Stddev(AggFunc): +4103 pass +4104 +4105 +4106class StddevPop(AggFunc): +4107 pass +4108 +4109 +4110class StddevSamp(AggFunc): +4111 pass +4112 +4113 +4114class TimeToStr(Func): +4115 arg_types = {"this": True, "format": True} +4116 +4117 +4118class TimeToTimeStr(Func): +4119 pass +4120 +4121 +4122class TimeToUnix(Func): +4123 pass +4124 +4125 +4126class TimeStrToDate(Func): +4127 pass 4128 -4129 Args: -4130 sql_or_expression: the SQL code string or an expression -4131 into: the SQLGlot Expression to parse into -4132 dialect: the dialect used to parse the input expressions (in the case that an -4133 input expression is a SQL string). -4134 prefix: a string to prefix the sql with before it gets parsed -4135 (automatically includes a space) -4136 copy: whether or not to copy the expression. -4137 **opts: other options to use to parse the input expressions (again, in the case -4138 that an input expression is a SQL string). -4139 -4140 Returns: -4141 Expression: the parsed or given expression. -4142 """ -4143 if isinstance(sql_or_expression, Expression): -4144 if copy: -4145 return sql_or_expression.copy() -4146 return sql_or_expression -4147 -4148 import sqlglot +4129 +4130class TimeStrToTime(Func): +4131 pass +4132 +4133 +4134class TimeStrToUnix(Func): +4135 pass +4136 +4137 +4138class Trim(Func): +4139 arg_types = { +4140 "this": True, +4141 "expression": False, +4142 "position": False, +4143 "collation": False, +4144 } +4145 +4146 +4147class TsOrDsAdd(Func, TimeUnit): +4148 arg_types = {"this": True, "expression": True, "unit": False} 4149 -4150 sql = str(sql_or_expression) -4151 if prefix: -4152 sql = f"{prefix} {sql}" -4153 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +4150 +4151class TsOrDsToDateStr(Func): +4152 pass +4153 4154 -4155 -4156def _maybe_copy(instance, copy=True): -4157 return instance.copy() if copy else instance +4155class TsOrDsToDate(Func): +4156 arg_types = {"this": True, "format": False} +4157 4158 -4159 -4160def _is_wrong_expression(expression, into): -4161 return isinstance(expression, Expression) and not isinstance(expression, into) +4159class TsOrDiToDi(Func): +4160 pass +4161 4162 -4163 -4164def _apply_builder( -4165 expression, -4166 instance, -4167 arg, -4168 copy=True, -4169 prefix=None, -4170 into=None, -4171 dialect=None, -4172 **opts, -4173): -4174 if _is_wrong_expression(expression, into): -4175 expression = into(this=expression) -4176 instance = _maybe_copy(instance, copy) -4177 expression = maybe_parse( -4178 sql_or_expression=expression, -4179 prefix=prefix, -4180 into=into, -4181 dialect=dialect, -4182 **opts, -4183 ) -4184 instance.set(arg, expression) -4185 return instance -4186 +4163class Unhex(Func): +4164 pass +4165 +4166 +4167class UnixToStr(Func): +4168 arg_types = {"this": True, "format": False} +4169 +4170 +4171# https://prestodb.io/docs/current/functions/datetime.html +4172# presto has weird zone/hours/minutes +4173class UnixToTime(Func): +4174 arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False} +4175 +4176 SECONDS = Literal.string("seconds") +4177 MILLIS = Literal.string("millis") +4178 MICROS = Literal.string("micros") +4179 +4180 +4181class UnixToTimeStr(Func): +4182 pass +4183 +4184 +4185class Upper(Func): +4186 _sql_names = ["UPPER", "UCASE"] 4187 -4188def _apply_child_list_builder( -4189 *expressions, -4190 instance, -4191 arg, -4192 append=True, -4193 copy=True, -4194 prefix=None, -4195 into=None, -4196 dialect=None, -4197 properties=None, -4198 **opts, -4199): -4200 instance = _maybe_copy(instance, copy) -4201 parsed = [] -4202 for expression in expressions: -4203 if _is_wrong_expression(expression, into): -4204 expression = into(expressions=[expression]) -4205 expression = maybe_parse( -4206 expression, -4207 into=into, -4208 dialect=dialect, -4209 prefix=prefix, -4210 **opts, -4211 ) -4212 parsed.extend(expression.expressions) -4213 -4214 existing = instance.args.get(arg) -4215 if append and existing: -4216 parsed = existing.expressions + parsed -4217 -4218 child = into(expressions=parsed) -4219 for k, v in (properties or {}).items(): -4220 child.set(k, v) -4221 instance.set(arg, child) -4222 return instance -4223 -4224 -4225def _apply_list_builder( -4226 *expressions, -4227 instance, -4228 arg, -4229 append=True, -4230 copy=True, -4231 prefix=None, -4232 into=None, -4233 dialect=None, -4234 **opts, -4235): -4236 inst = _maybe_copy(instance, copy) -4237 -4238 expressions = [ -4239 maybe_parse( -4240 sql_or_expression=expression, -4241 into=into, -4242 prefix=prefix, -4243 dialect=dialect, -4244 **opts, -4245 ) -4246 for expression in expressions -4247 ] -4248 -4249 existing_expressions = inst.args.get(arg) -4250 if append and existing_expressions: -4251 expressions = existing_expressions + expressions -4252 -4253 inst.set(arg, expressions) -4254 return inst -4255 -4256 -4257def _apply_conjunction_builder( -4258 *expressions, -4259 instance, -4260 arg, -4261 into=None, -4262 append=True, -4263 copy=True, -4264 dialect=None, -4265 **opts, -4266): -4267 expressions = [exp for exp in expressions if exp is not None and exp != ""] -4268 if not expressions: -4269 return instance -4270 -4271 inst = _maybe_copy(instance, copy) -4272 -4273 existing = inst.args.get(arg) -4274 if append and existing is not None: -4275 expressions = [existing.this if into else existing] + list(expressions) -4276 -4277 node = and_(*expressions, dialect=dialect, **opts) -4278 -4279 inst.set(arg, into(this=node) if into else node) -4280 return inst -4281 -4282 -4283def _combine(expressions, operator, dialect=None, **opts): -4284 expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] -4285 this = expressions[0] -4286 if expressions[1:]: -4287 this = _wrap_operator(this) -4288 for expression in expressions[1:]: -4289 this = operator(this=this, expression=_wrap_operator(expression)) -4290 return this -4291 -4292 -4293def _wrap_operator(expression): -4294 if isinstance(expression, (And, Or, Not)): -4295 expression = Paren(this=expression) -4296 return expression -4297 +4188 +4189class Variance(AggFunc): +4190 _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"] +4191 +4192 +4193class VariancePop(AggFunc): +4194 _sql_names = ["VARIANCE_POP", "VAR_POP"] +4195 +4196 +4197class Week(Func): +4198 arg_types = {"this": True, "mode": False} +4199 +4200 +4201class XMLTable(Func): +4202 arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False} +4203 +4204 +4205class Year(Func): +4206 pass +4207 +4208 +4209class Use(Expression): +4210 arg_types = {"this": True, "kind": False} +4211 +4212 +4213class Merge(Expression): +4214 arg_types = {"this": True, "using": True, "on": True, "expressions": True} +4215 +4216 +4217class When(Func): +4218 arg_types = {"matched": True, "source": False, "condition": False, "then": True} +4219 +4220 +4221# https://docs.oracle.com/javadb/10.8.3.0/ref/rrefsqljnextvaluefor.html +4222# https://learn.microsoft.com/en-us/sql/t-sql/functions/next-value-for-transact-sql?view=sql-server-ver16 +4223class NextValueFor(Func): +4224 arg_types = {"this": True, "order": False} +4225 +4226 +4227def _norm_arg(arg): +4228 return arg.lower() if type(arg) is str else arg +4229 +4230 +4231ALL_FUNCTIONS = subclasses(__name__, Func, (AggFunc, Anonymous, Func)) +4232 +4233 +4234# Helpers +4235@t.overload +4236def maybe_parse( +4237 sql_or_expression: ExpOrStr, +4238 *, +4239 into: t.Type[E], +4240 dialect: DialectType = None, +4241 prefix: t.Optional[str] = None, +4242 copy: bool = False, +4243 **opts, +4244) -> E: +4245 ... +4246 +4247 +4248@t.overload +4249def maybe_parse( +4250 sql_or_expression: str | E, +4251 *, +4252 into: t.Optional[IntoType] = None, +4253 dialect: DialectType = None, +4254 prefix: t.Optional[str] = None, +4255 copy: bool = False, +4256 **opts, +4257) -> E: +4258 ... +4259 +4260 +4261def maybe_parse( +4262 sql_or_expression: ExpOrStr, +4263 *, +4264 into: t.Optional[IntoType] = None, +4265 dialect: DialectType = None, +4266 prefix: t.Optional[str] = None, +4267 copy: bool = False, +4268 **opts, +4269) -> Expression: +4270 """Gracefully handle a possible string or expression. +4271 +4272 Example: +4273 >>> maybe_parse("1") +4274 (LITERAL this: 1, is_string: False) +4275 >>> maybe_parse(to_identifier("x")) +4276 (IDENTIFIER this: x, quoted: False) +4277 +4278 Args: +4279 sql_or_expression: the SQL code string or an expression +4280 into: the SQLGlot Expression to parse into +4281 dialect: the dialect used to parse the input expressions (in the case that an +4282 input expression is a SQL string). +4283 prefix: a string to prefix the sql with before it gets parsed +4284 (automatically includes a space) +4285 copy: whether or not to copy the expression. +4286 **opts: other options to use to parse the input expressions (again, in the case +4287 that an input expression is a SQL string). +4288 +4289 Returns: +4290 Expression: the parsed or given expression. +4291 """ +4292 if isinstance(sql_or_expression, Expression): +4293 if copy: +4294 return sql_or_expression.copy() +4295 return sql_or_expression +4296 +4297 import sqlglot 4298 -4299def union(left, right, distinct=True, dialect=None, **opts): -4300 """ -4301 Initializes a syntax tree from one UNION expression. -4302 -4303 Example: -4304 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() -4305 'SELECT * FROM foo UNION SELECT * FROM bla' -4306 -4307 Args: -4308 left (str | Expression): the SQL code string corresponding to the left-hand side. -4309 If an `Expression` instance is passed, it will be used as-is. -4310 right (str | Expression): the SQL code string corresponding to the right-hand side. -4311 If an `Expression` instance is passed, it will be used as-is. -4312 distinct (bool): set the DISTINCT flag if and only if this is true. -4313 dialect (str): the dialect used to parse the input expression. -4314 opts (kwargs): other options to use to parse the input expressions. -4315 Returns: -4316 Union: the syntax tree for the UNION expression. -4317 """ -4318 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4319 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4320 -4321 return Union(this=left, expression=right, distinct=distinct) -4322 -4323 -4324def intersect(left, right, distinct=True, dialect=None, **opts): -4325 """ -4326 Initializes a syntax tree from one INTERSECT expression. -4327 -4328 Example: -4329 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() -4330 'SELECT * FROM foo INTERSECT SELECT * FROM bla' -4331 -4332 Args: -4333 left (str | Expression): the SQL code string corresponding to the left-hand side. -4334 If an `Expression` instance is passed, it will be used as-is. -4335 right (str | Expression): the SQL code string corresponding to the right-hand side. -4336 If an `Expression` instance is passed, it will be used as-is. -4337 distinct (bool): set the DISTINCT flag if and only if this is true. -4338 dialect (str): the dialect used to parse the input expression. -4339 opts (kwargs): other options to use to parse the input expressions. -4340 Returns: -4341 Intersect: the syntax tree for the INTERSECT expression. -4342 """ -4343 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4344 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4345 -4346 return Intersect(this=left, expression=right, distinct=distinct) -4347 -4348 -4349def except_(left, right, distinct=True, dialect=None, **opts): -4350 """ -4351 Initializes a syntax tree from one EXCEPT expression. -4352 -4353 Example: -4354 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() -4355 'SELECT * FROM foo EXCEPT SELECT * FROM bla' -4356 -4357 Args: -4358 left (str | Expression): the SQL code string corresponding to the left-hand side. -4359 If an `Expression` instance is passed, it will be used as-is. -4360 right (str | Expression): the SQL code string corresponding to the right-hand side. -4361 If an `Expression` instance is passed, it will be used as-is. -4362 distinct (bool): set the DISTINCT flag if and only if this is true. -4363 dialect (str): the dialect used to parse the input expression. -4364 opts (kwargs): other options to use to parse the input expressions. -4365 Returns: -4366 Except: the syntax tree for the EXCEPT statement. -4367 """ -4368 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) -4369 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) -4370 -4371 return Except(this=left, expression=right, distinct=distinct) +4299 sql = str(sql_or_expression) +4300 if prefix: +4301 sql = f"{prefix} {sql}" +4302 return sqlglot.parse_one(sql, read=dialect, into=into, **opts) +4303 +4304 +4305def _maybe_copy(instance, copy=True): +4306 return instance.copy() if copy else instance +4307 +4308 +4309def _is_wrong_expression(expression, into): +4310 return isinstance(expression, Expression) and not isinstance(expression, into) +4311 +4312 +4313def _apply_builder( +4314 expression, +4315 instance, +4316 arg, +4317 copy=True, +4318 prefix=None, +4319 into=None, +4320 dialect=None, +4321 **opts, +4322): +4323 if _is_wrong_expression(expression, into): +4324 expression = into(this=expression) +4325 instance = _maybe_copy(instance, copy) +4326 expression = maybe_parse( +4327 sql_or_expression=expression, +4328 prefix=prefix, +4329 into=into, +4330 dialect=dialect, +4331 **opts, +4332 ) +4333 instance.set(arg, expression) +4334 return instance +4335 +4336 +4337def _apply_child_list_builder( +4338 *expressions, +4339 instance, +4340 arg, +4341 append=True, +4342 copy=True, +4343 prefix=None, +4344 into=None, +4345 dialect=None, +4346 properties=None, +4347 **opts, +4348): +4349 instance = _maybe_copy(instance, copy) +4350 parsed = [] +4351 for expression in expressions: +4352 if _is_wrong_expression(expression, into): +4353 expression = into(expressions=[expression]) +4354 expression = maybe_parse( +4355 expression, +4356 into=into, +4357 dialect=dialect, +4358 prefix=prefix, +4359 **opts, +4360 ) +4361 parsed.extend(expression.expressions) +4362 +4363 existing = instance.args.get(arg) +4364 if append and existing: +4365 parsed = existing.expressions + parsed +4366 +4367 child = into(expressions=parsed) +4368 for k, v in (properties or {}).items(): +4369 child.set(k, v) +4370 instance.set(arg, child) +4371 return instance 4372 4373 -4374def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select: -4375 """ -4376 Initializes a syntax tree from one or multiple SELECT expressions. -4377 -4378 Example: -4379 >>> select("col1", "col2").from_("tbl").sql() -4380 'SELECT col1, col2 FROM tbl' -4381 -4382 Args: -4383 *expressions: the SQL code string to parse as the expressions of a -4384 SELECT statement. If an Expression instance is passed, this is used as-is. -4385 dialect: the dialect used to parse the input expressions (in the case that an -4386 input expression is a SQL string). -4387 **opts: other options to use to parse the input expressions (again, in the case -4388 that an input expression is a SQL string). -4389 -4390 Returns: -4391 Select: the syntax tree for the SELECT statement. -4392 """ -4393 return Select().select(*expressions, dialect=dialect, **opts) -4394 -4395 -4396def from_(*expressions, dialect=None, **opts) -> Select: -4397 """ -4398 Initializes a syntax tree from a FROM expression. -4399 -4400 Example: -4401 >>> from_("tbl").select("col1", "col2").sql() -4402 'SELECT col1, col2 FROM tbl' -4403 -4404 Args: -4405 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a -4406 SELECT statement. If an Expression instance is passed, this is used as-is. -4407 dialect (str): the dialect used to parse the input expression (in the case that the -4408 input expression is a SQL string). -4409 **opts: other options to use to parse the input expressions (again, in the case -4410 that the input expression is a SQL string). -4411 -4412 Returns: -4413 Select: the syntax tree for the SELECT statement. -4414 """ -4415 return Select().from_(*expressions, dialect=dialect, **opts) -4416 -4417 -4418def update( -4419 table: str | Table, -4420 properties: dict, -4421 where: t.Optional[ExpOrStr] = None, -4422 from_: t.Optional[ExpOrStr] = None, -4423 dialect: DialectType = None, -4424 **opts, -4425) -> Update: -4426 """ -4427 Creates an update statement. -4428 -4429 Example: -4430 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() -4431 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" -4432 -4433 Args: -4434 *properties: dictionary of properties to set which are -4435 auto converted to sql objects eg None -> NULL -4436 where: sql conditional parsed into a WHERE statement -4437 from_: sql statement parsed into a FROM statement -4438 dialect: the dialect used to parse the input expressions. -4439 **opts: other options to use to parse the input expressions. -4440 -4441 Returns: -4442 Update: the syntax tree for the UPDATE statement. -4443 """ -4444 update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect)) -4445 update_expr.set( -4446 "expressions", -4447 [ -4448 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) -4449 for k, v in properties.items() -4450 ], -4451 ) -4452 if from_: -4453 update_expr.set( -4454 "from", -4455 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), -4456 ) -4457 if isinstance(where, Condition): -4458 where = Where(this=where) -4459 if where: -4460 update_expr.set( -4461 "where", -4462 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), -4463 ) -4464 return update_expr -4465 -4466 -4467def delete( -4468 table: ExpOrStr, -4469 where: t.Optional[ExpOrStr] = None, -4470 returning: t.Optional[ExpOrStr] = None, -4471 dialect: DialectType = None, -4472 **opts, -4473) -> Delete: -4474 """ -4475 Builds a delete statement. -4476 -4477 Example: -4478 >>> delete("my_table", where="id > 1").sql() -4479 'DELETE FROM my_table WHERE id > 1' -4480 -4481 Args: -4482 where: sql conditional parsed into a WHERE statement -4483 returning: sql conditional parsed into a RETURNING statement -4484 dialect: the dialect used to parse the input expressions. -4485 **opts: other options to use to parse the input expressions. -4486 -4487 Returns: -4488 Delete: the syntax tree for the DELETE statement. -4489 """ -4490 delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts) -4491 if where: -4492 delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts) -4493 if returning: -4494 delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts) -4495 return delete_expr +4374def _apply_list_builder( +4375 *expressions, +4376 instance, +4377 arg, +4378 append=True, +4379 copy=True, +4380 prefix=None, +4381 into=None, +4382 dialect=None, +4383 **opts, +4384): +4385 inst = _maybe_copy(instance, copy) +4386 +4387 expressions = [ +4388 maybe_parse( +4389 sql_or_expression=expression, +4390 into=into, +4391 prefix=prefix, +4392 dialect=dialect, +4393 **opts, +4394 ) +4395 for expression in expressions +4396 ] +4397 +4398 existing_expressions = inst.args.get(arg) +4399 if append and existing_expressions: +4400 expressions = existing_expressions + expressions +4401 +4402 inst.set(arg, expressions) +4403 return inst +4404 +4405 +4406def _apply_conjunction_builder( +4407 *expressions, +4408 instance, +4409 arg, +4410 into=None, +4411 append=True, +4412 copy=True, +4413 dialect=None, +4414 **opts, +4415): +4416 expressions = [exp for exp in expressions if exp is not None and exp != ""] +4417 if not expressions: +4418 return instance +4419 +4420 inst = _maybe_copy(instance, copy) +4421 +4422 existing = inst.args.get(arg) +4423 if append and existing is not None: +4424 expressions = [existing.this if into else existing] + list(expressions) +4425 +4426 node = and_(*expressions, dialect=dialect, copy=copy, **opts) +4427 +4428 inst.set(arg, into(this=node) if into else node) +4429 return inst +4430 +4431 +4432def _combine(expressions, operator, dialect=None, copy=True, **opts): +4433 expressions = [ +4434 condition(expression, dialect=dialect, copy=copy, **opts) for expression in expressions +4435 ] +4436 this = expressions[0] +4437 if expressions[1:]: +4438 this = _wrap(this, Connector) +4439 for expression in expressions[1:]: +4440 this = operator(this=this, expression=_wrap(expression, Connector)) +4441 return this +4442 +4443 +4444def _wrap(expression: E, kind: t.Type[Expression]) -> E | Paren: +4445 if isinstance(expression, kind): +4446 return Paren(this=expression) +4447 return expression +4448 +4449 +4450def union(left, right, distinct=True, dialect=None, **opts): +4451 """ +4452 Initializes a syntax tree from one UNION expression. +4453 +4454 Example: +4455 >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql() +4456 'SELECT * FROM foo UNION SELECT * FROM bla' +4457 +4458 Args: +4459 left (str | Expression): the SQL code string corresponding to the left-hand side. +4460 If an `Expression` instance is passed, it will be used as-is. +4461 right (str | Expression): the SQL code string corresponding to the right-hand side. +4462 If an `Expression` instance is passed, it will be used as-is. +4463 distinct (bool): set the DISTINCT flag if and only if this is true. +4464 dialect (str): the dialect used to parse the input expression. +4465 opts (kwargs): other options to use to parse the input expressions. +4466 Returns: +4467 Union: the syntax tree for the UNION expression. +4468 """ +4469 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4470 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4471 +4472 return Union(this=left, expression=right, distinct=distinct) +4473 +4474 +4475def intersect(left, right, distinct=True, dialect=None, **opts): +4476 """ +4477 Initializes a syntax tree from one INTERSECT expression. +4478 +4479 Example: +4480 >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql() +4481 'SELECT * FROM foo INTERSECT SELECT * FROM bla' +4482 +4483 Args: +4484 left (str | Expression): the SQL code string corresponding to the left-hand side. +4485 If an `Expression` instance is passed, it will be used as-is. +4486 right (str | Expression): the SQL code string corresponding to the right-hand side. +4487 If an `Expression` instance is passed, it will be used as-is. +4488 distinct (bool): set the DISTINCT flag if and only if this is true. +4489 dialect (str): the dialect used to parse the input expression. +4490 opts (kwargs): other options to use to parse the input expressions. +4491 Returns: +4492 Intersect: the syntax tree for the INTERSECT expression. +4493 """ +4494 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4495 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) 4496 -4497 -4498def condition(expression, dialect=None, **opts) -> Condition: -4499 """ -4500 Initialize a logical condition expression. -4501 -4502 Example: -4503 >>> condition("x=1").sql() -4504 'x = 1' -4505 -4506 This is helpful for composing larger logical syntax trees: -4507 >>> where = condition("x=1") -4508 >>> where = where.and_("y=1") -4509 >>> Select().from_("tbl").select("*").where(where).sql() -4510 'SELECT * FROM tbl WHERE x = 1 AND y = 1' -4511 -4512 Args: -4513 *expression (str | Expression): the SQL code string to parse. -4514 If an Expression instance is passed, this is used as-is. -4515 dialect (str): the dialect used to parse the input expression (in the case that the -4516 input expression is a SQL string). -4517 **opts: other options to use to parse the input expressions (again, in the case -4518 that the input expression is a SQL string). -4519 -4520 Returns: -4521 Condition: the expression -4522 """ -4523 return maybe_parse( # type: ignore -4524 expression, -4525 into=Condition, -4526 dialect=dialect, -4527 **opts, -4528 ) -4529 -4530 -4531def and_(*expressions, dialect=None, **opts) -> And: -4532 """ -4533 Combine multiple conditions with an AND logical operator. -4534 -4535 Example: -4536 >>> and_("x=1", and_("y=1", "z=1")).sql() -4537 'x = 1 AND (y = 1 AND z = 1)' -4538 -4539 Args: -4540 *expressions (str | Expression): the SQL code strings to parse. -4541 If an Expression instance is passed, this is used as-is. -4542 dialect (str): the dialect used to parse the input expression. -4543 **opts: other options to use to parse the input expressions. -4544 -4545 Returns: -4546 And: the new condition -4547 """ -4548 return _combine(expressions, And, dialect, **opts) -4549 +4497 return Intersect(this=left, expression=right, distinct=distinct) +4498 +4499 +4500def except_(left, right, distinct=True, dialect=None, **opts): +4501 """ +4502 Initializes a syntax tree from one EXCEPT expression. +4503 +4504 Example: +4505 >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql() +4506 'SELECT * FROM foo EXCEPT SELECT * FROM bla' +4507 +4508 Args: +4509 left (str | Expression): the SQL code string corresponding to the left-hand side. +4510 If an `Expression` instance is passed, it will be used as-is. +4511 right (str | Expression): the SQL code string corresponding to the right-hand side. +4512 If an `Expression` instance is passed, it will be used as-is. +4513 distinct (bool): set the DISTINCT flag if and only if this is true. +4514 dialect (str): the dialect used to parse the input expression. +4515 opts (kwargs): other options to use to parse the input expressions. +4516 Returns: +4517 Except: the syntax tree for the EXCEPT statement. +4518 """ +4519 left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts) +4520 right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts) +4521 +4522 return Except(this=left, expression=right, distinct=distinct) +4523 +4524 +4525def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select: +4526 """ +4527 Initializes a syntax tree from one or multiple SELECT expressions. +4528 +4529 Example: +4530 >>> select("col1", "col2").from_("tbl").sql() +4531 'SELECT col1, col2 FROM tbl' +4532 +4533 Args: +4534 *expressions: the SQL code string to parse as the expressions of a +4535 SELECT statement. If an Expression instance is passed, this is used as-is. +4536 dialect: the dialect used to parse the input expressions (in the case that an +4537 input expression is a SQL string). +4538 **opts: other options to use to parse the input expressions (again, in the case +4539 that an input expression is a SQL string). +4540 +4541 Returns: +4542 Select: the syntax tree for the SELECT statement. +4543 """ +4544 return Select().select(*expressions, dialect=dialect, **opts) +4545 +4546 +4547def from_(*expressions, dialect=None, **opts) -> Select: +4548 """ +4549 Initializes a syntax tree from a FROM expression. 4550 -4551def or_(*expressions, dialect=None, **opts) -> Or: -4552 """ -4553 Combine multiple conditions with an OR logical operator. +4551 Example: +4552 >>> from_("tbl").select("col1", "col2").sql() +4553 'SELECT col1, col2 FROM tbl' 4554 -4555 Example: -4556 >>> or_("x=1", or_("y=1", "z=1")).sql() -4557 'x = 1 OR (y = 1 OR z = 1)' -4558 -4559 Args: -4560 *expressions (str | Expression): the SQL code strings to parse. -4561 If an Expression instance is passed, this is used as-is. -4562 dialect (str): the dialect used to parse the input expression. -4563 **opts: other options to use to parse the input expressions. -4564 -4565 Returns: -4566 Or: the new condition -4567 """ -4568 return _combine(expressions, Or, dialect, **opts) -4569 -4570 -4571def not_(expression, dialect=None, **opts) -> Not: -4572 """ -4573 Wrap a condition with a NOT operator. -4574 -4575 Example: -4576 >>> not_("this_suit='black'").sql() -4577 "NOT this_suit = 'black'" -4578 -4579 Args: -4580 expression (str | Expression): the SQL code strings to parse. -4581 If an Expression instance is passed, this is used as-is. -4582 dialect (str): the dialect used to parse the input expression. -4583 **opts: other options to use to parse the input expressions. -4584 -4585 Returns: -4586 Not: the new condition -4587 """ -4588 this = condition( -4589 expression, -4590 dialect=dialect, -4591 **opts, -4592 ) -4593 return Not(this=_wrap_operator(this)) -4594 -4595 -4596def paren(expression) -> Paren: -4597 return Paren(this=expression) -4598 -4599 -4600SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") -4601 -4602 -4603@t.overload -4604def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: -4605 ... -4606 -4607 -4608@t.overload -4609def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: -4610 ... -4611 -4612 -4613def to_identifier(name, quoted=None): -4614 """Builds an identifier. -4615 -4616 Args: -4617 name: The name to turn into an identifier. -4618 quoted: Whether or not force quote the identifier. -4619 -4620 Returns: -4621 The identifier ast node. -4622 """ -4623 -4624 if name is None: -4625 return None -4626 -4627 if isinstance(name, Identifier): -4628 identifier = name -4629 elif isinstance(name, str): -4630 identifier = Identifier( -4631 this=name, -4632 quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted, -4633 ) -4634 else: -4635 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") -4636 return identifier +4555 Args: +4556 *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a +4557 SELECT statement. If an Expression instance is passed, this is used as-is. +4558 dialect (str): the dialect used to parse the input expression (in the case that the +4559 input expression is a SQL string). +4560 **opts: other options to use to parse the input expressions (again, in the case +4561 that the input expression is a SQL string). +4562 +4563 Returns: +4564 Select: the syntax tree for the SELECT statement. +4565 """ +4566 return Select().from_(*expressions, dialect=dialect, **opts) +4567 +4568 +4569def update( +4570 table: str | Table, +4571 properties: dict, +4572 where: t.Optional[ExpOrStr] = None, +4573 from_: t.Optional[ExpOrStr] = None, +4574 dialect: DialectType = None, +4575 **opts, +4576) -> Update: +4577 """ +4578 Creates an update statement. +4579 +4580 Example: +4581 >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql() +4582 "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1" +4583 +4584 Args: +4585 *properties: dictionary of properties to set which are +4586 auto converted to sql objects eg None -> NULL +4587 where: sql conditional parsed into a WHERE statement +4588 from_: sql statement parsed into a FROM statement +4589 dialect: the dialect used to parse the input expressions. +4590 **opts: other options to use to parse the input expressions. +4591 +4592 Returns: +4593 Update: the syntax tree for the UPDATE statement. +4594 """ +4595 update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect)) +4596 update_expr.set( +4597 "expressions", +4598 [ +4599 EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v)) +4600 for k, v in properties.items() +4601 ], +4602 ) +4603 if from_: +4604 update_expr.set( +4605 "from", +4606 maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts), +4607 ) +4608 if isinstance(where, Condition): +4609 where = Where(this=where) +4610 if where: +4611 update_expr.set( +4612 "where", +4613 maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts), +4614 ) +4615 return update_expr +4616 +4617 +4618def delete( +4619 table: ExpOrStr, +4620 where: t.Optional[ExpOrStr] = None, +4621 returning: t.Optional[ExpOrStr] = None, +4622 dialect: DialectType = None, +4623 **opts, +4624) -> Delete: +4625 """ +4626 Builds a delete statement. +4627 +4628 Example: +4629 >>> delete("my_table", where="id > 1").sql() +4630 'DELETE FROM my_table WHERE id > 1' +4631 +4632 Args: +4633 where: sql conditional parsed into a WHERE statement +4634 returning: sql conditional parsed into a RETURNING statement +4635 dialect: the dialect used to parse the input expressions. +4636 **opts: other options to use to parse the input expressions. 4637 -4638 -4639INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") -4640 -4641 -4642def to_interval(interval: str | Literal) -> Interval: -4643 """Builds an interval expression from a string like '1 day' or '5 months'.""" -4644 if isinstance(interval, Literal): -4645 if not interval.is_string: -4646 raise ValueError("Invalid interval string.") +4638 Returns: +4639 Delete: the syntax tree for the DELETE statement. +4640 """ +4641 delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts) +4642 if where: +4643 delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts) +4644 if returning: +4645 delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts) +4646 return delete_expr 4647 -4648 interval = interval.this -4649 -4650 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore -4651 -4652 if not interval_parts: -4653 raise ValueError("Invalid interval string.") -4654 -4655 return Interval( -4656 this=Literal.string(interval_parts.group(1)), -4657 unit=Var(this=interval_parts.group(2)), -4658 ) -4659 -4660 -4661@t.overload -4662def to_table(sql_path: str | Table, **kwargs) -> Table: -4663 ... -4664 -4665 -4666@t.overload -4667def to_table(sql_path: None, **kwargs) -> None: -4668 ... -4669 -4670 -4671def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: -4672 """ -4673 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. -4674 If a table is passed in then that table is returned. -4675 -4676 Args: -4677 sql_path: a `[catalog].[schema].[table]` string. -4678 -4679 Returns: -4680 A table expression. -4681 """ -4682 if sql_path is None or isinstance(sql_path, Table): -4683 return sql_path -4684 if not isinstance(sql_path, str): -4685 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") -4686 -4687 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) -4688 return Table(this=table_name, db=db, catalog=catalog, **kwargs) -4689 -4690 -4691def to_column(sql_path: str | Column, **kwargs) -> Column: -4692 """ -4693 Create a column from a `[table].[column]` sql path. Schema is optional. -4694 -4695 If a column is passed in then that column is returned. -4696 -4697 Args: -4698 sql_path: `[table].[column]` string +4648 +4649def condition(expression, dialect=None, copy=True, **opts) -> Condition: +4650 """ +4651 Initialize a logical condition expression. +4652 +4653 Example: +4654 >>> condition("x=1").sql() +4655 'x = 1' +4656 +4657 This is helpful for composing larger logical syntax trees: +4658 >>> where = condition("x=1") +4659 >>> where = where.and_("y=1") +4660 >>> Select().from_("tbl").select("*").where(where).sql() +4661 'SELECT * FROM tbl WHERE x = 1 AND y = 1' +4662 +4663 Args: +4664 *expression (str | Expression): the SQL code string to parse. +4665 If an Expression instance is passed, this is used as-is. +4666 dialect (str): the dialect used to parse the input expression (in the case that the +4667 input expression is a SQL string). +4668 copy (bool): Whether or not to copy `expression` (only applies to expressions). +4669 **opts: other options to use to parse the input expressions (again, in the case +4670 that the input expression is a SQL string). +4671 +4672 Returns: +4673 Condition: the expression +4674 """ +4675 return maybe_parse( # type: ignore +4676 expression, +4677 into=Condition, +4678 dialect=dialect, +4679 copy=copy, +4680 **opts, +4681 ) +4682 +4683 +4684def and_(*expressions, dialect=None, copy=True, **opts) -> And: +4685 """ +4686 Combine multiple conditions with an AND logical operator. +4687 +4688 Example: +4689 >>> and_("x=1", and_("y=1", "z=1")).sql() +4690 'x = 1 AND (y = 1 AND z = 1)' +4691 +4692 Args: +4693 *expressions (str | Expression): the SQL code strings to parse. +4694 If an Expression instance is passed, this is used as-is. +4695 dialect (str): the dialect used to parse the input expression. +4696 copy (bool): whether or not to copy `expressions` (only applies to Expressions). +4697 **opts: other options to use to parse the input expressions. +4698 4699 Returns: -4700 Table: A column expression +4700 And: the new condition 4701 """ -4702 if sql_path is None or isinstance(sql_path, Column): -4703 return sql_path -4704 if not isinstance(sql_path, str): -4705 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") -4706 return column(*reversed(sql_path.split(".")), **kwargs) # type: ignore -4707 +4702 return _combine(expressions, And, dialect, copy=copy, **opts) +4703 +4704 +4705def or_(*expressions, dialect=None, copy=True, **opts) -> Or: +4706 """ +4707 Combine multiple conditions with an OR logical operator. 4708 -4709def alias_( -4710 expression: ExpOrStr, -4711 alias: str | Identifier, -4712 table: bool | t.Sequence[str | Identifier] = False, -4713 quoted: t.Optional[bool] = None, -4714 dialect: DialectType = None, -4715 **opts, -4716): -4717 """Create an Alias expression. -4718 -4719 Example: -4720 >>> alias_('foo', 'bar').sql() -4721 'foo AS bar' -4722 -4723 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() -4724 '(SELECT 1, 2) AS bar(a, b)' +4709 Example: +4710 >>> or_("x=1", or_("y=1", "z=1")).sql() +4711 'x = 1 OR (y = 1 OR z = 1)' +4712 +4713 Args: +4714 *expressions (str | Expression): the SQL code strings to parse. +4715 If an Expression instance is passed, this is used as-is. +4716 dialect (str): the dialect used to parse the input expression. +4717 copy (bool): whether or not to copy `expressions` (only applies to Expressions). +4718 **opts: other options to use to parse the input expressions. +4719 +4720 Returns: +4721 Or: the new condition +4722 """ +4723 return _combine(expressions, Or, dialect, copy=copy, **opts) +4724 4725 -4726 Args: -4727 expression: the SQL code strings to parse. -4728 If an Expression instance is passed, this is used as-is. -4729 alias: the alias name to use. If the name has -4730 special characters it is quoted. -4731 table: Whether or not to create a table alias, can also be a list of columns. -4732 quoted: whether or not to quote the alias -4733 dialect: the dialect used to parse the input expression. -4734 **opts: other options to use to parse the input expressions. -4735 -4736 Returns: -4737 Alias: the aliased expression -4738 """ -4739 exp = maybe_parse(expression, dialect=dialect, **opts) -4740 alias = to_identifier(alias, quoted=quoted) -4741 -4742 if table: -4743 table_alias = TableAlias(this=alias) -4744 -4745 exp = exp.copy() if isinstance(expression, Expression) else exp -4746 exp.set("alias", table_alias) -4747 -4748 if not isinstance(table, bool): -4749 for column in table: -4750 table_alias.append("columns", to_identifier(column, quoted=quoted)) +4726def not_(expression, dialect=None, copy=True, **opts) -> Not: +4727 """ +4728 Wrap a condition with a NOT operator. +4729 +4730 Example: +4731 >>> not_("this_suit='black'").sql() +4732 "NOT this_suit = 'black'" +4733 +4734 Args: +4735 expression (str | Expression): the SQL code strings to parse. +4736 If an Expression instance is passed, this is used as-is. +4737 dialect (str): the dialect used to parse the input expression. +4738 **opts: other options to use to parse the input expressions. +4739 +4740 Returns: +4741 Not: the new condition +4742 """ +4743 this = condition( +4744 expression, +4745 dialect=dialect, +4746 copy=copy, +4747 **opts, +4748 ) +4749 return Not(this=_wrap(this, Connector)) +4750 4751 -4752 return exp -4753 -4754 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in -4755 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node -4756 # for the complete Window expression. -4757 # -4758 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls -4759 -4760 if "alias" in exp.arg_types and not isinstance(exp, Window): -4761 exp = exp.copy() -4762 exp.set("alias", alias) -4763 return exp -4764 return Alias(this=exp, alias=alias) -4765 -4766 -4767def subquery(expression, alias=None, dialect=None, **opts): -4768 """ -4769 Build a subquery expression. -4770 -4771 Example: -4772 >>> subquery('select x from tbl', 'bar').select('x').sql() -4773 'SELECT x FROM (SELECT x FROM tbl) AS bar' -4774 -4775 Args: -4776 expression (str | Expression): the SQL code strings to parse. -4777 If an Expression instance is passed, this is used as-is. -4778 alias (str | Expression): the alias name to use. -4779 dialect (str): the dialect used to parse the input expression. -4780 **opts: other options to use to parse the input expressions. -4781 -4782 Returns: -4783 Select: a new select with the subquery expression included -4784 """ -4785 -4786 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) -4787 return Select().from_(expression, dialect=dialect, **opts) -4788 -4789 -4790def column( -4791 col: str | Identifier, -4792 table: t.Optional[str | Identifier] = None, -4793 db: t.Optional[str | Identifier] = None, -4794 catalog: t.Optional[str | Identifier] = None, -4795 quoted: t.Optional[bool] = None, -4796) -> Column: -4797 """ -4798 Build a Column. -4799 -4800 Args: -4801 col: column name -4802 table: table name -4803 db: db name -4804 catalog: catalog name -4805 quoted: whether or not to force quote each part -4806 Returns: -4807 Column: column instance -4808 """ -4809 return Column( -4810 this=to_identifier(col, quoted=quoted), -4811 table=to_identifier(table, quoted=quoted), -4812 db=to_identifier(db, quoted=quoted), -4813 catalog=to_identifier(catalog, quoted=quoted), +4752def paren(expression, copy=True) -> Paren: +4753 return Paren(this=_maybe_copy(expression, copy)) +4754 +4755 +4756SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") +4757 +4758 +4759@t.overload +4760def to_identifier(name: None, quoted: t.Optional[bool] = None) -> None: +4761 ... +4762 +4763 +4764@t.overload +4765def to_identifier(name: str | Identifier, quoted: t.Optional[bool] = None) -> Identifier: +4766 ... +4767 +4768 +4769def to_identifier(name, quoted=None): +4770 """Builds an identifier. +4771 +4772 Args: +4773 name: The name to turn into an identifier. +4774 quoted: Whether or not force quote the identifier. +4775 +4776 Returns: +4777 The identifier ast node. +4778 """ +4779 +4780 if name is None: +4781 return None +4782 +4783 if isinstance(name, Identifier): +4784 identifier = name +4785 elif isinstance(name, str): +4786 identifier = Identifier( +4787 this=name, +4788 quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted, +4789 ) +4790 else: +4791 raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}") +4792 return identifier +4793 +4794 +4795INTERVAL_STRING_RE = re.compile(r"\s*([0-9]+)\s*([a-zA-Z]+)\s*") +4796 +4797 +4798def to_interval(interval: str | Literal) -> Interval: +4799 """Builds an interval expression from a string like '1 day' or '5 months'.""" +4800 if isinstance(interval, Literal): +4801 if not interval.is_string: +4802 raise ValueError("Invalid interval string.") +4803 +4804 interval = interval.this +4805 +4806 interval_parts = INTERVAL_STRING_RE.match(interval) # type: ignore +4807 +4808 if not interval_parts: +4809 raise ValueError("Invalid interval string.") +4810 +4811 return Interval( +4812 this=Literal.string(interval_parts.group(1)), +4813 unit=Var(this=interval_parts.group(2)), 4814 ) 4815 4816 -4817def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast: -4818 """Cast an expression to a data type. -4819 -4820 Example: -4821 >>> cast('x + 1', 'int').sql() -4822 'CAST(x + 1 AS INT)' -4823 -4824 Args: -4825 expression: The expression to cast. -4826 to: The datatype to cast to. -4827 -4828 Returns: -4829 A cast node. -4830 """ -4831 expression = maybe_parse(expression, **opts) -4832 return Cast(this=expression, to=DataType.build(to, **opts)) -4833 +4817@t.overload +4818def to_table(sql_path: str | Table, **kwargs) -> Table: +4819 ... +4820 +4821 +4822@t.overload +4823def to_table(sql_path: None, **kwargs) -> None: +4824 ... +4825 +4826 +4827def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]: +4828 """ +4829 Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional. +4830 If a table is passed in then that table is returned. +4831 +4832 Args: +4833 sql_path: a `[catalog].[schema].[table]` string. 4834 -4835def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: -4836 """Build a Table. -4837 -4838 Args: -4839 table (str | Expression): column name -4840 db (str | Expression): db name -4841 catalog (str | Expression): catalog name +4835 Returns: +4836 A table expression. +4837 """ +4838 if sql_path is None or isinstance(sql_path, Table): +4839 return sql_path +4840 if not isinstance(sql_path, str): +4841 raise ValueError(f"Invalid type provided for a table: {type(sql_path)}") 4842 -4843 Returns: -4844 Table: table instance -4845 """ -4846 return Table( -4847 this=to_identifier(table, quoted=quoted), -4848 db=to_identifier(db, quoted=quoted), -4849 catalog=to_identifier(catalog, quoted=quoted), -4850 alias=TableAlias(this=to_identifier(alias)) if alias else None, -4851 ) +4843 catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3)) +4844 return Table(this=table_name, db=db, catalog=catalog, **kwargs) +4845 +4846 +4847def to_column(sql_path: str | Column, **kwargs) -> Column: +4848 """ +4849 Create a column from a `[table].[column]` sql path. Schema is optional. +4850 +4851 If a column is passed in then that column is returned. 4852 -4853 -4854def values( -4855 values: t.Iterable[t.Tuple[t.Any, ...]], -4856 alias: t.Optional[str] = None, -4857 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, -4858) -> Values: -4859 """Build VALUES statement. -4860 -4861 Example: -4862 >>> values([(1, '2')]).sql() -4863 "VALUES (1, '2')" +4853 Args: +4854 sql_path: `[table].[column]` string +4855 Returns: +4856 Table: A column expression +4857 """ +4858 if sql_path is None or isinstance(sql_path, Column): +4859 return sql_path +4860 if not isinstance(sql_path, str): +4861 raise ValueError(f"Invalid type provided for column: {type(sql_path)}") +4862 return column(*reversed(sql_path.split(".")), **kwargs) # type: ignore +4863 4864 -4865 Args: -4866 values: values statements that will be converted to SQL -4867 alias: optional alias -4868 columns: Optional list of ordered column names or ordered dictionary of column names to types. -4869 If either are provided then an alias is also required. -4870 If a dictionary is provided then the first column of the values will be casted to the expected type -4871 in order to help with type inference. -4872 -4873 Returns: -4874 Values: the Values expression object -4875 """ -4876 if columns and not alias: -4877 raise ValueError("Alias is required when providing columns") -4878 table_alias = ( -4879 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) -4880 if columns -4881 else TableAlias(this=to_identifier(alias) if alias else None) -4882 ) -4883 expressions = [convert(tup) for tup in values] -4884 if columns and isinstance(columns, dict): -4885 types = list(columns.values()) -4886 expressions[0].set( -4887 "expressions", -4888 [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], -4889 ) -4890 return Values( -4891 expressions=expressions, -4892 alias=table_alias, -4893 ) -4894 -4895 -4896def var(name: t.Optional[ExpOrStr]) -> Var: -4897 """Build a SQL variable. -4898 -4899 Example: -4900 >>> repr(var('x')) -4901 '(VAR this: x)' -4902 -4903 >>> repr(var(column('x', table='y'))) -4904 '(VAR this: x)' -4905 -4906 Args: -4907 name: The name of the var or an expression who's name will become the var. -4908 -4909 Returns: -4910 The new variable node. -4911 """ -4912 if not name: -4913 raise ValueError("Cannot convert empty name into var.") -4914 -4915 if isinstance(name, Expression): -4916 name = name.name -4917 return Var(this=name) -4918 -4919 -4920def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: -4921 """Build ALTER TABLE... RENAME... expression +4865def alias_( +4866 expression: ExpOrStr, +4867 alias: str | Identifier, +4868 table: bool | t.Sequence[str | Identifier] = False, +4869 quoted: t.Optional[bool] = None, +4870 dialect: DialectType = None, +4871 **opts, +4872): +4873 """Create an Alias expression. +4874 +4875 Example: +4876 >>> alias_('foo', 'bar').sql() +4877 'foo AS bar' +4878 +4879 >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql() +4880 '(SELECT 1, 2) AS bar(a, b)' +4881 +4882 Args: +4883 expression: the SQL code strings to parse. +4884 If an Expression instance is passed, this is used as-is. +4885 alias: the alias name to use. If the name has +4886 special characters it is quoted. +4887 table: Whether or not to create a table alias, can also be a list of columns. +4888 quoted: whether or not to quote the alias +4889 dialect: the dialect used to parse the input expression. +4890 **opts: other options to use to parse the input expressions. +4891 +4892 Returns: +4893 Alias: the aliased expression +4894 """ +4895 exp = maybe_parse(expression, dialect=dialect, **opts) +4896 alias = to_identifier(alias, quoted=quoted) +4897 +4898 if table: +4899 table_alias = TableAlias(this=alias) +4900 +4901 exp = exp.copy() if isinstance(expression, Expression) else exp +4902 exp.set("alias", table_alias) +4903 +4904 if not isinstance(table, bool): +4905 for column in table: +4906 table_alias.append("columns", to_identifier(column, quoted=quoted)) +4907 +4908 return exp +4909 +4910 # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in +4911 # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node +4912 # for the complete Window expression. +4913 # +4914 # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls +4915 +4916 if "alias" in exp.arg_types and not isinstance(exp, Window): +4917 exp = exp.copy() +4918 exp.set("alias", alias) +4919 return exp +4920 return Alias(this=exp, alias=alias) +4921 4922 -4923 Args: -4924 old_name: The old name of the table -4925 new_name: The new name of the table +4923def subquery(expression, alias=None, dialect=None, **opts): +4924 """ +4925 Build a subquery expression. 4926 -4927 Returns: -4928 Alter table expression -4929 """ -4930 old_table = to_table(old_name) -4931 new_table = to_table(new_name) -4932 return AlterTable( -4933 this=old_table, -4934 actions=[ -4935 RenameTable(this=new_table), -4936 ], -4937 ) -4938 -4939 -4940def convert(value) -> Expression: -4941 """Convert a python value into an expression object. -4942 -4943 Raises an error if a conversion is not possible. +4927 Example: +4928 >>> subquery('select x from tbl', 'bar').select('x').sql() +4929 'SELECT x FROM (SELECT x FROM tbl) AS bar' +4930 +4931 Args: +4932 expression (str | Expression): the SQL code strings to parse. +4933 If an Expression instance is passed, this is used as-is. +4934 alias (str | Expression): the alias name to use. +4935 dialect (str): the dialect used to parse the input expression. +4936 **opts: other options to use to parse the input expressions. +4937 +4938 Returns: +4939 Select: a new select with the subquery expression included +4940 """ +4941 +4942 expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias) +4943 return Select().from_(expression, dialect=dialect, **opts) 4944 -4945 Args: -4946 value (Any): a python object -4947 -4948 Returns: -4949 Expression: the equivalent expression object -4950 """ -4951 if isinstance(value, Expression): -4952 return value -4953 if value is None: -4954 return NULL -4955 if isinstance(value, bool): -4956 return Boolean(this=value) -4957 if isinstance(value, str): -4958 return Literal.string(value) -4959 if isinstance(value, float) and math.isnan(value): -4960 return NULL -4961 if isinstance(value, numbers.Number): -4962 return Literal.number(value) -4963 if isinstance(value, tuple): -4964 return Tuple(expressions=[convert(v) for v in value]) -4965 if isinstance(value, list): -4966 return Array(expressions=[convert(v) for v in value]) -4967 if isinstance(value, dict): -4968 return Map( -4969 keys=[convert(k) for k in value], -4970 values=[convert(v) for v in value.values()], -4971 ) -4972 if isinstance(value, datetime.datetime): -4973 datetime_literal = Literal.string( -4974 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() -4975 ) -4976 return TimeStrToTime(this=datetime_literal) -4977 if isinstance(value, datetime.date): -4978 date_literal = Literal.string(value.strftime("%Y-%m-%d")) -4979 return DateStrToDate(this=date_literal) -4980 raise ValueError(f"Cannot convert {value}") -4981 -4982 -4983def replace_children(expression, fun, *args, **kwargs): -4984 """ -4985 Replace children of an expression with the result of a lambda fun(child) -> exp. +4945 +4946def column( +4947 col: str | Identifier, +4948 table: t.Optional[str | Identifier] = None, +4949 db: t.Optional[str | Identifier] = None, +4950 catalog: t.Optional[str | Identifier] = None, +4951 quoted: t.Optional[bool] = None, +4952) -> Column: +4953 """ +4954 Build a Column. +4955 +4956 Args: +4957 col: column name +4958 table: table name +4959 db: db name +4960 catalog: catalog name +4961 quoted: whether or not to force quote each part +4962 Returns: +4963 Column: column instance +4964 """ +4965 return Column( +4966 this=to_identifier(col, quoted=quoted), +4967 table=to_identifier(table, quoted=quoted), +4968 db=to_identifier(db, quoted=quoted), +4969 catalog=to_identifier(catalog, quoted=quoted), +4970 ) +4971 +4972 +4973def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast: +4974 """Cast an expression to a data type. +4975 +4976 Example: +4977 >>> cast('x + 1', 'int').sql() +4978 'CAST(x + 1 AS INT)' +4979 +4980 Args: +4981 expression: The expression to cast. +4982 to: The datatype to cast to. +4983 +4984 Returns: +4985 A cast node. 4986 """ -4987 for k, v in expression.args.items(): -4988 is_list_arg = type(v) is list +4987 expression = maybe_parse(expression, **opts) +4988 return Cast(this=expression, to=DataType.build(to, **opts)) 4989 -4990 child_nodes = v if is_list_arg else [v] -4991 new_child_nodes = [] -4992 -4993 for cn in child_nodes: -4994 if isinstance(cn, Expression): -4995 for child_node in ensure_collection(fun(cn, *args, **kwargs)): -4996 new_child_nodes.append(child_node) -4997 child_node.parent = expression -4998 child_node.arg_key = k -4999 else: -5000 new_child_nodes.append(cn) -5001 -5002 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) -5003 -5004 -5005def column_table_names(expression): -5006 """ -5007 Return all table names referenced through columns in an expression. +4990 +4991def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table: +4992 """Build a Table. +4993 +4994 Args: +4995 table (str | Expression): column name +4996 db (str | Expression): db name +4997 catalog (str | Expression): catalog name +4998 +4999 Returns: +5000 Table: table instance +5001 """ +5002 return Table( +5003 this=to_identifier(table, quoted=quoted), +5004 db=to_identifier(db, quoted=quoted), +5005 catalog=to_identifier(catalog, quoted=quoted), +5006 alias=TableAlias(this=to_identifier(alias)) if alias else None, +5007 ) 5008 -5009 Example: -5010 >>> import sqlglot -5011 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) -5012 ['c', 'a'] -5013 -5014 Args: -5015 expression (sqlglot.Expression): expression to find table names +5009 +5010def values( +5011 values: t.Iterable[t.Tuple[t.Any, ...]], +5012 alias: t.Optional[str] = None, +5013 columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None, +5014) -> Values: +5015 """Build VALUES statement. 5016 -5017 Returns: -5018 list: A list of unique names -5019 """ -5020 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) -5021 -5022 -5023def table_name(table) -> str: -5024 """Get the full name of a table as a string. -5025 -5026 Args: -5027 table (exp.Table | str): table expression node or string. -5028 -5029 Examples: -5030 >>> from sqlglot import exp, parse_one -5031 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) -5032 'a.b.c' -5033 -5034 Returns: -5035 The table name. -5036 """ -5037 -5038 table = maybe_parse(table, into=Table) -5039 -5040 if not table: -5041 raise ValueError(f"Cannot parse {table}") +5017 Example: +5018 >>> values([(1, '2')]).sql() +5019 "VALUES (1, '2')" +5020 +5021 Args: +5022 values: values statements that will be converted to SQL +5023 alias: optional alias +5024 columns: Optional list of ordered column names or ordered dictionary of column names to types. +5025 If either are provided then an alias is also required. +5026 +5027 Returns: +5028 Values: the Values expression object +5029 """ +5030 if columns and not alias: +5031 raise ValueError("Alias is required when providing columns") +5032 +5033 return Values( +5034 expressions=[convert(tup) for tup in values], +5035 alias=( +5036 TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) +5037 if columns +5038 else (TableAlias(this=to_identifier(alias)) if alias else None) +5039 ), +5040 ) +5041 5042 -5043 return ".".join( -5044 part -5045 for part in ( -5046 table.text("catalog"), -5047 table.text("db"), -5048 table.name, -5049 ) -5050 if part -5051 ) +5043def var(name: t.Optional[ExpOrStr]) -> Var: +5044 """Build a SQL variable. +5045 +5046 Example: +5047 >>> repr(var('x')) +5048 '(VAR this: x)' +5049 +5050 >>> repr(var(column('x', table='y'))) +5051 '(VAR this: x)' 5052 -5053 -5054def replace_tables(expression, mapping): -5055 """Replace all tables in expression according to the mapping. -5056 -5057 Args: -5058 expression (sqlglot.Expression): expression node to be transformed and replaced. -5059 mapping (Dict[str, str]): mapping of table names. -5060 -5061 Examples: -5062 >>> from sqlglot import exp, parse_one -5063 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() -5064 'SELECT * FROM c' +5053 Args: +5054 name: The name of the var or an expression who's name will become the var. +5055 +5056 Returns: +5057 The new variable node. +5058 """ +5059 if not name: +5060 raise ValueError("Cannot convert empty name into var.") +5061 +5062 if isinstance(name, Expression): +5063 name = name.name +5064 return Var(this=name) 5065 -5066 Returns: -5067 The mapped expression. -5068 """ +5066 +5067def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: +5068 """Build ALTER TABLE... RENAME... expression 5069 -5070 def _replace_tables(node): -5071 if isinstance(node, Table): -5072 new_name = mapping.get(table_name(node)) -5073 if new_name: -5074 return to_table( -5075 new_name, -5076 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, -5077 ) -5078 return node -5079 -5080 return expression.transform(_replace_tables) -5081 -5082 -5083def replace_placeholders(expression, *args, **kwargs): -5084 """Replace placeholders in an expression. +5070 Args: +5071 old_name: The old name of the table +5072 new_name: The new name of the table +5073 +5074 Returns: +5075 Alter table expression +5076 """ +5077 old_table = to_table(old_name) +5078 new_table = to_table(new_name) +5079 return AlterTable( +5080 this=old_table, +5081 actions=[ +5082 RenameTable(this=new_table), +5083 ], +5084 ) 5085 -5086 Args: -5087 expression (sqlglot.Expression): expression node to be transformed and replaced. -5088 args: positional names that will substitute unnamed placeholders in the given order. -5089 kwargs: keyword arguments that will substitute named placeholders. -5090 -5091 Examples: -5092 >>> from sqlglot import exp, parse_one -5093 >>> replace_placeholders( -5094 ... parse_one("select * from :tbl where ? = ?"), -5095 ... exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo") -5096 ... ).sql() -5097 "SELECT * FROM foo WHERE str_col = 'b'" -5098 -5099 Returns: -5100 The mapped expression. -5101 """ -5102 -5103 def _replace_placeholders(node, args, **kwargs): -5104 if isinstance(node, Placeholder): -5105 if node.name: -5106 new_name = kwargs.get(node.name) -5107 if new_name: -5108 return convert(new_name) -5109 else: -5110 try: -5111 return convert(next(args)) -5112 except StopIteration: -5113 pass -5114 return node -5115 -5116 return expression.transform(_replace_placeholders, iter(args), **kwargs) -5117 -5118 -5119def expand( -5120 expression: Expression, sources: t.Dict[str, Subqueryable], copy: bool = True -5121) -> Expression: -5122 """Transforms an expression by expanding all referenced sources into subqueries. -5123 -5124 Examples: -5125 >>> from sqlglot import parse_one -5126 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() -5127 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' +5086 +5087def convert(value: t.Any, copy: bool = False) -> Expression: +5088 """Convert a python value into an expression object. +5089 +5090 Raises an error if a conversion is not possible. +5091 +5092 Args: +5093 value: A python object. +5094 copy: Whether or not to copy `value` (only applies to Expressions and collections). +5095 +5096 Returns: +5097 Expression: the equivalent expression object. +5098 """ +5099 if isinstance(value, Expression): +5100 return _maybe_copy(value, copy) +5101 if isinstance(value, str): +5102 return Literal.string(value) +5103 if isinstance(value, bool): +5104 return Boolean(this=value) +5105 if value is None or (isinstance(value, float) and math.isnan(value)): +5106 return NULL +5107 if isinstance(value, numbers.Number): +5108 return Literal.number(value) +5109 if isinstance(value, datetime.datetime): +5110 datetime_literal = Literal.string( +5111 (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat() +5112 ) +5113 return TimeStrToTime(this=datetime_literal) +5114 if isinstance(value, datetime.date): +5115 date_literal = Literal.string(value.strftime("%Y-%m-%d")) +5116 return DateStrToDate(this=date_literal) +5117 if isinstance(value, tuple): +5118 return Tuple(expressions=[convert(v, copy=copy) for v in value]) +5119 if isinstance(value, list): +5120 return Array(expressions=[convert(v, copy=copy) for v in value]) +5121 if isinstance(value, dict): +5122 return Map( +5123 keys=[convert(k, copy=copy) for k in value], +5124 values=[convert(v, copy=copy) for v in value.values()], +5125 ) +5126 raise ValueError(f"Cannot convert {value}") +5127 5128 -5129 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql() -5130 'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */' -5131 -5132 Args: -5133 expression: The expression to expand. -5134 sources: A dictionary of name to Subqueryables. -5135 copy: Whether or not to copy the expression during transformation. Defaults to True. -5136 -5137 Returns: -5138 The transformed expression. -5139 """ -5140 -5141 def _expand(node: Expression): -5142 if isinstance(node, Table): -5143 name = table_name(node) -5144 source = sources.get(name) -5145 if source: -5146 subquery = source.subquery(node.alias or name) -5147 subquery.comments = [f"source: {name}"] -5148 return subquery.transform(_expand, copy=False) -5149 return node +5129def replace_children(expression, fun, *args, **kwargs): +5130 """ +5131 Replace children of an expression with the result of a lambda fun(child) -> exp. +5132 """ +5133 for k, v in expression.args.items(): +5134 is_list_arg = type(v) is list +5135 +5136 child_nodes = v if is_list_arg else [v] +5137 new_child_nodes = [] +5138 +5139 for cn in child_nodes: +5140 if isinstance(cn, Expression): +5141 for child_node in ensure_collection(fun(cn, *args, **kwargs)): +5142 new_child_nodes.append(child_node) +5143 child_node.parent = expression +5144 child_node.arg_key = k +5145 else: +5146 new_child_nodes.append(cn) +5147 +5148 expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0) +5149 5150 -5151 return expression.transform(_expand, copy=copy) -5152 -5153 -5154def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: -5155 """ -5156 Returns a Func expression. -5157 -5158 Examples: -5159 >>> func("abs", 5).sql() -5160 'ABS(5)' -5161 -5162 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() -5163 'CAST(5 AS DOUBLE)' -5164 -5165 Args: -5166 name: the name of the function to build. -5167 args: the args used to instantiate the function of interest. -5168 dialect: the source dialect. -5169 kwargs: the kwargs used to instantiate the function of interest. -5170 -5171 Note: -5172 The arguments `args` and `kwargs` are mutually exclusive. -5173 -5174 Returns: -5175 An instance of the function of interest, or an anonymous function, if `name` doesn't -5176 correspond to an existing `sqlglot.expressions.Func` class. -5177 """ -5178 if args and kwargs: -5179 raise ValueError("Can't use both args and kwargs to instantiate a function.") -5180 -5181 from sqlglot.dialects.dialect import Dialect -5182 -5183 converted = [convert(arg) for arg in args] -5184 kwargs = {key: convert(value) for key, value in kwargs.items()} +5151def column_table_names(expression): +5152 """ +5153 Return all table names referenced through columns in an expression. +5154 +5155 Example: +5156 >>> import sqlglot +5157 >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e")) +5158 ['c', 'a'] +5159 +5160 Args: +5161 expression (sqlglot.Expression): expression to find table names +5162 +5163 Returns: +5164 list: A list of unique names +5165 """ +5166 return list(dict.fromkeys(column.table for column in expression.find_all(Column))) +5167 +5168 +5169def table_name(table) -> str: +5170 """Get the full name of a table as a string. +5171 +5172 Args: +5173 table (exp.Table | str): table expression node or string. +5174 +5175 Examples: +5176 >>> from sqlglot import exp, parse_one +5177 >>> table_name(parse_one("select * from a.b.c").find(exp.Table)) +5178 'a.b.c' +5179 +5180 Returns: +5181 The table name. +5182 """ +5183 +5184 table = maybe_parse(table, into=Table) 5185 -5186 parser = Dialect.get_or_raise(dialect)().parser() -5187 from_args_list = parser.FUNCTIONS.get(name.upper()) +5186 if not table: +5187 raise ValueError(f"Cannot parse {table}") 5188 -5189 if from_args_list: -5190 function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore -5191 else: -5192 kwargs = kwargs or {"expressions": converted} -5193 function = Anonymous(this=name, **kwargs) -5194 -5195 for error_message in function.error_messages(converted): -5196 raise ValueError(error_message) -5197 -5198 return function +5189 return ".".join( +5190 part +5191 for part in ( +5192 table.text("catalog"), +5193 table.text("db"), +5194 table.name, +5195 ) +5196 if part +5197 ) +5198 5199 -5200 -5201def true(): -5202 """ -5203 Returns a true Boolean expression. -5204 """ -5205 return Boolean(this=True) +5200def replace_tables(expression, mapping): +5201 """Replace all tables in expression according to the mapping. +5202 +5203 Args: +5204 expression (sqlglot.Expression): expression node to be transformed and replaced. +5205 mapping (Dict[str, str]): mapping of table names. 5206 -5207 -5208def false(): -5209 """ -5210 Returns a false Boolean expression. -5211 """ -5212 return Boolean(this=False) -5213 -5214 -5215def null(): -5216 """ -5217 Returns a Null expression. -5218 """ -5219 return Null() -5220 -5221 -5222# TODO: deprecate this -5223TRUE = Boolean(this=True) -5224FALSE = Boolean(this=False) -5225NULL = Null() +5207 Examples: +5208 >>> from sqlglot import exp, parse_one +5209 >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql() +5210 'SELECT * FROM c' +5211 +5212 Returns: +5213 The mapped expression. +5214 """ +5215 +5216 def _replace_tables(node): +5217 if isinstance(node, Table): +5218 new_name = mapping.get(table_name(node)) +5219 if new_name: +5220 return to_table( +5221 new_name, +5222 **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")}, +5223 ) +5224 return node +5225 +5226 return expression.transform(_replace_tables) +5227 +5228 +5229def replace_placeholders(expression, *args, **kwargs): +5230 """Replace placeholders in an expression. +5231 +5232 Args: +5233 expression (sqlglot.Expression): expression node to be transformed and replaced. +5234 args: positional names that will substitute unnamed placeholders in the given order. +5235 kwargs: keyword arguments that will substitute named placeholders. +5236 +5237 Examples: +5238 >>> from sqlglot import exp, parse_one +5239 >>> replace_placeholders( +5240 ... parse_one("select * from :tbl where ? = ?"), +5241 ... exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo") +5242 ... ).sql() +5243 "SELECT * FROM foo WHERE str_col = 'b'" +5244 +5245 Returns: +5246 The mapped expression. +5247 """ +5248 +5249 def _replace_placeholders(node, args, **kwargs): +5250 if isinstance(node, Placeholder): +5251 if node.name: +5252 new_name = kwargs.get(node.name) +5253 if new_name: +5254 return convert(new_name) +5255 else: +5256 try: +5257 return convert(next(args)) +5258 except StopIteration: +5259 pass +5260 return node +5261 +5262 return expression.transform(_replace_placeholders, iter(args), **kwargs) +5263 +5264 +5265def expand( +5266 expression: Expression, sources: t.Dict[str, Subqueryable], copy: bool = True +5267) -> Expression: +5268 """Transforms an expression by expanding all referenced sources into subqueries. +5269 +5270 Examples: +5271 >>> from sqlglot import parse_one +5272 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql() +5273 'SELECT * FROM (SELECT * FROM y) AS z /* source: x */' +5274 +5275 >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql() +5276 'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */' +5277 +5278 Args: +5279 expression: The expression to expand. +5280 sources: A dictionary of name to Subqueryables. +5281 copy: Whether or not to copy the expression during transformation. Defaults to True. +5282 +5283 Returns: +5284 The transformed expression. +5285 """ +5286 +5287 def _expand(node: Expression): +5288 if isinstance(node, Table): +5289 name = table_name(node) +5290 source = sources.get(name) +5291 if source: +5292 subquery = source.subquery(node.alias or name) +5293 subquery.comments = [f"source: {name}"] +5294 return subquery.transform(_expand, copy=False) +5295 return node +5296 +5297 return expression.transform(_expand, copy=copy) +5298 +5299 +5300def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func: +5301 """ +5302 Returns a Func expression. +5303 +5304 Examples: +5305 >>> func("abs", 5).sql() +5306 'ABS(5)' +5307 +5308 >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql() +5309 'CAST(5 AS DOUBLE)' +5310 +5311 Args: +5312 name: the name of the function to build. +5313 args: the args used to instantiate the function of interest. +5314 dialect: the source dialect. +5315 kwargs: the kwargs used to instantiate the function of interest. +5316 +5317 Note: +5318 The arguments `args` and `kwargs` are mutually exclusive. +5319 +5320 Returns: +5321 An instance of the function of interest, or an anonymous function, if `name` doesn't +5322 correspond to an existing `sqlglot.expressions.Func` class. +5323 """ +5324 if args and kwargs: +5325 raise ValueError("Can't use both args and kwargs to instantiate a function.") +5326 +5327 from sqlglot.dialects.dialect import Dialect +5328 +5329 converted: t.List[Expression] = [maybe_parse(arg, dialect=dialect) for arg in args] +5330 kwargs = {key: maybe_parse(value, dialect=dialect) for key, value in kwargs.items()} +5331 +5332 parser = Dialect.get_or_raise(dialect)().parser() +5333 from_args_list = parser.FUNCTIONS.get(name.upper()) +5334 +5335 if from_args_list: +5336 function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs) # type: ignore +5337 else: +5338 kwargs = kwargs or {"expressions": converted} +5339 function = Anonymous(this=name, **kwargs) +5340 +5341 for error_message in function.error_messages(converted): +5342 raise ValueError(error_message) +5343 +5344 return function +5345 +5346 +5347def true(): +5348 """ +5349 Returns a true Boolean expression. +5350 """ +5351 return Boolean(this=True) +5352 +5353 +5354def false(): +5355 """ +5356 Returns a false Boolean expression. +5357 """ +5358 return Boolean(this=False) +5359 +5360 +5361def null(): +5362 """ +5363 Returns a Null expression. +5364 """ +5365 return Null() +5366 +5367 +5368# TODO: deprecate this +5369TRUE = Boolean(this=True) +5370FALSE = Boolean(this=False) +5371NULL = Null()
  • @@ -10116,7 +10295,7 @@ to check that the provided arguments don't exceed the function argument limit.
    653class Condition(Expression):
    -654    def and_(self, *expressions, dialect=None, **opts):
    +654    def and_(self, *expressions, dialect=None, copy=True, **opts):
     655        """
     656        AND this condition with one or multiple expressions.
     657
    @@ -10128,44 +10307,167 @@ to check that the provided arguments don't exceed the function argument limit.663            *expressions (str | Expression): the SQL code strings to parse.
     664                If an `Expression` instance is passed, it will be used as-is.
     665            dialect (str): the dialect used to parse the input expression.
    -666            opts (kwargs): other options to use to parse the input expressions.
    -667
    -668        Returns:
    -669            And: the new condition.
    -670        """
    -671        return and_(self, *expressions, dialect=dialect, **opts)
    -672
    -673    def or_(self, *expressions, dialect=None, **opts):
    -674        """
    -675        OR this condition with one or multiple expressions.
    -676
    -677        Example:
    -678            >>> condition("x=1").or_("y=1").sql()
    -679            'x = 1 OR y = 1'
    -680
    -681        Args:
    -682            *expressions (str | Expression): the SQL code strings to parse.
    -683                If an `Expression` instance is passed, it will be used as-is.
    -684            dialect (str): the dialect used to parse the input expression.
    -685            opts (kwargs): other options to use to parse the input expressions.
    -686
    -687        Returns:
    -688            Or: the new condition.
    -689        """
    -690        return or_(self, *expressions, dialect=dialect, **opts)
    -691
    -692    def not_(self):
    -693        """
    -694        Wrap this condition with NOT.
    -695
    -696        Example:
    -697            >>> condition("x=1").not_().sql()
    -698            'NOT x = 1'
    -699
    -700        Returns:
    -701            Not: the new condition.
    -702        """
    -703        return not_(self)
    +666            copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
    +667            opts (kwargs): other options to use to parse the input expressions.
    +668
    +669        Returns:
    +670            And: the new condition.
    +671        """
    +672        return and_(self, *expressions, dialect=dialect, copy=copy, **opts)
    +673
    +674    def or_(self, *expressions, dialect=None, copy=True, **opts):
    +675        """
    +676        OR this condition with one or multiple expressions.
    +677
    +678        Example:
    +679            >>> condition("x=1").or_("y=1").sql()
    +680            'x = 1 OR y = 1'
    +681
    +682        Args:
    +683            *expressions (str | Expression): the SQL code strings to parse.
    +684                If an `Expression` instance is passed, it will be used as-is.
    +685            dialect (str): the dialect used to parse the input expression.
    +686            copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
    +687            opts (kwargs): other options to use to parse the input expressions.
    +688
    +689        Returns:
    +690            Or: the new condition.
    +691        """
    +692        return or_(self, *expressions, dialect=dialect, copy=copy, **opts)
    +693
    +694    def not_(self, copy=True):
    +695        """
    +696        Wrap this condition with NOT.
    +697
    +698        Example:
    +699            >>> condition("x=1").not_().sql()
    +700            'NOT x = 1'
    +701
    +702        Args:
    +703            copy (bool): whether or not to copy this object.
    +704
    +705        Returns:
    +706            Not: the new condition.
    +707        """
    +708        return not_(self, copy=copy)
    +709
    +710    def _binop(self, klass: t.Type[E], other: ExpOrStr, reverse=False) -> E:
    +711        this = self.copy()
    +712        other = convert(other, copy=True)
    +713        if not isinstance(this, klass) and not isinstance(other, klass):
    +714            this = _wrap(this, Binary)
    +715            other = _wrap(other, Binary)
    +716        if reverse:
    +717            return klass(this=other, expression=this)
    +718        return klass(this=this, expression=other)
    +719
    +720    def __getitem__(self, other: ExpOrStr | t.Tuple[ExpOrStr]):
    +721        return Bracket(
    +722            this=self.copy(), expressions=[convert(e, copy=True) for e in ensure_list(other)]
    +723        )
    +724
    +725    def isin(
    +726        self, *expressions: t.Any, query: t.Optional[ExpOrStr] = None, copy=True, **opts
    +727    ) -> In:
    +728        return In(
    +729            this=_maybe_copy(self, copy),
    +730            expressions=[convert(e, copy=copy) for e in expressions],
    +731            query=maybe_parse(query, copy=copy, **opts) if query else None,
    +732        )
    +733
    +734    def between(self, low: t.Any, high: t.Any, copy=True, **opts) -> Between:
    +735        return Between(
    +736            this=_maybe_copy(self, copy),
    +737            low=convert(low, copy=copy, **opts),
    +738            high=convert(high, copy=copy, **opts),
    +739        )
    +740
    +741    def like(self, other: ExpOrStr) -> Like:
    +742        return self._binop(Like, other)
    +743
    +744    def ilike(self, other: ExpOrStr) -> ILike:
    +745        return self._binop(ILike, other)
    +746
    +747    def eq(self, other: ExpOrStr) -> EQ:
    +748        return self._binop(EQ, other)
    +749
    +750    def neq(self, other: ExpOrStr) -> NEQ:
    +751        return self._binop(NEQ, other)
    +752
    +753    def rlike(self, other: ExpOrStr) -> RegexpLike:
    +754        return self._binop(RegexpLike, other)
    +755
    +756    def __lt__(self, other: ExpOrStr) -> LT:
    +757        return self._binop(LT, other)
    +758
    +759    def __le__(self, other: ExpOrStr) -> LTE:
    +760        return self._binop(LTE, other)
    +761
    +762    def __gt__(self, other: ExpOrStr) -> GT:
    +763        return self._binop(GT, other)
    +764
    +765    def __ge__(self, other: ExpOrStr) -> GTE:
    +766        return self._binop(GTE, other)
    +767
    +768    def __add__(self, other: ExpOrStr) -> Add:
    +769        return self._binop(Add, other)
    +770
    +771    def __radd__(self, other: ExpOrStr) -> Add:
    +772        return self._binop(Add, other, reverse=True)
    +773
    +774    def __sub__(self, other: ExpOrStr) -> Sub:
    +775        return self._binop(Sub, other)
    +776
    +777    def __rsub__(self, other: ExpOrStr) -> Sub:
    +778        return self._binop(Sub, other, reverse=True)
    +779
    +780    def __mul__(self, other: ExpOrStr) -> Mul:
    +781        return self._binop(Mul, other)
    +782
    +783    def __rmul__(self, other: ExpOrStr) -> Mul:
    +784        return self._binop(Mul, other, reverse=True)
    +785
    +786    def __truediv__(self, other: ExpOrStr) -> Div:
    +787        return self._binop(Div, other)
    +788
    +789    def __rtruediv__(self, other: ExpOrStr) -> Div:
    +790        return self._binop(Div, other, reverse=True)
    +791
    +792    def __floordiv__(self, other: ExpOrStr) -> IntDiv:
    +793        return self._binop(IntDiv, other)
    +794
    +795    def __rfloordiv__(self, other: ExpOrStr) -> IntDiv:
    +796        return self._binop(IntDiv, other, reverse=True)
    +797
    +798    def __mod__(self, other: ExpOrStr) -> Mod:
    +799        return self._binop(Mod, other)
    +800
    +801    def __rmod__(self, other: ExpOrStr) -> Mod:
    +802        return self._binop(Mod, other, reverse=True)
    +803
    +804    def __pow__(self, other: ExpOrStr) -> Pow:
    +805        return self._binop(Pow, other)
    +806
    +807    def __rpow__(self, other: ExpOrStr) -> Pow:
    +808        return self._binop(Pow, other, reverse=True)
    +809
    +810    def __and__(self, other: ExpOrStr) -> And:
    +811        return self._binop(And, other)
    +812
    +813    def __rand__(self, other: ExpOrStr) -> And:
    +814        return self._binop(And, other, reverse=True)
    +815
    +816    def __or__(self, other: ExpOrStr) -> Or:
    +817        return self._binop(Or, other)
    +818
    +819    def __ror__(self, other: ExpOrStr) -> Or:
    +820        return self._binop(Or, other, reverse=True)
    +821
    +822    def __neg__(self) -> Neg:
    +823        return Neg(this=_wrap(self.copy(), Binary))
    +824
    +825    def __invert__(self) -> Not:
    +826        return not_(self.copy())
     
    @@ -10176,13 +10478,13 @@ to check that the provided arguments don't exceed the function argument limit. def - and_(self, *expressions, dialect=None, **opts): + and_(self, *expressions, dialect=None, copy=True, **opts): -
    654    def and_(self, *expressions, dialect=None, **opts):
    +            
    654    def and_(self, *expressions, dialect=None, copy=True, **opts):
     655        """
     656        AND this condition with one or multiple expressions.
     657
    @@ -10194,12 +10496,13 @@ to check that the provided arguments don't exceed the function argument limit.663            *expressions (str | Expression): the SQL code strings to parse.
     664                If an `Expression` instance is passed, it will be used as-is.
     665            dialect (str): the dialect used to parse the input expression.
    -666            opts (kwargs): other options to use to parse the input expressions.
    -667
    -668        Returns:
    -669            And: the new condition.
    -670        """
    -671        return and_(self, *expressions, dialect=dialect, **opts)
    +666            copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
    +667            opts (kwargs): other options to use to parse the input expressions.
    +668
    +669        Returns:
    +670            And: the new condition.
    +671        """
    +672        return and_(self, *expressions, dialect=dialect, copy=copy, **opts)
     
    @@ -10221,6 +10524,7 @@ to check that the provided arguments don't exceed the function argument limit.*expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, it will be used as-is.
  • dialect (str): the dialect used to parse the input expression.
  • +
  • copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
  • opts (kwargs): other options to use to parse the input expressions.
  • @@ -10238,30 +10542,31 @@ If an Expression instance is passed, it w
    def - or_(self, *expressions, dialect=None, **opts): + or_(self, *expressions, dialect=None, copy=True, **opts):
    -
    673    def or_(self, *expressions, dialect=None, **opts):
    -674        """
    -675        OR this condition with one or multiple expressions.
    -676
    -677        Example:
    -678            >>> condition("x=1").or_("y=1").sql()
    -679            'x = 1 OR y = 1'
    -680
    -681        Args:
    -682            *expressions (str | Expression): the SQL code strings to parse.
    -683                If an `Expression` instance is passed, it will be used as-is.
    -684            dialect (str): the dialect used to parse the input expression.
    -685            opts (kwargs): other options to use to parse the input expressions.
    -686
    -687        Returns:
    -688            Or: the new condition.
    -689        """
    -690        return or_(self, *expressions, dialect=dialect, **opts)
    +            
    674    def or_(self, *expressions, dialect=None, copy=True, **opts):
    +675        """
    +676        OR this condition with one or multiple expressions.
    +677
    +678        Example:
    +679            >>> condition("x=1").or_("y=1").sql()
    +680            'x = 1 OR y = 1'
    +681
    +682        Args:
    +683            *expressions (str | Expression): the SQL code strings to parse.
    +684                If an `Expression` instance is passed, it will be used as-is.
    +685            dialect (str): the dialect used to parse the input expression.
    +686            copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
    +687            opts (kwargs): other options to use to parse the input expressions.
    +688
    +689        Returns:
    +690            Or: the new condition.
    +691        """
    +692        return or_(self, *expressions, dialect=dialect, copy=copy, **opts)
     
    @@ -10283,6 +10588,7 @@ If an Expression instance is passed, it w
  • *expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, it will be used as-is.
  • dialect (str): the dialect used to parse the input expression.
  • +
  • copy (bool): whether or not to copy the involved expressions (only applies to Expressions).
  • opts (kwargs): other options to use to parse the input expressions.
  • @@ -10300,24 +10606,27 @@ If an Expression instance is passed, it w
    def - not_(self): + not_(self, copy=True):
    -
    692    def not_(self):
    -693        """
    -694        Wrap this condition with NOT.
    -695
    -696        Example:
    -697            >>> condition("x=1").not_().sql()
    -698            'NOT x = 1'
    -699
    -700        Returns:
    -701            Not: the new condition.
    -702        """
    -703        return not_(self)
    +            
    694    def not_(self, copy=True):
    +695        """
    +696        Wrap this condition with NOT.
    +697
    +698        Example:
    +699            >>> condition("x=1").not_().sql()
    +700            'NOT x = 1'
    +701
    +702        Args:
    +703            copy (bool): whether or not to copy this object.
    +704
    +705        Returns:
    +706            Not: the new condition.
    +707        """
    +708        return not_(self, copy=copy)
     
    @@ -10333,6 +10642,12 @@ If an Expression instance is passed, it w
    +
    Arguments:
    + +
      +
    • copy (bool): whether or not to copy this object.
    • +
    +
    Returns:
    @@ -10341,6 +10656,149 @@ If an Expression instance is passed, it w
    +
    +
    + +
    + + def + isin( self, *expressions: Any, query: Union[str, sqlglot.expressions.Expression, NoneType] = None, copy=True, **opts) -> sqlglot.expressions.In: + + + +
    + +
    725    def isin(
    +726        self, *expressions: t.Any, query: t.Optional[ExpOrStr] = None, copy=True, **opts
    +727    ) -> In:
    +728        return In(
    +729            this=_maybe_copy(self, copy),
    +730            expressions=[convert(e, copy=copy) for e in expressions],
    +731            query=maybe_parse(query, copy=copy, **opts) if query else None,
    +732        )
    +
    + + + + +
    +
    + +
    + + def + between( self, low: Any, high: Any, copy=True, **opts) -> sqlglot.expressions.Between: + + + +
    + +
    734    def between(self, low: t.Any, high: t.Any, copy=True, **opts) -> Between:
    +735        return Between(
    +736            this=_maybe_copy(self, copy),
    +737            low=convert(low, copy=copy, **opts),
    +738            high=convert(high, copy=copy, **opts),
    +739        )
    +
    + + + + +
    +
    + +
    + + def + like( self, other: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.Like: + + + +
    + +
    741    def like(self, other: ExpOrStr) -> Like:
    +742        return self._binop(Like, other)
    +
    + + + + +
    +
    + +
    + + def + ilike( self, other: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.ILike: + + + +
    + +
    744    def ilike(self, other: ExpOrStr) -> ILike:
    +745        return self._binop(ILike, other)
    +
    + + + + +
    +
    + +
    + + def + eq( self, other: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.EQ: + + + +
    + +
    747    def eq(self, other: ExpOrStr) -> EQ:
    +748        return self._binop(EQ, other)
    +
    + + + + +
    +
    + +
    + + def + neq( self, other: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.NEQ: + + + +
    + +
    750    def neq(self, other: ExpOrStr) -> NEQ:
    +751        return self._binop(NEQ, other)
    +
    + + + + +
    +
    + +
    + + def + rlike( self, other: Union[str, sqlglot.expressions.Expression]) -> sqlglot.expressions.RegexpLike: + + + +
    + +
    753    def rlike(self, other: ExpOrStr) -> RegexpLike:
    +754        return self._binop(RegexpLike, other)
    +
    + + + +
    Inherited Members
    @@ -10399,8 +10857,8 @@ If an Expression instance is passed, it w
    -
    706class Predicate(Condition):
    -707    """Relationships like x = y, x > 1, x >= y."""
    +            
    829class Predicate(Condition):
    +830    """Relationships like x = y, x > 1, x >= y."""
     
    @@ -10455,6 +10913,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -10471,26 +10936,26 @@ If an Expression instance is passed, it w -
    710class DerivedTable(Expression):
    -711    @property
    -712    def alias_column_names(self):
    -713        table_alias = self.args.get("alias")
    -714        if not table_alias:
    -715            return []
    -716        column_list = table_alias.assert_is(TableAlias).args.get("columns") or []
    -717        return [c.name for c in column_list]
    -718
    -719    @property
    -720    def selects(self):
    -721        alias = self.args.get("alias")
    -722
    -723        if alias:
    -724            return alias.columns
    -725        return []
    -726
    -727    @property
    -728    def named_selects(self):
    -729        return [select.output_name for select in self.selects]
    +            
    833class DerivedTable(Expression):
    +834    @property
    +835    def alias_column_names(self):
    +836        table_alias = self.args.get("alias")
    +837        if not table_alias:
    +838            return []
    +839        column_list = table_alias.assert_is(TableAlias).args.get("columns") or []
    +840        return [c.name for c in column_list]
    +841
    +842    @property
    +843    def selects(self):
    +844        alias = self.args.get("alias")
    +845
    +846        if alias:
    +847            return alias.columns
    +848        return []
    +849
    +850    @property
    +851    def named_selects(self):
    +852        return [select.output_name for select in self.selects]
     
    @@ -10553,66 +11018,66 @@ If an Expression instance is passed, it w
    -
    732class Unionable(Expression):
    -733    def union(self, expression, distinct=True, dialect=None, **opts):
    -734        """
    -735        Builds a UNION expression.
    -736
    -737        Example:
    -738            >>> import sqlglot
    -739            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    -740            'SELECT * FROM foo UNION SELECT * FROM bla'
    -741
    -742        Args:
    -743            expression (str | Expression): the SQL code string.
    -744                If an `Expression` instance is passed, it will be used as-is.
    -745            distinct (bool): set the DISTINCT flag if and only if this is true.
    -746            dialect (str): the dialect used to parse the input expression.
    -747            opts (kwargs): other options to use to parse the input expressions.
    -748        Returns:
    -749            Union: the Union expression.
    -750        """
    -751        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    -752
    -753    def intersect(self, expression, distinct=True, dialect=None, **opts):
    -754        """
    -755        Builds an INTERSECT expression.
    -756
    -757        Example:
    -758            >>> import sqlglot
    -759            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    -760            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    -761
    -762        Args:
    -763            expression (str | Expression): the SQL code string.
    -764                If an `Expression` instance is passed, it will be used as-is.
    -765            distinct (bool): set the DISTINCT flag if and only if this is true.
    -766            dialect (str): the dialect used to parse the input expression.
    -767            opts (kwargs): other options to use to parse the input expressions.
    -768        Returns:
    -769            Intersect: the Intersect expression
    -770        """
    -771        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    -772
    -773    def except_(self, expression, distinct=True, dialect=None, **opts):
    -774        """
    -775        Builds an EXCEPT expression.
    -776
    -777        Example:
    -778            >>> import sqlglot
    -779            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    -780            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    -781
    -782        Args:
    -783            expression (str | Expression): the SQL code string.
    -784                If an `Expression` instance is passed, it will be used as-is.
    -785            distinct (bool): set the DISTINCT flag if and only if this is true.
    -786            dialect (str): the dialect used to parse the input expression.
    -787            opts (kwargs): other options to use to parse the input expressions.
    -788        Returns:
    -789            Except: the Except expression
    -790        """
    -791        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +            
    855class Unionable(Expression):
    +856    def union(self, expression, distinct=True, dialect=None, **opts):
    +857        """
    +858        Builds a UNION expression.
    +859
    +860        Example:
    +861            >>> import sqlglot
    +862            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    +863            'SELECT * FROM foo UNION SELECT * FROM bla'
    +864
    +865        Args:
    +866            expression (str | Expression): the SQL code string.
    +867                If an `Expression` instance is passed, it will be used as-is.
    +868            distinct (bool): set the DISTINCT flag if and only if this is true.
    +869            dialect (str): the dialect used to parse the input expression.
    +870            opts (kwargs): other options to use to parse the input expressions.
    +871        Returns:
    +872            Union: the Union expression.
    +873        """
    +874        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +875
    +876    def intersect(self, expression, distinct=True, dialect=None, **opts):
    +877        """
    +878        Builds an INTERSECT expression.
    +879
    +880        Example:
    +881            >>> import sqlglot
    +882            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    +883            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    +884
    +885        Args:
    +886            expression (str | Expression): the SQL code string.
    +887                If an `Expression` instance is passed, it will be used as-is.
    +888            distinct (bool): set the DISTINCT flag if and only if this is true.
    +889            dialect (str): the dialect used to parse the input expression.
    +890            opts (kwargs): other options to use to parse the input expressions.
    +891        Returns:
    +892            Intersect: the Intersect expression
    +893        """
    +894        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +895
    +896    def except_(self, expression, distinct=True, dialect=None, **opts):
    +897        """
    +898        Builds an EXCEPT expression.
    +899
    +900        Example:
    +901            >>> import sqlglot
    +902            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    +903            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    +904
    +905        Args:
    +906            expression (str | Expression): the SQL code string.
    +907                If an `Expression` instance is passed, it will be used as-is.
    +908            distinct (bool): set the DISTINCT flag if and only if this is true.
    +909            dialect (str): the dialect used to parse the input expression.
    +910            opts (kwargs): other options to use to parse the input expressions.
    +911        Returns:
    +912            Except: the Except expression
    +913        """
    +914        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
     
    @@ -10629,25 +11094,25 @@ If an Expression instance is passed, it w
    -
    733    def union(self, expression, distinct=True, dialect=None, **opts):
    -734        """
    -735        Builds a UNION expression.
    -736
    -737        Example:
    -738            >>> import sqlglot
    -739            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    -740            'SELECT * FROM foo UNION SELECT * FROM bla'
    -741
    -742        Args:
    -743            expression (str | Expression): the SQL code string.
    -744                If an `Expression` instance is passed, it will be used as-is.
    -745            distinct (bool): set the DISTINCT flag if and only if this is true.
    -746            dialect (str): the dialect used to parse the input expression.
    -747            opts (kwargs): other options to use to parse the input expressions.
    -748        Returns:
    -749            Union: the Union expression.
    -750        """
    -751        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +            
    856    def union(self, expression, distinct=True, dialect=None, **opts):
    +857        """
    +858        Builds a UNION expression.
    +859
    +860        Example:
    +861            >>> import sqlglot
    +862            >>> sqlglot.parse_one("SELECT * FROM foo").union("SELECT * FROM bla").sql()
    +863            'SELECT * FROM foo UNION SELECT * FROM bla'
    +864
    +865        Args:
    +866            expression (str | Expression): the SQL code string.
    +867                If an `Expression` instance is passed, it will be used as-is.
    +868            distinct (bool): set the DISTINCT flag if and only if this is true.
    +869            dialect (str): the dialect used to parse the input expression.
    +870            opts (kwargs): other options to use to parse the input expressions.
    +871        Returns:
    +872            Union: the Union expression.
    +873        """
    +874        return union(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
     
    @@ -10694,25 +11159,25 @@ If an Expression instance is passed, it w
    -
    753    def intersect(self, expression, distinct=True, dialect=None, **opts):
    -754        """
    -755        Builds an INTERSECT expression.
    -756
    -757        Example:
    -758            >>> import sqlglot
    -759            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    -760            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    -761
    -762        Args:
    -763            expression (str | Expression): the SQL code string.
    -764                If an `Expression` instance is passed, it will be used as-is.
    -765            distinct (bool): set the DISTINCT flag if and only if this is true.
    -766            dialect (str): the dialect used to parse the input expression.
    -767            opts (kwargs): other options to use to parse the input expressions.
    -768        Returns:
    -769            Intersect: the Intersect expression
    -770        """
    -771        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +            
    876    def intersect(self, expression, distinct=True, dialect=None, **opts):
    +877        """
    +878        Builds an INTERSECT expression.
    +879
    +880        Example:
    +881            >>> import sqlglot
    +882            >>> sqlglot.parse_one("SELECT * FROM foo").intersect("SELECT * FROM bla").sql()
    +883            'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    +884
    +885        Args:
    +886            expression (str | Expression): the SQL code string.
    +887                If an `Expression` instance is passed, it will be used as-is.
    +888            distinct (bool): set the DISTINCT flag if and only if this is true.
    +889            dialect (str): the dialect used to parse the input expression.
    +890            opts (kwargs): other options to use to parse the input expressions.
    +891        Returns:
    +892            Intersect: the Intersect expression
    +893        """
    +894        return intersect(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
     
    @@ -10759,25 +11224,25 @@ If an Expression instance is passed, it w
    -
    773    def except_(self, expression, distinct=True, dialect=None, **opts):
    -774        """
    -775        Builds an EXCEPT expression.
    -776
    -777        Example:
    -778            >>> import sqlglot
    -779            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    -780            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    -781
    -782        Args:
    -783            expression (str | Expression): the SQL code string.
    -784                If an `Expression` instance is passed, it will be used as-is.
    -785            distinct (bool): set the DISTINCT flag if and only if this is true.
    -786            dialect (str): the dialect used to parse the input expression.
    -787            opts (kwargs): other options to use to parse the input expressions.
    -788        Returns:
    -789            Except: the Except expression
    -790        """
    -791        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
    +            
    896    def except_(self, expression, distinct=True, dialect=None, **opts):
    +897        """
    +898        Builds an EXCEPT expression.
    +899
    +900        Example:
    +901            >>> import sqlglot
    +902            >>> sqlglot.parse_one("SELECT * FROM foo").except_("SELECT * FROM bla").sql()
    +903            'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    +904
    +905        Args:
    +906            expression (str | Expression): the SQL code string.
    +907                If an `Expression` instance is passed, it will be used as-is.
    +908            distinct (bool): set the DISTINCT flag if and only if this is true.
    +909            dialect (str): the dialect used to parse the input expression.
    +910            opts (kwargs): other options to use to parse the input expressions.
    +911        Returns:
    +912            Except: the Except expression
    +913        """
    +914        return except_(left=self, right=expression, distinct=distinct, dialect=dialect, **opts)
     
    @@ -10870,8 +11335,8 @@ If an Expression instance is passed, it w
    -
    794class UDTF(DerivedTable, Unionable):
    -795    pass
    +            
    917class UDTF(DerivedTable, Unionable):
    +918    pass
     
    @@ -10940,14 +11405,14 @@ If an Expression instance is passed, it w
    -
    798class Cache(Expression):
    -799    arg_types = {
    -800        "with": False,
    -801        "this": True,
    -802        "lazy": False,
    -803        "options": False,
    -804        "expression": False,
    -805    }
    +            
    921class Cache(Expression):
    +922    arg_types = {
    +923        "with": False,
    +924        "this": True,
    +925        "lazy": False,
    +926        "options": False,
    +927        "expression": False,
    +928    }
     
    @@ -11010,8 +11475,8 @@ If an Expression instance is passed, it w
    -
    808class Uncache(Expression):
    -809    arg_types = {"this": True, "exists": False}
    +            
    931class Uncache(Expression):
    +932    arg_types = {"this": True, "exists": False}
     
    @@ -11074,20 +11539,20 @@ If an Expression instance is passed, it w
    -
    812class Create(Expression):
    -813    arg_types = {
    -814        "with": False,
    -815        "this": True,
    -816        "kind": True,
    -817        "expression": False,
    -818        "exists": False,
    -819        "properties": False,
    -820        "replace": False,
    -821        "unique": False,
    -822        "indexes": False,
    -823        "no_schema_binding": False,
    -824        "begin": False,
    -825    }
    +            
    935class Create(Expression):
    +936    arg_types = {
    +937        "with": False,
    +938        "this": True,
    +939        "kind": True,
    +940        "expression": False,
    +941        "exists": False,
    +942        "properties": False,
    +943        "replace": False,
    +944        "unique": False,
    +945        "indexes": False,
    +946        "no_schema_binding": False,
    +947        "begin": False,
    +948    }
     
    @@ -11150,8 +11615,8 @@ If an Expression instance is passed, it w
    -
    828class Describe(Expression):
    -829    arg_types = {"this": True, "kind": False}
    +            
    951class Describe(Expression):
    +952    arg_types = {"this": True, "kind": False}
     
    @@ -11214,8 +11679,8 @@ If an Expression instance is passed, it w
    -
    832class Pragma(Expression):
    -833    pass
    +            
    955class Pragma(Expression):
    +956    pass
     
    @@ -11278,8 +11743,8 @@ If an Expression instance is passed, it w
    -
    836class Set(Expression):
    -837    arg_types = {"expressions": False}
    +            
    959class Set(Expression):
    +960    arg_types = {"expressions": False}
     
    @@ -11342,14 +11807,14 @@ If an Expression instance is passed, it w
    -
    840class SetItem(Expression):
    -841    arg_types = {
    -842        "this": False,
    -843        "expressions": False,
    -844        "kind": False,
    -845        "collate": False,  # MySQL SET NAMES statement
    -846        "global": False,
    -847    }
    +            
    963class SetItem(Expression):
    +964    arg_types = {
    +965        "this": False,
    +966        "expressions": False,
    +967        "kind": False,
    +968        "collate": False,  # MySQL SET NAMES statement
    +969        "global": False,
    +970    }
     
    @@ -11412,24 +11877,24 @@ If an Expression instance is passed, it w
    -
    850class Show(Expression):
    -851    arg_types = {
    -852        "this": True,
    -853        "target": False,
    -854        "offset": False,
    -855        "limit": False,
    -856        "like": False,
    -857        "where": False,
    -858        "db": False,
    -859        "full": False,
    -860        "mutex": False,
    -861        "query": False,
    -862        "channel": False,
    -863        "global": False,
    -864        "log": False,
    -865        "position": False,
    -866        "types": False,
    -867    }
    +            
    973class Show(Expression):
    +974    arg_types = {
    +975        "this": True,
    +976        "target": False,
    +977        "offset": False,
    +978        "limit": False,
    +979        "like": False,
    +980        "where": False,
    +981        "db": False,
    +982        "full": False,
    +983        "mutex": False,
    +984        "query": False,
    +985        "channel": False,
    +986        "global": False,
    +987        "log": False,
    +988        "position": False,
    +989        "types": False,
    +990    }
     
    @@ -11492,8 +11957,8 @@ If an Expression instance is passed, it w
    -
    870class UserDefinedFunction(Expression):
    -871    arg_types = {"this": True, "expressions": False, "wrapped": False}
    +            
    993class UserDefinedFunction(Expression):
    +994    arg_types = {"this": True, "expressions": False, "wrapped": False}
     
    @@ -11556,8 +12021,8 @@ If an Expression instance is passed, it w
    -
    874class CharacterSet(Expression):
    -875    arg_types = {"this": True, "default": False}
    +            
    997class CharacterSet(Expression):
    +998    arg_types = {"this": True, "default": False}
     
    @@ -11620,12 +12085,12 @@ If an Expression instance is passed, it w
    -
    878class With(Expression):
    -879    arg_types = {"expressions": True, "recursive": False}
    -880
    -881    @property
    -882    def recursive(self) -> bool:
    -883        return bool(self.args.get("recursive"))
    +            
    1001class With(Expression):
    +1002    arg_types = {"expressions": True, "recursive": False}
    +1003
    +1004    @property
    +1005    def recursive(self) -> bool:
    +1006        return bool(self.args.get("recursive"))
     
    @@ -11688,8 +12153,8 @@ If an Expression instance is passed, it w
    -
    886class WithinGroup(Expression):
    -887    arg_types = {"this": True, "expression": False}
    +            
    1009class WithinGroup(Expression):
    +1010    arg_types = {"this": True, "expression": False}
     
    @@ -11752,8 +12217,8 @@ If an Expression instance is passed, it w
    -
    890class CTE(DerivedTable):
    -891    arg_types = {"this": True, "alias": True}
    +            
    1013class CTE(DerivedTable):
    +1014    arg_types = {"this": True, "alias": True}
     
    @@ -11816,12 +12281,12 @@ If an Expression instance is passed, it w
    -
    894class TableAlias(Expression):
    -895    arg_types = {"this": False, "columns": False}
    -896
    -897    @property
    -898    def columns(self):
    -899        return self.args.get("columns") or []
    +            
    1017class TableAlias(Expression):
    +1018    arg_types = {"this": False, "columns": False}
    +1019
    +1020    @property
    +1021    def columns(self):
    +1022        return self.args.get("columns") or []
     
    @@ -11884,8 +12349,8 @@ If an Expression instance is passed, it w
    -
    902class BitString(Condition):
    -903    pass
    +            
    1025class BitString(Condition):
    +1026    pass
     
    @@ -11938,6 +12403,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -11954,8 +12426,8 @@ If an Expression instance is passed, it w -
    906class HexString(Condition):
    -907    pass
    +            
    1029class HexString(Condition):
    +1030    pass
     
    @@ -12008,6 +12480,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -12024,8 +12503,8 @@ If an Expression instance is passed, it w -
    910class ByteString(Condition):
    -911    pass
    +            
    1033class ByteString(Condition):
    +1034    pass
     
    @@ -12078,6 +12557,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -12094,41 +12580,41 @@ If an Expression instance is passed, it w -
    914class Column(Condition):
    -915    arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False}
    -916
    -917    @property
    -918    def table(self) -> str:
    -919        return self.text("table")
    -920
    -921    @property
    -922    def db(self) -> str:
    -923        return self.text("db")
    -924
    -925    @property
    -926    def catalog(self) -> str:
    -927        return self.text("catalog")
    -928
    -929    @property
    -930    def output_name(self) -> str:
    -931        return self.name
    -932
    -933    @property
    -934    def parts(self) -> t.List[Identifier]:
    -935        """Return the parts of a column in order catalog, db, table, name."""
    -936        return [part for part in reversed(list(self.args.values())) if part]
    -937
    -938    def to_dot(self) -> Dot:
    -939        """Converts the column into a dot expression."""
    -940        parts = self.parts
    -941        parent = self.parent
    -942
    -943        while parent:
    -944            if isinstance(parent, Dot):
    -945                parts.append(parent.expression)
    -946            parent = parent.parent
    -947
    -948        return Dot.build(parts)
    +            
    1037class Column(Condition):
    +1038    arg_types = {"this": True, "table": False, "db": False, "catalog": False, "join_mark": False}
    +1039
    +1040    @property
    +1041    def table(self) -> str:
    +1042        return self.text("table")
    +1043
    +1044    @property
    +1045    def db(self) -> str:
    +1046        return self.text("db")
    +1047
    +1048    @property
    +1049    def catalog(self) -> str:
    +1050        return self.text("catalog")
    +1051
    +1052    @property
    +1053    def output_name(self) -> str:
    +1054        return self.name
    +1055
    +1056    @property
    +1057    def parts(self) -> t.List[Identifier]:
    +1058        """Return the parts of a column in order catalog, db, table, name."""
    +1059        return [part for part in reversed(list(self.args.values())) if part]
    +1060
    +1061    def to_dot(self) -> Dot:
    +1062        """Converts the column into a dot expression."""
    +1063        parts = self.parts
    +1064        parent = self.parent
    +1065
    +1066        while parent:
    +1067            if isinstance(parent, Dot):
    +1068                parts.append(parent.expression)
    +1069            parent = parent.parent
    +1070
    +1071        return Dot.build(parts)
     
    @@ -12188,17 +12674,17 @@ If an Expression instance is passed, it w
    -
    938    def to_dot(self) -> Dot:
    -939        """Converts the column into a dot expression."""
    -940        parts = self.parts
    -941        parent = self.parent
    -942
    -943        while parent:
    -944            if isinstance(parent, Dot):
    -945                parts.append(parent.expression)
    -946            parent = parent.parent
    -947
    -948        return Dot.build(parts)
    +            
    1061    def to_dot(self) -> Dot:
    +1062        """Converts the column into a dot expression."""
    +1063        parts = self.parts
    +1064        parent = self.parent
    +1065
    +1066        while parent:
    +1067            if isinstance(parent, Dot):
    +1068                parts.append(parent.expression)
    +1069            parent = parent.parent
    +1070
    +1071        return Dot.build(parts)
     
    @@ -12253,6 +12739,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -12269,8 +12762,8 @@ If an Expression instance is passed, it w -
    951class ColumnPosition(Expression):
    -952    arg_types = {"this": False, "position": True}
    +            
    1074class ColumnPosition(Expression):
    +1075    arg_types = {"this": False, "position": True}
     
    @@ -12333,14 +12826,14 @@ If an Expression instance is passed, it w
    -
    955class ColumnDef(Expression):
    -956    arg_types = {
    -957        "this": True,
    -958        "kind": False,
    -959        "constraints": False,
    -960        "exists": False,
    -961        "position": False,
    -962    }
    +            
    1078class ColumnDef(Expression):
    +1079    arg_types = {
    +1080        "this": True,
    +1081        "kind": False,
    +1082        "constraints": False,
    +1083        "exists": False,
    +1084        "position": False,
    +1085    }
     
    @@ -12403,15 +12896,15 @@ If an Expression instance is passed, it w
    -
    965class AlterColumn(Expression):
    -966    arg_types = {
    -967        "this": True,
    -968        "dtype": False,
    -969        "collate": False,
    -970        "using": False,
    -971        "default": False,
    -972        "drop": False,
    -973    }
    +            
    1088class AlterColumn(Expression):
    +1089    arg_types = {
    +1090        "this": True,
    +1091        "dtype": False,
    +1092        "collate": False,
    +1093        "using": False,
    +1094        "default": False,
    +1095        "drop": False,
    +1096    }
     
    @@ -12474,8 +12967,8 @@ If an Expression instance is passed, it w
    -
    976class RenameTable(Expression):
    -977    pass
    +            
    1099class RenameTable(Expression):
    +1100    pass
     
    @@ -12538,8 +13031,8 @@ If an Expression instance is passed, it w
    -
    980class SetTag(Expression):
    -981    arg_types = {"expressions": True, "unset": False}
    +            
    1103class SetTag(Expression):
    +1104    arg_types = {"expressions": True, "unset": False}
     
    @@ -12602,8 +13095,8 @@ If an Expression instance is passed, it w
    -
    984class Comment(Expression):
    -985    arg_types = {"this": True, "kind": True, "expression": True, "exists": False}
    +            
    1107class Comment(Expression):
    +1108    arg_types = {"this": True, "kind": True, "expression": True, "exists": False}
     
    @@ -12666,8 +13159,8 @@ If an Expression instance is passed, it w
    -
    988class ColumnConstraint(Expression):
    -989    arg_types = {"this": False, "kind": True}
    +            
    1111class ColumnConstraint(Expression):
    +1112    arg_types = {"this": False, "kind": True}
     
    @@ -12730,8 +13223,8 @@ If an Expression instance is passed, it w
    -
    992class ColumnConstraintKind(Expression):
    -993    pass
    +            
    1115class ColumnConstraintKind(Expression):
    +1116    pass
     
    @@ -12794,8 +13287,8 @@ If an Expression instance is passed, it w
    -
    996class AutoIncrementColumnConstraint(ColumnConstraintKind):
    -997    pass
    +            
    1119class AutoIncrementColumnConstraint(ColumnConstraintKind):
    +1120    pass
     
    @@ -12858,8 +13351,8 @@ If an Expression instance is passed, it w
    -
    1000class CaseSpecificColumnConstraint(ColumnConstraintKind):
    -1001    arg_types = {"not_": True}
    +            
    1123class CaseSpecificColumnConstraint(ColumnConstraintKind):
    +1124    arg_types = {"not_": True}
     
    @@ -12922,8 +13415,8 @@ If an Expression instance is passed, it w
    -
    1004class CharacterSetColumnConstraint(ColumnConstraintKind):
    -1005    arg_types = {"this": True}
    +            
    1127class CharacterSetColumnConstraint(ColumnConstraintKind):
    +1128    arg_types = {"this": True}
     
    @@ -12986,8 +13479,8 @@ If an Expression instance is passed, it w
    -
    1008class CheckColumnConstraint(ColumnConstraintKind):
    -1009    pass
    +            
    1131class CheckColumnConstraint(ColumnConstraintKind):
    +1132    pass
     
    @@ -13050,8 +13543,8 @@ If an Expression instance is passed, it w
    -
    1012class CollateColumnConstraint(ColumnConstraintKind):
    -1013    pass
    +            
    1135class CollateColumnConstraint(ColumnConstraintKind):
    +1136    pass
     
    @@ -13114,8 +13607,8 @@ If an Expression instance is passed, it w
    -
    1016class CommentColumnConstraint(ColumnConstraintKind):
    -1017    pass
    +            
    1139class CommentColumnConstraint(ColumnConstraintKind):
    +1140    pass
     
    @@ -13178,8 +13671,8 @@ If an Expression instance is passed, it w
    -
    1020class CompressColumnConstraint(ColumnConstraintKind):
    -1021    pass
    +            
    1143class CompressColumnConstraint(ColumnConstraintKind):
    +1144    pass
     
    @@ -13242,8 +13735,8 @@ If an Expression instance is passed, it w
    -
    1024class DateFormatColumnConstraint(ColumnConstraintKind):
    -1025    arg_types = {"this": True}
    +            
    1147class DateFormatColumnConstraint(ColumnConstraintKind):
    +1148    arg_types = {"this": True}
     
    @@ -13306,8 +13799,8 @@ If an Expression instance is passed, it w
    -
    1028class DefaultColumnConstraint(ColumnConstraintKind):
    -1029    pass
    +            
    1151class DefaultColumnConstraint(ColumnConstraintKind):
    +1152    pass
     
    @@ -13370,8 +13863,8 @@ If an Expression instance is passed, it w
    -
    1032class EncodeColumnConstraint(ColumnConstraintKind):
    -1033    pass
    +            
    1155class EncodeColumnConstraint(ColumnConstraintKind):
    +1156    pass
     
    @@ -13434,16 +13927,16 @@ If an Expression instance is passed, it w
    -
    1036class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    -1037    # this: True -> ALWAYS, this: False -> BY DEFAULT
    -1038    arg_types = {
    -1039        "this": False,
    -1040        "start": False,
    -1041        "increment": False,
    -1042        "minvalue": False,
    -1043        "maxvalue": False,
    -1044        "cycle": False,
    -1045    }
    +            
    1159class GeneratedAsIdentityColumnConstraint(ColumnConstraintKind):
    +1160    # this: True -> ALWAYS, this: False -> BY DEFAULT
    +1161    arg_types = {
    +1162        "this": False,
    +1163        "start": False,
    +1164        "increment": False,
    +1165        "minvalue": False,
    +1166        "maxvalue": False,
    +1167        "cycle": False,
    +1168    }
     
    @@ -13506,8 +13999,8 @@ If an Expression instance is passed, it w
    -
    1048class InlineLengthColumnConstraint(ColumnConstraintKind):
    -1049    pass
    +            
    1171class InlineLengthColumnConstraint(ColumnConstraintKind):
    +1172    pass
     
    @@ -13570,8 +14063,8 @@ If an Expression instance is passed, it w
    -
    1052class NotNullColumnConstraint(ColumnConstraintKind):
    -1053    arg_types = {"allow_null": False}
    +            
    1175class NotNullColumnConstraint(ColumnConstraintKind):
    +1176    arg_types = {"allow_null": False}
     
    @@ -13634,8 +14127,8 @@ If an Expression instance is passed, it w
    -
    1057class OnUpdateColumnConstraint(ColumnConstraintKind):
    -1058    pass
    +            
    1180class OnUpdateColumnConstraint(ColumnConstraintKind):
    +1181    pass
     
    @@ -13698,8 +14191,8 @@ If an Expression instance is passed, it w
    -
    1061class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    -1062    arg_types = {"desc": False}
    +            
    1184class PrimaryKeyColumnConstraint(ColumnConstraintKind):
    +1185    arg_types = {"desc": False}
     
    @@ -13762,8 +14255,8 @@ If an Expression instance is passed, it w
    -
    1065class TitleColumnConstraint(ColumnConstraintKind):
    -1066    pass
    +            
    1188class TitleColumnConstraint(ColumnConstraintKind):
    +1189    pass
     
    @@ -13826,8 +14319,8 @@ If an Expression instance is passed, it w
    -
    1069class UniqueColumnConstraint(ColumnConstraintKind):
    -1070    arg_types: t.Dict[str, t.Any] = {}
    +            
    1192class UniqueColumnConstraint(ColumnConstraintKind):
    +1193    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -13890,8 +14383,8 @@ If an Expression instance is passed, it w
    -
    1073class UppercaseColumnConstraint(ColumnConstraintKind):
    -1074    arg_types: t.Dict[str, t.Any] = {}
    +            
    1196class UppercaseColumnConstraint(ColumnConstraintKind):
    +1197    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -13954,8 +14447,8 @@ If an Expression instance is passed, it w
    -
    1077class PathColumnConstraint(ColumnConstraintKind):
    -1078    pass
    +            
    1200class PathColumnConstraint(ColumnConstraintKind):
    +1201    pass
     
    @@ -14018,8 +14511,8 @@ If an Expression instance is passed, it w
    -
    1081class Constraint(Expression):
    -1082    arg_types = {"this": True, "expressions": True}
    +            
    1204class Constraint(Expression):
    +1205    arg_types = {"this": True, "expressions": True}
     
    @@ -14082,115 +14575,115 @@ If an Expression instance is passed, it w
    -
    1085class Delete(Expression):
    -1086    arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False}
    -1087
    -1088    def delete(
    -1089        self,
    -1090        table: ExpOrStr,
    -1091        dialect: DialectType = None,
    -1092        copy: bool = True,
    -1093        **opts,
    -1094    ) -> Delete:
    -1095        """
    -1096        Create a DELETE expression or replace the table on an existing DELETE expression.
    -1097
    -1098        Example:
    -1099            >>> delete("tbl").sql()
    -1100            'DELETE FROM tbl'
    -1101
    -1102        Args:
    -1103            table: the table from which to delete.
    -1104            dialect: the dialect used to parse the input expression.
    -1105            copy: if `False`, modify this expression instance in-place.
    -1106            opts: other options to use to parse the input expressions.
    -1107
    -1108        Returns:
    -1109            Delete: the modified expression.
    -1110        """
    -1111        return _apply_builder(
    -1112            expression=table,
    -1113            instance=self,
    -1114            arg="this",
    -1115            dialect=dialect,
    -1116            into=Table,
    -1117            copy=copy,
    -1118            **opts,
    -1119        )
    -1120
    -1121    def where(
    -1122        self,
    -1123        *expressions: ExpOrStr,
    -1124        append: bool = True,
    -1125        dialect: DialectType = None,
    -1126        copy: bool = True,
    -1127        **opts,
    -1128    ) -> Delete:
    -1129        """
    -1130        Append to or set the WHERE expressions.
    -1131
    -1132        Example:
    -1133            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    -1134            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    -1135
    -1136        Args:
    -1137            *expressions: the SQL code strings to parse.
    -1138                If an `Expression` instance is passed, it will be used as-is.
    -1139                Multiple expressions are combined with an AND operator.
    -1140            append: if `True`, AND the new expressions to any existing expression.
    -1141                Otherwise, this resets the expression.
    -1142            dialect: the dialect used to parse the input expressions.
    -1143            copy: if `False`, modify this expression instance in-place.
    -1144            opts: other options to use to parse the input expressions.
    -1145
    -1146        Returns:
    -1147            Delete: the modified expression.
    -1148        """
    -1149        return _apply_conjunction_builder(
    -1150            *expressions,
    -1151            instance=self,
    -1152            arg="where",
    -1153            append=append,
    -1154            into=Where,
    -1155            dialect=dialect,
    -1156            copy=copy,
    -1157            **opts,
    -1158        )
    -1159
    -1160    def returning(
    -1161        self,
    -1162        expression: ExpOrStr,
    -1163        dialect: DialectType = None,
    -1164        copy: bool = True,
    -1165        **opts,
    -1166    ) -> Delete:
    -1167        """
    -1168        Set the RETURNING expression. Not supported by all dialects.
    -1169
    -1170        Example:
    -1171            >>> delete("tbl").returning("*", dialect="postgres").sql()
    -1172            'DELETE FROM tbl RETURNING *'
    -1173
    -1174        Args:
    -1175            expression: the SQL code strings to parse.
    -1176                If an `Expression` instance is passed, it will be used as-is.
    -1177            dialect: the dialect used to parse the input expressions.
    -1178            copy: if `False`, modify this expression instance in-place.
    -1179            opts: other options to use to parse the input expressions.
    -1180
    -1181        Returns:
    -1182            Delete: the modified expression.
    -1183        """
    -1184        return _apply_builder(
    -1185            expression=expression,
    -1186            instance=self,
    -1187            arg="returning",
    -1188            prefix="RETURNING",
    -1189            dialect=dialect,
    -1190            copy=copy,
    -1191            into=Returning,
    -1192            **opts,
    -1193        )
    +            
    1208class Delete(Expression):
    +1209    arg_types = {"with": False, "this": False, "using": False, "where": False, "returning": False}
    +1210
    +1211    def delete(
    +1212        self,
    +1213        table: ExpOrStr,
    +1214        dialect: DialectType = None,
    +1215        copy: bool = True,
    +1216        **opts,
    +1217    ) -> Delete:
    +1218        """
    +1219        Create a DELETE expression or replace the table on an existing DELETE expression.
    +1220
    +1221        Example:
    +1222            >>> delete("tbl").sql()
    +1223            'DELETE FROM tbl'
    +1224
    +1225        Args:
    +1226            table: the table from which to delete.
    +1227            dialect: the dialect used to parse the input expression.
    +1228            copy: if `False`, modify this expression instance in-place.
    +1229            opts: other options to use to parse the input expressions.
    +1230
    +1231        Returns:
    +1232            Delete: the modified expression.
    +1233        """
    +1234        return _apply_builder(
    +1235            expression=table,
    +1236            instance=self,
    +1237            arg="this",
    +1238            dialect=dialect,
    +1239            into=Table,
    +1240            copy=copy,
    +1241            **opts,
    +1242        )
    +1243
    +1244    def where(
    +1245        self,
    +1246        *expressions: ExpOrStr,
    +1247        append: bool = True,
    +1248        dialect: DialectType = None,
    +1249        copy: bool = True,
    +1250        **opts,
    +1251    ) -> Delete:
    +1252        """
    +1253        Append to or set the WHERE expressions.
    +1254
    +1255        Example:
    +1256            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    +1257            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    +1258
    +1259        Args:
    +1260            *expressions: the SQL code strings to parse.
    +1261                If an `Expression` instance is passed, it will be used as-is.
    +1262                Multiple expressions are combined with an AND operator.
    +1263            append: if `True`, AND the new expressions to any existing expression.
    +1264                Otherwise, this resets the expression.
    +1265            dialect: the dialect used to parse the input expressions.
    +1266            copy: if `False`, modify this expression instance in-place.
    +1267            opts: other options to use to parse the input expressions.
    +1268
    +1269        Returns:
    +1270            Delete: the modified expression.
    +1271        """
    +1272        return _apply_conjunction_builder(
    +1273            *expressions,
    +1274            instance=self,
    +1275            arg="where",
    +1276            append=append,
    +1277            into=Where,
    +1278            dialect=dialect,
    +1279            copy=copy,
    +1280            **opts,
    +1281        )
    +1282
    +1283    def returning(
    +1284        self,
    +1285        expression: ExpOrStr,
    +1286        dialect: DialectType = None,
    +1287        copy: bool = True,
    +1288        **opts,
    +1289    ) -> Delete:
    +1290        """
    +1291        Set the RETURNING expression. Not supported by all dialects.
    +1292
    +1293        Example:
    +1294            >>> delete("tbl").returning("*", dialect="postgres").sql()
    +1295            'DELETE FROM tbl RETURNING *'
    +1296
    +1297        Args:
    +1298            expression: the SQL code strings to parse.
    +1299                If an `Expression` instance is passed, it will be used as-is.
    +1300            dialect: the dialect used to parse the input expressions.
    +1301            copy: if `False`, modify this expression instance in-place.
    +1302            opts: other options to use to parse the input expressions.
    +1303
    +1304        Returns:
    +1305            Delete: the modified expression.
    +1306        """
    +1307        return _apply_builder(
    +1308            expression=expression,
    +1309            instance=self,
    +1310            arg="returning",
    +1311            prefix="RETURNING",
    +1312            dialect=dialect,
    +1313            copy=copy,
    +1314            into=Returning,
    +1315            **opts,
    +1316        )
     
    @@ -14207,38 +14700,38 @@ If an Expression instance is passed, it w
    -
    1088    def delete(
    -1089        self,
    -1090        table: ExpOrStr,
    -1091        dialect: DialectType = None,
    -1092        copy: bool = True,
    -1093        **opts,
    -1094    ) -> Delete:
    -1095        """
    -1096        Create a DELETE expression or replace the table on an existing DELETE expression.
    -1097
    -1098        Example:
    -1099            >>> delete("tbl").sql()
    -1100            'DELETE FROM tbl'
    -1101
    -1102        Args:
    -1103            table: the table from which to delete.
    -1104            dialect: the dialect used to parse the input expression.
    -1105            copy: if `False`, modify this expression instance in-place.
    -1106            opts: other options to use to parse the input expressions.
    -1107
    -1108        Returns:
    -1109            Delete: the modified expression.
    -1110        """
    -1111        return _apply_builder(
    -1112            expression=table,
    -1113            instance=self,
    -1114            arg="this",
    -1115            dialect=dialect,
    -1116            into=Table,
    -1117            copy=copy,
    -1118            **opts,
    -1119        )
    +            
    1211    def delete(
    +1212        self,
    +1213        table: ExpOrStr,
    +1214        dialect: DialectType = None,
    +1215        copy: bool = True,
    +1216        **opts,
    +1217    ) -> Delete:
    +1218        """
    +1219        Create a DELETE expression or replace the table on an existing DELETE expression.
    +1220
    +1221        Example:
    +1222            >>> delete("tbl").sql()
    +1223            'DELETE FROM tbl'
    +1224
    +1225        Args:
    +1226            table: the table from which to delete.
    +1227            dialect: the dialect used to parse the input expression.
    +1228            copy: if `False`, modify this expression instance in-place.
    +1229            opts: other options to use to parse the input expressions.
    +1230
    +1231        Returns:
    +1232            Delete: the modified expression.
    +1233        """
    +1234        return _apply_builder(
    +1235            expression=table,
    +1236            instance=self,
    +1237            arg="this",
    +1238            dialect=dialect,
    +1239            into=Table,
    +1240            copy=copy,
    +1241            **opts,
    +1242        )
     
    @@ -14283,44 +14776,44 @@ If an Expression instance is passed, it w
    -
    1121    def where(
    -1122        self,
    -1123        *expressions: ExpOrStr,
    -1124        append: bool = True,
    -1125        dialect: DialectType = None,
    -1126        copy: bool = True,
    -1127        **opts,
    -1128    ) -> Delete:
    -1129        """
    -1130        Append to or set the WHERE expressions.
    -1131
    -1132        Example:
    -1133            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    -1134            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    -1135
    -1136        Args:
    -1137            *expressions: the SQL code strings to parse.
    -1138                If an `Expression` instance is passed, it will be used as-is.
    -1139                Multiple expressions are combined with an AND operator.
    -1140            append: if `True`, AND the new expressions to any existing expression.
    -1141                Otherwise, this resets the expression.
    -1142            dialect: the dialect used to parse the input expressions.
    -1143            copy: if `False`, modify this expression instance in-place.
    -1144            opts: other options to use to parse the input expressions.
    -1145
    -1146        Returns:
    -1147            Delete: the modified expression.
    -1148        """
    -1149        return _apply_conjunction_builder(
    -1150            *expressions,
    -1151            instance=self,
    -1152            arg="where",
    -1153            append=append,
    -1154            into=Where,
    -1155            dialect=dialect,
    -1156            copy=copy,
    -1157            **opts,
    -1158        )
    +            
    1244    def where(
    +1245        self,
    +1246        *expressions: ExpOrStr,
    +1247        append: bool = True,
    +1248        dialect: DialectType = None,
    +1249        copy: bool = True,
    +1250        **opts,
    +1251    ) -> Delete:
    +1252        """
    +1253        Append to or set the WHERE expressions.
    +1254
    +1255        Example:
    +1256            >>> delete("tbl").where("x = 'a' OR x < 'b'").sql()
    +1257            "DELETE FROM tbl WHERE x = 'a' OR x < 'b'"
    +1258
    +1259        Args:
    +1260            *expressions: the SQL code strings to parse.
    +1261                If an `Expression` instance is passed, it will be used as-is.
    +1262                Multiple expressions are combined with an AND operator.
    +1263            append: if `True`, AND the new expressions to any existing expression.
    +1264                Otherwise, this resets the expression.
    +1265            dialect: the dialect used to parse the input expressions.
    +1266            copy: if `False`, modify this expression instance in-place.
    +1267            opts: other options to use to parse the input expressions.
    +1268
    +1269        Returns:
    +1270            Delete: the modified expression.
    +1271        """
    +1272        return _apply_conjunction_builder(
    +1273            *expressions,
    +1274            instance=self,
    +1275            arg="where",
    +1276            append=append,
    +1277            into=Where,
    +1278            dialect=dialect,
    +1279            copy=copy,
    +1280            **opts,
    +1281        )
     
    @@ -14369,40 +14862,40 @@ Otherwise, this resets the expression.
    -
    1160    def returning(
    -1161        self,
    -1162        expression: ExpOrStr,
    -1163        dialect: DialectType = None,
    -1164        copy: bool = True,
    -1165        **opts,
    -1166    ) -> Delete:
    -1167        """
    -1168        Set the RETURNING expression. Not supported by all dialects.
    -1169
    -1170        Example:
    -1171            >>> delete("tbl").returning("*", dialect="postgres").sql()
    -1172            'DELETE FROM tbl RETURNING *'
    -1173
    -1174        Args:
    -1175            expression: the SQL code strings to parse.
    -1176                If an `Expression` instance is passed, it will be used as-is.
    -1177            dialect: the dialect used to parse the input expressions.
    -1178            copy: if `False`, modify this expression instance in-place.
    -1179            opts: other options to use to parse the input expressions.
    -1180
    -1181        Returns:
    -1182            Delete: the modified expression.
    -1183        """
    -1184        return _apply_builder(
    -1185            expression=expression,
    -1186            instance=self,
    -1187            arg="returning",
    -1188            prefix="RETURNING",
    -1189            dialect=dialect,
    -1190            copy=copy,
    -1191            into=Returning,
    -1192            **opts,
    -1193        )
    +            
    1283    def returning(
    +1284        self,
    +1285        expression: ExpOrStr,
    +1286        dialect: DialectType = None,
    +1287        copy: bool = True,
    +1288        **opts,
    +1289    ) -> Delete:
    +1290        """
    +1291        Set the RETURNING expression. Not supported by all dialects.
    +1292
    +1293        Example:
    +1294            >>> delete("tbl").returning("*", dialect="postgres").sql()
    +1295            'DELETE FROM tbl RETURNING *'
    +1296
    +1297        Args:
    +1298            expression: the SQL code strings to parse.
    +1299                If an `Expression` instance is passed, it will be used as-is.
    +1300            dialect: the dialect used to parse the input expressions.
    +1301            copy: if `False`, modify this expression instance in-place.
    +1302            opts: other options to use to parse the input expressions.
    +1303
    +1304        Returns:
    +1305            Delete: the modified expression.
    +1306        """
    +1307        return _apply_builder(
    +1308            expression=expression,
    +1309            instance=self,
    +1310            arg="returning",
    +1311            prefix="RETURNING",
    +1312            dialect=dialect,
    +1313            copy=copy,
    +1314            into=Returning,
    +1315            **opts,
    +1316        )
     
    @@ -14494,17 +14987,17 @@ If an Expression instance is passed, it w
    -
    1196class Drop(Expression):
    -1197    arg_types = {
    -1198        "this": False,
    -1199        "kind": False,
    -1200        "exists": False,
    -1201        "temporary": False,
    -1202        "materialized": False,
    -1203        "cascade": False,
    -1204        "constraints": False,
    -1205        "purge": False,
    -1206    }
    +            
    1319class Drop(Expression):
    +1320    arg_types = {
    +1321        "this": False,
    +1322        "kind": False,
    +1323        "exists": False,
    +1324        "temporary": False,
    +1325        "materialized": False,
    +1326        "cascade": False,
    +1327        "constraints": False,
    +1328        "purge": False,
    +1329    }
     
    @@ -14567,8 +15060,8 @@ If an Expression instance is passed, it w
    -
    1209class Filter(Expression):
    -1210    arg_types = {"this": True, "expression": True}
    +            
    1332class Filter(Expression):
    +1333    arg_types = {"this": True, "expression": True}
     
    @@ -14631,8 +15124,8 @@ If an Expression instance is passed, it w
    -
    1213class Check(Expression):
    -1214    pass
    +            
    1336class Check(Expression):
    +1337    pass
     
    @@ -14695,9 +15188,9 @@ If an Expression instance is passed, it w
    -
    1217class Directory(Expression):
    -1218    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    -1219    arg_types = {"this": True, "local": False, "row_format": False}
    +            
    1340class Directory(Expression):
    +1341    # https://spark.apache.org/docs/3.0.0-preview/sql-ref-syntax-dml-insert-overwrite-directory-hive.html
    +1342    arg_types = {"this": True, "local": False, "row_format": False}
     
    @@ -14760,13 +15253,13 @@ If an Expression instance is passed, it w
    -
    1222class ForeignKey(Expression):
    -1223    arg_types = {
    -1224        "expressions": True,
    -1225        "reference": False,
    -1226        "delete": False,
    -1227        "update": False,
    -1228    }
    +            
    1345class ForeignKey(Expression):
    +1346    arg_types = {
    +1347        "expressions": True,
    +1348        "reference": False,
    +1349        "delete": False,
    +1350        "update": False,
    +1351    }
     
    @@ -14829,8 +15322,8 @@ If an Expression instance is passed, it w
    -
    1231class PrimaryKey(Expression):
    -1232    arg_types = {"expressions": True, "options": False}
    +            
    1354class PrimaryKey(Expression):
    +1355    arg_types = {"expressions": True, "options": False}
     
    @@ -14893,8 +15386,8 @@ If an Expression instance is passed, it w
    -
    1235class Unique(Expression):
    -1236    arg_types = {"expressions": True}
    +            
    1358class Unique(Expression):
    +1359    arg_types = {"expressions": True}
     
    @@ -14957,8 +15450,8 @@ If an Expression instance is passed, it w
    -
    1241class Into(Expression):
    -1242    arg_types = {"this": True, "temporary": False, "unlogged": False}
    +            
    1364class Into(Expression):
    +1365    arg_types = {"this": True, "temporary": False, "unlogged": False}
     
    @@ -15021,8 +15514,8 @@ If an Expression instance is passed, it w
    -
    1245class From(Expression):
    -1246    arg_types = {"expressions": True}
    +            
    1368class From(Expression):
    +1369    arg_types = {"expressions": True}
     
    @@ -15085,8 +15578,8 @@ If an Expression instance is passed, it w
    -
    1249class Having(Expression):
    -1250    pass
    +            
    1372class Having(Expression):
    +1373    pass
     
    @@ -15149,8 +15642,8 @@ If an Expression instance is passed, it w
    -
    1253class Hint(Expression):
    -1254    arg_types = {"expressions": True}
    +            
    1376class Hint(Expression):
    +1377    arg_types = {"expressions": True}
     
    @@ -15213,8 +15706,8 @@ If an Expression instance is passed, it w
    -
    1257class JoinHint(Expression):
    -1258    arg_types = {"this": True, "expressions": True}
    +            
    1380class JoinHint(Expression):
    +1381    arg_types = {"this": True, "expressions": True}
     
    @@ -15277,22 +15770,22 @@ If an Expression instance is passed, it w
    -
    1261class Identifier(Expression):
    -1262    arg_types = {"this": True, "quoted": False}
    -1263
    -1264    @property
    -1265    def quoted(self):
    -1266        return bool(self.args.get("quoted"))
    -1267
    -1268    @property
    -1269    def hashable_args(self) -> t.Any:
    -1270        if self.quoted and any(char.isupper() for char in self.this):
    -1271            return (self.this, self.quoted)
    -1272        return self.this.lower()
    -1273
    -1274    @property
    -1275    def output_name(self):
    -1276        return self.name
    +            
    1384class Identifier(Expression):
    +1385    arg_types = {"this": True, "quoted": False}
    +1386
    +1387    @property
    +1388    def quoted(self):
    +1389        return bool(self.args.get("quoted"))
    +1390
    +1391    @property
    +1392    def hashable_args(self) -> t.Any:
    +1393        if self.quoted and any(char.isupper() for char in self.this):
    +1394            return (self.this, self.quoted)
    +1395        return self.this.lower()
    +1396
    +1397    @property
    +1398    def output_name(self):
    +1399        return self.name
     
    @@ -15384,16 +15877,16 @@ If an Expression instance is passed, it w
    -
    1279class Index(Expression):
    -1280    arg_types = {
    -1281        "this": False,
    -1282        "table": False,
    -1283        "where": False,
    -1284        "columns": False,
    -1285        "unique": False,
    -1286        "primary": False,
    -1287        "amp": False,  # teradata
    -1288    }
    +            
    1402class Index(Expression):
    +1403    arg_types = {
    +1404        "this": False,
    +1405        "table": False,
    +1406        "where": False,
    +1407        "columns": False,
    +1408        "unique": False,
    +1409        "primary": False,
    +1410        "amp": False,  # teradata
    +1411    }
     
    @@ -15456,18 +15949,18 @@ If an Expression instance is passed, it w
    -
    1291class Insert(Expression):
    -1292    arg_types = {
    -1293        "with": False,
    -1294        "this": True,
    -1295        "expression": False,
    -1296        "conflict": False,
    -1297        "returning": False,
    -1298        "overwrite": False,
    -1299        "exists": False,
    -1300        "partition": False,
    -1301        "alternative": False,
    -1302    }
    +            
    1414class Insert(Expression):
    +1415    arg_types = {
    +1416        "with": False,
    +1417        "this": True,
    +1418        "expression": False,
    +1419        "conflict": False,
    +1420        "returning": False,
    +1421        "overwrite": False,
    +1422        "exists": False,
    +1423        "partition": False,
    +1424        "alternative": False,
    +1425    }
     
    @@ -15530,14 +16023,14 @@ If an Expression instance is passed, it w
    -
    1305class OnConflict(Expression):
    -1306    arg_types = {
    -1307        "duplicate": False,
    -1308        "expressions": False,
    -1309        "nothing": False,
    -1310        "key": False,
    -1311        "constraint": False,
    -1312    }
    +            
    1428class OnConflict(Expression):
    +1429    arg_types = {
    +1430        "duplicate": False,
    +1431        "expressions": False,
    +1432        "nothing": False,
    +1433        "key": False,
    +1434        "constraint": False,
    +1435    }
     
    @@ -15600,8 +16093,8 @@ If an Expression instance is passed, it w
    -
    1315class Returning(Expression):
    -1316    arg_types = {"expressions": True}
    +            
    1438class Returning(Expression):
    +1439    arg_types = {"expressions": True}
     
    @@ -15664,8 +16157,8 @@ If an Expression instance is passed, it w
    -
    1320class Introducer(Expression):
    -1321    arg_types = {"this": True, "expression": True}
    +            
    1443class Introducer(Expression):
    +1444    arg_types = {"this": True, "expression": True}
     
    @@ -15728,8 +16221,8 @@ If an Expression instance is passed, it w
    -
    1325class National(Expression):
    -1326    pass
    +            
    1448class National(Expression):
    +1449    pass
     
    @@ -15792,16 +16285,16 @@ If an Expression instance is passed, it w
    -
    1329class LoadData(Expression):
    -1330    arg_types = {
    -1331        "this": True,
    -1332        "local": False,
    -1333        "overwrite": False,
    -1334        "inpath": True,
    -1335        "partition": False,
    -1336        "input_format": False,
    -1337        "serde": False,
    -1338    }
    +            
    1452class LoadData(Expression):
    +1453    arg_types = {
    +1454        "this": True,
    +1455        "local": False,
    +1456        "overwrite": False,
    +1457        "inpath": True,
    +1458        "partition": False,
    +1459        "input_format": False,
    +1460        "serde": False,
    +1461    }
     
    @@ -15864,8 +16357,8 @@ If an Expression instance is passed, it w
    -
    1341class Partition(Expression):
    -1342    arg_types = {"expressions": True}
    +            
    1464class Partition(Expression):
    +1465    arg_types = {"expressions": True}
     
    @@ -15928,13 +16421,13 @@ If an Expression instance is passed, it w
    -
    1345class Fetch(Expression):
    -1346    arg_types = {
    -1347        "direction": False,
    -1348        "count": False,
    -1349        "percent": False,
    -1350        "with_ties": False,
    -1351    }
    +            
    1468class Fetch(Expression):
    +1469    arg_types = {
    +1470        "direction": False,
    +1471        "count": False,
    +1472        "percent": False,
    +1473        "with_ties": False,
    +1474    }
     
    @@ -15997,13 +16490,13 @@ If an Expression instance is passed, it w
    -
    1354class Group(Expression):
    -1355    arg_types = {
    -1356        "expressions": False,
    -1357        "grouping_sets": False,
    -1358        "cube": False,
    -1359        "rollup": False,
    -1360    }
    +            
    1477class Group(Expression):
    +1478    arg_types = {
    +1479        "expressions": False,
    +1480        "grouping_sets": False,
    +1481        "cube": False,
    +1482        "rollup": False,
    +1483    }
     
    @@ -16066,8 +16559,8 @@ If an Expression instance is passed, it w
    -
    1363class Lambda(Expression):
    -1364    arg_types = {"this": True, "expressions": True}
    +            
    1486class Lambda(Expression):
    +1487    arg_types = {"this": True, "expressions": True}
     
    @@ -16130,8 +16623,8 @@ If an Expression instance is passed, it w
    -
    1367class Limit(Expression):
    -1368    arg_types = {"this": False, "expression": True}
    +            
    1490class Limit(Expression):
    +1491    arg_types = {"this": False, "expression": True}
     
    @@ -16194,24 +16687,24 @@ If an Expression instance is passed, it w
    -
    1371class Literal(Condition):
    -1372    arg_types = {"this": True, "is_string": True}
    -1373
    -1374    @property
    -1375    def hashable_args(self) -> t.Any:
    -1376        return (self.this, self.args.get("is_string"))
    -1377
    -1378    @classmethod
    -1379    def number(cls, number) -> Literal:
    -1380        return cls(this=str(number), is_string=False)
    -1381
    -1382    @classmethod
    -1383    def string(cls, string) -> Literal:
    -1384        return cls(this=str(string), is_string=True)
    -1385
    -1386    @property
    -1387    def output_name(self):
    -1388        return self.name
    +            
    1494class Literal(Condition):
    +1495    arg_types = {"this": True, "is_string": True}
    +1496
    +1497    @property
    +1498    def hashable_args(self) -> t.Any:
    +1499        return (self.this, self.args.get("is_string"))
    +1500
    +1501    @classmethod
    +1502    def number(cls, number) -> Literal:
    +1503        return cls(this=str(number), is_string=False)
    +1504
    +1505    @classmethod
    +1506    def string(cls, string) -> Literal:
    +1507        return cls(this=str(string), is_string=True)
    +1508
    +1509    @property
    +1510    def output_name(self):
    +1511        return self.name
     
    @@ -16229,9 +16722,9 @@ If an Expression instance is passed, it w
    -
    1378    @classmethod
    -1379    def number(cls, number) -> Literal:
    -1380        return cls(this=str(number), is_string=False)
    +            
    1501    @classmethod
    +1502    def number(cls, number) -> Literal:
    +1503        return cls(this=str(number), is_string=False)
     
    @@ -16250,9 +16743,9 @@ If an Expression instance is passed, it w
    -
    1382    @classmethod
    -1383    def string(cls, string) -> Literal:
    -1384        return cls(this=str(string), is_string=True)
    +            
    1505    @classmethod
    +1506    def string(cls, string) -> Literal:
    +1507        return cls(this=str(string), is_string=True)
     
    @@ -16335,6 +16828,13 @@ If an Expression instance is passed, it w
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -16351,105 +16851,105 @@ If an Expression instance is passed, it w -
    1391class Join(Expression):
    -1392    arg_types = {
    -1393        "this": True,
    -1394        "on": False,
    -1395        "side": False,
    -1396        "kind": False,
    -1397        "using": False,
    -1398        "natural": False,
    -1399        "hint": False,
    -1400    }
    -1401
    -1402    @property
    -1403    def kind(self):
    -1404        return self.text("kind").upper()
    -1405
    -1406    @property
    -1407    def side(self):
    -1408        return self.text("side").upper()
    -1409
    -1410    @property
    -1411    def hint(self):
    -1412        return self.text("hint").upper()
    -1413
    -1414    @property
    -1415    def alias_or_name(self):
    -1416        return self.this.alias_or_name
    -1417
    -1418    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1419        """
    -1420        Append to or set the ON expressions.
    -1421
    -1422        Example:
    -1423            >>> import sqlglot
    -1424            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1425            'JOIN x ON y = 1'
    -1426
    -1427        Args:
    -1428            *expressions (str | Expression): the SQL code strings to parse.
    -1429                If an `Expression` instance is passed, it will be used as-is.
    -1430                Multiple expressions are combined with an AND operator.
    -1431            append (bool): if `True`, AND the new expressions to any existing expression.
    -1432                Otherwise, this resets the expression.
    -1433            dialect (str): the dialect used to parse the input expressions.
    -1434            copy (bool): if `False`, modify this expression instance in-place.
    -1435            opts (kwargs): other options to use to parse the input expressions.
    -1436
    -1437        Returns:
    -1438            Join: the modified join expression.
    -1439        """
    -1440        join = _apply_conjunction_builder(
    -1441            *expressions,
    -1442            instance=self,
    -1443            arg="on",
    -1444            append=append,
    -1445            dialect=dialect,
    -1446            copy=copy,
    -1447            **opts,
    -1448        )
    -1449
    -1450        if join.kind == "CROSS":
    -1451            join.set("kind", None)
    -1452
    -1453        return join
    -1454
    -1455    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1456        """
    -1457        Append to or set the USING expressions.
    -1458
    -1459        Example:
    -1460            >>> import sqlglot
    -1461            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1462            'JOIN x USING (foo, bla)'
    -1463
    -1464        Args:
    -1465            *expressions (str | Expression): the SQL code strings to parse.
    -1466                If an `Expression` instance is passed, it will be used as-is.
    -1467            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1468                Otherwise, this resets the expression.
    -1469            dialect (str): the dialect used to parse the input expressions.
    -1470            copy (bool): if `False`, modify this expression instance in-place.
    -1471            opts (kwargs): other options to use to parse the input expressions.
    -1472
    -1473        Returns:
    -1474            Join: the modified join expression.
    -1475        """
    -1476        join = _apply_list_builder(
    -1477            *expressions,
    -1478            instance=self,
    -1479            arg="using",
    -1480            append=append,
    -1481            dialect=dialect,
    -1482            copy=copy,
    -1483            **opts,
    -1484        )
    -1485
    -1486        if join.kind == "CROSS":
    -1487            join.set("kind", None)
    -1488
    -1489        return join
    +            
    1514class Join(Expression):
    +1515    arg_types = {
    +1516        "this": True,
    +1517        "on": False,
    +1518        "side": False,
    +1519        "kind": False,
    +1520        "using": False,
    +1521        "natural": False,
    +1522        "hint": False,
    +1523    }
    +1524
    +1525    @property
    +1526    def kind(self):
    +1527        return self.text("kind").upper()
    +1528
    +1529    @property
    +1530    def side(self):
    +1531        return self.text("side").upper()
    +1532
    +1533    @property
    +1534    def hint(self):
    +1535        return self.text("hint").upper()
    +1536
    +1537    @property
    +1538    def alias_or_name(self):
    +1539        return self.this.alias_or_name
    +1540
    +1541    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1542        """
    +1543        Append to or set the ON expressions.
    +1544
    +1545        Example:
    +1546            >>> import sqlglot
    +1547            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1548            'JOIN x ON y = 1'
    +1549
    +1550        Args:
    +1551            *expressions (str | Expression): the SQL code strings to parse.
    +1552                If an `Expression` instance is passed, it will be used as-is.
    +1553                Multiple expressions are combined with an AND operator.
    +1554            append (bool): if `True`, AND the new expressions to any existing expression.
    +1555                Otherwise, this resets the expression.
    +1556            dialect (str): the dialect used to parse the input expressions.
    +1557            copy (bool): if `False`, modify this expression instance in-place.
    +1558            opts (kwargs): other options to use to parse the input expressions.
    +1559
    +1560        Returns:
    +1561            Join: the modified join expression.
    +1562        """
    +1563        join = _apply_conjunction_builder(
    +1564            *expressions,
    +1565            instance=self,
    +1566            arg="on",
    +1567            append=append,
    +1568            dialect=dialect,
    +1569            copy=copy,
    +1570            **opts,
    +1571        )
    +1572
    +1573        if join.kind == "CROSS":
    +1574            join.set("kind", None)
    +1575
    +1576        return join
    +1577
    +1578    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1579        """
    +1580        Append to or set the USING expressions.
    +1581
    +1582        Example:
    +1583            >>> import sqlglot
    +1584            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1585            'JOIN x USING (foo, bla)'
    +1586
    +1587        Args:
    +1588            *expressions (str | Expression): the SQL code strings to parse.
    +1589                If an `Expression` instance is passed, it will be used as-is.
    +1590            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1591                Otherwise, this resets the expression.
    +1592            dialect (str): the dialect used to parse the input expressions.
    +1593            copy (bool): if `False`, modify this expression instance in-place.
    +1594            opts (kwargs): other options to use to parse the input expressions.
    +1595
    +1596        Returns:
    +1597            Join: the modified join expression.
    +1598        """
    +1599        join = _apply_list_builder(
    +1600            *expressions,
    +1601            instance=self,
    +1602            arg="using",
    +1603            append=append,
    +1604            dialect=dialect,
    +1605            copy=copy,
    +1606            **opts,
    +1607        )
    +1608
    +1609        if join.kind == "CROSS":
    +1610            join.set("kind", None)
    +1611
    +1612        return join
     
    @@ -16466,42 +16966,42 @@ If an Expression instance is passed, it w
    -
    1418    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1419        """
    -1420        Append to or set the ON expressions.
    -1421
    -1422        Example:
    -1423            >>> import sqlglot
    -1424            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    -1425            'JOIN x ON y = 1'
    -1426
    -1427        Args:
    -1428            *expressions (str | Expression): the SQL code strings to parse.
    -1429                If an `Expression` instance is passed, it will be used as-is.
    -1430                Multiple expressions are combined with an AND operator.
    -1431            append (bool): if `True`, AND the new expressions to any existing expression.
    -1432                Otherwise, this resets the expression.
    -1433            dialect (str): the dialect used to parse the input expressions.
    -1434            copy (bool): if `False`, modify this expression instance in-place.
    -1435            opts (kwargs): other options to use to parse the input expressions.
    -1436
    -1437        Returns:
    -1438            Join: the modified join expression.
    -1439        """
    -1440        join = _apply_conjunction_builder(
    -1441            *expressions,
    -1442            instance=self,
    -1443            arg="on",
    -1444            append=append,
    -1445            dialect=dialect,
    -1446            copy=copy,
    -1447            **opts,
    -1448        )
    -1449
    -1450        if join.kind == "CROSS":
    -1451            join.set("kind", None)
    -1452
    -1453        return join
    +            
    1541    def on(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1542        """
    +1543        Append to or set the ON expressions.
    +1544
    +1545        Example:
    +1546            >>> import sqlglot
    +1547            >>> sqlglot.parse_one("JOIN x", into=Join).on("y = 1").sql()
    +1548            'JOIN x ON y = 1'
    +1549
    +1550        Args:
    +1551            *expressions (str | Expression): the SQL code strings to parse.
    +1552                If an `Expression` instance is passed, it will be used as-is.
    +1553                Multiple expressions are combined with an AND operator.
    +1554            append (bool): if `True`, AND the new expressions to any existing expression.
    +1555                Otherwise, this resets the expression.
    +1556            dialect (str): the dialect used to parse the input expressions.
    +1557            copy (bool): if `False`, modify this expression instance in-place.
    +1558            opts (kwargs): other options to use to parse the input expressions.
    +1559
    +1560        Returns:
    +1561            Join: the modified join expression.
    +1562        """
    +1563        join = _apply_conjunction_builder(
    +1564            *expressions,
    +1565            instance=self,
    +1566            arg="on",
    +1567            append=append,
    +1568            dialect=dialect,
    +1569            copy=copy,
    +1570            **opts,
    +1571        )
    +1572
    +1573        if join.kind == "CROSS":
    +1574            join.set("kind", None)
    +1575
    +1576        return join
     
    @@ -16551,41 +17051,41 @@ Otherwise, this resets the expression.
    -
    1455    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    -1456        """
    -1457        Append to or set the USING expressions.
    -1458
    -1459        Example:
    -1460            >>> import sqlglot
    -1461            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    -1462            'JOIN x USING (foo, bla)'
    -1463
    -1464        Args:
    -1465            *expressions (str | Expression): the SQL code strings to parse.
    -1466                If an `Expression` instance is passed, it will be used as-is.
    -1467            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    -1468                Otherwise, this resets the expression.
    -1469            dialect (str): the dialect used to parse the input expressions.
    -1470            copy (bool): if `False`, modify this expression instance in-place.
    -1471            opts (kwargs): other options to use to parse the input expressions.
    -1472
    -1473        Returns:
    -1474            Join: the modified join expression.
    -1475        """
    -1476        join = _apply_list_builder(
    -1477            *expressions,
    -1478            instance=self,
    -1479            arg="using",
    -1480            append=append,
    -1481            dialect=dialect,
    -1482            copy=copy,
    -1483            **opts,
    -1484        )
    -1485
    -1486        if join.kind == "CROSS":
    -1487            join.set("kind", None)
    -1488
    -1489        return join
    +            
    1578    def using(self, *expressions, append=True, dialect=None, copy=True, **opts):
    +1579        """
    +1580        Append to or set the USING expressions.
    +1581
    +1582        Example:
    +1583            >>> import sqlglot
    +1584            >>> sqlglot.parse_one("JOIN x", into=Join).using("foo", "bla").sql()
    +1585            'JOIN x USING (foo, bla)'
    +1586
    +1587        Args:
    +1588            *expressions (str | Expression): the SQL code strings to parse.
    +1589                If an `Expression` instance is passed, it will be used as-is.
    +1590            append (bool): if `True`, concatenate the new expressions to the existing "using" list.
    +1591                Otherwise, this resets the expression.
    +1592            dialect (str): the dialect used to parse the input expressions.
    +1593            copy (bool): if `False`, modify this expression instance in-place.
    +1594            opts (kwargs): other options to use to parse the input expressions.
    +1595
    +1596        Returns:
    +1597            Join: the modified join expression.
    +1598        """
    +1599        join = _apply_list_builder(
    +1600            *expressions,
    +1601            instance=self,
    +1602            arg="using",
    +1603            append=append,
    +1604            dialect=dialect,
    +1605            copy=copy,
    +1606            **opts,
    +1607        )
    +1608
    +1609        if join.kind == "CROSS":
    +1610            join.set("kind", None)
    +1611
    +1612        return join
     
    @@ -16680,8 +17180,8 @@ Otherwise, this resets the expression.
    -
    1492class Lateral(UDTF):
    -1493    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
    +            
    1615class Lateral(UDTF):
    +1616    arg_types = {"this": True, "view": False, "outer": False, "alias": False}
     
    @@ -16750,17 +17250,17 @@ Otherwise, this resets the expression.
    -
    1496class MatchRecognize(Expression):
    -1497    arg_types = {
    -1498        "partition_by": False,
    -1499        "order": False,
    -1500        "measures": False,
    -1501        "rows": False,
    -1502        "after": False,
    -1503        "pattern": False,
    -1504        "define": False,
    -1505        "alias": False,
    -1506    }
    +            
    1619class MatchRecognize(Expression):
    +1620    arg_types = {
    +1621        "partition_by": False,
    +1622        "order": False,
    +1623        "measures": False,
    +1624        "rows": False,
    +1625        "after": False,
    +1626        "pattern": False,
    +1627        "define": False,
    +1628        "alias": False,
    +1629    }
     
    @@ -16823,8 +17323,8 @@ Otherwise, this resets the expression.
    -
    1511class Final(Expression):
    -1512    pass
    +            
    1634class Final(Expression):
    +1635    pass
     
    @@ -16887,8 +17387,8 @@ Otherwise, this resets the expression.
    -
    1515class Offset(Expression):
    -1516    arg_types = {"this": False, "expression": True}
    +            
    1638class Offset(Expression):
    +1639    arg_types = {"this": False, "expression": True}
     
    @@ -16951,8 +17451,8 @@ Otherwise, this resets the expression.
    -
    1519class Order(Expression):
    -1520    arg_types = {"this": False, "expressions": True}
    +            
    1642class Order(Expression):
    +1643    arg_types = {"this": False, "expressions": True}
     
    @@ -17015,8 +17515,8 @@ Otherwise, this resets the expression.
    -
    1525class Cluster(Order):
    -1526    pass
    +            
    1648class Cluster(Order):
    +1649    pass
     
    @@ -17079,8 +17579,8 @@ Otherwise, this resets the expression.
    -
    1529class Distribute(Order):
    -1530    pass
    +            
    1652class Distribute(Order):
    +1653    pass
     
    @@ -17143,8 +17643,8 @@ Otherwise, this resets the expression.
    -
    1533class Sort(Order):
    -1534    pass
    +            
    1656class Sort(Order):
    +1657    pass
     
    @@ -17207,8 +17707,8 @@ Otherwise, this resets the expression.
    -
    1537class Ordered(Expression):
    -1538    arg_types = {"this": True, "desc": True, "nulls_first": True}
    +            
    1660class Ordered(Expression):
    +1661    arg_types = {"this": True, "desc": True, "nulls_first": True}
     
    @@ -17271,8 +17771,8 @@ Otherwise, this resets the expression.
    -
    1541class Property(Expression):
    -1542    arg_types = {"this": True, "value": True}
    +            
    1664class Property(Expression):
    +1665    arg_types = {"this": True, "value": True}
     
    @@ -17335,8 +17835,8 @@ Otherwise, this resets the expression.
    -
    1545class AfterJournalProperty(Property):
    -1546    arg_types = {"no": True, "dual": False, "local": False}
    +            
    1668class AfterJournalProperty(Property):
    +1669    arg_types = {"no": True, "dual": False, "local": False}
     
    @@ -17399,8 +17899,8 @@ Otherwise, this resets the expression.
    -
    1549class AlgorithmProperty(Property):
    -1550    arg_types = {"this": True}
    +            
    1672class AlgorithmProperty(Property):
    +1673    arg_types = {"this": True}
     
    @@ -17463,8 +17963,8 @@ Otherwise, this resets the expression.
    -
    1553class AutoIncrementProperty(Property):
    -1554    arg_types = {"this": True}
    +            
    1676class AutoIncrementProperty(Property):
    +1677    arg_types = {"this": True}
     
    @@ -17527,8 +18027,8 @@ Otherwise, this resets the expression.
    -
    1557class BlockCompressionProperty(Property):
    -1558    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
    +            
    1680class BlockCompressionProperty(Property):
    +1681    arg_types = {"autotemp": False, "always": False, "default": True, "manual": True, "never": True}
     
    @@ -17591,8 +18091,8 @@ Otherwise, this resets the expression.
    -
    1561class CharacterSetProperty(Property):
    -1562    arg_types = {"this": True, "default": True}
    +            
    1684class CharacterSetProperty(Property):
    +1685    arg_types = {"this": True, "default": True}
     
    @@ -17655,8 +18155,8 @@ Otherwise, this resets the expression.
    -
    1565class ChecksumProperty(Property):
    -1566    arg_types = {"on": False, "default": False}
    +            
    1688class ChecksumProperty(Property):
    +1689    arg_types = {"on": False, "default": False}
     
    @@ -17719,8 +18219,8 @@ Otherwise, this resets the expression.
    -
    1569class CollateProperty(Property):
    -1570    arg_types = {"this": True}
    +            
    1692class CollateProperty(Property):
    +1693    arg_types = {"this": True}
     
    @@ -17783,8 +18283,8 @@ Otherwise, this resets the expression.
    -
    1573class DataBlocksizeProperty(Property):
    -1574    arg_types = {"size": False, "units": False, "min": False, "default": False}
    +            
    1696class DataBlocksizeProperty(Property):
    +1697    arg_types = {"size": False, "units": False, "min": False, "default": False}
     
    @@ -17847,8 +18347,8 @@ Otherwise, this resets the expression.
    -
    1577class DefinerProperty(Property):
    -1578    arg_types = {"this": True}
    +            
    1700class DefinerProperty(Property):
    +1701    arg_types = {"this": True}
     
    @@ -17911,8 +18411,8 @@ Otherwise, this resets the expression.
    -
    1581class DistKeyProperty(Property):
    -1582    arg_types = {"this": True}
    +            
    1704class DistKeyProperty(Property):
    +1705    arg_types = {"this": True}
     
    @@ -17975,8 +18475,8 @@ Otherwise, this resets the expression.
    -
    1585class DistStyleProperty(Property):
    -1586    arg_types = {"this": True}
    +            
    1708class DistStyleProperty(Property):
    +1709    arg_types = {"this": True}
     
    @@ -18039,8 +18539,8 @@ Otherwise, this resets the expression.
    -
    1589class EngineProperty(Property):
    -1590    arg_types = {"this": True}
    +            
    1712class EngineProperty(Property):
    +1713    arg_types = {"this": True}
     
    @@ -18103,8 +18603,8 @@ Otherwise, this resets the expression.
    -
    1593class ExecuteAsProperty(Property):
    -1594    arg_types = {"this": True}
    +            
    1716class ExecuteAsProperty(Property):
    +1717    arg_types = {"this": True}
     
    @@ -18167,8 +18667,8 @@ Otherwise, this resets the expression.
    -
    1597class ExternalProperty(Property):
    -1598    arg_types = {"this": False}
    +            
    1720class ExternalProperty(Property):
    +1721    arg_types = {"this": False}
     
    @@ -18231,8 +18731,8 @@ Otherwise, this resets the expression.
    -
    1601class FallbackProperty(Property):
    -1602    arg_types = {"no": True, "protection": False}
    +            
    1724class FallbackProperty(Property):
    +1725    arg_types = {"no": True, "protection": False}
     
    @@ -18295,8 +18795,8 @@ Otherwise, this resets the expression.
    -
    1605class FileFormatProperty(Property):
    -1606    arg_types = {"this": True}
    +            
    1728class FileFormatProperty(Property):
    +1729    arg_types = {"this": True}
     
    @@ -18359,8 +18859,8 @@ Otherwise, this resets the expression.
    -
    1609class FreespaceProperty(Property):
    -1610    arg_types = {"this": True, "percent": False}
    +            
    1732class FreespaceProperty(Property):
    +1733    arg_types = {"this": True, "percent": False}
     
    @@ -18423,8 +18923,8 @@ Otherwise, this resets the expression.
    -
    1613class InputOutputFormat(Expression):
    -1614    arg_types = {"input_format": False, "output_format": False}
    +            
    1736class InputOutputFormat(Expression):
    +1737    arg_types = {"input_format": False, "output_format": False}
     
    @@ -18487,14 +18987,14 @@ Otherwise, this resets the expression.
    -
    1617class IsolatedLoadingProperty(Property):
    -1618    arg_types = {
    -1619        "no": True,
    -1620        "concurrent": True,
    -1621        "for_all": True,
    -1622        "for_insert": True,
    -1623        "for_none": True,
    -1624    }
    +            
    1740class IsolatedLoadingProperty(Property):
    +1741    arg_types = {
    +1742        "no": True,
    +1743        "concurrent": True,
    +1744        "for_all": True,
    +1745        "for_insert": True,
    +1746        "for_none": True,
    +1747    }
     
    @@ -18557,8 +19057,8 @@ Otherwise, this resets the expression.
    -
    1627class JournalProperty(Property):
    -1628    arg_types = {"no": True, "dual": False, "before": False}
    +            
    1750class JournalProperty(Property):
    +1751    arg_types = {"no": True, "dual": False, "before": False}
     
    @@ -18621,8 +19121,8 @@ Otherwise, this resets the expression.
    -
    1631class LanguageProperty(Property):
    -1632    arg_types = {"this": True}
    +            
    1754class LanguageProperty(Property):
    +1755    arg_types = {"this": True}
     
    @@ -18685,8 +19185,8 @@ Otherwise, this resets the expression.
    -
    1635class LikeProperty(Property):
    -1636    arg_types = {"this": True, "expressions": False}
    +            
    1758class LikeProperty(Property):
    +1759    arg_types = {"this": True, "expressions": False}
     
    @@ -18749,8 +19249,8 @@ Otherwise, this resets the expression.
    -
    1639class LocationProperty(Property):
    -1640    arg_types = {"this": True}
    +            
    1762class LocationProperty(Property):
    +1763    arg_types = {"this": True}
     
    @@ -18813,14 +19313,14 @@ Otherwise, this resets the expression.
    -
    1643class LockingProperty(Property):
    -1644    arg_types = {
    -1645        "this": False,
    -1646        "kind": True,
    -1647        "for_or_in": True,
    -1648        "lock_type": True,
    -1649        "override": False,
    -1650    }
    +            
    1766class LockingProperty(Property):
    +1767    arg_types = {
    +1768        "this": False,
    +1769        "kind": True,
    +1770        "for_or_in": True,
    +1771        "lock_type": True,
    +1772        "override": False,
    +1773    }
     
    @@ -18883,8 +19383,8 @@ Otherwise, this resets the expression.
    -
    1653class LogProperty(Property):
    -1654    arg_types = {"no": True}
    +            
    1776class LogProperty(Property):
    +1777    arg_types = {"no": True}
     
    @@ -18947,8 +19447,8 @@ Otherwise, this resets the expression.
    -
    1657class MaterializedProperty(Property):
    -1658    arg_types = {"this": False}
    +            
    1780class MaterializedProperty(Property):
    +1781    arg_types = {"this": False}
     
    @@ -19011,8 +19511,8 @@ Otherwise, this resets the expression.
    -
    1661class MergeBlockRatioProperty(Property):
    -1662    arg_types = {"this": False, "no": False, "default": False, "percent": False}
    +            
    1784class MergeBlockRatioProperty(Property):
    +1785    arg_types = {"this": False, "no": False, "default": False, "percent": False}
     
    @@ -19075,8 +19575,8 @@ Otherwise, this resets the expression.
    -
    1665class NoPrimaryIndexProperty(Property):
    -1666    arg_types = {"this": False}
    +            
    1788class NoPrimaryIndexProperty(Property):
    +1789    arg_types = {"this": False}
     
    @@ -19139,8 +19639,8 @@ Otherwise, this resets the expression.
    -
    1669class OnCommitProperty(Property):
    -1670    arg_type = {"this": False}
    +            
    1792class OnCommitProperty(Property):
    +1793    arg_type = {"this": False}
     
    @@ -19203,8 +19703,8 @@ Otherwise, this resets the expression.
    -
    1673class PartitionedByProperty(Property):
    -1674    arg_types = {"this": True}
    +            
    1796class PartitionedByProperty(Property):
    +1797    arg_types = {"this": True}
     
    @@ -19267,8 +19767,8 @@ Otherwise, this resets the expression.
    -
    1677class ReturnsProperty(Property):
    -1678    arg_types = {"this": True, "is_table": False, "table": False}
    +            
    1800class ReturnsProperty(Property):
    +1801    arg_types = {"this": True, "is_table": False, "table": False}
     
    @@ -19331,8 +19831,8 @@ Otherwise, this resets the expression.
    -
    1681class RowFormatProperty(Property):
    -1682    arg_types = {"this": True}
    +            
    1804class RowFormatProperty(Property):
    +1805    arg_types = {"this": True}
     
    @@ -19395,17 +19895,17 @@ Otherwise, this resets the expression.
    -
    1685class RowFormatDelimitedProperty(Property):
    -1686    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    -1687    arg_types = {
    -1688        "fields": False,
    -1689        "escaped": False,
    -1690        "collection_items": False,
    -1691        "map_keys": False,
    -1692        "lines": False,
    -1693        "null": False,
    -1694        "serde": False,
    -1695    }
    +            
    1808class RowFormatDelimitedProperty(Property):
    +1809    # https://cwiki.apache.org/confluence/display/hive/languagemanual+dml
    +1810    arg_types = {
    +1811        "fields": False,
    +1812        "escaped": False,
    +1813        "collection_items": False,
    +1814        "map_keys": False,
    +1815        "lines": False,
    +1816        "null": False,
    +1817        "serde": False,
    +1818    }
     
    @@ -19468,8 +19968,8 @@ Otherwise, this resets the expression.
    -
    1698class RowFormatSerdeProperty(Property):
    -1699    arg_types = {"this": True}
    +            
    1821class RowFormatSerdeProperty(Property):
    +1822    arg_types = {"this": True}
     
    @@ -19532,8 +20032,8 @@ Otherwise, this resets the expression.
    -
    1702class SchemaCommentProperty(Property):
    -1703    arg_types = {"this": True}
    +            
    1825class SchemaCommentProperty(Property):
    +1826    arg_types = {"this": True}
     
    @@ -19596,8 +20096,8 @@ Otherwise, this resets the expression.
    -
    1706class SerdeProperties(Property):
    -1707    arg_types = {"expressions": True}
    +            
    1829class SerdeProperties(Property):
    +1830    arg_types = {"expressions": True}
     
    @@ -19660,8 +20160,8 @@ Otherwise, this resets the expression.
    -
    1710class SetProperty(Property):
    -1711    arg_types = {"multi": True}
    +            
    1833class SetProperty(Property):
    +1834    arg_types = {"multi": True}
     
    @@ -19724,8 +20224,8 @@ Otherwise, this resets the expression.
    -
    1714class SortKeyProperty(Property):
    -1715    arg_types = {"this": True, "compound": False}
    +            
    1837class SortKeyProperty(Property):
    +1838    arg_types = {"this": True, "compound": False}
     
    @@ -19788,8 +20288,8 @@ Otherwise, this resets the expression.
    -
    1718class SqlSecurityProperty(Property):
    -1719    arg_types = {"definer": True}
    +            
    1841class SqlSecurityProperty(Property):
    +1842    arg_types = {"definer": True}
     
    @@ -19852,8 +20352,8 @@ Otherwise, this resets the expression.
    -
    1722class StabilityProperty(Property):
    -1723    arg_types = {"this": True}
    +            
    1845class StabilityProperty(Property):
    +1846    arg_types = {"this": True}
     
    @@ -19916,8 +20416,8 @@ Otherwise, this resets the expression.
    -
    1726class TableFormatProperty(Property):
    -1727    arg_types = {"this": True}
    +            
    1849class TableFormatProperty(Property):
    +1850    arg_types = {"this": True}
     
    @@ -19980,8 +20480,8 @@ Otherwise, this resets the expression.
    -
    1730class TemporaryProperty(Property):
    -1731    arg_types = {"global_": True}
    +            
    1853class TemporaryProperty(Property):
    +1854    arg_types = {"global_": True}
     
    @@ -20044,8 +20544,8 @@ Otherwise, this resets the expression.
    -
    1734class TransientProperty(Property):
    -1735    arg_types = {"this": False}
    +            
    1857class TransientProperty(Property):
    +1858    arg_types = {"this": False}
     
    @@ -20108,8 +20608,8 @@ Otherwise, this resets the expression.
    -
    1738class VolatileProperty(Property):
    -1739    arg_types = {"this": False}
    +            
    1861class VolatileProperty(Property):
    +1862    arg_types = {"this": False}
     
    @@ -20172,8 +20672,8 @@ Otherwise, this resets the expression.
    -
    1742class WithDataProperty(Property):
    -1743    arg_types = {"no": True, "statistics": False}
    +            
    1865class WithDataProperty(Property):
    +1866    arg_types = {"no": True, "statistics": False}
     
    @@ -20236,8 +20736,8 @@ Otherwise, this resets the expression.
    -
    1746class WithJournalTableProperty(Property):
    -1747    arg_types = {"this": True}
    +            
    1869class WithJournalTableProperty(Property):
    +1870    arg_types = {"this": True}
     
    @@ -20300,66 +20800,66 @@ Otherwise, this resets the expression.
    -
    1750class Properties(Expression):
    -1751    arg_types = {"expressions": True}
    -1752
    -1753    NAME_TO_PROPERTY = {
    -1754        "ALGORITHM": AlgorithmProperty,
    -1755        "AUTO_INCREMENT": AutoIncrementProperty,
    -1756        "CHARACTER SET": CharacterSetProperty,
    -1757        "COLLATE": CollateProperty,
    -1758        "COMMENT": SchemaCommentProperty,
    -1759        "DEFINER": DefinerProperty,
    -1760        "DISTKEY": DistKeyProperty,
    -1761        "DISTSTYLE": DistStyleProperty,
    -1762        "ENGINE": EngineProperty,
    -1763        "EXECUTE AS": ExecuteAsProperty,
    -1764        "FORMAT": FileFormatProperty,
    -1765        "LANGUAGE": LanguageProperty,
    -1766        "LOCATION": LocationProperty,
    -1767        "PARTITIONED_BY": PartitionedByProperty,
    -1768        "RETURNS": ReturnsProperty,
    -1769        "ROW_FORMAT": RowFormatProperty,
    -1770        "SORTKEY": SortKeyProperty,
    -1771        "TABLE_FORMAT": TableFormatProperty,
    -1772    }
    -1773
    -1774    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    -1775
    -1776    # CREATE property locations
    -1777    # Form: schema specified
    -1778    #   create [POST_CREATE]
    -1779    #     table a [POST_NAME]
    -1780    #     (b int) [POST_SCHEMA]
    -1781    #     with ([POST_WITH])
    -1782    #     index (b) [POST_INDEX]
    -1783    #
    -1784    # Form: alias selection
    -1785    #   create [POST_CREATE]
    -1786    #     table a [POST_NAME]
    -1787    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    -1788    #     index (c) [POST_INDEX]
    -1789    class Location(AutoName):
    -1790        POST_CREATE = auto()
    -1791        POST_NAME = auto()
    -1792        POST_SCHEMA = auto()
    -1793        POST_WITH = auto()
    -1794        POST_ALIAS = auto()
    -1795        POST_EXPRESSION = auto()
    -1796        POST_INDEX = auto()
    -1797        UNSUPPORTED = auto()
    -1798
    -1799    @classmethod
    -1800    def from_dict(cls, properties_dict) -> Properties:
    -1801        expressions = []
    -1802        for key, value in properties_dict.items():
    -1803            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1804            if property_cls:
    -1805                expressions.append(property_cls(this=convert(value)))
    -1806            else:
    -1807                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1808
    -1809        return cls(expressions=expressions)
    +            
    1873class Properties(Expression):
    +1874    arg_types = {"expressions": True}
    +1875
    +1876    NAME_TO_PROPERTY = {
    +1877        "ALGORITHM": AlgorithmProperty,
    +1878        "AUTO_INCREMENT": AutoIncrementProperty,
    +1879        "CHARACTER SET": CharacterSetProperty,
    +1880        "COLLATE": CollateProperty,
    +1881        "COMMENT": SchemaCommentProperty,
    +1882        "DEFINER": DefinerProperty,
    +1883        "DISTKEY": DistKeyProperty,
    +1884        "DISTSTYLE": DistStyleProperty,
    +1885        "ENGINE": EngineProperty,
    +1886        "EXECUTE AS": ExecuteAsProperty,
    +1887        "FORMAT": FileFormatProperty,
    +1888        "LANGUAGE": LanguageProperty,
    +1889        "LOCATION": LocationProperty,
    +1890        "PARTITIONED_BY": PartitionedByProperty,
    +1891        "RETURNS": ReturnsProperty,
    +1892        "ROW_FORMAT": RowFormatProperty,
    +1893        "SORTKEY": SortKeyProperty,
    +1894        "TABLE_FORMAT": TableFormatProperty,
    +1895    }
    +1896
    +1897    PROPERTY_TO_NAME = {v: k for k, v in NAME_TO_PROPERTY.items()}
    +1898
    +1899    # CREATE property locations
    +1900    # Form: schema specified
    +1901    #   create [POST_CREATE]
    +1902    #     table a [POST_NAME]
    +1903    #     (b int) [POST_SCHEMA]
    +1904    #     with ([POST_WITH])
    +1905    #     index (b) [POST_INDEX]
    +1906    #
    +1907    # Form: alias selection
    +1908    #   create [POST_CREATE]
    +1909    #     table a [POST_NAME]
    +1910    #     as [POST_ALIAS] (select * from b) [POST_EXPRESSION]
    +1911    #     index (c) [POST_INDEX]
    +1912    class Location(AutoName):
    +1913        POST_CREATE = auto()
    +1914        POST_NAME = auto()
    +1915        POST_SCHEMA = auto()
    +1916        POST_WITH = auto()
    +1917        POST_ALIAS = auto()
    +1918        POST_EXPRESSION = auto()
    +1919        POST_INDEX = auto()
    +1920        UNSUPPORTED = auto()
    +1921
    +1922    @classmethod
    +1923    def from_dict(cls, properties_dict) -> Properties:
    +1924        expressions = []
    +1925        for key, value in properties_dict.items():
    +1926            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1927            if property_cls:
    +1928                expressions.append(property_cls(this=convert(value)))
    +1929            else:
    +1930                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1931
    +1932        return cls(expressions=expressions)
     
    @@ -20377,17 +20877,17 @@ Otherwise, this resets the expression.
    -
    1799    @classmethod
    -1800    def from_dict(cls, properties_dict) -> Properties:
    -1801        expressions = []
    -1802        for key, value in properties_dict.items():
    -1803            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    -1804            if property_cls:
    -1805                expressions.append(property_cls(this=convert(value)))
    -1806            else:
    -1807                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    -1808
    -1809        return cls(expressions=expressions)
    +            
    1922    @classmethod
    +1923    def from_dict(cls, properties_dict) -> Properties:
    +1924        expressions = []
    +1925        for key, value in properties_dict.items():
    +1926            property_cls = cls.NAME_TO_PROPERTY.get(key.upper())
    +1927            if property_cls:
    +1928                expressions.append(property_cls(this=convert(value)))
    +1929            else:
    +1930                expressions.append(Property(this=Literal.string(key), value=convert(value)))
    +1931
    +1932        return cls(expressions=expressions)
     
    @@ -20451,15 +20951,15 @@ Otherwise, this resets the expression.
    -
    1789    class Location(AutoName):
    -1790        POST_CREATE = auto()
    -1791        POST_NAME = auto()
    -1792        POST_SCHEMA = auto()
    -1793        POST_WITH = auto()
    -1794        POST_ALIAS = auto()
    -1795        POST_EXPRESSION = auto()
    -1796        POST_INDEX = auto()
    -1797        UNSUPPORTED = auto()
    +            
    1912    class Location(AutoName):
    +1913        POST_CREATE = auto()
    +1914        POST_NAME = auto()
    +1915        POST_SCHEMA = auto()
    +1916        POST_WITH = auto()
    +1917        POST_ALIAS = auto()
    +1918        POST_EXPRESSION = auto()
    +1919        POST_INDEX = auto()
    +1920        UNSUPPORTED = auto()
     
    @@ -20585,8 +21085,8 @@ Otherwise, this resets the expression.
    -
    1812class Qualify(Expression):
    -1813    pass
    +            
    1935class Qualify(Expression):
    +1936    pass
     
    @@ -20649,8 +21149,8 @@ Otherwise, this resets the expression.
    -
    1817class Return(Expression):
    -1818    pass
    +            
    1940class Return(Expression):
    +1941    pass
     
    @@ -20713,8 +21213,8 @@ Otherwise, this resets the expression.
    -
    1821class Reference(Expression):
    -1822    arg_types = {"this": True, "expressions": False, "options": False}
    +            
    1944class Reference(Expression):
    +1945    arg_types = {"this": True, "expressions": False, "options": False}
     
    @@ -20777,8 +21277,8 @@ Otherwise, this resets the expression.
    -
    1825class Tuple(Expression):
    -1826    arg_types = {"expressions": False}
    +            
    1948class Tuple(Expression):
    +1949    arg_types = {"expressions": False}
     
    @@ -20841,103 +21341,103 @@ Otherwise, this resets the expression.
    -
    1829class Subqueryable(Unionable):
    -1830    def subquery(self, alias=None, copy=True) -> Subquery:
    -1831        """
    -1832        Convert this expression to an aliased expression that can be used as a Subquery.
    -1833
    -1834        Example:
    -1835            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1836            >>> Select().select("x").from_(subquery).sql()
    -1837            'SELECT x FROM (SELECT x FROM tbl)'
    -1838
    -1839        Args:
    -1840            alias (str | Identifier): an optional alias for the subquery
    -1841            copy (bool): if `False`, modify this expression instance in-place.
    -1842
    -1843        Returns:
    -1844            Alias: the subquery
    -1845        """
    -1846        instance = _maybe_copy(self, copy)
    -1847        return Subquery(
    -1848            this=instance,
    -1849            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -1850        )
    -1851
    -1852    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1853        raise NotImplementedError
    -1854
    -1855    @property
    -1856    def ctes(self):
    -1857        with_ = self.args.get("with")
    -1858        if not with_:
    -1859            return []
    -1860        return with_.expressions
    -1861
    -1862    @property
    -1863    def selects(self):
    -1864        raise NotImplementedError("Subqueryable objects must implement `selects`")
    -1865
    -1866    @property
    -1867    def named_selects(self):
    -1868        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    -1869
    -1870    def with_(
    -1871        self,
    -1872        alias,
    -1873        as_,
    -1874        recursive=None,
    -1875        append=True,
    -1876        dialect=None,
    -1877        copy=True,
    -1878        **opts,
    -1879    ):
    -1880        """
    -1881        Append to or set the common table expressions.
    -1882
    -1883        Example:
    -1884            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1885            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1886
    -1887        Args:
    -1888            alias (str | Expression): the SQL code string to parse as the table name.
    -1889                If an `Expression` instance is passed, this is used as-is.
    -1890            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1891                If an `Expression` instance is passed, it will be used as-is.
    -1892            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1893            append (bool): if `True`, add to any existing expressions.
    -1894                Otherwise, this resets the expressions.
    -1895            dialect (str): the dialect used to parse the input expression.
    -1896            copy (bool): if `False`, modify this expression instance in-place.
    -1897            opts (kwargs): other options to use to parse the input expressions.
    -1898
    -1899        Returns:
    -1900            Select: the modified expression.
    -1901        """
    -1902        alias_expression = maybe_parse(
    -1903            alias,
    -1904            dialect=dialect,
    -1905            into=TableAlias,
    -1906            **opts,
    -1907        )
    -1908        as_expression = maybe_parse(
    -1909            as_,
    -1910            dialect=dialect,
    -1911            **opts,
    -1912        )
    -1913        cte = CTE(
    -1914            this=as_expression,
    -1915            alias=alias_expression,
    -1916        )
    -1917        return _apply_child_list_builder(
    -1918            cte,
    -1919            instance=self,
    -1920            arg="with",
    -1921            append=append,
    -1922            copy=copy,
    -1923            into=With,
    -1924            properties={"recursive": recursive or False},
    -1925        )
    +            
    1952class Subqueryable(Unionable):
    +1953    def subquery(self, alias=None, copy=True) -> Subquery:
    +1954        """
    +1955        Convert this expression to an aliased expression that can be used as a Subquery.
    +1956
    +1957        Example:
    +1958            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1959            >>> Select().select("x").from_(subquery).sql()
    +1960            'SELECT x FROM (SELECT x FROM tbl)'
    +1961
    +1962        Args:
    +1963            alias (str | Identifier): an optional alias for the subquery
    +1964            copy (bool): if `False`, modify this expression instance in-place.
    +1965
    +1966        Returns:
    +1967            Alias: the subquery
    +1968        """
    +1969        instance = _maybe_copy(self, copy)
    +1970        return Subquery(
    +1971            this=instance,
    +1972            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +1973        )
    +1974
    +1975    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1976        raise NotImplementedError
    +1977
    +1978    @property
    +1979    def ctes(self):
    +1980        with_ = self.args.get("with")
    +1981        if not with_:
    +1982            return []
    +1983        return with_.expressions
    +1984
    +1985    @property
    +1986    def selects(self):
    +1987        raise NotImplementedError("Subqueryable objects must implement `selects`")
    +1988
    +1989    @property
    +1990    def named_selects(self):
    +1991        raise NotImplementedError("Subqueryable objects must implement `named_selects`")
    +1992
    +1993    def with_(
    +1994        self,
    +1995        alias,
    +1996        as_,
    +1997        recursive=None,
    +1998        append=True,
    +1999        dialect=None,
    +2000        copy=True,
    +2001        **opts,
    +2002    ):
    +2003        """
    +2004        Append to or set the common table expressions.
    +2005
    +2006        Example:
    +2007            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +2008            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +2009
    +2010        Args:
    +2011            alias (str | Expression): the SQL code string to parse as the table name.
    +2012                If an `Expression` instance is passed, this is used as-is.
    +2013            as_ (str | Expression): the SQL code string to parse as the table expression.
    +2014                If an `Expression` instance is passed, it will be used as-is.
    +2015            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +2016            append (bool): if `True`, add to any existing expressions.
    +2017                Otherwise, this resets the expressions.
    +2018            dialect (str): the dialect used to parse the input expression.
    +2019            copy (bool): if `False`, modify this expression instance in-place.
    +2020            opts (kwargs): other options to use to parse the input expressions.
    +2021
    +2022        Returns:
    +2023            Select: the modified expression.
    +2024        """
    +2025        alias_expression = maybe_parse(
    +2026            alias,
    +2027            dialect=dialect,
    +2028            into=TableAlias,
    +2029            **opts,
    +2030        )
    +2031        as_expression = maybe_parse(
    +2032            as_,
    +2033            dialect=dialect,
    +2034            **opts,
    +2035        )
    +2036        cte = CTE(
    +2037            this=as_expression,
    +2038            alias=alias_expression,
    +2039        )
    +2040        return _apply_child_list_builder(
    +2041            cte,
    +2042            instance=self,
    +2043            arg="with",
    +2044            append=append,
    +2045            copy=copy,
    +2046            into=With,
    +2047            properties={"recursive": recursive or False},
    +2048        )
     
    @@ -20954,27 +21454,27 @@ Otherwise, this resets the expression.
    -
    1830    def subquery(self, alias=None, copy=True) -> Subquery:
    -1831        """
    -1832        Convert this expression to an aliased expression that can be used as a Subquery.
    -1833
    -1834        Example:
    -1835            >>> subquery = Select().select("x").from_("tbl").subquery()
    -1836            >>> Select().select("x").from_(subquery).sql()
    -1837            'SELECT x FROM (SELECT x FROM tbl)'
    -1838
    -1839        Args:
    -1840            alias (str | Identifier): an optional alias for the subquery
    -1841            copy (bool): if `False`, modify this expression instance in-place.
    -1842
    -1843        Returns:
    -1844            Alias: the subquery
    -1845        """
    -1846        instance = _maybe_copy(self, copy)
    -1847        return Subquery(
    -1848            this=instance,
    -1849            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -1850        )
    +            
    1953    def subquery(self, alias=None, copy=True) -> Subquery:
    +1954        """
    +1955        Convert this expression to an aliased expression that can be used as a Subquery.
    +1956
    +1957        Example:
    +1958            >>> subquery = Select().select("x").from_("tbl").subquery()
    +1959            >>> Select().select("x").from_(subquery).sql()
    +1960            'SELECT x FROM (SELECT x FROM tbl)'
    +1961
    +1962        Args:
    +1963            alias (str | Identifier): an optional alias for the subquery
    +1964            copy (bool): if `False`, modify this expression instance in-place.
    +1965
    +1966        Returns:
    +1967            Alias: the subquery
    +1968        """
    +1969        instance = _maybe_copy(self, copy)
    +1970        return Subquery(
    +1971            this=instance,
    +1972            alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +1973        )
     
    @@ -21018,8 +21518,8 @@ Otherwise, this resets the expression.
    -
    1852    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1853        raise NotImplementedError
    +            
    1975    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +1976        raise NotImplementedError
     
    @@ -21037,62 +21537,62 @@ Otherwise, this resets the expression.
    -
    1870    def with_(
    -1871        self,
    -1872        alias,
    -1873        as_,
    -1874        recursive=None,
    -1875        append=True,
    -1876        dialect=None,
    -1877        copy=True,
    -1878        **opts,
    -1879    ):
    -1880        """
    -1881        Append to or set the common table expressions.
    -1882
    -1883        Example:
    -1884            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    -1885            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    -1886
    -1887        Args:
    -1888            alias (str | Expression): the SQL code string to parse as the table name.
    -1889                If an `Expression` instance is passed, this is used as-is.
    -1890            as_ (str | Expression): the SQL code string to parse as the table expression.
    -1891                If an `Expression` instance is passed, it will be used as-is.
    -1892            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    -1893            append (bool): if `True`, add to any existing expressions.
    -1894                Otherwise, this resets the expressions.
    -1895            dialect (str): the dialect used to parse the input expression.
    -1896            copy (bool): if `False`, modify this expression instance in-place.
    -1897            opts (kwargs): other options to use to parse the input expressions.
    -1898
    -1899        Returns:
    -1900            Select: the modified expression.
    -1901        """
    -1902        alias_expression = maybe_parse(
    -1903            alias,
    -1904            dialect=dialect,
    -1905            into=TableAlias,
    -1906            **opts,
    -1907        )
    -1908        as_expression = maybe_parse(
    -1909            as_,
    -1910            dialect=dialect,
    -1911            **opts,
    -1912        )
    -1913        cte = CTE(
    -1914            this=as_expression,
    -1915            alias=alias_expression,
    -1916        )
    -1917        return _apply_child_list_builder(
    -1918            cte,
    -1919            instance=self,
    -1920            arg="with",
    -1921            append=append,
    -1922            copy=copy,
    -1923            into=With,
    -1924            properties={"recursive": recursive or False},
    -1925        )
    +            
    1993    def with_(
    +1994        self,
    +1995        alias,
    +1996        as_,
    +1997        recursive=None,
    +1998        append=True,
    +1999        dialect=None,
    +2000        copy=True,
    +2001        **opts,
    +2002    ):
    +2003        """
    +2004        Append to or set the common table expressions.
    +2005
    +2006        Example:
    +2007            >>> Select().with_("tbl2", as_="SELECT * FROM tbl").select("x").from_("tbl2").sql()
    +2008            'WITH tbl2 AS (SELECT * FROM tbl) SELECT x FROM tbl2'
    +2009
    +2010        Args:
    +2011            alias (str | Expression): the SQL code string to parse as the table name.
    +2012                If an `Expression` instance is passed, this is used as-is.
    +2013            as_ (str | Expression): the SQL code string to parse as the table expression.
    +2014                If an `Expression` instance is passed, it will be used as-is.
    +2015            recursive (bool): set the RECURSIVE part of the expression. Defaults to `False`.
    +2016            append (bool): if `True`, add to any existing expressions.
    +2017                Otherwise, this resets the expressions.
    +2018            dialect (str): the dialect used to parse the input expression.
    +2019            copy (bool): if `False`, modify this expression instance in-place.
    +2020            opts (kwargs): other options to use to parse the input expressions.
    +2021
    +2022        Returns:
    +2023            Select: the modified expression.
    +2024        """
    +2025        alias_expression = maybe_parse(
    +2026            alias,
    +2027            dialect=dialect,
    +2028            into=TableAlias,
    +2029            **opts,
    +2030        )
    +2031        as_expression = maybe_parse(
    +2032            as_,
    +2033            dialect=dialect,
    +2034            **opts,
    +2035        )
    +2036        cte = CTE(
    +2037            this=as_expression,
    +2038            alias=alias_expression,
    +2039        )
    +2040        return _apply_child_list_builder(
    +2041            cte,
    +2042            instance=self,
    +2043            arg="with",
    +2044            append=append,
    +2045            copy=copy,
    +2046            into=With,
    +2047            properties={"recursive": recursive or False},
    +2048        )
     
    @@ -21195,26 +21695,26 @@ Otherwise, this resets the expressions.
    -
    1949class Table(Expression):
    -1950    arg_types = {
    -1951        "this": True,
    -1952        "alias": False,
    -1953        "db": False,
    -1954        "catalog": False,
    -1955        "laterals": False,
    -1956        "joins": False,
    -1957        "pivots": False,
    -1958        "hints": False,
    -1959        "system_time": False,
    -1960    }
    -1961
    -1962    @property
    -1963    def db(self) -> str:
    -1964        return self.text("db")
    -1965
    -1966    @property
    -1967    def catalog(self) -> str:
    -1968        return self.text("catalog")
    +            
    2072class Table(Expression):
    +2073    arg_types = {
    +2074        "this": True,
    +2075        "alias": False,
    +2076        "db": False,
    +2077        "catalog": False,
    +2078        "laterals": False,
    +2079        "joins": False,
    +2080        "pivots": False,
    +2081        "hints": False,
    +2082        "system_time": False,
    +2083    }
    +2084
    +2085    @property
    +2086    def db(self) -> str:
    +2087        return self.text("db")
    +2088
    +2089    @property
    +2090    def catalog(self) -> str:
    +2091        return self.text("catalog")
     
    @@ -21277,12 +21777,12 @@ Otherwise, this resets the expressions.
    -
    1972class SystemTime(Expression):
    -1973    arg_types = {
    -1974        "this": False,
    -1975        "expression": False,
    -1976        "kind": True,
    -1977    }
    +            
    2095class SystemTime(Expression):
    +2096    arg_types = {
    +2097        "this": False,
    +2098        "expression": False,
    +2099        "kind": True,
    +2100    }
     
    @@ -21345,94 +21845,94 @@ Otherwise, this resets the expressions.
    -
    1980class Union(Subqueryable):
    -1981    arg_types = {
    -1982        "with": False,
    -1983        "this": True,
    -1984        "expression": True,
    -1985        "distinct": False,
    -1986        **QUERY_MODIFIERS,
    -1987    }
    -1988
    -1989    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1990        """
    -1991        Set the LIMIT expression.
    -1992
    -1993        Example:
    -1994            >>> select("1").union(select("1")).limit(1).sql()
    -1995            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1996
    -1997        Args:
    -1998            expression (str | int | Expression): the SQL code string to parse.
    -1999                This can also be an integer.
    -2000                If a `Limit` instance is passed, this is used as-is.
    -2001                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2002            dialect (str): the dialect used to parse the input expression.
    -2003            copy (bool): if `False`, modify this expression instance in-place.
    -2004            opts (kwargs): other options to use to parse the input expressions.
    -2005
    -2006        Returns:
    -2007            Select: The limited subqueryable.
    -2008        """
    -2009        return (
    -2010            select("*")
    -2011            .from_(self.subquery(alias="_l_0", copy=copy))
    -2012            .limit(expression, dialect=dialect, copy=False, **opts)
    -2013        )
    -2014
    -2015    def select(
    -2016        self,
    -2017        *expressions: ExpOrStr,
    -2018        append: bool = True,
    -2019        dialect: DialectType = None,
    -2020        copy: bool = True,
    -2021        **opts,
    -2022    ) -> Union:
    -2023        """Append to or set the SELECT of the union recursively.
    -2024
    -2025        Example:
    -2026            >>> from sqlglot import parse_one
    -2027            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -2028            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -2029
    -2030        Args:
    -2031            *expressions: the SQL code strings to parse.
    -2032                If an `Expression` instance is passed, it will be used as-is.
    -2033            append: if `True`, add to any existing expressions.
    -2034                Otherwise, this resets the expressions.
    -2035            dialect: the dialect used to parse the input expressions.
    -2036            copy: if `False`, modify this expression instance in-place.
    -2037            opts: other options to use to parse the input expressions.
    -2038
    -2039        Returns:
    -2040            Union: the modified expression.
    -2041        """
    -2042        this = self.copy() if copy else self
    -2043        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -2044        this.expression.unnest().select(
    -2045            *expressions, append=append, dialect=dialect, copy=False, **opts
    -2046        )
    -2047        return this
    -2048
    -2049    @property
    -2050    def named_selects(self):
    -2051        return self.this.unnest().named_selects
    -2052
    -2053    @property
    -2054    def is_star(self) -> bool:
    -2055        return self.this.is_star or self.expression.is_star
    -2056
    -2057    @property
    -2058    def selects(self):
    -2059        return self.this.unnest().selects
    -2060
    -2061    @property
    -2062    def left(self):
    -2063        return self.this
    -2064
    -2065    @property
    -2066    def right(self):
    -2067        return self.expression
    +            
    2103class Union(Subqueryable):
    +2104    arg_types = {
    +2105        "with": False,
    +2106        "this": True,
    +2107        "expression": True,
    +2108        "distinct": False,
    +2109        **QUERY_MODIFIERS,
    +2110    }
    +2111
    +2112    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2113        """
    +2114        Set the LIMIT expression.
    +2115
    +2116        Example:
    +2117            >>> select("1").union(select("1")).limit(1).sql()
    +2118            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +2119
    +2120        Args:
    +2121            expression (str | int | Expression): the SQL code string to parse.
    +2122                This can also be an integer.
    +2123                If a `Limit` instance is passed, this is used as-is.
    +2124                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2125            dialect (str): the dialect used to parse the input expression.
    +2126            copy (bool): if `False`, modify this expression instance in-place.
    +2127            opts (kwargs): other options to use to parse the input expressions.
    +2128
    +2129        Returns:
    +2130            Select: The limited subqueryable.
    +2131        """
    +2132        return (
    +2133            select("*")
    +2134            .from_(self.subquery(alias="_l_0", copy=copy))
    +2135            .limit(expression, dialect=dialect, copy=False, **opts)
    +2136        )
    +2137
    +2138    def select(
    +2139        self,
    +2140        *expressions: ExpOrStr,
    +2141        append: bool = True,
    +2142        dialect: DialectType = None,
    +2143        copy: bool = True,
    +2144        **opts,
    +2145    ) -> Union:
    +2146        """Append to or set the SELECT of the union recursively.
    +2147
    +2148        Example:
    +2149            >>> from sqlglot import parse_one
    +2150            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +2151            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +2152
    +2153        Args:
    +2154            *expressions: the SQL code strings to parse.
    +2155                If an `Expression` instance is passed, it will be used as-is.
    +2156            append: if `True`, add to any existing expressions.
    +2157                Otherwise, this resets the expressions.
    +2158            dialect: the dialect used to parse the input expressions.
    +2159            copy: if `False`, modify this expression instance in-place.
    +2160            opts: other options to use to parse the input expressions.
    +2161
    +2162        Returns:
    +2163            Union: the modified expression.
    +2164        """
    +2165        this = self.copy() if copy else self
    +2166        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +2167        this.expression.unnest().select(
    +2168            *expressions, append=append, dialect=dialect, copy=False, **opts
    +2169        )
    +2170        return this
    +2171
    +2172    @property
    +2173    def named_selects(self):
    +2174        return self.this.unnest().named_selects
    +2175
    +2176    @property
    +2177    def is_star(self) -> bool:
    +2178        return self.this.is_star or self.expression.is_star
    +2179
    +2180    @property
    +2181    def selects(self):
    +2182        return self.this.unnest().selects
    +2183
    +2184    @property
    +2185    def left(self):
    +2186        return self.this
    +2187
    +2188    @property
    +2189    def right(self):
    +2190        return self.expression
     
    @@ -21449,31 +21949,31 @@ Otherwise, this resets the expressions.
    -
    1989    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -1990        """
    -1991        Set the LIMIT expression.
    -1992
    -1993        Example:
    -1994            >>> select("1").union(select("1")).limit(1).sql()
    -1995            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    -1996
    -1997        Args:
    -1998            expression (str | int | Expression): the SQL code string to parse.
    -1999                This can also be an integer.
    -2000                If a `Limit` instance is passed, this is used as-is.
    -2001                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2002            dialect (str): the dialect used to parse the input expression.
    -2003            copy (bool): if `False`, modify this expression instance in-place.
    -2004            opts (kwargs): other options to use to parse the input expressions.
    -2005
    -2006        Returns:
    -2007            Select: The limited subqueryable.
    -2008        """
    -2009        return (
    -2010            select("*")
    -2011            .from_(self.subquery(alias="_l_0", copy=copy))
    -2012            .limit(expression, dialect=dialect, copy=False, **opts)
    -2013        )
    +            
    2112    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2113        """
    +2114        Set the LIMIT expression.
    +2115
    +2116        Example:
    +2117            >>> select("1").union(select("1")).limit(1).sql()
    +2118            'SELECT * FROM (SELECT 1 UNION SELECT 1) AS _l_0 LIMIT 1'
    +2119
    +2120        Args:
    +2121            expression (str | int | Expression): the SQL code string to parse.
    +2122                This can also be an integer.
    +2123                If a `Limit` instance is passed, this is used as-is.
    +2124                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2125            dialect (str): the dialect used to parse the input expression.
    +2126            copy (bool): if `False`, modify this expression instance in-place.
    +2127            opts (kwargs): other options to use to parse the input expressions.
    +2128
    +2129        Returns:
    +2130            Select: The limited subqueryable.
    +2131        """
    +2132        return (
    +2133            select("*")
    +2134            .from_(self.subquery(alias="_l_0", copy=copy))
    +2135            .limit(expression, dialect=dialect, copy=False, **opts)
    +2136        )
     
    @@ -21521,39 +22021,39 @@ If another Expression instance is passed,
    -
    2015    def select(
    -2016        self,
    -2017        *expressions: ExpOrStr,
    -2018        append: bool = True,
    -2019        dialect: DialectType = None,
    -2020        copy: bool = True,
    -2021        **opts,
    -2022    ) -> Union:
    -2023        """Append to or set the SELECT of the union recursively.
    -2024
    -2025        Example:
    -2026            >>> from sqlglot import parse_one
    -2027            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    -2028            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    -2029
    -2030        Args:
    -2031            *expressions: the SQL code strings to parse.
    -2032                If an `Expression` instance is passed, it will be used as-is.
    -2033            append: if `True`, add to any existing expressions.
    -2034                Otherwise, this resets the expressions.
    -2035            dialect: the dialect used to parse the input expressions.
    -2036            copy: if `False`, modify this expression instance in-place.
    -2037            opts: other options to use to parse the input expressions.
    -2038
    -2039        Returns:
    -2040            Union: the modified expression.
    -2041        """
    -2042        this = self.copy() if copy else self
    -2043        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    -2044        this.expression.unnest().select(
    -2045            *expressions, append=append, dialect=dialect, copy=False, **opts
    -2046        )
    -2047        return this
    +            
    2138    def select(
    +2139        self,
    +2140        *expressions: ExpOrStr,
    +2141        append: bool = True,
    +2142        dialect: DialectType = None,
    +2143        copy: bool = True,
    +2144        **opts,
    +2145    ) -> Union:
    +2146        """Append to or set the SELECT of the union recursively.
    +2147
    +2148        Example:
    +2149            >>> from sqlglot import parse_one
    +2150            >>> parse_one("select a from x union select a from y union select a from z").select("b").sql()
    +2151            'SELECT a, b FROM x UNION SELECT a, b FROM y UNION SELECT a, b FROM z'
    +2152
    +2153        Args:
    +2154            *expressions: the SQL code strings to parse.
    +2155                If an `Expression` instance is passed, it will be used as-is.
    +2156            append: if `True`, add to any existing expressions.
    +2157                Otherwise, this resets the expressions.
    +2158            dialect: the dialect used to parse the input expressions.
    +2159            copy: if `False`, modify this expression instance in-place.
    +2160            opts: other options to use to parse the input expressions.
    +2161
    +2162        Returns:
    +2163            Union: the modified expression.
    +2164        """
    +2165        this = self.copy() if copy else self
    +2166        this.this.unnest().select(*expressions, append=append, dialect=dialect, copy=False, **opts)
    +2167        this.expression.unnest().select(
    +2168            *expressions, append=append, dialect=dialect, copy=False, **opts
    +2169        )
    +2170        return this
     
    @@ -21671,8 +22171,8 @@ Otherwise, this resets the expressions.
    -
    2070class Except(Union):
    -2071    pass
    +            
    2193class Except(Union):
    +2194    pass
     
    @@ -21751,8 +22251,8 @@ Otherwise, this resets the expressions.
    -
    2074class Intersect(Union):
    -2075    pass
    +            
    2197class Intersect(Union):
    +2198    pass
     
    @@ -21831,13 +22331,13 @@ Otherwise, this resets the expressions.
    -
    2078class Unnest(UDTF):
    -2079    arg_types = {
    -2080        "expressions": True,
    -2081        "ordinality": False,
    -2082        "alias": False,
    -2083        "offset": False,
    -2084    }
    +            
    2201class Unnest(UDTF):
    +2202    arg_types = {
    +2203        "expressions": True,
    +2204        "ordinality": False,
    +2205        "alias": False,
    +2206        "offset": False,
    +2207    }
     
    @@ -21906,15 +22406,15 @@ Otherwise, this resets the expressions.
    -
    2087class Update(Expression):
    -2088    arg_types = {
    -2089        "with": False,
    -2090        "this": False,
    -2091        "expressions": True,
    -2092        "from": False,
    -2093        "where": False,
    -2094        "returning": False,
    -2095    }
    +            
    2210class Update(Expression):
    +2211    arg_types = {
    +2212        "with": False,
    +2213        "this": False,
    +2214        "expressions": True,
    +2215        "from": False,
    +2216        "where": False,
    +2217        "returning": False,
    +2218    }
     
    @@ -21977,12 +22477,12 @@ Otherwise, this resets the expressions.
    -
    2098class Values(UDTF):
    -2099    arg_types = {
    -2100        "expressions": True,
    -2101        "ordinality": False,
    -2102        "alias": False,
    -2103    }
    +            
    2221class Values(UDTF):
    +2222    arg_types = {
    +2223        "expressions": True,
    +2224        "ordinality": False,
    +2225        "alias": False,
    +2226    }
     
    @@ -22051,8 +22551,8 @@ Otherwise, this resets the expressions.
    -
    2106class Var(Expression):
    -2107    pass
    +            
    2229class Var(Expression):
    +2230    pass
     
    @@ -22115,8 +22615,8 @@ Otherwise, this resets the expressions.
    -
    2110class Schema(Expression):
    -2111    arg_types = {"this": False, "expressions": False}
    +            
    2233class Schema(Expression):
    +2234    arg_types = {"this": False, "expressions": False}
     
    @@ -22179,8 +22679,8 @@ Otherwise, this resets the expressions.
    -
    2116class Lock(Expression):
    -2117    arg_types = {"update": True}
    +            
    2239class Lock(Expression):
    +2240    arg_types = {"update": True}
     
    @@ -22243,591 +22743,593 @@ Otherwise, this resets the expressions.
    -
    2120class Select(Subqueryable):
    -2121    arg_types = {
    -2122        "with": False,
    -2123        "kind": False,
    -2124        "expressions": False,
    -2125        "hint": False,
    -2126        "distinct": False,
    -2127        "into": False,
    -2128        "from": False,
    -2129        **QUERY_MODIFIERS,
    -2130    }
    -2131
    -2132    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2133        """
    -2134        Set the FROM expression.
    -2135
    -2136        Example:
    -2137            >>> Select().from_("tbl").select("x").sql()
    -2138            'SELECT x FROM tbl'
    -2139
    -2140        Args:
    -2141            *expressions (str | Expression): the SQL code strings to parse.
    -2142                If a `From` instance is passed, this is used as-is.
    -2143                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -2144            append (bool): if `True`, add to any existing expressions.
    -2145                Otherwise, this flattens all the `From` expression into a single expression.
    -2146            dialect (str): the dialect used to parse the input expression.
    -2147            copy (bool): if `False`, modify this expression instance in-place.
    -2148            opts (kwargs): other options to use to parse the input expressions.
    -2149
    -2150        Returns:
    -2151            Select: the modified expression.
    -2152        """
    -2153        return _apply_child_list_builder(
    -2154            *expressions,
    -2155            instance=self,
    -2156            arg="from",
    -2157            append=append,
    -2158            copy=copy,
    -2159            prefix="FROM",
    -2160            into=From,
    -2161            dialect=dialect,
    -2162            **opts,
    -2163        )
    -2164
    -2165    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2166        """
    -2167        Set the GROUP BY expression.
    -2168
    -2169        Example:
    -2170            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -2171            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -2172
    -2173        Args:
    -2174            *expressions (str | Expression): the SQL code strings to parse.
    -2175                If a `Group` instance is passed, this is used as-is.
    -2176                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -2177                If nothing is passed in then a group by is not applied to the expression
    -2178            append (bool): if `True`, add to any existing expressions.
    -2179                Otherwise, this flattens all the `Group` expression into a single expression.
    -2180            dialect (str): the dialect used to parse the input expression.
    -2181            copy (bool): if `False`, modify this expression instance in-place.
    -2182            opts (kwargs): other options to use to parse the input expressions.
    -2183
    -2184        Returns:
    -2185            Select: the modified expression.
    -2186        """
    -2187        if not expressions:
    -2188            return self if not copy else self.copy()
    -2189        return _apply_child_list_builder(
    -2190            *expressions,
    -2191            instance=self,
    -2192            arg="group",
    -2193            append=append,
    -2194            copy=copy,
    -2195            prefix="GROUP BY",
    -2196            into=Group,
    -2197            dialect=dialect,
    -2198            **opts,
    -2199        )
    -2200
    -2201    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2202        """
    -2203        Set the ORDER BY expression.
    -2204
    -2205        Example:
    -2206            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2207            'SELECT x FROM tbl ORDER BY x DESC'
    -2208
    -2209        Args:
    -2210            *expressions (str | Expression): the SQL code strings to parse.
    -2211                If a `Group` instance is passed, this is used as-is.
    -2212                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2213            append (bool): if `True`, add to any existing expressions.
    -2214                Otherwise, this flattens all the `Order` expression into a single expression.
    -2215            dialect (str): the dialect used to parse the input expression.
    -2216            copy (bool): if `False`, modify this expression instance in-place.
    -2217            opts (kwargs): other options to use to parse the input expressions.
    -2218
    -2219        Returns:
    -2220            Select: the modified expression.
    -2221        """
    -2222        return _apply_child_list_builder(
    -2223            *expressions,
    -2224            instance=self,
    -2225            arg="order",
    -2226            append=append,
    -2227            copy=copy,
    -2228            prefix="ORDER BY",
    -2229            into=Order,
    -2230            dialect=dialect,
    -2231            **opts,
    -2232        )
    -2233
    -2234    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2235        """
    -2236        Set the SORT BY expression.
    -2237
    -2238        Example:
    -2239            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2240            'SELECT x FROM tbl SORT BY x DESC'
    -2241
    -2242        Args:
    -2243            *expressions (str | Expression): the SQL code strings to parse.
    -2244                If a `Group` instance is passed, this is used as-is.
    -2245                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2246            append (bool): if `True`, add to any existing expressions.
    -2247                Otherwise, this flattens all the `Order` expression into a single expression.
    -2248            dialect (str): the dialect used to parse the input expression.
    -2249            copy (bool): if `False`, modify this expression instance in-place.
    -2250            opts (kwargs): other options to use to parse the input expressions.
    -2251
    -2252        Returns:
    -2253            Select: the modified expression.
    -2254        """
    -2255        return _apply_child_list_builder(
    -2256            *expressions,
    -2257            instance=self,
    -2258            arg="sort",
    -2259            append=append,
    -2260            copy=copy,
    -2261            prefix="SORT BY",
    -2262            into=Sort,
    -2263            dialect=dialect,
    -2264            **opts,
    -2265        )
    -2266
    -2267    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2268        """
    -2269        Set the CLUSTER BY expression.
    -2270
    -2271        Example:
    -2272            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2273            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2274
    -2275        Args:
    -2276            *expressions (str | Expression): the SQL code strings to parse.
    -2277                If a `Group` instance is passed, this is used as-is.
    -2278                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2279            append (bool): if `True`, add to any existing expressions.
    -2280                Otherwise, this flattens all the `Order` expression into a single expression.
    -2281            dialect (str): the dialect used to parse the input expression.
    -2282            copy (bool): if `False`, modify this expression instance in-place.
    -2283            opts (kwargs): other options to use to parse the input expressions.
    -2284
    -2285        Returns:
    -2286            Select: the modified expression.
    -2287        """
    -2288        return _apply_child_list_builder(
    -2289            *expressions,
    -2290            instance=self,
    -2291            arg="cluster",
    -2292            append=append,
    -2293            copy=copy,
    -2294            prefix="CLUSTER BY",
    -2295            into=Cluster,
    -2296            dialect=dialect,
    -2297            **opts,
    -2298        )
    -2299
    -2300    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2301        """
    -2302        Set the LIMIT expression.
    -2303
    -2304        Example:
    -2305            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2306            'SELECT x FROM tbl LIMIT 10'
    -2307
    -2308        Args:
    -2309            expression (str | int | Expression): the SQL code string to parse.
    -2310                This can also be an integer.
    -2311                If a `Limit` instance is passed, this is used as-is.
    -2312                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2313            dialect (str): the dialect used to parse the input expression.
    -2314            copy (bool): if `False`, modify this expression instance in-place.
    -2315            opts (kwargs): other options to use to parse the input expressions.
    -2316
    -2317        Returns:
    -2318            Select: the modified expression.
    -2319        """
    -2320        return _apply_builder(
    -2321            expression=expression,
    -2322            instance=self,
    -2323            arg="limit",
    -2324            into=Limit,
    -2325            prefix="LIMIT",
    -2326            dialect=dialect,
    -2327            copy=copy,
    -2328            **opts,
    -2329        )
    -2330
    -2331    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2332        """
    -2333        Set the OFFSET expression.
    -2334
    -2335        Example:
    -2336            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2337            'SELECT x FROM tbl OFFSET 10'
    -2338
    -2339        Args:
    -2340            expression (str | int | Expression): the SQL code string to parse.
    -2341                This can also be an integer.
    -2342                If a `Offset` instance is passed, this is used as-is.
    -2343                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2344            dialect (str): the dialect used to parse the input expression.
    -2345            copy (bool): if `False`, modify this expression instance in-place.
    -2346            opts (kwargs): other options to use to parse the input expressions.
    -2347
    -2348        Returns:
    -2349            Select: the modified expression.
    -2350        """
    -2351        return _apply_builder(
    -2352            expression=expression,
    -2353            instance=self,
    -2354            arg="offset",
    -2355            into=Offset,
    -2356            prefix="OFFSET",
    -2357            dialect=dialect,
    -2358            copy=copy,
    -2359            **opts,
    -2360        )
    -2361
    -2362    def select(
    -2363        self,
    -2364        *expressions: ExpOrStr,
    -2365        append: bool = True,
    -2366        dialect: DialectType = None,
    -2367        copy: bool = True,
    -2368        **opts,
    -2369    ) -> Select:
    -2370        """
    -2371        Append to or set the SELECT expressions.
    -2372
    -2373        Example:
    -2374            >>> Select().select("x", "y").sql()
    -2375            'SELECT x, y'
    -2376
    -2377        Args:
    -2378            *expressions: the SQL code strings to parse.
    -2379                If an `Expression` instance is passed, it will be used as-is.
    -2380            append: if `True`, add to any existing expressions.
    -2381                Otherwise, this resets the expressions.
    -2382            dialect: the dialect used to parse the input expressions.
    -2383            copy: if `False`, modify this expression instance in-place.
    -2384            opts: other options to use to parse the input expressions.
    -2385
    -2386        Returns:
    -2387            Select: the modified expression.
    -2388        """
    -2389        return _apply_list_builder(
    -2390            *expressions,
    -2391            instance=self,
    -2392            arg="expressions",
    -2393            append=append,
    -2394            dialect=dialect,
    -2395            copy=copy,
    -2396            **opts,
    -2397        )
    -2398
    -2399    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2400        """
    -2401        Append to or set the LATERAL expressions.
    -2402
    -2403        Example:
    -2404            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2405            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2406
    -2407        Args:
    -2408            *expressions (str | Expression): the SQL code strings to parse.
    -2409                If an `Expression` instance is passed, it will be used as-is.
    -2410            append (bool): if `True`, add to any existing expressions.
    -2411                Otherwise, this resets the expressions.
    -2412            dialect (str): the dialect used to parse the input expressions.
    -2413            copy (bool): if `False`, modify this expression instance in-place.
    -2414            opts (kwargs): other options to use to parse the input expressions.
    -2415
    -2416        Returns:
    -2417            Select: the modified expression.
    -2418        """
    -2419        return _apply_list_builder(
    -2420            *expressions,
    -2421            instance=self,
    -2422            arg="laterals",
    -2423            append=append,
    -2424            into=Lateral,
    -2425            prefix="LATERAL VIEW",
    -2426            dialect=dialect,
    -2427            copy=copy,
    -2428            **opts,
    -2429        )
    +            
    2243class Select(Subqueryable):
    +2244    arg_types = {
    +2245        "with": False,
    +2246        "kind": False,
    +2247        "expressions": False,
    +2248        "hint": False,
    +2249        "distinct": False,
    +2250        "into": False,
    +2251        "from": False,
    +2252        **QUERY_MODIFIERS,
    +2253    }
    +2254
    +2255    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2256        """
    +2257        Set the FROM expression.
    +2258
    +2259        Example:
    +2260            >>> Select().from_("tbl").select("x").sql()
    +2261            'SELECT x FROM tbl'
    +2262
    +2263        Args:
    +2264            *expressions (str | Expression): the SQL code strings to parse.
    +2265                If a `From` instance is passed, this is used as-is.
    +2266                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +2267            append (bool): if `True`, add to any existing expressions.
    +2268                Otherwise, this flattens all the `From` expression into a single expression.
    +2269            dialect (str): the dialect used to parse the input expression.
    +2270            copy (bool): if `False`, modify this expression instance in-place.
    +2271            opts (kwargs): other options to use to parse the input expressions.
    +2272
    +2273        Returns:
    +2274            Select: the modified expression.
    +2275        """
    +2276        return _apply_child_list_builder(
    +2277            *expressions,
    +2278            instance=self,
    +2279            arg="from",
    +2280            append=append,
    +2281            copy=copy,
    +2282            prefix="FROM",
    +2283            into=From,
    +2284            dialect=dialect,
    +2285            **opts,
    +2286        )
    +2287
    +2288    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2289        """
    +2290        Set the GROUP BY expression.
    +2291
    +2292        Example:
    +2293            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +2294            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +2295
    +2296        Args:
    +2297            *expressions (str | Expression): the SQL code strings to parse.
    +2298                If a `Group` instance is passed, this is used as-is.
    +2299                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +2300                If nothing is passed in then a group by is not applied to the expression
    +2301            append (bool): if `True`, add to any existing expressions.
    +2302                Otherwise, this flattens all the `Group` expression into a single expression.
    +2303            dialect (str): the dialect used to parse the input expression.
    +2304            copy (bool): if `False`, modify this expression instance in-place.
    +2305            opts (kwargs): other options to use to parse the input expressions.
    +2306
    +2307        Returns:
    +2308            Select: the modified expression.
    +2309        """
    +2310        if not expressions:
    +2311            return self if not copy else self.copy()
    +2312        return _apply_child_list_builder(
    +2313            *expressions,
    +2314            instance=self,
    +2315            arg="group",
    +2316            append=append,
    +2317            copy=copy,
    +2318            prefix="GROUP BY",
    +2319            into=Group,
    +2320            dialect=dialect,
    +2321            **opts,
    +2322        )
    +2323
    +2324    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2325        """
    +2326        Set the ORDER BY expression.
    +2327
    +2328        Example:
    +2329            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2330            'SELECT x FROM tbl ORDER BY x DESC'
    +2331
    +2332        Args:
    +2333            *expressions (str | Expression): the SQL code strings to parse.
    +2334                If a `Group` instance is passed, this is used as-is.
    +2335                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2336            append (bool): if `True`, add to any existing expressions.
    +2337                Otherwise, this flattens all the `Order` expression into a single expression.
    +2338            dialect (str): the dialect used to parse the input expression.
    +2339            copy (bool): if `False`, modify this expression instance in-place.
    +2340            opts (kwargs): other options to use to parse the input expressions.
    +2341
    +2342        Returns:
    +2343            Select: the modified expression.
    +2344        """
    +2345        return _apply_child_list_builder(
    +2346            *expressions,
    +2347            instance=self,
    +2348            arg="order",
    +2349            append=append,
    +2350            copy=copy,
    +2351            prefix="ORDER BY",
    +2352            into=Order,
    +2353            dialect=dialect,
    +2354            **opts,
    +2355        )
    +2356
    +2357    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2358        """
    +2359        Set the SORT BY expression.
    +2360
    +2361        Example:
    +2362            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2363            'SELECT x FROM tbl SORT BY x DESC'
    +2364
    +2365        Args:
    +2366            *expressions (str | Expression): the SQL code strings to parse.
    +2367                If a `Group` instance is passed, this is used as-is.
    +2368                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2369            append (bool): if `True`, add to any existing expressions.
    +2370                Otherwise, this flattens all the `Order` expression into a single expression.
    +2371            dialect (str): the dialect used to parse the input expression.
    +2372            copy (bool): if `False`, modify this expression instance in-place.
    +2373            opts (kwargs): other options to use to parse the input expressions.
    +2374
    +2375        Returns:
    +2376            Select: the modified expression.
    +2377        """
    +2378        return _apply_child_list_builder(
    +2379            *expressions,
    +2380            instance=self,
    +2381            arg="sort",
    +2382            append=append,
    +2383            copy=copy,
    +2384            prefix="SORT BY",
    +2385            into=Sort,
    +2386            dialect=dialect,
    +2387            **opts,
    +2388        )
    +2389
    +2390    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2391        """
    +2392        Set the CLUSTER BY expression.
    +2393
    +2394        Example:
    +2395            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2396            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2397
    +2398        Args:
    +2399            *expressions (str | Expression): the SQL code strings to parse.
    +2400                If a `Group` instance is passed, this is used as-is.
    +2401                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2402            append (bool): if `True`, add to any existing expressions.
    +2403                Otherwise, this flattens all the `Order` expression into a single expression.
    +2404            dialect (str): the dialect used to parse the input expression.
    +2405            copy (bool): if `False`, modify this expression instance in-place.
    +2406            opts (kwargs): other options to use to parse the input expressions.
    +2407
    +2408        Returns:
    +2409            Select: the modified expression.
    +2410        """
    +2411        return _apply_child_list_builder(
    +2412            *expressions,
    +2413            instance=self,
    +2414            arg="cluster",
    +2415            append=append,
    +2416            copy=copy,
    +2417            prefix="CLUSTER BY",
    +2418            into=Cluster,
    +2419            dialect=dialect,
    +2420            **opts,
    +2421        )
    +2422
    +2423    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2424        """
    +2425        Set the LIMIT expression.
    +2426
    +2427        Example:
    +2428            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2429            'SELECT x FROM tbl LIMIT 10'
     2430
    -2431    def join(
    -2432        self,
    -2433        expression,
    -2434        on=None,
    -2435        using=None,
    -2436        append=True,
    -2437        join_type=None,
    -2438        join_alias=None,
    -2439        dialect=None,
    -2440        copy=True,
    -2441        **opts,
    -2442    ) -> Select:
    -2443        """
    -2444        Append to or set the JOIN expressions.
    -2445
    -2446        Example:
    -2447            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2448            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2449
    -2450            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2451            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    -2452
    -2453            Use `join_type` to change the type of join:
    -2454
    -2455            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2456            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2431        Args:
    +2432            expression (str | int | Expression): the SQL code string to parse.
    +2433                This can also be an integer.
    +2434                If a `Limit` instance is passed, this is used as-is.
    +2435                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2436            dialect (str): the dialect used to parse the input expression.
    +2437            copy (bool): if `False`, modify this expression instance in-place.
    +2438            opts (kwargs): other options to use to parse the input expressions.
    +2439
    +2440        Returns:
    +2441            Select: the modified expression.
    +2442        """
    +2443        return _apply_builder(
    +2444            expression=expression,
    +2445            instance=self,
    +2446            arg="limit",
    +2447            into=Limit,
    +2448            prefix="LIMIT",
    +2449            dialect=dialect,
    +2450            copy=copy,
    +2451            **opts,
    +2452        )
    +2453
    +2454    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2455        """
    +2456        Set the OFFSET expression.
     2457
    -2458        Args:
    -2459            expression (str | Expression): the SQL code string to parse.
    -2460                If an `Expression` instance is passed, it will be used as-is.
    -2461            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2462                If an `Expression` instance is passed, it will be used as-is.
    -2463            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2464                If an `Expression` instance is passed, it will be used as-is.
    -2465            append (bool): if `True`, add to any existing expressions.
    -2466                Otherwise, this resets the expressions.
    -2467            join_type (str): If set, alter the parsed join type
    -2468            dialect (str): the dialect used to parse the input expressions.
    -2469            copy (bool): if `False`, modify this expression instance in-place.
    -2470            opts (kwargs): other options to use to parse the input expressions.
    -2471
    -2472        Returns:
    -2473            Select: the modified expression.
    -2474        """
    -2475        parse_args = {"dialect": dialect, **opts}
    -2476
    -2477        try:
    -2478            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2479        except ParseError:
    -2480            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2481
    -2482        join = expression if isinstance(expression, Join) else Join(this=expression)
    -2483
    -2484        if isinstance(join.this, Select):
    -2485            join.this.replace(join.this.subquery())
    -2486
    -2487        if join_type:
    -2488            natural: t.Optional[Token]
    -2489            side: t.Optional[Token]
    -2490            kind: t.Optional[Token]
    -2491
    -2492            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    -2493
    -2494            if natural:
    -2495                join.set("natural", True)
    -2496            if side:
    -2497                join.set("side", side.text)
    -2498            if kind:
    -2499                join.set("kind", kind.text)
    -2500
    -2501        if on:
    -2502            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2503            join.set("on", on)
    -2504
    -2505        if using:
    -2506            join = _apply_list_builder(
    -2507                *ensure_collection(using),
    -2508                instance=join,
    -2509                arg="using",
    -2510                append=append,
    -2511                copy=copy,
    -2512                **opts,
    -2513            )
    -2514
    -2515        if join_alias:
    -2516            join.set("this", alias_(join.this, join_alias, table=True))
    -2517        return _apply_list_builder(
    -2518            join,
    -2519            instance=self,
    -2520            arg="joins",
    -2521            append=append,
    -2522            copy=copy,
    -2523            **opts,
    -2524        )
    +2458        Example:
    +2459            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2460            'SELECT x FROM tbl OFFSET 10'
    +2461
    +2462        Args:
    +2463            expression (str | int | Expression): the SQL code string to parse.
    +2464                This can also be an integer.
    +2465                If a `Offset` instance is passed, this is used as-is.
    +2466                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2467            dialect (str): the dialect used to parse the input expression.
    +2468            copy (bool): if `False`, modify this expression instance in-place.
    +2469            opts (kwargs): other options to use to parse the input expressions.
    +2470
    +2471        Returns:
    +2472            Select: the modified expression.
    +2473        """
    +2474        return _apply_builder(
    +2475            expression=expression,
    +2476            instance=self,
    +2477            arg="offset",
    +2478            into=Offset,
    +2479            prefix="OFFSET",
    +2480            dialect=dialect,
    +2481            copy=copy,
    +2482            **opts,
    +2483        )
    +2484
    +2485    def select(
    +2486        self,
    +2487        *expressions: ExpOrStr,
    +2488        append: bool = True,
    +2489        dialect: DialectType = None,
    +2490        copy: bool = True,
    +2491        **opts,
    +2492    ) -> Select:
    +2493        """
    +2494        Append to or set the SELECT expressions.
    +2495
    +2496        Example:
    +2497            >>> Select().select("x", "y").sql()
    +2498            'SELECT x, y'
    +2499
    +2500        Args:
    +2501            *expressions: the SQL code strings to parse.
    +2502                If an `Expression` instance is passed, it will be used as-is.
    +2503            append: if `True`, add to any existing expressions.
    +2504                Otherwise, this resets the expressions.
    +2505            dialect: the dialect used to parse the input expressions.
    +2506            copy: if `False`, modify this expression instance in-place.
    +2507            opts: other options to use to parse the input expressions.
    +2508
    +2509        Returns:
    +2510            Select: the modified expression.
    +2511        """
    +2512        return _apply_list_builder(
    +2513            *expressions,
    +2514            instance=self,
    +2515            arg="expressions",
    +2516            append=append,
    +2517            dialect=dialect,
    +2518            copy=copy,
    +2519            **opts,
    +2520        )
    +2521
    +2522    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2523        """
    +2524        Append to or set the LATERAL expressions.
     2525
    -2526    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2527        """
    -2528        Append to or set the WHERE expressions.
    +2526        Example:
    +2527            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2528            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
     2529
    -2530        Example:
    -2531            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2532            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2533
    -2534        Args:
    -2535            *expressions (str | Expression): the SQL code strings to parse.
    -2536                If an `Expression` instance is passed, it will be used as-is.
    -2537                Multiple expressions are combined with an AND operator.
    -2538            append (bool): if `True`, AND the new expressions to any existing expression.
    -2539                Otherwise, this resets the expression.
    -2540            dialect (str): the dialect used to parse the input expressions.
    -2541            copy (bool): if `False`, modify this expression instance in-place.
    -2542            opts (kwargs): other options to use to parse the input expressions.
    -2543
    -2544        Returns:
    -2545            Select: the modified expression.
    -2546        """
    -2547        return _apply_conjunction_builder(
    -2548            *expressions,
    -2549            instance=self,
    -2550            arg="where",
    -2551            append=append,
    -2552            into=Where,
    -2553            dialect=dialect,
    -2554            copy=copy,
    -2555            **opts,
    -2556        )
    -2557
    -2558    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2559        """
    -2560        Append to or set the HAVING expressions.
    -2561
    -2562        Example:
    -2563            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2564            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2565
    -2566        Args:
    -2567            *expressions (str | Expression): the SQL code strings to parse.
    -2568                If an `Expression` instance is passed, it will be used as-is.
    -2569                Multiple expressions are combined with an AND operator.
    -2570            append (bool): if `True`, AND the new expressions to any existing expression.
    -2571                Otherwise, this resets the expression.
    -2572            dialect (str): the dialect used to parse the input expressions.
    -2573            copy (bool): if `False`, modify this expression instance in-place.
    -2574            opts (kwargs): other options to use to parse the input expressions.
    +2530        Args:
    +2531            *expressions (str | Expression): the SQL code strings to parse.
    +2532                If an `Expression` instance is passed, it will be used as-is.
    +2533            append (bool): if `True`, add to any existing expressions.
    +2534                Otherwise, this resets the expressions.
    +2535            dialect (str): the dialect used to parse the input expressions.
    +2536            copy (bool): if `False`, modify this expression instance in-place.
    +2537            opts (kwargs): other options to use to parse the input expressions.
    +2538
    +2539        Returns:
    +2540            Select: the modified expression.
    +2541        """
    +2542        return _apply_list_builder(
    +2543            *expressions,
    +2544            instance=self,
    +2545            arg="laterals",
    +2546            append=append,
    +2547            into=Lateral,
    +2548            prefix="LATERAL VIEW",
    +2549            dialect=dialect,
    +2550            copy=copy,
    +2551            **opts,
    +2552        )
    +2553
    +2554    def join(
    +2555        self,
    +2556        expression,
    +2557        on=None,
    +2558        using=None,
    +2559        append=True,
    +2560        join_type=None,
    +2561        join_alias=None,
    +2562        dialect=None,
    +2563        copy=True,
    +2564        **opts,
    +2565    ) -> Select:
    +2566        """
    +2567        Append to or set the JOIN expressions.
    +2568
    +2569        Example:
    +2570            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2571            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2572
    +2573            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2574            'SELECT 1 FROM a JOIN b USING (x, y, z)'
     2575
    -2576        Returns:
    -2577            Select: the modified expression.
    -2578        """
    -2579        return _apply_conjunction_builder(
    -2580            *expressions,
    -2581            instance=self,
    -2582            arg="having",
    -2583            append=append,
    -2584            into=Having,
    -2585            dialect=dialect,
    -2586            copy=copy,
    -2587            **opts,
    -2588        )
    -2589
    -2590    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2591        return _apply_list_builder(
    -2592            *expressions,
    -2593            instance=self,
    -2594            arg="windows",
    -2595            append=append,
    -2596            into=Window,
    -2597            dialect=dialect,
    -2598            copy=copy,
    -2599            **opts,
    -2600        )
    -2601
    -2602    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2603        return _apply_conjunction_builder(
    -2604            *expressions,
    -2605            instance=self,
    -2606            arg="qualify",
    -2607            append=append,
    -2608            into=Qualify,
    -2609            dialect=dialect,
    -2610            copy=copy,
    -2611            **opts,
    -2612        )
    -2613
    -2614    def distinct(self, distinct=True, copy=True) -> Select:
    -2615        """
    -2616        Set the OFFSET expression.
    -2617
    -2618        Example:
    -2619            >>> Select().from_("tbl").select("x").distinct().sql()
    -2620            'SELECT DISTINCT x FROM tbl'
    -2621
    -2622        Args:
    -2623            distinct (bool): whether the Select should be distinct
    -2624            copy (bool): if `False`, modify this expression instance in-place.
    -2625
    -2626        Returns:
    -2627            Select: the modified expression.
    -2628        """
    -2629        instance = _maybe_copy(self, copy)
    -2630        instance.set("distinct", Distinct() if distinct else None)
    -2631        return instance
    -2632
    -2633    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    -2634        """
    -2635        Convert this expression to a CREATE TABLE AS statement.
    -2636
    -2637        Example:
    -2638            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2639            'CREATE TABLE x AS SELECT * FROM tbl'
    -2640
    -2641        Args:
    -2642            table (str | Expression): the SQL code string to parse as the table name.
    -2643                If another `Expression` instance is passed, it will be used as-is.
    -2644            properties (dict): an optional mapping of table properties
    -2645            dialect (str): the dialect used to parse the input table.
    -2646            copy (bool): if `False`, modify this expression instance in-place.
    -2647            opts (kwargs): other options to use to parse the input table.
    +2576            Use `join_type` to change the type of join:
    +2577
    +2578            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2579            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2580
    +2581        Args:
    +2582            expression (str | Expression): the SQL code string to parse.
    +2583                If an `Expression` instance is passed, it will be used as-is.
    +2584            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2585                If an `Expression` instance is passed, it will be used as-is.
    +2586            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2587                If an `Expression` instance is passed, it will be used as-is.
    +2588            append (bool): if `True`, add to any existing expressions.
    +2589                Otherwise, this resets the expressions.
    +2590            join_type (str): If set, alter the parsed join type
    +2591            dialect (str): the dialect used to parse the input expressions.
    +2592            copy (bool): if `False`, modify this expression instance in-place.
    +2593            opts (kwargs): other options to use to parse the input expressions.
    +2594
    +2595        Returns:
    +2596            Select: the modified expression.
    +2597        """
    +2598        parse_args = {"dialect": dialect, **opts}
    +2599
    +2600        try:
    +2601            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2602        except ParseError:
    +2603            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2604
    +2605        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2606
    +2607        if isinstance(join.this, Select):
    +2608            join.this.replace(join.this.subquery())
    +2609
    +2610        if join_type:
    +2611            natural: t.Optional[Token]
    +2612            side: t.Optional[Token]
    +2613            kind: t.Optional[Token]
    +2614
    +2615            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2616
    +2617            if natural:
    +2618                join.set("natural", True)
    +2619            if side:
    +2620                join.set("side", side.text)
    +2621            if kind:
    +2622                join.set("kind", kind.text)
    +2623
    +2624        if on:
    +2625            on = and_(*ensure_collection(on), dialect=dialect, copy=copy, **opts)
    +2626            join.set("on", on)
    +2627
    +2628        if using:
    +2629            join = _apply_list_builder(
    +2630                *ensure_collection(using),
    +2631                instance=join,
    +2632                arg="using",
    +2633                append=append,
    +2634                copy=copy,
    +2635                **opts,
    +2636            )
    +2637
    +2638        if join_alias:
    +2639            join.set("this", alias_(join.this, join_alias, table=True))
    +2640        return _apply_list_builder(
    +2641            join,
    +2642            instance=self,
    +2643            arg="joins",
    +2644            append=append,
    +2645            copy=copy,
    +2646            **opts,
    +2647        )
     2648
    -2649        Returns:
    -2650            Create: the CREATE TABLE AS expression
    -2651        """
    -2652        instance = _maybe_copy(self, copy)
    -2653        table_expression = maybe_parse(
    -2654            table,
    -2655            into=Table,
    -2656            dialect=dialect,
    -2657            **opts,
    -2658        )
    -2659        properties_expression = None
    -2660        if properties:
    -2661            properties_expression = Properties.from_dict(properties)
    -2662
    -2663        return Create(
    -2664            this=table_expression,
    -2665            kind="table",
    -2666            expression=instance,
    -2667            properties=properties_expression,
    -2668        )
    -2669
    -2670    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2671        """
    -2672        Set the locking read mode for this expression.
    -2673
    -2674        Examples:
    -2675            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2676            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2677
    -2678            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2679            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2649    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2650        """
    +2651        Append to or set the WHERE expressions.
    +2652
    +2653        Example:
    +2654            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2655            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2656
    +2657        Args:
    +2658            *expressions (str | Expression): the SQL code strings to parse.
    +2659                If an `Expression` instance is passed, it will be used as-is.
    +2660                Multiple expressions are combined with an AND operator.
    +2661            append (bool): if `True`, AND the new expressions to any existing expression.
    +2662                Otherwise, this resets the expression.
    +2663            dialect (str): the dialect used to parse the input expressions.
    +2664            copy (bool): if `False`, modify this expression instance in-place.
    +2665            opts (kwargs): other options to use to parse the input expressions.
    +2666
    +2667        Returns:
    +2668            Select: the modified expression.
    +2669        """
    +2670        return _apply_conjunction_builder(
    +2671            *expressions,
    +2672            instance=self,
    +2673            arg="where",
    +2674            append=append,
    +2675            into=Where,
    +2676            dialect=dialect,
    +2677            copy=copy,
    +2678            **opts,
    +2679        )
     2680
    -2681        Args:
    -2682            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2683            copy: if `False`, modify this expression instance in-place.
    +2681    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2682        """
    +2683        Append to or set the HAVING expressions.
     2684
    -2685        Returns:
    -2686            The modified expression.
    -2687        """
    +2685        Example:
    +2686            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2687            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
     2688
    -2689        inst = _maybe_copy(self, copy)
    -2690        inst.set("lock", Lock(update=update))
    -2691
    -2692        return inst
    -2693
    -2694    @property
    -2695    def named_selects(self) -> t.List[str]:
    -2696        return [e.output_name for e in self.expressions if e.alias_or_name]
    -2697
    -2698    @property
    -2699    def is_star(self) -> bool:
    -2700        return any(expression.is_star for expression in self.expressions)
    -2701
    -2702    @property
    -2703    def selects(self) -> t.List[Expression]:
    -2704        return self.expressions
    +2689        Args:
    +2690            *expressions (str | Expression): the SQL code strings to parse.
    +2691                If an `Expression` instance is passed, it will be used as-is.
    +2692                Multiple expressions are combined with an AND operator.
    +2693            append (bool): if `True`, AND the new expressions to any existing expression.
    +2694                Otherwise, this resets the expression.
    +2695            dialect (str): the dialect used to parse the input expressions.
    +2696            copy (bool): if `False`, modify this expression instance in-place.
    +2697            opts (kwargs): other options to use to parse the input expressions.
    +2698
    +2699        Returns:
    +2700            Select: the modified expression.
    +2701        """
    +2702        return _apply_conjunction_builder(
    +2703            *expressions,
    +2704            instance=self,
    +2705            arg="having",
    +2706            append=append,
    +2707            into=Having,
    +2708            dialect=dialect,
    +2709            copy=copy,
    +2710            **opts,
    +2711        )
    +2712
    +2713    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2714        return _apply_list_builder(
    +2715            *expressions,
    +2716            instance=self,
    +2717            arg="windows",
    +2718            append=append,
    +2719            into=Window,
    +2720            dialect=dialect,
    +2721            copy=copy,
    +2722            **opts,
    +2723        )
    +2724
    +2725    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2726        return _apply_conjunction_builder(
    +2727            *expressions,
    +2728            instance=self,
    +2729            arg="qualify",
    +2730            append=append,
    +2731            into=Qualify,
    +2732            dialect=dialect,
    +2733            copy=copy,
    +2734            **opts,
    +2735        )
    +2736
    +2737    def distinct(self, *ons: ExpOrStr, distinct: bool = True, copy: bool = True) -> Select:
    +2738        """
    +2739        Set the OFFSET expression.
    +2740
    +2741        Example:
    +2742            >>> Select().from_("tbl").select("x").distinct().sql()
    +2743            'SELECT DISTINCT x FROM tbl'
    +2744
    +2745        Args:
    +2746            ons: the expressions to distinct on
    +2747            distinct: whether the Select should be distinct
    +2748            copy: if `False`, modify this expression instance in-place.
    +2749
    +2750        Returns:
    +2751            Select: the modified expression.
    +2752        """
    +2753        instance = _maybe_copy(self, copy)
    +2754        on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons]) if ons else None
    +2755        instance.set("distinct", Distinct(on=on) if distinct else None)
    +2756        return instance
    +2757
    +2758    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2759        """
    +2760        Convert this expression to a CREATE TABLE AS statement.
    +2761
    +2762        Example:
    +2763            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2764            'CREATE TABLE x AS SELECT * FROM tbl'
    +2765
    +2766        Args:
    +2767            table (str | Expression): the SQL code string to parse as the table name.
    +2768                If another `Expression` instance is passed, it will be used as-is.
    +2769            properties (dict): an optional mapping of table properties
    +2770            dialect (str): the dialect used to parse the input table.
    +2771            copy (bool): if `False`, modify this expression instance in-place.
    +2772            opts (kwargs): other options to use to parse the input table.
    +2773
    +2774        Returns:
    +2775            Create: the CREATE TABLE AS expression
    +2776        """
    +2777        instance = _maybe_copy(self, copy)
    +2778        table_expression = maybe_parse(
    +2779            table,
    +2780            into=Table,
    +2781            dialect=dialect,
    +2782            **opts,
    +2783        )
    +2784        properties_expression = None
    +2785        if properties:
    +2786            properties_expression = Properties.from_dict(properties)
    +2787
    +2788        return Create(
    +2789            this=table_expression,
    +2790            kind="table",
    +2791            expression=instance,
    +2792            properties=properties_expression,
    +2793        )
    +2794
    +2795    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2796        """
    +2797        Set the locking read mode for this expression.
    +2798
    +2799        Examples:
    +2800            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2801            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2802
    +2803            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2804            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2805
    +2806        Args:
    +2807            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2808            copy: if `False`, modify this expression instance in-place.
    +2809
    +2810        Returns:
    +2811            The modified expression.
    +2812        """
    +2813
    +2814        inst = _maybe_copy(self, copy)
    +2815        inst.set("lock", Lock(update=update))
    +2816
    +2817        return inst
    +2818
    +2819    @property
    +2820    def named_selects(self) -> t.List[str]:
    +2821        return [e.output_name for e in self.expressions if e.alias_or_name]
    +2822
    +2823    @property
    +2824    def is_star(self) -> bool:
    +2825        return any(expression.is_star for expression in self.expressions)
    +2826
    +2827    @property
    +2828    def selects(self) -> t.List[Expression]:
    +2829        return self.expressions
     
    @@ -22844,38 +23346,38 @@ Otherwise, this resets the expressions.
    -
    2132    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2133        """
    -2134        Set the FROM expression.
    -2135
    -2136        Example:
    -2137            >>> Select().from_("tbl").select("x").sql()
    -2138            'SELECT x FROM tbl'
    -2139
    -2140        Args:
    -2141            *expressions (str | Expression): the SQL code strings to parse.
    -2142                If a `From` instance is passed, this is used as-is.
    -2143                If another `Expression` instance is passed, it will be wrapped in a `From`.
    -2144            append (bool): if `True`, add to any existing expressions.
    -2145                Otherwise, this flattens all the `From` expression into a single expression.
    -2146            dialect (str): the dialect used to parse the input expression.
    -2147            copy (bool): if `False`, modify this expression instance in-place.
    -2148            opts (kwargs): other options to use to parse the input expressions.
    -2149
    -2150        Returns:
    -2151            Select: the modified expression.
    -2152        """
    -2153        return _apply_child_list_builder(
    -2154            *expressions,
    -2155            instance=self,
    -2156            arg="from",
    -2157            append=append,
    -2158            copy=copy,
    -2159            prefix="FROM",
    -2160            into=From,
    -2161            dialect=dialect,
    -2162            **opts,
    -2163        )
    +            
    2255    def from_(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2256        """
    +2257        Set the FROM expression.
    +2258
    +2259        Example:
    +2260            >>> Select().from_("tbl").select("x").sql()
    +2261            'SELECT x FROM tbl'
    +2262
    +2263        Args:
    +2264            *expressions (str | Expression): the SQL code strings to parse.
    +2265                If a `From` instance is passed, this is used as-is.
    +2266                If another `Expression` instance is passed, it will be wrapped in a `From`.
    +2267            append (bool): if `True`, add to any existing expressions.
    +2268                Otherwise, this flattens all the `From` expression into a single expression.
    +2269            dialect (str): the dialect used to parse the input expression.
    +2270            copy (bool): if `False`, modify this expression instance in-place.
    +2271            opts (kwargs): other options to use to parse the input expressions.
    +2272
    +2273        Returns:
    +2274            Select: the modified expression.
    +2275        """
    +2276        return _apply_child_list_builder(
    +2277            *expressions,
    +2278            instance=self,
    +2279            arg="from",
    +2280            append=append,
    +2281            copy=copy,
    +2282            prefix="FROM",
    +2283            into=From,
    +2284            dialect=dialect,
    +2285            **opts,
    +2286        )
     
    @@ -22924,41 +23426,41 @@ Otherwise, this flattens all the From expressio
    -
    2165    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2166        """
    -2167        Set the GROUP BY expression.
    -2168
    -2169        Example:
    -2170            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    -2171            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    -2172
    -2173        Args:
    -2174            *expressions (str | Expression): the SQL code strings to parse.
    -2175                If a `Group` instance is passed, this is used as-is.
    -2176                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    -2177                If nothing is passed in then a group by is not applied to the expression
    -2178            append (bool): if `True`, add to any existing expressions.
    -2179                Otherwise, this flattens all the `Group` expression into a single expression.
    -2180            dialect (str): the dialect used to parse the input expression.
    -2181            copy (bool): if `False`, modify this expression instance in-place.
    -2182            opts (kwargs): other options to use to parse the input expressions.
    -2183
    -2184        Returns:
    -2185            Select: the modified expression.
    -2186        """
    -2187        if not expressions:
    -2188            return self if not copy else self.copy()
    -2189        return _apply_child_list_builder(
    -2190            *expressions,
    -2191            instance=self,
    -2192            arg="group",
    -2193            append=append,
    -2194            copy=copy,
    -2195            prefix="GROUP BY",
    -2196            into=Group,
    -2197            dialect=dialect,
    -2198            **opts,
    -2199        )
    +            
    2288    def group_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2289        """
    +2290        Set the GROUP BY expression.
    +2291
    +2292        Example:
    +2293            >>> Select().from_("tbl").select("x", "COUNT(1)").group_by("x").sql()
    +2294            'SELECT x, COUNT(1) FROM tbl GROUP BY x'
    +2295
    +2296        Args:
    +2297            *expressions (str | Expression): the SQL code strings to parse.
    +2298                If a `Group` instance is passed, this is used as-is.
    +2299                If another `Expression` instance is passed, it will be wrapped in a `Group`.
    +2300                If nothing is passed in then a group by is not applied to the expression
    +2301            append (bool): if `True`, add to any existing expressions.
    +2302                Otherwise, this flattens all the `Group` expression into a single expression.
    +2303            dialect (str): the dialect used to parse the input expression.
    +2304            copy (bool): if `False`, modify this expression instance in-place.
    +2305            opts (kwargs): other options to use to parse the input expressions.
    +2306
    +2307        Returns:
    +2308            Select: the modified expression.
    +2309        """
    +2310        if not expressions:
    +2311            return self if not copy else self.copy()
    +2312        return _apply_child_list_builder(
    +2313            *expressions,
    +2314            instance=self,
    +2315            arg="group",
    +2316            append=append,
    +2317            copy=copy,
    +2318            prefix="GROUP BY",
    +2319            into=Group,
    +2320            dialect=dialect,
    +2321            **opts,
    +2322        )
     
    @@ -23008,38 +23510,38 @@ Otherwise, this flattens all the Group express
    -
    2201    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2202        """
    -2203        Set the ORDER BY expression.
    -2204
    -2205        Example:
    -2206            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    -2207            'SELECT x FROM tbl ORDER BY x DESC'
    -2208
    -2209        Args:
    -2210            *expressions (str | Expression): the SQL code strings to parse.
    -2211                If a `Group` instance is passed, this is used as-is.
    -2212                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    -2213            append (bool): if `True`, add to any existing expressions.
    -2214                Otherwise, this flattens all the `Order` expression into a single expression.
    -2215            dialect (str): the dialect used to parse the input expression.
    -2216            copy (bool): if `False`, modify this expression instance in-place.
    -2217            opts (kwargs): other options to use to parse the input expressions.
    -2218
    -2219        Returns:
    -2220            Select: the modified expression.
    -2221        """
    -2222        return _apply_child_list_builder(
    -2223            *expressions,
    -2224            instance=self,
    -2225            arg="order",
    -2226            append=append,
    -2227            copy=copy,
    -2228            prefix="ORDER BY",
    -2229            into=Order,
    -2230            dialect=dialect,
    -2231            **opts,
    -2232        )
    +            
    2324    def order_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2325        """
    +2326        Set the ORDER BY expression.
    +2327
    +2328        Example:
    +2329            >>> Select().from_("tbl").select("x").order_by("x DESC").sql()
    +2330            'SELECT x FROM tbl ORDER BY x DESC'
    +2331
    +2332        Args:
    +2333            *expressions (str | Expression): the SQL code strings to parse.
    +2334                If a `Group` instance is passed, this is used as-is.
    +2335                If another `Expression` instance is passed, it will be wrapped in a `Order`.
    +2336            append (bool): if `True`, add to any existing expressions.
    +2337                Otherwise, this flattens all the `Order` expression into a single expression.
    +2338            dialect (str): the dialect used to parse the input expression.
    +2339            copy (bool): if `False`, modify this expression instance in-place.
    +2340            opts (kwargs): other options to use to parse the input expressions.
    +2341
    +2342        Returns:
    +2343            Select: the modified expression.
    +2344        """
    +2345        return _apply_child_list_builder(
    +2346            *expressions,
    +2347            instance=self,
    +2348            arg="order",
    +2349            append=append,
    +2350            copy=copy,
    +2351            prefix="ORDER BY",
    +2352            into=Order,
    +2353            dialect=dialect,
    +2354            **opts,
    +2355        )
     
    @@ -23088,38 +23590,38 @@ Otherwise, this flattens all the Order express
    -
    2234    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2235        """
    -2236        Set the SORT BY expression.
    -2237
    -2238        Example:
    -2239            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    -2240            'SELECT x FROM tbl SORT BY x DESC'
    -2241
    -2242        Args:
    -2243            *expressions (str | Expression): the SQL code strings to parse.
    -2244                If a `Group` instance is passed, this is used as-is.
    -2245                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    -2246            append (bool): if `True`, add to any existing expressions.
    -2247                Otherwise, this flattens all the `Order` expression into a single expression.
    -2248            dialect (str): the dialect used to parse the input expression.
    -2249            copy (bool): if `False`, modify this expression instance in-place.
    -2250            opts (kwargs): other options to use to parse the input expressions.
    -2251
    -2252        Returns:
    -2253            Select: the modified expression.
    -2254        """
    -2255        return _apply_child_list_builder(
    -2256            *expressions,
    -2257            instance=self,
    -2258            arg="sort",
    -2259            append=append,
    -2260            copy=copy,
    -2261            prefix="SORT BY",
    -2262            into=Sort,
    -2263            dialect=dialect,
    -2264            **opts,
    -2265        )
    +            
    2357    def sort_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2358        """
    +2359        Set the SORT BY expression.
    +2360
    +2361        Example:
    +2362            >>> Select().from_("tbl").select("x").sort_by("x DESC").sql()
    +2363            'SELECT x FROM tbl SORT BY x DESC'
    +2364
    +2365        Args:
    +2366            *expressions (str | Expression): the SQL code strings to parse.
    +2367                If a `Group` instance is passed, this is used as-is.
    +2368                If another `Expression` instance is passed, it will be wrapped in a `SORT`.
    +2369            append (bool): if `True`, add to any existing expressions.
    +2370                Otherwise, this flattens all the `Order` expression into a single expression.
    +2371            dialect (str): the dialect used to parse the input expression.
    +2372            copy (bool): if `False`, modify this expression instance in-place.
    +2373            opts (kwargs): other options to use to parse the input expressions.
    +2374
    +2375        Returns:
    +2376            Select: the modified expression.
    +2377        """
    +2378        return _apply_child_list_builder(
    +2379            *expressions,
    +2380            instance=self,
    +2381            arg="sort",
    +2382            append=append,
    +2383            copy=copy,
    +2384            prefix="SORT BY",
    +2385            into=Sort,
    +2386            dialect=dialect,
    +2387            **opts,
    +2388        )
     
    @@ -23168,38 +23670,38 @@ Otherwise, this flattens all the Order express
    -
    2267    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2268        """
    -2269        Set the CLUSTER BY expression.
    -2270
    -2271        Example:
    -2272            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    -2273            'SELECT x FROM tbl CLUSTER BY x DESC'
    -2274
    -2275        Args:
    -2276            *expressions (str | Expression): the SQL code strings to parse.
    -2277                If a `Group` instance is passed, this is used as-is.
    -2278                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    -2279            append (bool): if `True`, add to any existing expressions.
    -2280                Otherwise, this flattens all the `Order` expression into a single expression.
    -2281            dialect (str): the dialect used to parse the input expression.
    -2282            copy (bool): if `False`, modify this expression instance in-place.
    -2283            opts (kwargs): other options to use to parse the input expressions.
    -2284
    -2285        Returns:
    -2286            Select: the modified expression.
    -2287        """
    -2288        return _apply_child_list_builder(
    -2289            *expressions,
    -2290            instance=self,
    -2291            arg="cluster",
    -2292            append=append,
    -2293            copy=copy,
    -2294            prefix="CLUSTER BY",
    -2295            into=Cluster,
    -2296            dialect=dialect,
    -2297            **opts,
    -2298        )
    +            
    2390    def cluster_by(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2391        """
    +2392        Set the CLUSTER BY expression.
    +2393
    +2394        Example:
    +2395            >>> Select().from_("tbl").select("x").cluster_by("x DESC").sql()
    +2396            'SELECT x FROM tbl CLUSTER BY x DESC'
    +2397
    +2398        Args:
    +2399            *expressions (str | Expression): the SQL code strings to parse.
    +2400                If a `Group` instance is passed, this is used as-is.
    +2401                If another `Expression` instance is passed, it will be wrapped in a `Cluster`.
    +2402            append (bool): if `True`, add to any existing expressions.
    +2403                Otherwise, this flattens all the `Order` expression into a single expression.
    +2404            dialect (str): the dialect used to parse the input expression.
    +2405            copy (bool): if `False`, modify this expression instance in-place.
    +2406            opts (kwargs): other options to use to parse the input expressions.
    +2407
    +2408        Returns:
    +2409            Select: the modified expression.
    +2410        """
    +2411        return _apply_child_list_builder(
    +2412            *expressions,
    +2413            instance=self,
    +2414            arg="cluster",
    +2415            append=append,
    +2416            copy=copy,
    +2417            prefix="CLUSTER BY",
    +2418            into=Cluster,
    +2419            dialect=dialect,
    +2420            **opts,
    +2421        )
     
    @@ -23248,36 +23750,36 @@ Otherwise, this flattens all the Order express
    -
    2300    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2301        """
    -2302        Set the LIMIT expression.
    -2303
    -2304        Example:
    -2305            >>> Select().from_("tbl").select("x").limit(10).sql()
    -2306            'SELECT x FROM tbl LIMIT 10'
    -2307
    -2308        Args:
    -2309            expression (str | int | Expression): the SQL code string to parse.
    -2310                This can also be an integer.
    -2311                If a `Limit` instance is passed, this is used as-is.
    -2312                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    -2313            dialect (str): the dialect used to parse the input expression.
    -2314            copy (bool): if `False`, modify this expression instance in-place.
    -2315            opts (kwargs): other options to use to parse the input expressions.
    -2316
    -2317        Returns:
    -2318            Select: the modified expression.
    -2319        """
    -2320        return _apply_builder(
    -2321            expression=expression,
    -2322            instance=self,
    -2323            arg="limit",
    -2324            into=Limit,
    -2325            prefix="LIMIT",
    -2326            dialect=dialect,
    -2327            copy=copy,
    -2328            **opts,
    -2329        )
    +            
    2423    def limit(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2424        """
    +2425        Set the LIMIT expression.
    +2426
    +2427        Example:
    +2428            >>> Select().from_("tbl").select("x").limit(10).sql()
    +2429            'SELECT x FROM tbl LIMIT 10'
    +2430
    +2431        Args:
    +2432            expression (str | int | Expression): the SQL code string to parse.
    +2433                This can also be an integer.
    +2434                If a `Limit` instance is passed, this is used as-is.
    +2435                If another `Expression` instance is passed, it will be wrapped in a `Limit`.
    +2436            dialect (str): the dialect used to parse the input expression.
    +2437            copy (bool): if `False`, modify this expression instance in-place.
    +2438            opts (kwargs): other options to use to parse the input expressions.
    +2439
    +2440        Returns:
    +2441            Select: the modified expression.
    +2442        """
    +2443        return _apply_builder(
    +2444            expression=expression,
    +2445            instance=self,
    +2446            arg="limit",
    +2447            into=Limit,
    +2448            prefix="LIMIT",
    +2449            dialect=dialect,
    +2450            copy=copy,
    +2451            **opts,
    +2452        )
     
    @@ -23325,36 +23827,36 @@ If another Expression instance is passed,
    -
    2331    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    -2332        """
    -2333        Set the OFFSET expression.
    -2334
    -2335        Example:
    -2336            >>> Select().from_("tbl").select("x").offset(10).sql()
    -2337            'SELECT x FROM tbl OFFSET 10'
    -2338
    -2339        Args:
    -2340            expression (str | int | Expression): the SQL code string to parse.
    -2341                This can also be an integer.
    -2342                If a `Offset` instance is passed, this is used as-is.
    -2343                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    -2344            dialect (str): the dialect used to parse the input expression.
    -2345            copy (bool): if `False`, modify this expression instance in-place.
    -2346            opts (kwargs): other options to use to parse the input expressions.
    -2347
    -2348        Returns:
    -2349            Select: the modified expression.
    -2350        """
    -2351        return _apply_builder(
    -2352            expression=expression,
    -2353            instance=self,
    -2354            arg="offset",
    -2355            into=Offset,
    -2356            prefix="OFFSET",
    -2357            dialect=dialect,
    -2358            copy=copy,
    -2359            **opts,
    -2360        )
    +            
    2454    def offset(self, expression, dialect=None, copy=True, **opts) -> Select:
    +2455        """
    +2456        Set the OFFSET expression.
    +2457
    +2458        Example:
    +2459            >>> Select().from_("tbl").select("x").offset(10).sql()
    +2460            'SELECT x FROM tbl OFFSET 10'
    +2461
    +2462        Args:
    +2463            expression (str | int | Expression): the SQL code string to parse.
    +2464                This can also be an integer.
    +2465                If a `Offset` instance is passed, this is used as-is.
    +2466                If another `Expression` instance is passed, it will be wrapped in a `Offset`.
    +2467            dialect (str): the dialect used to parse the input expression.
    +2468            copy (bool): if `False`, modify this expression instance in-place.
    +2469            opts (kwargs): other options to use to parse the input expressions.
    +2470
    +2471        Returns:
    +2472            Select: the modified expression.
    +2473        """
    +2474        return _apply_builder(
    +2475            expression=expression,
    +2476            instance=self,
    +2477            arg="offset",
    +2478            into=Offset,
    +2479            prefix="OFFSET",
    +2480            dialect=dialect,
    +2481            copy=copy,
    +2482            **opts,
    +2483        )
     
    @@ -23402,42 +23904,42 @@ If another Expression instance is passed,
    -
    2362    def select(
    -2363        self,
    -2364        *expressions: ExpOrStr,
    -2365        append: bool = True,
    -2366        dialect: DialectType = None,
    -2367        copy: bool = True,
    -2368        **opts,
    -2369    ) -> Select:
    -2370        """
    -2371        Append to or set the SELECT expressions.
    -2372
    -2373        Example:
    -2374            >>> Select().select("x", "y").sql()
    -2375            'SELECT x, y'
    -2376
    -2377        Args:
    -2378            *expressions: the SQL code strings to parse.
    -2379                If an `Expression` instance is passed, it will be used as-is.
    -2380            append: if `True`, add to any existing expressions.
    -2381                Otherwise, this resets the expressions.
    -2382            dialect: the dialect used to parse the input expressions.
    -2383            copy: if `False`, modify this expression instance in-place.
    -2384            opts: other options to use to parse the input expressions.
    -2385
    -2386        Returns:
    -2387            Select: the modified expression.
    -2388        """
    -2389        return _apply_list_builder(
    -2390            *expressions,
    -2391            instance=self,
    -2392            arg="expressions",
    -2393            append=append,
    -2394            dialect=dialect,
    -2395            copy=copy,
    -2396            **opts,
    -2397        )
    +            
    2485    def select(
    +2486        self,
    +2487        *expressions: ExpOrStr,
    +2488        append: bool = True,
    +2489        dialect: DialectType = None,
    +2490        copy: bool = True,
    +2491        **opts,
    +2492    ) -> Select:
    +2493        """
    +2494        Append to or set the SELECT expressions.
    +2495
    +2496        Example:
    +2497            >>> Select().select("x", "y").sql()
    +2498            'SELECT x, y'
    +2499
    +2500        Args:
    +2501            *expressions: the SQL code strings to parse.
    +2502                If an `Expression` instance is passed, it will be used as-is.
    +2503            append: if `True`, add to any existing expressions.
    +2504                Otherwise, this resets the expressions.
    +2505            dialect: the dialect used to parse the input expressions.
    +2506            copy: if `False`, modify this expression instance in-place.
    +2507            opts: other options to use to parse the input expressions.
    +2508
    +2509        Returns:
    +2510            Select: the modified expression.
    +2511        """
    +2512        return _apply_list_builder(
    +2513            *expressions,
    +2514            instance=self,
    +2515            arg="expressions",
    +2516            append=append,
    +2517            dialect=dialect,
    +2518            copy=copy,
    +2519            **opts,
    +2520        )
     
    @@ -23485,37 +23987,37 @@ Otherwise, this resets the expressions.
    -
    2399    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2400        """
    -2401        Append to or set the LATERAL expressions.
    -2402
    -2403        Example:
    -2404            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    -2405            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    -2406
    -2407        Args:
    -2408            *expressions (str | Expression): the SQL code strings to parse.
    -2409                If an `Expression` instance is passed, it will be used as-is.
    -2410            append (bool): if `True`, add to any existing expressions.
    -2411                Otherwise, this resets the expressions.
    -2412            dialect (str): the dialect used to parse the input expressions.
    -2413            copy (bool): if `False`, modify this expression instance in-place.
    -2414            opts (kwargs): other options to use to parse the input expressions.
    -2415
    -2416        Returns:
    -2417            Select: the modified expression.
    -2418        """
    -2419        return _apply_list_builder(
    -2420            *expressions,
    -2421            instance=self,
    -2422            arg="laterals",
    -2423            append=append,
    -2424            into=Lateral,
    -2425            prefix="LATERAL VIEW",
    -2426            dialect=dialect,
    -2427            copy=copy,
    -2428            **opts,
    -2429        )
    +            
    2522    def lateral(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2523        """
    +2524        Append to or set the LATERAL expressions.
    +2525
    +2526        Example:
    +2527            >>> Select().select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl").sql()
    +2528            'SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z'
    +2529
    +2530        Args:
    +2531            *expressions (str | Expression): the SQL code strings to parse.
    +2532                If an `Expression` instance is passed, it will be used as-is.
    +2533            append (bool): if `True`, add to any existing expressions.
    +2534                Otherwise, this resets the expressions.
    +2535            dialect (str): the dialect used to parse the input expressions.
    +2536            copy (bool): if `False`, modify this expression instance in-place.
    +2537            opts (kwargs): other options to use to parse the input expressions.
    +2538
    +2539        Returns:
    +2540            Select: the modified expression.
    +2541        """
    +2542        return _apply_list_builder(
    +2543            *expressions,
    +2544            instance=self,
    +2545            arg="laterals",
    +2546            append=append,
    +2547            into=Lateral,
    +2548            prefix="LATERAL VIEW",
    +2549            dialect=dialect,
    +2550            copy=copy,
    +2551            **opts,
    +2552        )
     
    @@ -23563,100 +24065,100 @@ Otherwise, this resets the expressions.
    -
    2431    def join(
    -2432        self,
    -2433        expression,
    -2434        on=None,
    -2435        using=None,
    -2436        append=True,
    -2437        join_type=None,
    -2438        join_alias=None,
    -2439        dialect=None,
    -2440        copy=True,
    -2441        **opts,
    -2442    ) -> Select:
    -2443        """
    -2444        Append to or set the JOIN expressions.
    -2445
    -2446        Example:
    -2447            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    -2448            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    -2449
    -2450            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    -2451            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    -2452
    -2453            Use `join_type` to change the type of join:
    -2454
    -2455            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    -2456            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    -2457
    -2458        Args:
    -2459            expression (str | Expression): the SQL code string to parse.
    -2460                If an `Expression` instance is passed, it will be used as-is.
    -2461            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    -2462                If an `Expression` instance is passed, it will be used as-is.
    -2463            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    -2464                If an `Expression` instance is passed, it will be used as-is.
    -2465            append (bool): if `True`, add to any existing expressions.
    -2466                Otherwise, this resets the expressions.
    -2467            join_type (str): If set, alter the parsed join type
    -2468            dialect (str): the dialect used to parse the input expressions.
    -2469            copy (bool): if `False`, modify this expression instance in-place.
    -2470            opts (kwargs): other options to use to parse the input expressions.
    -2471
    -2472        Returns:
    -2473            Select: the modified expression.
    -2474        """
    -2475        parse_args = {"dialect": dialect, **opts}
    -2476
    -2477        try:
    -2478            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    -2479        except ParseError:
    -2480            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    -2481
    -2482        join = expression if isinstance(expression, Join) else Join(this=expression)
    -2483
    -2484        if isinstance(join.this, Select):
    -2485            join.this.replace(join.this.subquery())
    -2486
    -2487        if join_type:
    -2488            natural: t.Optional[Token]
    -2489            side: t.Optional[Token]
    -2490            kind: t.Optional[Token]
    -2491
    -2492            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    -2493
    -2494            if natural:
    -2495                join.set("natural", True)
    -2496            if side:
    -2497                join.set("side", side.text)
    -2498            if kind:
    -2499                join.set("kind", kind.text)
    -2500
    -2501        if on:
    -2502            on = and_(*ensure_collection(on), dialect=dialect, **opts)
    -2503            join.set("on", on)
    -2504
    -2505        if using:
    -2506            join = _apply_list_builder(
    -2507                *ensure_collection(using),
    -2508                instance=join,
    -2509                arg="using",
    -2510                append=append,
    -2511                copy=copy,
    -2512                **opts,
    -2513            )
    -2514
    -2515        if join_alias:
    -2516            join.set("this", alias_(join.this, join_alias, table=True))
    -2517        return _apply_list_builder(
    -2518            join,
    -2519            instance=self,
    -2520            arg="joins",
    -2521            append=append,
    -2522            copy=copy,
    -2523            **opts,
    -2524        )
    +            
    2554    def join(
    +2555        self,
    +2556        expression,
    +2557        on=None,
    +2558        using=None,
    +2559        append=True,
    +2560        join_type=None,
    +2561        join_alias=None,
    +2562        dialect=None,
    +2563        copy=True,
    +2564        **opts,
    +2565    ) -> Select:
    +2566        """
    +2567        Append to or set the JOIN expressions.
    +2568
    +2569        Example:
    +2570            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y").sql()
    +2571            'SELECT * FROM tbl JOIN tbl2 ON tbl1.y = tbl2.y'
    +2572
    +2573            >>> Select().select("1").from_("a").join("b", using=["x", "y", "z"]).sql()
    +2574            'SELECT 1 FROM a JOIN b USING (x, y, z)'
    +2575
    +2576            Use `join_type` to change the type of join:
    +2577
    +2578            >>> Select().select("*").from_("tbl").join("tbl2", on="tbl1.y = tbl2.y", join_type="left outer").sql()
    +2579            'SELECT * FROM tbl LEFT OUTER JOIN tbl2 ON tbl1.y = tbl2.y'
    +2580
    +2581        Args:
    +2582            expression (str | Expression): the SQL code string to parse.
    +2583                If an `Expression` instance is passed, it will be used as-is.
    +2584            on (str | Expression): optionally specify the join "on" criteria as a SQL string.
    +2585                If an `Expression` instance is passed, it will be used as-is.
    +2586            using (str | Expression): optionally specify the join "using" criteria as a SQL string.
    +2587                If an `Expression` instance is passed, it will be used as-is.
    +2588            append (bool): if `True`, add to any existing expressions.
    +2589                Otherwise, this resets the expressions.
    +2590            join_type (str): If set, alter the parsed join type
    +2591            dialect (str): the dialect used to parse the input expressions.
    +2592            copy (bool): if `False`, modify this expression instance in-place.
    +2593            opts (kwargs): other options to use to parse the input expressions.
    +2594
    +2595        Returns:
    +2596            Select: the modified expression.
    +2597        """
    +2598        parse_args = {"dialect": dialect, **opts}
    +2599
    +2600        try:
    +2601            expression = maybe_parse(expression, into=Join, prefix="JOIN", **parse_args)
    +2602        except ParseError:
    +2603            expression = maybe_parse(expression, into=(Join, Expression), **parse_args)
    +2604
    +2605        join = expression if isinstance(expression, Join) else Join(this=expression)
    +2606
    +2607        if isinstance(join.this, Select):
    +2608            join.this.replace(join.this.subquery())
    +2609
    +2610        if join_type:
    +2611            natural: t.Optional[Token]
    +2612            side: t.Optional[Token]
    +2613            kind: t.Optional[Token]
    +2614
    +2615            natural, side, kind = maybe_parse(join_type, into="JOIN_TYPE", **parse_args)  # type: ignore
    +2616
    +2617            if natural:
    +2618                join.set("natural", True)
    +2619            if side:
    +2620                join.set("side", side.text)
    +2621            if kind:
    +2622                join.set("kind", kind.text)
    +2623
    +2624        if on:
    +2625            on = and_(*ensure_collection(on), dialect=dialect, copy=copy, **opts)
    +2626            join.set("on", on)
    +2627
    +2628        if using:
    +2629            join = _apply_list_builder(
    +2630                *ensure_collection(using),
    +2631                instance=join,
    +2632                arg="using",
    +2633                append=append,
    +2634                copy=copy,
    +2635                **opts,
    +2636            )
    +2637
    +2638        if join_alias:
    +2639            join.set("this", alias_(join.this, join_alias, table=True))
    +2640        return _apply_list_builder(
    +2641            join,
    +2642            instance=self,
    +2643            arg="joins",
    +2644            append=append,
    +2645            copy=copy,
    +2646            **opts,
    +2647        )
     
    @@ -23723,37 +24225,37 @@ Otherwise, this resets the expressions.
    -
    2526    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2527        """
    -2528        Append to or set the WHERE expressions.
    -2529
    -2530        Example:
    -2531            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    -2532            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    -2533
    -2534        Args:
    -2535            *expressions (str | Expression): the SQL code strings to parse.
    -2536                If an `Expression` instance is passed, it will be used as-is.
    -2537                Multiple expressions are combined with an AND operator.
    -2538            append (bool): if `True`, AND the new expressions to any existing expression.
    -2539                Otherwise, this resets the expression.
    -2540            dialect (str): the dialect used to parse the input expressions.
    -2541            copy (bool): if `False`, modify this expression instance in-place.
    -2542            opts (kwargs): other options to use to parse the input expressions.
    -2543
    -2544        Returns:
    -2545            Select: the modified expression.
    -2546        """
    -2547        return _apply_conjunction_builder(
    -2548            *expressions,
    -2549            instance=self,
    -2550            arg="where",
    -2551            append=append,
    -2552            into=Where,
    -2553            dialect=dialect,
    -2554            copy=copy,
    -2555            **opts,
    -2556        )
    +            
    2649    def where(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2650        """
    +2651        Append to or set the WHERE expressions.
    +2652
    +2653        Example:
    +2654            >>> Select().select("x").from_("tbl").where("x = 'a' OR x < 'b'").sql()
    +2655            "SELECT x FROM tbl WHERE x = 'a' OR x < 'b'"
    +2656
    +2657        Args:
    +2658            *expressions (str | Expression): the SQL code strings to parse.
    +2659                If an `Expression` instance is passed, it will be used as-is.
    +2660                Multiple expressions are combined with an AND operator.
    +2661            append (bool): if `True`, AND the new expressions to any existing expression.
    +2662                Otherwise, this resets the expression.
    +2663            dialect (str): the dialect used to parse the input expressions.
    +2664            copy (bool): if `False`, modify this expression instance in-place.
    +2665            opts (kwargs): other options to use to parse the input expressions.
    +2666
    +2667        Returns:
    +2668            Select: the modified expression.
    +2669        """
    +2670        return _apply_conjunction_builder(
    +2671            *expressions,
    +2672            instance=self,
    +2673            arg="where",
    +2674            append=append,
    +2675            into=Where,
    +2676            dialect=dialect,
    +2677            copy=copy,
    +2678            **opts,
    +2679        )
     
    @@ -23802,37 +24304,37 @@ Otherwise, this resets the expression.
    -
    2558    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2559        """
    -2560        Append to or set the HAVING expressions.
    -2561
    -2562        Example:
    -2563            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    -2564            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    -2565
    -2566        Args:
    -2567            *expressions (str | Expression): the SQL code strings to parse.
    -2568                If an `Expression` instance is passed, it will be used as-is.
    -2569                Multiple expressions are combined with an AND operator.
    -2570            append (bool): if `True`, AND the new expressions to any existing expression.
    -2571                Otherwise, this resets the expression.
    -2572            dialect (str): the dialect used to parse the input expressions.
    -2573            copy (bool): if `False`, modify this expression instance in-place.
    -2574            opts (kwargs): other options to use to parse the input expressions.
    -2575
    -2576        Returns:
    -2577            Select: the modified expression.
    -2578        """
    -2579        return _apply_conjunction_builder(
    -2580            *expressions,
    -2581            instance=self,
    -2582            arg="having",
    -2583            append=append,
    -2584            into=Having,
    -2585            dialect=dialect,
    -2586            copy=copy,
    -2587            **opts,
    -2588        )
    +            
    2681    def having(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2682        """
    +2683        Append to or set the HAVING expressions.
    +2684
    +2685        Example:
    +2686            >>> Select().select("x", "COUNT(y)").from_("tbl").group_by("x").having("COUNT(y) > 3").sql()
    +2687            'SELECT x, COUNT(y) FROM tbl GROUP BY x HAVING COUNT(y) > 3'
    +2688
    +2689        Args:
    +2690            *expressions (str | Expression): the SQL code strings to parse.
    +2691                If an `Expression` instance is passed, it will be used as-is.
    +2692                Multiple expressions are combined with an AND operator.
    +2693            append (bool): if `True`, AND the new expressions to any existing expression.
    +2694                Otherwise, this resets the expression.
    +2695            dialect (str): the dialect used to parse the input expressions.
    +2696            copy (bool): if `False`, modify this expression instance in-place.
    +2697            opts (kwargs): other options to use to parse the input expressions.
    +2698
    +2699        Returns:
    +2700            Select: the modified expression.
    +2701        """
    +2702        return _apply_conjunction_builder(
    +2703            *expressions,
    +2704            instance=self,
    +2705            arg="having",
    +2706            append=append,
    +2707            into=Having,
    +2708            dialect=dialect,
    +2709            copy=copy,
    +2710            **opts,
    +2711        )
     
    @@ -23881,17 +24383,17 @@ Otherwise, this resets the expression.
    -
    2590    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2591        return _apply_list_builder(
    -2592            *expressions,
    -2593            instance=self,
    -2594            arg="windows",
    -2595            append=append,
    -2596            into=Window,
    -2597            dialect=dialect,
    -2598            copy=copy,
    -2599            **opts,
    -2600        )
    +            
    2713    def window(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2714        return _apply_list_builder(
    +2715            *expressions,
    +2716            instance=self,
    +2717            arg="windows",
    +2718            append=append,
    +2719            into=Window,
    +2720            dialect=dialect,
    +2721            copy=copy,
    +2722            **opts,
    +2723        )
     
    @@ -23909,17 +24411,17 @@ Otherwise, this resets the expression.
    -
    2602    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    -2603        return _apply_conjunction_builder(
    -2604            *expressions,
    -2605            instance=self,
    -2606            arg="qualify",
    -2607            append=append,
    -2608            into=Qualify,
    -2609            dialect=dialect,
    -2610            copy=copy,
    -2611            **opts,
    -2612        )
    +            
    2725    def qualify(self, *expressions, append=True, dialect=None, copy=True, **opts) -> Select:
    +2726        return _apply_conjunction_builder(
    +2727            *expressions,
    +2728            instance=self,
    +2729            arg="qualify",
    +2730            append=append,
    +2731            into=Qualify,
    +2732            dialect=dialect,
    +2733            copy=copy,
    +2734            **opts,
    +2735        )
     
    @@ -23931,30 +24433,32 @@ Otherwise, this resets the expression.
    def - distinct(self, distinct=True, copy=True) -> sqlglot.expressions.Select: + distinct( self, *ons: Union[str, sqlglot.expressions.Expression], distinct: bool = True, copy: bool = True) -> sqlglot.expressions.Select:
    -
    2614    def distinct(self, distinct=True, copy=True) -> Select:
    -2615        """
    -2616        Set the OFFSET expression.
    -2617
    -2618        Example:
    -2619            >>> Select().from_("tbl").select("x").distinct().sql()
    -2620            'SELECT DISTINCT x FROM tbl'
    -2621
    -2622        Args:
    -2623            distinct (bool): whether the Select should be distinct
    -2624            copy (bool): if `False`, modify this expression instance in-place.
    -2625
    -2626        Returns:
    -2627            Select: the modified expression.
    -2628        """
    -2629        instance = _maybe_copy(self, copy)
    -2630        instance.set("distinct", Distinct() if distinct else None)
    -2631        return instance
    +            
    2737    def distinct(self, *ons: ExpOrStr, distinct: bool = True, copy: bool = True) -> Select:
    +2738        """
    +2739        Set the OFFSET expression.
    +2740
    +2741        Example:
    +2742            >>> Select().from_("tbl").select("x").distinct().sql()
    +2743            'SELECT DISTINCT x FROM tbl'
    +2744
    +2745        Args:
    +2746            ons: the expressions to distinct on
    +2747            distinct: whether the Select should be distinct
    +2748            copy: if `False`, modify this expression instance in-place.
    +2749
    +2750        Returns:
    +2751            Select: the modified expression.
    +2752        """
    +2753        instance = _maybe_copy(self, copy)
    +2754        on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons]) if ons else None
    +2755        instance.set("distinct", Distinct(on=on) if distinct else None)
    +2756        return instance
     
    @@ -23973,8 +24477,9 @@ Otherwise, this resets the expression.
    Arguments:
      -
    • distinct (bool): whether the Select should be distinct
    • -
    • copy (bool): if False, modify this expression instance in-place.
    • +
    • ons: the expressions to distinct on
    • +
    • distinct: whether the Select should be distinct
    • +
    • copy: if False, modify this expression instance in-place.
    Returns:
    @@ -23997,42 +24502,42 @@ Otherwise, this resets the expression.
    -
    2633    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    -2634        """
    -2635        Convert this expression to a CREATE TABLE AS statement.
    -2636
    -2637        Example:
    -2638            >>> Select().select("*").from_("tbl").ctas("x").sql()
    -2639            'CREATE TABLE x AS SELECT * FROM tbl'
    -2640
    -2641        Args:
    -2642            table (str | Expression): the SQL code string to parse as the table name.
    -2643                If another `Expression` instance is passed, it will be used as-is.
    -2644            properties (dict): an optional mapping of table properties
    -2645            dialect (str): the dialect used to parse the input table.
    -2646            copy (bool): if `False`, modify this expression instance in-place.
    -2647            opts (kwargs): other options to use to parse the input table.
    -2648
    -2649        Returns:
    -2650            Create: the CREATE TABLE AS expression
    -2651        """
    -2652        instance = _maybe_copy(self, copy)
    -2653        table_expression = maybe_parse(
    -2654            table,
    -2655            into=Table,
    -2656            dialect=dialect,
    -2657            **opts,
    -2658        )
    -2659        properties_expression = None
    -2660        if properties:
    -2661            properties_expression = Properties.from_dict(properties)
    -2662
    -2663        return Create(
    -2664            this=table_expression,
    -2665            kind="table",
    -2666            expression=instance,
    -2667            properties=properties_expression,
    -2668        )
    +            
    2758    def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create:
    +2759        """
    +2760        Convert this expression to a CREATE TABLE AS statement.
    +2761
    +2762        Example:
    +2763            >>> Select().select("*").from_("tbl").ctas("x").sql()
    +2764            'CREATE TABLE x AS SELECT * FROM tbl'
    +2765
    +2766        Args:
    +2767            table (str | Expression): the SQL code string to parse as the table name.
    +2768                If another `Expression` instance is passed, it will be used as-is.
    +2769            properties (dict): an optional mapping of table properties
    +2770            dialect (str): the dialect used to parse the input table.
    +2771            copy (bool): if `False`, modify this expression instance in-place.
    +2772            opts (kwargs): other options to use to parse the input table.
    +2773
    +2774        Returns:
    +2775            Create: the CREATE TABLE AS expression
    +2776        """
    +2777        instance = _maybe_copy(self, copy)
    +2778        table_expression = maybe_parse(
    +2779            table,
    +2780            into=Table,
    +2781            dialect=dialect,
    +2782            **opts,
    +2783        )
    +2784        properties_expression = None
    +2785        if properties:
    +2786            properties_expression = Properties.from_dict(properties)
    +2787
    +2788        return Create(
    +2789            this=table_expression,
    +2790            kind="table",
    +2791            expression=instance,
    +2792            properties=properties_expression,
    +2793        )
     
    @@ -24079,29 +24584,29 @@ If another Expression instance is passed,
    -
    2670    def lock(self, update: bool = True, copy: bool = True) -> Select:
    -2671        """
    -2672        Set the locking read mode for this expression.
    -2673
    -2674        Examples:
    -2675            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    -2676            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    -2677
    -2678            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    -2679            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    -2680
    -2681        Args:
    -2682            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    -2683            copy: if `False`, modify this expression instance in-place.
    -2684
    -2685        Returns:
    -2686            The modified expression.
    -2687        """
    -2688
    -2689        inst = _maybe_copy(self, copy)
    -2690        inst.set("lock", Lock(update=update))
    -2691
    -2692        return inst
    +            
    2795    def lock(self, update: bool = True, copy: bool = True) -> Select:
    +2796        """
    +2797        Set the locking read mode for this expression.
    +2798
    +2799        Examples:
    +2800            >>> Select().select("x").from_("tbl").where("x = 'a'").lock().sql("mysql")
    +2801            "SELECT x FROM tbl WHERE x = 'a' FOR UPDATE"
    +2802
    +2803            >>> Select().select("x").from_("tbl").where("x = 'a'").lock(update=False).sql("mysql")
    +2804            "SELECT x FROM tbl WHERE x = 'a' FOR SHARE"
    +2805
    +2806        Args:
    +2807            update: if `True`, the locking type will be `FOR UPDATE`, else it will be `FOR SHARE`.
    +2808            copy: if `False`, modify this expression instance in-place.
    +2809
    +2810        Returns:
    +2811            The modified expression.
    +2812        """
    +2813
    +2814        inst = _maybe_copy(self, copy)
    +2815        inst.set("lock", Lock(update=update))
    +2816
    +2817        return inst
     
    @@ -24219,30 +24724,30 @@ If another Expression instance is passed,
    -
    2707class Subquery(DerivedTable, Unionable):
    -2708    arg_types = {
    -2709        "this": True,
    -2710        "alias": False,
    -2711        "with": False,
    -2712        **QUERY_MODIFIERS,
    -2713    }
    -2714
    -2715    def unnest(self):
    -2716        """
    -2717        Returns the first non subquery.
    -2718        """
    -2719        expression = self
    -2720        while isinstance(expression, Subquery):
    -2721            expression = expression.this
    -2722        return expression
    -2723
    -2724    @property
    -2725    def is_star(self) -> bool:
    -2726        return self.this.is_star
    -2727
    -2728    @property
    -2729    def output_name(self):
    -2730        return self.alias
    +            
    2832class Subquery(DerivedTable, Unionable):
    +2833    arg_types = {
    +2834        "this": True,
    +2835        "alias": False,
    +2836        "with": False,
    +2837        **QUERY_MODIFIERS,
    +2838    }
    +2839
    +2840    def unnest(self):
    +2841        """
    +2842        Returns the first non subquery.
    +2843        """
    +2844        expression = self
    +2845        while isinstance(expression, Subquery):
    +2846            expression = expression.this
    +2847        return expression
    +2848
    +2849    @property
    +2850    def is_star(self) -> bool:
    +2851        return self.this.is_star
    +2852
    +2853    @property
    +2854    def output_name(self):
    +2855        return self.alias
     
    @@ -24259,14 +24764,14 @@ If another Expression instance is passed,
    -
    2715    def unnest(self):
    -2716        """
    -2717        Returns the first non subquery.
    -2718        """
    -2719        expression = self
    -2720        while isinstance(expression, Subquery):
    -2721            expression = expression.this
    -2722        return expression
    +            
    2840    def unnest(self):
    +2841        """
    +2842        Returns the first non subquery.
    +2843        """
    +2844        expression = self
    +2845        while isinstance(expression, Subquery):
    +2846            expression = expression.this
    +2847        return expression
     
    @@ -24378,19 +24883,19 @@ If another Expression instance is passed,
    -
    2733class TableSample(Expression):
    -2734    arg_types = {
    -2735        "this": False,
    -2736        "method": False,
    -2737        "bucket_numerator": False,
    -2738        "bucket_denominator": False,
    -2739        "bucket_field": False,
    -2740        "percent": False,
    -2741        "rows": False,
    -2742        "size": False,
    -2743        "seed": False,
    -2744        "kind": False,
    -2745    }
    +            
    2858class TableSample(Expression):
    +2859    arg_types = {
    +2860        "this": False,
    +2861        "method": False,
    +2862        "bucket_numerator": False,
    +2863        "bucket_denominator": False,
    +2864        "bucket_field": False,
    +2865        "percent": False,
    +2866        "rows": False,
    +2867        "size": False,
    +2868        "seed": False,
    +2869        "kind": False,
    +2870    }
     
    @@ -24453,14 +24958,14 @@ If another Expression instance is passed,
    -
    2748class Tag(Expression):
    -2749    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    -2750
    -2751    arg_types = {
    -2752        "this": False,
    -2753        "prefix": False,
    -2754        "postfix": False,
    -2755    }
    +            
    2873class Tag(Expression):
    +2874    """Tags are used for generating arbitrary sql like SELECT <span>x</span>."""
    +2875
    +2876    arg_types = {
    +2877        "this": False,
    +2878        "prefix": False,
    +2879        "postfix": False,
    +2880    }
     
    @@ -24525,15 +25030,15 @@ If another Expression instance is passed,
    -
    2758class Pivot(Expression):
    -2759    arg_types = {
    -2760        "this": False,
    -2761        "alias": False,
    -2762        "expressions": True,
    -2763        "field": True,
    -2764        "unpivot": True,
    -2765        "columns": False,
    -2766    }
    +            
    2883class Pivot(Expression):
    +2884    arg_types = {
    +2885        "this": False,
    +2886        "alias": False,
    +2887        "expressions": True,
    +2888        "field": True,
    +2889        "unpivot": True,
    +2890        "columns": False,
    +2891    }
     
    @@ -24596,14 +25101,16 @@ If another Expression instance is passed,
    -
    2769class Window(Expression):
    -2770    arg_types = {
    -2771        "this": True,
    -2772        "partition_by": False,
    -2773        "order": False,
    -2774        "spec": False,
    -2775        "alias": False,
    -2776    }
    +            
    2894class Window(Expression):
    +2895    arg_types = {
    +2896        "this": True,
    +2897        "partition_by": False,
    +2898        "order": False,
    +2899        "spec": False,
    +2900        "alias": False,
    +2901        "over": False,
    +2902        "first": False,
    +2903    }
     
    @@ -24666,14 +25173,14 @@ If another Expression instance is passed,
    -
    2779class WindowSpec(Expression):
    -2780    arg_types = {
    -2781        "kind": False,
    -2782        "start": False,
    -2783        "start_side": False,
    -2784        "end": False,
    -2785        "end_side": False,
    -2786    }
    +            
    2906class WindowSpec(Expression):
    +2907    arg_types = {
    +2908        "kind": False,
    +2909        "start": False,
    +2910        "start_side": False,
    +2911        "end": False,
    +2912        "end_side": False,
    +2913    }
     
    @@ -24736,8 +25243,8 @@ If another Expression instance is passed,
    -
    2789class Where(Expression):
    -2790    pass
    +            
    2916class Where(Expression):
    +2917    pass
     
    @@ -24800,16 +25307,16 @@ If another Expression instance is passed,
    -
    2793class Star(Expression):
    -2794    arg_types = {"except": False, "replace": False}
    -2795
    -2796    @property
    -2797    def name(self) -> str:
    -2798        return "*"
    -2799
    -2800    @property
    -2801    def output_name(self):
    -2802        return self.name
    +            
    2920class Star(Expression):
    +2921    arg_types = {"except": False, "replace": False}
    +2922
    +2923    @property
    +2924    def name(self) -> str:
    +2925        return "*"
    +2926
    +2927    @property
    +2928    def output_name(self):
    +2929        return self.name
     
    @@ -24901,8 +25408,8 @@ If another Expression instance is passed,
    -
    2805class Parameter(Expression):
    -2806    arg_types = {"this": True, "wrapped": False}
    +            
    2932class Parameter(Expression):
    +2933    arg_types = {"this": True, "wrapped": False}
     
    @@ -24965,8 +25472,8 @@ If another Expression instance is passed,
    -
    2809class SessionParameter(Expression):
    -2810    arg_types = {"this": True, "kind": False}
    +            
    2936class SessionParameter(Expression):
    +2937    arg_types = {"this": True, "kind": False}
     
    @@ -25029,8 +25536,8 @@ If another Expression instance is passed,
    -
    2813class Placeholder(Expression):
    -2814    arg_types = {"this": False}
    +            
    2940class Placeholder(Expression):
    +2941    arg_types = {"this": False}
     
    @@ -25093,12 +25600,12 @@ If another Expression instance is passed,
    -
    2817class Null(Condition):
    -2818    arg_types: t.Dict[str, t.Any] = {}
    -2819
    -2820    @property
    -2821    def name(self) -> str:
    -2822        return "NULL"
    +            
    2944class Null(Condition):
    +2945    arg_types: t.Dict[str, t.Any] = {}
    +2946
    +2947    @property
    +2948    def name(self) -> str:
    +2949        return "NULL"
     
    @@ -25151,6 +25658,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -25167,8 +25681,8 @@ If another Expression instance is passed,
    -
    2825class Boolean(Condition):
    -2826    pass
    +            
    2952class Boolean(Condition):
    +2953    pass
     
    @@ -25221,6 +25735,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -25237,128 +25758,128 @@ If another Expression instance is passed, -
    2829class DataType(Expression):
    -2830    arg_types = {
    -2831        "this": True,
    -2832        "expressions": False,
    -2833        "nested": False,
    -2834        "values": False,
    -2835        "prefix": False,
    -2836    }
    -2837
    -2838    class Type(AutoName):
    -2839        CHAR = auto()
    -2840        NCHAR = auto()
    -2841        VARCHAR = auto()
    -2842        NVARCHAR = auto()
    -2843        TEXT = auto()
    -2844        MEDIUMTEXT = auto()
    -2845        LONGTEXT = auto()
    -2846        MEDIUMBLOB = auto()
    -2847        LONGBLOB = auto()
    -2848        BINARY = auto()
    -2849        VARBINARY = auto()
    -2850        INT = auto()
    -2851        UINT = auto()
    -2852        TINYINT = auto()
    -2853        UTINYINT = auto()
    -2854        SMALLINT = auto()
    -2855        USMALLINT = auto()
    -2856        BIGINT = auto()
    -2857        UBIGINT = auto()
    -2858        FLOAT = auto()
    -2859        DOUBLE = auto()
    -2860        DECIMAL = auto()
    -2861        BIGDECIMAL = auto()
    -2862        BIT = auto()
    -2863        BOOLEAN = auto()
    -2864        JSON = auto()
    -2865        JSONB = auto()
    -2866        INTERVAL = auto()
    -2867        TIME = auto()
    -2868        TIMESTAMP = auto()
    -2869        TIMESTAMPTZ = auto()
    -2870        TIMESTAMPLTZ = auto()
    -2871        DATE = auto()
    -2872        DATETIME = auto()
    -2873        ARRAY = auto()
    -2874        MAP = auto()
    -2875        UUID = auto()
    -2876        GEOGRAPHY = auto()
    -2877        GEOMETRY = auto()
    -2878        STRUCT = auto()
    -2879        NULLABLE = auto()
    -2880        HLLSKETCH = auto()
    -2881        HSTORE = auto()
    -2882        SUPER = auto()
    -2883        SERIAL = auto()
    -2884        SMALLSERIAL = auto()
    -2885        BIGSERIAL = auto()
    -2886        XML = auto()
    -2887        UNIQUEIDENTIFIER = auto()
    -2888        MONEY = auto()
    -2889        SMALLMONEY = auto()
    -2890        ROWVERSION = auto()
    -2891        IMAGE = auto()
    -2892        VARIANT = auto()
    -2893        OBJECT = auto()
    -2894        INET = auto()
    -2895        NULL = auto()
    -2896        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    -2897
    -2898    TEXT_TYPES = {
    -2899        Type.CHAR,
    -2900        Type.NCHAR,
    -2901        Type.VARCHAR,
    -2902        Type.NVARCHAR,
    -2903        Type.TEXT,
    -2904    }
    -2905
    -2906    INTEGER_TYPES = {
    -2907        Type.INT,
    -2908        Type.TINYINT,
    -2909        Type.SMALLINT,
    -2910        Type.BIGINT,
    -2911    }
    -2912
    -2913    FLOAT_TYPES = {
    -2914        Type.FLOAT,
    -2915        Type.DOUBLE,
    -2916    }
    -2917
    -2918    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    -2919
    -2920    TEMPORAL_TYPES = {
    -2921        Type.TIMESTAMP,
    -2922        Type.TIMESTAMPTZ,
    -2923        Type.TIMESTAMPLTZ,
    -2924        Type.DATE,
    -2925        Type.DATETIME,
    -2926    }
    -2927
    -2928    @classmethod
    -2929    def build(
    -2930        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2931    ) -> DataType:
    -2932        from sqlglot import parse_one
    -2933
    -2934        if isinstance(dtype, str):
    -2935            if dtype.upper() in cls.Type.__members__:
    -2936                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2937            else:
    -2938                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2939            if data_type_exp is None:
    -2940                raise ValueError(f"Unparsable data type value: {dtype}")
    -2941        elif isinstance(dtype, DataType.Type):
    -2942            data_type_exp = DataType(this=dtype)
    -2943        elif isinstance(dtype, DataType):
    -2944            return dtype
    -2945        else:
    -2946            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2947        return DataType(**{**data_type_exp.args, **kwargs})
    -2948
    -2949    def is_type(self, dtype: DataType.Type) -> bool:
    -2950        return self.this == dtype
    +            
    2956class DataType(Expression):
    +2957    arg_types = {
    +2958        "this": True,
    +2959        "expressions": False,
    +2960        "nested": False,
    +2961        "values": False,
    +2962        "prefix": False,
    +2963    }
    +2964
    +2965    class Type(AutoName):
    +2966        CHAR = auto()
    +2967        NCHAR = auto()
    +2968        VARCHAR = auto()
    +2969        NVARCHAR = auto()
    +2970        TEXT = auto()
    +2971        MEDIUMTEXT = auto()
    +2972        LONGTEXT = auto()
    +2973        MEDIUMBLOB = auto()
    +2974        LONGBLOB = auto()
    +2975        BINARY = auto()
    +2976        VARBINARY = auto()
    +2977        INT = auto()
    +2978        UINT = auto()
    +2979        TINYINT = auto()
    +2980        UTINYINT = auto()
    +2981        SMALLINT = auto()
    +2982        USMALLINT = auto()
    +2983        BIGINT = auto()
    +2984        UBIGINT = auto()
    +2985        FLOAT = auto()
    +2986        DOUBLE = auto()
    +2987        DECIMAL = auto()
    +2988        BIGDECIMAL = auto()
    +2989        BIT = auto()
    +2990        BOOLEAN = auto()
    +2991        JSON = auto()
    +2992        JSONB = auto()
    +2993        INTERVAL = auto()
    +2994        TIME = auto()
    +2995        TIMESTAMP = auto()
    +2996        TIMESTAMPTZ = auto()
    +2997        TIMESTAMPLTZ = auto()
    +2998        DATE = auto()
    +2999        DATETIME = auto()
    +3000        ARRAY = auto()
    +3001        MAP = auto()
    +3002        UUID = auto()
    +3003        GEOGRAPHY = auto()
    +3004        GEOMETRY = auto()
    +3005        STRUCT = auto()
    +3006        NULLABLE = auto()
    +3007        HLLSKETCH = auto()
    +3008        HSTORE = auto()
    +3009        SUPER = auto()
    +3010        SERIAL = auto()
    +3011        SMALLSERIAL = auto()
    +3012        BIGSERIAL = auto()
    +3013        XML = auto()
    +3014        UNIQUEIDENTIFIER = auto()
    +3015        MONEY = auto()
    +3016        SMALLMONEY = auto()
    +3017        ROWVERSION = auto()
    +3018        IMAGE = auto()
    +3019        VARIANT = auto()
    +3020        OBJECT = auto()
    +3021        INET = auto()
    +3022        NULL = auto()
    +3023        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    +3024
    +3025    TEXT_TYPES = {
    +3026        Type.CHAR,
    +3027        Type.NCHAR,
    +3028        Type.VARCHAR,
    +3029        Type.NVARCHAR,
    +3030        Type.TEXT,
    +3031    }
    +3032
    +3033    INTEGER_TYPES = {
    +3034        Type.INT,
    +3035        Type.TINYINT,
    +3036        Type.SMALLINT,
    +3037        Type.BIGINT,
    +3038    }
    +3039
    +3040    FLOAT_TYPES = {
    +3041        Type.FLOAT,
    +3042        Type.DOUBLE,
    +3043    }
    +3044
    +3045    NUMERIC_TYPES = {*INTEGER_TYPES, *FLOAT_TYPES}
    +3046
    +3047    TEMPORAL_TYPES = {
    +3048        Type.TIMESTAMP,
    +3049        Type.TIMESTAMPTZ,
    +3050        Type.TIMESTAMPLTZ,
    +3051        Type.DATE,
    +3052        Type.DATETIME,
    +3053    }
    +3054
    +3055    @classmethod
    +3056    def build(
    +3057        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +3058    ) -> DataType:
    +3059        from sqlglot import parse_one
    +3060
    +3061        if isinstance(dtype, str):
    +3062            if dtype.upper() in cls.Type.__members__:
    +3063                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +3064            else:
    +3065                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +3066            if data_type_exp is None:
    +3067                raise ValueError(f"Unparsable data type value: {dtype}")
    +3068        elif isinstance(dtype, DataType.Type):
    +3069            data_type_exp = DataType(this=dtype)
    +3070        elif isinstance(dtype, DataType):
    +3071            return dtype
    +3072        else:
    +3073            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +3074        return DataType(**{**data_type_exp.args, **kwargs})
    +3075
    +3076    def is_type(self, dtype: DataType.Type) -> bool:
    +3077        return self.this == dtype
     
    @@ -25376,26 +25897,26 @@ If another Expression instance is passed,
    -
    2928    @classmethod
    -2929    def build(
    -2930        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    -2931    ) -> DataType:
    -2932        from sqlglot import parse_one
    -2933
    -2934        if isinstance(dtype, str):
    -2935            if dtype.upper() in cls.Type.__members__:
    -2936                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    -2937            else:
    -2938                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    -2939            if data_type_exp is None:
    -2940                raise ValueError(f"Unparsable data type value: {dtype}")
    -2941        elif isinstance(dtype, DataType.Type):
    -2942            data_type_exp = DataType(this=dtype)
    -2943        elif isinstance(dtype, DataType):
    -2944            return dtype
    -2945        else:
    -2946            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    -2947        return DataType(**{**data_type_exp.args, **kwargs})
    +            
    3055    @classmethod
    +3056    def build(
    +3057        cls, dtype: str | DataType | DataType.Type, dialect: DialectType = None, **kwargs
    +3058    ) -> DataType:
    +3059        from sqlglot import parse_one
    +3060
    +3061        if isinstance(dtype, str):
    +3062            if dtype.upper() in cls.Type.__members__:
    +3063                data_type_exp: t.Optional[Expression] = DataType(this=DataType.Type[dtype.upper()])
    +3064            else:
    +3065                data_type_exp = parse_one(dtype, read=dialect, into=DataType)
    +3066            if data_type_exp is None:
    +3067                raise ValueError(f"Unparsable data type value: {dtype}")
    +3068        elif isinstance(dtype, DataType.Type):
    +3069            data_type_exp = DataType(this=dtype)
    +3070        elif isinstance(dtype, DataType):
    +3071            return dtype
    +3072        else:
    +3073            raise ValueError(f"Invalid data type: {type(dtype)}. Expected str or DataType.Type")
    +3074        return DataType(**{**data_type_exp.args, **kwargs})
     
    @@ -25413,8 +25934,8 @@ If another Expression instance is passed,
    -
    2949    def is_type(self, dtype: DataType.Type) -> bool:
    -2950        return self.this == dtype
    +            
    3076    def is_type(self, dtype: DataType.Type) -> bool:
    +3077        return self.this == dtype
     
    @@ -25478,65 +25999,65 @@ If another Expression instance is passed,
    -
    2838    class Type(AutoName):
    -2839        CHAR = auto()
    -2840        NCHAR = auto()
    -2841        VARCHAR = auto()
    -2842        NVARCHAR = auto()
    -2843        TEXT = auto()
    -2844        MEDIUMTEXT = auto()
    -2845        LONGTEXT = auto()
    -2846        MEDIUMBLOB = auto()
    -2847        LONGBLOB = auto()
    -2848        BINARY = auto()
    -2849        VARBINARY = auto()
    -2850        INT = auto()
    -2851        UINT = auto()
    -2852        TINYINT = auto()
    -2853        UTINYINT = auto()
    -2854        SMALLINT = auto()
    -2855        USMALLINT = auto()
    -2856        BIGINT = auto()
    -2857        UBIGINT = auto()
    -2858        FLOAT = auto()
    -2859        DOUBLE = auto()
    -2860        DECIMAL = auto()
    -2861        BIGDECIMAL = auto()
    -2862        BIT = auto()
    -2863        BOOLEAN = auto()
    -2864        JSON = auto()
    -2865        JSONB = auto()
    -2866        INTERVAL = auto()
    -2867        TIME = auto()
    -2868        TIMESTAMP = auto()
    -2869        TIMESTAMPTZ = auto()
    -2870        TIMESTAMPLTZ = auto()
    -2871        DATE = auto()
    -2872        DATETIME = auto()
    -2873        ARRAY = auto()
    -2874        MAP = auto()
    -2875        UUID = auto()
    -2876        GEOGRAPHY = auto()
    -2877        GEOMETRY = auto()
    -2878        STRUCT = auto()
    -2879        NULLABLE = auto()
    -2880        HLLSKETCH = auto()
    -2881        HSTORE = auto()
    -2882        SUPER = auto()
    -2883        SERIAL = auto()
    -2884        SMALLSERIAL = auto()
    -2885        BIGSERIAL = auto()
    -2886        XML = auto()
    -2887        UNIQUEIDENTIFIER = auto()
    -2888        MONEY = auto()
    -2889        SMALLMONEY = auto()
    -2890        ROWVERSION = auto()
    -2891        IMAGE = auto()
    -2892        VARIANT = auto()
    -2893        OBJECT = auto()
    -2894        INET = auto()
    -2895        NULL = auto()
    -2896        UNKNOWN = auto()  # Sentinel value, useful for type annotation
    +            
    2965    class Type(AutoName):
    +2966        CHAR = auto()
    +2967        NCHAR = auto()
    +2968        VARCHAR = auto()
    +2969        NVARCHAR = auto()
    +2970        TEXT = auto()
    +2971        MEDIUMTEXT = auto()
    +2972        LONGTEXT = auto()
    +2973        MEDIUMBLOB = auto()
    +2974        LONGBLOB = auto()
    +2975        BINARY = auto()
    +2976        VARBINARY = auto()
    +2977        INT = auto()
    +2978        UINT = auto()
    +2979        TINYINT = auto()
    +2980        UTINYINT = auto()
    +2981        SMALLINT = auto()
    +2982        USMALLINT = auto()
    +2983        BIGINT = auto()
    +2984        UBIGINT = auto()
    +2985        FLOAT = auto()
    +2986        DOUBLE = auto()
    +2987        DECIMAL = auto()
    +2988        BIGDECIMAL = auto()
    +2989        BIT = auto()
    +2990        BOOLEAN = auto()
    +2991        JSON = auto()
    +2992        JSONB = auto()
    +2993        INTERVAL = auto()
    +2994        TIME = auto()
    +2995        TIMESTAMP = auto()
    +2996        TIMESTAMPTZ = auto()
    +2997        TIMESTAMPLTZ = auto()
    +2998        DATE = auto()
    +2999        DATETIME = auto()
    +3000        ARRAY = auto()
    +3001        MAP = auto()
    +3002        UUID = auto()
    +3003        GEOGRAPHY = auto()
    +3004        GEOMETRY = auto()
    +3005        STRUCT = auto()
    +3006        NULLABLE = auto()
    +3007        HLLSKETCH = auto()
    +3008        HSTORE = auto()
    +3009        SUPER = auto()
    +3010        SERIAL = auto()
    +3011        SMALLSERIAL = auto()
    +3012        BIGSERIAL = auto()
    +3013        XML = auto()
    +3014        UNIQUEIDENTIFIER = auto()
    +3015        MONEY = auto()
    +3016        SMALLMONEY = auto()
    +3017        ROWVERSION = auto()
    +3018        IMAGE = auto()
    +3019        VARIANT = auto()
    +3020        OBJECT = auto()
    +3021        INET = auto()
    +3022        NULL = auto()
    +3023        UNKNOWN = auto()  # Sentinel value, useful for type annotation
     
    @@ -26262,8 +26783,8 @@ If another Expression instance is passed,
    -
    2954class PseudoType(Expression):
    -2955    pass
    +            
    3081class PseudoType(Expression):
    +3082    pass
     
    @@ -26326,8 +26847,8 @@ If another Expression instance is passed,
    -
    2958class StructKwarg(Expression):
    -2959    arg_types = {"this": True, "expression": True}
    +            
    3085class StructKwarg(Expression):
    +3086    arg_types = {"this": True, "expression": True}
     
    @@ -26390,8 +26911,8 @@ If another Expression instance is passed,
    -
    2963class SubqueryPredicate(Predicate):
    -2964    pass
    +            
    3090class SubqueryPredicate(Predicate):
    +3091    pass
     
    @@ -26444,6 +26965,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -26460,8 +26988,8 @@ If another Expression instance is passed, -
    2967class All(SubqueryPredicate):
    -2968    pass
    +            
    3094class All(SubqueryPredicate):
    +3095    pass
     
    @@ -26514,6 +27042,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -26530,8 +27065,8 @@ If another Expression instance is passed, -
    2971class Any(SubqueryPredicate):
    -2972    pass
    +            
    3098class Any(SubqueryPredicate):
    +3099    pass
     
    @@ -26584,6 +27119,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -26600,8 +27142,8 @@ If another Expression instance is passed, -
    2975class Exists(SubqueryPredicate):
    -2976    pass
    +            
    3102class Exists(SubqueryPredicate):
    +3103    pass
     
    @@ -26654,6 +27196,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -26670,8 +27219,8 @@ If another Expression instance is passed, -
    2981class Command(Expression):
    -2982    arg_types = {"this": True, "expression": False}
    +            
    3108class Command(Expression):
    +3109    arg_types = {"this": True, "expression": False}
     
    @@ -26734,8 +27283,8 @@ If another Expression instance is passed,
    -
    2985class Transaction(Expression):
    -2986    arg_types = {"this": False, "modes": False}
    +            
    3112class Transaction(Expression):
    +3113    arg_types = {"this": False, "modes": False}
     
    @@ -26798,8 +27347,8 @@ If another Expression instance is passed,
    -
    2989class Commit(Expression):
    -2990    arg_types = {"chain": False}
    +            
    3116class Commit(Expression):
    +3117    arg_types = {"chain": False}
     
    @@ -26862,8 +27411,8 @@ If another Expression instance is passed,
    -
    2993class Rollback(Expression):
    -2994    arg_types = {"savepoint": False}
    +            
    3120class Rollback(Expression):
    +3121    arg_types = {"savepoint": False}
     
    @@ -26926,8 +27475,8 @@ If another Expression instance is passed,
    -
    2997class AlterTable(Expression):
    -2998    arg_types = {"this": True, "actions": True, "exists": False}
    +            
    3124class AlterTable(Expression):
    +3125    arg_types = {"this": True, "actions": True, "exists": False}
     
    @@ -26990,8 +27539,8 @@ If another Expression instance is passed,
    -
    3001class AddConstraint(Expression):
    -3002    arg_types = {"this": False, "expression": False, "enforced": False}
    +            
    3128class AddConstraint(Expression):
    +3129    arg_types = {"this": False, "expression": False, "enforced": False}
     
    @@ -27054,8 +27603,8 @@ If another Expression instance is passed,
    -
    3005class DropPartition(Expression):
    -3006    arg_types = {"expressions": True, "exists": False}
    +            
    3132class DropPartition(Expression):
    +3133    arg_types = {"expressions": True, "exists": False}
     
    @@ -27112,22 +27661,22 @@ If another Expression instance is passed,
    class - Binary(Expression): + Binary(Condition):
    -
    3010class Binary(Expression):
    -3011    arg_types = {"this": True, "expression": True}
    -3012
    -3013    @property
    -3014    def left(self):
    -3015        return self.this
    -3016
    -3017    @property
    -3018    def right(self):
    -3019        return self.expression
    +            
    3137class Binary(Condition):
    +3138    arg_types = {"this": True, "expression": True}
    +3139
    +3140    @property
    +3141    def left(self):
    +3142        return self.this
    +3143
    +3144    @property
    +3145    def right(self):
    +3146        return self.expression
     
    @@ -27175,6 +27724,19 @@ If another Expression instance is passed,
    dump
    load
    +
    +
    @@ -27190,8 +27752,8 @@ If another Expression instance is passed, -
    3022class Add(Binary):
    -3023    pass
    +            
    3149class Add(Binary):
    +3150    pass
     
    @@ -27239,6 +27801,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27248,14 +27823,14 @@ If another Expression instance is passed,
    class - Connector(Binary, Condition): + Connector(Binary):
    -
    3026class Connector(Binary, Condition):
    -3027    pass
    +            
    3153class Connector(Binary):
    +3154    pass
     
    @@ -27308,6 +27883,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -27324,8 +27906,8 @@ If another Expression instance is passed, -
    3030class And(Connector):
    -3031    pass
    +            
    3157class And(Connector):
    +3158    pass
     
    @@ -27378,6 +27960,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -27394,8 +27983,8 @@ If another Expression instance is passed, -
    3034class Or(Connector):
    -3035    pass
    +            
    3161class Or(Connector):
    +3162    pass
     
    @@ -27448,6 +28037,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -27464,8 +28060,8 @@ If another Expression instance is passed, -
    3038class BitwiseAnd(Binary):
    -3039    pass
    +            
    3165class BitwiseAnd(Binary):
    +3166    pass
     
    @@ -27513,6 +28109,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27528,8 +28137,8 @@ If another Expression instance is passed, -
    3042class BitwiseLeftShift(Binary):
    -3043    pass
    +            
    3169class BitwiseLeftShift(Binary):
    +3170    pass
     
    @@ -27577,6 +28186,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27592,8 +28214,8 @@ If another Expression instance is passed, -
    3046class BitwiseOr(Binary):
    -3047    pass
    +            
    3173class BitwiseOr(Binary):
    +3174    pass
     
    @@ -27641,6 +28263,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27656,8 +28291,8 @@ If another Expression instance is passed, -
    3050class BitwiseRightShift(Binary):
    -3051    pass
    +            
    3177class BitwiseRightShift(Binary):
    +3178    pass
     
    @@ -27705,6 +28340,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27720,8 +28368,8 @@ If another Expression instance is passed, -
    3054class BitwiseXor(Binary):
    -3055    pass
    +            
    3181class BitwiseXor(Binary):
    +3182    pass
     
    @@ -27769,6 +28417,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27784,8 +28445,8 @@ If another Expression instance is passed, -
    3058class Div(Binary):
    -3059    pass
    +            
    3185class Div(Binary):
    +3186    pass
     
    @@ -27833,6 +28494,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27848,8 +28522,8 @@ If another Expression instance is passed, -
    3062class Overlaps(Binary):
    -3063    pass
    +            
    3189class Overlaps(Binary):
    +3190    pass
     
    @@ -27897,6 +28571,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -27912,24 +28599,24 @@ If another Expression instance is passed, -
    3066class Dot(Binary):
    -3067    @property
    -3068    def name(self) -> str:
    -3069        return self.expression.name
    -3070
    -3071    @classmethod
    -3072    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    -3073        """Build a Dot object with a sequence of expressions."""
    -3074        if len(expressions) < 2:
    -3075            raise ValueError(f"Dot requires >= 2 expressions.")
    -3076
    -3077        a, b, *expressions = expressions
    -3078        dot = Dot(this=a, expression=b)
    -3079
    -3080        for expression in expressions:
    -3081            dot = Dot(this=dot, expression=expression)
    -3082
    -3083        return dot
    +            
    3193class Dot(Binary):
    +3194    @property
    +3195    def name(self) -> str:
    +3196        return self.expression.name
    +3197
    +3198    @classmethod
    +3199    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    +3200        """Build a Dot object with a sequence of expressions."""
    +3201        if len(expressions) < 2:
    +3202            raise ValueError(f"Dot requires >= 2 expressions.")
    +3203
    +3204        a, b, *expressions = expressions
    +3205        dot = Dot(this=a, expression=b)
    +3206
    +3207        for expression in expressions:
    +3208            dot = Dot(this=dot, expression=expression)
    +3209
    +3210        return dot
     
    @@ -27947,19 +28634,19 @@ If another Expression instance is passed,
    -
    3071    @classmethod
    -3072    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    -3073        """Build a Dot object with a sequence of expressions."""
    -3074        if len(expressions) < 2:
    -3075            raise ValueError(f"Dot requires >= 2 expressions.")
    -3076
    -3077        a, b, *expressions = expressions
    -3078        dot = Dot(this=a, expression=b)
    -3079
    -3080        for expression in expressions:
    -3081            dot = Dot(this=dot, expression=expression)
    -3082
    -3083        return dot
    +            
    3198    @classmethod
    +3199    def build(self, expressions: t.Sequence[Expression]) -> Dot:
    +3200        """Build a Dot object with a sequence of expressions."""
    +3201        if len(expressions) < 2:
    +3202            raise ValueError(f"Dot requires >= 2 expressions.")
    +3203
    +3204        a, b, *expressions = expressions
    +3205        dot = Dot(this=a, expression=b)
    +3206
    +3207        for expression in expressions:
    +3208            dot = Dot(this=dot, expression=expression)
    +3209
    +3210        return dot
     
    @@ -28010,6 +28697,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28025,8 +28725,8 @@ If another Expression instance is passed, -
    3086class DPipe(Binary):
    -3087    pass
    +            
    3213class DPipe(Binary):
    +3214    pass
     
    @@ -28074,6 +28774,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28089,8 +28802,8 @@ If another Expression instance is passed, -
    3090class EQ(Binary, Predicate):
    -3091    pass
    +            
    3217class EQ(Binary, Predicate):
    +3218    pass
     
    @@ -28143,6 +28856,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28159,8 +28879,8 @@ If another Expression instance is passed, -
    3094class NullSafeEQ(Binary, Predicate):
    -3095    pass
    +            
    3221class NullSafeEQ(Binary, Predicate):
    +3222    pass
     
    @@ -28213,6 +28933,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28229,8 +28956,8 @@ If another Expression instance is passed, -
    3098class NullSafeNEQ(Binary, Predicate):
    -3099    pass
    +            
    3225class NullSafeNEQ(Binary, Predicate):
    +3226    pass
     
    @@ -28283,6 +29010,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28299,8 +29033,8 @@ If another Expression instance is passed, -
    3102class Distance(Binary):
    -3103    pass
    +            
    3229class Distance(Binary):
    +3230    pass
     
    @@ -28348,6 +29082,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28363,8 +29110,8 @@ If another Expression instance is passed, -
    3106class Escape(Binary):
    -3107    pass
    +            
    3233class Escape(Binary):
    +3234    pass
     
    @@ -28412,6 +29159,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28427,8 +29187,8 @@ If another Expression instance is passed, -
    3110class Glob(Binary, Predicate):
    -3111    pass
    +            
    3237class Glob(Binary, Predicate):
    +3238    pass
     
    @@ -28481,6 +29241,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28497,8 +29264,8 @@ If another Expression instance is passed, -
    3114class GT(Binary, Predicate):
    -3115    pass
    +            
    3241class GT(Binary, Predicate):
    +3242    pass
     
    @@ -28551,6 +29318,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28567,8 +29341,8 @@ If another Expression instance is passed, -
    3118class GTE(Binary, Predicate):
    -3119    pass
    +            
    3245class GTE(Binary, Predicate):
    +3246    pass
     
    @@ -28621,6 +29395,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28637,8 +29418,8 @@ If another Expression instance is passed, -
    3122class ILike(Binary, Predicate):
    -3123    pass
    +            
    3249class ILike(Binary, Predicate):
    +3250    pass
     
    @@ -28691,6 +29472,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28707,8 +29495,8 @@ If another Expression instance is passed, -
    3126class ILikeAny(Binary, Predicate):
    -3127    pass
    +            
    3253class ILikeAny(Binary, Predicate):
    +3254    pass
     
    @@ -28761,6 +29549,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28777,8 +29572,8 @@ If another Expression instance is passed, -
    3130class IntDiv(Binary):
    -3131    pass
    +            
    3257class IntDiv(Binary):
    +3258    pass
     
    @@ -28826,6 +29621,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28841,8 +29649,8 @@ If another Expression instance is passed, -
    3134class Is(Binary, Predicate):
    -3135    pass
    +            
    3261class Is(Binary, Predicate):
    +3262    pass
     
    @@ -28895,6 +29703,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -28911,8 +29726,8 @@ If another Expression instance is passed, -
    3138class Kwarg(Binary):
    -3139    """Kwarg in special functions like func(kwarg => y)."""
    +            
    3265class Kwarg(Binary):
    +3266    """Kwarg in special functions like func(kwarg => y)."""
     
    @@ -28962,6 +29777,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -28977,8 +29805,8 @@ If another Expression instance is passed, -
    3142class Like(Binary, Predicate):
    -3143    pass
    +            
    3269class Like(Binary, Predicate):
    +3270    pass
     
    @@ -29031,6 +29859,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29047,8 +29882,8 @@ If another Expression instance is passed, -
    3146class LikeAny(Binary, Predicate):
    -3147    pass
    +            
    3273class LikeAny(Binary, Predicate):
    +3274    pass
     
    @@ -29101,6 +29936,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29117,8 +29959,8 @@ If another Expression instance is passed, -
    3150class LT(Binary, Predicate):
    -3151    pass
    +            
    3277class LT(Binary, Predicate):
    +3278    pass
     
    @@ -29171,6 +30013,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29187,8 +30036,8 @@ If another Expression instance is passed, -
    3154class LTE(Binary, Predicate):
    -3155    pass
    +            
    3281class LTE(Binary, Predicate):
    +3282    pass
     
    @@ -29241,6 +30090,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29257,8 +30113,8 @@ If another Expression instance is passed, -
    3158class Mod(Binary):
    -3159    pass
    +            
    3285class Mod(Binary):
    +3286    pass
     
    @@ -29306,6 +30162,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29321,8 +30190,8 @@ If another Expression instance is passed, -
    3162class Mul(Binary):
    -3163    pass
    +            
    3289class Mul(Binary):
    +3290    pass
     
    @@ -29370,6 +30239,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29385,8 +30267,8 @@ If another Expression instance is passed, -
    3166class NEQ(Binary, Predicate):
    -3167    pass
    +            
    3293class NEQ(Binary, Predicate):
    +3294    pass
     
    @@ -29439,6 +30321,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29455,8 +30344,8 @@ If another Expression instance is passed, -
    3170class SimilarTo(Binary, Predicate):
    -3171    pass
    +            
    3297class SimilarTo(Binary, Predicate):
    +3298    pass
     
    @@ -29509,6 +30398,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29525,8 +30421,8 @@ If another Expression instance is passed, -
    3174class Slice(Binary):
    -3175    arg_types = {"this": False, "expression": False}
    +            
    3301class Slice(Binary):
    +3302    arg_types = {"this": False, "expression": False}
     
    @@ -29574,6 +30470,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29589,8 +30498,8 @@ If another Expression instance is passed, -
    3178class Sub(Binary):
    -3179    pass
    +            
    3305class Sub(Binary):
    +3306    pass
     
    @@ -29638,6 +30547,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29653,8 +30575,8 @@ If another Expression instance is passed, -
    3182class ArrayOverlaps(Binary):
    -3183    pass
    +            
    3309class ArrayOverlaps(Binary):
    +3310    pass
     
    @@ -29702,6 +30624,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29711,14 +30646,14 @@ If another Expression instance is passed,
    class - Unary(Expression): + Unary(Condition):
    -
    3188class Unary(Expression):
    -3189    pass
    +            
    3315class Unary(Condition):
    +3316    pass
     
    @@ -29766,6 +30701,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29781,8 +30729,8 @@ If another Expression instance is passed, -
    3192class BitwiseNot(Unary):
    -3193    pass
    +            
    3319class BitwiseNot(Unary):
    +3320    pass
     
    @@ -29830,6 +30778,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -29839,14 +30800,14 @@ If another Expression instance is passed,
    class - Not(Unary, Condition): + Not(Unary):
    -
    3196class Not(Unary, Condition):
    -3197    pass
    +            
    3323class Not(Unary):
    +3324    pass
     
    @@ -29899,6 +30860,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29909,14 +30877,14 @@ If another Expression instance is passed,
    class - Paren(Unary, Condition): + Paren(Unary):
    -
    3200class Paren(Unary, Condition):
    -3201    arg_types = {"this": True, "with": False}
    +            
    3327class Paren(Unary):
    +3328    arg_types = {"this": True, "with": False}
     
    @@ -29969,6 +30937,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -29985,8 +30960,8 @@ If another Expression instance is passed, -
    3204class Neg(Unary):
    -3205    pass
    +            
    3331class Neg(Unary):
    +3332    pass
     
    @@ -30034,6 +31009,19 @@ If another Expression instance is passed,
    dump
    load
    +
    + @@ -30049,12 +31037,12 @@ If another Expression instance is passed, -
    3208class Alias(Expression):
    -3209    arg_types = {"this": True, "alias": False}
    -3210
    -3211    @property
    -3212    def output_name(self):
    -3213        return self.alias
    +            
    3335class Alias(Expression):
    +3336    arg_types = {"this": True, "alias": False}
    +3337
    +3338    @property
    +3339    def output_name(self):
    +3340        return self.alias
     
    @@ -30146,12 +31134,12 @@ If another Expression instance is passed,
    -
    3216class Aliases(Expression):
    -3217    arg_types = {"this": True, "expressions": True}
    -3218
    -3219    @property
    -3220    def aliases(self):
    -3221        return self.expressions
    +            
    3343class Aliases(Expression):
    +3344    arg_types = {"this": True, "expressions": True}
    +3345
    +3346    @property
    +3347    def aliases(self):
    +3348        return self.expressions
     
    @@ -30214,8 +31202,8 @@ If another Expression instance is passed,
    -
    3224class AtTimeZone(Expression):
    -3225    arg_types = {"this": True, "zone": True}
    +            
    3351class AtTimeZone(Expression):
    +3352    arg_types = {"this": True, "zone": True}
     
    @@ -30278,8 +31266,8 @@ If another Expression instance is passed,
    -
    3228class Between(Predicate):
    -3229    arg_types = {"this": True, "low": True, "high": True}
    +            
    3355class Between(Predicate):
    +3356    arg_types = {"this": True, "low": True, "high": True}
     
    @@ -30332,6 +31320,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -30348,8 +31343,8 @@ If another Expression instance is passed, -
    3232class Bracket(Condition):
    -3233    arg_types = {"this": True, "expressions": True}
    +            
    3359class Bracket(Condition):
    +3360    arg_types = {"this": True, "expressions": True}
     
    @@ -30402,6 +31397,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -30418,8 +31420,8 @@ If another Expression instance is passed, -
    3236class Distinct(Expression):
    -3237    arg_types = {"expressions": False, "on": False}
    +            
    3363class Distinct(Expression):
    +3364    arg_types = {"expressions": False, "on": False}
     
    @@ -30482,15 +31484,15 @@ If another Expression instance is passed,
    -
    3240class In(Predicate):
    -3241    arg_types = {
    -3242        "this": True,
    -3243        "expressions": False,
    -3244        "query": False,
    -3245        "unnest": False,
    -3246        "field": False,
    -3247        "is_global": False,
    -3248    }
    +            
    3367class In(Predicate):
    +3368    arg_types = {
    +3369        "this": True,
    +3370        "expressions": False,
    +3371        "query": False,
    +3372        "unnest": False,
    +3373        "field": False,
    +3374        "is_global": False,
    +3375    }
     
    @@ -30543,6 +31545,13 @@ If another Expression instance is passed,
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -30559,18 +31568,18 @@ If another Expression instance is passed, -
    3251class TimeUnit(Expression):
    -3252    """Automatically converts unit arg into a var."""
    -3253
    -3254    arg_types = {"unit": False}
    -3255
    -3256    def __init__(self, **args):
    -3257        unit = args.get("unit")
    -3258        if isinstance(unit, (Column, Literal)):
    -3259            args["unit"] = Var(this=unit.name)
    -3260        elif isinstance(unit, Week):
    -3261            unit.set("this", Var(this=unit.this.name))
    -3262        super().__init__(**args)
    +            
    3378class TimeUnit(Expression):
    +3379    """Automatically converts unit arg into a var."""
    +3380
    +3381    arg_types = {"unit": False}
    +3382
    +3383    def __init__(self, **args):
    +3384        unit = args.get("unit")
    +3385        if isinstance(unit, (Column, Literal)):
    +3386            args["unit"] = Var(this=unit.name)
    +3387        elif isinstance(unit, Week):
    +3388            unit.set("this", Var(this=unit.this.name))
    +3389        super().__init__(**args)
     
    @@ -30588,13 +31597,13 @@ If another Expression instance is passed,
    -
    3256    def __init__(self, **args):
    -3257        unit = args.get("unit")
    -3258        if isinstance(unit, (Column, Literal)):
    -3259            args["unit"] = Var(this=unit.name)
    -3260        elif isinstance(unit, Week):
    -3261            unit.set("this", Var(this=unit.this.name))
    -3262        super().__init__(**args)
    +            
    3383    def __init__(self, **args):
    +3384        unit = args.get("unit")
    +3385        if isinstance(unit, (Column, Literal)):
    +3386            args["unit"] = Var(this=unit.name)
    +3387        elif isinstance(unit, Week):
    +3388            unit.set("this", Var(this=unit.this.name))
    +3389        super().__init__(**args)
     
    @@ -30657,8 +31666,8 @@ If another Expression instance is passed,
    -
    3265class Interval(TimeUnit):
    -3266    arg_types = {"this": False, "unit": False}
    +            
    3392class Interval(TimeUnit):
    +3393    arg_types = {"this": False, "unit": False}
     
    @@ -30724,8 +31733,8 @@ If another Expression instance is passed,
    -
    3269class IgnoreNulls(Expression):
    -3270    pass
    +            
    3396class IgnoreNulls(Expression):
    +3397    pass
     
    @@ -30788,8 +31797,8 @@ If another Expression instance is passed,
    -
    3273class RespectNulls(Expression):
    -3274    pass
    +            
    3400class RespectNulls(Expression):
    +3401    pass
     
    @@ -30852,53 +31861,53 @@ If another Expression instance is passed,
    -
    3278class Func(Condition):
    -3279    """
    -3280    The base class for all function expressions.
    -3281
    -3282    Attributes:
    -3283        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    -3284            treated as a variable length argument and the argument's value will be stored as a list.
    -3285        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    -3286            for this function expression. These values are used to map this node to a name during parsing
    -3287            as well as to provide the function's name during SQL string generation. By default the SQL
    -3288            name is set to the expression's class name transformed to snake case.
    -3289    """
    -3290
    -3291    is_var_len_args = False
    -3292
    -3293    @classmethod
    -3294    def from_arg_list(cls, args):
    -3295        if cls.is_var_len_args:
    -3296            all_arg_keys = list(cls.arg_types)
    -3297            # If this function supports variable length argument treat the last argument as such.
    -3298            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3299            num_non_var = len(non_var_len_arg_keys)
    -3300
    -3301            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3302            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3303        else:
    -3304            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    -3305
    -3306        return cls(**args_dict)
    -3307
    -3308    @classmethod
    -3309    def sql_names(cls):
    -3310        if cls is Func:
    -3311            raise NotImplementedError(
    -3312                "SQL name is only supported by concrete function implementations"
    -3313            )
    -3314        if "_sql_names" not in cls.__dict__:
    -3315            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3316        return cls._sql_names
    -3317
    -3318    @classmethod
    -3319    def sql_name(cls):
    -3320        return cls.sql_names()[0]
    -3321
    -3322    @classmethod
    -3323    def default_parser_mappings(cls):
    -3324        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3405class Func(Condition):
    +3406    """
    +3407    The base class for all function expressions.
    +3408
    +3409    Attributes:
    +3410        is_var_len_args (bool): if set to True the last argument defined in arg_types will be
    +3411            treated as a variable length argument and the argument's value will be stored as a list.
    +3412        _sql_names (list): determines the SQL name (1st item in the list) and aliases (subsequent items)
    +3413            for this function expression. These values are used to map this node to a name during parsing
    +3414            as well as to provide the function's name during SQL string generation. By default the SQL
    +3415            name is set to the expression's class name transformed to snake case.
    +3416    """
    +3417
    +3418    is_var_len_args = False
    +3419
    +3420    @classmethod
    +3421    def from_arg_list(cls, args):
    +3422        if cls.is_var_len_args:
    +3423            all_arg_keys = list(cls.arg_types)
    +3424            # If this function supports variable length argument treat the last argument as such.
    +3425            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3426            num_non_var = len(non_var_len_arg_keys)
    +3427
    +3428            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3429            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3430        else:
    +3431            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3432
    +3433        return cls(**args_dict)
    +3434
    +3435    @classmethod
    +3436    def sql_names(cls):
    +3437        if cls is Func:
    +3438            raise NotImplementedError(
    +3439                "SQL name is only supported by concrete function implementations"
    +3440            )
    +3441        if "_sql_names" not in cls.__dict__:
    +3442            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3443        return cls._sql_names
    +3444
    +3445    @classmethod
    +3446    def sql_name(cls):
    +3447        return cls.sql_names()[0]
    +3448
    +3449    @classmethod
    +3450    def default_parser_mappings(cls):
    +3451        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -30929,20 +31938,20 @@ name is set to the expression's class name transformed to snake case.
    -
    3293    @classmethod
    -3294    def from_arg_list(cls, args):
    -3295        if cls.is_var_len_args:
    -3296            all_arg_keys = list(cls.arg_types)
    -3297            # If this function supports variable length argument treat the last argument as such.
    -3298            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    -3299            num_non_var = len(non_var_len_arg_keys)
    -3300
    -3301            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    -3302            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    -3303        else:
    -3304            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    -3305
    -3306        return cls(**args_dict)
    +            
    3420    @classmethod
    +3421    def from_arg_list(cls, args):
    +3422        if cls.is_var_len_args:
    +3423            all_arg_keys = list(cls.arg_types)
    +3424            # If this function supports variable length argument treat the last argument as such.
    +3425            non_var_len_arg_keys = all_arg_keys[:-1] if cls.is_var_len_args else all_arg_keys
    +3426            num_non_var = len(non_var_len_arg_keys)
    +3427
    +3428            args_dict = {arg_key: arg for arg, arg_key in zip(args, non_var_len_arg_keys)}
    +3429            args_dict[all_arg_keys[-1]] = args[num_non_var:]
    +3430        else:
    +3431            args_dict = {arg_key: arg for arg, arg_key in zip(args, cls.arg_types)}
    +3432
    +3433        return cls(**args_dict)
     
    @@ -30961,15 +31970,15 @@ name is set to the expression's class name transformed to snake case.
    -
    3308    @classmethod
    -3309    def sql_names(cls):
    -3310        if cls is Func:
    -3311            raise NotImplementedError(
    -3312                "SQL name is only supported by concrete function implementations"
    -3313            )
    -3314        if "_sql_names" not in cls.__dict__:
    -3315            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    -3316        return cls._sql_names
    +            
    3435    @classmethod
    +3436    def sql_names(cls):
    +3437        if cls is Func:
    +3438            raise NotImplementedError(
    +3439                "SQL name is only supported by concrete function implementations"
    +3440            )
    +3441        if "_sql_names" not in cls.__dict__:
    +3442            cls._sql_names = [camel_to_snake_case(cls.__name__)]
    +3443        return cls._sql_names
     
    @@ -30988,9 +31997,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3318    @classmethod
    -3319    def sql_name(cls):
    -3320        return cls.sql_names()[0]
    +            
    3445    @classmethod
    +3446    def sql_name(cls):
    +3447        return cls.sql_names()[0]
     
    @@ -31009,9 +32018,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3322    @classmethod
    -3323    def default_parser_mappings(cls):
    -3324        return {name: cls.from_arg_list for name in cls.sql_names()}
    +            
    3449    @classmethod
    +3450    def default_parser_mappings(cls):
    +3451        return {name: cls.from_arg_list for name in cls.sql_names()}
     
    @@ -31065,6 +32074,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31081,8 +32097,8 @@ name is set to the expression's class name transformed to snake case. -
    3327class AggFunc(Func):
    -3328    pass
    +            
    3454class AggFunc(Func):
    +3455    pass
     
    @@ -31142,6 +32158,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31158,8 +32181,8 @@ name is set to the expression's class name transformed to snake case. -
    3331class Abs(Func):
    -3332    pass
    +            
    3458class Abs(Func):
    +3459    pass
     
    @@ -31219,6 +32242,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31235,9 +32265,9 @@ name is set to the expression's class name transformed to snake case. -
    3335class Anonymous(Func):
    -3336    arg_types = {"this": True, "expressions": False}
    -3337    is_var_len_args = True
    +            
    3462class Anonymous(Func):
    +3463    arg_types = {"this": True, "expressions": False}
    +3464    is_var_len_args = True
     
    @@ -31297,6 +32327,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31313,9 +32350,9 @@ name is set to the expression's class name transformed to snake case. -
    3342class Hll(AggFunc):
    -3343    arg_types = {"this": True, "expressions": False}
    -3344    is_var_len_args = True
    +            
    3469class Hll(AggFunc):
    +3470    arg_types = {"this": True, "expressions": False}
    +3471    is_var_len_args = True
     
    @@ -31375,6 +32412,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31391,8 +32435,8 @@ name is set to the expression's class name transformed to snake case. -
    3347class ApproxDistinct(AggFunc):
    -3348    arg_types = {"this": True, "accuracy": False}
    +            
    3474class ApproxDistinct(AggFunc):
    +3475    arg_types = {"this": True, "accuracy": False}
     
    @@ -31452,6 +32496,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31468,9 +32519,9 @@ name is set to the expression's class name transformed to snake case. -
    3351class Array(Func):
    -3352    arg_types = {"expressions": False}
    -3353    is_var_len_args = True
    +            
    3478class Array(Func):
    +3479    arg_types = {"expressions": False}
    +3480    is_var_len_args = True
     
    @@ -31530,6 +32581,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31546,8 +32604,8 @@ name is set to the expression's class name transformed to snake case. -
    3357class ToChar(Func):
    -3358    arg_types = {"this": True, "format": False}
    +            
    3484class ToChar(Func):
    +3485    arg_types = {"this": True, "format": False}
     
    @@ -31607,6 +32665,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31623,8 +32688,8 @@ name is set to the expression's class name transformed to snake case. -
    3361class GenerateSeries(Func):
    -3362    arg_types = {"start": True, "end": True, "step": False}
    +            
    3488class GenerateSeries(Func):
    +3489    arg_types = {"start": True, "end": True, "step": False}
     
    @@ -31684,6 +32749,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31700,8 +32772,8 @@ name is set to the expression's class name transformed to snake case. -
    3365class ArrayAgg(AggFunc):
    -3366    pass
    +            
    3492class ArrayAgg(AggFunc):
    +3493    pass
     
    @@ -31761,6 +32833,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31777,8 +32856,8 @@ name is set to the expression's class name transformed to snake case. -
    3369class ArrayAll(Func):
    -3370    arg_types = {"this": True, "expression": True}
    +            
    3496class ArrayAll(Func):
    +3497    arg_types = {"this": True, "expression": True}
     
    @@ -31838,6 +32917,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31854,8 +32940,8 @@ name is set to the expression's class name transformed to snake case. -
    3373class ArrayAny(Func):
    -3374    arg_types = {"this": True, "expression": True}
    +            
    3500class ArrayAny(Func):
    +3501    arg_types = {"this": True, "expression": True}
     
    @@ -31915,6 +33001,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -31931,9 +33024,9 @@ name is set to the expression's class name transformed to snake case. -
    3377class ArrayConcat(Func):
    -3378    arg_types = {"this": True, "expressions": False}
    -3379    is_var_len_args = True
    +            
    3504class ArrayConcat(Func):
    +3505    arg_types = {"this": True, "expressions": False}
    +3506    is_var_len_args = True
     
    @@ -31993,6 +33086,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32009,8 +33109,8 @@ name is set to the expression's class name transformed to snake case. -
    3382class ArrayContains(Binary, Func):
    -3383    pass
    +            
    3509class ArrayContains(Binary, Func):
    +3510    pass
     
    @@ -32070,6 +33170,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32086,8 +33193,8 @@ name is set to the expression's class name transformed to snake case. -
    3386class ArrayContained(Binary):
    -3387    pass
    +            
    3513class ArrayContained(Binary):
    +3514    pass
     
    @@ -32135,6 +33242,19 @@ name is set to the expression's class name transformed to snake case.
    dump
    load
    +
    + @@ -32150,9 +33270,9 @@ name is set to the expression's class name transformed to snake case. -
    3390class ArrayFilter(Func):
    -3391    arg_types = {"this": True, "expression": True}
    -3392    _sql_names = ["FILTER", "ARRAY_FILTER"]
    +            
    3517class ArrayFilter(Func):
    +3518    arg_types = {"this": True, "expression": True}
    +3519    _sql_names = ["FILTER", "ARRAY_FILTER"]
     
    @@ -32212,6 +33332,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32228,8 +33355,8 @@ name is set to the expression's class name transformed to snake case. -
    3395class ArrayJoin(Func):
    -3396    arg_types = {"this": True, "expression": True, "null": False}
    +            
    3522class ArrayJoin(Func):
    +3523    arg_types = {"this": True, "expression": True, "null": False}
     
    @@ -32289,6 +33416,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32305,8 +33439,8 @@ name is set to the expression's class name transformed to snake case. -
    3399class ArraySize(Func):
    -3400    arg_types = {"this": True, "expression": False}
    +            
    3526class ArraySize(Func):
    +3527    arg_types = {"this": True, "expression": False}
     
    @@ -32366,6 +33500,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32382,8 +33523,8 @@ name is set to the expression's class name transformed to snake case. -
    3403class ArraySort(Func):
    -3404    arg_types = {"this": True, "expression": False}
    +            
    3530class ArraySort(Func):
    +3531    arg_types = {"this": True, "expression": False}
     
    @@ -32443,6 +33584,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32459,8 +33607,8 @@ name is set to the expression's class name transformed to snake case. -
    3407class ArraySum(Func):
    -3408    pass
    +            
    3534class ArraySum(Func):
    +3535    pass
     
    @@ -32520,6 +33668,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32536,8 +33691,8 @@ name is set to the expression's class name transformed to snake case. -
    3411class ArrayUnionAgg(AggFunc):
    -3412    pass
    +            
    3538class ArrayUnionAgg(AggFunc):
    +3539    pass
     
    @@ -32597,6 +33752,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32613,8 +33775,8 @@ name is set to the expression's class name transformed to snake case. -
    3415class Avg(AggFunc):
    -3416    pass
    +            
    3542class Avg(AggFunc):
    +3543    pass
     
    @@ -32674,6 +33836,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32690,8 +33859,8 @@ name is set to the expression's class name transformed to snake case. -
    3419class AnyValue(AggFunc):
    -3420    pass
    +            
    3546class AnyValue(AggFunc):
    +3547    pass
     
    @@ -32751,6 +33920,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32767,13 +33943,77 @@ name is set to the expression's class name transformed to snake case. -
    3423class Case(Func):
    -3424    arg_types = {"this": False, "ifs": True, "default": False}
    +            
    3550class Case(Func):
    +3551    arg_types = {"this": False, "ifs": True, "default": False}
    +3552
    +3553    def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case:
    +3554        instance = _maybe_copy(self, copy)
    +3555        instance.append(
    +3556            "ifs",
    +3557            If(
    +3558                this=maybe_parse(condition, copy=copy, **opts),
    +3559                true=maybe_parse(then, copy=copy, **opts),
    +3560            ),
    +3561        )
    +3562        return instance
    +3563
    +3564    def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case:
    +3565        instance = _maybe_copy(self, copy)
    +3566        instance.set("default", maybe_parse(condition, copy=copy, **opts))
    +3567        return instance
    +
    + + + + +
    + +
    + + def + when( self, condition: Union[str, sqlglot.expressions.Expression], then: Union[str, sqlglot.expressions.Expression], copy: bool = True, **opts) -> sqlglot.expressions.Case: + + + +
    + +
    3553    def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case:
    +3554        instance = _maybe_copy(self, copy)
    +3555        instance.append(
    +3556            "ifs",
    +3557            If(
    +3558                this=maybe_parse(condition, copy=copy, **opts),
    +3559                true=maybe_parse(then, copy=copy, **opts),
    +3560            ),
    +3561        )
    +3562        return instance
    +
    + + + + +
    +
    + +
    + + def + else_( self, condition: Union[str, sqlglot.expressions.Expression], copy: bool = True, **opts) -> sqlglot.expressions.Case: + + + +
    + +
    3564    def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case:
    +3565        instance = _maybe_copy(self, copy)
    +3566        instance.set("default", maybe_parse(condition, copy=copy, **opts))
    +3567        return instance
     
    +
    Inherited Members
    @@ -32828,6 +34068,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32844,23 +34091,23 @@ name is set to the expression's class name transformed to snake case.
    -
    3427class Cast(Func):
    -3428    arg_types = {"this": True, "to": True}
    -3429
    -3430    @property
    -3431    def name(self) -> str:
    -3432        return self.this.name
    -3433
    -3434    @property
    -3435    def to(self):
    -3436        return self.args["to"]
    -3437
    -3438    @property
    -3439    def output_name(self):
    -3440        return self.name
    -3441
    -3442    def is_type(self, dtype: DataType.Type) -> bool:
    -3443        return self.to.is_type(dtype)
    +            
    3570class Cast(Func):
    +3571    arg_types = {"this": True, "to": True}
    +3572
    +3573    @property
    +3574    def name(self) -> str:
    +3575        return self.this.name
    +3576
    +3577    @property
    +3578    def to(self):
    +3579        return self.args["to"]
    +3580
    +3581    @property
    +3582    def output_name(self):
    +3583        return self.name
    +3584
    +3585    def is_type(self, dtype: DataType.Type) -> bool:
    +3586        return self.to.is_type(dtype)
     
    @@ -32907,8 +34154,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3442    def is_type(self, dtype: DataType.Type) -> bool:
    -3443        return self.to.is_type(dtype)
    +            
    3585    def is_type(self, dtype: DataType.Type) -> bool:
    +3586        return self.to.is_type(dtype)
     
    @@ -32968,6 +34215,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -32984,8 +34238,8 @@ name is set to the expression's class name transformed to snake case. -
    3446class Collate(Binary):
    -3447    pass
    +            
    3589class Collate(Binary):
    +3590    pass
     
    @@ -33033,6 +34287,19 @@ name is set to the expression's class name transformed to snake case.
    dump
    load
    +
    + @@ -33048,8 +34315,8 @@ name is set to the expression's class name transformed to snake case. -
    3450class TryCast(Cast):
    -3451    pass
    +            
    3593class TryCast(Cast):
    +3594    pass
     
    @@ -33113,6 +34380,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33129,9 +34403,9 @@ name is set to the expression's class name transformed to snake case. -
    3454class Ceil(Func):
    -3455    arg_types = {"this": True, "decimals": False}
    -3456    _sql_names = ["CEIL", "CEILING"]
    +            
    3597class Ceil(Func):
    +3598    arg_types = {"this": True, "decimals": False}
    +3599    _sql_names = ["CEIL", "CEILING"]
     
    @@ -33191,6 +34465,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33207,9 +34488,9 @@ name is set to the expression's class name transformed to snake case. -
    3459class Coalesce(Func):
    -3460    arg_types = {"this": True, "expressions": False}
    -3461    is_var_len_args = True
    +            
    3602class Coalesce(Func):
    +3603    arg_types = {"this": True, "expressions": False}
    +3604    is_var_len_args = True
     
    @@ -33269,6 +34550,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33285,9 +34573,9 @@ name is set to the expression's class name transformed to snake case. -
    3464class Concat(Func):
    -3465    arg_types = {"expressions": True}
    -3466    is_var_len_args = True
    +            
    3607class Concat(Func):
    +3608    arg_types = {"expressions": True}
    +3609    is_var_len_args = True
     
    @@ -33347,6 +34635,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33363,8 +34658,8 @@ name is set to the expression's class name transformed to snake case. -
    3469class ConcatWs(Concat):
    -3470    _sql_names = ["CONCAT_WS"]
    +            
    3612class ConcatWs(Concat):
    +3613    _sql_names = ["CONCAT_WS"]
     
    @@ -33424,6 +34719,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33440,8 +34742,8 @@ name is set to the expression's class name transformed to snake case. -
    3473class Count(AggFunc):
    -3474    arg_types = {"this": False}
    +            
    3616class Count(AggFunc):
    +3617    arg_types = {"this": False}
     
    @@ -33501,6 +34803,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33517,8 +34826,8 @@ name is set to the expression's class name transformed to snake case. -
    3477class CountIf(AggFunc):
    -3478    pass
    +            
    3620class CountIf(AggFunc):
    +3621    pass
     
    @@ -33578,6 +34887,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33594,8 +34910,8 @@ name is set to the expression's class name transformed to snake case. -
    3481class CurrentDate(Func):
    -3482    arg_types = {"this": False}
    +            
    3624class CurrentDate(Func):
    +3625    arg_types = {"this": False}
     
    @@ -33655,6 +34971,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33671,8 +34994,8 @@ name is set to the expression's class name transformed to snake case. -
    3485class CurrentDatetime(Func):
    -3486    arg_types = {"this": False}
    +            
    3628class CurrentDatetime(Func):
    +3629    arg_types = {"this": False}
     
    @@ -33732,6 +35055,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33748,8 +35078,8 @@ name is set to the expression's class name transformed to snake case. -
    3489class CurrentTime(Func):
    -3490    arg_types = {"this": False}
    +            
    3632class CurrentTime(Func):
    +3633    arg_types = {"this": False}
     
    @@ -33809,6 +35139,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33825,8 +35162,8 @@ name is set to the expression's class name transformed to snake case. -
    3493class CurrentTimestamp(Func):
    -3494    arg_types = {"this": False}
    +            
    3636class CurrentTimestamp(Func):
    +3637    arg_types = {"this": False}
     
    @@ -33886,6 +35223,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33902,8 +35246,8 @@ name is set to the expression's class name transformed to snake case. -
    3497class CurrentUser(Func):
    -3498    arg_types = {"this": False}
    +            
    3640class CurrentUser(Func):
    +3641    arg_types = {"this": False}
     
    @@ -33963,6 +35307,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -33979,8 +35330,8 @@ name is set to the expression's class name transformed to snake case. -
    3501class DateAdd(Func, TimeUnit):
    -3502    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3644class DateAdd(Func, TimeUnit):
    +3645    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34004,6 +35355,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34059,8 +35417,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3505class DateSub(Func, TimeUnit):
    -3506    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3648class DateSub(Func, TimeUnit):
    +3649    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34084,6 +35442,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34139,9 +35504,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3509class DateDiff(Func, TimeUnit):
    -3510    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    -3511    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3652class DateDiff(Func, TimeUnit):
    +3653    _sql_names = ["DATEDIFF", "DATE_DIFF"]
    +3654    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34165,6 +35530,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34220,8 +35592,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3514class DateTrunc(Func):
    -3515    arg_types = {"unit": True, "this": True, "zone": False}
    +            
    3657class DateTrunc(Func):
    +3658    arg_types = {"unit": True, "this": True, "zone": False}
     
    @@ -34281,6 +35653,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -34297,8 +35676,8 @@ name is set to the expression's class name transformed to snake case. -
    3518class DatetimeAdd(Func, TimeUnit):
    -3519    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3661class DatetimeAdd(Func, TimeUnit):
    +3662    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34322,6 +35701,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34377,8 +35763,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3522class DatetimeSub(Func, TimeUnit):
    -3523    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3665class DatetimeSub(Func, TimeUnit):
    +3666    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34402,6 +35788,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34457,8 +35850,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3526class DatetimeDiff(Func, TimeUnit):
    -3527    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3669class DatetimeDiff(Func, TimeUnit):
    +3670    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -34482,6 +35875,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34537,8 +35937,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3530class DatetimeTrunc(Func, TimeUnit):
    -3531    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3673class DatetimeTrunc(Func, TimeUnit):
    +3674    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -34562,6 +35962,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -34617,8 +36024,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3534class DayOfWeek(Func):
    -3535    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
    +            
    3677class DayOfWeek(Func):
    +3678    _sql_names = ["DAY_OF_WEEK", "DAYOFWEEK"]
     
    @@ -34678,6 +36085,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -34694,8 +36108,8 @@ name is set to the expression's class name transformed to snake case. -
    3538class DayOfMonth(Func):
    -3539    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
    +            
    3681class DayOfMonth(Func):
    +3682    _sql_names = ["DAY_OF_MONTH", "DAYOFMONTH"]
     
    @@ -34755,6 +36169,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -34771,8 +36192,8 @@ name is set to the expression's class name transformed to snake case. -
    3542class DayOfYear(Func):
    -3543    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
    +            
    3685class DayOfYear(Func):
    +3686    _sql_names = ["DAY_OF_YEAR", "DAYOFYEAR"]
     
    @@ -34832,6 +36253,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -34848,8 +36276,8 @@ name is set to the expression's class name transformed to snake case. -
    3546class WeekOfYear(Func):
    -3547    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
    +            
    3689class WeekOfYear(Func):
    +3690    _sql_names = ["WEEK_OF_YEAR", "WEEKOFYEAR"]
     
    @@ -34909,6 +36337,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -34925,8 +36360,8 @@ name is set to the expression's class name transformed to snake case. -
    3550class LastDateOfMonth(Func):
    -3551    pass
    +            
    3693class LastDateOfMonth(Func):
    +3694    pass
     
    @@ -34986,6 +36421,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -35002,8 +36444,8 @@ name is set to the expression's class name transformed to snake case. -
    3554class Extract(Func):
    -3555    arg_types = {"this": True, "expression": True}
    +            
    3697class Extract(Func):
    +3698    arg_types = {"this": True, "expression": True}
     
    @@ -35063,6 +36505,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -35079,8 +36528,8 @@ name is set to the expression's class name transformed to snake case. -
    3558class TimestampAdd(Func, TimeUnit):
    -3559    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3701class TimestampAdd(Func, TimeUnit):
    +3702    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35104,6 +36553,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35159,8 +36615,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3562class TimestampSub(Func, TimeUnit):
    -3563    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3705class TimestampSub(Func, TimeUnit):
    +3706    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35184,6 +36640,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35239,8 +36702,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3566class TimestampDiff(Func, TimeUnit):
    -3567    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3709class TimestampDiff(Func, TimeUnit):
    +3710    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35264,6 +36727,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35319,8 +36789,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3570class TimestampTrunc(Func, TimeUnit):
    -3571    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3713class TimestampTrunc(Func, TimeUnit):
    +3714    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -35344,6 +36814,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35399,8 +36876,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3574class TimeAdd(Func, TimeUnit):
    -3575    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3717class TimeAdd(Func, TimeUnit):
    +3718    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35424,6 +36901,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35479,8 +36963,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3578class TimeSub(Func, TimeUnit):
    -3579    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3721class TimeSub(Func, TimeUnit):
    +3722    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35504,6 +36988,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35559,8 +37050,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3582class TimeDiff(Func, TimeUnit):
    -3583    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    3725class TimeDiff(Func, TimeUnit):
    +3726    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -35584,6 +37075,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35639,8 +37137,8 @@ name is set to the expression's class name transformed to snake case.
    -
    3586class TimeTrunc(Func, TimeUnit):
    -3587    arg_types = {"this": True, "unit": True, "zone": False}
    +            
    3729class TimeTrunc(Func, TimeUnit):
    +3730    arg_types = {"this": True, "unit": True, "zone": False}
     
    @@ -35664,6 +37162,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -35719,9 +37224,9 @@ name is set to the expression's class name transformed to snake case.
    -
    3590class DateFromParts(Func):
    -3591    _sql_names = ["DATEFROMPARTS"]
    -3592    arg_types = {"year": True, "month": True, "day": True}
    +            
    3733class DateFromParts(Func):
    +3734    _sql_names = ["DATEFROMPARTS"]
    +3735    arg_types = {"year": True, "month": True, "day": True}
     
    @@ -35781,6 +37286,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -35797,8 +37309,8 @@ name is set to the expression's class name transformed to snake case. -
    3595class DateStrToDate(Func):
    -3596    pass
    +            
    3738class DateStrToDate(Func):
    +3739    pass
     
    @@ -35858,6 +37370,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -35874,8 +37393,8 @@ name is set to the expression's class name transformed to snake case. -
    3599class DateToDateStr(Func):
    -3600    pass
    +            
    3742class DateToDateStr(Func):
    +3743    pass
     
    @@ -35935,6 +37454,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -35951,8 +37477,8 @@ name is set to the expression's class name transformed to snake case. -
    3603class DateToDi(Func):
    -3604    pass
    +            
    3746class DateToDi(Func):
    +3747    pass
     
    @@ -36012,6 +37538,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36028,8 +37561,8 @@ name is set to the expression's class name transformed to snake case. -
    3607class Day(Func):
    -3608    pass
    +            
    3750class Day(Func):
    +3751    pass
     
    @@ -36089,6 +37622,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36105,8 +37645,8 @@ name is set to the expression's class name transformed to snake case. -
    3611class Decode(Func):
    -3612    arg_types = {"this": True, "charset": True, "replace": False}
    +            
    3754class Decode(Func):
    +3755    arg_types = {"this": True, "charset": True, "replace": False}
     
    @@ -36166,6 +37706,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36182,8 +37729,8 @@ name is set to the expression's class name transformed to snake case. -
    3615class DiToDate(Func):
    -3616    pass
    +            
    3758class DiToDate(Func):
    +3759    pass
     
    @@ -36243,6 +37790,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36259,8 +37813,8 @@ name is set to the expression's class name transformed to snake case. -
    3619class Encode(Func):
    -3620    arg_types = {"this": True, "charset": True}
    +            
    3762class Encode(Func):
    +3763    arg_types = {"this": True, "charset": True}
     
    @@ -36320,6 +37874,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36336,8 +37897,8 @@ name is set to the expression's class name transformed to snake case. -
    3623class Exp(Func):
    -3624    pass
    +            
    3766class Exp(Func):
    +3767    pass
     
    @@ -36397,6 +37958,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36413,8 +37981,8 @@ name is set to the expression's class name transformed to snake case. -
    3627class Explode(Func):
    -3628    pass
    +            
    3770class Explode(Func):
    +3771    pass
     
    @@ -36474,6 +38042,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36490,8 +38065,8 @@ name is set to the expression's class name transformed to snake case. -
    3631class ExponentialTimeDecayedAvg(AggFunc):
    -3632    arg_types = {"this": True, "time": False, "decay": False}
    +            
    3774class ExponentialTimeDecayedAvg(AggFunc):
    +3775    arg_types = {"this": True, "time": False, "decay": False}
     
    @@ -36551,6 +38126,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36567,8 +38149,8 @@ name is set to the expression's class name transformed to snake case. -
    3635class Floor(Func):
    -3636    arg_types = {"this": True, "decimals": False}
    +            
    3778class Floor(Func):
    +3779    arg_types = {"this": True, "decimals": False}
     
    @@ -36628,6 +38210,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36644,9 +38233,9 @@ name is set to the expression's class name transformed to snake case. -
    3639class Greatest(Func):
    -3640    arg_types = {"this": True, "expressions": False}
    -3641    is_var_len_args = True
    +            
    3782class Greatest(Func):
    +3783    arg_types = {"this": True, "expressions": False}
    +3784    is_var_len_args = True
     
    @@ -36706,6 +38295,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36722,8 +38318,8 @@ name is set to the expression's class name transformed to snake case. -
    3644class GroupConcat(Func):
    -3645    arg_types = {"this": True, "separator": False}
    +            
    3787class GroupConcat(Func):
    +3788    arg_types = {"this": True, "separator": False}
     
    @@ -36783,6 +38379,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36799,8 +38402,8 @@ name is set to the expression's class name transformed to snake case. -
    3648class GroupUniqArray(AggFunc):
    -3649    arg_types = {"this": True, "size": False}
    +            
    3791class GroupUniqArray(AggFunc):
    +3792    arg_types = {"this": True, "size": False}
     
    @@ -36860,6 +38463,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36876,8 +38486,8 @@ name is set to the expression's class name transformed to snake case. -
    3652class Hex(Func):
    -3653    pass
    +            
    3795class Hex(Func):
    +3796    pass
     
    @@ -36937,6 +38547,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -36953,8 +38570,8 @@ name is set to the expression's class name transformed to snake case. -
    3656class Histogram(AggFunc):
    -3657    arg_types = {"this": True, "bins": False}
    +            
    3799class Histogram(AggFunc):
    +3800    arg_types = {"this": True, "bins": False}
     
    @@ -37014,6 +38631,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37030,8 +38654,8 @@ name is set to the expression's class name transformed to snake case. -
    3660class If(Func):
    -3661    arg_types = {"this": True, "true": True, "false": False}
    +            
    3803class If(Func):
    +3804    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -37091,6 +38715,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37107,9 +38738,9 @@ name is set to the expression's class name transformed to snake case. -
    3664class IfNull(Func):
    -3665    arg_types = {"this": True, "expression": False}
    -3666    _sql_names = ["IFNULL", "NVL"]
    +            
    3807class IfNull(Func):
    +3808    arg_types = {"this": True, "expression": False}
    +3809    _sql_names = ["IFNULL", "NVL"]
     
    @@ -37169,6 +38800,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37185,8 +38823,8 @@ name is set to the expression's class name transformed to snake case. -
    3669class Initcap(Func):
    -3670    pass
    +            
    3812class Initcap(Func):
    +3813    pass
     
    @@ -37246,6 +38884,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37262,8 +38907,8 @@ name is set to the expression's class name transformed to snake case. -
    3673class JSONKeyValue(Expression):
    -3674    arg_types = {"this": True, "expression": True}
    +            
    3816class JSONKeyValue(Expression):
    +3817    arg_types = {"this": True, "expression": True}
     
    @@ -37326,15 +38971,15 @@ name is set to the expression's class name transformed to snake case.
    -
    3677class JSONObject(Func):
    -3678    arg_types = {
    -3679        "expressions": False,
    -3680        "null_handling": False,
    -3681        "unique_keys": False,
    -3682        "return_type": False,
    -3683        "format_json": False,
    -3684        "encoding": False,
    -3685    }
    +            
    3820class JSONObject(Func):
    +3821    arg_types = {
    +3822        "expressions": False,
    +3823        "null_handling": False,
    +3824        "unique_keys": False,
    +3825        "return_type": False,
    +3826        "format_json": False,
    +3827        "encoding": False,
    +3828    }
     
    @@ -37394,6 +39039,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37410,8 +39062,8 @@ name is set to the expression's class name transformed to snake case. -
    3688class JSONBContains(Binary):
    -3689    _sql_names = ["JSONB_CONTAINS"]
    +            
    3831class JSONBContains(Binary):
    +3832    _sql_names = ["JSONB_CONTAINS"]
     
    @@ -37459,6 +39111,19 @@ name is set to the expression's class name transformed to snake case.
    dump
    load
    +
    + @@ -37474,8 +39139,8 @@ name is set to the expression's class name transformed to snake case. -
    3692class JSONExtract(Binary, Func):
    -3693    _sql_names = ["JSON_EXTRACT"]
    +            
    3835class JSONExtract(Binary, Func):
    +3836    _sql_names = ["JSON_EXTRACT"]
     
    @@ -37535,6 +39200,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37551,8 +39223,8 @@ name is set to the expression's class name transformed to snake case. -
    3696class JSONExtractScalar(JSONExtract):
    -3697    _sql_names = ["JSON_EXTRACT_SCALAR"]
    +            
    3839class JSONExtractScalar(JSONExtract):
    +3840    _sql_names = ["JSON_EXTRACT_SCALAR"]
     
    @@ -37612,6 +39284,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37628,8 +39307,8 @@ name is set to the expression's class name transformed to snake case. -
    3700class JSONBExtract(JSONExtract):
    -3701    _sql_names = ["JSONB_EXTRACT"]
    +            
    3843class JSONBExtract(JSONExtract):
    +3844    _sql_names = ["JSONB_EXTRACT"]
     
    @@ -37689,6 +39368,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37705,8 +39391,8 @@ name is set to the expression's class name transformed to snake case. -
    3704class JSONBExtractScalar(JSONExtract):
    -3705    _sql_names = ["JSONB_EXTRACT_SCALAR"]
    +            
    3847class JSONBExtractScalar(JSONExtract):
    +3848    _sql_names = ["JSONB_EXTRACT_SCALAR"]
     
    @@ -37766,6 +39452,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37782,9 +39475,9 @@ name is set to the expression's class name transformed to snake case. -
    3708class JSONFormat(Func):
    -3709    arg_types = {"this": False, "options": False}
    -3710    _sql_names = ["JSON_FORMAT"]
    +            
    3851class JSONFormat(Func):
    +3852    arg_types = {"this": False, "options": False}
    +3853    _sql_names = ["JSON_FORMAT"]
     
    @@ -37844,6 +39537,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37860,9 +39560,9 @@ name is set to the expression's class name transformed to snake case. -
    3713class Least(Func):
    -3714    arg_types = {"expressions": False}
    -3715    is_var_len_args = True
    +            
    3856class Least(Func):
    +3857    arg_types = {"expressions": False}
    +3858    is_var_len_args = True
     
    @@ -37922,6 +39622,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -37938,8 +39645,8 @@ name is set to the expression's class name transformed to snake case. -
    3718class Length(Func):
    -3719    pass
    +            
    3861class Length(Func):
    +3862    pass
     
    @@ -37999,6 +39706,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38015,14 +39729,14 @@ name is set to the expression's class name transformed to snake case. -
    3722class Levenshtein(Func):
    -3723    arg_types = {
    -3724        "this": True,
    -3725        "expression": False,
    -3726        "ins_cost": False,
    -3727        "del_cost": False,
    -3728        "sub_cost": False,
    -3729    }
    +            
    3865class Levenshtein(Func):
    +3866    arg_types = {
    +3867        "this": True,
    +3868        "expression": False,
    +3869        "ins_cost": False,
    +3870        "del_cost": False,
    +3871        "sub_cost": False,
    +3872    }
     
    @@ -38082,6 +39796,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38098,8 +39819,8 @@ name is set to the expression's class name transformed to snake case. -
    3732class Ln(Func):
    -3733    pass
    +            
    3875class Ln(Func):
    +3876    pass
     
    @@ -38159,6 +39880,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38175,8 +39903,8 @@ name is set to the expression's class name transformed to snake case. -
    3736class Log(Func):
    -3737    arg_types = {"this": True, "expression": False}
    +            
    3879class Log(Func):
    +3880    arg_types = {"this": True, "expression": False}
     
    @@ -38236,6 +39964,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38252,8 +39987,8 @@ name is set to the expression's class name transformed to snake case. -
    3740class Log2(Func):
    -3741    pass
    +            
    3883class Log2(Func):
    +3884    pass
     
    @@ -38313,6 +40048,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38329,8 +40071,8 @@ name is set to the expression's class name transformed to snake case. -
    3744class Log10(Func):
    -3745    pass
    +            
    3887class Log10(Func):
    +3888    pass
     
    @@ -38390,6 +40132,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38406,8 +40155,8 @@ name is set to the expression's class name transformed to snake case. -
    3748class LogicalOr(AggFunc):
    -3749    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]
    +            
    3891class LogicalOr(AggFunc):
    +3892    _sql_names = ["LOGICAL_OR", "BOOL_OR", "BOOLOR_AGG"]
     
    @@ -38467,6 +40216,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38483,8 +40239,8 @@ name is set to the expression's class name transformed to snake case. -
    3752class LogicalAnd(AggFunc):
    -3753    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]
    +            
    3895class LogicalAnd(AggFunc):
    +3896    _sql_names = ["LOGICAL_AND", "BOOL_AND", "BOOLAND_AGG"]
     
    @@ -38544,6 +40300,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38560,8 +40323,8 @@ name is set to the expression's class name transformed to snake case. -
    3756class Lower(Func):
    -3757    _sql_names = ["LOWER", "LCASE"]
    +            
    3899class Lower(Func):
    +3900    _sql_names = ["LOWER", "LCASE"]
     
    @@ -38621,6 +40384,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38637,8 +40407,8 @@ name is set to the expression's class name transformed to snake case. -
    3760class Map(Func):
    -3761    arg_types = {"keys": False, "values": False}
    +            
    3903class Map(Func):
    +3904    arg_types = {"keys": False, "values": False}
     
    @@ -38698,6 +40468,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38714,8 +40491,8 @@ name is set to the expression's class name transformed to snake case. -
    3764class StarMap(Func):
    -3765    pass
    +            
    3907class StarMap(Func):
    +3908    pass
     
    @@ -38775,6 +40552,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38791,9 +40575,9 @@ name is set to the expression's class name transformed to snake case. -
    3768class VarMap(Func):
    -3769    arg_types = {"keys": True, "values": True}
    -3770    is_var_len_args = True
    +            
    3911class VarMap(Func):
    +3912    arg_types = {"keys": True, "values": True}
    +3913    is_var_len_args = True
     
    @@ -38853,6 +40637,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38869,8 +40660,8 @@ name is set to the expression's class name transformed to snake case. -
    3774class MatchAgainst(Func):
    -3775    arg_types = {"this": True, "expressions": True, "modifier": False}
    +            
    3917class MatchAgainst(Func):
    +3918    arg_types = {"this": True, "expressions": True, "modifier": False}
     
    @@ -38930,6 +40721,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -38946,9 +40744,9 @@ name is set to the expression's class name transformed to snake case. -
    3778class Max(AggFunc):
    -3779    arg_types = {"this": True, "expressions": False}
    -3780    is_var_len_args = True
    +            
    3921class Max(AggFunc):
    +3922    arg_types = {"this": True, "expressions": False}
    +3923    is_var_len_args = True
     
    @@ -39008,6 +40806,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39024,8 +40829,8 @@ name is set to the expression's class name transformed to snake case. -
    3783class MD5(Func):
    -3784    _sql_names = ["MD5"]
    +            
    3926class MD5(Func):
    +3927    _sql_names = ["MD5"]
     
    @@ -39085,6 +40890,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39101,9 +40913,9 @@ name is set to the expression's class name transformed to snake case. -
    3787class Min(AggFunc):
    -3788    arg_types = {"this": True, "expressions": False}
    -3789    is_var_len_args = True
    +            
    3930class Min(AggFunc):
    +3931    arg_types = {"this": True, "expressions": False}
    +3932    is_var_len_args = True
     
    @@ -39163,6 +40975,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39179,8 +40998,8 @@ name is set to the expression's class name transformed to snake case. -
    3792class Month(Func):
    -3793    pass
    +            
    3935class Month(Func):
    +3936    pass
     
    @@ -39240,6 +41059,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39256,8 +41082,8 @@ name is set to the expression's class name transformed to snake case. -
    3796class Nvl2(Func):
    -3797    arg_types = {"this": True, "true": True, "false": False}
    +            
    3939class Nvl2(Func):
    +3940    arg_types = {"this": True, "true": True, "false": False}
     
    @@ -39317,6 +41143,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39333,8 +41166,8 @@ name is set to the expression's class name transformed to snake case. -
    3800class Posexplode(Func):
    -3801    pass
    +            
    3943class Posexplode(Func):
    +3944    pass
     
    @@ -39394,6 +41227,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39410,8 +41250,8 @@ name is set to the expression's class name transformed to snake case. -
    3804class Pow(Binary, Func):
    -3805    _sql_names = ["POWER", "POW"]
    +            
    3947class Pow(Binary, Func):
    +3948    _sql_names = ["POWER", "POW"]
     
    @@ -39471,6 +41311,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39487,8 +41334,8 @@ name is set to the expression's class name transformed to snake case. -
    3808class PercentileCont(AggFunc):
    -3809    pass
    +            
    3951class PercentileCont(AggFunc):
    +3952    arg_types = {"this": True, "expression": False}
     
    @@ -39548,6 +41395,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39564,8 +41418,8 @@ name is set to the expression's class name transformed to snake case. -
    3812class PercentileDisc(AggFunc):
    -3813    pass
    +            
    3955class PercentileDisc(AggFunc):
    +3956    arg_types = {"this": True, "expression": False}
     
    @@ -39625,6 +41479,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39641,8 +41502,8 @@ name is set to the expression's class name transformed to snake case. -
    3816class Quantile(AggFunc):
    -3817    arg_types = {"this": True, "quantile": True}
    +            
    3959class Quantile(AggFunc):
    +3960    arg_types = {"this": True, "quantile": True}
     
    @@ -39702,6 +41563,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39718,9 +41586,9 @@ name is set to the expression's class name transformed to snake case. -
    3822class Quantiles(AggFunc):
    -3823    arg_types = {"parameters": True, "expressions": True}
    -3824    is_var_len_args = True
    +            
    3965class Quantiles(AggFunc):
    +3966    arg_types = {"parameters": True, "expressions": True}
    +3967    is_var_len_args = True
     
    @@ -39780,6 +41648,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39796,8 +41671,8 @@ name is set to the expression's class name transformed to snake case. -
    3827class QuantileIf(AggFunc):
    -3828    arg_types = {"parameters": True, "expressions": True}
    +            
    3970class QuantileIf(AggFunc):
    +3971    arg_types = {"parameters": True, "expressions": True}
     
    @@ -39857,6 +41732,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39873,8 +41755,8 @@ name is set to the expression's class name transformed to snake case. -
    3831class ApproxQuantile(Quantile):
    -3832    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
    +            
    3974class ApproxQuantile(Quantile):
    +3975    arg_types = {"this": True, "quantile": True, "accuracy": False, "weight": False}
     
    @@ -39934,6 +41816,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -39950,8 +41839,8 @@ name is set to the expression's class name transformed to snake case. -
    3835class RangeN(Func):
    -3836    arg_types = {"this": True, "expressions": True, "each": False}
    +            
    3978class RangeN(Func):
    +3979    arg_types = {"this": True, "expressions": True, "each": False}
     
    @@ -40011,6 +41900,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40027,10 +41923,10 @@ name is set to the expression's class name transformed to snake case. -
    3839class ReadCSV(Func):
    -3840    _sql_names = ["READ_CSV"]
    -3841    is_var_len_args = True
    -3842    arg_types = {"this": True, "expressions": False}
    +            
    3982class ReadCSV(Func):
    +3983    _sql_names = ["READ_CSV"]
    +3984    is_var_len_args = True
    +3985    arg_types = {"this": True, "expressions": False}
     
    @@ -40090,6 +41986,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40106,8 +42009,8 @@ name is set to the expression's class name transformed to snake case. -
    3845class Reduce(Func):
    -3846    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
    +            
    3988class Reduce(Func):
    +3989    arg_types = {"this": True, "initial": True, "merge": True, "finish": False}
     
    @@ -40167,6 +42070,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40183,14 +42093,14 @@ name is set to the expression's class name transformed to snake case. -
    3849class RegexpExtract(Func):
    -3850    arg_types = {
    -3851        "this": True,
    -3852        "expression": True,
    -3853        "position": False,
    -3854        "occurrence": False,
    -3855        "group": False,
    -3856    }
    +            
    3992class RegexpExtract(Func):
    +3993    arg_types = {
    +3994        "this": True,
    +3995        "expression": True,
    +3996        "position": False,
    +3997        "occurrence": False,
    +3998        "group": False,
    +3999    }
     
    @@ -40250,6 +42160,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40266,8 +42183,8 @@ name is set to the expression's class name transformed to snake case. -
    3859class RegexpLike(Func):
    -3860    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    4002class RegexpLike(Func):
    +4003    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -40327,6 +42244,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40343,8 +42267,8 @@ name is set to the expression's class name transformed to snake case. -
    3863class RegexpILike(Func):
    -3864    arg_types = {"this": True, "expression": True, "flag": False}
    +            
    4006class RegexpILike(Func):
    +4007    arg_types = {"this": True, "expression": True, "flag": False}
     
    @@ -40404,6 +42328,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40420,8 +42351,8 @@ name is set to the expression's class name transformed to snake case. -
    3869class RegexpSplit(Func):
    -3870    arg_types = {"this": True, "expression": True, "limit": False}
    +            
    4012class RegexpSplit(Func):
    +4013    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -40481,6 +42412,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40497,8 +42435,8 @@ name is set to the expression's class name transformed to snake case. -
    3873class Repeat(Func):
    -3874    arg_types = {"this": True, "times": True}
    +            
    4016class Repeat(Func):
    +4017    arg_types = {"this": True, "times": True}
     
    @@ -40558,6 +42496,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40574,8 +42519,8 @@ name is set to the expression's class name transformed to snake case. -
    3877class Round(Func):
    -3878    arg_types = {"this": True, "decimals": False}
    +            
    4020class Round(Func):
    +4021    arg_types = {"this": True, "decimals": False}
     
    @@ -40635,6 +42580,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40651,8 +42603,8 @@ name is set to the expression's class name transformed to snake case. -
    3881class RowNumber(Func):
    -3882    arg_types: t.Dict[str, t.Any] = {}
    +            
    4024class RowNumber(Func):
    +4025    arg_types: t.Dict[str, t.Any] = {}
     
    @@ -40712,6 +42664,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40728,8 +42687,8 @@ name is set to the expression's class name transformed to snake case. -
    3885class SafeDivide(Func):
    -3886    arg_types = {"this": True, "expression": True}
    +            
    4028class SafeDivide(Func):
    +4029    arg_types = {"this": True, "expression": True}
     
    @@ -40789,6 +42748,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40805,8 +42771,8 @@ name is set to the expression's class name transformed to snake case. -
    3889class SetAgg(AggFunc):
    -3890    pass
    +            
    4032class SetAgg(AggFunc):
    +4033    pass
     
    @@ -40866,6 +42832,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40882,8 +42855,8 @@ name is set to the expression's class name transformed to snake case. -
    3893class SHA(Func):
    -3894    _sql_names = ["SHA", "SHA1"]
    +            
    4036class SHA(Func):
    +4037    _sql_names = ["SHA", "SHA1"]
     
    @@ -40943,6 +42916,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -40959,9 +42939,9 @@ name is set to the expression's class name transformed to snake case. -
    3897class SHA2(Func):
    -3898    _sql_names = ["SHA2"]
    -3899    arg_types = {"this": True, "length": False}
    +            
    4040class SHA2(Func):
    +4041    _sql_names = ["SHA2"]
    +4042    arg_types = {"this": True, "length": False}
     
    @@ -41021,6 +43001,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41037,8 +43024,8 @@ name is set to the expression's class name transformed to snake case. -
    3902class SortArray(Func):
    -3903    arg_types = {"this": True, "asc": False}
    +            
    4045class SortArray(Func):
    +4046    arg_types = {"this": True, "asc": False}
     
    @@ -41098,6 +43085,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41114,8 +43108,8 @@ name is set to the expression's class name transformed to snake case. -
    3906class Split(Func):
    -3907    arg_types = {"this": True, "expression": True, "limit": False}
    +            
    4049class Split(Func):
    +4050    arg_types = {"this": True, "expression": True, "limit": False}
     
    @@ -41175,6 +43169,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41191,8 +43192,8 @@ name is set to the expression's class name transformed to snake case. -
    3912class Substring(Func):
    -3913    arg_types = {"this": True, "start": False, "length": False}
    +            
    4055class Substring(Func):
    +4056    arg_types = {"this": True, "start": False, "length": False}
     
    @@ -41252,6 +43253,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41268,13 +43276,13 @@ name is set to the expression's class name transformed to snake case. -
    3916class StrPosition(Func):
    -3917    arg_types = {
    -3918        "this": True,
    -3919        "substr": True,
    -3920        "position": False,
    -3921        "instance": False,
    -3922    }
    +            
    4059class StrPosition(Func):
    +4060    arg_types = {
    +4061        "this": True,
    +4062        "substr": True,
    +4063        "position": False,
    +4064        "instance": False,
    +4065    }
     
    @@ -41334,6 +43342,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41350,8 +43365,8 @@ name is set to the expression's class name transformed to snake case. -
    3925class StrToDate(Func):
    -3926    arg_types = {"this": True, "format": True}
    +            
    4068class StrToDate(Func):
    +4069    arg_types = {"this": True, "format": True}
     
    @@ -41411,6 +43426,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41427,8 +43449,8 @@ name is set to the expression's class name transformed to snake case. -
    3929class StrToTime(Func):
    -3930    arg_types = {"this": True, "format": True}
    +            
    4072class StrToTime(Func):
    +4073    arg_types = {"this": True, "format": True}
     
    @@ -41488,6 +43510,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41504,8 +43533,8 @@ name is set to the expression's class name transformed to snake case. -
    3935class StrToUnix(Func):
    -3936    arg_types = {"this": False, "format": False}
    +            
    4078class StrToUnix(Func):
    +4079    arg_types = {"this": False, "format": False}
     
    @@ -41565,6 +43594,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41581,8 +43617,8 @@ name is set to the expression's class name transformed to snake case. -
    3939class NumberToStr(Func):
    -3940    arg_types = {"this": True, "format": True}
    +            
    4082class NumberToStr(Func):
    +4083    arg_types = {"this": True, "format": True}
     
    @@ -41642,6 +43678,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41658,9 +43701,9 @@ name is set to the expression's class name transformed to snake case. -
    3943class Struct(Func):
    -3944    arg_types = {"expressions": True}
    -3945    is_var_len_args = True
    +            
    4086class Struct(Func):
    +4087    arg_types = {"expressions": True}
    +4088    is_var_len_args = True
     
    @@ -41720,6 +43763,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41736,8 +43786,8 @@ name is set to the expression's class name transformed to snake case. -
    3948class StructExtract(Func):
    -3949    arg_types = {"this": True, "expression": True}
    +            
    4091class StructExtract(Func):
    +4092    arg_types = {"this": True, "expression": True}
     
    @@ -41797,6 +43847,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41813,8 +43870,8 @@ name is set to the expression's class name transformed to snake case. -
    3952class Sum(AggFunc):
    -3953    pass
    +            
    4095class Sum(AggFunc):
    +4096    pass
     
    @@ -41874,6 +43931,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41890,8 +43954,8 @@ name is set to the expression's class name transformed to snake case. -
    3956class Sqrt(Func):
    -3957    pass
    +            
    4099class Sqrt(Func):
    +4100    pass
     
    @@ -41951,6 +44015,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -41967,8 +44038,8 @@ name is set to the expression's class name transformed to snake case. -
    3960class Stddev(AggFunc):
    -3961    pass
    +            
    4103class Stddev(AggFunc):
    +4104    pass
     
    @@ -42028,6 +44099,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42044,8 +44122,8 @@ name is set to the expression's class name transformed to snake case. -
    3964class StddevPop(AggFunc):
    -3965    pass
    +            
    4107class StddevPop(AggFunc):
    +4108    pass
     
    @@ -42105,6 +44183,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42121,8 +44206,8 @@ name is set to the expression's class name transformed to snake case. -
    3968class StddevSamp(AggFunc):
    -3969    pass
    +            
    4111class StddevSamp(AggFunc):
    +4112    pass
     
    @@ -42182,6 +44267,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42198,8 +44290,8 @@ name is set to the expression's class name transformed to snake case. -
    3972class TimeToStr(Func):
    -3973    arg_types = {"this": True, "format": True}
    +            
    4115class TimeToStr(Func):
    +4116    arg_types = {"this": True, "format": True}
     
    @@ -42259,6 +44351,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42275,8 +44374,8 @@ name is set to the expression's class name transformed to snake case. -
    3976class TimeToTimeStr(Func):
    -3977    pass
    +            
    4119class TimeToTimeStr(Func):
    +4120    pass
     
    @@ -42336,6 +44435,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42352,8 +44458,8 @@ name is set to the expression's class name transformed to snake case. -
    3980class TimeToUnix(Func):
    -3981    pass
    +            
    4123class TimeToUnix(Func):
    +4124    pass
     
    @@ -42413,6 +44519,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42429,8 +44542,8 @@ name is set to the expression's class name transformed to snake case. -
    3984class TimeStrToDate(Func):
    -3985    pass
    +            
    4127class TimeStrToDate(Func):
    +4128    pass
     
    @@ -42490,6 +44603,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42506,8 +44626,8 @@ name is set to the expression's class name transformed to snake case. -
    3988class TimeStrToTime(Func):
    -3989    pass
    +            
    4131class TimeStrToTime(Func):
    +4132    pass
     
    @@ -42567,6 +44687,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42583,8 +44710,8 @@ name is set to the expression's class name transformed to snake case. -
    3992class TimeStrToUnix(Func):
    -3993    pass
    +            
    4135class TimeStrToUnix(Func):
    +4136    pass
     
    @@ -42644,6 +44771,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42660,13 +44794,13 @@ name is set to the expression's class name transformed to snake case. -
    3996class Trim(Func):
    -3997    arg_types = {
    -3998        "this": True,
    -3999        "expression": False,
    -4000        "position": False,
    -4001        "collation": False,
    -4002    }
    +            
    4139class Trim(Func):
    +4140    arg_types = {
    +4141        "this": True,
    +4142        "expression": False,
    +4143        "position": False,
    +4144        "collation": False,
    +4145    }
     
    @@ -42726,6 +44860,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42742,8 +44883,8 @@ name is set to the expression's class name transformed to snake case. -
    4005class TsOrDsAdd(Func, TimeUnit):
    -4006    arg_types = {"this": True, "expression": True, "unit": False}
    +            
    4148class TsOrDsAdd(Func, TimeUnit):
    +4149    arg_types = {"this": True, "expression": True, "unit": False}
     
    @@ -42767,6 +44908,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    Expression
    @@ -42822,8 +44970,8 @@ name is set to the expression's class name transformed to snake case.
    -
    4009class TsOrDsToDateStr(Func):
    -4010    pass
    +            
    4152class TsOrDsToDateStr(Func):
    +4153    pass
     
    @@ -42883,6 +45031,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42899,8 +45054,8 @@ name is set to the expression's class name transformed to snake case. -
    4013class TsOrDsToDate(Func):
    -4014    arg_types = {"this": True, "format": False}
    +            
    4156class TsOrDsToDate(Func):
    +4157    arg_types = {"this": True, "format": False}
     
    @@ -42960,6 +45115,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -42976,8 +45138,8 @@ name is set to the expression's class name transformed to snake case. -
    4017class TsOrDiToDi(Func):
    -4018    pass
    +            
    4160class TsOrDiToDi(Func):
    +4161    pass
     
    @@ -43037,6 +45199,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43053,8 +45222,8 @@ name is set to the expression's class name transformed to snake case. -
    4021class Unhex(Func):
    -4022    pass
    +            
    4164class Unhex(Func):
    +4165    pass
     
    @@ -43114,6 +45283,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43130,8 +45306,8 @@ name is set to the expression's class name transformed to snake case. -
    4025class UnixToStr(Func):
    -4026    arg_types = {"this": True, "format": False}
    +            
    4168class UnixToStr(Func):
    +4169    arg_types = {"this": True, "format": False}
     
    @@ -43191,6 +45367,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43207,12 +45390,12 @@ name is set to the expression's class name transformed to snake case. -
    4031class UnixToTime(Func):
    -4032    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    -4033
    -4034    SECONDS = Literal.string("seconds")
    -4035    MILLIS = Literal.string("millis")
    -4036    MICROS = Literal.string("micros")
    +            
    4174class UnixToTime(Func):
    +4175    arg_types = {"this": True, "scale": False, "zone": False, "hours": False, "minutes": False}
    +4176
    +4177    SECONDS = Literal.string("seconds")
    +4178    MILLIS = Literal.string("millis")
    +4179    MICROS = Literal.string("micros")
     
    @@ -43272,6 +45455,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43288,8 +45478,8 @@ name is set to the expression's class name transformed to snake case. -
    4039class UnixToTimeStr(Func):
    -4040    pass
    +            
    4182class UnixToTimeStr(Func):
    +4183    pass
     
    @@ -43349,6 +45539,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43365,8 +45562,8 @@ name is set to the expression's class name transformed to snake case. -
    4043class Upper(Func):
    -4044    _sql_names = ["UPPER", "UCASE"]
    +            
    4186class Upper(Func):
    +4187    _sql_names = ["UPPER", "UCASE"]
     
    @@ -43426,6 +45623,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43442,8 +45646,8 @@ name is set to the expression's class name transformed to snake case. -
    4047class Variance(AggFunc):
    -4048    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
    +            
    4190class Variance(AggFunc):
    +4191    _sql_names = ["VARIANCE", "VARIANCE_SAMP", "VAR_SAMP"]
     
    @@ -43503,6 +45707,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43519,8 +45730,8 @@ name is set to the expression's class name transformed to snake case. -
    4051class VariancePop(AggFunc):
    -4052    _sql_names = ["VARIANCE_POP", "VAR_POP"]
    +            
    4194class VariancePop(AggFunc):
    +4195    _sql_names = ["VARIANCE_POP", "VAR_POP"]
     
    @@ -43580,6 +45791,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43596,8 +45814,8 @@ name is set to the expression's class name transformed to snake case. -
    4055class Week(Func):
    -4056    arg_types = {"this": True, "mode": False}
    +            
    4198class Week(Func):
    +4199    arg_types = {"this": True, "mode": False}
     
    @@ -43657,6 +45875,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43673,8 +45898,8 @@ name is set to the expression's class name transformed to snake case. -
    4059class XMLTable(Func):
    -4060    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
    +            
    4202class XMLTable(Func):
    +4203    arg_types = {"this": True, "passing": False, "columns": False, "by_ref": False}
     
    @@ -43734,6 +45959,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43750,8 +45982,8 @@ name is set to the expression's class name transformed to snake case. -
    4063class Year(Func):
    -4064    pass
    +            
    4206class Year(Func):
    +4207    pass
     
    @@ -43811,6 +46043,13 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    @@ -43827,8 +46066,8 @@ name is set to the expression's class name transformed to snake case. -
    4067class Use(Expression):
    -4068    arg_types = {"this": True, "kind": False}
    +            
    4210class Use(Expression):
    +4211    arg_types = {"this": True, "kind": False}
     
    @@ -43891,8 +46130,8 @@ name is set to the expression's class name transformed to snake case.
    -
    4071class Merge(Expression):
    -4072    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
    +            
    4214class Merge(Expression):
    +4215    arg_types = {"this": True, "using": True, "on": True, "expressions": True}
     
    @@ -43955,8 +46194,8 @@ name is set to the expression's class name transformed to snake case.
    -
    4075class When(Func):
    -4076    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
    +            
    4218class When(Func):
    +4219    arg_types = {"matched": True, "source": False, "condition": False, "then": True}
     
    @@ -44016,6 +46255,97 @@ name is set to the expression's class name transformed to snake case.
    and_
    or_
    not_
    +
    isin
    +
    between
    +
    like
    +
    ilike
    +
    eq
    +
    neq
    +
    rlike
    + +
    + + + +
    + +
    + + class + NextValueFor(Func): + + + +
    + +
    4224class NextValueFor(Func):
    +4225    arg_types = {"this": True, "order": False}
    +
    + + + + +
    +
    Inherited Members
    +
    + + +
    @@ -44032,48 +46362,48 @@ name is set to the expression's class name transformed to snake case.
    -
    4113def maybe_parse(
    -4114    sql_or_expression: ExpOrStr,
    -4115    *,
    -4116    into: t.Optional[IntoType] = None,
    -4117    dialect: DialectType = None,
    -4118    prefix: t.Optional[str] = None,
    -4119    copy: bool = False,
    -4120    **opts,
    -4121) -> Expression:
    -4122    """Gracefully handle a possible string or expression.
    -4123
    -4124    Example:
    -4125        >>> maybe_parse("1")
    -4126        (LITERAL this: 1, is_string: False)
    -4127        >>> maybe_parse(to_identifier("x"))
    -4128        (IDENTIFIER this: x, quoted: False)
    -4129
    -4130    Args:
    -4131        sql_or_expression: the SQL code string or an expression
    -4132        into: the SQLGlot Expression to parse into
    -4133        dialect: the dialect used to parse the input expressions (in the case that an
    -4134            input expression is a SQL string).
    -4135        prefix: a string to prefix the sql with before it gets parsed
    -4136            (automatically includes a space)
    -4137        copy: whether or not to copy the expression.
    -4138        **opts: other options to use to parse the input expressions (again, in the case
    -4139            that an input expression is a SQL string).
    -4140
    -4141    Returns:
    -4142        Expression: the parsed or given expression.
    -4143    """
    -4144    if isinstance(sql_or_expression, Expression):
    -4145        if copy:
    -4146            return sql_or_expression.copy()
    -4147        return sql_or_expression
    -4148
    -4149    import sqlglot
    -4150
    -4151    sql = str(sql_or_expression)
    -4152    if prefix:
    -4153        sql = f"{prefix} {sql}"
    -4154    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
    +            
    4262def maybe_parse(
    +4263    sql_or_expression: ExpOrStr,
    +4264    *,
    +4265    into: t.Optional[IntoType] = None,
    +4266    dialect: DialectType = None,
    +4267    prefix: t.Optional[str] = None,
    +4268    copy: bool = False,
    +4269    **opts,
    +4270) -> Expression:
    +4271    """Gracefully handle a possible string or expression.
    +4272
    +4273    Example:
    +4274        >>> maybe_parse("1")
    +4275        (LITERAL this: 1, is_string: False)
    +4276        >>> maybe_parse(to_identifier("x"))
    +4277        (IDENTIFIER this: x, quoted: False)
    +4278
    +4279    Args:
    +4280        sql_or_expression: the SQL code string or an expression
    +4281        into: the SQLGlot Expression to parse into
    +4282        dialect: the dialect used to parse the input expressions (in the case that an
    +4283            input expression is a SQL string).
    +4284        prefix: a string to prefix the sql with before it gets parsed
    +4285            (automatically includes a space)
    +4286        copy: whether or not to copy the expression.
    +4287        **opts: other options to use to parse the input expressions (again, in the case
    +4288            that an input expression is a SQL string).
    +4289
    +4290    Returns:
    +4291        Expression: the parsed or given expression.
    +4292    """
    +4293    if isinstance(sql_or_expression, Expression):
    +4294        if copy:
    +4295            return sql_or_expression.copy()
    +4296        return sql_or_expression
    +4297
    +4298    import sqlglot
    +4299
    +4300    sql = str(sql_or_expression)
    +4301    if prefix:
    +4302        sql = f"{prefix} {sql}"
    +4303    return sqlglot.parse_one(sql, read=dialect, into=into, **opts)
     
    @@ -44125,29 +46455,29 @@ that an input expression is a SQL string).
    -
    4300def union(left, right, distinct=True, dialect=None, **opts):
    -4301    """
    -4302    Initializes a syntax tree from one UNION expression.
    -4303
    -4304    Example:
    -4305        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4306        'SELECT * FROM foo UNION SELECT * FROM bla'
    -4307
    -4308    Args:
    -4309        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4310            If an `Expression` instance is passed, it will be used as-is.
    -4311        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4312            If an `Expression` instance is passed, it will be used as-is.
    -4313        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4314        dialect (str): the dialect used to parse the input expression.
    -4315        opts (kwargs): other options to use to parse the input expressions.
    -4316    Returns:
    -4317        Union: the syntax tree for the UNION expression.
    -4318    """
    -4319    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4320    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4321
    -4322    return Union(this=left, expression=right, distinct=distinct)
    +            
    4451def union(left, right, distinct=True, dialect=None, **opts):
    +4452    """
    +4453    Initializes a syntax tree from one UNION expression.
    +4454
    +4455    Example:
    +4456        >>> union("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4457        'SELECT * FROM foo UNION SELECT * FROM bla'
    +4458
    +4459    Args:
    +4460        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4461            If an `Expression` instance is passed, it will be used as-is.
    +4462        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4463            If an `Expression` instance is passed, it will be used as-is.
    +4464        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4465        dialect (str): the dialect used to parse the input expression.
    +4466        opts (kwargs): other options to use to parse the input expressions.
    +4467    Returns:
    +4468        Union: the syntax tree for the UNION expression.
    +4469    """
    +4470    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4471    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4472
    +4473    return Union(this=left, expression=right, distinct=distinct)
     
    @@ -44195,29 +46525,29 @@ If an Expression instance is passed, it w
    -
    4325def intersect(left, right, distinct=True, dialect=None, **opts):
    -4326    """
    -4327    Initializes a syntax tree from one INTERSECT expression.
    -4328
    -4329    Example:
    -4330        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4331        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    -4332
    -4333    Args:
    -4334        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4335            If an `Expression` instance is passed, it will be used as-is.
    -4336        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4337            If an `Expression` instance is passed, it will be used as-is.
    -4338        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4339        dialect (str): the dialect used to parse the input expression.
    -4340        opts (kwargs): other options to use to parse the input expressions.
    -4341    Returns:
    -4342        Intersect: the syntax tree for the INTERSECT expression.
    -4343    """
    -4344    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4345    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4346
    -4347    return Intersect(this=left, expression=right, distinct=distinct)
    +            
    4476def intersect(left, right, distinct=True, dialect=None, **opts):
    +4477    """
    +4478    Initializes a syntax tree from one INTERSECT expression.
    +4479
    +4480    Example:
    +4481        >>> intersect("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4482        'SELECT * FROM foo INTERSECT SELECT * FROM bla'
    +4483
    +4484    Args:
    +4485        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4486            If an `Expression` instance is passed, it will be used as-is.
    +4487        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4488            If an `Expression` instance is passed, it will be used as-is.
    +4489        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4490        dialect (str): the dialect used to parse the input expression.
    +4491        opts (kwargs): other options to use to parse the input expressions.
    +4492    Returns:
    +4493        Intersect: the syntax tree for the INTERSECT expression.
    +4494    """
    +4495    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4496    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4497
    +4498    return Intersect(this=left, expression=right, distinct=distinct)
     
    @@ -44265,29 +46595,29 @@ If an Expression instance is passed, it w
    -
    4350def except_(left, right, distinct=True, dialect=None, **opts):
    -4351    """
    -4352    Initializes a syntax tree from one EXCEPT expression.
    -4353
    -4354    Example:
    -4355        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    -4356        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    -4357
    -4358    Args:
    -4359        left (str | Expression): the SQL code string corresponding to the left-hand side.
    -4360            If an `Expression` instance is passed, it will be used as-is.
    -4361        right (str | Expression): the SQL code string corresponding to the right-hand side.
    -4362            If an `Expression` instance is passed, it will be used as-is.
    -4363        distinct (bool): set the DISTINCT flag if and only if this is true.
    -4364        dialect (str): the dialect used to parse the input expression.
    -4365        opts (kwargs): other options to use to parse the input expressions.
    -4366    Returns:
    -4367        Except: the syntax tree for the EXCEPT statement.
    -4368    """
    -4369    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    -4370    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    -4371
    -4372    return Except(this=left, expression=right, distinct=distinct)
    +            
    4501def except_(left, right, distinct=True, dialect=None, **opts):
    +4502    """
    +4503    Initializes a syntax tree from one EXCEPT expression.
    +4504
    +4505    Example:
    +4506        >>> except_("SELECT * FROM foo", "SELECT * FROM bla").sql()
    +4507        'SELECT * FROM foo EXCEPT SELECT * FROM bla'
    +4508
    +4509    Args:
    +4510        left (str | Expression): the SQL code string corresponding to the left-hand side.
    +4511            If an `Expression` instance is passed, it will be used as-is.
    +4512        right (str | Expression): the SQL code string corresponding to the right-hand side.
    +4513            If an `Expression` instance is passed, it will be used as-is.
    +4514        distinct (bool): set the DISTINCT flag if and only if this is true.
    +4515        dialect (str): the dialect used to parse the input expression.
    +4516        opts (kwargs): other options to use to parse the input expressions.
    +4517    Returns:
    +4518        Except: the syntax tree for the EXCEPT statement.
    +4519    """
    +4520    left = maybe_parse(sql_or_expression=left, dialect=dialect, **opts)
    +4521    right = maybe_parse(sql_or_expression=right, dialect=dialect, **opts)
    +4522
    +4523    return Except(this=left, expression=right, distinct=distinct)
     
    @@ -44335,26 +46665,26 @@ If an Expression instance is passed, it w
    -
    4375def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    -4376    """
    -4377    Initializes a syntax tree from one or multiple SELECT expressions.
    -4378
    -4379    Example:
    -4380        >>> select("col1", "col2").from_("tbl").sql()
    -4381        'SELECT col1, col2 FROM tbl'
    -4382
    -4383    Args:
    -4384        *expressions: the SQL code string to parse as the expressions of a
    -4385            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4386        dialect: the dialect used to parse the input expressions (in the case that an
    -4387            input expression is a SQL string).
    -4388        **opts: other options to use to parse the input expressions (again, in the case
    -4389            that an input expression is a SQL string).
    -4390
    -4391    Returns:
    -4392        Select: the syntax tree for the SELECT statement.
    -4393    """
    -4394    return Select().select(*expressions, dialect=dialect, **opts)
    +            
    4526def select(*expressions: ExpOrStr, dialect: DialectType = None, **opts) -> Select:
    +4527    """
    +4528    Initializes a syntax tree from one or multiple SELECT expressions.
    +4529
    +4530    Example:
    +4531        >>> select("col1", "col2").from_("tbl").sql()
    +4532        'SELECT col1, col2 FROM tbl'
    +4533
    +4534    Args:
    +4535        *expressions: the SQL code string to parse as the expressions of a
    +4536            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4537        dialect: the dialect used to parse the input expressions (in the case that an
    +4538            input expression is a SQL string).
    +4539        **opts: other options to use to parse the input expressions (again, in the case
    +4540            that an input expression is a SQL string).
    +4541
    +4542    Returns:
    +4543        Select: the syntax tree for the SELECT statement.
    +4544    """
    +4545    return Select().select(*expressions, dialect=dialect, **opts)
     
    @@ -44401,26 +46731,26 @@ that an input expression is a SQL string).
    -
    4397def from_(*expressions, dialect=None, **opts) -> Select:
    -4398    """
    -4399    Initializes a syntax tree from a FROM expression.
    -4400
    -4401    Example:
    -4402        >>> from_("tbl").select("col1", "col2").sql()
    -4403        'SELECT col1, col2 FROM tbl'
    -4404
    -4405    Args:
    -4406        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    -4407            SELECT statement. If an Expression instance is passed, this is used as-is.
    -4408        dialect (str): the dialect used to parse the input expression (in the case that the
    -4409            input expression is a SQL string).
    -4410        **opts: other options to use to parse the input expressions (again, in the case
    -4411            that the input expression is a SQL string).
    -4412
    -4413    Returns:
    -4414        Select: the syntax tree for the SELECT statement.
    -4415    """
    -4416    return Select().from_(*expressions, dialect=dialect, **opts)
    +            
    4548def from_(*expressions, dialect=None, **opts) -> Select:
    +4549    """
    +4550    Initializes a syntax tree from a FROM expression.
    +4551
    +4552    Example:
    +4553        >>> from_("tbl").select("col1", "col2").sql()
    +4554        'SELECT col1, col2 FROM tbl'
    +4555
    +4556    Args:
    +4557        *expressions (str | Expression): the SQL code string to parse as the FROM expressions of a
    +4558            SELECT statement. If an Expression instance is passed, this is used as-is.
    +4559        dialect (str): the dialect used to parse the input expression (in the case that the
    +4560            input expression is a SQL string).
    +4561        **opts: other options to use to parse the input expressions (again, in the case
    +4562            that the input expression is a SQL string).
    +4563
    +4564    Returns:
    +4565        Select: the syntax tree for the SELECT statement.
    +4566    """
    +4567    return Select().from_(*expressions, dialect=dialect, **opts)
     
    @@ -44467,53 +46797,53 @@ that the input expression is a SQL string).
    -
    4419def update(
    -4420    table: str | Table,
    -4421    properties: dict,
    -4422    where: t.Optional[ExpOrStr] = None,
    -4423    from_: t.Optional[ExpOrStr] = None,
    -4424    dialect: DialectType = None,
    -4425    **opts,
    -4426) -> Update:
    -4427    """
    -4428    Creates an update statement.
    -4429
    -4430    Example:
    -4431        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    -4432        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    -4433
    -4434    Args:
    -4435        *properties: dictionary of properties to set which are
    -4436            auto converted to sql objects eg None -> NULL
    -4437        where: sql conditional parsed into a WHERE statement
    -4438        from_: sql statement parsed into a FROM statement
    -4439        dialect: the dialect used to parse the input expressions.
    -4440        **opts: other options to use to parse the input expressions.
    -4441
    -4442    Returns:
    -4443        Update: the syntax tree for the UPDATE statement.
    -4444    """
    -4445    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    -4446    update_expr.set(
    -4447        "expressions",
    -4448        [
    -4449            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    -4450            for k, v in properties.items()
    -4451        ],
    -4452    )
    -4453    if from_:
    -4454        update_expr.set(
    -4455            "from",
    -4456            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    -4457        )
    -4458    if isinstance(where, Condition):
    -4459        where = Where(this=where)
    -4460    if where:
    -4461        update_expr.set(
    -4462            "where",
    -4463            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    -4464        )
    -4465    return update_expr
    +            
    4570def update(
    +4571    table: str | Table,
    +4572    properties: dict,
    +4573    where: t.Optional[ExpOrStr] = None,
    +4574    from_: t.Optional[ExpOrStr] = None,
    +4575    dialect: DialectType = None,
    +4576    **opts,
    +4577) -> Update:
    +4578    """
    +4579    Creates an update statement.
    +4580
    +4581    Example:
    +4582        >>> update("my_table", {"x": 1, "y": "2", "z": None}, from_="baz", where="id > 1").sql()
    +4583        "UPDATE my_table SET x = 1, y = '2', z = NULL FROM baz WHERE id > 1"
    +4584
    +4585    Args:
    +4586        *properties: dictionary of properties to set which are
    +4587            auto converted to sql objects eg None -> NULL
    +4588        where: sql conditional parsed into a WHERE statement
    +4589        from_: sql statement parsed into a FROM statement
    +4590        dialect: the dialect used to parse the input expressions.
    +4591        **opts: other options to use to parse the input expressions.
    +4592
    +4593    Returns:
    +4594        Update: the syntax tree for the UPDATE statement.
    +4595    """
    +4596    update_expr = Update(this=maybe_parse(table, into=Table, dialect=dialect))
    +4597    update_expr.set(
    +4598        "expressions",
    +4599        [
    +4600            EQ(this=maybe_parse(k, dialect=dialect, **opts), expression=convert(v))
    +4601            for k, v in properties.items()
    +4602        ],
    +4603    )
    +4604    if from_:
    +4605        update_expr.set(
    +4606            "from",
    +4607            maybe_parse(from_, into=From, dialect=dialect, prefix="FROM", **opts),
    +4608        )
    +4609    if isinstance(where, Condition):
    +4610        where = Where(this=where)
    +4611    if where:
    +4612        update_expr.set(
    +4613            "where",
    +4614            maybe_parse(where, into=Where, dialect=dialect, prefix="WHERE", **opts),
    +4615        )
    +4616    return update_expr
     
    @@ -44560,35 +46890,35 @@ auto converted to sql objects eg None -> NULL
    -
    4468def delete(
    -4469    table: ExpOrStr,
    -4470    where: t.Optional[ExpOrStr] = None,
    -4471    returning: t.Optional[ExpOrStr] = None,
    -4472    dialect: DialectType = None,
    -4473    **opts,
    -4474) -> Delete:
    -4475    """
    -4476    Builds a delete statement.
    -4477
    -4478    Example:
    -4479        >>> delete("my_table", where="id > 1").sql()
    -4480        'DELETE FROM my_table WHERE id > 1'
    -4481
    -4482    Args:
    -4483        where: sql conditional parsed into a WHERE statement
    -4484        returning: sql conditional parsed into a RETURNING statement
    -4485        dialect: the dialect used to parse the input expressions.
    -4486        **opts: other options to use to parse the input expressions.
    -4487
    -4488    Returns:
    -4489        Delete: the syntax tree for the DELETE statement.
    -4490    """
    -4491    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    -4492    if where:
    -4493        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    -4494    if returning:
    -4495        delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    -4496    return delete_expr
    +            
    4619def delete(
    +4620    table: ExpOrStr,
    +4621    where: t.Optional[ExpOrStr] = None,
    +4622    returning: t.Optional[ExpOrStr] = None,
    +4623    dialect: DialectType = None,
    +4624    **opts,
    +4625) -> Delete:
    +4626    """
    +4627    Builds a delete statement.
    +4628
    +4629    Example:
    +4630        >>> delete("my_table", where="id > 1").sql()
    +4631        'DELETE FROM my_table WHERE id > 1'
    +4632
    +4633    Args:
    +4634        where: sql conditional parsed into a WHERE statement
    +4635        returning: sql conditional parsed into a RETURNING statement
    +4636        dialect: the dialect used to parse the input expressions.
    +4637        **opts: other options to use to parse the input expressions.
    +4638
    +4639    Returns:
    +4640        Delete: the syntax tree for the DELETE statement.
    +4641    """
    +4642    delete_expr = Delete().delete(table, dialect=dialect, copy=False, **opts)
    +4643    if where:
    +4644        delete_expr = delete_expr.where(where, dialect=dialect, copy=False, **opts)
    +4645    if returning:
    +4646        delete_expr = delete_expr.returning(returning, dialect=dialect, copy=False, **opts)
    +4647    return delete_expr
     
    @@ -44627,43 +46957,45 @@ auto converted to sql objects eg None -> NULL
    def - condition(expression, dialect=None, **opts) -> sqlglot.expressions.Condition: + condition( expression, dialect=None, copy=True, **opts) -> sqlglot.expressions.Condition:
    -
    4499def condition(expression, dialect=None, **opts) -> Condition:
    -4500    """
    -4501    Initialize a logical condition expression.
    -4502
    -4503    Example:
    -4504        >>> condition("x=1").sql()
    -4505        'x = 1'
    -4506
    -4507        This is helpful for composing larger logical syntax trees:
    -4508        >>> where = condition("x=1")
    -4509        >>> where = where.and_("y=1")
    -4510        >>> Select().from_("tbl").select("*").where(where).sql()
    -4511        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    -4512
    -4513    Args:
    -4514        *expression (str | Expression): the SQL code string to parse.
    -4515            If an Expression instance is passed, this is used as-is.
    -4516        dialect (str): the dialect used to parse the input expression (in the case that the
    -4517            input expression is a SQL string).
    -4518        **opts: other options to use to parse the input expressions (again, in the case
    -4519            that the input expression is a SQL string).
    -4520
    -4521    Returns:
    -4522        Condition: the expression
    -4523    """
    -4524    return maybe_parse(  # type: ignore
    -4525        expression,
    -4526        into=Condition,
    -4527        dialect=dialect,
    -4528        **opts,
    -4529    )
    +            
    4650def condition(expression, dialect=None, copy=True, **opts) -> Condition:
    +4651    """
    +4652    Initialize a logical condition expression.
    +4653
    +4654    Example:
    +4655        >>> condition("x=1").sql()
    +4656        'x = 1'
    +4657
    +4658        This is helpful for composing larger logical syntax trees:
    +4659        >>> where = condition("x=1")
    +4660        >>> where = where.and_("y=1")
    +4661        >>> Select().from_("tbl").select("*").where(where).sql()
    +4662        'SELECT * FROM tbl WHERE x = 1 AND y = 1'
    +4663
    +4664    Args:
    +4665        *expression (str | Expression): the SQL code string to parse.
    +4666            If an Expression instance is passed, this is used as-is.
    +4667        dialect (str): the dialect used to parse the input expression (in the case that the
    +4668            input expression is a SQL string).
    +4669        copy (bool): Whether or not to copy `expression` (only applies to expressions).
    +4670        **opts: other options to use to parse the input expressions (again, in the case
    +4671            that the input expression is a SQL string).
    +4672
    +4673    Returns:
    +4674        Condition: the expression
    +4675    """
    +4676    return maybe_parse(  # type: ignore
    +4677        expression,
    +4678        into=Condition,
    +4679        dialect=dialect,
    +4680        copy=copy,
    +4681        **opts,
    +4682    )
     
    @@ -44696,6 +47028,7 @@ auto converted to sql objects eg None -> NULL If an Expression instance is passed, this is used as-is.
  • dialect (str): the dialect used to parse the input expression (in the case that the input expression is a SQL string).
  • +
  • copy (bool): Whether or not to copy expression (only applies to expressions).
  • **opts: other options to use to parse the input expressions (again, in the case that the input expression is a SQL string).
  • @@ -44714,30 +47047,31 @@ that the input expression is a SQL string).
    def - and_(*expressions, dialect=None, **opts) -> sqlglot.expressions.And: + and_(*expressions, dialect=None, copy=True, **opts) -> sqlglot.expressions.And:
    -
    4532def and_(*expressions, dialect=None, **opts) -> And:
    -4533    """
    -4534    Combine multiple conditions with an AND logical operator.
    -4535
    -4536    Example:
    -4537        >>> and_("x=1", and_("y=1", "z=1")).sql()
    -4538        'x = 1 AND (y = 1 AND z = 1)'
    -4539
    -4540    Args:
    -4541        *expressions (str | Expression): the SQL code strings to parse.
    -4542            If an Expression instance is passed, this is used as-is.
    -4543        dialect (str): the dialect used to parse the input expression.
    -4544        **opts: other options to use to parse the input expressions.
    -4545
    -4546    Returns:
    -4547        And: the new condition
    -4548    """
    -4549    return _combine(expressions, And, dialect, **opts)
    +            
    4685def and_(*expressions, dialect=None, copy=True, **opts) -> And:
    +4686    """
    +4687    Combine multiple conditions with an AND logical operator.
    +4688
    +4689    Example:
    +4690        >>> and_("x=1", and_("y=1", "z=1")).sql()
    +4691        'x = 1 AND (y = 1 AND z = 1)'
    +4692
    +4693    Args:
    +4694        *expressions (str | Expression): the SQL code strings to parse.
    +4695            If an Expression instance is passed, this is used as-is.
    +4696        dialect (str): the dialect used to parse the input expression.
    +4697        copy (bool): whether or not to copy `expressions` (only applies to Expressions).
    +4698        **opts: other options to use to parse the input expressions.
    +4699
    +4700    Returns:
    +4701        And: the new condition
    +4702    """
    +4703    return _combine(expressions, And, dialect, copy=copy, **opts)
     
    @@ -44759,6 +47093,7 @@ that the input expression is a SQL string).
  • *expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
  • dialect (str): the dialect used to parse the input expression.
  • +
  • copy (bool): whether or not to copy expressions (only applies to Expressions).
  • **opts: other options to use to parse the input expressions.
  • @@ -44776,30 +47111,31 @@ If an Expression instance is passed, this is used as-is.
    def - or_(*expressions, dialect=None, **opts) -> sqlglot.expressions.Or: + or_(*expressions, dialect=None, copy=True, **opts) -> sqlglot.expressions.Or:
    -
    4552def or_(*expressions, dialect=None, **opts) -> Or:
    -4553    """
    -4554    Combine multiple conditions with an OR logical operator.
    -4555
    -4556    Example:
    -4557        >>> or_("x=1", or_("y=1", "z=1")).sql()
    -4558        'x = 1 OR (y = 1 OR z = 1)'
    -4559
    -4560    Args:
    -4561        *expressions (str | Expression): the SQL code strings to parse.
    -4562            If an Expression instance is passed, this is used as-is.
    -4563        dialect (str): the dialect used to parse the input expression.
    -4564        **opts: other options to use to parse the input expressions.
    -4565
    -4566    Returns:
    -4567        Or: the new condition
    -4568    """
    -4569    return _combine(expressions, Or, dialect, **opts)
    +            
    4706def or_(*expressions, dialect=None, copy=True, **opts) -> Or:
    +4707    """
    +4708    Combine multiple conditions with an OR logical operator.
    +4709
    +4710    Example:
    +4711        >>> or_("x=1", or_("y=1", "z=1")).sql()
    +4712        'x = 1 OR (y = 1 OR z = 1)'
    +4713
    +4714    Args:
    +4715        *expressions (str | Expression): the SQL code strings to parse.
    +4716            If an Expression instance is passed, this is used as-is.
    +4717        dialect (str): the dialect used to parse the input expression.
    +4718        copy (bool): whether or not to copy `expressions` (only applies to Expressions).
    +4719        **opts: other options to use to parse the input expressions.
    +4720
    +4721    Returns:
    +4722        Or: the new condition
    +4723    """
    +4724    return _combine(expressions, Or, dialect, copy=copy, **opts)
     
    @@ -44821,6 +47157,7 @@ If an Expression instance is passed, this is used as-is.
  • *expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, this is used as-is.
  • dialect (str): the dialect used to parse the input expression.
  • +
  • copy (bool): whether or not to copy expressions (only applies to Expressions).
  • **opts: other options to use to parse the input expressions.
  • @@ -44838,35 +47175,36 @@ If an Expression instance is passed, this is used as-is.
    def - not_(expression, dialect=None, **opts) -> sqlglot.expressions.Not: + not_(expression, dialect=None, copy=True, **opts) -> sqlglot.expressions.Not:
    -
    4572def not_(expression, dialect=None, **opts) -> Not:
    -4573    """
    -4574    Wrap a condition with a NOT operator.
    -4575
    -4576    Example:
    -4577        >>> not_("this_suit='black'").sql()
    -4578        "NOT this_suit = 'black'"
    -4579
    -4580    Args:
    -4581        expression (str | Expression): the SQL code strings to parse.
    -4582            If an Expression instance is passed, this is used as-is.
    -4583        dialect (str): the dialect used to parse the input expression.
    -4584        **opts: other options to use to parse the input expressions.
    -4585
    -4586    Returns:
    -4587        Not: the new condition
    -4588    """
    -4589    this = condition(
    -4590        expression,
    -4591        dialect=dialect,
    -4592        **opts,
    -4593    )
    -4594    return Not(this=_wrap_operator(this))
    +            
    4727def not_(expression, dialect=None, copy=True, **opts) -> Not:
    +4728    """
    +4729    Wrap a condition with a NOT operator.
    +4730
    +4731    Example:
    +4732        >>> not_("this_suit='black'").sql()
    +4733        "NOT this_suit = 'black'"
    +4734
    +4735    Args:
    +4736        expression (str | Expression): the SQL code strings to parse.
    +4737            If an Expression instance is passed, this is used as-is.
    +4738        dialect (str): the dialect used to parse the input expression.
    +4739        **opts: other options to use to parse the input expressions.
    +4740
    +4741    Returns:
    +4742        Not: the new condition
    +4743    """
    +4744    this = condition(
    +4745        expression,
    +4746        dialect=dialect,
    +4747        copy=copy,
    +4748        **opts,
    +4749    )
    +4750    return Not(this=_wrap(this, Connector))
     
    @@ -44905,14 +47243,14 @@ If an Expression instance is passed, this is used as-is.
    def - paren(expression) -> sqlglot.expressions.Paren: + paren(expression, copy=True) -> sqlglot.expressions.Paren:
    -
    4597def paren(expression) -> Paren:
    -4598    return Paren(this=expression)
    +            
    4753def paren(expression, copy=True) -> Paren:
    +4754    return Paren(this=_maybe_copy(expression, copy))
     
    @@ -44930,30 +47268,30 @@ If an Expression instance is passed, this is used as-is.
    -
    4614def to_identifier(name, quoted=None):
    -4615    """Builds an identifier.
    -4616
    -4617    Args:
    -4618        name: The name to turn into an identifier.
    -4619        quoted: Whether or not force quote the identifier.
    -4620
    -4621    Returns:
    -4622        The identifier ast node.
    -4623    """
    -4624
    -4625    if name is None:
    -4626        return None
    -4627
    -4628    if isinstance(name, Identifier):
    -4629        identifier = name
    -4630    elif isinstance(name, str):
    -4631        identifier = Identifier(
    -4632            this=name,
    -4633            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    -4634        )
    -4635    else:
    -4636        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    -4637    return identifier
    +            
    4770def to_identifier(name, quoted=None):
    +4771    """Builds an identifier.
    +4772
    +4773    Args:
    +4774        name: The name to turn into an identifier.
    +4775        quoted: Whether or not force quote the identifier.
    +4776
    +4777    Returns:
    +4778        The identifier ast node.
    +4779    """
    +4780
    +4781    if name is None:
    +4782        return None
    +4783
    +4784    if isinstance(name, Identifier):
    +4785        identifier = name
    +4786    elif isinstance(name, str):
    +4787        identifier = Identifier(
    +4788            this=name,
    +4789            quoted=not SAFE_IDENTIFIER_RE.match(name) if quoted is None else quoted,
    +4790        )
    +4791    else:
    +4792        raise ValueError(f"Name needs to be a string or an Identifier, got: {name.__class__}")
    +4793    return identifier
     
    @@ -44986,23 +47324,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4643def to_interval(interval: str | Literal) -> Interval:
    -4644    """Builds an interval expression from a string like '1 day' or '5 months'."""
    -4645    if isinstance(interval, Literal):
    -4646        if not interval.is_string:
    -4647            raise ValueError("Invalid interval string.")
    -4648
    -4649        interval = interval.this
    -4650
    -4651    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    -4652
    -4653    if not interval_parts:
    -4654        raise ValueError("Invalid interval string.")
    -4655
    -4656    return Interval(
    -4657        this=Literal.string(interval_parts.group(1)),
    -4658        unit=Var(this=interval_parts.group(2)),
    -4659    )
    +            
    4799def to_interval(interval: str | Literal) -> Interval:
    +4800    """Builds an interval expression from a string like '1 day' or '5 months'."""
    +4801    if isinstance(interval, Literal):
    +4802        if not interval.is_string:
    +4803            raise ValueError("Invalid interval string.")
    +4804
    +4805        interval = interval.this
    +4806
    +4807    interval_parts = INTERVAL_STRING_RE.match(interval)  # type: ignore
    +4808
    +4809    if not interval_parts:
    +4810        raise ValueError("Invalid interval string.")
    +4811
    +4812    return Interval(
    +4813        this=Literal.string(interval_parts.group(1)),
    +4814        unit=Var(this=interval_parts.group(2)),
    +4815    )
     
    @@ -45022,24 +47360,24 @@ If an Expression instance is passed, this is used as-is.
    -
    4672def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    -4673    """
    -4674    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    -4675    If a table is passed in then that table is returned.
    -4676
    -4677    Args:
    -4678        sql_path: a `[catalog].[schema].[table]` string.
    -4679
    -4680    Returns:
    -4681        A table expression.
    -4682    """
    -4683    if sql_path is None or isinstance(sql_path, Table):
    -4684        return sql_path
    -4685    if not isinstance(sql_path, str):
    -4686        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    -4687
    -4688    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    -4689    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
    +            
    4828def to_table(sql_path: t.Optional[str | Table], **kwargs) -> t.Optional[Table]:
    +4829    """
    +4830    Create a table expression from a `[catalog].[schema].[table]` sql path. Catalog and schema are optional.
    +4831    If a table is passed in then that table is returned.
    +4832
    +4833    Args:
    +4834        sql_path: a `[catalog].[schema].[table]` string.
    +4835
    +4836    Returns:
    +4837        A table expression.
    +4838    """
    +4839    if sql_path is None or isinstance(sql_path, Table):
    +4840        return sql_path
    +4841    if not isinstance(sql_path, str):
    +4842        raise ValueError(f"Invalid type provided for a table: {type(sql_path)}")
    +4843
    +4844    catalog, db, table_name = (to_identifier(x) for x in split_num_words(sql_path, ".", 3))
    +4845    return Table(this=table_name, db=db, catalog=catalog, **kwargs)
     
    @@ -45072,22 +47410,22 @@ If a table is passed in then that table is returned.

    -
    4692def to_column(sql_path: str | Column, **kwargs) -> Column:
    -4693    """
    -4694    Create a column from a `[table].[column]` sql path. Schema is optional.
    -4695
    -4696    If a column is passed in then that column is returned.
    -4697
    -4698    Args:
    -4699        sql_path: `[table].[column]` string
    -4700    Returns:
    -4701        Table: A column expression
    -4702    """
    -4703    if sql_path is None or isinstance(sql_path, Column):
    -4704        return sql_path
    -4705    if not isinstance(sql_path, str):
    -4706        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    -4707    return column(*reversed(sql_path.split(".")), **kwargs)  # type: ignore
    +            
    4848def to_column(sql_path: str | Column, **kwargs) -> Column:
    +4849    """
    +4850    Create a column from a `[table].[column]` sql path. Schema is optional.
    +4851
    +4852    If a column is passed in then that column is returned.
    +4853
    +4854    Args:
    +4855        sql_path: `[table].[column]` string
    +4856    Returns:
    +4857        Table: A column expression
    +4858    """
    +4859    if sql_path is None or isinstance(sql_path, Column):
    +4860        return sql_path
    +4861    if not isinstance(sql_path, str):
    +4862        raise ValueError(f"Invalid type provided for column: {type(sql_path)}")
    +4863    return column(*reversed(sql_path.split(".")), **kwargs)  # type: ignore
     
    @@ -45121,62 +47459,62 @@ If a table is passed in then that table is returned.

    -
    4710def alias_(
    -4711    expression: ExpOrStr,
    -4712    alias: str | Identifier,
    -4713    table: bool | t.Sequence[str | Identifier] = False,
    -4714    quoted: t.Optional[bool] = None,
    -4715    dialect: DialectType = None,
    -4716    **opts,
    -4717):
    -4718    """Create an Alias expression.
    -4719
    -4720    Example:
    -4721        >>> alias_('foo', 'bar').sql()
    -4722        'foo AS bar'
    -4723
    -4724        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    -4725        '(SELECT 1, 2) AS bar(a, b)'
    -4726
    -4727    Args:
    -4728        expression: the SQL code strings to parse.
    -4729            If an Expression instance is passed, this is used as-is.
    -4730        alias: the alias name to use. If the name has
    -4731            special characters it is quoted.
    -4732        table: Whether or not to create a table alias, can also be a list of columns.
    -4733        quoted: whether or not to quote the alias
    -4734        dialect: the dialect used to parse the input expression.
    -4735        **opts: other options to use to parse the input expressions.
    -4736
    -4737    Returns:
    -4738        Alias: the aliased expression
    -4739    """
    -4740    exp = maybe_parse(expression, dialect=dialect, **opts)
    -4741    alias = to_identifier(alias, quoted=quoted)
    -4742
    -4743    if table:
    -4744        table_alias = TableAlias(this=alias)
    -4745
    -4746        exp = exp.copy() if isinstance(expression, Expression) else exp
    -4747        exp.set("alias", table_alias)
    -4748
    -4749        if not isinstance(table, bool):
    -4750            for column in table:
    -4751                table_alias.append("columns", to_identifier(column, quoted=quoted))
    -4752
    -4753        return exp
    -4754
    -4755    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    -4756    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    -4757    # for the complete Window expression.
    -4758    #
    -4759    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    -4760
    -4761    if "alias" in exp.arg_types and not isinstance(exp, Window):
    -4762        exp = exp.copy()
    -4763        exp.set("alias", alias)
    -4764        return exp
    -4765    return Alias(this=exp, alias=alias)
    +            
    4866def alias_(
    +4867    expression: ExpOrStr,
    +4868    alias: str | Identifier,
    +4869    table: bool | t.Sequence[str | Identifier] = False,
    +4870    quoted: t.Optional[bool] = None,
    +4871    dialect: DialectType = None,
    +4872    **opts,
    +4873):
    +4874    """Create an Alias expression.
    +4875
    +4876    Example:
    +4877        >>> alias_('foo', 'bar').sql()
    +4878        'foo AS bar'
    +4879
    +4880        >>> alias_('(select 1, 2)', 'bar', table=['a', 'b']).sql()
    +4881        '(SELECT 1, 2) AS bar(a, b)'
    +4882
    +4883    Args:
    +4884        expression: the SQL code strings to parse.
    +4885            If an Expression instance is passed, this is used as-is.
    +4886        alias: the alias name to use. If the name has
    +4887            special characters it is quoted.
    +4888        table: Whether or not to create a table alias, can also be a list of columns.
    +4889        quoted: whether or not to quote the alias
    +4890        dialect: the dialect used to parse the input expression.
    +4891        **opts: other options to use to parse the input expressions.
    +4892
    +4893    Returns:
    +4894        Alias: the aliased expression
    +4895    """
    +4896    exp = maybe_parse(expression, dialect=dialect, **opts)
    +4897    alias = to_identifier(alias, quoted=quoted)
    +4898
    +4899    if table:
    +4900        table_alias = TableAlias(this=alias)
    +4901
    +4902        exp = exp.copy() if isinstance(expression, Expression) else exp
    +4903        exp.set("alias", table_alias)
    +4904
    +4905        if not isinstance(table, bool):
    +4906            for column in table:
    +4907                table_alias.append("columns", to_identifier(column, quoted=quoted))
    +4908
    +4909        return exp
    +4910
    +4911    # We don't set the "alias" arg for Window expressions, because that would add an IDENTIFIER node in
    +4912    # the AST, representing a "named_window" [1] construct (eg. bigquery). What we want is an ALIAS node
    +4913    # for the complete Window expression.
    +4914    #
    +4915    # [1]: https://cloud.google.com/bigquery/docs/reference/standard-sql/window-function-calls
    +4916
    +4917    if "alias" in exp.arg_types and not isinstance(exp, Window):
    +4918        exp = exp.copy()
    +4919        exp.set("alias", alias)
    +4920        return exp
    +4921    return Alias(this=exp, alias=alias)
     
    @@ -45231,27 +47569,27 @@ special characters it is quoted.
    -
    4768def subquery(expression, alias=None, dialect=None, **opts):
    -4769    """
    -4770    Build a subquery expression.
    -4771
    -4772    Example:
    -4773        >>> subquery('select x from tbl', 'bar').select('x').sql()
    -4774        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    -4775
    -4776    Args:
    -4777        expression (str | Expression): the SQL code strings to parse.
    -4778            If an Expression instance is passed, this is used as-is.
    -4779        alias (str | Expression): the alias name to use.
    -4780        dialect (str): the dialect used to parse the input expression.
    -4781        **opts: other options to use to parse the input expressions.
    -4782
    -4783    Returns:
    -4784        Select: a new select with the subquery expression included
    -4785    """
    -4786
    -4787    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    -4788    return Select().from_(expression, dialect=dialect, **opts)
    +            
    4924def subquery(expression, alias=None, dialect=None, **opts):
    +4925    """
    +4926    Build a subquery expression.
    +4927
    +4928    Example:
    +4929        >>> subquery('select x from tbl', 'bar').select('x').sql()
    +4930        'SELECT x FROM (SELECT x FROM tbl) AS bar'
    +4931
    +4932    Args:
    +4933        expression (str | Expression): the SQL code strings to parse.
    +4934            If an Expression instance is passed, this is used as-is.
    +4935        alias (str | Expression): the alias name to use.
    +4936        dialect (str): the dialect used to parse the input expression.
    +4937        **opts: other options to use to parse the input expressions.
    +4938
    +4939    Returns:
    +4940        Select: a new select with the subquery expression included
    +4941    """
    +4942
    +4943    expression = maybe_parse(expression, dialect=dialect, **opts).subquery(alias)
    +4944    return Select().from_(expression, dialect=dialect, **opts)
     
    @@ -45297,31 +47635,31 @@ If an Expression instance is passed, this is used as-is.
    -
    4791def column(
    -4792    col: str | Identifier,
    -4793    table: t.Optional[str | Identifier] = None,
    -4794    db: t.Optional[str | Identifier] = None,
    -4795    catalog: t.Optional[str | Identifier] = None,
    -4796    quoted: t.Optional[bool] = None,
    -4797) -> Column:
    -4798    """
    -4799    Build a Column.
    -4800
    -4801    Args:
    -4802        col: column name
    -4803        table: table name
    -4804        db: db name
    -4805        catalog: catalog name
    -4806        quoted: whether or not to force quote each part
    -4807    Returns:
    -4808        Column: column instance
    -4809    """
    -4810    return Column(
    -4811        this=to_identifier(col, quoted=quoted),
    -4812        table=to_identifier(table, quoted=quoted),
    -4813        db=to_identifier(db, quoted=quoted),
    -4814        catalog=to_identifier(catalog, quoted=quoted),
    -4815    )
    +            
    4947def column(
    +4948    col: str | Identifier,
    +4949    table: t.Optional[str | Identifier] = None,
    +4950    db: t.Optional[str | Identifier] = None,
    +4951    catalog: t.Optional[str | Identifier] = None,
    +4952    quoted: t.Optional[bool] = None,
    +4953) -> Column:
    +4954    """
    +4955    Build a Column.
    +4956
    +4957    Args:
    +4958        col: column name
    +4959        table: table name
    +4960        db: db name
    +4961        catalog: catalog name
    +4962        quoted: whether or not to force quote each part
    +4963    Returns:
    +4964        Column: column instance
    +4965    """
    +4966    return Column(
    +4967        this=to_identifier(col, quoted=quoted),
    +4968        table=to_identifier(table, quoted=quoted),
    +4969        db=to_identifier(db, quoted=quoted),
    +4970        catalog=to_identifier(catalog, quoted=quoted),
    +4971    )
     
    @@ -45357,22 +47695,22 @@ If an Expression instance is passed, this is used as-is.
    -
    4818def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast:
    -4819    """Cast an expression to a data type.
    -4820
    -4821    Example:
    -4822        >>> cast('x + 1', 'int').sql()
    -4823        'CAST(x + 1 AS INT)'
    -4824
    -4825    Args:
    -4826        expression: The expression to cast.
    -4827        to: The datatype to cast to.
    -4828
    -4829    Returns:
    -4830        A cast node.
    -4831    """
    -4832    expression = maybe_parse(expression, **opts)
    -4833    return Cast(this=expression, to=DataType.build(to, **opts))
    +            
    4974def cast(expression: ExpOrStr, to: str | DataType | DataType.Type, **opts) -> Cast:
    +4975    """Cast an expression to a data type.
    +4976
    +4977    Example:
    +4978        >>> cast('x + 1', 'int').sql()
    +4979        'CAST(x + 1 AS INT)'
    +4980
    +4981    Args:
    +4982        expression: The expression to cast.
    +4983        to: The datatype to cast to.
    +4984
    +4985    Returns:
    +4986        A cast node.
    +4987    """
    +4988    expression = maybe_parse(expression, **opts)
    +4989    return Cast(this=expression, to=DataType.build(to, **opts))
     
    @@ -45415,23 +47753,23 @@ If an Expression instance is passed, this is used as-is.
    -
    4836def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    -4837    """Build a Table.
    -4838
    -4839    Args:
    -4840        table (str | Expression): column name
    -4841        db (str | Expression): db name
    -4842        catalog (str | Expression): catalog name
    -4843
    -4844    Returns:
    -4845        Table: table instance
    -4846    """
    -4847    return Table(
    -4848        this=to_identifier(table, quoted=quoted),
    -4849        db=to_identifier(db, quoted=quoted),
    -4850        catalog=to_identifier(catalog, quoted=quoted),
    -4851        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    -4852    )
    +            
    4992def table_(table, db=None, catalog=None, quoted=None, alias=None) -> Table:
    +4993    """Build a Table.
    +4994
    +4995    Args:
    +4996        table (str | Expression): column name
    +4997        db (str | Expression): db name
    +4998        catalog (str | Expression): catalog name
    +4999
    +5000    Returns:
    +5001        Table: table instance
    +5002    """
    +5003    return Table(
    +5004        this=to_identifier(table, quoted=quoted),
    +5005        db=to_identifier(db, quoted=quoted),
    +5006        catalog=to_identifier(catalog, quoted=quoted),
    +5007        alias=TableAlias(this=to_identifier(alias)) if alias else None,
    +5008    )
     
    @@ -45465,46 +47803,37 @@ If an Expression instance is passed, this is used as-is.
    -
    4855def values(
    -4856    values: t.Iterable[t.Tuple[t.Any, ...]],
    -4857    alias: t.Optional[str] = None,
    -4858    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    -4859) -> Values:
    -4860    """Build VALUES statement.
    -4861
    -4862    Example:
    -4863        >>> values([(1, '2')]).sql()
    -4864        "VALUES (1, '2')"
    -4865
    -4866    Args:
    -4867        values: values statements that will be converted to SQL
    -4868        alias: optional alias
    -4869        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    -4870         If either are provided then an alias is also required.
    -4871         If a dictionary is provided then the first column of the values will be casted to the expected type
    -4872         in order to help with type inference.
    -4873
    -4874    Returns:
    -4875        Values: the Values expression object
    -4876    """
    -4877    if columns and not alias:
    -4878        raise ValueError("Alias is required when providing columns")
    -4879    table_alias = (
    -4880        TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    -4881        if columns
    -4882        else TableAlias(this=to_identifier(alias) if alias else None)
    -4883    )
    -4884    expressions = [convert(tup) for tup in values]
    -4885    if columns and isinstance(columns, dict):
    -4886        types = list(columns.values())
    -4887        expressions[0].set(
    -4888            "expressions",
    -4889            [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)],
    -4890        )
    -4891    return Values(
    -4892        expressions=expressions,
    -4893        alias=table_alias,
    -4894    )
    +            
    5011def values(
    +5012    values: t.Iterable[t.Tuple[t.Any, ...]],
    +5013    alias: t.Optional[str] = None,
    +5014    columns: t.Optional[t.Iterable[str] | t.Dict[str, DataType]] = None,
    +5015) -> Values:
    +5016    """Build VALUES statement.
    +5017
    +5018    Example:
    +5019        >>> values([(1, '2')]).sql()
    +5020        "VALUES (1, '2')"
    +5021
    +5022    Args:
    +5023        values: values statements that will be converted to SQL
    +5024        alias: optional alias
    +5025        columns: Optional list of ordered column names or ordered dictionary of column names to types.
    +5026         If either are provided then an alias is also required.
    +5027
    +5028    Returns:
    +5029        Values: the Values expression object
    +5030    """
    +5031    if columns and not alias:
    +5032        raise ValueError("Alias is required when providing columns")
    +5033
    +5034    return Values(
    +5035        expressions=[convert(tup) for tup in values],
    +5036        alias=(
    +5037            TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns])
    +5038            if columns
    +5039            else (TableAlias(this=to_identifier(alias)) if alias else None)
    +5040        ),
    +5041    )
     
    @@ -45526,9 +47855,7 @@ If an Expression instance is passed, this is used as-is.
  • values: values statements that will be converted to SQL
  • alias: optional alias
  • columns: Optional list of ordered column names or ordered dictionary of column names to types. -If either are provided then an alias is also required. -If a dictionary is provided then the first column of the values will be casted to the expected type -in order to help with type inference.
  • +If either are provided then an alias is also required.
    Returns:
    @@ -45551,28 +47878,28 @@ in order to help with type inference.
    -
    4897def var(name: t.Optional[ExpOrStr]) -> Var:
    -4898    """Build a SQL variable.
    -4899
    -4900    Example:
    -4901        >>> repr(var('x'))
    -4902        '(VAR this: x)'
    -4903
    -4904        >>> repr(var(column('x', table='y')))
    -4905        '(VAR this: x)'
    -4906
    -4907    Args:
    -4908        name: The name of the var or an expression who's name will become the var.
    -4909
    -4910    Returns:
    -4911        The new variable node.
    -4912    """
    -4913    if not name:
    -4914        raise ValueError("Cannot convert empty name into var.")
    -4915
    -4916    if isinstance(name, Expression):
    -4917        name = name.name
    -4918    return Var(this=name)
    +            
    5044def var(name: t.Optional[ExpOrStr]) -> Var:
    +5045    """Build a SQL variable.
    +5046
    +5047    Example:
    +5048        >>> repr(var('x'))
    +5049        '(VAR this: x)'
    +5050
    +5051        >>> repr(var(column('x', table='y')))
    +5052        '(VAR this: x)'
    +5053
    +5054    Args:
    +5055        name: The name of the var or an expression who's name will become the var.
    +5056
    +5057    Returns:
    +5058        The new variable node.
    +5059    """
    +5060    if not name:
    +5061        raise ValueError("Cannot convert empty name into var.")
    +5062
    +5063    if isinstance(name, Expression):
    +5064        name = name.name
    +5065    return Var(this=name)
     
    @@ -45620,24 +47947,24 @@ in order to help with type inference.
    -
    4921def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    -4922    """Build ALTER TABLE... RENAME... expression
    -4923
    -4924    Args:
    -4925        old_name: The old name of the table
    -4926        new_name: The new name of the table
    -4927
    -4928    Returns:
    -4929        Alter table expression
    -4930    """
    -4931    old_table = to_table(old_name)
    -4932    new_table = to_table(new_name)
    -4933    return AlterTable(
    -4934        this=old_table,
    -4935        actions=[
    -4936            RenameTable(this=new_table),
    -4937        ],
    -4938    )
    +            
    5068def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable:
    +5069    """Build ALTER TABLE... RENAME... expression
    +5070
    +5071    Args:
    +5072        old_name: The old name of the table
    +5073        new_name: The new name of the table
    +5074
    +5075    Returns:
    +5076        Alter table expression
    +5077    """
    +5078    old_table = to_table(old_name)
    +5079    new_table = to_table(new_name)
    +5080    return AlterTable(
    +5081        this=old_table,
    +5082        actions=[
    +5083            RenameTable(this=new_table),
    +5084        ],
    +5085    )
     
    @@ -45664,53 +47991,52 @@ in order to help with type inference.
    def - convert(value) -> sqlglot.expressions.Expression: + convert(value: Any, copy: bool = False) -> sqlglot.expressions.Expression:
    -
    4941def convert(value) -> Expression:
    -4942    """Convert a python value into an expression object.
    -4943
    -4944    Raises an error if a conversion is not possible.
    -4945
    -4946    Args:
    -4947        value (Any): a python object
    -4948
    -4949    Returns:
    -4950        Expression: the equivalent expression object
    -4951    """
    -4952    if isinstance(value, Expression):
    -4953        return value
    -4954    if value is None:
    -4955        return NULL
    -4956    if isinstance(value, bool):
    -4957        return Boolean(this=value)
    -4958    if isinstance(value, str):
    -4959        return Literal.string(value)
    -4960    if isinstance(value, float) and math.isnan(value):
    -4961        return NULL
    -4962    if isinstance(value, numbers.Number):
    -4963        return Literal.number(value)
    -4964    if isinstance(value, tuple):
    -4965        return Tuple(expressions=[convert(v) for v in value])
    -4966    if isinstance(value, list):
    -4967        return Array(expressions=[convert(v) for v in value])
    -4968    if isinstance(value, dict):
    -4969        return Map(
    -4970            keys=[convert(k) for k in value],
    -4971            values=[convert(v) for v in value.values()],
    -4972        )
    -4973    if isinstance(value, datetime.datetime):
    -4974        datetime_literal = Literal.string(
    -4975            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    -4976        )
    -4977        return TimeStrToTime(this=datetime_literal)
    -4978    if isinstance(value, datetime.date):
    -4979        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    -4980        return DateStrToDate(this=date_literal)
    -4981    raise ValueError(f"Cannot convert {value}")
    +            
    5088def convert(value: t.Any, copy: bool = False) -> Expression:
    +5089    """Convert a python value into an expression object.
    +5090
    +5091    Raises an error if a conversion is not possible.
    +5092
    +5093    Args:
    +5094        value: A python object.
    +5095        copy: Whether or not to copy `value` (only applies to Expressions and collections).
    +5096
    +5097    Returns:
    +5098        Expression: the equivalent expression object.
    +5099    """
    +5100    if isinstance(value, Expression):
    +5101        return _maybe_copy(value, copy)
    +5102    if isinstance(value, str):
    +5103        return Literal.string(value)
    +5104    if isinstance(value, bool):
    +5105        return Boolean(this=value)
    +5106    if value is None or (isinstance(value, float) and math.isnan(value)):
    +5107        return NULL
    +5108    if isinstance(value, numbers.Number):
    +5109        return Literal.number(value)
    +5110    if isinstance(value, datetime.datetime):
    +5111        datetime_literal = Literal.string(
    +5112            (value if value.tzinfo else value.replace(tzinfo=datetime.timezone.utc)).isoformat()
    +5113        )
    +5114        return TimeStrToTime(this=datetime_literal)
    +5115    if isinstance(value, datetime.date):
    +5116        date_literal = Literal.string(value.strftime("%Y-%m-%d"))
    +5117        return DateStrToDate(this=date_literal)
    +5118    if isinstance(value, tuple):
    +5119        return Tuple(expressions=[convert(v, copy=copy) for v in value])
    +5120    if isinstance(value, list):
    +5121        return Array(expressions=[convert(v, copy=copy) for v in value])
    +5122    if isinstance(value, dict):
    +5123        return Map(
    +5124            keys=[convert(k, copy=copy) for k in value],
    +5125            values=[convert(v, copy=copy) for v in value.values()],
    +5126        )
    +5127    raise ValueError(f"Cannot convert {value}")
     
    @@ -45721,13 +48047,14 @@ in order to help with type inference.
    Arguments:
      -
    • value (Any): a python object
    • +
    • value: A python object.
    • +
    • copy: Whether or not to copy value (only applies to Expressions and collections).
    Returns:
    -

    Expression: the equivalent expression object

    +

    Expression: the equivalent expression object.

    @@ -45744,26 +48071,26 @@ in order to help with type inference.
    -
    4984def replace_children(expression, fun, *args, **kwargs):
    -4985    """
    -4986    Replace children of an expression with the result of a lambda fun(child) -> exp.
    -4987    """
    -4988    for k, v in expression.args.items():
    -4989        is_list_arg = type(v) is list
    -4990
    -4991        child_nodes = v if is_list_arg else [v]
    -4992        new_child_nodes = []
    -4993
    -4994        for cn in child_nodes:
    -4995            if isinstance(cn, Expression):
    -4996                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    -4997                    new_child_nodes.append(child_node)
    -4998                    child_node.parent = expression
    -4999                    child_node.arg_key = k
    -5000            else:
    -5001                new_child_nodes.append(cn)
    -5002
    -5003        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
    +            
    5130def replace_children(expression, fun, *args, **kwargs):
    +5131    """
    +5132    Replace children of an expression with the result of a lambda fun(child) -> exp.
    +5133    """
    +5134    for k, v in expression.args.items():
    +5135        is_list_arg = type(v) is list
    +5136
    +5137        child_nodes = v if is_list_arg else [v]
    +5138        new_child_nodes = []
    +5139
    +5140        for cn in child_nodes:
    +5141            if isinstance(cn, Expression):
    +5142                for child_node in ensure_collection(fun(cn, *args, **kwargs)):
    +5143                    new_child_nodes.append(child_node)
    +5144                    child_node.parent = expression
    +5145                    child_node.arg_key = k
    +5146            else:
    +5147                new_child_nodes.append(cn)
    +5148
    +5149        expression.args[k] = new_child_nodes if is_list_arg else seq_get(new_child_nodes, 0)
     
    @@ -45783,22 +48110,22 @@ in order to help with type inference.
    -
    5006def column_table_names(expression):
    -5007    """
    -5008    Return all table names referenced through columns in an expression.
    -5009
    -5010    Example:
    -5011        >>> import sqlglot
    -5012        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    -5013        ['c', 'a']
    -5014
    -5015    Args:
    -5016        expression (sqlglot.Expression): expression to find table names
    -5017
    -5018    Returns:
    -5019        list: A list of unique names
    -5020    """
    -5021    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
    +            
    5152def column_table_names(expression):
    +5153    """
    +5154    Return all table names referenced through columns in an expression.
    +5155
    +5156    Example:
    +5157        >>> import sqlglot
    +5158        >>> column_table_names(sqlglot.parse_one("a.b AND c.d AND c.e"))
    +5159        ['c', 'a']
    +5160
    +5161    Args:
    +5162        expression (sqlglot.Expression): expression to find table names
    +5163
    +5164    Returns:
    +5165        list: A list of unique names
    +5166    """
    +5167    return list(dict.fromkeys(column.table for column in expression.find_all(Column)))
     
    @@ -45841,35 +48168,35 @@ in order to help with type inference.
    -
    5024def table_name(table) -> str:
    -5025    """Get the full name of a table as a string.
    -5026
    -5027    Args:
    -5028        table (exp.Table | str): table expression node or string.
    -5029
    -5030    Examples:
    -5031        >>> from sqlglot import exp, parse_one
    -5032        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    -5033        'a.b.c'
    -5034
    -5035    Returns:
    -5036        The table name.
    -5037    """
    -5038
    -5039    table = maybe_parse(table, into=Table)
    -5040
    -5041    if not table:
    -5042        raise ValueError(f"Cannot parse {table}")
    -5043
    -5044    return ".".join(
    -5045        part
    -5046        for part in (
    -5047            table.text("catalog"),
    -5048            table.text("db"),
    -5049            table.name,
    -5050        )
    -5051        if part
    -5052    )
    +            
    5170def table_name(table) -> str:
    +5171    """Get the full name of a table as a string.
    +5172
    +5173    Args:
    +5174        table (exp.Table | str): table expression node or string.
    +5175
    +5176    Examples:
    +5177        >>> from sqlglot import exp, parse_one
    +5178        >>> table_name(parse_one("select * from a.b.c").find(exp.Table))
    +5179        'a.b.c'
    +5180
    +5181    Returns:
    +5182        The table name.
    +5183    """
    +5184
    +5185    table = maybe_parse(table, into=Table)
    +5186
    +5187    if not table:
    +5188        raise ValueError(f"Cannot parse {table}")
    +5189
    +5190    return ".".join(
    +5191        part
    +5192        for part in (
    +5193            table.text("catalog"),
    +5194            table.text("db"),
    +5195            table.name,
    +5196        )
    +5197        if part
    +5198    )
     
    @@ -45912,33 +48239,33 @@ in order to help with type inference.
    -
    5055def replace_tables(expression, mapping):
    -5056    """Replace all tables in expression according to the mapping.
    -5057
    -5058    Args:
    -5059        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -5060        mapping (Dict[str, str]): mapping of table names.
    -5061
    -5062    Examples:
    -5063        >>> from sqlglot import exp, parse_one
    -5064        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    -5065        'SELECT * FROM c'
    -5066
    -5067    Returns:
    -5068        The mapped expression.
    -5069    """
    -5070
    -5071    def _replace_tables(node):
    -5072        if isinstance(node, Table):
    -5073            new_name = mapping.get(table_name(node))
    -5074            if new_name:
    -5075                return to_table(
    -5076                    new_name,
    -5077                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    -5078                )
    -5079        return node
    -5080
    -5081    return expression.transform(_replace_tables)
    +            
    5201def replace_tables(expression, mapping):
    +5202    """Replace all tables in expression according to the mapping.
    +5203
    +5204    Args:
    +5205        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +5206        mapping (Dict[str, str]): mapping of table names.
    +5207
    +5208    Examples:
    +5209        >>> from sqlglot import exp, parse_one
    +5210        >>> replace_tables(parse_one("select * from a.b"), {"a.b": "c"}).sql()
    +5211        'SELECT * FROM c'
    +5212
    +5213    Returns:
    +5214        The mapped expression.
    +5215    """
    +5216
    +5217    def _replace_tables(node):
    +5218        if isinstance(node, Table):
    +5219            new_name = mapping.get(table_name(node))
    +5220            if new_name:
    +5221                return to_table(
    +5222                    new_name,
    +5223                    **{k: v for k, v in node.args.items() if k not in ("this", "db", "catalog")},
    +5224                )
    +5225        return node
    +5226
    +5227    return expression.transform(_replace_tables)
     
    @@ -45982,40 +48309,40 @@ in order to help with type inference.
    -
    5084def replace_placeholders(expression, *args, **kwargs):
    -5085    """Replace placeholders in an expression.
    -5086
    -5087    Args:
    -5088        expression (sqlglot.Expression): expression node to be transformed and replaced.
    -5089        args: positional names that will substitute unnamed placeholders in the given order.
    -5090        kwargs: keyword arguments that will substitute named placeholders.
    -5091
    -5092    Examples:
    -5093        >>> from sqlglot import exp, parse_one
    -5094        >>> replace_placeholders(
    -5095        ...     parse_one("select * from :tbl where ? = ?"),
    -5096        ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
    -5097        ... ).sql()
    -5098        "SELECT * FROM foo WHERE str_col = 'b'"
    -5099
    -5100    Returns:
    -5101        The mapped expression.
    -5102    """
    -5103
    -5104    def _replace_placeholders(node, args, **kwargs):
    -5105        if isinstance(node, Placeholder):
    -5106            if node.name:
    -5107                new_name = kwargs.get(node.name)
    -5108                if new_name:
    -5109                    return convert(new_name)
    -5110            else:
    -5111                try:
    -5112                    return convert(next(args))
    -5113                except StopIteration:
    -5114                    pass
    -5115        return node
    -5116
    -5117    return expression.transform(_replace_placeholders, iter(args), **kwargs)
    +            
    5230def replace_placeholders(expression, *args, **kwargs):
    +5231    """Replace placeholders in an expression.
    +5232
    +5233    Args:
    +5234        expression (sqlglot.Expression): expression node to be transformed and replaced.
    +5235        args: positional names that will substitute unnamed placeholders in the given order.
    +5236        kwargs: keyword arguments that will substitute named placeholders.
    +5237
    +5238    Examples:
    +5239        >>> from sqlglot import exp, parse_one
    +5240        >>> replace_placeholders(
    +5241        ...     parse_one("select * from :tbl where ? = ?"),
    +5242        ...     exp.to_identifier("str_col"), "b", tbl=exp.to_identifier("foo")
    +5243        ... ).sql()
    +5244        "SELECT * FROM foo WHERE str_col = 'b'"
    +5245
    +5246    Returns:
    +5247        The mapped expression.
    +5248    """
    +5249
    +5250    def _replace_placeholders(node, args, **kwargs):
    +5251        if isinstance(node, Placeholder):
    +5252            if node.name:
    +5253                new_name = kwargs.get(node.name)
    +5254                if new_name:
    +5255                    return convert(new_name)
    +5256            else:
    +5257                try:
    +5258                    return convert(next(args))
    +5259                except StopIteration:
    +5260                    pass
    +5261        return node
    +5262
    +5263    return expression.transform(_replace_placeholders, iter(args), **kwargs)
     
    @@ -46063,39 +48390,39 @@ in order to help with type inference.
    -
    5120def expand(
    -5121    expression: Expression, sources: t.Dict[str, Subqueryable], copy: bool = True
    -5122) -> Expression:
    -5123    """Transforms an expression by expanding all referenced sources into subqueries.
    -5124
    -5125    Examples:
    -5126        >>> from sqlglot import parse_one
    -5127        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    -5128        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    -5129
    -5130        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()
    -5131        'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'
    -5132
    -5133    Args:
    -5134        expression: The expression to expand.
    -5135        sources: A dictionary of name to Subqueryables.
    -5136        copy: Whether or not to copy the expression during transformation. Defaults to True.
    -5137
    -5138    Returns:
    -5139        The transformed expression.
    -5140    """
    -5141
    -5142    def _expand(node: Expression):
    -5143        if isinstance(node, Table):
    -5144            name = table_name(node)
    -5145            source = sources.get(name)
    -5146            if source:
    -5147                subquery = source.subquery(node.alias or name)
    -5148                subquery.comments = [f"source: {name}"]
    -5149                return subquery.transform(_expand, copy=False)
    -5150        return node
    -5151
    -5152    return expression.transform(_expand, copy=copy)
    +            
    5266def expand(
    +5267    expression: Expression, sources: t.Dict[str, Subqueryable], copy: bool = True
    +5268) -> Expression:
    +5269    """Transforms an expression by expanding all referenced sources into subqueries.
    +5270
    +5271    Examples:
    +5272        >>> from sqlglot import parse_one
    +5273        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y")}).sql()
    +5274        'SELECT * FROM (SELECT * FROM y) AS z /* source: x */'
    +5275
    +5276        >>> expand(parse_one("select * from x AS z"), {"x": parse_one("select * from y"), "y": parse_one("select * from z")}).sql()
    +5277        'SELECT * FROM (SELECT * FROM (SELECT * FROM z) AS y /* source: y */) AS z /* source: x */'
    +5278
    +5279    Args:
    +5280        expression: The expression to expand.
    +5281        sources: A dictionary of name to Subqueryables.
    +5282        copy: Whether or not to copy the expression during transformation. Defaults to True.
    +5283
    +5284    Returns:
    +5285        The transformed expression.
    +5286    """
    +5287
    +5288    def _expand(node: Expression):
    +5289        if isinstance(node, Table):
    +5290            name = table_name(node)
    +5291            source = sources.get(name)
    +5292            if source:
    +5293                subquery = source.subquery(node.alias or name)
    +5294                subquery.comments = [f"source: {name}"]
    +5295                return subquery.transform(_expand, copy=False)
    +5296        return node
    +5297
    +5298    return expression.transform(_expand, copy=copy)
     
    @@ -46146,51 +48473,51 @@ in order to help with type inference.
    -
    5155def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    -5156    """
    -5157    Returns a Func expression.
    -5158
    -5159    Examples:
    -5160        >>> func("abs", 5).sql()
    -5161        'ABS(5)'
    -5162
    -5163        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    -5164        'CAST(5 AS DOUBLE)'
    -5165
    -5166    Args:
    -5167        name: the name of the function to build.
    -5168        args: the args used to instantiate the function of interest.
    -5169        dialect: the source dialect.
    -5170        kwargs: the kwargs used to instantiate the function of interest.
    -5171
    -5172    Note:
    -5173        The arguments `args` and `kwargs` are mutually exclusive.
    -5174
    -5175    Returns:
    -5176        An instance of the function of interest, or an anonymous function, if `name` doesn't
    -5177        correspond to an existing `sqlglot.expressions.Func` class.
    -5178    """
    -5179    if args and kwargs:
    -5180        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    -5181
    -5182    from sqlglot.dialects.dialect import Dialect
    -5183
    -5184    converted = [convert(arg) for arg in args]
    -5185    kwargs = {key: convert(value) for key, value in kwargs.items()}
    -5186
    -5187    parser = Dialect.get_or_raise(dialect)().parser()
    -5188    from_args_list = parser.FUNCTIONS.get(name.upper())
    -5189
    -5190    if from_args_list:
    -5191        function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs)  # type: ignore
    -5192    else:
    -5193        kwargs = kwargs or {"expressions": converted}
    -5194        function = Anonymous(this=name, **kwargs)
    -5195
    -5196    for error_message in function.error_messages(converted):
    -5197        raise ValueError(error_message)
    -5198
    -5199    return function
    +            
    5301def func(name: str, *args, dialect: DialectType = None, **kwargs) -> Func:
    +5302    """
    +5303    Returns a Func expression.
    +5304
    +5305    Examples:
    +5306        >>> func("abs", 5).sql()
    +5307        'ABS(5)'
    +5308
    +5309        >>> func("cast", this=5, to=DataType.build("DOUBLE")).sql()
    +5310        'CAST(5 AS DOUBLE)'
    +5311
    +5312    Args:
    +5313        name: the name of the function to build.
    +5314        args: the args used to instantiate the function of interest.
    +5315        dialect: the source dialect.
    +5316        kwargs: the kwargs used to instantiate the function of interest.
    +5317
    +5318    Note:
    +5319        The arguments `args` and `kwargs` are mutually exclusive.
    +5320
    +5321    Returns:
    +5322        An instance of the function of interest, or an anonymous function, if `name` doesn't
    +5323        correspond to an existing `sqlglot.expressions.Func` class.
    +5324    """
    +5325    if args and kwargs:
    +5326        raise ValueError("Can't use both args and kwargs to instantiate a function.")
    +5327
    +5328    from sqlglot.dialects.dialect import Dialect
    +5329
    +5330    converted: t.List[Expression] = [maybe_parse(arg, dialect=dialect) for arg in args]
    +5331    kwargs = {key: maybe_parse(value, dialect=dialect) for key, value in kwargs.items()}
    +5332
    +5333    parser = Dialect.get_or_raise(dialect)().parser()
    +5334    from_args_list = parser.FUNCTIONS.get(name.upper())
    +5335
    +5336    if from_args_list:
    +5337        function = from_args_list(converted) if converted else from_args_list.__self__(**kwargs)  # type: ignore
    +5338    else:
    +5339        kwargs = kwargs or {"expressions": converted}
    +5340        function = Anonymous(this=name, **kwargs)
    +5341
    +5342    for error_message in function.error_messages(converted):
    +5343        raise ValueError(error_message)
    +5344
    +5345    return function
     
    @@ -46248,11 +48575,11 @@ in order to help with type inference.
    -
    5202def true():
    -5203    """
    -5204    Returns a true Boolean expression.
    -5205    """
    -5206    return Boolean(this=True)
    +            
    5348def true():
    +5349    """
    +5350    Returns a true Boolean expression.
    +5351    """
    +5352    return Boolean(this=True)
     
    @@ -46272,11 +48599,11 @@ in order to help with type inference.
    -
    5209def false():
    -5210    """
    -5211    Returns a false Boolean expression.
    -5212    """
    -5213    return Boolean(this=False)
    +            
    5355def false():
    +5356    """
    +5357    Returns a false Boolean expression.
    +5358    """
    +5359    return Boolean(this=False)
     
    @@ -46296,11 +48623,11 @@ in order to help with type inference.
    -
    5216def null():
    -5217    """
    -5218    Returns a Null expression.
    -5219    """
    -5220    return Null()
    +            
    5362def null():
    +5363    """
    +5364    Returns a Null expression.
    +5365    """
    +5366    return Null()
     
    diff --git a/docs/sqlglot/generator.html b/docs/sqlglot/generator.html index 8287b3f..652f77d 100644 --- a/docs/sqlglot/generator.html +++ b/docs/sqlglot/generator.html @@ -394,7 +394,7 @@ partition_by_sql
  • - window_spec_sql + windowspec_sql
  • withingroup_sql @@ -420,6 +420,9 @@
  • constraint_sql
  • +
  • + nextvaluefor_sql +
  • extract_sql
  • @@ -1257,7 +1260,7 @@
    524 525 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: 526 this = self.sql(expression, "this") - 527 kind_sql = self.sql(expression, "kind") + 527 kind_sql = self.sql(expression, "kind").strip() 528 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql 529 530 def autoincrementcolumnconstraint_sql(self, _) -> str: @@ -1848,1056 +1851,1069 @@ 1115 1116 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" 1117 -1118 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: -1119 if self.alias_post_tablesample and expression.this.alias: -1120 this = self.sql(expression.this, "this") -1121 alias = f" AS {self.sql(expression.this, 'alias')}" -1122 else: -1123 this = self.sql(expression, "this") -1124 alias = "" -1125 method = self.sql(expression, "method") -1126 method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else "" -1127 numerator = self.sql(expression, "bucket_numerator") -1128 denominator = self.sql(expression, "bucket_denominator") -1129 field = self.sql(expression, "bucket_field") -1130 field = f" ON {field}" if field else "" -1131 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1132 percent = self.sql(expression, "percent") -1133 percent = f"{percent} PERCENT" if percent else "" -1134 rows = self.sql(expression, "rows") -1135 rows = f"{rows} ROWS" if rows else "" -1136 size = self.sql(expression, "size") -1137 if size and self.TABLESAMPLE_SIZE_IS_PERCENT: -1138 size = f"{size} PERCENT" -1139 seed = self.sql(expression, "seed") -1140 seed = f" {seed_prefix} ({seed})" if seed else "" -1141 kind = expression.args.get("kind", "TABLESAMPLE") -1142 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" -1143 -1144 def pivot_sql(self, expression: exp.Pivot) -> str: -1145 this = self.sql(expression, "this") -1146 alias = self.sql(expression, "alias") -1147 alias = f" AS {alias}" if alias else "" -1148 unpivot = expression.args.get("unpivot") -1149 direction = "UNPIVOT" if unpivot else "PIVOT" -1150 expressions = self.expressions(expression, key="expressions") -1151 field = self.sql(expression, "field") -1152 return f"{this} {direction}({expressions} FOR {field}){alias}" -1153 -1154 def tuple_sql(self, expression: exp.Tuple) -> str: -1155 return f"({self.expressions(expression, flat=True)})" -1156 -1157 def update_sql(self, expression: exp.Update) -> str: -1158 this = self.sql(expression, "this") -1159 set_sql = self.expressions(expression, flat=True) -1160 from_sql = self.sql(expression, "from") -1161 where_sql = self.sql(expression, "where") -1162 returning = self.sql(expression, "returning") -1163 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" -1164 return self.prepend_ctes(expression, sql) -1165 -1166 def values_sql(self, expression: exp.Values) -> str: -1167 args = self.expressions(expression) -1168 alias = self.sql(expression, "alias") -1169 values = f"VALUES{self.seg('')}{args}" -1170 values = ( -1171 f"({values})" -1172 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1173 else values -1174 ) -1175 return f"{values} AS {alias}" if alias else values -1176 -1177 def var_sql(self, expression: exp.Var) -> str: -1178 return self.sql(expression, "this") -1179 -1180 def into_sql(self, expression: exp.Into) -> str: -1181 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1182 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1183 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1184 -1185 def from_sql(self, expression: exp.From) -> str: -1186 expressions = self.expressions(expression, flat=True) -1187 return f"{self.seg('FROM')} {expressions}" -1188 -1189 def group_sql(self, expression: exp.Group) -> str: -1190 group_by = self.op_expressions("GROUP BY", expression) -1191 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1192 grouping_sets = ( -1193 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1194 ) -1195 -1196 cube = expression.args.get("cube", []) -1197 if seq_get(cube, 0) is True: -1198 return f"{group_by}{self.seg('WITH CUBE')}" -1199 else: -1200 cube_sql = self.expressions(expression, key="cube", indent=False) -1201 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1202 -1203 rollup = expression.args.get("rollup", []) -1204 if seq_get(rollup, 0) is True: -1205 return f"{group_by}{self.seg('WITH ROLLUP')}" -1206 else: -1207 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1208 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1209 -1210 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1118 def tablesample_sql( +1119 self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS " +1120 ) -> str: +1121 if self.alias_post_tablesample and expression.this.alias: +1122 this = self.sql(expression.this, "this") +1123 alias = f"{sep}{self.sql(expression.this, 'alias')}" +1124 else: +1125 this = self.sql(expression, "this") +1126 alias = "" +1127 method = self.sql(expression, "method") +1128 method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else "" +1129 numerator = self.sql(expression, "bucket_numerator") +1130 denominator = self.sql(expression, "bucket_denominator") +1131 field = self.sql(expression, "bucket_field") +1132 field = f" ON {field}" if field else "" +1133 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1134 percent = self.sql(expression, "percent") +1135 percent = f"{percent} PERCENT" if percent else "" +1136 rows = self.sql(expression, "rows") +1137 rows = f"{rows} ROWS" if rows else "" +1138 size = self.sql(expression, "size") +1139 if size and self.TABLESAMPLE_SIZE_IS_PERCENT: +1140 size = f"{size} PERCENT" +1141 seed = self.sql(expression, "seed") +1142 seed = f" {seed_prefix} ({seed})" if seed else "" +1143 kind = expression.args.get("kind", "TABLESAMPLE") +1144 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1145 +1146 def pivot_sql(self, expression: exp.Pivot) -> str: +1147 this = self.sql(expression, "this") +1148 alias = self.sql(expression, "alias") +1149 alias = f" AS {alias}" if alias else "" +1150 unpivot = expression.args.get("unpivot") +1151 direction = "UNPIVOT" if unpivot else "PIVOT" +1152 expressions = self.expressions(expression, key="expressions") +1153 field = self.sql(expression, "field") +1154 return f"{this} {direction}({expressions} FOR {field}){alias}" +1155 +1156 def tuple_sql(self, expression: exp.Tuple) -> str: +1157 return f"({self.expressions(expression, flat=True)})" +1158 +1159 def update_sql(self, expression: exp.Update) -> str: +1160 this = self.sql(expression, "this") +1161 set_sql = self.expressions(expression, flat=True) +1162 from_sql = self.sql(expression, "from") +1163 where_sql = self.sql(expression, "where") +1164 returning = self.sql(expression, "returning") +1165 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1166 return self.prepend_ctes(expression, sql) +1167 +1168 def values_sql(self, expression: exp.Values) -> str: +1169 args = self.expressions(expression) +1170 alias = self.sql(expression, "alias") +1171 values = f"VALUES{self.seg('')}{args}" +1172 values = ( +1173 f"({values})" +1174 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1175 else values +1176 ) +1177 return f"{values} AS {alias}" if alias else values +1178 +1179 def var_sql(self, expression: exp.Var) -> str: +1180 return self.sql(expression, "this") +1181 +1182 def into_sql(self, expression: exp.Into) -> str: +1183 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1184 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1185 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1186 +1187 def from_sql(self, expression: exp.From) -> str: +1188 expressions = self.expressions(expression, flat=True) +1189 return f"{self.seg('FROM')} {expressions}" +1190 +1191 def group_sql(self, expression: exp.Group) -> str: +1192 group_by = self.op_expressions("GROUP BY", expression) +1193 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1194 grouping_sets = ( +1195 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1196 ) +1197 +1198 cube = expression.args.get("cube", []) +1199 if seq_get(cube, 0) is True: +1200 return f"{group_by}{self.seg('WITH CUBE')}" +1201 else: +1202 cube_sql = self.expressions(expression, key="cube", indent=False) +1203 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" +1204 +1205 rollup = expression.args.get("rollup", []) +1206 if seq_get(rollup, 0) is True: +1207 return f"{group_by}{self.seg('WITH ROLLUP')}" +1208 else: +1209 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1210 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" 1211 -1212 if expression.args.get("expressions") and groupings: -1213 group_by = f"{group_by}," -1214 -1215 return f"{group_by}{groupings}" +1212 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1213 +1214 if expression.args.get("expressions") and groupings: +1215 group_by = f"{group_by}," 1216 -1217 def having_sql(self, expression: exp.Having) -> str: -1218 this = self.indent(self.sql(expression, "this")) -1219 return f"{self.seg('HAVING')}{self.sep()}{this}" -1220 -1221 def join_sql(self, expression: exp.Join) -> str: -1222 op_sql = self.seg( -1223 " ".join( -1224 op -1225 for op in ( -1226 "NATURAL" if expression.args.get("natural") else None, -1227 expression.side, -1228 expression.kind, -1229 expression.hint if self.JOIN_HINTS else None, -1230 "JOIN", -1231 ) -1232 if op -1233 ) -1234 ) -1235 on_sql = self.sql(expression, "on") -1236 using = expression.args.get("using") -1237 -1238 if not on_sql and using: -1239 on_sql = csv(*(self.sql(column) for column in using)) -1240 -1241 if on_sql: -1242 on_sql = self.indent(on_sql, skip_first=True) -1243 space = self.seg(" " * self.pad) if self.pretty else " " -1244 if using: -1245 on_sql = f"{space}USING ({on_sql})" -1246 else: -1247 on_sql = f"{space}ON {on_sql}" -1248 -1249 expression_sql = self.sql(expression, "expression") -1250 this_sql = self.sql(expression, "this") -1251 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1252 -1253 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1254 args = self.expressions(expression, flat=True) -1255 args = f"({args})" if len(args.split(",")) > 1 else args -1256 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" -1257 -1258 def lateral_sql(self, expression: exp.Lateral) -> str: -1259 this = self.sql(expression, "this") -1260 -1261 if isinstance(expression.this, exp.Subquery): -1262 return f"LATERAL {this}" -1263 -1264 if expression.args.get("view"): -1265 alias = expression.args["alias"] -1266 columns = self.expressions(alias, key="columns", flat=True) -1267 table = f" {alias.name}" if alias.name else "" -1268 columns = f" AS {columns}" if columns else "" -1269 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1270 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1271 -1272 alias = self.sql(expression, "alias") -1273 alias = f" AS {alias}" if alias else "" -1274 return f"LATERAL {this}{alias}" -1275 -1276 def limit_sql(self, expression: exp.Limit) -> str: -1277 this = self.sql(expression, "this") -1278 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1279 -1280 def offset_sql(self, expression: exp.Offset) -> str: -1281 this = self.sql(expression, "this") -1282 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1283 -1284 def setitem_sql(self, expression: exp.SetItem) -> str: -1285 kind = self.sql(expression, "kind") -1286 kind = f"{kind} " if kind else "" -1287 this = self.sql(expression, "this") -1288 expressions = self.expressions(expression) -1289 collate = self.sql(expression, "collate") -1290 collate = f" COLLATE {collate}" if collate else "" -1291 global_ = "GLOBAL " if expression.args.get("global") else "" -1292 return f"{global_}{kind}{this}{expressions}{collate}" -1293 -1294 def set_sql(self, expression: exp.Set) -> str: -1295 expressions = ( -1296 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" -1297 ) -1298 return f"SET{expressions}" -1299 -1300 def pragma_sql(self, expression: exp.Pragma) -> str: -1301 return f"PRAGMA {self.sql(expression, 'this')}" -1302 -1303 def lock_sql(self, expression: exp.Lock) -> str: -1304 if self.LOCKING_READS_SUPPORTED: -1305 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1306 return self.seg(f"FOR {lock_type}") -1307 -1308 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1309 return "" -1310 -1311 def literal_sql(self, expression: exp.Literal) -> str: -1312 text = expression.this or "" -1313 if expression.is_string: -1314 text = text.replace(self.quote_end, self._escaped_quote_end) -1315 if self.pretty: -1316 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1317 text = f"{self.quote_start}{text}{self.quote_end}" -1318 return text -1319 -1320 def loaddata_sql(self, expression: exp.LoadData) -> str: -1321 local = " LOCAL" if expression.args.get("local") else "" -1322 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1323 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1324 this = f" INTO TABLE {self.sql(expression, 'this')}" -1325 partition = self.sql(expression, "partition") -1326 partition = f" {partition}" if partition else "" -1327 input_format = self.sql(expression, "input_format") -1328 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1329 serde = self.sql(expression, "serde") -1330 serde = f" SERDE {serde}" if serde else "" -1331 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" -1332 -1333 def null_sql(self, *_) -> str: -1334 return "NULL" -1335 -1336 def boolean_sql(self, expression: exp.Boolean) -> str: -1337 return "TRUE" if expression.this else "FALSE" -1338 -1339 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1340 this = self.sql(expression, "this") -1341 this = f"{this} " if this else this -1342 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1343 -1344 def cluster_sql(self, expression: exp.Cluster) -> str: -1345 return self.op_expressions("CLUSTER BY", expression) -1346 -1347 def distribute_sql(self, expression: exp.Distribute) -> str: -1348 return self.op_expressions("DISTRIBUTE BY", expression) -1349 -1350 def sort_sql(self, expression: exp.Sort) -> str: -1351 return self.op_expressions("SORT BY", expression) -1352 -1353 def ordered_sql(self, expression: exp.Ordered) -> str: -1354 desc = expression.args.get("desc") -1355 asc = not desc -1356 -1357 nulls_first = expression.args.get("nulls_first") -1358 nulls_last = not nulls_first -1359 nulls_are_large = self.null_ordering == "nulls_are_large" -1360 nulls_are_small = self.null_ordering == "nulls_are_small" -1361 nulls_are_last = self.null_ordering == "nulls_are_last" -1362 -1363 sort_order = " DESC" if desc else "" -1364 nulls_sort_change = "" -1365 if nulls_first and ( -1366 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1367 ): -1368 nulls_sort_change = " NULLS FIRST" -1369 elif ( -1370 nulls_last -1371 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1372 and not nulls_are_last -1373 ): -1374 nulls_sort_change = " NULLS LAST" -1375 -1376 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1377 self.unsupported( -1378 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1379 ) -1380 nulls_sort_change = "" -1381 -1382 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1217 return f"{group_by}{groupings}" +1218 +1219 def having_sql(self, expression: exp.Having) -> str: +1220 this = self.indent(self.sql(expression, "this")) +1221 return f"{self.seg('HAVING')}{self.sep()}{this}" +1222 +1223 def join_sql(self, expression: exp.Join) -> str: +1224 op_sql = self.seg( +1225 " ".join( +1226 op +1227 for op in ( +1228 "NATURAL" if expression.args.get("natural") else None, +1229 expression.side, +1230 expression.kind, +1231 expression.hint if self.JOIN_HINTS else None, +1232 "JOIN", +1233 ) +1234 if op +1235 ) +1236 ) +1237 on_sql = self.sql(expression, "on") +1238 using = expression.args.get("using") +1239 +1240 if not on_sql and using: +1241 on_sql = csv(*(self.sql(column) for column in using)) +1242 +1243 if on_sql: +1244 on_sql = self.indent(on_sql, skip_first=True) +1245 space = self.seg(" " * self.pad) if self.pretty else " " +1246 if using: +1247 on_sql = f"{space}USING ({on_sql})" +1248 else: +1249 on_sql = f"{space}ON {on_sql}" +1250 +1251 expression_sql = self.sql(expression, "expression") +1252 this_sql = self.sql(expression, "this") +1253 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1254 +1255 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1256 args = self.expressions(expression, flat=True) +1257 args = f"({args})" if len(args.split(",")) > 1 else args +1258 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1259 +1260 def lateral_sql(self, expression: exp.Lateral) -> str: +1261 this = self.sql(expression, "this") +1262 +1263 if isinstance(expression.this, exp.Subquery): +1264 return f"LATERAL {this}" +1265 +1266 if expression.args.get("view"): +1267 alias = expression.args["alias"] +1268 columns = self.expressions(alias, key="columns", flat=True) +1269 table = f" {alias.name}" if alias.name else "" +1270 columns = f" AS {columns}" if columns else "" +1271 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1272 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1273 +1274 alias = self.sql(expression, "alias") +1275 alias = f" AS {alias}" if alias else "" +1276 return f"LATERAL {this}{alias}" +1277 +1278 def limit_sql(self, expression: exp.Limit) -> str: +1279 this = self.sql(expression, "this") +1280 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1281 +1282 def offset_sql(self, expression: exp.Offset) -> str: +1283 this = self.sql(expression, "this") +1284 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1285 +1286 def setitem_sql(self, expression: exp.SetItem) -> str: +1287 kind = self.sql(expression, "kind") +1288 kind = f"{kind} " if kind else "" +1289 this = self.sql(expression, "this") +1290 expressions = self.expressions(expression) +1291 collate = self.sql(expression, "collate") +1292 collate = f" COLLATE {collate}" if collate else "" +1293 global_ = "GLOBAL " if expression.args.get("global") else "" +1294 return f"{global_}{kind}{this}{expressions}{collate}" +1295 +1296 def set_sql(self, expression: exp.Set) -> str: +1297 expressions = ( +1298 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" +1299 ) +1300 return f"SET{expressions}" +1301 +1302 def pragma_sql(self, expression: exp.Pragma) -> str: +1303 return f"PRAGMA {self.sql(expression, 'this')}" +1304 +1305 def lock_sql(self, expression: exp.Lock) -> str: +1306 if self.LOCKING_READS_SUPPORTED: +1307 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1308 return self.seg(f"FOR {lock_type}") +1309 +1310 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1311 return "" +1312 +1313 def literal_sql(self, expression: exp.Literal) -> str: +1314 text = expression.this or "" +1315 if expression.is_string: +1316 text = text.replace(self.quote_end, self._escaped_quote_end) +1317 if self.pretty: +1318 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1319 text = f"{self.quote_start}{text}{self.quote_end}" +1320 return text +1321 +1322 def loaddata_sql(self, expression: exp.LoadData) -> str: +1323 local = " LOCAL" if expression.args.get("local") else "" +1324 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1325 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1326 this = f" INTO TABLE {self.sql(expression, 'this')}" +1327 partition = self.sql(expression, "partition") +1328 partition = f" {partition}" if partition else "" +1329 input_format = self.sql(expression, "input_format") +1330 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1331 serde = self.sql(expression, "serde") +1332 serde = f" SERDE {serde}" if serde else "" +1333 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1334 +1335 def null_sql(self, *_) -> str: +1336 return "NULL" +1337 +1338 def boolean_sql(self, expression: exp.Boolean) -> str: +1339 return "TRUE" if expression.this else "FALSE" +1340 +1341 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1342 this = self.sql(expression, "this") +1343 this = f"{this} " if this else this +1344 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore +1345 +1346 def cluster_sql(self, expression: exp.Cluster) -> str: +1347 return self.op_expressions("CLUSTER BY", expression) +1348 +1349 def distribute_sql(self, expression: exp.Distribute) -> str: +1350 return self.op_expressions("DISTRIBUTE BY", expression) +1351 +1352 def sort_sql(self, expression: exp.Sort) -> str: +1353 return self.op_expressions("SORT BY", expression) +1354 +1355 def ordered_sql(self, expression: exp.Ordered) -> str: +1356 desc = expression.args.get("desc") +1357 asc = not desc +1358 +1359 nulls_first = expression.args.get("nulls_first") +1360 nulls_last = not nulls_first +1361 nulls_are_large = self.null_ordering == "nulls_are_large" +1362 nulls_are_small = self.null_ordering == "nulls_are_small" +1363 nulls_are_last = self.null_ordering == "nulls_are_last" +1364 +1365 sort_order = " DESC" if desc else "" +1366 nulls_sort_change = "" +1367 if nulls_first and ( +1368 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1369 ): +1370 nulls_sort_change = " NULLS FIRST" +1371 elif ( +1372 nulls_last +1373 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1374 and not nulls_are_last +1375 ): +1376 nulls_sort_change = " NULLS LAST" +1377 +1378 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1379 self.unsupported( +1380 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1381 ) +1382 nulls_sort_change = "" 1383 -1384 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1385 partition = self.partition_by_sql(expression) -1386 order = self.sql(expression, "order") -1387 measures = self.expressions(expression, key="measures") -1388 measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else "" -1389 rows = self.sql(expression, "rows") -1390 rows = self.seg(rows) if rows else "" -1391 after = self.sql(expression, "after") -1392 after = self.seg(after) if after else "" -1393 pattern = self.sql(expression, "pattern") -1394 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1395 definition_sqls = [ -1396 f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}" -1397 for definition in expression.args.get("define", []) -1398 ] -1399 definitions = self.expressions(sqls=definition_sqls) -1400 define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else "" -1401 body = "".join( -1402 ( -1403 partition, -1404 order, -1405 measures, -1406 rows, -1407 after, -1408 pattern, -1409 define, -1410 ) -1411 ) -1412 alias = self.sql(expression, "alias") -1413 alias = f" {alias}" if alias else "" -1414 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}" -1415 -1416 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1417 limit = expression.args.get("limit") -1418 -1419 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): -1420 limit = exp.Limit(expression=limit.args.get("count")) -1421 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): -1422 limit = exp.Fetch(direction="FIRST", count=limit.expression) -1423 -1424 fetch = isinstance(limit, exp.Fetch) +1384 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1385 +1386 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1387 partition = self.partition_by_sql(expression) +1388 order = self.sql(expression, "order") +1389 measures = self.expressions(expression, key="measures") +1390 measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else "" +1391 rows = self.sql(expression, "rows") +1392 rows = self.seg(rows) if rows else "" +1393 after = self.sql(expression, "after") +1394 after = self.seg(after) if after else "" +1395 pattern = self.sql(expression, "pattern") +1396 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1397 definition_sqls = [ +1398 f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}" +1399 for definition in expression.args.get("define", []) +1400 ] +1401 definitions = self.expressions(sqls=definition_sqls) +1402 define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else "" +1403 body = "".join( +1404 ( +1405 partition, +1406 order, +1407 measures, +1408 rows, +1409 after, +1410 pattern, +1411 define, +1412 ) +1413 ) +1414 alias = self.sql(expression, "alias") +1415 alias = f" {alias}" if alias else "" +1416 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}" +1417 +1418 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1419 limit = expression.args.get("limit") +1420 +1421 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): +1422 limit = exp.Limit(expression=limit.args.get("count")) +1423 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): +1424 limit = exp.Fetch(direction="FIRST", count=limit.expression) 1425 -1426 return csv( -1427 *sqls, -1428 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1429 self.sql(expression, "match"), -1430 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1431 self.sql(expression, "where"), -1432 self.sql(expression, "group"), -1433 self.sql(expression, "having"), -1434 self.sql(expression, "qualify"), -1435 self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True) -1436 if expression.args.get("windows") -1437 else "", -1438 self.sql(expression, "distribute"), -1439 self.sql(expression, "sort"), -1440 self.sql(expression, "cluster"), -1441 self.sql(expression, "order"), -1442 self.sql(expression, "offset") if fetch else self.sql(limit), -1443 self.sql(limit) if fetch else self.sql(expression, "offset"), -1444 self.sql(expression, "lock"), -1445 self.sql(expression, "sample"), -1446 sep="", -1447 ) -1448 -1449 def select_sql(self, expression: exp.Select) -> str: -1450 kind = expression.args.get("kind") -1451 kind = f" AS {kind}" if kind else "" -1452 hint = self.sql(expression, "hint") -1453 distinct = self.sql(expression, "distinct") -1454 distinct = f" {distinct}" if distinct else "" -1455 expressions = self.expressions(expression) -1456 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1457 sql = self.query_modifiers( -1458 expression, -1459 f"SELECT{kind}{hint}{distinct}{expressions}", -1460 self.sql(expression, "into", comment=False), -1461 self.sql(expression, "from", comment=False), -1462 ) -1463 return self.prepend_ctes(expression, sql) -1464 -1465 def schema_sql(self, expression: exp.Schema) -> str: -1466 this = self.sql(expression, "this") -1467 this = f"{this} " if this else "" -1468 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1469 return f"{this}{sql}" -1470 -1471 def star_sql(self, expression: exp.Star) -> str: -1472 except_ = self.expressions(expression, key="except", flat=True) -1473 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1474 replace = self.expressions(expression, key="replace", flat=True) -1475 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1476 return f"*{except_}{replace}" -1477 -1478 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1479 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1480 -1481 def parameter_sql(self, expression: exp.Parameter) -> str: -1482 this = self.sql(expression, "this") -1483 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1484 return f"{self.PARAMETER_TOKEN}{this}" -1485 -1486 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1487 this = self.sql(expression, "this") -1488 kind = expression.text("kind") -1489 if kind: -1490 kind = f"{kind}." -1491 return f"@@{kind}{this}" -1492 -1493 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1494 return f":{expression.name}" if expression.name else "?" -1495 -1496 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1497 alias = self.sql(expression, "alias") -1498 alias = f"{sep}{alias}" if alias else "" -1499 -1500 sql = self.query_modifiers( -1501 expression, -1502 self.wrap(expression), -1503 alias, -1504 self.expressions(expression, key="pivots", sep=" "), -1505 ) -1506 -1507 return self.prepend_ctes(expression, sql) +1426 fetch = isinstance(limit, exp.Fetch) +1427 +1428 return csv( +1429 *sqls, +1430 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1431 self.sql(expression, "match"), +1432 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1433 self.sql(expression, "where"), +1434 self.sql(expression, "group"), +1435 self.sql(expression, "having"), +1436 self.sql(expression, "qualify"), +1437 self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True) +1438 if expression.args.get("windows") +1439 else "", +1440 self.sql(expression, "distribute"), +1441 self.sql(expression, "sort"), +1442 self.sql(expression, "cluster"), +1443 self.sql(expression, "order"), +1444 self.sql(expression, "offset") if fetch else self.sql(limit), +1445 self.sql(limit) if fetch else self.sql(expression, "offset"), +1446 self.sql(expression, "lock"), +1447 self.sql(expression, "sample"), +1448 sep="", +1449 ) +1450 +1451 def select_sql(self, expression: exp.Select) -> str: +1452 kind = expression.args.get("kind") +1453 kind = f" AS {kind}" if kind else "" +1454 hint = self.sql(expression, "hint") +1455 distinct = self.sql(expression, "distinct") +1456 distinct = f" {distinct}" if distinct else "" +1457 expressions = self.expressions(expression) +1458 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1459 sql = self.query_modifiers( +1460 expression, +1461 f"SELECT{kind}{hint}{distinct}{expressions}", +1462 self.sql(expression, "into", comment=False), +1463 self.sql(expression, "from", comment=False), +1464 ) +1465 return self.prepend_ctes(expression, sql) +1466 +1467 def schema_sql(self, expression: exp.Schema) -> str: +1468 this = self.sql(expression, "this") +1469 this = f"{this} " if this else "" +1470 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1471 return f"{this}{sql}" +1472 +1473 def star_sql(self, expression: exp.Star) -> str: +1474 except_ = self.expressions(expression, key="except", flat=True) +1475 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1476 replace = self.expressions(expression, key="replace", flat=True) +1477 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1478 return f"*{except_}{replace}" +1479 +1480 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1481 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1482 +1483 def parameter_sql(self, expression: exp.Parameter) -> str: +1484 this = self.sql(expression, "this") +1485 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1486 return f"{self.PARAMETER_TOKEN}{this}" +1487 +1488 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1489 this = self.sql(expression, "this") +1490 kind = expression.text("kind") +1491 if kind: +1492 kind = f"{kind}." +1493 return f"@@{kind}{this}" +1494 +1495 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1496 return f":{expression.name}" if expression.name else "?" +1497 +1498 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1499 alias = self.sql(expression, "alias") +1500 alias = f"{sep}{alias}" if alias else "" +1501 +1502 sql = self.query_modifiers( +1503 expression, +1504 self.wrap(expression), +1505 alias, +1506 self.expressions(expression, key="pivots", sep=" "), +1507 ) 1508 -1509 def qualify_sql(self, expression: exp.Qualify) -> str: -1510 this = self.indent(self.sql(expression, "this")) -1511 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1512 -1513 def union_sql(self, expression: exp.Union) -> str: -1514 return self.prepend_ctes( -1515 expression, -1516 self.set_operation(expression, self.union_op(expression)), -1517 ) -1518 -1519 def union_op(self, expression: exp.Union) -> str: -1520 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1521 kind = kind if expression.args.get("distinct") else " ALL" -1522 return f"UNION{kind}" -1523 -1524 def unnest_sql(self, expression: exp.Unnest) -> str: -1525 args = self.expressions(expression, flat=True) -1526 alias = expression.args.get("alias") -1527 if alias and self.unnest_column_only: -1528 columns = alias.columns -1529 alias = self.sql(columns[0]) if columns else "" -1530 else: -1531 alias = self.sql(expression, "alias") -1532 alias = f" AS {alias}" if alias else alias -1533 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1534 offset = expression.args.get("offset") -1535 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1536 return f"UNNEST({args}){ordinality}{alias}{offset}" -1537 -1538 def where_sql(self, expression: exp.Where) -> str: -1539 this = self.indent(self.sql(expression, "this")) -1540 return f"{self.seg('WHERE')}{self.sep()}{this}" -1541 -1542 def window_sql(self, expression: exp.Window) -> str: -1543 this = self.sql(expression, "this") -1544 -1545 partition = self.partition_by_sql(expression) +1509 return self.prepend_ctes(expression, sql) +1510 +1511 def qualify_sql(self, expression: exp.Qualify) -> str: +1512 this = self.indent(self.sql(expression, "this")) +1513 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1514 +1515 def union_sql(self, expression: exp.Union) -> str: +1516 return self.prepend_ctes( +1517 expression, +1518 self.set_operation(expression, self.union_op(expression)), +1519 ) +1520 +1521 def union_op(self, expression: exp.Union) -> str: +1522 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1523 kind = kind if expression.args.get("distinct") else " ALL" +1524 return f"UNION{kind}" +1525 +1526 def unnest_sql(self, expression: exp.Unnest) -> str: +1527 args = self.expressions(expression, flat=True) +1528 alias = expression.args.get("alias") +1529 if alias and self.unnest_column_only: +1530 columns = alias.columns +1531 alias = self.sql(columns[0]) if columns else "" +1532 else: +1533 alias = self.sql(expression, "alias") +1534 alias = f" AS {alias}" if alias else alias +1535 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1536 offset = expression.args.get("offset") +1537 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1538 return f"UNNEST({args}){ordinality}{alias}{offset}" +1539 +1540 def where_sql(self, expression: exp.Where) -> str: +1541 this = self.indent(self.sql(expression, "this")) +1542 return f"{self.seg('WHERE')}{self.sep()}{this}" +1543 +1544 def window_sql(self, expression: exp.Window) -> str: +1545 this = self.sql(expression, "this") 1546 -1547 order = expression.args.get("order") -1548 order_sql = self.order_sql(order, flat=True) if order else "" -1549 -1550 partition_sql = partition + " " if partition and order else partition +1547 partition = self.partition_by_sql(expression) +1548 +1549 order = expression.args.get("order") +1550 order_sql = self.order_sql(order, flat=True) if order else "" 1551 -1552 spec = expression.args.get("spec") -1553 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1554 -1555 alias = self.sql(expression, "alias") -1556 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1557 -1558 if not partition and not order and not spec and alias: -1559 return f"{this} {alias}" +1552 partition_sql = partition + " " if partition and order else partition +1553 +1554 spec = expression.args.get("spec") +1555 spec_sql = " " + self.windowspec_sql(spec) if spec else "" +1556 +1557 alias = self.sql(expression, "alias") +1558 over = self.sql(expression, "over") or "OVER" +1559 this = f"{this} {'AS' if expression.arg_key == 'windows' else over}" 1560 -1561 window_args = alias + partition_sql + order_sql + spec_sql -1562 -1563 return f"{this} ({window_args.strip()})" -1564 -1565 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1566 partition = self.expressions(expression, key="partition_by", flat=True) -1567 return f"PARTITION BY {partition}" if partition else "" +1561 first = expression.args.get("first") +1562 if first is not None: +1563 first = " FIRST " if first else " LAST " +1564 first = first or "" +1565 +1566 if not partition and not order and not spec and alias: +1567 return f"{this} {alias}" 1568 -1569 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1570 kind = self.sql(expression, "kind") -1571 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1572 end = ( -1573 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1574 or "CURRENT ROW" -1575 ) -1576 return f"{kind} BETWEEN {start} AND {end}" -1577 -1578 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1579 this = self.sql(expression, "this") -1580 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1581 return f"{this} WITHIN GROUP ({expression_sql})" -1582 -1583 def between_sql(self, expression: exp.Between) -> str: -1584 this = self.sql(expression, "this") -1585 low = self.sql(expression, "low") -1586 high = self.sql(expression, "high") -1587 return f"{this} BETWEEN {low} AND {high}" -1588 -1589 def bracket_sql(self, expression: exp.Bracket) -> str: -1590 expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset) -1591 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1592 -1593 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1594 -1595 def all_sql(self, expression: exp.All) -> str: -1596 return f"ALL {self.wrap(expression)}" -1597 -1598 def any_sql(self, expression: exp.Any) -> str: -1599 this = self.sql(expression, "this") -1600 if isinstance(expression.this, exp.Subqueryable): -1601 this = self.wrap(this) -1602 return f"ANY {this}" -1603 -1604 def exists_sql(self, expression: exp.Exists) -> str: -1605 return f"EXISTS{self.wrap(expression)}" -1606 -1607 def case_sql(self, expression: exp.Case) -> str: -1608 this = self.sql(expression, "this") -1609 statements = [f"CASE {this}" if this else "CASE"] -1610 -1611 for e in expression.args["ifs"]: -1612 statements.append(f"WHEN {self.sql(e, 'this')}") -1613 statements.append(f"THEN {self.sql(e, 'true')}") +1569 window_args = alias + first + partition_sql + order_sql + spec_sql +1570 +1571 return f"{this} ({window_args.strip()})" +1572 +1573 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1574 partition = self.expressions(expression, key="partition_by", flat=True) +1575 return f"PARTITION BY {partition}" if partition else "" +1576 +1577 def windowspec_sql(self, expression: exp.WindowSpec) -> str: +1578 kind = self.sql(expression, "kind") +1579 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1580 end = ( +1581 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1582 or "CURRENT ROW" +1583 ) +1584 return f"{kind} BETWEEN {start} AND {end}" +1585 +1586 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1587 this = self.sql(expression, "this") +1588 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1589 return f"{this} WITHIN GROUP ({expression_sql})" +1590 +1591 def between_sql(self, expression: exp.Between) -> str: +1592 this = self.sql(expression, "this") +1593 low = self.sql(expression, "low") +1594 high = self.sql(expression, "high") +1595 return f"{this} BETWEEN {low} AND {high}" +1596 +1597 def bracket_sql(self, expression: exp.Bracket) -> str: +1598 expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset) +1599 expressions_sql = ", ".join(self.sql(e) for e in expressions) +1600 +1601 return f"{self.sql(expression, 'this')}[{expressions_sql}]" +1602 +1603 def all_sql(self, expression: exp.All) -> str: +1604 return f"ALL {self.wrap(expression)}" +1605 +1606 def any_sql(self, expression: exp.Any) -> str: +1607 this = self.sql(expression, "this") +1608 if isinstance(expression.this, exp.Subqueryable): +1609 this = self.wrap(this) +1610 return f"ANY {this}" +1611 +1612 def exists_sql(self, expression: exp.Exists) -> str: +1613 return f"EXISTS{self.wrap(expression)}" 1614 -1615 default = self.sql(expression, "default") -1616 -1617 if default: -1618 statements.append(f"ELSE {default}") -1619 -1620 statements.append("END") -1621 -1622 if self.pretty and self.text_width(statements) > self._max_text_width: -1623 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1615 def case_sql(self, expression: exp.Case) -> str: +1616 this = self.sql(expression, "this") +1617 statements = [f"CASE {this}" if this else "CASE"] +1618 +1619 for e in expression.args["ifs"]: +1620 statements.append(f"WHEN {self.sql(e, 'this')}") +1621 statements.append(f"THEN {self.sql(e, 'true')}") +1622 +1623 default = self.sql(expression, "default") 1624 -1625 return " ".join(statements) -1626 -1627 def constraint_sql(self, expression: exp.Constraint) -> str: -1628 this = self.sql(expression, "this") -1629 expressions = self.expressions(expression, flat=True) -1630 return f"CONSTRAINT {this} {expressions}" -1631 -1632 def extract_sql(self, expression: exp.Extract) -> str: -1633 this = self.sql(expression, "this") -1634 expression_sql = self.sql(expression, "expression") -1635 return f"EXTRACT({this} FROM {expression_sql})" -1636 -1637 def trim_sql(self, expression: exp.Trim) -> str: -1638 trim_type = self.sql(expression, "position") +1625 if default: +1626 statements.append(f"ELSE {default}") +1627 +1628 statements.append("END") +1629 +1630 if self.pretty and self.text_width(statements) > self._max_text_width: +1631 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1632 +1633 return " ".join(statements) +1634 +1635 def constraint_sql(self, expression: exp.Constraint) -> str: +1636 this = self.sql(expression, "this") +1637 expressions = self.expressions(expression, flat=True) +1638 return f"CONSTRAINT {this} {expressions}" 1639 -1640 if trim_type == "LEADING": -1641 return self.func("LTRIM", expression.this) -1642 elif trim_type == "TRAILING": -1643 return self.func("RTRIM", expression.this) -1644 else: -1645 return self.func("TRIM", expression.this, expression.expression) -1646 -1647 def concat_sql(self, expression: exp.Concat) -> str: -1648 if len(expression.expressions) == 1: -1649 return self.sql(expression.expressions[0]) -1650 return self.function_fallback_sql(expression) -1651 -1652 def check_sql(self, expression: exp.Check) -> str: -1653 this = self.sql(expression, key="this") -1654 return f"CHECK ({this})" -1655 -1656 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1657 expressions = self.expressions(expression, flat=True) -1658 reference = self.sql(expression, "reference") -1659 reference = f" {reference}" if reference else "" -1660 delete = self.sql(expression, "delete") -1661 delete = f" ON DELETE {delete}" if delete else "" -1662 update = self.sql(expression, "update") -1663 update = f" ON UPDATE {update}" if update else "" -1664 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" -1665 -1666 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1667 expressions = self.expressions(expression, flat=True) -1668 options = self.expressions(expression, key="options", flat=True, sep=" ") -1669 options = f" {options}" if options else "" -1670 return f"PRIMARY KEY ({expressions}){options}" -1671 -1672 def unique_sql(self, expression: exp.Unique) -> str: -1673 columns = self.expressions(expression, key="expressions") -1674 return f"UNIQUE ({columns})" -1675 -1676 def if_sql(self, expression: exp.If) -> str: -1677 return self.case_sql( -1678 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1679 ) -1680 -1681 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: -1682 modifier = expression.args.get("modifier") -1683 modifier = f" {modifier}" if modifier else "" -1684 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" -1685 -1686 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: -1687 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1640 def nextvaluefor_sql(self, expression: exp.NextValueFor) -> str: +1641 order = expression.args.get("order") +1642 order = f" OVER ({self.order_sql(order, flat=True)})" if order else "" +1643 return f"NEXT VALUE FOR {self.sql(expression, 'this')}{order}" +1644 +1645 def extract_sql(self, expression: exp.Extract) -> str: +1646 this = self.sql(expression, "this") +1647 expression_sql = self.sql(expression, "expression") +1648 return f"EXTRACT({this} FROM {expression_sql})" +1649 +1650 def trim_sql(self, expression: exp.Trim) -> str: +1651 trim_type = self.sql(expression, "position") +1652 +1653 if trim_type == "LEADING": +1654 return self.func("LTRIM", expression.this) +1655 elif trim_type == "TRAILING": +1656 return self.func("RTRIM", expression.this) +1657 else: +1658 return self.func("TRIM", expression.this, expression.expression) +1659 +1660 def concat_sql(self, expression: exp.Concat) -> str: +1661 if len(expression.expressions) == 1: +1662 return self.sql(expression.expressions[0]) +1663 return self.function_fallback_sql(expression) +1664 +1665 def check_sql(self, expression: exp.Check) -> str: +1666 this = self.sql(expression, key="this") +1667 return f"CHECK ({this})" +1668 +1669 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1670 expressions = self.expressions(expression, flat=True) +1671 reference = self.sql(expression, "reference") +1672 reference = f" {reference}" if reference else "" +1673 delete = self.sql(expression, "delete") +1674 delete = f" ON DELETE {delete}" if delete else "" +1675 update = self.sql(expression, "update") +1676 update = f" ON UPDATE {update}" if update else "" +1677 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1678 +1679 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1680 expressions = self.expressions(expression, flat=True) +1681 options = self.expressions(expression, key="options", flat=True, sep=" ") +1682 options = f" {options}" if options else "" +1683 return f"PRIMARY KEY ({expressions}){options}" +1684 +1685 def unique_sql(self, expression: exp.Unique) -> str: +1686 columns = self.expressions(expression, key="expressions") +1687 return f"UNIQUE ({columns})" 1688 -1689 def jsonobject_sql(self, expression: exp.JSONObject) -> str: -1690 expressions = self.expressions(expression) -1691 null_handling = expression.args.get("null_handling") -1692 null_handling = f" {null_handling}" if null_handling else "" -1693 unique_keys = expression.args.get("unique_keys") -1694 if unique_keys is not None: -1695 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" -1696 else: -1697 unique_keys = "" -1698 return_type = self.sql(expression, "return_type") -1699 return_type = f" RETURNING {return_type}" if return_type else "" -1700 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" -1701 encoding = self.sql(expression, "encoding") -1702 encoding = f" ENCODING {encoding}" if encoding else "" -1703 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" -1704 -1705 def in_sql(self, expression: exp.In) -> str: -1706 query = expression.args.get("query") -1707 unnest = expression.args.get("unnest") -1708 field = expression.args.get("field") -1709 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1710 -1711 if query: -1712 in_sql = self.wrap(query) -1713 elif unnest: -1714 in_sql = self.in_unnest_op(unnest) -1715 elif field: -1716 in_sql = self.sql(field) -1717 else: -1718 in_sql = f"({self.expressions(expression, flat=True)})" -1719 -1720 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1721 -1722 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1723 return f"(SELECT {self.sql(unnest)})" -1724 -1725 def interval_sql(self, expression: exp.Interval) -> str: -1726 unit = self.sql(expression, "unit") -1727 if not self.INTERVAL_ALLOWS_PLURAL_FORM: -1728 unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit) -1729 unit = f" {unit}" if unit else "" -1730 -1731 if self.SINGLE_STRING_INTERVAL: -1732 this = expression.this.name if expression.this else "" -1733 return f"INTERVAL '{this}{unit}'" +1689 def if_sql(self, expression: exp.If) -> str: +1690 return self.case_sql( +1691 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1692 ) +1693 +1694 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: +1695 modifier = expression.args.get("modifier") +1696 modifier = f" {modifier}" if modifier else "" +1697 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" +1698 +1699 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: +1700 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1701 +1702 def jsonobject_sql(self, expression: exp.JSONObject) -> str: +1703 expressions = self.expressions(expression) +1704 null_handling = expression.args.get("null_handling") +1705 null_handling = f" {null_handling}" if null_handling else "" +1706 unique_keys = expression.args.get("unique_keys") +1707 if unique_keys is not None: +1708 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" +1709 else: +1710 unique_keys = "" +1711 return_type = self.sql(expression, "return_type") +1712 return_type = f" RETURNING {return_type}" if return_type else "" +1713 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" +1714 encoding = self.sql(expression, "encoding") +1715 encoding = f" ENCODING {encoding}" if encoding else "" +1716 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" +1717 +1718 def in_sql(self, expression: exp.In) -> str: +1719 query = expression.args.get("query") +1720 unnest = expression.args.get("unnest") +1721 field = expression.args.get("field") +1722 is_global = " GLOBAL" if expression.args.get("is_global") else "" +1723 +1724 if query: +1725 in_sql = self.wrap(query) +1726 elif unnest: +1727 in_sql = self.in_unnest_op(unnest) +1728 elif field: +1729 in_sql = self.sql(field) +1730 else: +1731 in_sql = f"({self.expressions(expression, flat=True)})" +1732 +1733 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" 1734 -1735 this = self.sql(expression, "this") -1736 if this: -1737 unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES) -1738 this = f" {this}" if unwrapped else f" ({this})" -1739 -1740 return f"INTERVAL{this}{unit}" -1741 -1742 def return_sql(self, expression: exp.Return) -> str: -1743 return f"RETURN {self.sql(expression, 'this')}" -1744 -1745 def reference_sql(self, expression: exp.Reference) -> str: -1746 this = self.sql(expression, "this") -1747 expressions = self.expressions(expression, flat=True) -1748 expressions = f"({expressions})" if expressions else "" -1749 options = self.expressions(expression, key="options", flat=True, sep=" ") -1750 options = f" {options}" if options else "" -1751 return f"REFERENCES {this}{expressions}{options}" +1735 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1736 return f"(SELECT {self.sql(unnest)})" +1737 +1738 def interval_sql(self, expression: exp.Interval) -> str: +1739 unit = self.sql(expression, "unit") +1740 if not self.INTERVAL_ALLOWS_PLURAL_FORM: +1741 unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit) +1742 unit = f" {unit}" if unit else "" +1743 +1744 if self.SINGLE_STRING_INTERVAL: +1745 this = expression.this.name if expression.this else "" +1746 return f"INTERVAL '{this}{unit}'" +1747 +1748 this = self.sql(expression, "this") +1749 if this: +1750 unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES) +1751 this = f" {this}" if unwrapped else f" ({this})" 1752 -1753 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1754 return self.func(expression.name, *expression.expressions) -1755 -1756 def paren_sql(self, expression: exp.Paren) -> str: -1757 if isinstance(expression.unnest(), exp.Select): -1758 sql = self.wrap(expression) -1759 else: -1760 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1761 sql = f"({sql}{self.seg(')', sep='')}" -1762 -1763 return self.prepend_ctes(expression, sql) -1764 -1765 def neg_sql(self, expression: exp.Neg) -> str: -1766 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1767 this_sql = self.sql(expression, "this") -1768 sep = " " if this_sql[0] == "-" else "" -1769 return f"-{sep}{this_sql}" -1770 -1771 def not_sql(self, expression: exp.Not) -> str: -1772 return f"NOT {self.sql(expression, 'this')}" -1773 -1774 def alias_sql(self, expression: exp.Alias) -> str: -1775 alias = self.sql(expression, "alias") -1776 alias = f" AS {alias}" if alias else "" -1777 return f"{self.sql(expression, 'this')}{alias}" -1778 -1779 def aliases_sql(self, expression: exp.Aliases) -> str: -1780 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1781 -1782 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1783 this = self.sql(expression, "this") -1784 zone = self.sql(expression, "zone") -1785 return f"{this} AT TIME ZONE {zone}" +1753 return f"INTERVAL{this}{unit}" +1754 +1755 def return_sql(self, expression: exp.Return) -> str: +1756 return f"RETURN {self.sql(expression, 'this')}" +1757 +1758 def reference_sql(self, expression: exp.Reference) -> str: +1759 this = self.sql(expression, "this") +1760 expressions = self.expressions(expression, flat=True) +1761 expressions = f"({expressions})" if expressions else "" +1762 options = self.expressions(expression, key="options", flat=True, sep=" ") +1763 options = f" {options}" if options else "" +1764 return f"REFERENCES {this}{expressions}{options}" +1765 +1766 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1767 return self.func(expression.name, *expression.expressions) +1768 +1769 def paren_sql(self, expression: exp.Paren) -> str: +1770 if isinstance(expression.unnest(), exp.Select): +1771 sql = self.wrap(expression) +1772 else: +1773 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1774 sql = f"({sql}{self.seg(')', sep='')}" +1775 +1776 return self.prepend_ctes(expression, sql) +1777 +1778 def neg_sql(self, expression: exp.Neg) -> str: +1779 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1780 this_sql = self.sql(expression, "this") +1781 sep = " " if this_sql[0] == "-" else "" +1782 return f"-{sep}{this_sql}" +1783 +1784 def not_sql(self, expression: exp.Not) -> str: +1785 return f"NOT {self.sql(expression, 'this')}" 1786 -1787 def add_sql(self, expression: exp.Add) -> str: -1788 return self.binary(expression, "+") -1789 -1790 def and_sql(self, expression: exp.And) -> str: -1791 return self.connector_sql(expression, "AND") -1792 -1793 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1794 if not self.pretty: -1795 return self.binary(expression, op) -1796 -1797 sqls = tuple( -1798 self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e) -1799 for i, e in enumerate(expression.flatten(unnest=False)) -1800 ) -1801 -1802 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1803 return f"{sep}{op} ".join(sqls) -1804 -1805 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1806 return self.binary(expression, "&") -1807 -1808 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1809 return self.binary(expression, "<<") -1810 -1811 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1812 return f"~{self.sql(expression, 'this')}" -1813 -1814 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1815 return self.binary(expression, "|") -1816 -1817 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1818 return self.binary(expression, ">>") -1819 -1820 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1821 return self.binary(expression, "^") -1822 -1823 def cast_sql(self, expression: exp.Cast) -> str: -1824 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1825 -1826 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1827 zone = self.sql(expression, "this") -1828 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1787 def alias_sql(self, expression: exp.Alias) -> str: +1788 alias = self.sql(expression, "alias") +1789 alias = f" AS {alias}" if alias else "" +1790 return f"{self.sql(expression, 'this')}{alias}" +1791 +1792 def aliases_sql(self, expression: exp.Aliases) -> str: +1793 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1794 +1795 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1796 this = self.sql(expression, "this") +1797 zone = self.sql(expression, "zone") +1798 return f"{this} AT TIME ZONE {zone}" +1799 +1800 def add_sql(self, expression: exp.Add) -> str: +1801 return self.binary(expression, "+") +1802 +1803 def and_sql(self, expression: exp.And) -> str: +1804 return self.connector_sql(expression, "AND") +1805 +1806 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1807 if not self.pretty: +1808 return self.binary(expression, op) +1809 +1810 sqls = tuple( +1811 self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e) +1812 for i, e in enumerate(expression.flatten(unnest=False)) +1813 ) +1814 +1815 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1816 return f"{sep}{op} ".join(sqls) +1817 +1818 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1819 return self.binary(expression, "&") +1820 +1821 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1822 return self.binary(expression, "<<") +1823 +1824 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1825 return f"~{self.sql(expression, 'this')}" +1826 +1827 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1828 return self.binary(expression, "|") 1829 -1830 def collate_sql(self, expression: exp.Collate) -> str: -1831 return self.binary(expression, "COLLATE") +1830 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1831 return self.binary(expression, ">>") 1832 -1833 def command_sql(self, expression: exp.Command) -> str: -1834 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1833 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1834 return self.binary(expression, "^") 1835 -1836 def comment_sql(self, expression: exp.Comment) -> str: -1837 this = self.sql(expression, "this") -1838 kind = expression.args["kind"] -1839 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1840 expression_sql = self.sql(expression, "expression") -1841 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1836 def cast_sql(self, expression: exp.Cast) -> str: +1837 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1838 +1839 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1840 zone = self.sql(expression, "this") +1841 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" 1842 -1843 def transaction_sql(self, expression: exp.Transaction) -> str: -1844 return "BEGIN" +1843 def collate_sql(self, expression: exp.Collate) -> str: +1844 return self.binary(expression, "COLLATE") 1845 -1846 def commit_sql(self, expression: exp.Commit) -> str: -1847 chain = expression.args.get("chain") -1848 if chain is not None: -1849 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1850 -1851 return f"COMMIT{chain or ''}" -1852 -1853 def rollback_sql(self, expression: exp.Rollback) -> str: -1854 savepoint = expression.args.get("savepoint") -1855 savepoint = f" TO {savepoint}" if savepoint else "" -1856 return f"ROLLBACK{savepoint}" -1857 -1858 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1859 this = self.sql(expression, "this") -1860 -1861 dtype = self.sql(expression, "dtype") -1862 if dtype: -1863 collate = self.sql(expression, "collate") -1864 collate = f" COLLATE {collate}" if collate else "" -1865 using = self.sql(expression, "using") -1866 using = f" USING {using}" if using else "" -1867 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1868 -1869 default = self.sql(expression, "default") -1870 if default: -1871 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1872 -1873 if not expression.args.get("drop"): -1874 self.unsupported("Unsupported ALTER COLUMN syntax") -1875 -1876 return f"ALTER COLUMN {this} DROP DEFAULT" -1877 -1878 def renametable_sql(self, expression: exp.RenameTable) -> str: -1879 this = self.sql(expression, "this") -1880 return f"RENAME TO {this}" +1846 def command_sql(self, expression: exp.Command) -> str: +1847 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1848 +1849 def comment_sql(self, expression: exp.Comment) -> str: +1850 this = self.sql(expression, "this") +1851 kind = expression.args["kind"] +1852 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1853 expression_sql = self.sql(expression, "expression") +1854 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1855 +1856 def transaction_sql(self, expression: exp.Transaction) -> str: +1857 return "BEGIN" +1858 +1859 def commit_sql(self, expression: exp.Commit) -> str: +1860 chain = expression.args.get("chain") +1861 if chain is not None: +1862 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1863 +1864 return f"COMMIT{chain or ''}" +1865 +1866 def rollback_sql(self, expression: exp.Rollback) -> str: +1867 savepoint = expression.args.get("savepoint") +1868 savepoint = f" TO {savepoint}" if savepoint else "" +1869 return f"ROLLBACK{savepoint}" +1870 +1871 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1872 this = self.sql(expression, "this") +1873 +1874 dtype = self.sql(expression, "dtype") +1875 if dtype: +1876 collate = self.sql(expression, "collate") +1877 collate = f" COLLATE {collate}" if collate else "" +1878 using = self.sql(expression, "using") +1879 using = f" USING {using}" if using else "" +1880 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" 1881 -1882 def altertable_sql(self, expression: exp.AlterTable) -> str: -1883 actions = expression.args["actions"] -1884 -1885 if isinstance(actions[0], exp.ColumnDef): -1886 actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ") -1887 elif isinstance(actions[0], exp.Schema): -1888 actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ") -1889 elif isinstance(actions[0], exp.Delete): -1890 actions = self.expressions(expression, key="actions", flat=True) -1891 else: -1892 actions = self.expressions(expression, key="actions") -1893 -1894 exists = " IF EXISTS" if expression.args.get("exists") else "" -1895 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1896 -1897 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1898 expressions = self.expressions(expression) -1899 exists = " IF EXISTS " if expression.args.get("exists") else " " -1900 return f"DROP{exists}{expressions}" -1901 -1902 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1903 this = self.sql(expression, "this") -1904 expression_ = self.sql(expression, "expression") -1905 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" +1882 default = self.sql(expression, "default") +1883 if default: +1884 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1885 +1886 if not expression.args.get("drop"): +1887 self.unsupported("Unsupported ALTER COLUMN syntax") +1888 +1889 return f"ALTER COLUMN {this} DROP DEFAULT" +1890 +1891 def renametable_sql(self, expression: exp.RenameTable) -> str: +1892 this = self.sql(expression, "this") +1893 return f"RENAME TO {this}" +1894 +1895 def altertable_sql(self, expression: exp.AlterTable) -> str: +1896 actions = expression.args["actions"] +1897 +1898 if isinstance(actions[0], exp.ColumnDef): +1899 actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ") +1900 elif isinstance(actions[0], exp.Schema): +1901 actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ") +1902 elif isinstance(actions[0], exp.Delete): +1903 actions = self.expressions(expression, key="actions", flat=True) +1904 else: +1905 actions = self.expressions(expression, key="actions") 1906 -1907 enforced = expression.args.get("enforced") -1908 if enforced is not None: -1909 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" -1910 -1911 return f"{add_constraint} {expression_}" -1912 -1913 def distinct_sql(self, expression: exp.Distinct) -> str: -1914 this = self.expressions(expression, flat=True) -1915 this = f" {this}" if this else "" -1916 -1917 on = self.sql(expression, "on") -1918 on = f" ON {on}" if on else "" -1919 return f"DISTINCT{this}{on}" -1920 -1921 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1922 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1907 exists = " IF EXISTS" if expression.args.get("exists") else "" +1908 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" +1909 +1910 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1911 expressions = self.expressions(expression) +1912 exists = " IF EXISTS " if expression.args.get("exists") else " " +1913 return f"DROP{exists}{expressions}" +1914 +1915 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1916 this = self.sql(expression, "this") +1917 expression_ = self.sql(expression, "expression") +1918 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" +1919 +1920 enforced = expression.args.get("enforced") +1921 if enforced is not None: +1922 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" 1923 -1924 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1925 return f"{self.sql(expression, 'this')} RESPECT NULLS" -1926 -1927 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1928 return self.sql( -1929 exp.Cast( -1930 this=exp.Div(this=expression.this, expression=expression.expression), -1931 to=exp.DataType(this=exp.DataType.Type.INT), -1932 ) -1933 ) -1934 -1935 def dpipe_sql(self, expression: exp.DPipe) -> str: -1936 return self.binary(expression, "||") -1937 -1938 def div_sql(self, expression: exp.Div) -> str: -1939 return self.binary(expression, "/") -1940 -1941 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1942 return self.binary(expression, "OVERLAPS") -1943 -1944 def distance_sql(self, expression: exp.Distance) -> str: -1945 return self.binary(expression, "<->") -1946 -1947 def dot_sql(self, expression: exp.Dot) -> str: -1948 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1949 -1950 def eq_sql(self, expression: exp.EQ) -> str: -1951 return self.binary(expression, "=") -1952 -1953 def escape_sql(self, expression: exp.Escape) -> str: -1954 return self.binary(expression, "ESCAPE") -1955 -1956 def glob_sql(self, expression: exp.Glob) -> str: -1957 return self.binary(expression, "GLOB") -1958 -1959 def gt_sql(self, expression: exp.GT) -> str: -1960 return self.binary(expression, ">") -1961 -1962 def gte_sql(self, expression: exp.GTE) -> str: -1963 return self.binary(expression, ">=") -1964 -1965 def ilike_sql(self, expression: exp.ILike) -> str: -1966 return self.binary(expression, "ILIKE") -1967 -1968 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: -1969 return self.binary(expression, "ILIKE ANY") -1970 -1971 def is_sql(self, expression: exp.Is) -> str: -1972 return self.binary(expression, "IS") -1973 -1974 def like_sql(self, expression: exp.Like) -> str: -1975 return self.binary(expression, "LIKE") -1976 -1977 def likeany_sql(self, expression: exp.LikeAny) -> str: -1978 return self.binary(expression, "LIKE ANY") -1979 -1980 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1981 return self.binary(expression, "SIMILAR TO") -1982 -1983 def lt_sql(self, expression: exp.LT) -> str: -1984 return self.binary(expression, "<") -1985 -1986 def lte_sql(self, expression: exp.LTE) -> str: -1987 return self.binary(expression, "<=") -1988 -1989 def mod_sql(self, expression: exp.Mod) -> str: -1990 return self.binary(expression, "%") -1991 -1992 def mul_sql(self, expression: exp.Mul) -> str: -1993 return self.binary(expression, "*") -1994 -1995 def neq_sql(self, expression: exp.NEQ) -> str: -1996 return self.binary(expression, "<>") -1997 -1998 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -1999 return self.binary(expression, "IS NOT DISTINCT FROM") -2000 -2001 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -2002 return self.binary(expression, "IS DISTINCT FROM") -2003 -2004 def or_sql(self, expression: exp.Or) -> str: -2005 return self.connector_sql(expression, "OR") -2006 -2007 def slice_sql(self, expression: exp.Slice) -> str: -2008 return self.binary(expression, ":") -2009 -2010 def sub_sql(self, expression: exp.Sub) -> str: -2011 return self.binary(expression, "-") -2012 -2013 def trycast_sql(self, expression: exp.TryCast) -> str: -2014 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -2015 -2016 def use_sql(self, expression: exp.Use) -> str: -2017 kind = self.sql(expression, "kind") -2018 kind = f" {kind}" if kind else "" -2019 this = self.sql(expression, "this") -2020 this = f" {this}" if this else "" -2021 return f"USE{kind}{this}" +1924 return f"{add_constraint} {expression_}" +1925 +1926 def distinct_sql(self, expression: exp.Distinct) -> str: +1927 this = self.expressions(expression, flat=True) +1928 this = f" {this}" if this else "" +1929 +1930 on = self.sql(expression, "on") +1931 on = f" ON {on}" if on else "" +1932 return f"DISTINCT{this}{on}" +1933 +1934 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1935 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1936 +1937 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1938 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1939 +1940 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1941 return self.sql( +1942 exp.Cast( +1943 this=exp.Div(this=expression.this, expression=expression.expression), +1944 to=exp.DataType(this=exp.DataType.Type.INT), +1945 ) +1946 ) +1947 +1948 def dpipe_sql(self, expression: exp.DPipe) -> str: +1949 return self.binary(expression, "||") +1950 +1951 def div_sql(self, expression: exp.Div) -> str: +1952 return self.binary(expression, "/") +1953 +1954 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1955 return self.binary(expression, "OVERLAPS") +1956 +1957 def distance_sql(self, expression: exp.Distance) -> str: +1958 return self.binary(expression, "<->") +1959 +1960 def dot_sql(self, expression: exp.Dot) -> str: +1961 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1962 +1963 def eq_sql(self, expression: exp.EQ) -> str: +1964 return self.binary(expression, "=") +1965 +1966 def escape_sql(self, expression: exp.Escape) -> str: +1967 return self.binary(expression, "ESCAPE") +1968 +1969 def glob_sql(self, expression: exp.Glob) -> str: +1970 return self.binary(expression, "GLOB") +1971 +1972 def gt_sql(self, expression: exp.GT) -> str: +1973 return self.binary(expression, ">") +1974 +1975 def gte_sql(self, expression: exp.GTE) -> str: +1976 return self.binary(expression, ">=") +1977 +1978 def ilike_sql(self, expression: exp.ILike) -> str: +1979 return self.binary(expression, "ILIKE") +1980 +1981 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +1982 return self.binary(expression, "ILIKE ANY") +1983 +1984 def is_sql(self, expression: exp.Is) -> str: +1985 return self.binary(expression, "IS") +1986 +1987 def like_sql(self, expression: exp.Like) -> str: +1988 return self.binary(expression, "LIKE") +1989 +1990 def likeany_sql(self, expression: exp.LikeAny) -> str: +1991 return self.binary(expression, "LIKE ANY") +1992 +1993 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1994 return self.binary(expression, "SIMILAR TO") +1995 +1996 def lt_sql(self, expression: exp.LT) -> str: +1997 return self.binary(expression, "<") +1998 +1999 def lte_sql(self, expression: exp.LTE) -> str: +2000 return self.binary(expression, "<=") +2001 +2002 def mod_sql(self, expression: exp.Mod) -> str: +2003 return self.binary(expression, "%") +2004 +2005 def mul_sql(self, expression: exp.Mul) -> str: +2006 return self.binary(expression, "*") +2007 +2008 def neq_sql(self, expression: exp.NEQ) -> str: +2009 return self.binary(expression, "<>") +2010 +2011 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +2012 return self.binary(expression, "IS NOT DISTINCT FROM") +2013 +2014 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +2015 return self.binary(expression, "IS DISTINCT FROM") +2016 +2017 def or_sql(self, expression: exp.Or) -> str: +2018 return self.connector_sql(expression, "OR") +2019 +2020 def slice_sql(self, expression: exp.Slice) -> str: +2021 return self.binary(expression, ":") 2022 -2023 def binary(self, expression: exp.Binary, op: str) -> str: -2024 op = self.maybe_comment(op, comments=expression.comments) -2025 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" -2026 -2027 def function_fallback_sql(self, expression: exp.Func) -> str: -2028 args = [] -2029 for arg_value in expression.args.values(): -2030 if isinstance(arg_value, list): -2031 for value in arg_value: -2032 args.append(value) -2033 else: -2034 args.append(arg_value) +2023 def sub_sql(self, expression: exp.Sub) -> str: +2024 return self.binary(expression, "-") +2025 +2026 def trycast_sql(self, expression: exp.TryCast) -> str: +2027 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +2028 +2029 def use_sql(self, expression: exp.Use) -> str: +2030 kind = self.sql(expression, "kind") +2031 kind = f" {kind}" if kind else "" +2032 this = self.sql(expression, "this") +2033 this = f" {this}" if this else "" +2034 return f"USE{kind}{this}" 2035 -2036 return self.func(expression.sql_name(), *args) -2037 -2038 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -2039 return f"{self.normalize_func(name)}({self.format_args(*args)})" -2040 -2041 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -2042 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -2043 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -2044 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -2045 return ", ".join(arg_sqls) -2046 -2047 def text_width(self, args: t.Iterable) -> int: -2048 return sum(len(arg) for arg in args) -2049 -2050 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -2051 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -2052 -2053 def expressions( -2054 self, -2055 expression: t.Optional[exp.Expression] = None, -2056 key: t.Optional[str] = None, -2057 sqls: t.Optional[t.List[str]] = None, -2058 flat: bool = False, -2059 indent: bool = True, -2060 sep: str = ", ", -2061 prefix: str = "", -2062 ) -> str: -2063 expressions = expression.args.get(key or "expressions") if expression else sqls -2064 -2065 if not expressions: -2066 return "" -2067 -2068 if flat: -2069 return sep.join(self.sql(e) for e in expressions) -2070 -2071 num_sqls = len(expressions) -2072 -2073 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -2074 pad = " " * self.pad -2075 stripped_sep = sep.strip() -2076 -2077 result_sqls = [] -2078 for i, e in enumerate(expressions): -2079 sql = self.sql(e, comment=False) -2080 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -2081 -2082 if self.pretty: -2083 if self._leading_comma: -2084 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -2085 else: -2086 result_sqls.append( -2087 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -2088 ) -2089 else: -2090 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -2091 -2092 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -2093 return self.indent(result_sql, skip_first=False) if indent else result_sql +2036 def binary(self, expression: exp.Binary, op: str) -> str: +2037 op = self.maybe_comment(op, comments=expression.comments) +2038 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +2039 +2040 def function_fallback_sql(self, expression: exp.Func) -> str: +2041 args = [] +2042 for arg_value in expression.args.values(): +2043 if isinstance(arg_value, list): +2044 for value in arg_value: +2045 args.append(value) +2046 else: +2047 args.append(arg_value) +2048 +2049 return self.func(expression.sql_name(), *args) +2050 +2051 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +2052 return f"{self.normalize_func(name)}({self.format_args(*args)})" +2053 +2054 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +2055 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +2056 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +2057 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +2058 return ", ".join(arg_sqls) +2059 +2060 def text_width(self, args: t.Iterable) -> int: +2061 return sum(len(arg) for arg in args) +2062 +2063 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +2064 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +2065 +2066 def expressions( +2067 self, +2068 expression: t.Optional[exp.Expression] = None, +2069 key: t.Optional[str] = None, +2070 sqls: t.Optional[t.List[str]] = None, +2071 flat: bool = False, +2072 indent: bool = True, +2073 sep: str = ", ", +2074 prefix: str = "", +2075 ) -> str: +2076 expressions = expression.args.get(key or "expressions") if expression else sqls +2077 +2078 if not expressions: +2079 return "" +2080 +2081 if flat: +2082 return sep.join(self.sql(e) for e in expressions) +2083 +2084 num_sqls = len(expressions) +2085 +2086 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +2087 pad = " " * self.pad +2088 stripped_sep = sep.strip() +2089 +2090 result_sqls = [] +2091 for i, e in enumerate(expressions): +2092 sql = self.sql(e, comment=False) +2093 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" 2094 -2095 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -2096 flat = flat or isinstance(expression.parent, exp.Properties) -2097 expressions_sql = self.expressions(expression, flat=flat) -2098 if flat: -2099 return f"{op} {expressions_sql}" -2100 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" -2101 -2102 def naked_property(self, expression: exp.Property) -> str: -2103 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -2104 if not property_name: -2105 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -2106 return f"{property_name} {self.sql(expression, 'this')}" +2095 if self.pretty: +2096 if self._leading_comma: +2097 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +2098 else: +2099 result_sqls.append( +2100 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +2101 ) +2102 else: +2103 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +2104 +2105 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +2106 return self.indent(result_sql, skip_first=False) if indent else result_sql 2107 -2108 def set_operation(self, expression: exp.Expression, op: str) -> str: -2109 this = self.sql(expression, "this") -2110 op = self.seg(op) -2111 return self.query_modifiers( -2112 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -2113 ) +2108 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +2109 flat = flat or isinstance(expression.parent, exp.Properties) +2110 expressions_sql = self.expressions(expression, flat=flat) +2111 if flat: +2112 return f"{op} {expressions_sql}" +2113 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" 2114 -2115 def tag_sql(self, expression: exp.Tag) -> str: -2116 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -2117 -2118 def token_sql(self, token_type: TokenType) -> str: -2119 return self.TOKEN_MAPPING.get(token_type, token_type.name) +2115 def naked_property(self, expression: exp.Property) -> str: +2116 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +2117 if not property_name: +2118 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +2119 return f"{property_name} {self.sql(expression, 'this')}" 2120 -2121 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2121 def set_operation(self, expression: exp.Expression, op: str) -> str: 2122 this = self.sql(expression, "this") -2123 expressions = self.no_identify(self.expressions, expression) -2124 expressions = ( -2125 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2123 op = self.seg(op) +2124 return self.query_modifiers( +2125 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" 2126 ) -2127 return f"{this}{expressions}" -2128 -2129 def joinhint_sql(self, expression: exp.JoinHint) -> str: -2130 this = self.sql(expression, "this") -2131 expressions = self.expressions(expression, flat=True) -2132 return f"{this}({expressions})" +2127 +2128 def tag_sql(self, expression: exp.Tag) -> str: +2129 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +2130 +2131 def token_sql(self, token_type: TokenType) -> str: +2132 return self.TOKEN_MAPPING.get(token_type, token_type.name) 2133 -2134 def kwarg_sql(self, expression: exp.Kwarg) -> str: -2135 return self.binary(expression, "=>") -2136 -2137 def when_sql(self, expression: exp.When) -> str: -2138 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" -2139 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" -2140 condition = self.sql(expression, "condition") -2141 condition = f" AND {condition}" if condition else "" -2142 -2143 then_expression = expression.args.get("then") -2144 if isinstance(then_expression, exp.Insert): -2145 then = f"INSERT {self.sql(then_expression, 'this')}" -2146 if "expression" in then_expression.args: -2147 then += f" VALUES {self.sql(then_expression, 'expression')}" -2148 elif isinstance(then_expression, exp.Update): -2149 if isinstance(then_expression.args.get("expressions"), exp.Star): -2150 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -2151 else: -2152 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -2153 else: -2154 then = self.sql(then_expression) -2155 return f"WHEN {matched}{source}{condition} THEN {then}" -2156 -2157 def merge_sql(self, expression: exp.Merge) -> str: -2158 this = self.sql(expression, "this") -2159 using = f"USING {self.sql(expression, 'using')}" -2160 on = f"ON {self.sql(expression, 'on')}" -2161 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" -2162 -2163 def tochar_sql(self, expression: exp.ToChar) -> str: -2164 if expression.args.get("format"): -2165 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") -2166 -2167 return self.sql(exp.cast(expression.this, "text")) +2134 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2135 this = self.sql(expression, "this") +2136 expressions = self.no_identify(self.expressions, expression) +2137 expressions = ( +2138 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2139 ) +2140 return f"{this}{expressions}" +2141 +2142 def joinhint_sql(self, expression: exp.JoinHint) -> str: +2143 this = self.sql(expression, "this") +2144 expressions = self.expressions(expression, flat=True) +2145 return f"{this}({expressions})" +2146 +2147 def kwarg_sql(self, expression: exp.Kwarg) -> str: +2148 return self.binary(expression, "=>") +2149 +2150 def when_sql(self, expression: exp.When) -> str: +2151 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +2152 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +2153 condition = self.sql(expression, "condition") +2154 condition = f" AND {condition}" if condition else "" +2155 +2156 then_expression = expression.args.get("then") +2157 if isinstance(then_expression, exp.Insert): +2158 then = f"INSERT {self.sql(then_expression, 'this')}" +2159 if "expression" in then_expression.args: +2160 then += f" VALUES {self.sql(then_expression, 'expression')}" +2161 elif isinstance(then_expression, exp.Update): +2162 if isinstance(then_expression.args.get("expressions"), exp.Star): +2163 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +2164 else: +2165 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +2166 else: +2167 then = self.sql(then_expression) +2168 return f"WHEN {matched}{source}{condition} THEN {then}" +2169 +2170 def merge_sql(self, expression: exp.Merge) -> str: +2171 this = self.sql(expression, "this") +2172 using = f"USING {self.sql(expression, 'using')}" +2173 on = f"ON {self.sql(expression, 'on')}" +2174 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2175 +2176 def tochar_sql(self, expression: exp.ToChar) -> str: +2177 if expression.args.get("format"): +2178 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") +2179 +2180 return self.sql(exp.cast(expression.this, "text"))
    @@ -3425,7 +3441,7 @@
    525 526 def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: 527 this = self.sql(expression, "this") - 528 kind_sql = self.sql(expression, "kind") + 528 kind_sql = self.sql(expression, "kind").strip() 529 return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql 530 531 def autoincrementcolumnconstraint_sql(self, _) -> str: @@ -4016,1056 +4032,1069 @@ 1116 1117 return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" 1118 -1119 def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: -1120 if self.alias_post_tablesample and expression.this.alias: -1121 this = self.sql(expression.this, "this") -1122 alias = f" AS {self.sql(expression.this, 'alias')}" -1123 else: -1124 this = self.sql(expression, "this") -1125 alias = "" -1126 method = self.sql(expression, "method") -1127 method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else "" -1128 numerator = self.sql(expression, "bucket_numerator") -1129 denominator = self.sql(expression, "bucket_denominator") -1130 field = self.sql(expression, "bucket_field") -1131 field = f" ON {field}" if field else "" -1132 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" -1133 percent = self.sql(expression, "percent") -1134 percent = f"{percent} PERCENT" if percent else "" -1135 rows = self.sql(expression, "rows") -1136 rows = f"{rows} ROWS" if rows else "" -1137 size = self.sql(expression, "size") -1138 if size and self.TABLESAMPLE_SIZE_IS_PERCENT: -1139 size = f"{size} PERCENT" -1140 seed = self.sql(expression, "seed") -1141 seed = f" {seed_prefix} ({seed})" if seed else "" -1142 kind = expression.args.get("kind", "TABLESAMPLE") -1143 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" -1144 -1145 def pivot_sql(self, expression: exp.Pivot) -> str: -1146 this = self.sql(expression, "this") -1147 alias = self.sql(expression, "alias") -1148 alias = f" AS {alias}" if alias else "" -1149 unpivot = expression.args.get("unpivot") -1150 direction = "UNPIVOT" if unpivot else "PIVOT" -1151 expressions = self.expressions(expression, key="expressions") -1152 field = self.sql(expression, "field") -1153 return f"{this} {direction}({expressions} FOR {field}){alias}" -1154 -1155 def tuple_sql(self, expression: exp.Tuple) -> str: -1156 return f"({self.expressions(expression, flat=True)})" -1157 -1158 def update_sql(self, expression: exp.Update) -> str: -1159 this = self.sql(expression, "this") -1160 set_sql = self.expressions(expression, flat=True) -1161 from_sql = self.sql(expression, "from") -1162 where_sql = self.sql(expression, "where") -1163 returning = self.sql(expression, "returning") -1164 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" -1165 return self.prepend_ctes(expression, sql) -1166 -1167 def values_sql(self, expression: exp.Values) -> str: -1168 args = self.expressions(expression) -1169 alias = self.sql(expression, "alias") -1170 values = f"VALUES{self.seg('')}{args}" -1171 values = ( -1172 f"({values})" -1173 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) -1174 else values -1175 ) -1176 return f"{values} AS {alias}" if alias else values -1177 -1178 def var_sql(self, expression: exp.Var) -> str: -1179 return self.sql(expression, "this") -1180 -1181 def into_sql(self, expression: exp.Into) -> str: -1182 temporary = " TEMPORARY" if expression.args.get("temporary") else "" -1183 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" -1184 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" -1185 -1186 def from_sql(self, expression: exp.From) -> str: -1187 expressions = self.expressions(expression, flat=True) -1188 return f"{self.seg('FROM')} {expressions}" -1189 -1190 def group_sql(self, expression: exp.Group) -> str: -1191 group_by = self.op_expressions("GROUP BY", expression) -1192 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) -1193 grouping_sets = ( -1194 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" -1195 ) -1196 -1197 cube = expression.args.get("cube", []) -1198 if seq_get(cube, 0) is True: -1199 return f"{group_by}{self.seg('WITH CUBE')}" -1200 else: -1201 cube_sql = self.expressions(expression, key="cube", indent=False) -1202 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" -1203 -1204 rollup = expression.args.get("rollup", []) -1205 if seq_get(rollup, 0) is True: -1206 return f"{group_by}{self.seg('WITH ROLLUP')}" -1207 else: -1208 rollup_sql = self.expressions(expression, key="rollup", indent=False) -1209 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" -1210 -1211 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1119 def tablesample_sql( +1120 self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS " +1121 ) -> str: +1122 if self.alias_post_tablesample and expression.this.alias: +1123 this = self.sql(expression.this, "this") +1124 alias = f"{sep}{self.sql(expression.this, 'alias')}" +1125 else: +1126 this = self.sql(expression, "this") +1127 alias = "" +1128 method = self.sql(expression, "method") +1129 method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else "" +1130 numerator = self.sql(expression, "bucket_numerator") +1131 denominator = self.sql(expression, "bucket_denominator") +1132 field = self.sql(expression, "bucket_field") +1133 field = f" ON {field}" if field else "" +1134 bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else "" +1135 percent = self.sql(expression, "percent") +1136 percent = f"{percent} PERCENT" if percent else "" +1137 rows = self.sql(expression, "rows") +1138 rows = f"{rows} ROWS" if rows else "" +1139 size = self.sql(expression, "size") +1140 if size and self.TABLESAMPLE_SIZE_IS_PERCENT: +1141 size = f"{size} PERCENT" +1142 seed = self.sql(expression, "seed") +1143 seed = f" {seed_prefix} ({seed})" if seed else "" +1144 kind = expression.args.get("kind", "TABLESAMPLE") +1145 return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}" +1146 +1147 def pivot_sql(self, expression: exp.Pivot) -> str: +1148 this = self.sql(expression, "this") +1149 alias = self.sql(expression, "alias") +1150 alias = f" AS {alias}" if alias else "" +1151 unpivot = expression.args.get("unpivot") +1152 direction = "UNPIVOT" if unpivot else "PIVOT" +1153 expressions = self.expressions(expression, key="expressions") +1154 field = self.sql(expression, "field") +1155 return f"{this} {direction}({expressions} FOR {field}){alias}" +1156 +1157 def tuple_sql(self, expression: exp.Tuple) -> str: +1158 return f"({self.expressions(expression, flat=True)})" +1159 +1160 def update_sql(self, expression: exp.Update) -> str: +1161 this = self.sql(expression, "this") +1162 set_sql = self.expressions(expression, flat=True) +1163 from_sql = self.sql(expression, "from") +1164 where_sql = self.sql(expression, "where") +1165 returning = self.sql(expression, "returning") +1166 sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}" +1167 return self.prepend_ctes(expression, sql) +1168 +1169 def values_sql(self, expression: exp.Values) -> str: +1170 args = self.expressions(expression) +1171 alias = self.sql(expression, "alias") +1172 values = f"VALUES{self.seg('')}{args}" +1173 values = ( +1174 f"({values})" +1175 if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From)) +1176 else values +1177 ) +1178 return f"{values} AS {alias}" if alias else values +1179 +1180 def var_sql(self, expression: exp.Var) -> str: +1181 return self.sql(expression, "this") +1182 +1183 def into_sql(self, expression: exp.Into) -> str: +1184 temporary = " TEMPORARY" if expression.args.get("temporary") else "" +1185 unlogged = " UNLOGGED" if expression.args.get("unlogged") else "" +1186 return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}" +1187 +1188 def from_sql(self, expression: exp.From) -> str: +1189 expressions = self.expressions(expression, flat=True) +1190 return f"{self.seg('FROM')} {expressions}" +1191 +1192 def group_sql(self, expression: exp.Group) -> str: +1193 group_by = self.op_expressions("GROUP BY", expression) +1194 grouping_sets = self.expressions(expression, key="grouping_sets", indent=False) +1195 grouping_sets = ( +1196 f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else "" +1197 ) +1198 +1199 cube = expression.args.get("cube", []) +1200 if seq_get(cube, 0) is True: +1201 return f"{group_by}{self.seg('WITH CUBE')}" +1202 else: +1203 cube_sql = self.expressions(expression, key="cube", indent=False) +1204 cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else "" +1205 +1206 rollup = expression.args.get("rollup", []) +1207 if seq_get(rollup, 0) is True: +1208 return f"{group_by}{self.seg('WITH ROLLUP')}" +1209 else: +1210 rollup_sql = self.expressions(expression, key="rollup", indent=False) +1211 rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else "" 1212 -1213 if expression.args.get("expressions") and groupings: -1214 group_by = f"{group_by}," -1215 -1216 return f"{group_by}{groupings}" +1213 groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",") +1214 +1215 if expression.args.get("expressions") and groupings: +1216 group_by = f"{group_by}," 1217 -1218 def having_sql(self, expression: exp.Having) -> str: -1219 this = self.indent(self.sql(expression, "this")) -1220 return f"{self.seg('HAVING')}{self.sep()}{this}" -1221 -1222 def join_sql(self, expression: exp.Join) -> str: -1223 op_sql = self.seg( -1224 " ".join( -1225 op -1226 for op in ( -1227 "NATURAL" if expression.args.get("natural") else None, -1228 expression.side, -1229 expression.kind, -1230 expression.hint if self.JOIN_HINTS else None, -1231 "JOIN", -1232 ) -1233 if op -1234 ) -1235 ) -1236 on_sql = self.sql(expression, "on") -1237 using = expression.args.get("using") -1238 -1239 if not on_sql and using: -1240 on_sql = csv(*(self.sql(column) for column in using)) -1241 -1242 if on_sql: -1243 on_sql = self.indent(on_sql, skip_first=True) -1244 space = self.seg(" " * self.pad) if self.pretty else " " -1245 if using: -1246 on_sql = f"{space}USING ({on_sql})" -1247 else: -1248 on_sql = f"{space}ON {on_sql}" -1249 -1250 expression_sql = self.sql(expression, "expression") -1251 this_sql = self.sql(expression, "this") -1252 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" -1253 -1254 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: -1255 args = self.expressions(expression, flat=True) -1256 args = f"({args})" if len(args.split(",")) > 1 else args -1257 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" -1258 -1259 def lateral_sql(self, expression: exp.Lateral) -> str: -1260 this = self.sql(expression, "this") -1261 -1262 if isinstance(expression.this, exp.Subquery): -1263 return f"LATERAL {this}" -1264 -1265 if expression.args.get("view"): -1266 alias = expression.args["alias"] -1267 columns = self.expressions(alias, key="columns", flat=True) -1268 table = f" {alias.name}" if alias.name else "" -1269 columns = f" AS {columns}" if columns else "" -1270 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") -1271 return f"{op_sql}{self.sep()}{this}{table}{columns}" -1272 -1273 alias = self.sql(expression, "alias") -1274 alias = f" AS {alias}" if alias else "" -1275 return f"LATERAL {this}{alias}" -1276 -1277 def limit_sql(self, expression: exp.Limit) -> str: -1278 this = self.sql(expression, "this") -1279 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" -1280 -1281 def offset_sql(self, expression: exp.Offset) -> str: -1282 this = self.sql(expression, "this") -1283 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" -1284 -1285 def setitem_sql(self, expression: exp.SetItem) -> str: -1286 kind = self.sql(expression, "kind") -1287 kind = f"{kind} " if kind else "" -1288 this = self.sql(expression, "this") -1289 expressions = self.expressions(expression) -1290 collate = self.sql(expression, "collate") -1291 collate = f" COLLATE {collate}" if collate else "" -1292 global_ = "GLOBAL " if expression.args.get("global") else "" -1293 return f"{global_}{kind}{this}{expressions}{collate}" -1294 -1295 def set_sql(self, expression: exp.Set) -> str: -1296 expressions = ( -1297 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" -1298 ) -1299 return f"SET{expressions}" -1300 -1301 def pragma_sql(self, expression: exp.Pragma) -> str: -1302 return f"PRAGMA {self.sql(expression, 'this')}" -1303 -1304 def lock_sql(self, expression: exp.Lock) -> str: -1305 if self.LOCKING_READS_SUPPORTED: -1306 lock_type = "UPDATE" if expression.args["update"] else "SHARE" -1307 return self.seg(f"FOR {lock_type}") -1308 -1309 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") -1310 return "" -1311 -1312 def literal_sql(self, expression: exp.Literal) -> str: -1313 text = expression.this or "" -1314 if expression.is_string: -1315 text = text.replace(self.quote_end, self._escaped_quote_end) -1316 if self.pretty: -1317 text = text.replace("\n", self.SENTINEL_LINE_BREAK) -1318 text = f"{self.quote_start}{text}{self.quote_end}" -1319 return text -1320 -1321 def loaddata_sql(self, expression: exp.LoadData) -> str: -1322 local = " LOCAL" if expression.args.get("local") else "" -1323 inpath = f" INPATH {self.sql(expression, 'inpath')}" -1324 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" -1325 this = f" INTO TABLE {self.sql(expression, 'this')}" -1326 partition = self.sql(expression, "partition") -1327 partition = f" {partition}" if partition else "" -1328 input_format = self.sql(expression, "input_format") -1329 input_format = f" INPUTFORMAT {input_format}" if input_format else "" -1330 serde = self.sql(expression, "serde") -1331 serde = f" SERDE {serde}" if serde else "" -1332 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" -1333 -1334 def null_sql(self, *_) -> str: -1335 return "NULL" -1336 -1337 def boolean_sql(self, expression: exp.Boolean) -> str: -1338 return "TRUE" if expression.this else "FALSE" -1339 -1340 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: -1341 this = self.sql(expression, "this") -1342 this = f"{this} " if this else this -1343 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore -1344 -1345 def cluster_sql(self, expression: exp.Cluster) -> str: -1346 return self.op_expressions("CLUSTER BY", expression) -1347 -1348 def distribute_sql(self, expression: exp.Distribute) -> str: -1349 return self.op_expressions("DISTRIBUTE BY", expression) -1350 -1351 def sort_sql(self, expression: exp.Sort) -> str: -1352 return self.op_expressions("SORT BY", expression) -1353 -1354 def ordered_sql(self, expression: exp.Ordered) -> str: -1355 desc = expression.args.get("desc") -1356 asc = not desc -1357 -1358 nulls_first = expression.args.get("nulls_first") -1359 nulls_last = not nulls_first -1360 nulls_are_large = self.null_ordering == "nulls_are_large" -1361 nulls_are_small = self.null_ordering == "nulls_are_small" -1362 nulls_are_last = self.null_ordering == "nulls_are_last" -1363 -1364 sort_order = " DESC" if desc else "" -1365 nulls_sort_change = "" -1366 if nulls_first and ( -1367 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last -1368 ): -1369 nulls_sort_change = " NULLS FIRST" -1370 elif ( -1371 nulls_last -1372 and ((asc and nulls_are_small) or (desc and nulls_are_large)) -1373 and not nulls_are_last -1374 ): -1375 nulls_sort_change = " NULLS LAST" -1376 -1377 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: -1378 self.unsupported( -1379 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" -1380 ) -1381 nulls_sort_change = "" -1382 -1383 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1218 return f"{group_by}{groupings}" +1219 +1220 def having_sql(self, expression: exp.Having) -> str: +1221 this = self.indent(self.sql(expression, "this")) +1222 return f"{self.seg('HAVING')}{self.sep()}{this}" +1223 +1224 def join_sql(self, expression: exp.Join) -> str: +1225 op_sql = self.seg( +1226 " ".join( +1227 op +1228 for op in ( +1229 "NATURAL" if expression.args.get("natural") else None, +1230 expression.side, +1231 expression.kind, +1232 expression.hint if self.JOIN_HINTS else None, +1233 "JOIN", +1234 ) +1235 if op +1236 ) +1237 ) +1238 on_sql = self.sql(expression, "on") +1239 using = expression.args.get("using") +1240 +1241 if not on_sql and using: +1242 on_sql = csv(*(self.sql(column) for column in using)) +1243 +1244 if on_sql: +1245 on_sql = self.indent(on_sql, skip_first=True) +1246 space = self.seg(" " * self.pad) if self.pretty else " " +1247 if using: +1248 on_sql = f"{space}USING ({on_sql})" +1249 else: +1250 on_sql = f"{space}ON {on_sql}" +1251 +1252 expression_sql = self.sql(expression, "expression") +1253 this_sql = self.sql(expression, "this") +1254 return f"{expression_sql}{op_sql} {this_sql}{on_sql}" +1255 +1256 def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str: +1257 args = self.expressions(expression, flat=True) +1258 args = f"({args})" if len(args.split(",")) > 1 else args +1259 return f"{args} {arrow_sep} {self.sql(expression, 'this')}" +1260 +1261 def lateral_sql(self, expression: exp.Lateral) -> str: +1262 this = self.sql(expression, "this") +1263 +1264 if isinstance(expression.this, exp.Subquery): +1265 return f"LATERAL {this}" +1266 +1267 if expression.args.get("view"): +1268 alias = expression.args["alias"] +1269 columns = self.expressions(alias, key="columns", flat=True) +1270 table = f" {alias.name}" if alias.name else "" +1271 columns = f" AS {columns}" if columns else "" +1272 op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}") +1273 return f"{op_sql}{self.sep()}{this}{table}{columns}" +1274 +1275 alias = self.sql(expression, "alias") +1276 alias = f" AS {alias}" if alias else "" +1277 return f"LATERAL {this}{alias}" +1278 +1279 def limit_sql(self, expression: exp.Limit) -> str: +1280 this = self.sql(expression, "this") +1281 return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}" +1282 +1283 def offset_sql(self, expression: exp.Offset) -> str: +1284 this = self.sql(expression, "this") +1285 return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}" +1286 +1287 def setitem_sql(self, expression: exp.SetItem) -> str: +1288 kind = self.sql(expression, "kind") +1289 kind = f"{kind} " if kind else "" +1290 this = self.sql(expression, "this") +1291 expressions = self.expressions(expression) +1292 collate = self.sql(expression, "collate") +1293 collate = f" COLLATE {collate}" if collate else "" +1294 global_ = "GLOBAL " if expression.args.get("global") else "" +1295 return f"{global_}{kind}{this}{expressions}{collate}" +1296 +1297 def set_sql(self, expression: exp.Set) -> str: +1298 expressions = ( +1299 f" {self.expressions(expression, flat=True)}" if expression.expressions else "" +1300 ) +1301 return f"SET{expressions}" +1302 +1303 def pragma_sql(self, expression: exp.Pragma) -> str: +1304 return f"PRAGMA {self.sql(expression, 'this')}" +1305 +1306 def lock_sql(self, expression: exp.Lock) -> str: +1307 if self.LOCKING_READS_SUPPORTED: +1308 lock_type = "UPDATE" if expression.args["update"] else "SHARE" +1309 return self.seg(f"FOR {lock_type}") +1310 +1311 self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported") +1312 return "" +1313 +1314 def literal_sql(self, expression: exp.Literal) -> str: +1315 text = expression.this or "" +1316 if expression.is_string: +1317 text = text.replace(self.quote_end, self._escaped_quote_end) +1318 if self.pretty: +1319 text = text.replace("\n", self.SENTINEL_LINE_BREAK) +1320 text = f"{self.quote_start}{text}{self.quote_end}" +1321 return text +1322 +1323 def loaddata_sql(self, expression: exp.LoadData) -> str: +1324 local = " LOCAL" if expression.args.get("local") else "" +1325 inpath = f" INPATH {self.sql(expression, 'inpath')}" +1326 overwrite = " OVERWRITE" if expression.args.get("overwrite") else "" +1327 this = f" INTO TABLE {self.sql(expression, 'this')}" +1328 partition = self.sql(expression, "partition") +1329 partition = f" {partition}" if partition else "" +1330 input_format = self.sql(expression, "input_format") +1331 input_format = f" INPUTFORMAT {input_format}" if input_format else "" +1332 serde = self.sql(expression, "serde") +1333 serde = f" SERDE {serde}" if serde else "" +1334 return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}" +1335 +1336 def null_sql(self, *_) -> str: +1337 return "NULL" +1338 +1339 def boolean_sql(self, expression: exp.Boolean) -> str: +1340 return "TRUE" if expression.this else "FALSE" +1341 +1342 def order_sql(self, expression: exp.Order, flat: bool = False) -> str: +1343 this = self.sql(expression, "this") +1344 this = f"{this} " if this else this +1345 return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat) # type: ignore +1346 +1347 def cluster_sql(self, expression: exp.Cluster) -> str: +1348 return self.op_expressions("CLUSTER BY", expression) +1349 +1350 def distribute_sql(self, expression: exp.Distribute) -> str: +1351 return self.op_expressions("DISTRIBUTE BY", expression) +1352 +1353 def sort_sql(self, expression: exp.Sort) -> str: +1354 return self.op_expressions("SORT BY", expression) +1355 +1356 def ordered_sql(self, expression: exp.Ordered) -> str: +1357 desc = expression.args.get("desc") +1358 asc = not desc +1359 +1360 nulls_first = expression.args.get("nulls_first") +1361 nulls_last = not nulls_first +1362 nulls_are_large = self.null_ordering == "nulls_are_large" +1363 nulls_are_small = self.null_ordering == "nulls_are_small" +1364 nulls_are_last = self.null_ordering == "nulls_are_last" +1365 +1366 sort_order = " DESC" if desc else "" +1367 nulls_sort_change = "" +1368 if nulls_first and ( +1369 (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last +1370 ): +1371 nulls_sort_change = " NULLS FIRST" +1372 elif ( +1373 nulls_last +1374 and ((asc and nulls_are_small) or (desc and nulls_are_large)) +1375 and not nulls_are_last +1376 ): +1377 nulls_sort_change = " NULLS LAST" +1378 +1379 if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED: +1380 self.unsupported( +1381 "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect" +1382 ) +1383 nulls_sort_change = "" 1384 -1385 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: -1386 partition = self.partition_by_sql(expression) -1387 order = self.sql(expression, "order") -1388 measures = self.expressions(expression, key="measures") -1389 measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else "" -1390 rows = self.sql(expression, "rows") -1391 rows = self.seg(rows) if rows else "" -1392 after = self.sql(expression, "after") -1393 after = self.seg(after) if after else "" -1394 pattern = self.sql(expression, "pattern") -1395 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" -1396 definition_sqls = [ -1397 f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}" -1398 for definition in expression.args.get("define", []) -1399 ] -1400 definitions = self.expressions(sqls=definition_sqls) -1401 define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else "" -1402 body = "".join( -1403 ( -1404 partition, -1405 order, -1406 measures, -1407 rows, -1408 after, -1409 pattern, -1410 define, -1411 ) -1412 ) -1413 alias = self.sql(expression, "alias") -1414 alias = f" {alias}" if alias else "" -1415 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}" -1416 -1417 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: -1418 limit = expression.args.get("limit") -1419 -1420 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): -1421 limit = exp.Limit(expression=limit.args.get("count")) -1422 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): -1423 limit = exp.Fetch(direction="FIRST", count=limit.expression) -1424 -1425 fetch = isinstance(limit, exp.Fetch) +1385 return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}" +1386 +1387 def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str: +1388 partition = self.partition_by_sql(expression) +1389 order = self.sql(expression, "order") +1390 measures = self.expressions(expression, key="measures") +1391 measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else "" +1392 rows = self.sql(expression, "rows") +1393 rows = self.seg(rows) if rows else "" +1394 after = self.sql(expression, "after") +1395 after = self.seg(after) if after else "" +1396 pattern = self.sql(expression, "pattern") +1397 pattern = self.seg(f"PATTERN ({pattern})") if pattern else "" +1398 definition_sqls = [ +1399 f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}" +1400 for definition in expression.args.get("define", []) +1401 ] +1402 definitions = self.expressions(sqls=definition_sqls) +1403 define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else "" +1404 body = "".join( +1405 ( +1406 partition, +1407 order, +1408 measures, +1409 rows, +1410 after, +1411 pattern, +1412 define, +1413 ) +1414 ) +1415 alias = self.sql(expression, "alias") +1416 alias = f" {alias}" if alias else "" +1417 return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}" +1418 +1419 def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str: +1420 limit = expression.args.get("limit") +1421 +1422 if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch): +1423 limit = exp.Limit(expression=limit.args.get("count")) +1424 elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit): +1425 limit = exp.Fetch(direction="FIRST", count=limit.expression) 1426 -1427 return csv( -1428 *sqls, -1429 *[self.sql(sql) for sql in expression.args.get("joins") or []], -1430 self.sql(expression, "match"), -1431 *[self.sql(sql) for sql in expression.args.get("laterals") or []], -1432 self.sql(expression, "where"), -1433 self.sql(expression, "group"), -1434 self.sql(expression, "having"), -1435 self.sql(expression, "qualify"), -1436 self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True) -1437 if expression.args.get("windows") -1438 else "", -1439 self.sql(expression, "distribute"), -1440 self.sql(expression, "sort"), -1441 self.sql(expression, "cluster"), -1442 self.sql(expression, "order"), -1443 self.sql(expression, "offset") if fetch else self.sql(limit), -1444 self.sql(limit) if fetch else self.sql(expression, "offset"), -1445 self.sql(expression, "lock"), -1446 self.sql(expression, "sample"), -1447 sep="", -1448 ) -1449 -1450 def select_sql(self, expression: exp.Select) -> str: -1451 kind = expression.args.get("kind") -1452 kind = f" AS {kind}" if kind else "" -1453 hint = self.sql(expression, "hint") -1454 distinct = self.sql(expression, "distinct") -1455 distinct = f" {distinct}" if distinct else "" -1456 expressions = self.expressions(expression) -1457 expressions = f"{self.sep()}{expressions}" if expressions else expressions -1458 sql = self.query_modifiers( -1459 expression, -1460 f"SELECT{kind}{hint}{distinct}{expressions}", -1461 self.sql(expression, "into", comment=False), -1462 self.sql(expression, "from", comment=False), -1463 ) -1464 return self.prepend_ctes(expression, sql) -1465 -1466 def schema_sql(self, expression: exp.Schema) -> str: -1467 this = self.sql(expression, "this") -1468 this = f"{this} " if this else "" -1469 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" -1470 return f"{this}{sql}" -1471 -1472 def star_sql(self, expression: exp.Star) -> str: -1473 except_ = self.expressions(expression, key="except", flat=True) -1474 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" -1475 replace = self.expressions(expression, key="replace", flat=True) -1476 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" -1477 return f"*{except_}{replace}" -1478 -1479 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: -1480 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" -1481 -1482 def parameter_sql(self, expression: exp.Parameter) -> str: -1483 this = self.sql(expression, "this") -1484 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" -1485 return f"{self.PARAMETER_TOKEN}{this}" -1486 -1487 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: -1488 this = self.sql(expression, "this") -1489 kind = expression.text("kind") -1490 if kind: -1491 kind = f"{kind}." -1492 return f"@@{kind}{this}" -1493 -1494 def placeholder_sql(self, expression: exp.Placeholder) -> str: -1495 return f":{expression.name}" if expression.name else "?" -1496 -1497 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: -1498 alias = self.sql(expression, "alias") -1499 alias = f"{sep}{alias}" if alias else "" -1500 -1501 sql = self.query_modifiers( -1502 expression, -1503 self.wrap(expression), -1504 alias, -1505 self.expressions(expression, key="pivots", sep=" "), -1506 ) -1507 -1508 return self.prepend_ctes(expression, sql) +1427 fetch = isinstance(limit, exp.Fetch) +1428 +1429 return csv( +1430 *sqls, +1431 *[self.sql(sql) for sql in expression.args.get("joins") or []], +1432 self.sql(expression, "match"), +1433 *[self.sql(sql) for sql in expression.args.get("laterals") or []], +1434 self.sql(expression, "where"), +1435 self.sql(expression, "group"), +1436 self.sql(expression, "having"), +1437 self.sql(expression, "qualify"), +1438 self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True) +1439 if expression.args.get("windows") +1440 else "", +1441 self.sql(expression, "distribute"), +1442 self.sql(expression, "sort"), +1443 self.sql(expression, "cluster"), +1444 self.sql(expression, "order"), +1445 self.sql(expression, "offset") if fetch else self.sql(limit), +1446 self.sql(limit) if fetch else self.sql(expression, "offset"), +1447 self.sql(expression, "lock"), +1448 self.sql(expression, "sample"), +1449 sep="", +1450 ) +1451 +1452 def select_sql(self, expression: exp.Select) -> str: +1453 kind = expression.args.get("kind") +1454 kind = f" AS {kind}" if kind else "" +1455 hint = self.sql(expression, "hint") +1456 distinct = self.sql(expression, "distinct") +1457 distinct = f" {distinct}" if distinct else "" +1458 expressions = self.expressions(expression) +1459 expressions = f"{self.sep()}{expressions}" if expressions else expressions +1460 sql = self.query_modifiers( +1461 expression, +1462 f"SELECT{kind}{hint}{distinct}{expressions}", +1463 self.sql(expression, "into", comment=False), +1464 self.sql(expression, "from", comment=False), +1465 ) +1466 return self.prepend_ctes(expression, sql) +1467 +1468 def schema_sql(self, expression: exp.Schema) -> str: +1469 this = self.sql(expression, "this") +1470 this = f"{this} " if this else "" +1471 sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}" +1472 return f"{this}{sql}" +1473 +1474 def star_sql(self, expression: exp.Star) -> str: +1475 except_ = self.expressions(expression, key="except", flat=True) +1476 except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else "" +1477 replace = self.expressions(expression, key="replace", flat=True) +1478 replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" +1479 return f"*{except_}{replace}" +1480 +1481 def structkwarg_sql(self, expression: exp.StructKwarg) -> str: +1482 return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" +1483 +1484 def parameter_sql(self, expression: exp.Parameter) -> str: +1485 this = self.sql(expression, "this") +1486 this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" +1487 return f"{self.PARAMETER_TOKEN}{this}" +1488 +1489 def sessionparameter_sql(self, expression: exp.SessionParameter) -> str: +1490 this = self.sql(expression, "this") +1491 kind = expression.text("kind") +1492 if kind: +1493 kind = f"{kind}." +1494 return f"@@{kind}{this}" +1495 +1496 def placeholder_sql(self, expression: exp.Placeholder) -> str: +1497 return f":{expression.name}" if expression.name else "?" +1498 +1499 def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str: +1500 alias = self.sql(expression, "alias") +1501 alias = f"{sep}{alias}" if alias else "" +1502 +1503 sql = self.query_modifiers( +1504 expression, +1505 self.wrap(expression), +1506 alias, +1507 self.expressions(expression, key="pivots", sep=" "), +1508 ) 1509 -1510 def qualify_sql(self, expression: exp.Qualify) -> str: -1511 this = self.indent(self.sql(expression, "this")) -1512 return f"{self.seg('QUALIFY')}{self.sep()}{this}" -1513 -1514 def union_sql(self, expression: exp.Union) -> str: -1515 return self.prepend_ctes( -1516 expression, -1517 self.set_operation(expression, self.union_op(expression)), -1518 ) -1519 -1520 def union_op(self, expression: exp.Union) -> str: -1521 kind = " DISTINCT" if self.EXPLICIT_UNION else "" -1522 kind = kind if expression.args.get("distinct") else " ALL" -1523 return f"UNION{kind}" -1524 -1525 def unnest_sql(self, expression: exp.Unnest) -> str: -1526 args = self.expressions(expression, flat=True) -1527 alias = expression.args.get("alias") -1528 if alias and self.unnest_column_only: -1529 columns = alias.columns -1530 alias = self.sql(columns[0]) if columns else "" -1531 else: -1532 alias = self.sql(expression, "alias") -1533 alias = f" AS {alias}" if alias else alias -1534 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" -1535 offset = expression.args.get("offset") -1536 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" -1537 return f"UNNEST({args}){ordinality}{alias}{offset}" -1538 -1539 def where_sql(self, expression: exp.Where) -> str: -1540 this = self.indent(self.sql(expression, "this")) -1541 return f"{self.seg('WHERE')}{self.sep()}{this}" -1542 -1543 def window_sql(self, expression: exp.Window) -> str: -1544 this = self.sql(expression, "this") -1545 -1546 partition = self.partition_by_sql(expression) +1510 return self.prepend_ctes(expression, sql) +1511 +1512 def qualify_sql(self, expression: exp.Qualify) -> str: +1513 this = self.indent(self.sql(expression, "this")) +1514 return f"{self.seg('QUALIFY')}{self.sep()}{this}" +1515 +1516 def union_sql(self, expression: exp.Union) -> str: +1517 return self.prepend_ctes( +1518 expression, +1519 self.set_operation(expression, self.union_op(expression)), +1520 ) +1521 +1522 def union_op(self, expression: exp.Union) -> str: +1523 kind = " DISTINCT" if self.EXPLICIT_UNION else "" +1524 kind = kind if expression.args.get("distinct") else " ALL" +1525 return f"UNION{kind}" +1526 +1527 def unnest_sql(self, expression: exp.Unnest) -> str: +1528 args = self.expressions(expression, flat=True) +1529 alias = expression.args.get("alias") +1530 if alias and self.unnest_column_only: +1531 columns = alias.columns +1532 alias = self.sql(columns[0]) if columns else "" +1533 else: +1534 alias = self.sql(expression, "alias") +1535 alias = f" AS {alias}" if alias else alias +1536 ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else "" +1537 offset = expression.args.get("offset") +1538 offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else "" +1539 return f"UNNEST({args}){ordinality}{alias}{offset}" +1540 +1541 def where_sql(self, expression: exp.Where) -> str: +1542 this = self.indent(self.sql(expression, "this")) +1543 return f"{self.seg('WHERE')}{self.sep()}{this}" +1544 +1545 def window_sql(self, expression: exp.Window) -> str: +1546 this = self.sql(expression, "this") 1547 -1548 order = expression.args.get("order") -1549 order_sql = self.order_sql(order, flat=True) if order else "" -1550 -1551 partition_sql = partition + " " if partition and order else partition +1548 partition = self.partition_by_sql(expression) +1549 +1550 order = expression.args.get("order") +1551 order_sql = self.order_sql(order, flat=True) if order else "" 1552 -1553 spec = expression.args.get("spec") -1554 spec_sql = " " + self.window_spec_sql(spec) if spec else "" -1555 -1556 alias = self.sql(expression, "alias") -1557 this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}" -1558 -1559 if not partition and not order and not spec and alias: -1560 return f"{this} {alias}" +1553 partition_sql = partition + " " if partition and order else partition +1554 +1555 spec = expression.args.get("spec") +1556 spec_sql = " " + self.windowspec_sql(spec) if spec else "" +1557 +1558 alias = self.sql(expression, "alias") +1559 over = self.sql(expression, "over") or "OVER" +1560 this = f"{this} {'AS' if expression.arg_key == 'windows' else over}" 1561 -1562 window_args = alias + partition_sql + order_sql + spec_sql -1563 -1564 return f"{this} ({window_args.strip()})" -1565 -1566 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: -1567 partition = self.expressions(expression, key="partition_by", flat=True) -1568 return f"PARTITION BY {partition}" if partition else "" +1562 first = expression.args.get("first") +1563 if first is not None: +1564 first = " FIRST " if first else " LAST " +1565 first = first or "" +1566 +1567 if not partition and not order and not spec and alias: +1568 return f"{this} {alias}" 1569 -1570 def window_spec_sql(self, expression: exp.WindowSpec) -> str: -1571 kind = self.sql(expression, "kind") -1572 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") -1573 end = ( -1574 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") -1575 or "CURRENT ROW" -1576 ) -1577 return f"{kind} BETWEEN {start} AND {end}" -1578 -1579 def withingroup_sql(self, expression: exp.WithinGroup) -> str: -1580 this = self.sql(expression, "this") -1581 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space -1582 return f"{this} WITHIN GROUP ({expression_sql})" -1583 -1584 def between_sql(self, expression: exp.Between) -> str: -1585 this = self.sql(expression, "this") -1586 low = self.sql(expression, "low") -1587 high = self.sql(expression, "high") -1588 return f"{this} BETWEEN {low} AND {high}" -1589 -1590 def bracket_sql(self, expression: exp.Bracket) -> str: -1591 expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset) -1592 expressions_sql = ", ".join(self.sql(e) for e in expressions) -1593 -1594 return f"{self.sql(expression, 'this')}[{expressions_sql}]" -1595 -1596 def all_sql(self, expression: exp.All) -> str: -1597 return f"ALL {self.wrap(expression)}" -1598 -1599 def any_sql(self, expression: exp.Any) -> str: -1600 this = self.sql(expression, "this") -1601 if isinstance(expression.this, exp.Subqueryable): -1602 this = self.wrap(this) -1603 return f"ANY {this}" -1604 -1605 def exists_sql(self, expression: exp.Exists) -> str: -1606 return f"EXISTS{self.wrap(expression)}" -1607 -1608 def case_sql(self, expression: exp.Case) -> str: -1609 this = self.sql(expression, "this") -1610 statements = [f"CASE {this}" if this else "CASE"] -1611 -1612 for e in expression.args["ifs"]: -1613 statements.append(f"WHEN {self.sql(e, 'this')}") -1614 statements.append(f"THEN {self.sql(e, 'true')}") +1570 window_args = alias + first + partition_sql + order_sql + spec_sql +1571 +1572 return f"{this} ({window_args.strip()})" +1573 +1574 def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str: +1575 partition = self.expressions(expression, key="partition_by", flat=True) +1576 return f"PARTITION BY {partition}" if partition else "" +1577 +1578 def windowspec_sql(self, expression: exp.WindowSpec) -> str: +1579 kind = self.sql(expression, "kind") +1580 start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ") +1581 end = ( +1582 csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ") +1583 or "CURRENT ROW" +1584 ) +1585 return f"{kind} BETWEEN {start} AND {end}" +1586 +1587 def withingroup_sql(self, expression: exp.WithinGroup) -> str: +1588 this = self.sql(expression, "this") +1589 expression_sql = self.sql(expression, "expression")[1:] # order has a leading space +1590 return f"{this} WITHIN GROUP ({expression_sql})" +1591 +1592 def between_sql(self, expression: exp.Between) -> str: +1593 this = self.sql(expression, "this") +1594 low = self.sql(expression, "low") +1595 high = self.sql(expression, "high") +1596 return f"{this} BETWEEN {low} AND {high}" +1597 +1598 def bracket_sql(self, expression: exp.Bracket) -> str: +1599 expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset) +1600 expressions_sql = ", ".join(self.sql(e) for e in expressions) +1601 +1602 return f"{self.sql(expression, 'this')}[{expressions_sql}]" +1603 +1604 def all_sql(self, expression: exp.All) -> str: +1605 return f"ALL {self.wrap(expression)}" +1606 +1607 def any_sql(self, expression: exp.Any) -> str: +1608 this = self.sql(expression, "this") +1609 if isinstance(expression.this, exp.Subqueryable): +1610 this = self.wrap(this) +1611 return f"ANY {this}" +1612 +1613 def exists_sql(self, expression: exp.Exists) -> str: +1614 return f"EXISTS{self.wrap(expression)}" 1615 -1616 default = self.sql(expression, "default") -1617 -1618 if default: -1619 statements.append(f"ELSE {default}") -1620 -1621 statements.append("END") -1622 -1623 if self.pretty and self.text_width(statements) > self._max_text_width: -1624 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1616 def case_sql(self, expression: exp.Case) -> str: +1617 this = self.sql(expression, "this") +1618 statements = [f"CASE {this}" if this else "CASE"] +1619 +1620 for e in expression.args["ifs"]: +1621 statements.append(f"WHEN {self.sql(e, 'this')}") +1622 statements.append(f"THEN {self.sql(e, 'true')}") +1623 +1624 default = self.sql(expression, "default") 1625 -1626 return " ".join(statements) -1627 -1628 def constraint_sql(self, expression: exp.Constraint) -> str: -1629 this = self.sql(expression, "this") -1630 expressions = self.expressions(expression, flat=True) -1631 return f"CONSTRAINT {this} {expressions}" -1632 -1633 def extract_sql(self, expression: exp.Extract) -> str: -1634 this = self.sql(expression, "this") -1635 expression_sql = self.sql(expression, "expression") -1636 return f"EXTRACT({this} FROM {expression_sql})" -1637 -1638 def trim_sql(self, expression: exp.Trim) -> str: -1639 trim_type = self.sql(expression, "position") +1626 if default: +1627 statements.append(f"ELSE {default}") +1628 +1629 statements.append("END") +1630 +1631 if self.pretty and self.text_width(statements) > self._max_text_width: +1632 return self.indent("\n".join(statements), skip_first=True, skip_last=True) +1633 +1634 return " ".join(statements) +1635 +1636 def constraint_sql(self, expression: exp.Constraint) -> str: +1637 this = self.sql(expression, "this") +1638 expressions = self.expressions(expression, flat=True) +1639 return f"CONSTRAINT {this} {expressions}" 1640 -1641 if trim_type == "LEADING": -1642 return self.func("LTRIM", expression.this) -1643 elif trim_type == "TRAILING": -1644 return self.func("RTRIM", expression.this) -1645 else: -1646 return self.func("TRIM", expression.this, expression.expression) -1647 -1648 def concat_sql(self, expression: exp.Concat) -> str: -1649 if len(expression.expressions) == 1: -1650 return self.sql(expression.expressions[0]) -1651 return self.function_fallback_sql(expression) -1652 -1653 def check_sql(self, expression: exp.Check) -> str: -1654 this = self.sql(expression, key="this") -1655 return f"CHECK ({this})" -1656 -1657 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: -1658 expressions = self.expressions(expression, flat=True) -1659 reference = self.sql(expression, "reference") -1660 reference = f" {reference}" if reference else "" -1661 delete = self.sql(expression, "delete") -1662 delete = f" ON DELETE {delete}" if delete else "" -1663 update = self.sql(expression, "update") -1664 update = f" ON UPDATE {update}" if update else "" -1665 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" -1666 -1667 def primarykey_sql(self, expression: exp.ForeignKey) -> str: -1668 expressions = self.expressions(expression, flat=True) -1669 options = self.expressions(expression, key="options", flat=True, sep=" ") -1670 options = f" {options}" if options else "" -1671 return f"PRIMARY KEY ({expressions}){options}" -1672 -1673 def unique_sql(self, expression: exp.Unique) -> str: -1674 columns = self.expressions(expression, key="expressions") -1675 return f"UNIQUE ({columns})" -1676 -1677 def if_sql(self, expression: exp.If) -> str: -1678 return self.case_sql( -1679 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) -1680 ) -1681 -1682 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: -1683 modifier = expression.args.get("modifier") -1684 modifier = f" {modifier}" if modifier else "" -1685 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" -1686 -1687 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: -1688 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1641 def nextvaluefor_sql(self, expression: exp.NextValueFor) -> str: +1642 order = expression.args.get("order") +1643 order = f" OVER ({self.order_sql(order, flat=True)})" if order else "" +1644 return f"NEXT VALUE FOR {self.sql(expression, 'this')}{order}" +1645 +1646 def extract_sql(self, expression: exp.Extract) -> str: +1647 this = self.sql(expression, "this") +1648 expression_sql = self.sql(expression, "expression") +1649 return f"EXTRACT({this} FROM {expression_sql})" +1650 +1651 def trim_sql(self, expression: exp.Trim) -> str: +1652 trim_type = self.sql(expression, "position") +1653 +1654 if trim_type == "LEADING": +1655 return self.func("LTRIM", expression.this) +1656 elif trim_type == "TRAILING": +1657 return self.func("RTRIM", expression.this) +1658 else: +1659 return self.func("TRIM", expression.this, expression.expression) +1660 +1661 def concat_sql(self, expression: exp.Concat) -> str: +1662 if len(expression.expressions) == 1: +1663 return self.sql(expression.expressions[0]) +1664 return self.function_fallback_sql(expression) +1665 +1666 def check_sql(self, expression: exp.Check) -> str: +1667 this = self.sql(expression, key="this") +1668 return f"CHECK ({this})" +1669 +1670 def foreignkey_sql(self, expression: exp.ForeignKey) -> str: +1671 expressions = self.expressions(expression, flat=True) +1672 reference = self.sql(expression, "reference") +1673 reference = f" {reference}" if reference else "" +1674 delete = self.sql(expression, "delete") +1675 delete = f" ON DELETE {delete}" if delete else "" +1676 update = self.sql(expression, "update") +1677 update = f" ON UPDATE {update}" if update else "" +1678 return f"FOREIGN KEY ({expressions}){reference}{delete}{update}" +1679 +1680 def primarykey_sql(self, expression: exp.ForeignKey) -> str: +1681 expressions = self.expressions(expression, flat=True) +1682 options = self.expressions(expression, key="options", flat=True, sep=" ") +1683 options = f" {options}" if options else "" +1684 return f"PRIMARY KEY ({expressions}){options}" +1685 +1686 def unique_sql(self, expression: exp.Unique) -> str: +1687 columns = self.expressions(expression, key="expressions") +1688 return f"UNIQUE ({columns})" 1689 -1690 def jsonobject_sql(self, expression: exp.JSONObject) -> str: -1691 expressions = self.expressions(expression) -1692 null_handling = expression.args.get("null_handling") -1693 null_handling = f" {null_handling}" if null_handling else "" -1694 unique_keys = expression.args.get("unique_keys") -1695 if unique_keys is not None: -1696 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" -1697 else: -1698 unique_keys = "" -1699 return_type = self.sql(expression, "return_type") -1700 return_type = f" RETURNING {return_type}" if return_type else "" -1701 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" -1702 encoding = self.sql(expression, "encoding") -1703 encoding = f" ENCODING {encoding}" if encoding else "" -1704 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" -1705 -1706 def in_sql(self, expression: exp.In) -> str: -1707 query = expression.args.get("query") -1708 unnest = expression.args.get("unnest") -1709 field = expression.args.get("field") -1710 is_global = " GLOBAL" if expression.args.get("is_global") else "" -1711 -1712 if query: -1713 in_sql = self.wrap(query) -1714 elif unnest: -1715 in_sql = self.in_unnest_op(unnest) -1716 elif field: -1717 in_sql = self.sql(field) -1718 else: -1719 in_sql = f"({self.expressions(expression, flat=True)})" -1720 -1721 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" -1722 -1723 def in_unnest_op(self, unnest: exp.Unnest) -> str: -1724 return f"(SELECT {self.sql(unnest)})" -1725 -1726 def interval_sql(self, expression: exp.Interval) -> str: -1727 unit = self.sql(expression, "unit") -1728 if not self.INTERVAL_ALLOWS_PLURAL_FORM: -1729 unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit) -1730 unit = f" {unit}" if unit else "" -1731 -1732 if self.SINGLE_STRING_INTERVAL: -1733 this = expression.this.name if expression.this else "" -1734 return f"INTERVAL '{this}{unit}'" +1690 def if_sql(self, expression: exp.If) -> str: +1691 return self.case_sql( +1692 exp.Case(ifs=[expression.copy()], default=expression.args.get("false")) +1693 ) +1694 +1695 def matchagainst_sql(self, expression: exp.MatchAgainst) -> str: +1696 modifier = expression.args.get("modifier") +1697 modifier = f" {modifier}" if modifier else "" +1698 return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})" +1699 +1700 def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str: +1701 return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}" +1702 +1703 def jsonobject_sql(self, expression: exp.JSONObject) -> str: +1704 expressions = self.expressions(expression) +1705 null_handling = expression.args.get("null_handling") +1706 null_handling = f" {null_handling}" if null_handling else "" +1707 unique_keys = expression.args.get("unique_keys") +1708 if unique_keys is not None: +1709 unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS" +1710 else: +1711 unique_keys = "" +1712 return_type = self.sql(expression, "return_type") +1713 return_type = f" RETURNING {return_type}" if return_type else "" +1714 format_json = " FORMAT JSON" if expression.args.get("format_json") else "" +1715 encoding = self.sql(expression, "encoding") +1716 encoding = f" ENCODING {encoding}" if encoding else "" +1717 return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})" +1718 +1719 def in_sql(self, expression: exp.In) -> str: +1720 query = expression.args.get("query") +1721 unnest = expression.args.get("unnest") +1722 field = expression.args.get("field") +1723 is_global = " GLOBAL" if expression.args.get("is_global") else "" +1724 +1725 if query: +1726 in_sql = self.wrap(query) +1727 elif unnest: +1728 in_sql = self.in_unnest_op(unnest) +1729 elif field: +1730 in_sql = self.sql(field) +1731 else: +1732 in_sql = f"({self.expressions(expression, flat=True)})" +1733 +1734 return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}" 1735 -1736 this = self.sql(expression, "this") -1737 if this: -1738 unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES) -1739 this = f" {this}" if unwrapped else f" ({this})" -1740 -1741 return f"INTERVAL{this}{unit}" -1742 -1743 def return_sql(self, expression: exp.Return) -> str: -1744 return f"RETURN {self.sql(expression, 'this')}" -1745 -1746 def reference_sql(self, expression: exp.Reference) -> str: -1747 this = self.sql(expression, "this") -1748 expressions = self.expressions(expression, flat=True) -1749 expressions = f"({expressions})" if expressions else "" -1750 options = self.expressions(expression, key="options", flat=True, sep=" ") -1751 options = f" {options}" if options else "" -1752 return f"REFERENCES {this}{expressions}{options}" +1736 def in_unnest_op(self, unnest: exp.Unnest) -> str: +1737 return f"(SELECT {self.sql(unnest)})" +1738 +1739 def interval_sql(self, expression: exp.Interval) -> str: +1740 unit = self.sql(expression, "unit") +1741 if not self.INTERVAL_ALLOWS_PLURAL_FORM: +1742 unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit) +1743 unit = f" {unit}" if unit else "" +1744 +1745 if self.SINGLE_STRING_INTERVAL: +1746 this = expression.this.name if expression.this else "" +1747 return f"INTERVAL '{this}{unit}'" +1748 +1749 this = self.sql(expression, "this") +1750 if this: +1751 unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES) +1752 this = f" {this}" if unwrapped else f" ({this})" 1753 -1754 def anonymous_sql(self, expression: exp.Anonymous) -> str: -1755 return self.func(expression.name, *expression.expressions) -1756 -1757 def paren_sql(self, expression: exp.Paren) -> str: -1758 if isinstance(expression.unnest(), exp.Select): -1759 sql = self.wrap(expression) -1760 else: -1761 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") -1762 sql = f"({sql}{self.seg(')', sep='')}" -1763 -1764 return self.prepend_ctes(expression, sql) -1765 -1766 def neg_sql(self, expression: exp.Neg) -> str: -1767 # This makes sure we don't convert "- - 5" to "--5", which is a comment -1768 this_sql = self.sql(expression, "this") -1769 sep = " " if this_sql[0] == "-" else "" -1770 return f"-{sep}{this_sql}" -1771 -1772 def not_sql(self, expression: exp.Not) -> str: -1773 return f"NOT {self.sql(expression, 'this')}" -1774 -1775 def alias_sql(self, expression: exp.Alias) -> str: -1776 alias = self.sql(expression, "alias") -1777 alias = f" AS {alias}" if alias else "" -1778 return f"{self.sql(expression, 'this')}{alias}" -1779 -1780 def aliases_sql(self, expression: exp.Aliases) -> str: -1781 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" -1782 -1783 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: -1784 this = self.sql(expression, "this") -1785 zone = self.sql(expression, "zone") -1786 return f"{this} AT TIME ZONE {zone}" +1754 return f"INTERVAL{this}{unit}" +1755 +1756 def return_sql(self, expression: exp.Return) -> str: +1757 return f"RETURN {self.sql(expression, 'this')}" +1758 +1759 def reference_sql(self, expression: exp.Reference) -> str: +1760 this = self.sql(expression, "this") +1761 expressions = self.expressions(expression, flat=True) +1762 expressions = f"({expressions})" if expressions else "" +1763 options = self.expressions(expression, key="options", flat=True, sep=" ") +1764 options = f" {options}" if options else "" +1765 return f"REFERENCES {this}{expressions}{options}" +1766 +1767 def anonymous_sql(self, expression: exp.Anonymous) -> str: +1768 return self.func(expression.name, *expression.expressions) +1769 +1770 def paren_sql(self, expression: exp.Paren) -> str: +1771 if isinstance(expression.unnest(), exp.Select): +1772 sql = self.wrap(expression) +1773 else: +1774 sql = self.seg(self.indent(self.sql(expression, "this")), sep="") +1775 sql = f"({sql}{self.seg(')', sep='')}" +1776 +1777 return self.prepend_ctes(expression, sql) +1778 +1779 def neg_sql(self, expression: exp.Neg) -> str: +1780 # This makes sure we don't convert "- - 5" to "--5", which is a comment +1781 this_sql = self.sql(expression, "this") +1782 sep = " " if this_sql[0] == "-" else "" +1783 return f"-{sep}{this_sql}" +1784 +1785 def not_sql(self, expression: exp.Not) -> str: +1786 return f"NOT {self.sql(expression, 'this')}" 1787 -1788 def add_sql(self, expression: exp.Add) -> str: -1789 return self.binary(expression, "+") -1790 -1791 def and_sql(self, expression: exp.And) -> str: -1792 return self.connector_sql(expression, "AND") -1793 -1794 def connector_sql(self, expression: exp.Connector, op: str) -> str: -1795 if not self.pretty: -1796 return self.binary(expression, op) -1797 -1798 sqls = tuple( -1799 self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e) -1800 for i, e in enumerate(expression.flatten(unnest=False)) -1801 ) -1802 -1803 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " -1804 return f"{sep}{op} ".join(sqls) -1805 -1806 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: -1807 return self.binary(expression, "&") -1808 -1809 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: -1810 return self.binary(expression, "<<") -1811 -1812 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: -1813 return f"~{self.sql(expression, 'this')}" -1814 -1815 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: -1816 return self.binary(expression, "|") -1817 -1818 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: -1819 return self.binary(expression, ">>") -1820 -1821 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: -1822 return self.binary(expression, "^") -1823 -1824 def cast_sql(self, expression: exp.Cast) -> str: -1825 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -1826 -1827 def currentdate_sql(self, expression: exp.CurrentDate) -> str: -1828 zone = self.sql(expression, "this") -1829 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" +1788 def alias_sql(self, expression: exp.Alias) -> str: +1789 alias = self.sql(expression, "alias") +1790 alias = f" AS {alias}" if alias else "" +1791 return f"{self.sql(expression, 'this')}{alias}" +1792 +1793 def aliases_sql(self, expression: exp.Aliases) -> str: +1794 return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})" +1795 +1796 def attimezone_sql(self, expression: exp.AtTimeZone) -> str: +1797 this = self.sql(expression, "this") +1798 zone = self.sql(expression, "zone") +1799 return f"{this} AT TIME ZONE {zone}" +1800 +1801 def add_sql(self, expression: exp.Add) -> str: +1802 return self.binary(expression, "+") +1803 +1804 def and_sql(self, expression: exp.And) -> str: +1805 return self.connector_sql(expression, "AND") +1806 +1807 def connector_sql(self, expression: exp.Connector, op: str) -> str: +1808 if not self.pretty: +1809 return self.binary(expression, op) +1810 +1811 sqls = tuple( +1812 self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e) +1813 for i, e in enumerate(expression.flatten(unnest=False)) +1814 ) +1815 +1816 sep = "\n" if self.text_width(sqls) > self._max_text_width else " " +1817 return f"{sep}{op} ".join(sqls) +1818 +1819 def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str: +1820 return self.binary(expression, "&") +1821 +1822 def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str: +1823 return self.binary(expression, "<<") +1824 +1825 def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str: +1826 return f"~{self.sql(expression, 'this')}" +1827 +1828 def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str: +1829 return self.binary(expression, "|") 1830 -1831 def collate_sql(self, expression: exp.Collate) -> str: -1832 return self.binary(expression, "COLLATE") +1831 def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str: +1832 return self.binary(expression, ">>") 1833 -1834 def command_sql(self, expression: exp.Command) -> str: -1835 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1834 def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str: +1835 return self.binary(expression, "^") 1836 -1837 def comment_sql(self, expression: exp.Comment) -> str: -1838 this = self.sql(expression, "this") -1839 kind = expression.args["kind"] -1840 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " -1841 expression_sql = self.sql(expression, "expression") -1842 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1837 def cast_sql(self, expression: exp.Cast) -> str: +1838 return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +1839 +1840 def currentdate_sql(self, expression: exp.CurrentDate) -> str: +1841 zone = self.sql(expression, "this") +1842 return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE" 1843 -1844 def transaction_sql(self, expression: exp.Transaction) -> str: -1845 return "BEGIN" +1844 def collate_sql(self, expression: exp.Collate) -> str: +1845 return self.binary(expression, "COLLATE") 1846 -1847 def commit_sql(self, expression: exp.Commit) -> str: -1848 chain = expression.args.get("chain") -1849 if chain is not None: -1850 chain = " AND CHAIN" if chain else " AND NO CHAIN" -1851 -1852 return f"COMMIT{chain or ''}" -1853 -1854 def rollback_sql(self, expression: exp.Rollback) -> str: -1855 savepoint = expression.args.get("savepoint") -1856 savepoint = f" TO {savepoint}" if savepoint else "" -1857 return f"ROLLBACK{savepoint}" -1858 -1859 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: -1860 this = self.sql(expression, "this") -1861 -1862 dtype = self.sql(expression, "dtype") -1863 if dtype: -1864 collate = self.sql(expression, "collate") -1865 collate = f" COLLATE {collate}" if collate else "" -1866 using = self.sql(expression, "using") -1867 using = f" USING {using}" if using else "" -1868 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" -1869 -1870 default = self.sql(expression, "default") -1871 if default: -1872 return f"ALTER COLUMN {this} SET DEFAULT {default}" -1873 -1874 if not expression.args.get("drop"): -1875 self.unsupported("Unsupported ALTER COLUMN syntax") -1876 -1877 return f"ALTER COLUMN {this} DROP DEFAULT" -1878 -1879 def renametable_sql(self, expression: exp.RenameTable) -> str: -1880 this = self.sql(expression, "this") -1881 return f"RENAME TO {this}" +1847 def command_sql(self, expression: exp.Command) -> str: +1848 return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}" +1849 +1850 def comment_sql(self, expression: exp.Comment) -> str: +1851 this = self.sql(expression, "this") +1852 kind = expression.args["kind"] +1853 exists_sql = " IF EXISTS " if expression.args.get("exists") else " " +1854 expression_sql = self.sql(expression, "expression") +1855 return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}" +1856 +1857 def transaction_sql(self, expression: exp.Transaction) -> str: +1858 return "BEGIN" +1859 +1860 def commit_sql(self, expression: exp.Commit) -> str: +1861 chain = expression.args.get("chain") +1862 if chain is not None: +1863 chain = " AND CHAIN" if chain else " AND NO CHAIN" +1864 +1865 return f"COMMIT{chain or ''}" +1866 +1867 def rollback_sql(self, expression: exp.Rollback) -> str: +1868 savepoint = expression.args.get("savepoint") +1869 savepoint = f" TO {savepoint}" if savepoint else "" +1870 return f"ROLLBACK{savepoint}" +1871 +1872 def altercolumn_sql(self, expression: exp.AlterColumn) -> str: +1873 this = self.sql(expression, "this") +1874 +1875 dtype = self.sql(expression, "dtype") +1876 if dtype: +1877 collate = self.sql(expression, "collate") +1878 collate = f" COLLATE {collate}" if collate else "" +1879 using = self.sql(expression, "using") +1880 using = f" USING {using}" if using else "" +1881 return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}" 1882 -1883 def altertable_sql(self, expression: exp.AlterTable) -> str: -1884 actions = expression.args["actions"] -1885 -1886 if isinstance(actions[0], exp.ColumnDef): -1887 actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ") -1888 elif isinstance(actions[0], exp.Schema): -1889 actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ") -1890 elif isinstance(actions[0], exp.Delete): -1891 actions = self.expressions(expression, key="actions", flat=True) -1892 else: -1893 actions = self.expressions(expression, key="actions") -1894 -1895 exists = " IF EXISTS" if expression.args.get("exists") else "" -1896 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" -1897 -1898 def droppartition_sql(self, expression: exp.DropPartition) -> str: -1899 expressions = self.expressions(expression) -1900 exists = " IF EXISTS " if expression.args.get("exists") else " " -1901 return f"DROP{exists}{expressions}" -1902 -1903 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: -1904 this = self.sql(expression, "this") -1905 expression_ = self.sql(expression, "expression") -1906 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" +1883 default = self.sql(expression, "default") +1884 if default: +1885 return f"ALTER COLUMN {this} SET DEFAULT {default}" +1886 +1887 if not expression.args.get("drop"): +1888 self.unsupported("Unsupported ALTER COLUMN syntax") +1889 +1890 return f"ALTER COLUMN {this} DROP DEFAULT" +1891 +1892 def renametable_sql(self, expression: exp.RenameTable) -> str: +1893 this = self.sql(expression, "this") +1894 return f"RENAME TO {this}" +1895 +1896 def altertable_sql(self, expression: exp.AlterTable) -> str: +1897 actions = expression.args["actions"] +1898 +1899 if isinstance(actions[0], exp.ColumnDef): +1900 actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ") +1901 elif isinstance(actions[0], exp.Schema): +1902 actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ") +1903 elif isinstance(actions[0], exp.Delete): +1904 actions = self.expressions(expression, key="actions", flat=True) +1905 else: +1906 actions = self.expressions(expression, key="actions") 1907 -1908 enforced = expression.args.get("enforced") -1909 if enforced is not None: -1910 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" -1911 -1912 return f"{add_constraint} {expression_}" -1913 -1914 def distinct_sql(self, expression: exp.Distinct) -> str: -1915 this = self.expressions(expression, flat=True) -1916 this = f" {this}" if this else "" -1917 -1918 on = self.sql(expression, "on") -1919 on = f" ON {on}" if on else "" -1920 return f"DISTINCT{this}{on}" -1921 -1922 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: -1923 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1908 exists = " IF EXISTS" if expression.args.get("exists") else "" +1909 return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}" +1910 +1911 def droppartition_sql(self, expression: exp.DropPartition) -> str: +1912 expressions = self.expressions(expression) +1913 exists = " IF EXISTS " if expression.args.get("exists") else " " +1914 return f"DROP{exists}{expressions}" +1915 +1916 def addconstraint_sql(self, expression: exp.AddConstraint) -> str: +1917 this = self.sql(expression, "this") +1918 expression_ = self.sql(expression, "expression") +1919 add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD" +1920 +1921 enforced = expression.args.get("enforced") +1922 if enforced is not None: +1923 return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}" 1924 -1925 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: -1926 return f"{self.sql(expression, 'this')} RESPECT NULLS" -1927 -1928 def intdiv_sql(self, expression: exp.IntDiv) -> str: -1929 return self.sql( -1930 exp.Cast( -1931 this=exp.Div(this=expression.this, expression=expression.expression), -1932 to=exp.DataType(this=exp.DataType.Type.INT), -1933 ) -1934 ) -1935 -1936 def dpipe_sql(self, expression: exp.DPipe) -> str: -1937 return self.binary(expression, "||") -1938 -1939 def div_sql(self, expression: exp.Div) -> str: -1940 return self.binary(expression, "/") -1941 -1942 def overlaps_sql(self, expression: exp.Overlaps) -> str: -1943 return self.binary(expression, "OVERLAPS") -1944 -1945 def distance_sql(self, expression: exp.Distance) -> str: -1946 return self.binary(expression, "<->") -1947 -1948 def dot_sql(self, expression: exp.Dot) -> str: -1949 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" -1950 -1951 def eq_sql(self, expression: exp.EQ) -> str: -1952 return self.binary(expression, "=") -1953 -1954 def escape_sql(self, expression: exp.Escape) -> str: -1955 return self.binary(expression, "ESCAPE") -1956 -1957 def glob_sql(self, expression: exp.Glob) -> str: -1958 return self.binary(expression, "GLOB") -1959 -1960 def gt_sql(self, expression: exp.GT) -> str: -1961 return self.binary(expression, ">") -1962 -1963 def gte_sql(self, expression: exp.GTE) -> str: -1964 return self.binary(expression, ">=") -1965 -1966 def ilike_sql(self, expression: exp.ILike) -> str: -1967 return self.binary(expression, "ILIKE") -1968 -1969 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: -1970 return self.binary(expression, "ILIKE ANY") -1971 -1972 def is_sql(self, expression: exp.Is) -> str: -1973 return self.binary(expression, "IS") -1974 -1975 def like_sql(self, expression: exp.Like) -> str: -1976 return self.binary(expression, "LIKE") -1977 -1978 def likeany_sql(self, expression: exp.LikeAny) -> str: -1979 return self.binary(expression, "LIKE ANY") -1980 -1981 def similarto_sql(self, expression: exp.SimilarTo) -> str: -1982 return self.binary(expression, "SIMILAR TO") -1983 -1984 def lt_sql(self, expression: exp.LT) -> str: -1985 return self.binary(expression, "<") -1986 -1987 def lte_sql(self, expression: exp.LTE) -> str: -1988 return self.binary(expression, "<=") -1989 -1990 def mod_sql(self, expression: exp.Mod) -> str: -1991 return self.binary(expression, "%") -1992 -1993 def mul_sql(self, expression: exp.Mul) -> str: -1994 return self.binary(expression, "*") -1995 -1996 def neq_sql(self, expression: exp.NEQ) -> str: -1997 return self.binary(expression, "<>") -1998 -1999 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: -2000 return self.binary(expression, "IS NOT DISTINCT FROM") -2001 -2002 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: -2003 return self.binary(expression, "IS DISTINCT FROM") -2004 -2005 def or_sql(self, expression: exp.Or) -> str: -2006 return self.connector_sql(expression, "OR") -2007 -2008 def slice_sql(self, expression: exp.Slice) -> str: -2009 return self.binary(expression, ":") -2010 -2011 def sub_sql(self, expression: exp.Sub) -> str: -2012 return self.binary(expression, "-") -2013 -2014 def trycast_sql(self, expression: exp.TryCast) -> str: -2015 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" -2016 -2017 def use_sql(self, expression: exp.Use) -> str: -2018 kind = self.sql(expression, "kind") -2019 kind = f" {kind}" if kind else "" -2020 this = self.sql(expression, "this") -2021 this = f" {this}" if this else "" -2022 return f"USE{kind}{this}" +1925 return f"{add_constraint} {expression_}" +1926 +1927 def distinct_sql(self, expression: exp.Distinct) -> str: +1928 this = self.expressions(expression, flat=True) +1929 this = f" {this}" if this else "" +1930 +1931 on = self.sql(expression, "on") +1932 on = f" ON {on}" if on else "" +1933 return f"DISTINCT{this}{on}" +1934 +1935 def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str: +1936 return f"{self.sql(expression, 'this')} IGNORE NULLS" +1937 +1938 def respectnulls_sql(self, expression: exp.RespectNulls) -> str: +1939 return f"{self.sql(expression, 'this')} RESPECT NULLS" +1940 +1941 def intdiv_sql(self, expression: exp.IntDiv) -> str: +1942 return self.sql( +1943 exp.Cast( +1944 this=exp.Div(this=expression.this, expression=expression.expression), +1945 to=exp.DataType(this=exp.DataType.Type.INT), +1946 ) +1947 ) +1948 +1949 def dpipe_sql(self, expression: exp.DPipe) -> str: +1950 return self.binary(expression, "||") +1951 +1952 def div_sql(self, expression: exp.Div) -> str: +1953 return self.binary(expression, "/") +1954 +1955 def overlaps_sql(self, expression: exp.Overlaps) -> str: +1956 return self.binary(expression, "OVERLAPS") +1957 +1958 def distance_sql(self, expression: exp.Distance) -> str: +1959 return self.binary(expression, "<->") +1960 +1961 def dot_sql(self, expression: exp.Dot) -> str: +1962 return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}" +1963 +1964 def eq_sql(self, expression: exp.EQ) -> str: +1965 return self.binary(expression, "=") +1966 +1967 def escape_sql(self, expression: exp.Escape) -> str: +1968 return self.binary(expression, "ESCAPE") +1969 +1970 def glob_sql(self, expression: exp.Glob) -> str: +1971 return self.binary(expression, "GLOB") +1972 +1973 def gt_sql(self, expression: exp.GT) -> str: +1974 return self.binary(expression, ">") +1975 +1976 def gte_sql(self, expression: exp.GTE) -> str: +1977 return self.binary(expression, ">=") +1978 +1979 def ilike_sql(self, expression: exp.ILike) -> str: +1980 return self.binary(expression, "ILIKE") +1981 +1982 def ilikeany_sql(self, expression: exp.ILikeAny) -> str: +1983 return self.binary(expression, "ILIKE ANY") +1984 +1985 def is_sql(self, expression: exp.Is) -> str: +1986 return self.binary(expression, "IS") +1987 +1988 def like_sql(self, expression: exp.Like) -> str: +1989 return self.binary(expression, "LIKE") +1990 +1991 def likeany_sql(self, expression: exp.LikeAny) -> str: +1992 return self.binary(expression, "LIKE ANY") +1993 +1994 def similarto_sql(self, expression: exp.SimilarTo) -> str: +1995 return self.binary(expression, "SIMILAR TO") +1996 +1997 def lt_sql(self, expression: exp.LT) -> str: +1998 return self.binary(expression, "<") +1999 +2000 def lte_sql(self, expression: exp.LTE) -> str: +2001 return self.binary(expression, "<=") +2002 +2003 def mod_sql(self, expression: exp.Mod) -> str: +2004 return self.binary(expression, "%") +2005 +2006 def mul_sql(self, expression: exp.Mul) -> str: +2007 return self.binary(expression, "*") +2008 +2009 def neq_sql(self, expression: exp.NEQ) -> str: +2010 return self.binary(expression, "<>") +2011 +2012 def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str: +2013 return self.binary(expression, "IS NOT DISTINCT FROM") +2014 +2015 def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str: +2016 return self.binary(expression, "IS DISTINCT FROM") +2017 +2018 def or_sql(self, expression: exp.Or) -> str: +2019 return self.connector_sql(expression, "OR") +2020 +2021 def slice_sql(self, expression: exp.Slice) -> str: +2022 return self.binary(expression, ":") 2023 -2024 def binary(self, expression: exp.Binary, op: str) -> str: -2025 op = self.maybe_comment(op, comments=expression.comments) -2026 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" -2027 -2028 def function_fallback_sql(self, expression: exp.Func) -> str: -2029 args = [] -2030 for arg_value in expression.args.values(): -2031 if isinstance(arg_value, list): -2032 for value in arg_value: -2033 args.append(value) -2034 else: -2035 args.append(arg_value) +2024 def sub_sql(self, expression: exp.Sub) -> str: +2025 return self.binary(expression, "-") +2026 +2027 def trycast_sql(self, expression: exp.TryCast) -> str: +2028 return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})" +2029 +2030 def use_sql(self, expression: exp.Use) -> str: +2031 kind = self.sql(expression, "kind") +2032 kind = f" {kind}" if kind else "" +2033 this = self.sql(expression, "this") +2034 this = f" {this}" if this else "" +2035 return f"USE{kind}{this}" 2036 -2037 return self.func(expression.sql_name(), *args) -2038 -2039 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: -2040 return f"{self.normalize_func(name)}({self.format_args(*args)})" -2041 -2042 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: -2043 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) -2044 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: -2045 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) -2046 return ", ".join(arg_sqls) -2047 -2048 def text_width(self, args: t.Iterable) -> int: -2049 return sum(len(arg) for arg in args) -2050 -2051 def format_time(self, expression: exp.Expression) -> t.Optional[str]: -2052 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) -2053 -2054 def expressions( -2055 self, -2056 expression: t.Optional[exp.Expression] = None, -2057 key: t.Optional[str] = None, -2058 sqls: t.Optional[t.List[str]] = None, -2059 flat: bool = False, -2060 indent: bool = True, -2061 sep: str = ", ", -2062 prefix: str = "", -2063 ) -> str: -2064 expressions = expression.args.get(key or "expressions") if expression else sqls -2065 -2066 if not expressions: -2067 return "" -2068 -2069 if flat: -2070 return sep.join(self.sql(e) for e in expressions) -2071 -2072 num_sqls = len(expressions) -2073 -2074 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly -2075 pad = " " * self.pad -2076 stripped_sep = sep.strip() -2077 -2078 result_sqls = [] -2079 for i, e in enumerate(expressions): -2080 sql = self.sql(e, comment=False) -2081 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" -2082 -2083 if self.pretty: -2084 if self._leading_comma: -2085 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") -2086 else: -2087 result_sqls.append( -2088 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" -2089 ) -2090 else: -2091 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") -2092 -2093 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) -2094 return self.indent(result_sql, skip_first=False) if indent else result_sql +2037 def binary(self, expression: exp.Binary, op: str) -> str: +2038 op = self.maybe_comment(op, comments=expression.comments) +2039 return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}" +2040 +2041 def function_fallback_sql(self, expression: exp.Func) -> str: +2042 args = [] +2043 for arg_value in expression.args.values(): +2044 if isinstance(arg_value, list): +2045 for value in arg_value: +2046 args.append(value) +2047 else: +2048 args.append(arg_value) +2049 +2050 return self.func(expression.sql_name(), *args) +2051 +2052 def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str: +2053 return f"{self.normalize_func(name)}({self.format_args(*args)})" +2054 +2055 def format_args(self, *args: t.Optional[str | exp.Expression]) -> str: +2056 arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None) +2057 if self.pretty and self.text_width(arg_sqls) > self._max_text_width: +2058 return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True) +2059 return ", ".join(arg_sqls) +2060 +2061 def text_width(self, args: t.Iterable) -> int: +2062 return sum(len(arg) for arg in args) +2063 +2064 def format_time(self, expression: exp.Expression) -> t.Optional[str]: +2065 return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie) +2066 +2067 def expressions( +2068 self, +2069 expression: t.Optional[exp.Expression] = None, +2070 key: t.Optional[str] = None, +2071 sqls: t.Optional[t.List[str]] = None, +2072 flat: bool = False, +2073 indent: bool = True, +2074 sep: str = ", ", +2075 prefix: str = "", +2076 ) -> str: +2077 expressions = expression.args.get(key or "expressions") if expression else sqls +2078 +2079 if not expressions: +2080 return "" +2081 +2082 if flat: +2083 return sep.join(self.sql(e) for e in expressions) +2084 +2085 num_sqls = len(expressions) +2086 +2087 # These are calculated once in case we have the leading_comma / pretty option set, correspondingly +2088 pad = " " * self.pad +2089 stripped_sep = sep.strip() +2090 +2091 result_sqls = [] +2092 for i, e in enumerate(expressions): +2093 sql = self.sql(e, comment=False) +2094 comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else "" 2095 -2096 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: -2097 flat = flat or isinstance(expression.parent, exp.Properties) -2098 expressions_sql = self.expressions(expression, flat=flat) -2099 if flat: -2100 return f"{op} {expressions_sql}" -2101 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" -2102 -2103 def naked_property(self, expression: exp.Property) -> str: -2104 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) -2105 if not property_name: -2106 self.unsupported(f"Unsupported property {expression.__class__.__name__}") -2107 return f"{property_name} {self.sql(expression, 'this')}" +2096 if self.pretty: +2097 if self._leading_comma: +2098 result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}") +2099 else: +2100 result_sqls.append( +2101 f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}" +2102 ) +2103 else: +2104 result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}") +2105 +2106 result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls) +2107 return self.indent(result_sql, skip_first=False) if indent else result_sql 2108 -2109 def set_operation(self, expression: exp.Expression, op: str) -> str: -2110 this = self.sql(expression, "this") -2111 op = self.seg(op) -2112 return self.query_modifiers( -2113 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" -2114 ) +2109 def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str: +2110 flat = flat or isinstance(expression.parent, exp.Properties) +2111 expressions_sql = self.expressions(expression, flat=flat) +2112 if flat: +2113 return f"{op} {expressions_sql}" +2114 return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}" 2115 -2116 def tag_sql(self, expression: exp.Tag) -> str: -2117 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" -2118 -2119 def token_sql(self, token_type: TokenType) -> str: -2120 return self.TOKEN_MAPPING.get(token_type, token_type.name) +2116 def naked_property(self, expression: exp.Property) -> str: +2117 property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__) +2118 if not property_name: +2119 self.unsupported(f"Unsupported property {expression.__class__.__name__}") +2120 return f"{property_name} {self.sql(expression, 'this')}" 2121 -2122 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2122 def set_operation(self, expression: exp.Expression, op: str) -> str: 2123 this = self.sql(expression, "this") -2124 expressions = self.no_identify(self.expressions, expression) -2125 expressions = ( -2126 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2124 op = self.seg(op) +2125 return self.query_modifiers( +2126 expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}" 2127 ) -2128 return f"{this}{expressions}" -2129 -2130 def joinhint_sql(self, expression: exp.JoinHint) -> str: -2131 this = self.sql(expression, "this") -2132 expressions = self.expressions(expression, flat=True) -2133 return f"{this}({expressions})" +2128 +2129 def tag_sql(self, expression: exp.Tag) -> str: +2130 return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}" +2131 +2132 def token_sql(self, token_type: TokenType) -> str: +2133 return self.TOKEN_MAPPING.get(token_type, token_type.name) 2134 -2135 def kwarg_sql(self, expression: exp.Kwarg) -> str: -2136 return self.binary(expression, "=>") -2137 -2138 def when_sql(self, expression: exp.When) -> str: -2139 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" -2140 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" -2141 condition = self.sql(expression, "condition") -2142 condition = f" AND {condition}" if condition else "" -2143 -2144 then_expression = expression.args.get("then") -2145 if isinstance(then_expression, exp.Insert): -2146 then = f"INSERT {self.sql(then_expression, 'this')}" -2147 if "expression" in then_expression.args: -2148 then += f" VALUES {self.sql(then_expression, 'expression')}" -2149 elif isinstance(then_expression, exp.Update): -2150 if isinstance(then_expression.args.get("expressions"), exp.Star): -2151 then = f"UPDATE {self.sql(then_expression, 'expressions')}" -2152 else: -2153 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" -2154 else: -2155 then = self.sql(then_expression) -2156 return f"WHEN {matched}{source}{condition} THEN {then}" -2157 -2158 def merge_sql(self, expression: exp.Merge) -> str: -2159 this = self.sql(expression, "this") -2160 using = f"USING {self.sql(expression, 'using')}" -2161 on = f"ON {self.sql(expression, 'on')}" -2162 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" -2163 -2164 def tochar_sql(self, expression: exp.ToChar) -> str: -2165 if expression.args.get("format"): -2166 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") -2167 -2168 return self.sql(exp.cast(expression.this, "text")) +2135 def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str: +2136 this = self.sql(expression, "this") +2137 expressions = self.no_identify(self.expressions, expression) +2138 expressions = ( +2139 self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}" +2140 ) +2141 return f"{this}{expressions}" +2142 +2143 def joinhint_sql(self, expression: exp.JoinHint) -> str: +2144 this = self.sql(expression, "this") +2145 expressions = self.expressions(expression, flat=True) +2146 return f"{this}({expressions})" +2147 +2148 def kwarg_sql(self, expression: exp.Kwarg) -> str: +2149 return self.binary(expression, "=>") +2150 +2151 def when_sql(self, expression: exp.When) -> str: +2152 matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED" +2153 source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else "" +2154 condition = self.sql(expression, "condition") +2155 condition = f" AND {condition}" if condition else "" +2156 +2157 then_expression = expression.args.get("then") +2158 if isinstance(then_expression, exp.Insert): +2159 then = f"INSERT {self.sql(then_expression, 'this')}" +2160 if "expression" in then_expression.args: +2161 then += f" VALUES {self.sql(then_expression, 'expression')}" +2162 elif isinstance(then_expression, exp.Update): +2163 if isinstance(then_expression.args.get("expressions"), exp.Star): +2164 then = f"UPDATE {self.sql(then_expression, 'expressions')}" +2165 else: +2166 then = f"UPDATE SET {self.expressions(then_expression, flat=True)}" +2167 else: +2168 then = self.sql(then_expression) +2169 return f"WHEN {matched}{source}{condition} THEN {then}" +2170 +2171 def merge_sql(self, expression: exp.Merge) -> str: +2172 this = self.sql(expression, "this") +2173 using = f"USING {self.sql(expression, 'using')}" +2174 on = f"ON {self.sql(expression, 'on')}" +2175 return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}" +2176 +2177 def tochar_sql(self, expression: exp.ToChar) -> str: +2178 if expression.args.get("format"): +2179 self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function") +2180 +2181 return self.sql(exp.cast(expression.this, "text"))
    @@ -5695,7 +5724,7 @@ Default: True
    526    def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str:
     527        this = self.sql(expression, "this")
    -528        kind_sql = self.sql(expression, "kind")
    +528        kind_sql = self.sql(expression, "kind").strip()
     529        return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql
     
    @@ -7192,37 +7221,39 @@ Default: True
    def - tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED') -> str: + tablesample_sql( self, expression: sqlglot.expressions.TableSample, seed_prefix: str = 'SEED', sep=' AS ') -> str:
    -
    1119    def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str:
    -1120        if self.alias_post_tablesample and expression.this.alias:
    -1121            this = self.sql(expression.this, "this")
    -1122            alias = f" AS {self.sql(expression.this, 'alias')}"
    -1123        else:
    -1124            this = self.sql(expression, "this")
    -1125            alias = ""
    -1126        method = self.sql(expression, "method")
    -1127        method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else ""
    -1128        numerator = self.sql(expression, "bucket_numerator")
    -1129        denominator = self.sql(expression, "bucket_denominator")
    -1130        field = self.sql(expression, "bucket_field")
    -1131        field = f" ON {field}" if field else ""
    -1132        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    -1133        percent = self.sql(expression, "percent")
    -1134        percent = f"{percent} PERCENT" if percent else ""
    -1135        rows = self.sql(expression, "rows")
    -1136        rows = f"{rows} ROWS" if rows else ""
    -1137        size = self.sql(expression, "size")
    -1138        if size and self.TABLESAMPLE_SIZE_IS_PERCENT:
    -1139            size = f"{size} PERCENT"
    -1140        seed = self.sql(expression, "seed")
    -1141        seed = f" {seed_prefix} ({seed})" if seed else ""
    -1142        kind = expression.args.get("kind", "TABLESAMPLE")
    -1143        return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}"
    +            
    1119    def tablesample_sql(
    +1120        self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS "
    +1121    ) -> str:
    +1122        if self.alias_post_tablesample and expression.this.alias:
    +1123            this = self.sql(expression.this, "this")
    +1124            alias = f"{sep}{self.sql(expression.this, 'alias')}"
    +1125        else:
    +1126            this = self.sql(expression, "this")
    +1127            alias = ""
    +1128        method = self.sql(expression, "method")
    +1129        method = f"{method.upper()} " if method and self.TABLESAMPLE_WITH_METHOD else ""
    +1130        numerator = self.sql(expression, "bucket_numerator")
    +1131        denominator = self.sql(expression, "bucket_denominator")
    +1132        field = self.sql(expression, "bucket_field")
    +1133        field = f" ON {field}" if field else ""
    +1134        bucket = f"BUCKET {numerator} OUT OF {denominator}{field}" if numerator else ""
    +1135        percent = self.sql(expression, "percent")
    +1136        percent = f"{percent} PERCENT" if percent else ""
    +1137        rows = self.sql(expression, "rows")
    +1138        rows = f"{rows} ROWS" if rows else ""
    +1139        size = self.sql(expression, "size")
    +1140        if size and self.TABLESAMPLE_SIZE_IS_PERCENT:
    +1141            size = f"{size} PERCENT"
    +1142        seed = self.sql(expression, "seed")
    +1143        seed = f" {seed_prefix} ({seed})" if seed else ""
    +1144        kind = expression.args.get("kind", "TABLESAMPLE")
    +1145        return f"{this} {kind} {method}({bucket}{percent}{rows}{size}){seed}{alias}"
     
    @@ -7240,15 +7271,15 @@ Default: True
    -
    1145    def pivot_sql(self, expression: exp.Pivot) -> str:
    -1146        this = self.sql(expression, "this")
    -1147        alias = self.sql(expression, "alias")
    -1148        alias = f" AS {alias}" if alias else ""
    -1149        unpivot = expression.args.get("unpivot")
    -1150        direction = "UNPIVOT" if unpivot else "PIVOT"
    -1151        expressions = self.expressions(expression, key="expressions")
    -1152        field = self.sql(expression, "field")
    -1153        return f"{this} {direction}({expressions} FOR {field}){alias}"
    +            
    1147    def pivot_sql(self, expression: exp.Pivot) -> str:
    +1148        this = self.sql(expression, "this")
    +1149        alias = self.sql(expression, "alias")
    +1150        alias = f" AS {alias}" if alias else ""
    +1151        unpivot = expression.args.get("unpivot")
    +1152        direction = "UNPIVOT" if unpivot else "PIVOT"
    +1153        expressions = self.expressions(expression, key="expressions")
    +1154        field = self.sql(expression, "field")
    +1155        return f"{this} {direction}({expressions} FOR {field}){alias}"
     
    @@ -7266,8 +7297,8 @@ Default: True
    -
    1155    def tuple_sql(self, expression: exp.Tuple) -> str:
    -1156        return f"({self.expressions(expression, flat=True)})"
    +            
    1157    def tuple_sql(self, expression: exp.Tuple) -> str:
    +1158        return f"({self.expressions(expression, flat=True)})"
     
    @@ -7285,14 +7316,14 @@ Default: True
    -
    1158    def update_sql(self, expression: exp.Update) -> str:
    -1159        this = self.sql(expression, "this")
    -1160        set_sql = self.expressions(expression, flat=True)
    -1161        from_sql = self.sql(expression, "from")
    -1162        where_sql = self.sql(expression, "where")
    -1163        returning = self.sql(expression, "returning")
    -1164        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}"
    -1165        return self.prepend_ctes(expression, sql)
    +            
    1160    def update_sql(self, expression: exp.Update) -> str:
    +1161        this = self.sql(expression, "this")
    +1162        set_sql = self.expressions(expression, flat=True)
    +1163        from_sql = self.sql(expression, "from")
    +1164        where_sql = self.sql(expression, "where")
    +1165        returning = self.sql(expression, "returning")
    +1166        sql = f"UPDATE {this} SET {set_sql}{from_sql}{where_sql}{returning}"
    +1167        return self.prepend_ctes(expression, sql)
     
    @@ -7310,16 +7341,16 @@ Default: True
    -
    1167    def values_sql(self, expression: exp.Values) -> str:
    -1168        args = self.expressions(expression)
    -1169        alias = self.sql(expression, "alias")
    -1170        values = f"VALUES{self.seg('')}{args}"
    -1171        values = (
    -1172            f"({values})"
    -1173            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    -1174            else values
    -1175        )
    -1176        return f"{values} AS {alias}" if alias else values
    +            
    1169    def values_sql(self, expression: exp.Values) -> str:
    +1170        args = self.expressions(expression)
    +1171        alias = self.sql(expression, "alias")
    +1172        values = f"VALUES{self.seg('')}{args}"
    +1173        values = (
    +1174            f"({values})"
    +1175            if self.WRAP_DERIVED_VALUES and (alias or isinstance(expression.parent, exp.From))
    +1176            else values
    +1177        )
    +1178        return f"{values} AS {alias}" if alias else values
     
    @@ -7337,8 +7368,8 @@ Default: True
    -
    1178    def var_sql(self, expression: exp.Var) -> str:
    -1179        return self.sql(expression, "this")
    +            
    1180    def var_sql(self, expression: exp.Var) -> str:
    +1181        return self.sql(expression, "this")
     
    @@ -7356,10 +7387,10 @@ Default: True
    -
    1181    def into_sql(self, expression: exp.Into) -> str:
    -1182        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    -1183        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    -1184        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
    +            
    1183    def into_sql(self, expression: exp.Into) -> str:
    +1184        temporary = " TEMPORARY" if expression.args.get("temporary") else ""
    +1185        unlogged = " UNLOGGED" if expression.args.get("unlogged") else ""
    +1186        return f"{self.seg('INTO')}{temporary or unlogged} {self.sql(expression, 'this')}"
     
    @@ -7377,9 +7408,9 @@ Default: True
    -
    1186    def from_sql(self, expression: exp.From) -> str:
    -1187        expressions = self.expressions(expression, flat=True)
    -1188        return f"{self.seg('FROM')} {expressions}"
    +            
    1188    def from_sql(self, expression: exp.From) -> str:
    +1189        expressions = self.expressions(expression, flat=True)
    +1190        return f"{self.seg('FROM')} {expressions}"
     
    @@ -7397,33 +7428,33 @@ Default: True
    -
    1190    def group_sql(self, expression: exp.Group) -> str:
    -1191        group_by = self.op_expressions("GROUP BY", expression)
    -1192        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    -1193        grouping_sets = (
    -1194            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    -1195        )
    -1196
    -1197        cube = expression.args.get("cube", [])
    -1198        if seq_get(cube, 0) is True:
    -1199            return f"{group_by}{self.seg('WITH CUBE')}"
    -1200        else:
    -1201            cube_sql = self.expressions(expression, key="cube", indent=False)
    -1202            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
    -1203
    -1204        rollup = expression.args.get("rollup", [])
    -1205        if seq_get(rollup, 0) is True:
    -1206            return f"{group_by}{self.seg('WITH ROLLUP')}"
    -1207        else:
    -1208            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    -1209            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
    -1210
    -1211        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    +            
    1192    def group_sql(self, expression: exp.Group) -> str:
    +1193        group_by = self.op_expressions("GROUP BY", expression)
    +1194        grouping_sets = self.expressions(expression, key="grouping_sets", indent=False)
    +1195        grouping_sets = (
    +1196            f"{self.seg('GROUPING SETS')} {self.wrap(grouping_sets)}" if grouping_sets else ""
    +1197        )
    +1198
    +1199        cube = expression.args.get("cube", [])
    +1200        if seq_get(cube, 0) is True:
    +1201            return f"{group_by}{self.seg('WITH CUBE')}"
    +1202        else:
    +1203            cube_sql = self.expressions(expression, key="cube", indent=False)
    +1204            cube_sql = f"{self.seg('CUBE')} {self.wrap(cube_sql)}" if cube_sql else ""
    +1205
    +1206        rollup = expression.args.get("rollup", [])
    +1207        if seq_get(rollup, 0) is True:
    +1208            return f"{group_by}{self.seg('WITH ROLLUP')}"
    +1209        else:
    +1210            rollup_sql = self.expressions(expression, key="rollup", indent=False)
    +1211            rollup_sql = f"{self.seg('ROLLUP')} {self.wrap(rollup_sql)}" if rollup_sql else ""
     1212
    -1213        if expression.args.get("expressions") and groupings:
    -1214            group_by = f"{group_by},"
    -1215
    -1216        return f"{group_by}{groupings}"
    +1213        groupings = csv(grouping_sets, cube_sql, rollup_sql, sep=",")
    +1214
    +1215        if expression.args.get("expressions") and groupings:
    +1216            group_by = f"{group_by},"
    +1217
    +1218        return f"{group_by}{groupings}"
     
    @@ -7441,9 +7472,9 @@ Default: True
    -
    1218    def having_sql(self, expression: exp.Having) -> str:
    -1219        this = self.indent(self.sql(expression, "this"))
    -1220        return f"{self.seg('HAVING')}{self.sep()}{this}"
    +            
    1220    def having_sql(self, expression: exp.Having) -> str:
    +1221        this = self.indent(self.sql(expression, "this"))
    +1222        return f"{self.seg('HAVING')}{self.sep()}{this}"
     
    @@ -7461,37 +7492,37 @@ Default: True
    -
    1222    def join_sql(self, expression: exp.Join) -> str:
    -1223        op_sql = self.seg(
    -1224            " ".join(
    -1225                op
    -1226                for op in (
    -1227                    "NATURAL" if expression.args.get("natural") else None,
    -1228                    expression.side,
    -1229                    expression.kind,
    -1230                    expression.hint if self.JOIN_HINTS else None,
    -1231                    "JOIN",
    -1232                )
    -1233                if op
    -1234            )
    -1235        )
    -1236        on_sql = self.sql(expression, "on")
    -1237        using = expression.args.get("using")
    -1238
    -1239        if not on_sql and using:
    -1240            on_sql = csv(*(self.sql(column) for column in using))
    -1241
    -1242        if on_sql:
    -1243            on_sql = self.indent(on_sql, skip_first=True)
    -1244            space = self.seg(" " * self.pad) if self.pretty else " "
    -1245            if using:
    -1246                on_sql = f"{space}USING ({on_sql})"
    -1247            else:
    -1248                on_sql = f"{space}ON {on_sql}"
    -1249
    -1250        expression_sql = self.sql(expression, "expression")
    -1251        this_sql = self.sql(expression, "this")
    -1252        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
    +            
    1224    def join_sql(self, expression: exp.Join) -> str:
    +1225        op_sql = self.seg(
    +1226            " ".join(
    +1227                op
    +1228                for op in (
    +1229                    "NATURAL" if expression.args.get("natural") else None,
    +1230                    expression.side,
    +1231                    expression.kind,
    +1232                    expression.hint if self.JOIN_HINTS else None,
    +1233                    "JOIN",
    +1234                )
    +1235                if op
    +1236            )
    +1237        )
    +1238        on_sql = self.sql(expression, "on")
    +1239        using = expression.args.get("using")
    +1240
    +1241        if not on_sql and using:
    +1242            on_sql = csv(*(self.sql(column) for column in using))
    +1243
    +1244        if on_sql:
    +1245            on_sql = self.indent(on_sql, skip_first=True)
    +1246            space = self.seg(" " * self.pad) if self.pretty else " "
    +1247            if using:
    +1248                on_sql = f"{space}USING ({on_sql})"
    +1249            else:
    +1250                on_sql = f"{space}ON {on_sql}"
    +1251
    +1252        expression_sql = self.sql(expression, "expression")
    +1253        this_sql = self.sql(expression, "this")
    +1254        return f"{expression_sql}{op_sql} {this_sql}{on_sql}"
     
    @@ -7509,10 +7540,10 @@ Default: True
    -
    1254    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    -1255        args = self.expressions(expression, flat=True)
    -1256        args = f"({args})" if len(args.split(",")) > 1 else args
    -1257        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
    +            
    1256    def lambda_sql(self, expression: exp.Lambda, arrow_sep: str = "->") -> str:
    +1257        args = self.expressions(expression, flat=True)
    +1258        args = f"({args})" if len(args.split(",")) > 1 else args
    +1259        return f"{args} {arrow_sep} {self.sql(expression, 'this')}"
     
    @@ -7530,23 +7561,23 @@ Default: True
    -
    1259    def lateral_sql(self, expression: exp.Lateral) -> str:
    -1260        this = self.sql(expression, "this")
    -1261
    -1262        if isinstance(expression.this, exp.Subquery):
    -1263            return f"LATERAL {this}"
    -1264
    -1265        if expression.args.get("view"):
    -1266            alias = expression.args["alias"]
    -1267            columns = self.expressions(alias, key="columns", flat=True)
    -1268            table = f" {alias.name}" if alias.name else ""
    -1269            columns = f" AS {columns}" if columns else ""
    -1270            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    -1271            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    -1272
    -1273        alias = self.sql(expression, "alias")
    -1274        alias = f" AS {alias}" if alias else ""
    -1275        return f"LATERAL {this}{alias}"
    +            
    1261    def lateral_sql(self, expression: exp.Lateral) -> str:
    +1262        this = self.sql(expression, "this")
    +1263
    +1264        if isinstance(expression.this, exp.Subquery):
    +1265            return f"LATERAL {this}"
    +1266
    +1267        if expression.args.get("view"):
    +1268            alias = expression.args["alias"]
    +1269            columns = self.expressions(alias, key="columns", flat=True)
    +1270            table = f" {alias.name}" if alias.name else ""
    +1271            columns = f" AS {columns}" if columns else ""
    +1272            op_sql = self.seg(f"LATERAL VIEW{' OUTER' if expression.args.get('outer') else ''}")
    +1273            return f"{op_sql}{self.sep()}{this}{table}{columns}"
    +1274
    +1275        alias = self.sql(expression, "alias")
    +1276        alias = f" AS {alias}" if alias else ""
    +1277        return f"LATERAL {this}{alias}"
     
    @@ -7564,9 +7595,9 @@ Default: True
    -
    1277    def limit_sql(self, expression: exp.Limit) -> str:
    -1278        this = self.sql(expression, "this")
    -1279        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
    +            
    1279    def limit_sql(self, expression: exp.Limit) -> str:
    +1280        this = self.sql(expression, "this")
    +1281        return f"{this}{self.seg('LIMIT')} {self.sql(expression, 'expression')}"
     
    @@ -7584,9 +7615,9 @@ Default: True
    -
    1281    def offset_sql(self, expression: exp.Offset) -> str:
    -1282        this = self.sql(expression, "this")
    -1283        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
    +            
    1283    def offset_sql(self, expression: exp.Offset) -> str:
    +1284        this = self.sql(expression, "this")
    +1285        return f"{this}{self.seg('OFFSET')} {self.sql(expression, 'expression')}"
     
    @@ -7604,15 +7635,15 @@ Default: True
    -
    1285    def setitem_sql(self, expression: exp.SetItem) -> str:
    -1286        kind = self.sql(expression, "kind")
    -1287        kind = f"{kind} " if kind else ""
    -1288        this = self.sql(expression, "this")
    -1289        expressions = self.expressions(expression)
    -1290        collate = self.sql(expression, "collate")
    -1291        collate = f" COLLATE {collate}" if collate else ""
    -1292        global_ = "GLOBAL " if expression.args.get("global") else ""
    -1293        return f"{global_}{kind}{this}{expressions}{collate}"
    +            
    1287    def setitem_sql(self, expression: exp.SetItem) -> str:
    +1288        kind = self.sql(expression, "kind")
    +1289        kind = f"{kind} " if kind else ""
    +1290        this = self.sql(expression, "this")
    +1291        expressions = self.expressions(expression)
    +1292        collate = self.sql(expression, "collate")
    +1293        collate = f" COLLATE {collate}" if collate else ""
    +1294        global_ = "GLOBAL " if expression.args.get("global") else ""
    +1295        return f"{global_}{kind}{this}{expressions}{collate}"
     
    @@ -7630,11 +7661,11 @@ Default: True
    -
    1295    def set_sql(self, expression: exp.Set) -> str:
    -1296        expressions = (
    -1297            f" {self.expressions(expression, flat=True)}" if expression.expressions else ""
    -1298        )
    -1299        return f"SET{expressions}"
    +            
    1297    def set_sql(self, expression: exp.Set) -> str:
    +1298        expressions = (
    +1299            f" {self.expressions(expression, flat=True)}" if expression.expressions else ""
    +1300        )
    +1301        return f"SET{expressions}"
     
    @@ -7652,8 +7683,8 @@ Default: True
    -
    1301    def pragma_sql(self, expression: exp.Pragma) -> str:
    -1302        return f"PRAGMA {self.sql(expression, 'this')}"
    +            
    1303    def pragma_sql(self, expression: exp.Pragma) -> str:
    +1304        return f"PRAGMA {self.sql(expression, 'this')}"
     
    @@ -7671,13 +7702,13 @@ Default: True
    -
    1304    def lock_sql(self, expression: exp.Lock) -> str:
    -1305        if self.LOCKING_READS_SUPPORTED:
    -1306            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    -1307            return self.seg(f"FOR {lock_type}")
    -1308
    -1309        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    -1310        return ""
    +            
    1306    def lock_sql(self, expression: exp.Lock) -> str:
    +1307        if self.LOCKING_READS_SUPPORTED:
    +1308            lock_type = "UPDATE" if expression.args["update"] else "SHARE"
    +1309            return self.seg(f"FOR {lock_type}")
    +1310
    +1311        self.unsupported("Locking reads using 'FOR UPDATE/SHARE' are not supported")
    +1312        return ""
     
    @@ -7695,14 +7726,14 @@ Default: True
    -
    1312    def literal_sql(self, expression: exp.Literal) -> str:
    -1313        text = expression.this or ""
    -1314        if expression.is_string:
    -1315            text = text.replace(self.quote_end, self._escaped_quote_end)
    -1316            if self.pretty:
    -1317                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    -1318            text = f"{self.quote_start}{text}{self.quote_end}"
    -1319        return text
    +            
    1314    def literal_sql(self, expression: exp.Literal) -> str:
    +1315        text = expression.this or ""
    +1316        if expression.is_string:
    +1317            text = text.replace(self.quote_end, self._escaped_quote_end)
    +1318            if self.pretty:
    +1319                text = text.replace("\n", self.SENTINEL_LINE_BREAK)
    +1320            text = f"{self.quote_start}{text}{self.quote_end}"
    +1321        return text
     
    @@ -7720,18 +7751,18 @@ Default: True
    -
    1321    def loaddata_sql(self, expression: exp.LoadData) -> str:
    -1322        local = " LOCAL" if expression.args.get("local") else ""
    -1323        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    -1324        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    -1325        this = f" INTO TABLE {self.sql(expression, 'this')}"
    -1326        partition = self.sql(expression, "partition")
    -1327        partition = f" {partition}" if partition else ""
    -1328        input_format = self.sql(expression, "input_format")
    -1329        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    -1330        serde = self.sql(expression, "serde")
    -1331        serde = f" SERDE {serde}" if serde else ""
    -1332        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
    +            
    1323    def loaddata_sql(self, expression: exp.LoadData) -> str:
    +1324        local = " LOCAL" if expression.args.get("local") else ""
    +1325        inpath = f" INPATH {self.sql(expression, 'inpath')}"
    +1326        overwrite = " OVERWRITE" if expression.args.get("overwrite") else ""
    +1327        this = f" INTO TABLE {self.sql(expression, 'this')}"
    +1328        partition = self.sql(expression, "partition")
    +1329        partition = f" {partition}" if partition else ""
    +1330        input_format = self.sql(expression, "input_format")
    +1331        input_format = f" INPUTFORMAT {input_format}" if input_format else ""
    +1332        serde = self.sql(expression, "serde")
    +1333        serde = f" SERDE {serde}" if serde else ""
    +1334        return f"LOAD DATA{local}{inpath}{overwrite}{this}{partition}{input_format}{serde}"
     
    @@ -7749,8 +7780,8 @@ Default: True
    -
    1334    def null_sql(self, *_) -> str:
    -1335        return "NULL"
    +            
    1336    def null_sql(self, *_) -> str:
    +1337        return "NULL"
     
    @@ -7768,8 +7799,8 @@ Default: True
    -
    1337    def boolean_sql(self, expression: exp.Boolean) -> str:
    -1338        return "TRUE" if expression.this else "FALSE"
    +            
    1339    def boolean_sql(self, expression: exp.Boolean) -> str:
    +1340        return "TRUE" if expression.this else "FALSE"
     
    @@ -7787,10 +7818,10 @@ Default: True
    -
    1340    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    -1341        this = self.sql(expression, "this")
    -1342        this = f"{this} " if this else this
    -1343        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
    +            
    1342    def order_sql(self, expression: exp.Order, flat: bool = False) -> str:
    +1343        this = self.sql(expression, "this")
    +1344        this = f"{this} " if this else this
    +1345        return self.op_expressions(f"{this}ORDER BY", expression, flat=this or flat)  # type: ignore
     
    @@ -7808,8 +7839,8 @@ Default: True
    -
    1345    def cluster_sql(self, expression: exp.Cluster) -> str:
    -1346        return self.op_expressions("CLUSTER BY", expression)
    +            
    1347    def cluster_sql(self, expression: exp.Cluster) -> str:
    +1348        return self.op_expressions("CLUSTER BY", expression)
     
    @@ -7827,8 +7858,8 @@ Default: True
    -
    1348    def distribute_sql(self, expression: exp.Distribute) -> str:
    -1349        return self.op_expressions("DISTRIBUTE BY", expression)
    +            
    1350    def distribute_sql(self, expression: exp.Distribute) -> str:
    +1351        return self.op_expressions("DISTRIBUTE BY", expression)
     
    @@ -7846,8 +7877,8 @@ Default: True
    -
    1351    def sort_sql(self, expression: exp.Sort) -> str:
    -1352        return self.op_expressions("SORT BY", expression)
    +            
    1353    def sort_sql(self, expression: exp.Sort) -> str:
    +1354        return self.op_expressions("SORT BY", expression)
     
    @@ -7865,36 +7896,36 @@ Default: True
    -
    1354    def ordered_sql(self, expression: exp.Ordered) -> str:
    -1355        desc = expression.args.get("desc")
    -1356        asc = not desc
    -1357
    -1358        nulls_first = expression.args.get("nulls_first")
    -1359        nulls_last = not nulls_first
    -1360        nulls_are_large = self.null_ordering == "nulls_are_large"
    -1361        nulls_are_small = self.null_ordering == "nulls_are_small"
    -1362        nulls_are_last = self.null_ordering == "nulls_are_last"
    -1363
    -1364        sort_order = " DESC" if desc else ""
    -1365        nulls_sort_change = ""
    -1366        if nulls_first and (
    -1367            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    -1368        ):
    -1369            nulls_sort_change = " NULLS FIRST"
    -1370        elif (
    -1371            nulls_last
    -1372            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    -1373            and not nulls_are_last
    -1374        ):
    -1375            nulls_sort_change = " NULLS LAST"
    -1376
    -1377        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    -1378            self.unsupported(
    -1379                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    -1380            )
    -1381            nulls_sort_change = ""
    -1382
    -1383        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
    +            
    1356    def ordered_sql(self, expression: exp.Ordered) -> str:
    +1357        desc = expression.args.get("desc")
    +1358        asc = not desc
    +1359
    +1360        nulls_first = expression.args.get("nulls_first")
    +1361        nulls_last = not nulls_first
    +1362        nulls_are_large = self.null_ordering == "nulls_are_large"
    +1363        nulls_are_small = self.null_ordering == "nulls_are_small"
    +1364        nulls_are_last = self.null_ordering == "nulls_are_last"
    +1365
    +1366        sort_order = " DESC" if desc else ""
    +1367        nulls_sort_change = ""
    +1368        if nulls_first and (
    +1369            (asc and nulls_are_large) or (desc and nulls_are_small) or nulls_are_last
    +1370        ):
    +1371            nulls_sort_change = " NULLS FIRST"
    +1372        elif (
    +1373            nulls_last
    +1374            and ((asc and nulls_are_small) or (desc and nulls_are_large))
    +1375            and not nulls_are_last
    +1376        ):
    +1377            nulls_sort_change = " NULLS LAST"
    +1378
    +1379        if nulls_sort_change and not self.NULL_ORDERING_SUPPORTED:
    +1380            self.unsupported(
    +1381                "Sorting in an ORDER BY on NULLS FIRST/NULLS LAST is not supported by this dialect"
    +1382            )
    +1383            nulls_sort_change = ""
    +1384
    +1385        return f"{self.sql(expression, 'this')}{sort_order}{nulls_sort_change}"
     
    @@ -7912,37 +7943,37 @@ Default: True
    -
    1385    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    -1386        partition = self.partition_by_sql(expression)
    -1387        order = self.sql(expression, "order")
    -1388        measures = self.expressions(expression, key="measures")
    -1389        measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else ""
    -1390        rows = self.sql(expression, "rows")
    -1391        rows = self.seg(rows) if rows else ""
    -1392        after = self.sql(expression, "after")
    -1393        after = self.seg(after) if after else ""
    -1394        pattern = self.sql(expression, "pattern")
    -1395        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    -1396        definition_sqls = [
    -1397            f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}"
    -1398            for definition in expression.args.get("define", [])
    -1399        ]
    -1400        definitions = self.expressions(sqls=definition_sqls)
    -1401        define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else ""
    -1402        body = "".join(
    -1403            (
    -1404                partition,
    -1405                order,
    -1406                measures,
    -1407                rows,
    -1408                after,
    -1409                pattern,
    -1410                define,
    -1411            )
    -1412        )
    -1413        alias = self.sql(expression, "alias")
    -1414        alias = f" {alias}" if alias else ""
    -1415        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}"
    +            
    1387    def matchrecognize_sql(self, expression: exp.MatchRecognize) -> str:
    +1388        partition = self.partition_by_sql(expression)
    +1389        order = self.sql(expression, "order")
    +1390        measures = self.expressions(expression, key="measures")
    +1391        measures = self.seg(f"MEASURES{self.seg(measures)}") if measures else ""
    +1392        rows = self.sql(expression, "rows")
    +1393        rows = self.seg(rows) if rows else ""
    +1394        after = self.sql(expression, "after")
    +1395        after = self.seg(after) if after else ""
    +1396        pattern = self.sql(expression, "pattern")
    +1397        pattern = self.seg(f"PATTERN ({pattern})") if pattern else ""
    +1398        definition_sqls = [
    +1399            f"{self.sql(definition, 'alias')} AS {self.sql(definition, 'this')}"
    +1400            for definition in expression.args.get("define", [])
    +1401        ]
    +1402        definitions = self.expressions(sqls=definition_sqls)
    +1403        define = self.seg(f"DEFINE{self.seg(definitions)}") if definitions else ""
    +1404        body = "".join(
    +1405            (
    +1406                partition,
    +1407                order,
    +1408                measures,
    +1409                rows,
    +1410                after,
    +1411                pattern,
    +1412                define,
    +1413            )
    +1414        )
    +1415        alias = self.sql(expression, "alias")
    +1416        alias = f" {alias}" if alias else ""
    +1417        return f"{self.seg('MATCH_RECOGNIZE')} {self.wrap(body)}{alias}"
     
    @@ -7960,38 +7991,38 @@ Default: True
    -
    1417    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    -1418        limit = expression.args.get("limit")
    -1419
    -1420        if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch):
    -1421            limit = exp.Limit(expression=limit.args.get("count"))
    -1422        elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit):
    -1423            limit = exp.Fetch(direction="FIRST", count=limit.expression)
    -1424
    -1425        fetch = isinstance(limit, exp.Fetch)
    +            
    1419    def query_modifiers(self, expression: exp.Expression, *sqls: str) -> str:
    +1420        limit = expression.args.get("limit")
    +1421
    +1422        if self.LIMIT_FETCH == "LIMIT" and isinstance(limit, exp.Fetch):
    +1423            limit = exp.Limit(expression=limit.args.get("count"))
    +1424        elif self.LIMIT_FETCH == "FETCH" and isinstance(limit, exp.Limit):
    +1425            limit = exp.Fetch(direction="FIRST", count=limit.expression)
     1426
    -1427        return csv(
    -1428            *sqls,
    -1429            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    -1430            self.sql(expression, "match"),
    -1431            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    -1432            self.sql(expression, "where"),
    -1433            self.sql(expression, "group"),
    -1434            self.sql(expression, "having"),
    -1435            self.sql(expression, "qualify"),
    -1436            self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True)
    -1437            if expression.args.get("windows")
    -1438            else "",
    -1439            self.sql(expression, "distribute"),
    -1440            self.sql(expression, "sort"),
    -1441            self.sql(expression, "cluster"),
    -1442            self.sql(expression, "order"),
    -1443            self.sql(expression, "offset") if fetch else self.sql(limit),
    -1444            self.sql(limit) if fetch else self.sql(expression, "offset"),
    -1445            self.sql(expression, "lock"),
    -1446            self.sql(expression, "sample"),
    -1447            sep="",
    -1448        )
    +1427        fetch = isinstance(limit, exp.Fetch)
    +1428
    +1429        return csv(
    +1430            *sqls,
    +1431            *[self.sql(sql) for sql in expression.args.get("joins") or []],
    +1432            self.sql(expression, "match"),
    +1433            *[self.sql(sql) for sql in expression.args.get("laterals") or []],
    +1434            self.sql(expression, "where"),
    +1435            self.sql(expression, "group"),
    +1436            self.sql(expression, "having"),
    +1437            self.sql(expression, "qualify"),
    +1438            self.seg("WINDOW ") + self.expressions(expression, key="windows", flat=True)
    +1439            if expression.args.get("windows")
    +1440            else "",
    +1441            self.sql(expression, "distribute"),
    +1442            self.sql(expression, "sort"),
    +1443            self.sql(expression, "cluster"),
    +1444            self.sql(expression, "order"),
    +1445            self.sql(expression, "offset") if fetch else self.sql(limit),
    +1446            self.sql(limit) if fetch else self.sql(expression, "offset"),
    +1447            self.sql(expression, "lock"),
    +1448            self.sql(expression, "sample"),
    +1449            sep="",
    +1450        )
     
    @@ -8009,21 +8040,21 @@ Default: True
    -
    1450    def select_sql(self, expression: exp.Select) -> str:
    -1451        kind = expression.args.get("kind")
    -1452        kind = f" AS {kind}" if kind else ""
    -1453        hint = self.sql(expression, "hint")
    -1454        distinct = self.sql(expression, "distinct")
    -1455        distinct = f" {distinct}" if distinct else ""
    -1456        expressions = self.expressions(expression)
    -1457        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    -1458        sql = self.query_modifiers(
    -1459            expression,
    -1460            f"SELECT{kind}{hint}{distinct}{expressions}",
    -1461            self.sql(expression, "into", comment=False),
    -1462            self.sql(expression, "from", comment=False),
    -1463        )
    -1464        return self.prepend_ctes(expression, sql)
    +            
    1452    def select_sql(self, expression: exp.Select) -> str:
    +1453        kind = expression.args.get("kind")
    +1454        kind = f" AS {kind}" if kind else ""
    +1455        hint = self.sql(expression, "hint")
    +1456        distinct = self.sql(expression, "distinct")
    +1457        distinct = f" {distinct}" if distinct else ""
    +1458        expressions = self.expressions(expression)
    +1459        expressions = f"{self.sep()}{expressions}" if expressions else expressions
    +1460        sql = self.query_modifiers(
    +1461            expression,
    +1462            f"SELECT{kind}{hint}{distinct}{expressions}",
    +1463            self.sql(expression, "into", comment=False),
    +1464            self.sql(expression, "from", comment=False),
    +1465        )
    +1466        return self.prepend_ctes(expression, sql)
     
    @@ -8041,11 +8072,11 @@ Default: True
    -
    1466    def schema_sql(self, expression: exp.Schema) -> str:
    -1467        this = self.sql(expression, "this")
    -1468        this = f"{this} " if this else ""
    -1469        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    -1470        return f"{this}{sql}"
    +            
    1468    def schema_sql(self, expression: exp.Schema) -> str:
    +1469        this = self.sql(expression, "this")
    +1470        this = f"{this} " if this else ""
    +1471        sql = f"({self.sep('')}{self.expressions(expression)}{self.seg(')', sep='')}"
    +1472        return f"{this}{sql}"
     
    @@ -8063,12 +8094,12 @@ Default: True
    -
    1472    def star_sql(self, expression: exp.Star) -> str:
    -1473        except_ = self.expressions(expression, key="except", flat=True)
    -1474        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    -1475        replace = self.expressions(expression, key="replace", flat=True)
    -1476        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    -1477        return f"*{except_}{replace}"
    +            
    1474    def star_sql(self, expression: exp.Star) -> str:
    +1475        except_ = self.expressions(expression, key="except", flat=True)
    +1476        except_ = f"{self.seg(self.STAR_MAPPING['except'])} ({except_})" if except_ else ""
    +1477        replace = self.expressions(expression, key="replace", flat=True)
    +1478        replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else ""
    +1479        return f"*{except_}{replace}"
     
    @@ -8086,8 +8117,8 @@ Default: True
    -
    1479    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    -1480        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
    +            
    1481    def structkwarg_sql(self, expression: exp.StructKwarg) -> str:
    +1482        return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}"
     
    @@ -8105,10 +8136,10 @@ Default: True
    -
    1482    def parameter_sql(self, expression: exp.Parameter) -> str:
    -1483        this = self.sql(expression, "this")
    -1484        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    -1485        return f"{self.PARAMETER_TOKEN}{this}"
    +            
    1484    def parameter_sql(self, expression: exp.Parameter) -> str:
    +1485        this = self.sql(expression, "this")
    +1486        this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}"
    +1487        return f"{self.PARAMETER_TOKEN}{this}"
     
    @@ -8126,12 +8157,12 @@ Default: True
    -
    1487    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    -1488        this = self.sql(expression, "this")
    -1489        kind = expression.text("kind")
    -1490        if kind:
    -1491            kind = f"{kind}."
    -1492        return f"@@{kind}{this}"
    +            
    1489    def sessionparameter_sql(self, expression: exp.SessionParameter) -> str:
    +1490        this = self.sql(expression, "this")
    +1491        kind = expression.text("kind")
    +1492        if kind:
    +1493            kind = f"{kind}."
    +1494        return f"@@{kind}{this}"
     
    @@ -8149,8 +8180,8 @@ Default: True
    -
    1494    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    -1495        return f":{expression.name}" if expression.name else "?"
    +            
    1496    def placeholder_sql(self, expression: exp.Placeholder) -> str:
    +1497        return f":{expression.name}" if expression.name else "?"
     
    @@ -8168,18 +8199,18 @@ Default: True
    -
    1497    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    -1498        alias = self.sql(expression, "alias")
    -1499        alias = f"{sep}{alias}" if alias else ""
    -1500
    -1501        sql = self.query_modifiers(
    -1502            expression,
    -1503            self.wrap(expression),
    -1504            alias,
    -1505            self.expressions(expression, key="pivots", sep=" "),
    -1506        )
    -1507
    -1508        return self.prepend_ctes(expression, sql)
    +            
    1499    def subquery_sql(self, expression: exp.Subquery, sep: str = " AS ") -> str:
    +1500        alias = self.sql(expression, "alias")
    +1501        alias = f"{sep}{alias}" if alias else ""
    +1502
    +1503        sql = self.query_modifiers(
    +1504            expression,
    +1505            self.wrap(expression),
    +1506            alias,
    +1507            self.expressions(expression, key="pivots", sep=" "),
    +1508        )
    +1509
    +1510        return self.prepend_ctes(expression, sql)
     
    @@ -8197,9 +8228,9 @@ Default: True
    -
    1510    def qualify_sql(self, expression: exp.Qualify) -> str:
    -1511        this = self.indent(self.sql(expression, "this"))
    -1512        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
    +            
    1512    def qualify_sql(self, expression: exp.Qualify) -> str:
    +1513        this = self.indent(self.sql(expression, "this"))
    +1514        return f"{self.seg('QUALIFY')}{self.sep()}{this}"
     
    @@ -8217,11 +8248,11 @@ Default: True
    -
    1514    def union_sql(self, expression: exp.Union) -> str:
    -1515        return self.prepend_ctes(
    -1516            expression,
    -1517            self.set_operation(expression, self.union_op(expression)),
    -1518        )
    +            
    1516    def union_sql(self, expression: exp.Union) -> str:
    +1517        return self.prepend_ctes(
    +1518            expression,
    +1519            self.set_operation(expression, self.union_op(expression)),
    +1520        )
     
    @@ -8239,10 +8270,10 @@ Default: True
    -
    1520    def union_op(self, expression: exp.Union) -> str:
    -1521        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    -1522        kind = kind if expression.args.get("distinct") else " ALL"
    -1523        return f"UNION{kind}"
    +            
    1522    def union_op(self, expression: exp.Union) -> str:
    +1523        kind = " DISTINCT" if self.EXPLICIT_UNION else ""
    +1524        kind = kind if expression.args.get("distinct") else " ALL"
    +1525        return f"UNION{kind}"
     
    @@ -8260,19 +8291,19 @@ Default: True
    -
    1525    def unnest_sql(self, expression: exp.Unnest) -> str:
    -1526        args = self.expressions(expression, flat=True)
    -1527        alias = expression.args.get("alias")
    -1528        if alias and self.unnest_column_only:
    -1529            columns = alias.columns
    -1530            alias = self.sql(columns[0]) if columns else ""
    -1531        else:
    -1532            alias = self.sql(expression, "alias")
    -1533        alias = f" AS {alias}" if alias else alias
    -1534        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    -1535        offset = expression.args.get("offset")
    -1536        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    -1537        return f"UNNEST({args}){ordinality}{alias}{offset}"
    +            
    1527    def unnest_sql(self, expression: exp.Unnest) -> str:
    +1528        args = self.expressions(expression, flat=True)
    +1529        alias = expression.args.get("alias")
    +1530        if alias and self.unnest_column_only:
    +1531            columns = alias.columns
    +1532            alias = self.sql(columns[0]) if columns else ""
    +1533        else:
    +1534            alias = self.sql(expression, "alias")
    +1535        alias = f" AS {alias}" if alias else alias
    +1536        ordinality = " WITH ORDINALITY" if expression.args.get("ordinality") else ""
    +1537        offset = expression.args.get("offset")
    +1538        offset = f" WITH OFFSET AS {self.sql(offset)}" if offset else ""
    +1539        return f"UNNEST({args}){ordinality}{alias}{offset}"
     
    @@ -8290,9 +8321,9 @@ Default: True
    -
    1539    def where_sql(self, expression: exp.Where) -> str:
    -1540        this = self.indent(self.sql(expression, "this"))
    -1541        return f"{self.seg('WHERE')}{self.sep()}{this}"
    +            
    1541    def where_sql(self, expression: exp.Where) -> str:
    +1542        this = self.indent(self.sql(expression, "this"))
    +1543        return f"{self.seg('WHERE')}{self.sep()}{this}"
     
    @@ -8310,28 +8341,34 @@ Default: True
    -
    1543    def window_sql(self, expression: exp.Window) -> str:
    -1544        this = self.sql(expression, "this")
    -1545
    -1546        partition = self.partition_by_sql(expression)
    +            
    1545    def window_sql(self, expression: exp.Window) -> str:
    +1546        this = self.sql(expression, "this")
     1547
    -1548        order = expression.args.get("order")
    -1549        order_sql = self.order_sql(order, flat=True) if order else ""
    -1550
    -1551        partition_sql = partition + " " if partition and order else partition
    +1548        partition = self.partition_by_sql(expression)
    +1549
    +1550        order = expression.args.get("order")
    +1551        order_sql = self.order_sql(order, flat=True) if order else ""
     1552
    -1553        spec = expression.args.get("spec")
    -1554        spec_sql = " " + self.window_spec_sql(spec) if spec else ""
    -1555
    -1556        alias = self.sql(expression, "alias")
    -1557        this = f"{this} {'AS' if expression.arg_key == 'windows' else 'OVER'}"
    -1558
    -1559        if not partition and not order and not spec and alias:
    -1560            return f"{this} {alias}"
    +1553        partition_sql = partition + " " if partition and order else partition
    +1554
    +1555        spec = expression.args.get("spec")
    +1556        spec_sql = " " + self.windowspec_sql(spec) if spec else ""
    +1557
    +1558        alias = self.sql(expression, "alias")
    +1559        over = self.sql(expression, "over") or "OVER"
    +1560        this = f"{this} {'AS' if expression.arg_key == 'windows' else over}"
     1561
    -1562        window_args = alias + partition_sql + order_sql + spec_sql
    -1563
    -1564        return f"{this} ({window_args.strip()})"
    +1562        first = expression.args.get("first")
    +1563        if first is not None:
    +1564            first = " FIRST " if first else " LAST "
    +1565        first = first or ""
    +1566
    +1567        if not partition and not order and not spec and alias:
    +1568            return f"{this} {alias}"
    +1569
    +1570        window_args = alias + first + partition_sql + order_sql + spec_sql
    +1571
    +1572        return f"{this} ({window_args.strip()})"
     
    @@ -8349,34 +8386,34 @@ Default: True
    -
    1566    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    -1567        partition = self.expressions(expression, key="partition_by", flat=True)
    -1568        return f"PARTITION BY {partition}" if partition else ""
    +            
    1574    def partition_by_sql(self, expression: exp.Window | exp.MatchRecognize) -> str:
    +1575        partition = self.expressions(expression, key="partition_by", flat=True)
    +1576        return f"PARTITION BY {partition}" if partition else ""
     
    -
    - +
    +
    def - window_spec_sql(self, expression: sqlglot.expressions.WindowSpec) -> str: + windowspec_sql(self, expression: sqlglot.expressions.WindowSpec) -> str: - +
    - -
    1570    def window_spec_sql(self, expression: exp.WindowSpec) -> str:
    -1571        kind = self.sql(expression, "kind")
    -1572        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    -1573        end = (
    -1574            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    -1575            or "CURRENT ROW"
    -1576        )
    -1577        return f"{kind} BETWEEN {start} AND {end}"
    +    
    +            
    1578    def windowspec_sql(self, expression: exp.WindowSpec) -> str:
    +1579        kind = self.sql(expression, "kind")
    +1580        start = csv(self.sql(expression, "start"), self.sql(expression, "start_side"), sep=" ")
    +1581        end = (
    +1582            csv(self.sql(expression, "end"), self.sql(expression, "end_side"), sep=" ")
    +1583            or "CURRENT ROW"
    +1584        )
    +1585        return f"{kind} BETWEEN {start} AND {end}"
     
    @@ -8394,10 +8431,10 @@ Default: True
    -
    1579    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    -1580        this = self.sql(expression, "this")
    -1581        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    -1582        return f"{this} WITHIN GROUP ({expression_sql})"
    +            
    1587    def withingroup_sql(self, expression: exp.WithinGroup) -> str:
    +1588        this = self.sql(expression, "this")
    +1589        expression_sql = self.sql(expression, "expression")[1:]  # order has a leading space
    +1590        return f"{this} WITHIN GROUP ({expression_sql})"
     
    @@ -8415,11 +8452,11 @@ Default: True
    -
    1584    def between_sql(self, expression: exp.Between) -> str:
    -1585        this = self.sql(expression, "this")
    -1586        low = self.sql(expression, "low")
    -1587        high = self.sql(expression, "high")
    -1588        return f"{this} BETWEEN {low} AND {high}"
    +            
    1592    def between_sql(self, expression: exp.Between) -> str:
    +1593        this = self.sql(expression, "this")
    +1594        low = self.sql(expression, "low")
    +1595        high = self.sql(expression, "high")
    +1596        return f"{this} BETWEEN {low} AND {high}"
     
    @@ -8437,11 +8474,11 @@ Default: True
    -
    1590    def bracket_sql(self, expression: exp.Bracket) -> str:
    -1591        expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset)
    -1592        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    -1593
    -1594        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
    +            
    1598    def bracket_sql(self, expression: exp.Bracket) -> str:
    +1599        expressions = apply_index_offset(expression.this, expression.expressions, self.index_offset)
    +1600        expressions_sql = ", ".join(self.sql(e) for e in expressions)
    +1601
    +1602        return f"{self.sql(expression, 'this')}[{expressions_sql}]"
     
    @@ -8459,8 +8496,8 @@ Default: True
    -
    1596    def all_sql(self, expression: exp.All) -> str:
    -1597        return f"ALL {self.wrap(expression)}"
    +            
    1604    def all_sql(self, expression: exp.All) -> str:
    +1605        return f"ALL {self.wrap(expression)}"
     
    @@ -8478,11 +8515,11 @@ Default: True
    -
    1599    def any_sql(self, expression: exp.Any) -> str:
    -1600        this = self.sql(expression, "this")
    -1601        if isinstance(expression.this, exp.Subqueryable):
    -1602            this = self.wrap(this)
    -1603        return f"ANY {this}"
    +            
    1607    def any_sql(self, expression: exp.Any) -> str:
    +1608        this = self.sql(expression, "this")
    +1609        if isinstance(expression.this, exp.Subqueryable):
    +1610            this = self.wrap(this)
    +1611        return f"ANY {this}"
     
    @@ -8500,8 +8537,8 @@ Default: True
    -
    1605    def exists_sql(self, expression: exp.Exists) -> str:
    -1606        return f"EXISTS{self.wrap(expression)}"
    +            
    1613    def exists_sql(self, expression: exp.Exists) -> str:
    +1614        return f"EXISTS{self.wrap(expression)}"
     
    @@ -8519,25 +8556,25 @@ Default: True
    -
    1608    def case_sql(self, expression: exp.Case) -> str:
    -1609        this = self.sql(expression, "this")
    -1610        statements = [f"CASE {this}" if this else "CASE"]
    -1611
    -1612        for e in expression.args["ifs"]:
    -1613            statements.append(f"WHEN {self.sql(e, 'this')}")
    -1614            statements.append(f"THEN {self.sql(e, 'true')}")
    -1615
    -1616        default = self.sql(expression, "default")
    -1617
    -1618        if default:
    -1619            statements.append(f"ELSE {default}")
    -1620
    -1621        statements.append("END")
    -1622
    -1623        if self.pretty and self.text_width(statements) > self._max_text_width:
    -1624            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    +            
    1616    def case_sql(self, expression: exp.Case) -> str:
    +1617        this = self.sql(expression, "this")
    +1618        statements = [f"CASE {this}" if this else "CASE"]
    +1619
    +1620        for e in expression.args["ifs"]:
    +1621            statements.append(f"WHEN {self.sql(e, 'this')}")
    +1622            statements.append(f"THEN {self.sql(e, 'true')}")
    +1623
    +1624        default = self.sql(expression, "default")
     1625
    -1626        return " ".join(statements)
    +1626        if default:
    +1627            statements.append(f"ELSE {default}")
    +1628
    +1629        statements.append("END")
    +1630
    +1631        if self.pretty and self.text_width(statements) > self._max_text_width:
    +1632            return self.indent("\n".join(statements), skip_first=True, skip_last=True)
    +1633
    +1634        return " ".join(statements)
     
    @@ -8555,10 +8592,31 @@ Default: True
    -
    1628    def constraint_sql(self, expression: exp.Constraint) -> str:
    -1629        this = self.sql(expression, "this")
    -1630        expressions = self.expressions(expression, flat=True)
    -1631        return f"CONSTRAINT {this} {expressions}"
    +            
    1636    def constraint_sql(self, expression: exp.Constraint) -> str:
    +1637        this = self.sql(expression, "this")
    +1638        expressions = self.expressions(expression, flat=True)
    +1639        return f"CONSTRAINT {this} {expressions}"
    +
    + + + + +
    +
    + +
    + + def + nextvaluefor_sql(self, expression: sqlglot.expressions.NextValueFor) -> str: + + + +
    + +
    1641    def nextvaluefor_sql(self, expression: exp.NextValueFor) -> str:
    +1642        order = expression.args.get("order")
    +1643        order = f" OVER ({self.order_sql(order, flat=True)})" if order else ""
    +1644        return f"NEXT VALUE FOR {self.sql(expression, 'this')}{order}"
     
    @@ -8576,10 +8634,10 @@ Default: True
    -
    1633    def extract_sql(self, expression: exp.Extract) -> str:
    -1634        this = self.sql(expression, "this")
    -1635        expression_sql = self.sql(expression, "expression")
    -1636        return f"EXTRACT({this} FROM {expression_sql})"
    +            
    1646    def extract_sql(self, expression: exp.Extract) -> str:
    +1647        this = self.sql(expression, "this")
    +1648        expression_sql = self.sql(expression, "expression")
    +1649        return f"EXTRACT({this} FROM {expression_sql})"
     
    @@ -8597,15 +8655,15 @@ Default: True
    -
    1638    def trim_sql(self, expression: exp.Trim) -> str:
    -1639        trim_type = self.sql(expression, "position")
    -1640
    -1641        if trim_type == "LEADING":
    -1642            return self.func("LTRIM", expression.this)
    -1643        elif trim_type == "TRAILING":
    -1644            return self.func("RTRIM", expression.this)
    -1645        else:
    -1646            return self.func("TRIM", expression.this, expression.expression)
    +            
    1651    def trim_sql(self, expression: exp.Trim) -> str:
    +1652        trim_type = self.sql(expression, "position")
    +1653
    +1654        if trim_type == "LEADING":
    +1655            return self.func("LTRIM", expression.this)
    +1656        elif trim_type == "TRAILING":
    +1657            return self.func("RTRIM", expression.this)
    +1658        else:
    +1659            return self.func("TRIM", expression.this, expression.expression)
     
    @@ -8623,10 +8681,10 @@ Default: True
    -
    1648    def concat_sql(self, expression: exp.Concat) -> str:
    -1649        if len(expression.expressions) == 1:
    -1650            return self.sql(expression.expressions[0])
    -1651        return self.function_fallback_sql(expression)
    +            
    1661    def concat_sql(self, expression: exp.Concat) -> str:
    +1662        if len(expression.expressions) == 1:
    +1663            return self.sql(expression.expressions[0])
    +1664        return self.function_fallback_sql(expression)
     
    @@ -8644,9 +8702,9 @@ Default: True
    -
    1653    def check_sql(self, expression: exp.Check) -> str:
    -1654        this = self.sql(expression, key="this")
    -1655        return f"CHECK ({this})"
    +            
    1666    def check_sql(self, expression: exp.Check) -> str:
    +1667        this = self.sql(expression, key="this")
    +1668        return f"CHECK ({this})"
     
    @@ -8664,15 +8722,15 @@ Default: True
    -
    1657    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    -1658        expressions = self.expressions(expression, flat=True)
    -1659        reference = self.sql(expression, "reference")
    -1660        reference = f" {reference}" if reference else ""
    -1661        delete = self.sql(expression, "delete")
    -1662        delete = f" ON DELETE {delete}" if delete else ""
    -1663        update = self.sql(expression, "update")
    -1664        update = f" ON UPDATE {update}" if update else ""
    -1665        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
    +            
    1670    def foreignkey_sql(self, expression: exp.ForeignKey) -> str:
    +1671        expressions = self.expressions(expression, flat=True)
    +1672        reference = self.sql(expression, "reference")
    +1673        reference = f" {reference}" if reference else ""
    +1674        delete = self.sql(expression, "delete")
    +1675        delete = f" ON DELETE {delete}" if delete else ""
    +1676        update = self.sql(expression, "update")
    +1677        update = f" ON UPDATE {update}" if update else ""
    +1678        return f"FOREIGN KEY ({expressions}){reference}{delete}{update}"
     
    @@ -8690,11 +8748,11 @@ Default: True
    -
    1667    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    -1668        expressions = self.expressions(expression, flat=True)
    -1669        options = self.expressions(expression, key="options", flat=True, sep=" ")
    -1670        options = f" {options}" if options else ""
    -1671        return f"PRIMARY KEY ({expressions}){options}"
    +            
    1680    def primarykey_sql(self, expression: exp.ForeignKey) -> str:
    +1681        expressions = self.expressions(expression, flat=True)
    +1682        options = self.expressions(expression, key="options", flat=True, sep=" ")
    +1683        options = f" {options}" if options else ""
    +1684        return f"PRIMARY KEY ({expressions}){options}"
     
    @@ -8712,9 +8770,9 @@ Default: True
    -
    1673    def unique_sql(self, expression: exp.Unique) -> str:
    -1674        columns = self.expressions(expression, key="expressions")
    -1675        return f"UNIQUE ({columns})"
    +            
    1686    def unique_sql(self, expression: exp.Unique) -> str:
    +1687        columns = self.expressions(expression, key="expressions")
    +1688        return f"UNIQUE ({columns})"
     
    @@ -8732,10 +8790,10 @@ Default: True
    -
    1677    def if_sql(self, expression: exp.If) -> str:
    -1678        return self.case_sql(
    -1679            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    -1680        )
    +            
    1690    def if_sql(self, expression: exp.If) -> str:
    +1691        return self.case_sql(
    +1692            exp.Case(ifs=[expression.copy()], default=expression.args.get("false"))
    +1693        )
     
    @@ -8753,10 +8811,10 @@ Default: True
    -
    1682    def matchagainst_sql(self, expression: exp.MatchAgainst) -> str:
    -1683        modifier = expression.args.get("modifier")
    -1684        modifier = f" {modifier}" if modifier else ""
    -1685        return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})"
    +            
    1695    def matchagainst_sql(self, expression: exp.MatchAgainst) -> str:
    +1696        modifier = expression.args.get("modifier")
    +1697        modifier = f" {modifier}" if modifier else ""
    +1698        return f"{self.func('MATCH', *expression.expressions)} AGAINST({self.sql(expression, 'this')}{modifier})"
     
    @@ -8774,8 +8832,8 @@ Default: True
    -
    1687    def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str:
    -1688        return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}"
    +            
    1700    def jsonkeyvalue_sql(self, expression: exp.JSONKeyValue) -> str:
    +1701        return f"{self.sql(expression, 'this')}: {self.sql(expression, 'expression')}"
     
    @@ -8793,21 +8851,21 @@ Default: True
    -
    1690    def jsonobject_sql(self, expression: exp.JSONObject) -> str:
    -1691        expressions = self.expressions(expression)
    -1692        null_handling = expression.args.get("null_handling")
    -1693        null_handling = f" {null_handling}" if null_handling else ""
    -1694        unique_keys = expression.args.get("unique_keys")
    -1695        if unique_keys is not None:
    -1696            unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS"
    -1697        else:
    -1698            unique_keys = ""
    -1699        return_type = self.sql(expression, "return_type")
    -1700        return_type = f" RETURNING {return_type}" if return_type else ""
    -1701        format_json = " FORMAT JSON" if expression.args.get("format_json") else ""
    -1702        encoding = self.sql(expression, "encoding")
    -1703        encoding = f" ENCODING {encoding}" if encoding else ""
    -1704        return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})"
    +            
    1703    def jsonobject_sql(self, expression: exp.JSONObject) -> str:
    +1704        expressions = self.expressions(expression)
    +1705        null_handling = expression.args.get("null_handling")
    +1706        null_handling = f" {null_handling}" if null_handling else ""
    +1707        unique_keys = expression.args.get("unique_keys")
    +1708        if unique_keys is not None:
    +1709            unique_keys = f" {'WITH' if unique_keys else 'WITHOUT'} UNIQUE KEYS"
    +1710        else:
    +1711            unique_keys = ""
    +1712        return_type = self.sql(expression, "return_type")
    +1713        return_type = f" RETURNING {return_type}" if return_type else ""
    +1714        format_json = " FORMAT JSON" if expression.args.get("format_json") else ""
    +1715        encoding = self.sql(expression, "encoding")
    +1716        encoding = f" ENCODING {encoding}" if encoding else ""
    +1717        return f"JSON_OBJECT({expressions}{null_handling}{unique_keys}{return_type}{format_json}{encoding})"
     
    @@ -8825,22 +8883,22 @@ Default: True
    -
    1706    def in_sql(self, expression: exp.In) -> str:
    -1707        query = expression.args.get("query")
    -1708        unnest = expression.args.get("unnest")
    -1709        field = expression.args.get("field")
    -1710        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    -1711
    -1712        if query:
    -1713            in_sql = self.wrap(query)
    -1714        elif unnest:
    -1715            in_sql = self.in_unnest_op(unnest)
    -1716        elif field:
    -1717            in_sql = self.sql(field)
    -1718        else:
    -1719            in_sql = f"({self.expressions(expression, flat=True)})"
    -1720
    -1721        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
    +            
    1719    def in_sql(self, expression: exp.In) -> str:
    +1720        query = expression.args.get("query")
    +1721        unnest = expression.args.get("unnest")
    +1722        field = expression.args.get("field")
    +1723        is_global = " GLOBAL" if expression.args.get("is_global") else ""
    +1724
    +1725        if query:
    +1726            in_sql = self.wrap(query)
    +1727        elif unnest:
    +1728            in_sql = self.in_unnest_op(unnest)
    +1729        elif field:
    +1730            in_sql = self.sql(field)
    +1731        else:
    +1732            in_sql = f"({self.expressions(expression, flat=True)})"
    +1733
    +1734        return f"{self.sql(expression, 'this')}{is_global} IN {in_sql}"
     
    @@ -8858,8 +8916,8 @@ Default: True
    -
    1723    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    -1724        return f"(SELECT {self.sql(unnest)})"
    +            
    1736    def in_unnest_op(self, unnest: exp.Unnest) -> str:
    +1737        return f"(SELECT {self.sql(unnest)})"
     
    @@ -8877,22 +8935,22 @@ Default: True
    -
    1726    def interval_sql(self, expression: exp.Interval) -> str:
    -1727        unit = self.sql(expression, "unit")
    -1728        if not self.INTERVAL_ALLOWS_PLURAL_FORM:
    -1729            unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit)
    -1730        unit = f" {unit}" if unit else ""
    -1731
    -1732        if self.SINGLE_STRING_INTERVAL:
    -1733            this = expression.this.name if expression.this else ""
    -1734            return f"INTERVAL '{this}{unit}'"
    -1735
    -1736        this = self.sql(expression, "this")
    -1737        if this:
    -1738            unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES)
    -1739            this = f" {this}" if unwrapped else f" ({this})"
    -1740
    -1741        return f"INTERVAL{this}{unit}"
    +            
    1739    def interval_sql(self, expression: exp.Interval) -> str:
    +1740        unit = self.sql(expression, "unit")
    +1741        if not self.INTERVAL_ALLOWS_PLURAL_FORM:
    +1742            unit = self.TIME_PART_SINGULARS.get(unit.lower(), unit)
    +1743        unit = f" {unit}" if unit else ""
    +1744
    +1745        if self.SINGLE_STRING_INTERVAL:
    +1746            this = expression.this.name if expression.this else ""
    +1747            return f"INTERVAL '{this}{unit}'"
    +1748
    +1749        this = self.sql(expression, "this")
    +1750        if this:
    +1751            unwrapped = isinstance(expression.this, self.UNWRAPPED_INTERVAL_VALUES)
    +1752            this = f" {this}" if unwrapped else f" ({this})"
    +1753
    +1754        return f"INTERVAL{this}{unit}"
     
    @@ -8910,8 +8968,8 @@ Default: True
    -
    1743    def return_sql(self, expression: exp.Return) -> str:
    -1744        return f"RETURN {self.sql(expression, 'this')}"
    +            
    1756    def return_sql(self, expression: exp.Return) -> str:
    +1757        return f"RETURN {self.sql(expression, 'this')}"
     
    @@ -8929,13 +8987,13 @@ Default: True
    -
    1746    def reference_sql(self, expression: exp.Reference) -> str:
    -1747        this = self.sql(expression, "this")
    -1748        expressions = self.expressions(expression, flat=True)
    -1749        expressions = f"({expressions})" if expressions else ""
    -1750        options = self.expressions(expression, key="options", flat=True, sep=" ")
    -1751        options = f" {options}" if options else ""
    -1752        return f"REFERENCES {this}{expressions}{options}"
    +            
    1759    def reference_sql(self, expression: exp.Reference) -> str:
    +1760        this = self.sql(expression, "this")
    +1761        expressions = self.expressions(expression, flat=True)
    +1762        expressions = f"({expressions})" if expressions else ""
    +1763        options = self.expressions(expression, key="options", flat=True, sep=" ")
    +1764        options = f" {options}" if options else ""
    +1765        return f"REFERENCES {this}{expressions}{options}"
     
    @@ -8953,8 +9011,8 @@ Default: True
    -
    1754    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    -1755        return self.func(expression.name, *expression.expressions)
    +            
    1767    def anonymous_sql(self, expression: exp.Anonymous) -> str:
    +1768        return self.func(expression.name, *expression.expressions)
     
    @@ -8972,14 +9030,14 @@ Default: True
    -
    1757    def paren_sql(self, expression: exp.Paren) -> str:
    -1758        if isinstance(expression.unnest(), exp.Select):
    -1759            sql = self.wrap(expression)
    -1760        else:
    -1761            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    -1762            sql = f"({sql}{self.seg(')', sep='')}"
    -1763
    -1764        return self.prepend_ctes(expression, sql)
    +            
    1770    def paren_sql(self, expression: exp.Paren) -> str:
    +1771        if isinstance(expression.unnest(), exp.Select):
    +1772            sql = self.wrap(expression)
    +1773        else:
    +1774            sql = self.seg(self.indent(self.sql(expression, "this")), sep="")
    +1775            sql = f"({sql}{self.seg(')', sep='')}"
    +1776
    +1777        return self.prepend_ctes(expression, sql)
     
    @@ -8997,11 +9055,11 @@ Default: True
    -
    1766    def neg_sql(self, expression: exp.Neg) -> str:
    -1767        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    -1768        this_sql = self.sql(expression, "this")
    -1769        sep = " " if this_sql[0] == "-" else ""
    -1770        return f"-{sep}{this_sql}"
    +            
    1779    def neg_sql(self, expression: exp.Neg) -> str:
    +1780        # This makes sure we don't convert "- - 5" to "--5", which is a comment
    +1781        this_sql = self.sql(expression, "this")
    +1782        sep = " " if this_sql[0] == "-" else ""
    +1783        return f"-{sep}{this_sql}"
     
    @@ -9019,8 +9077,8 @@ Default: True
    -
    1772    def not_sql(self, expression: exp.Not) -> str:
    -1773        return f"NOT {self.sql(expression, 'this')}"
    +            
    1785    def not_sql(self, expression: exp.Not) -> str:
    +1786        return f"NOT {self.sql(expression, 'this')}"
     
    @@ -9038,10 +9096,10 @@ Default: True
    -
    1775    def alias_sql(self, expression: exp.Alias) -> str:
    -1776        alias = self.sql(expression, "alias")
    -1777        alias = f" AS {alias}" if alias else ""
    -1778        return f"{self.sql(expression, 'this')}{alias}"
    +            
    1788    def alias_sql(self, expression: exp.Alias) -> str:
    +1789        alias = self.sql(expression, "alias")
    +1790        alias = f" AS {alias}" if alias else ""
    +1791        return f"{self.sql(expression, 'this')}{alias}"
     
    @@ -9059,8 +9117,8 @@ Default: True
    -
    1780    def aliases_sql(self, expression: exp.Aliases) -> str:
    -1781        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
    +            
    1793    def aliases_sql(self, expression: exp.Aliases) -> str:
    +1794        return f"{self.sql(expression, 'this')} AS ({self.expressions(expression, flat=True)})"
     
    @@ -9078,10 +9136,10 @@ Default: True
    -
    1783    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    -1784        this = self.sql(expression, "this")
    -1785        zone = self.sql(expression, "zone")
    -1786        return f"{this} AT TIME ZONE {zone}"
    +            
    1796    def attimezone_sql(self, expression: exp.AtTimeZone) -> str:
    +1797        this = self.sql(expression, "this")
    +1798        zone = self.sql(expression, "zone")
    +1799        return f"{this} AT TIME ZONE {zone}"
     
    @@ -9099,8 +9157,8 @@ Default: True
    -
    1788    def add_sql(self, expression: exp.Add) -> str:
    -1789        return self.binary(expression, "+")
    +            
    1801    def add_sql(self, expression: exp.Add) -> str:
    +1802        return self.binary(expression, "+")
     
    @@ -9118,8 +9176,8 @@ Default: True
    -
    1791    def and_sql(self, expression: exp.And) -> str:
    -1792        return self.connector_sql(expression, "AND")
    +            
    1804    def and_sql(self, expression: exp.And) -> str:
    +1805        return self.connector_sql(expression, "AND")
     
    @@ -9137,17 +9195,17 @@ Default: True
    -
    1794    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    -1795        if not self.pretty:
    -1796            return self.binary(expression, op)
    -1797
    -1798        sqls = tuple(
    -1799            self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e)
    -1800            for i, e in enumerate(expression.flatten(unnest=False))
    -1801        )
    -1802
    -1803        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    -1804        return f"{sep}{op} ".join(sqls)
    +            
    1807    def connector_sql(self, expression: exp.Connector, op: str) -> str:
    +1808        if not self.pretty:
    +1809            return self.binary(expression, op)
    +1810
    +1811        sqls = tuple(
    +1812            self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e)
    +1813            for i, e in enumerate(expression.flatten(unnest=False))
    +1814        )
    +1815
    +1816        sep = "\n" if self.text_width(sqls) > self._max_text_width else " "
    +1817        return f"{sep}{op} ".join(sqls)
     
    @@ -9165,8 +9223,8 @@ Default: True
    -
    1806    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    -1807        return self.binary(expression, "&")
    +            
    1819    def bitwiseand_sql(self, expression: exp.BitwiseAnd) -> str:
    +1820        return self.binary(expression, "&")
     
    @@ -9184,8 +9242,8 @@ Default: True
    -
    1809    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    -1810        return self.binary(expression, "<<")
    +            
    1822    def bitwiseleftshift_sql(self, expression: exp.BitwiseLeftShift) -> str:
    +1823        return self.binary(expression, "<<")
     
    @@ -9203,8 +9261,8 @@ Default: True
    -
    1812    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    -1813        return f"~{self.sql(expression, 'this')}"
    +            
    1825    def bitwisenot_sql(self, expression: exp.BitwiseNot) -> str:
    +1826        return f"~{self.sql(expression, 'this')}"
     
    @@ -9222,8 +9280,8 @@ Default: True
    -
    1815    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    -1816        return self.binary(expression, "|")
    +            
    1828    def bitwiseor_sql(self, expression: exp.BitwiseOr) -> str:
    +1829        return self.binary(expression, "|")
     
    @@ -9241,8 +9299,8 @@ Default: True
    -
    1818    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    -1819        return self.binary(expression, ">>")
    +            
    1831    def bitwiserightshift_sql(self, expression: exp.BitwiseRightShift) -> str:
    +1832        return self.binary(expression, ">>")
     
    @@ -9260,8 +9318,8 @@ Default: True
    -
    1821    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    -1822        return self.binary(expression, "^")
    +            
    1834    def bitwisexor_sql(self, expression: exp.BitwiseXor) -> str:
    +1835        return self.binary(expression, "^")
     
    @@ -9279,8 +9337,8 @@ Default: True
    -
    1824    def cast_sql(self, expression: exp.Cast) -> str:
    -1825        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    1837    def cast_sql(self, expression: exp.Cast) -> str:
    +1838        return f"CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -9298,9 +9356,9 @@ Default: True
    -
    1827    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    -1828        zone = self.sql(expression, "this")
    -1829        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
    +            
    1840    def currentdate_sql(self, expression: exp.CurrentDate) -> str:
    +1841        zone = self.sql(expression, "this")
    +1842        return f"CURRENT_DATE({zone})" if zone else "CURRENT_DATE"
     
    @@ -9318,8 +9376,8 @@ Default: True
    -
    1831    def collate_sql(self, expression: exp.Collate) -> str:
    -1832        return self.binary(expression, "COLLATE")
    +            
    1844    def collate_sql(self, expression: exp.Collate) -> str:
    +1845        return self.binary(expression, "COLLATE")
     
    @@ -9337,8 +9395,8 @@ Default: True
    -
    1834    def command_sql(self, expression: exp.Command) -> str:
    -1835        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
    +            
    1847    def command_sql(self, expression: exp.Command) -> str:
    +1848        return f"{self.sql(expression, 'this').upper()} {expression.text('expression').strip()}"
     
    @@ -9356,12 +9414,12 @@ Default: True
    -
    1837    def comment_sql(self, expression: exp.Comment) -> str:
    -1838        this = self.sql(expression, "this")
    -1839        kind = expression.args["kind"]
    -1840        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    -1841        expression_sql = self.sql(expression, "expression")
    -1842        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
    +            
    1850    def comment_sql(self, expression: exp.Comment) -> str:
    +1851        this = self.sql(expression, "this")
    +1852        kind = expression.args["kind"]
    +1853        exists_sql = " IF EXISTS " if expression.args.get("exists") else " "
    +1854        expression_sql = self.sql(expression, "expression")
    +1855        return f"COMMENT{exists_sql}ON {kind} {this} IS {expression_sql}"
     
    @@ -9379,8 +9437,8 @@ Default: True
    -
    1844    def transaction_sql(self, expression: exp.Transaction) -> str:
    -1845        return "BEGIN"
    +            
    1857    def transaction_sql(self, expression: exp.Transaction) -> str:
    +1858        return "BEGIN"
     
    @@ -9398,12 +9456,12 @@ Default: True
    -
    1847    def commit_sql(self, expression: exp.Commit) -> str:
    -1848        chain = expression.args.get("chain")
    -1849        if chain is not None:
    -1850            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    -1851
    -1852        return f"COMMIT{chain or ''}"
    +            
    1860    def commit_sql(self, expression: exp.Commit) -> str:
    +1861        chain = expression.args.get("chain")
    +1862        if chain is not None:
    +1863            chain = " AND CHAIN" if chain else " AND NO CHAIN"
    +1864
    +1865        return f"COMMIT{chain or ''}"
     
    @@ -9421,10 +9479,10 @@ Default: True
    -
    1854    def rollback_sql(self, expression: exp.Rollback) -> str:
    -1855        savepoint = expression.args.get("savepoint")
    -1856        savepoint = f" TO {savepoint}" if savepoint else ""
    -1857        return f"ROLLBACK{savepoint}"
    +            
    1867    def rollback_sql(self, expression: exp.Rollback) -> str:
    +1868        savepoint = expression.args.get("savepoint")
    +1869        savepoint = f" TO {savepoint}" if savepoint else ""
    +1870        return f"ROLLBACK{savepoint}"
     
    @@ -9442,25 +9500,25 @@ Default: True
    -
    1859    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    -1860        this = self.sql(expression, "this")
    -1861
    -1862        dtype = self.sql(expression, "dtype")
    -1863        if dtype:
    -1864            collate = self.sql(expression, "collate")
    -1865            collate = f" COLLATE {collate}" if collate else ""
    -1866            using = self.sql(expression, "using")
    -1867            using = f" USING {using}" if using else ""
    -1868            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    -1869
    -1870        default = self.sql(expression, "default")
    -1871        if default:
    -1872            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    -1873
    -1874        if not expression.args.get("drop"):
    -1875            self.unsupported("Unsupported ALTER COLUMN syntax")
    -1876
    -1877        return f"ALTER COLUMN {this} DROP DEFAULT"
    +            
    1872    def altercolumn_sql(self, expression: exp.AlterColumn) -> str:
    +1873        this = self.sql(expression, "this")
    +1874
    +1875        dtype = self.sql(expression, "dtype")
    +1876        if dtype:
    +1877            collate = self.sql(expression, "collate")
    +1878            collate = f" COLLATE {collate}" if collate else ""
    +1879            using = self.sql(expression, "using")
    +1880            using = f" USING {using}" if using else ""
    +1881            return f"ALTER COLUMN {this} TYPE {dtype}{collate}{using}"
    +1882
    +1883        default = self.sql(expression, "default")
    +1884        if default:
    +1885            return f"ALTER COLUMN {this} SET DEFAULT {default}"
    +1886
    +1887        if not expression.args.get("drop"):
    +1888            self.unsupported("Unsupported ALTER COLUMN syntax")
    +1889
    +1890        return f"ALTER COLUMN {this} DROP DEFAULT"
     
    @@ -9478,9 +9536,9 @@ Default: True
    -
    1879    def renametable_sql(self, expression: exp.RenameTable) -> str:
    -1880        this = self.sql(expression, "this")
    -1881        return f"RENAME TO {this}"
    +            
    1892    def renametable_sql(self, expression: exp.RenameTable) -> str:
    +1893        this = self.sql(expression, "this")
    +1894        return f"RENAME TO {this}"
     
    @@ -9498,20 +9556,20 @@ Default: True
    -
    1883    def altertable_sql(self, expression: exp.AlterTable) -> str:
    -1884        actions = expression.args["actions"]
    -1885
    -1886        if isinstance(actions[0], exp.ColumnDef):
    -1887            actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ")
    -1888        elif isinstance(actions[0], exp.Schema):
    -1889            actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ")
    -1890        elif isinstance(actions[0], exp.Delete):
    -1891            actions = self.expressions(expression, key="actions", flat=True)
    -1892        else:
    -1893            actions = self.expressions(expression, key="actions")
    -1894
    -1895        exists = " IF EXISTS" if expression.args.get("exists") else ""
    -1896        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
    +            
    1896    def altertable_sql(self, expression: exp.AlterTable) -> str:
    +1897        actions = expression.args["actions"]
    +1898
    +1899        if isinstance(actions[0], exp.ColumnDef):
    +1900            actions = self.expressions(expression, key="actions", prefix="ADD COLUMN ")
    +1901        elif isinstance(actions[0], exp.Schema):
    +1902            actions = self.expressions(expression, key="actions", prefix="ADD COLUMNS ")
    +1903        elif isinstance(actions[0], exp.Delete):
    +1904            actions = self.expressions(expression, key="actions", flat=True)
    +1905        else:
    +1906            actions = self.expressions(expression, key="actions")
    +1907
    +1908        exists = " IF EXISTS" if expression.args.get("exists") else ""
    +1909        return f"ALTER TABLE{exists} {self.sql(expression, 'this')} {actions}"
     
    @@ -9529,10 +9587,10 @@ Default: True
    -
    1898    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    -1899        expressions = self.expressions(expression)
    -1900        exists = " IF EXISTS " if expression.args.get("exists") else " "
    -1901        return f"DROP{exists}{expressions}"
    +            
    1911    def droppartition_sql(self, expression: exp.DropPartition) -> str:
    +1912        expressions = self.expressions(expression)
    +1913        exists = " IF EXISTS " if expression.args.get("exists") else " "
    +1914        return f"DROP{exists}{expressions}"
     
    @@ -9550,16 +9608,16 @@ Default: True
    -
    1903    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    -1904        this = self.sql(expression, "this")
    -1905        expression_ = self.sql(expression, "expression")
    -1906        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    -1907
    -1908        enforced = expression.args.get("enforced")
    -1909        if enforced is not None:
    -1910            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    -1911
    -1912        return f"{add_constraint} {expression_}"
    +            
    1916    def addconstraint_sql(self, expression: exp.AddConstraint) -> str:
    +1917        this = self.sql(expression, "this")
    +1918        expression_ = self.sql(expression, "expression")
    +1919        add_constraint = f"ADD CONSTRAINT {this}" if this else "ADD"
    +1920
    +1921        enforced = expression.args.get("enforced")
    +1922        if enforced is not None:
    +1923            return f"{add_constraint} CHECK ({expression_}){' ENFORCED' if enforced else ''}"
    +1924
    +1925        return f"{add_constraint} {expression_}"
     
    @@ -9577,13 +9635,13 @@ Default: True
    -
    1914    def distinct_sql(self, expression: exp.Distinct) -> str:
    -1915        this = self.expressions(expression, flat=True)
    -1916        this = f" {this}" if this else ""
    -1917
    -1918        on = self.sql(expression, "on")
    -1919        on = f" ON {on}" if on else ""
    -1920        return f"DISTINCT{this}{on}"
    +            
    1927    def distinct_sql(self, expression: exp.Distinct) -> str:
    +1928        this = self.expressions(expression, flat=True)
    +1929        this = f" {this}" if this else ""
    +1930
    +1931        on = self.sql(expression, "on")
    +1932        on = f" ON {on}" if on else ""
    +1933        return f"DISTINCT{this}{on}"
     
    @@ -9601,8 +9659,8 @@ Default: True
    -
    1922    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    -1923        return f"{self.sql(expression, 'this')} IGNORE NULLS"
    +            
    1935    def ignorenulls_sql(self, expression: exp.IgnoreNulls) -> str:
    +1936        return f"{self.sql(expression, 'this')} IGNORE NULLS"
     
    @@ -9620,8 +9678,8 @@ Default: True
    -
    1925    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    -1926        return f"{self.sql(expression, 'this')} RESPECT NULLS"
    +            
    1938    def respectnulls_sql(self, expression: exp.RespectNulls) -> str:
    +1939        return f"{self.sql(expression, 'this')} RESPECT NULLS"
     
    @@ -9639,13 +9697,13 @@ Default: True
    -
    1928    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    -1929        return self.sql(
    -1930            exp.Cast(
    -1931                this=exp.Div(this=expression.this, expression=expression.expression),
    -1932                to=exp.DataType(this=exp.DataType.Type.INT),
    -1933            )
    -1934        )
    +            
    1941    def intdiv_sql(self, expression: exp.IntDiv) -> str:
    +1942        return self.sql(
    +1943            exp.Cast(
    +1944                this=exp.Div(this=expression.this, expression=expression.expression),
    +1945                to=exp.DataType(this=exp.DataType.Type.INT),
    +1946            )
    +1947        )
     
    @@ -9663,8 +9721,8 @@ Default: True
    -
    1936    def dpipe_sql(self, expression: exp.DPipe) -> str:
    -1937        return self.binary(expression, "||")
    +            
    1949    def dpipe_sql(self, expression: exp.DPipe) -> str:
    +1950        return self.binary(expression, "||")
     
    @@ -9682,8 +9740,8 @@ Default: True
    -
    1939    def div_sql(self, expression: exp.Div) -> str:
    -1940        return self.binary(expression, "/")
    +            
    1952    def div_sql(self, expression: exp.Div) -> str:
    +1953        return self.binary(expression, "/")
     
    @@ -9701,8 +9759,8 @@ Default: True
    -
    1942    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    -1943        return self.binary(expression, "OVERLAPS")
    +            
    1955    def overlaps_sql(self, expression: exp.Overlaps) -> str:
    +1956        return self.binary(expression, "OVERLAPS")
     
    @@ -9720,8 +9778,8 @@ Default: True
    -
    1945    def distance_sql(self, expression: exp.Distance) -> str:
    -1946        return self.binary(expression, "<->")
    +            
    1958    def distance_sql(self, expression: exp.Distance) -> str:
    +1959        return self.binary(expression, "<->")
     
    @@ -9739,8 +9797,8 @@ Default: True
    -
    1948    def dot_sql(self, expression: exp.Dot) -> str:
    -1949        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
    +            
    1961    def dot_sql(self, expression: exp.Dot) -> str:
    +1962        return f"{self.sql(expression, 'this')}.{self.sql(expression, 'expression')}"
     
    @@ -9758,8 +9816,8 @@ Default: True
    -
    1951    def eq_sql(self, expression: exp.EQ) -> str:
    -1952        return self.binary(expression, "=")
    +            
    1964    def eq_sql(self, expression: exp.EQ) -> str:
    +1965        return self.binary(expression, "=")
     
    @@ -9777,8 +9835,8 @@ Default: True
    -
    1954    def escape_sql(self, expression: exp.Escape) -> str:
    -1955        return self.binary(expression, "ESCAPE")
    +            
    1967    def escape_sql(self, expression: exp.Escape) -> str:
    +1968        return self.binary(expression, "ESCAPE")
     
    @@ -9796,8 +9854,8 @@ Default: True
    -
    1957    def glob_sql(self, expression: exp.Glob) -> str:
    -1958        return self.binary(expression, "GLOB")
    +            
    1970    def glob_sql(self, expression: exp.Glob) -> str:
    +1971        return self.binary(expression, "GLOB")
     
    @@ -9815,8 +9873,8 @@ Default: True
    -
    1960    def gt_sql(self, expression: exp.GT) -> str:
    -1961        return self.binary(expression, ">")
    +            
    1973    def gt_sql(self, expression: exp.GT) -> str:
    +1974        return self.binary(expression, ">")
     
    @@ -9834,8 +9892,8 @@ Default: True
    -
    1963    def gte_sql(self, expression: exp.GTE) -> str:
    -1964        return self.binary(expression, ">=")
    +            
    1976    def gte_sql(self, expression: exp.GTE) -> str:
    +1977        return self.binary(expression, ">=")
     
    @@ -9853,8 +9911,8 @@ Default: True
    -
    1966    def ilike_sql(self, expression: exp.ILike) -> str:
    -1967        return self.binary(expression, "ILIKE")
    +            
    1979    def ilike_sql(self, expression: exp.ILike) -> str:
    +1980        return self.binary(expression, "ILIKE")
     
    @@ -9872,8 +9930,8 @@ Default: True
    -
    1969    def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    -1970        return self.binary(expression, "ILIKE ANY")
    +            
    1982    def ilikeany_sql(self, expression: exp.ILikeAny) -> str:
    +1983        return self.binary(expression, "ILIKE ANY")
     
    @@ -9891,8 +9949,8 @@ Default: True
    -
    1972    def is_sql(self, expression: exp.Is) -> str:
    -1973        return self.binary(expression, "IS")
    +            
    1985    def is_sql(self, expression: exp.Is) -> str:
    +1986        return self.binary(expression, "IS")
     
    @@ -9910,8 +9968,8 @@ Default: True
    -
    1975    def like_sql(self, expression: exp.Like) -> str:
    -1976        return self.binary(expression, "LIKE")
    +            
    1988    def like_sql(self, expression: exp.Like) -> str:
    +1989        return self.binary(expression, "LIKE")
     
    @@ -9929,8 +9987,8 @@ Default: True
    -
    1978    def likeany_sql(self, expression: exp.LikeAny) -> str:
    -1979        return self.binary(expression, "LIKE ANY")
    +            
    1991    def likeany_sql(self, expression: exp.LikeAny) -> str:
    +1992        return self.binary(expression, "LIKE ANY")
     
    @@ -9948,8 +10006,8 @@ Default: True
    -
    1981    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    -1982        return self.binary(expression, "SIMILAR TO")
    +            
    1994    def similarto_sql(self, expression: exp.SimilarTo) -> str:
    +1995        return self.binary(expression, "SIMILAR TO")
     
    @@ -9967,8 +10025,8 @@ Default: True
    -
    1984    def lt_sql(self, expression: exp.LT) -> str:
    -1985        return self.binary(expression, "<")
    +            
    1997    def lt_sql(self, expression: exp.LT) -> str:
    +1998        return self.binary(expression, "<")
     
    @@ -9986,8 +10044,8 @@ Default: True
    -
    1987    def lte_sql(self, expression: exp.LTE) -> str:
    -1988        return self.binary(expression, "<=")
    +            
    2000    def lte_sql(self, expression: exp.LTE) -> str:
    +2001        return self.binary(expression, "<=")
     
    @@ -10005,8 +10063,8 @@ Default: True
    -
    1990    def mod_sql(self, expression: exp.Mod) -> str:
    -1991        return self.binary(expression, "%")
    +            
    2003    def mod_sql(self, expression: exp.Mod) -> str:
    +2004        return self.binary(expression, "%")
     
    @@ -10024,8 +10082,8 @@ Default: True
    -
    1993    def mul_sql(self, expression: exp.Mul) -> str:
    -1994        return self.binary(expression, "*")
    +            
    2006    def mul_sql(self, expression: exp.Mul) -> str:
    +2007        return self.binary(expression, "*")
     
    @@ -10043,8 +10101,8 @@ Default: True
    -
    1996    def neq_sql(self, expression: exp.NEQ) -> str:
    -1997        return self.binary(expression, "<>")
    +            
    2009    def neq_sql(self, expression: exp.NEQ) -> str:
    +2010        return self.binary(expression, "<>")
     
    @@ -10062,8 +10120,8 @@ Default: True
    -
    1999    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    -2000        return self.binary(expression, "IS NOT DISTINCT FROM")
    +            
    2012    def nullsafeeq_sql(self, expression: exp.NullSafeEQ) -> str:
    +2013        return self.binary(expression, "IS NOT DISTINCT FROM")
     
    @@ -10081,8 +10139,8 @@ Default: True
    -
    2002    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    -2003        return self.binary(expression, "IS DISTINCT FROM")
    +            
    2015    def nullsafeneq_sql(self, expression: exp.NullSafeNEQ) -> str:
    +2016        return self.binary(expression, "IS DISTINCT FROM")
     
    @@ -10100,8 +10158,8 @@ Default: True
    -
    2005    def or_sql(self, expression: exp.Or) -> str:
    -2006        return self.connector_sql(expression, "OR")
    +            
    2018    def or_sql(self, expression: exp.Or) -> str:
    +2019        return self.connector_sql(expression, "OR")
     
    @@ -10119,8 +10177,8 @@ Default: True
    -
    2008    def slice_sql(self, expression: exp.Slice) -> str:
    -2009        return self.binary(expression, ":")
    +            
    2021    def slice_sql(self, expression: exp.Slice) -> str:
    +2022        return self.binary(expression, ":")
     
    @@ -10138,8 +10196,8 @@ Default: True
    -
    2011    def sub_sql(self, expression: exp.Sub) -> str:
    -2012        return self.binary(expression, "-")
    +            
    2024    def sub_sql(self, expression: exp.Sub) -> str:
    +2025        return self.binary(expression, "-")
     
    @@ -10157,8 +10215,8 @@ Default: True
    -
    2014    def trycast_sql(self, expression: exp.TryCast) -> str:
    -2015        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
    +            
    2027    def trycast_sql(self, expression: exp.TryCast) -> str:
    +2028        return f"TRY_CAST({self.sql(expression, 'this')} AS {self.sql(expression, 'to')})"
     
    @@ -10176,12 +10234,12 @@ Default: True
    -
    2017    def use_sql(self, expression: exp.Use) -> str:
    -2018        kind = self.sql(expression, "kind")
    -2019        kind = f" {kind}" if kind else ""
    -2020        this = self.sql(expression, "this")
    -2021        this = f" {this}" if this else ""
    -2022        return f"USE{kind}{this}"
    +            
    2030    def use_sql(self, expression: exp.Use) -> str:
    +2031        kind = self.sql(expression, "kind")
    +2032        kind = f" {kind}" if kind else ""
    +2033        this = self.sql(expression, "this")
    +2034        this = f" {this}" if this else ""
    +2035        return f"USE{kind}{this}"
     
    @@ -10199,9 +10257,9 @@ Default: True
    -
    2024    def binary(self, expression: exp.Binary, op: str) -> str:
    -2025        op = self.maybe_comment(op, comments=expression.comments)
    -2026        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
    +            
    2037    def binary(self, expression: exp.Binary, op: str) -> str:
    +2038        op = self.maybe_comment(op, comments=expression.comments)
    +2039        return f"{self.sql(expression, 'this')} {op} {self.sql(expression, 'expression')}"
     
    @@ -10219,16 +10277,16 @@ Default: True
    -
    2028    def function_fallback_sql(self, expression: exp.Func) -> str:
    -2029        args = []
    -2030        for arg_value in expression.args.values():
    -2031            if isinstance(arg_value, list):
    -2032                for value in arg_value:
    -2033                    args.append(value)
    -2034            else:
    -2035                args.append(arg_value)
    -2036
    -2037        return self.func(expression.sql_name(), *args)
    +            
    2041    def function_fallback_sql(self, expression: exp.Func) -> str:
    +2042        args = []
    +2043        for arg_value in expression.args.values():
    +2044            if isinstance(arg_value, list):
    +2045                for value in arg_value:
    +2046                    args.append(value)
    +2047            else:
    +2048                args.append(arg_value)
    +2049
    +2050        return self.func(expression.sql_name(), *args)
     
    @@ -10246,8 +10304,8 @@ Default: True
    -
    2039    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    -2040        return f"{self.normalize_func(name)}({self.format_args(*args)})"
    +            
    2052    def func(self, name: str, *args: t.Optional[exp.Expression | str]) -> str:
    +2053        return f"{self.normalize_func(name)}({self.format_args(*args)})"
     
    @@ -10265,11 +10323,11 @@ Default: True
    -
    2042    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    -2043        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    -2044        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    -2045            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    -2046        return ", ".join(arg_sqls)
    +            
    2055    def format_args(self, *args: t.Optional[str | exp.Expression]) -> str:
    +2056        arg_sqls = tuple(self.sql(arg) for arg in args if arg is not None)
    +2057        if self.pretty and self.text_width(arg_sqls) > self._max_text_width:
    +2058            return self.indent("\n" + f",\n".join(arg_sqls) + "\n", skip_first=True, skip_last=True)
    +2059        return ", ".join(arg_sqls)
     
    @@ -10287,8 +10345,8 @@ Default: True
    -
    2048    def text_width(self, args: t.Iterable) -> int:
    -2049        return sum(len(arg) for arg in args)
    +            
    2061    def text_width(self, args: t.Iterable) -> int:
    +2062        return sum(len(arg) for arg in args)
     
    @@ -10306,8 +10364,8 @@ Default: True
    -
    2051    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    -2052        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
    +            
    2064    def format_time(self, expression: exp.Expression) -> t.Optional[str]:
    +2065        return format_time(self.sql(expression, "format"), self.time_mapping, self.time_trie)
     
    @@ -10325,47 +10383,47 @@ Default: True
    -
    2054    def expressions(
    -2055        self,
    -2056        expression: t.Optional[exp.Expression] = None,
    -2057        key: t.Optional[str] = None,
    -2058        sqls: t.Optional[t.List[str]] = None,
    -2059        flat: bool = False,
    -2060        indent: bool = True,
    -2061        sep: str = ", ",
    -2062        prefix: str = "",
    -2063    ) -> str:
    -2064        expressions = expression.args.get(key or "expressions") if expression else sqls
    -2065
    -2066        if not expressions:
    -2067            return ""
    -2068
    -2069        if flat:
    -2070            return sep.join(self.sql(e) for e in expressions)
    -2071
    -2072        num_sqls = len(expressions)
    -2073
    -2074        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    -2075        pad = " " * self.pad
    -2076        stripped_sep = sep.strip()
    -2077
    -2078        result_sqls = []
    -2079        for i, e in enumerate(expressions):
    -2080            sql = self.sql(e, comment=False)
    -2081            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    -2082
    -2083            if self.pretty:
    -2084                if self._leading_comma:
    -2085                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    -2086                else:
    -2087                    result_sqls.append(
    -2088                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    -2089                    )
    -2090            else:
    -2091                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    -2092
    -2093        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    -2094        return self.indent(result_sql, skip_first=False) if indent else result_sql
    +            
    2067    def expressions(
    +2068        self,
    +2069        expression: t.Optional[exp.Expression] = None,
    +2070        key: t.Optional[str] = None,
    +2071        sqls: t.Optional[t.List[str]] = None,
    +2072        flat: bool = False,
    +2073        indent: bool = True,
    +2074        sep: str = ", ",
    +2075        prefix: str = "",
    +2076    ) -> str:
    +2077        expressions = expression.args.get(key or "expressions") if expression else sqls
    +2078
    +2079        if not expressions:
    +2080            return ""
    +2081
    +2082        if flat:
    +2083            return sep.join(self.sql(e) for e in expressions)
    +2084
    +2085        num_sqls = len(expressions)
    +2086
    +2087        # These are calculated once in case we have the leading_comma / pretty option set, correspondingly
    +2088        pad = " " * self.pad
    +2089        stripped_sep = sep.strip()
    +2090
    +2091        result_sqls = []
    +2092        for i, e in enumerate(expressions):
    +2093            sql = self.sql(e, comment=False)
    +2094            comments = self.maybe_comment("", e) if isinstance(e, exp.Expression) else ""
    +2095
    +2096            if self.pretty:
    +2097                if self._leading_comma:
    +2098                    result_sqls.append(f"{sep if i > 0 else pad}{prefix}{sql}{comments}")
    +2099                else:
    +2100                    result_sqls.append(
    +2101                        f"{prefix}{sql}{stripped_sep if i + 1 < num_sqls else ''}{comments}"
    +2102                    )
    +2103            else:
    +2104                result_sqls.append(f"{prefix}{sql}{comments}{sep if i + 1 < num_sqls else ''}")
    +2105
    +2106        result_sql = "\n".join(result_sqls) if self.pretty else "".join(result_sqls)
    +2107        return self.indent(result_sql, skip_first=False) if indent else result_sql
     
    @@ -10383,12 +10441,12 @@ Default: True
    -
    2096    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    -2097        flat = flat or isinstance(expression.parent, exp.Properties)
    -2098        expressions_sql = self.expressions(expression, flat=flat)
    -2099        if flat:
    -2100            return f"{op} {expressions_sql}"
    -2101        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
    +            
    2109    def op_expressions(self, op: str, expression: exp.Expression, flat: bool = False) -> str:
    +2110        flat = flat or isinstance(expression.parent, exp.Properties)
    +2111        expressions_sql = self.expressions(expression, flat=flat)
    +2112        if flat:
    +2113            return f"{op} {expressions_sql}"
    +2114        return f"{self.seg(op)}{self.sep() if expressions_sql else ''}{expressions_sql}"
     
    @@ -10406,11 +10464,11 @@ Default: True
    -
    2103    def naked_property(self, expression: exp.Property) -> str:
    -2104        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    -2105        if not property_name:
    -2106            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    -2107        return f"{property_name} {self.sql(expression, 'this')}"
    +            
    2116    def naked_property(self, expression: exp.Property) -> str:
    +2117        property_name = exp.Properties.PROPERTY_TO_NAME.get(expression.__class__)
    +2118        if not property_name:
    +2119            self.unsupported(f"Unsupported property {expression.__class__.__name__}")
    +2120        return f"{property_name} {self.sql(expression, 'this')}"
     
    @@ -10428,12 +10486,12 @@ Default: True
    -
    2109    def set_operation(self, expression: exp.Expression, op: str) -> str:
    -2110        this = self.sql(expression, "this")
    -2111        op = self.seg(op)
    -2112        return self.query_modifiers(
    -2113            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    -2114        )
    +            
    2122    def set_operation(self, expression: exp.Expression, op: str) -> str:
    +2123        this = self.sql(expression, "this")
    +2124        op = self.seg(op)
    +2125        return self.query_modifiers(
    +2126            expression, f"{this}{op}{self.sep()}{self.sql(expression, 'expression')}"
    +2127        )
     
    @@ -10451,8 +10509,8 @@ Default: True
    -
    2116    def tag_sql(self, expression: exp.Tag) -> str:
    -2117        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
    +            
    2129    def tag_sql(self, expression: exp.Tag) -> str:
    +2130        return f"{expression.args.get('prefix')}{self.sql(expression.this)}{expression.args.get('postfix')}"
     
    @@ -10470,8 +10528,8 @@ Default: True
    -
    2119    def token_sql(self, token_type: TokenType) -> str:
    -2120        return self.TOKEN_MAPPING.get(token_type, token_type.name)
    +            
    2132    def token_sql(self, token_type: TokenType) -> str:
    +2133        return self.TOKEN_MAPPING.get(token_type, token_type.name)
     
    @@ -10489,13 +10547,13 @@ Default: True
    -
    2122    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    -2123        this = self.sql(expression, "this")
    -2124        expressions = self.no_identify(self.expressions, expression)
    -2125        expressions = (
    -2126            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    -2127        )
    -2128        return f"{this}{expressions}"
    +            
    2135    def userdefinedfunction_sql(self, expression: exp.UserDefinedFunction) -> str:
    +2136        this = self.sql(expression, "this")
    +2137        expressions = self.no_identify(self.expressions, expression)
    +2138        expressions = (
    +2139            self.wrap(expressions) if expression.args.get("wrapped") else f" {expressions}"
    +2140        )
    +2141        return f"{this}{expressions}"
     
    @@ -10513,10 +10571,10 @@ Default: True
    -
    2130    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    -2131        this = self.sql(expression, "this")
    -2132        expressions = self.expressions(expression, flat=True)
    -2133        return f"{this}({expressions})"
    +            
    2143    def joinhint_sql(self, expression: exp.JoinHint) -> str:
    +2144        this = self.sql(expression, "this")
    +2145        expressions = self.expressions(expression, flat=True)
    +2146        return f"{this}({expressions})"
     
    @@ -10534,8 +10592,8 @@ Default: True
    -
    2135    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    -2136        return self.binary(expression, "=>")
    +            
    2148    def kwarg_sql(self, expression: exp.Kwarg) -> str:
    +2149        return self.binary(expression, "=>")
     
    @@ -10553,25 +10611,25 @@ Default: True
    -
    2138    def when_sql(self, expression: exp.When) -> str:
    -2139        matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED"
    -2140        source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else ""
    -2141        condition = self.sql(expression, "condition")
    -2142        condition = f" AND {condition}" if condition else ""
    -2143
    -2144        then_expression = expression.args.get("then")
    -2145        if isinstance(then_expression, exp.Insert):
    -2146            then = f"INSERT {self.sql(then_expression, 'this')}"
    -2147            if "expression" in then_expression.args:
    -2148                then += f" VALUES {self.sql(then_expression, 'expression')}"
    -2149        elif isinstance(then_expression, exp.Update):
    -2150            if isinstance(then_expression.args.get("expressions"), exp.Star):
    -2151                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    -2152            else:
    -2153                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    -2154        else:
    -2155            then = self.sql(then_expression)
    -2156        return f"WHEN {matched}{source}{condition} THEN {then}"
    +            
    2151    def when_sql(self, expression: exp.When) -> str:
    +2152        matched = "MATCHED" if expression.args["matched"] else "NOT MATCHED"
    +2153        source = " BY SOURCE" if self.MATCHED_BY_SOURCE and expression.args.get("source") else ""
    +2154        condition = self.sql(expression, "condition")
    +2155        condition = f" AND {condition}" if condition else ""
    +2156
    +2157        then_expression = expression.args.get("then")
    +2158        if isinstance(then_expression, exp.Insert):
    +2159            then = f"INSERT {self.sql(then_expression, 'this')}"
    +2160            if "expression" in then_expression.args:
    +2161                then += f" VALUES {self.sql(then_expression, 'expression')}"
    +2162        elif isinstance(then_expression, exp.Update):
    +2163            if isinstance(then_expression.args.get("expressions"), exp.Star):
    +2164                then = f"UPDATE {self.sql(then_expression, 'expressions')}"
    +2165            else:
    +2166                then = f"UPDATE SET {self.expressions(then_expression, flat=True)}"
    +2167        else:
    +2168            then = self.sql(then_expression)
    +2169        return f"WHEN {matched}{source}{condition} THEN {then}"
     
    @@ -10589,11 +10647,11 @@ Default: True
    -
    2158    def merge_sql(self, expression: exp.Merge) -> str:
    -2159        this = self.sql(expression, "this")
    -2160        using = f"USING {self.sql(expression, 'using')}"
    -2161        on = f"ON {self.sql(expression, 'on')}"
    -2162        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
    +            
    2171    def merge_sql(self, expression: exp.Merge) -> str:
    +2172        this = self.sql(expression, "this")
    +2173        using = f"USING {self.sql(expression, 'using')}"
    +2174        on = f"ON {self.sql(expression, 'on')}"
    +2175        return f"MERGE INTO {this} {using} {on} {self.expressions(expression, sep=' ')}"
     
    @@ -10611,11 +10669,11 @@ Default: True
    -
    2164    def tochar_sql(self, expression: exp.ToChar) -> str:
    -2165        if expression.args.get("format"):
    -2166            self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function")
    -2167
    -2168        return self.sql(exp.cast(expression.this, "text"))
    +            
    2177    def tochar_sql(self, expression: exp.ToChar) -> str:
    +2178        if expression.args.get("format"):
    +2179            self.unsupported("Format argument unsupported for TO_CHAR/TO_VARCHAR function")
    +2180
    +2181        return self.sql(exp.cast(expression.this, "text"))
     
    diff --git a/docs/sqlglot/lineage.html b/docs/sqlglot/lineage.html index 1c375ad..da53907 100644 --- a/docs/sqlglot/lineage.html +++ b/docs/sqlglot/lineage.html @@ -441,7 +441,7 @@
    def - lineage( column: str | sqlglot.expressions.Column, sql: str | sqlglot.expressions.Expression, schema: Union[Dict, sqlglot.schema.Schema, NoneType] = None, sources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None, rules: Sequence[Callable] = (<function qualify_tables at 0x7fac3cdc5630>, <function qualify_columns at 0x7fac3cdc4550>, <function expand_laterals at 0x7fac3cd8eb90>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: + lineage( column: str | sqlglot.expressions.Column, sql: str | sqlglot.expressions.Expression, schema: Union[Dict, sqlglot.schema.Schema, NoneType] = None, sources: Optional[Dict[str, str | sqlglot.expressions.Subqueryable]] = None, rules: Sequence[Callable] = (<function qualify_tables at 0x7fc498defd00>, <function qualify_columns at 0x7fc498deeb90>, <function expand_laterals at 0x7fc498deef80>), dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None) -> sqlglot.lineage.Node: diff --git a/docs/sqlglot/optimizer/annotate_types.html b/docs/sqlglot/optimizer/annotate_types.html index 922e282..786c144 100644 --- a/docs/sqlglot/optimizer/annotate_types.html +++ b/docs/sqlglot/optimizer/annotate_types.html @@ -408,7 +408,7 @@ 338 left_type = expression.left.type.this 339 right_type = expression.right.type.this 340 -341 if isinstance(expression, (exp.And, exp.Or)): +341 if isinstance(expression, exp.Connector): 342 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: 343 expression.type = exp.DataType.Type.NULL 344 elif exp.DataType.Type.NULL in (left_type, right_type): @@ -417,7 +417,7 @@ 347 ) 348 else: 349 expression.type = exp.DataType.Type.BOOLEAN -350 elif isinstance(expression, (exp.Condition, exp.Predicate)): +350 elif isinstance(expression, exp.Predicate): 351 expression.type = exp.DataType.Type.BOOLEAN 352 else: 353 expression.type = self._maybe_coerce(left_type, right_type) @@ -864,7 +864,7 @@ Assumes that we've already executed the optimizer's qualify_columns step.

    339 left_type = expression.left.type.this 340 right_type = expression.right.type.this 341 -342 if isinstance(expression, (exp.And, exp.Or)): +342 if isinstance(expression, exp.Connector): 343 if left_type == exp.DataType.Type.NULL and right_type == exp.DataType.Type.NULL: 344 expression.type = exp.DataType.Type.NULL 345 elif exp.DataType.Type.NULL in (left_type, right_type): @@ -873,7 +873,7 @@ Assumes that we've already executed the optimizer's qualify_columns step.

    348 ) 349 else: 350 expression.type = exp.DataType.Type.BOOLEAN -351 elif isinstance(expression, (exp.Condition, exp.Predicate)): +351 elif isinstance(expression, exp.Predicate): 352 expression.type = exp.DataType.Type.BOOLEAN 353 else: 354 expression.type = self._maybe_coerce(left_type, right_type) diff --git a/docs/sqlglot/optimizer/eliminate_joins.html b/docs/sqlglot/optimizer/eliminate_joins.html index 009b5b5..de213e4 100644 --- a/docs/sqlglot/optimizer/eliminate_joins.html +++ b/docs/sqlglot/optimizer/eliminate_joins.html @@ -214,7 +214,7 @@ 153 # 154 # should pull y.b as the join key and x.a as the source key 155 if normalized(on): -156 on = on if isinstance(on, exp.And) else exp.and_(on, exp.true()) +156 on = on if isinstance(on, exp.And) else exp.and_(on, exp.true(), copy=False) 157 158 for condition in on.flatten(): 159 if isinstance(condition, exp.EQ): @@ -372,7 +372,7 @@ 154 # 155 # should pull y.b as the join key and x.a as the source key 156 if normalized(on): -157 on = on if isinstance(on, exp.And) else exp.and_(on, exp.true()) +157 on = on if isinstance(on, exp.And) else exp.and_(on, exp.true(), copy=False) 158 159 for condition in on.flatten(): 160 if isinstance(condition, exp.EQ): diff --git a/docs/sqlglot/optimizer/expand_laterals.html b/docs/sqlglot/optimizer/expand_laterals.html index c03ce41..8fcc1a1 100644 --- a/docs/sqlglot/optimizer/expand_laterals.html +++ b/docs/sqlglot/optimizer/expand_laterals.html @@ -87,8 +87,8 @@ 29 for column in projection.find_all(exp.Column): 30 if not column.table and column.name in alias_to_expression: 31 column.replace(alias_to_expression[column.name].copy()) -32 if isinstance(projection, exp.Alias): -33 alias_to_expression[projection.alias] = projection.this +32 if isinstance(projection, exp.Alias): +33 alias_to_expression[projection.alias] = projection.this 34 return expression
    @@ -129,8 +129,8 @@ 30 for column in projection.find_all(exp.Column): 31 if not column.table and column.name in alias_to_expression: 32 column.replace(alias_to_expression[column.name].copy()) -33 if isinstance(projection, exp.Alias): -34 alias_to_expression[projection.alias] = projection.this +33 if isinstance(projection, exp.Alias): +34 alias_to_expression[projection.alias] = projection.this 35 return expression
    diff --git a/docs/sqlglot/optimizer/normalize.html b/docs/sqlglot/optimizer/normalize.html index 2bbdd82..c83a040 100644 --- a/docs/sqlglot/optimizer/normalize.html +++ b/docs/sqlglot/optimizer/normalize.html @@ -219,15 +219,17 @@
    152 lambda c: to_func( 153 uniq_sort(flatten(from_func(c, b.left)), cache), 154 uniq_sort(flatten(from_func(c, b.right)), cache), -155 ), -156 ) -157 else: -158 a = to_func( -159 uniq_sort(flatten(from_func(a, b.left)), cache), -160 uniq_sort(flatten(from_func(a, b.right)), cache), -161 ) -162 -163 return a +155 copy=False, +156 ), +157 ) +158 else: +159 a = to_func( +160 uniq_sort(flatten(from_func(a, b.left)), cache), +161 uniq_sort(flatten(from_func(a, b.right)), cache), +162 copy=False, +163 ) +164 +165 return a
    diff --git a/docs/sqlglot/optimizer/optimizer.html b/docs/sqlglot/optimizer/optimizer.html index 030b85b..378281d 100644 --- a/docs/sqlglot/optimizer/optimizer.html +++ b/docs/sqlglot/optimizer/optimizer.html @@ -68,87 +68,85 @@
    10from sqlglot.optimizer.eliminate_ctes import eliminate_ctes 11from sqlglot.optimizer.eliminate_joins import eliminate_joins 12from sqlglot.optimizer.eliminate_subqueries import eliminate_subqueries -13from sqlglot.optimizer.expand_laterals import expand_laterals -14from sqlglot.optimizer.expand_multi_table_selects import expand_multi_table_selects -15from sqlglot.optimizer.isolate_table_selects import isolate_table_selects -16from sqlglot.optimizer.lower_identities import lower_identities -17from sqlglot.optimizer.merge_subqueries import merge_subqueries -18from sqlglot.optimizer.normalize import normalize -19from sqlglot.optimizer.optimize_joins import optimize_joins -20from sqlglot.optimizer.pushdown_predicates import pushdown_predicates -21from sqlglot.optimizer.pushdown_projections import pushdown_projections -22from sqlglot.optimizer.qualify_columns import qualify_columns, validate_qualify_columns -23from sqlglot.optimizer.qualify_tables import qualify_tables -24from sqlglot.optimizer.simplify import simplify -25from sqlglot.optimizer.unnest_subqueries import unnest_subqueries -26from sqlglot.schema import ensure_schema -27 -28RULES = ( -29 lower_identities, -30 qualify_tables, -31 isolate_table_selects, -32 qualify_columns, -33 expand_laterals, -34 pushdown_projections, -35 validate_qualify_columns, -36 normalize, -37 unnest_subqueries, -38 expand_multi_table_selects, -39 pushdown_predicates, -40 optimize_joins, -41 eliminate_subqueries, -42 merge_subqueries, -43 eliminate_joins, -44 eliminate_ctes, -45 annotate_types, -46 canonicalize, -47 simplify, -48) -49 -50 -51def optimize( -52 expression: str | exp.Expression, -53 schema: t.Optional[dict | Schema] = None, -54 db: t.Optional[str] = None, -55 catalog: t.Optional[str] = None, -56 dialect: DialectType = None, -57 rules: t.Sequence[t.Callable] = RULES, -58 **kwargs, -59): -60 """ -61 Rewrite a sqlglot AST into an optimized form. -62 -63 Args: -64 expression: expression to optimize -65 schema: database schema. -66 This can either be an instance of `sqlglot.optimizer.Schema` or a mapping in one of -67 the following forms: -68 1. {table: {col: type}} -69 2. {db: {table: {col: type}}} -70 3. {catalog: {db: {table: {col: type}}}} -71 If no schema is provided then the default schema defined at `sqlgot.schema` will be used -72 db: specify the default database, as might be set by a `USE DATABASE db` statement -73 catalog: specify the default catalog, as might be set by a `USE CATALOG c` statement -74 dialect: The dialect to parse the sql string. -75 rules: sequence of optimizer rules to use. -76 Many of the rules require tables and columns to be qualified. -77 Do not remove qualify_tables or qualify_columns from the sequence of rules unless you know -78 what you're doing! -79 **kwargs: If a rule has a keyword argument with a same name in **kwargs, it will be passed in. -80 Returns: -81 sqlglot.Expression: optimized expression -82 """ -83 schema = ensure_schema(schema or sqlglot.schema, dialect=dialect) -84 possible_kwargs = {"db": db, "catalog": catalog, "schema": schema, **kwargs} -85 expression = exp.maybe_parse(expression, dialect=dialect, copy=True) -86 for rule in rules: -87 # Find any additional rule parameters, beyond `expression` -88 rule_params = rule.__code__.co_varnames -89 rule_kwargs = { -90 param: possible_kwargs[param] for param in rule_params if param in possible_kwargs -91 } -92 expression = rule(expression, **rule_kwargs) -93 return expression +13from sqlglot.optimizer.expand_multi_table_selects import expand_multi_table_selects +14from sqlglot.optimizer.isolate_table_selects import isolate_table_selects +15from sqlglot.optimizer.lower_identities import lower_identities +16from sqlglot.optimizer.merge_subqueries import merge_subqueries +17from sqlglot.optimizer.normalize import normalize +18from sqlglot.optimizer.optimize_joins import optimize_joins +19from sqlglot.optimizer.pushdown_predicates import pushdown_predicates +20from sqlglot.optimizer.pushdown_projections import pushdown_projections +21from sqlglot.optimizer.qualify_columns import qualify_columns, validate_qualify_columns +22from sqlglot.optimizer.qualify_tables import qualify_tables +23from sqlglot.optimizer.simplify import simplify +24from sqlglot.optimizer.unnest_subqueries import unnest_subqueries +25from sqlglot.schema import ensure_schema +26 +27RULES = ( +28 lower_identities, +29 qualify_tables, +30 isolate_table_selects, +31 qualify_columns, +32 pushdown_projections, +33 validate_qualify_columns, +34 normalize, +35 unnest_subqueries, +36 expand_multi_table_selects, +37 pushdown_predicates, +38 optimize_joins, +39 eliminate_subqueries, +40 merge_subqueries, +41 eliminate_joins, +42 eliminate_ctes, +43 annotate_types, +44 canonicalize, +45 simplify, +46) +47 +48 +49def optimize( +50 expression: str | exp.Expression, +51 schema: t.Optional[dict | Schema] = None, +52 db: t.Optional[str] = None, +53 catalog: t.Optional[str] = None, +54 dialect: DialectType = None, +55 rules: t.Sequence[t.Callable] = RULES, +56 **kwargs, +57): +58 """ +59 Rewrite a sqlglot AST into an optimized form. +60 +61 Args: +62 expression: expression to optimize +63 schema: database schema. +64 This can either be an instance of `sqlglot.optimizer.Schema` or a mapping in one of +65 the following forms: +66 1. {table: {col: type}} +67 2. {db: {table: {col: type}}} +68 3. {catalog: {db: {table: {col: type}}}} +69 If no schema is provided then the default schema defined at `sqlgot.schema` will be used +70 db: specify the default database, as might be set by a `USE DATABASE db` statement +71 catalog: specify the default catalog, as might be set by a `USE CATALOG c` statement +72 dialect: The dialect to parse the sql string. +73 rules: sequence of optimizer rules to use. +74 Many of the rules require tables and columns to be qualified. +75 Do not remove qualify_tables or qualify_columns from the sequence of rules unless you know +76 what you're doing! +77 **kwargs: If a rule has a keyword argument with a same name in **kwargs, it will be passed in. +78 Returns: +79 sqlglot.Expression: optimized expression +80 """ +81 schema = ensure_schema(schema or sqlglot.schema, dialect=dialect) +82 possible_kwargs = {"db": db, "catalog": catalog, "schema": schema, **kwargs} +83 expression = exp.maybe_parse(expression, dialect=dialect, copy=True) +84 for rule in rules: +85 # Find any additional rule parameters, beyond `expression` +86 rule_params = rule.__code__.co_varnames +87 rule_kwargs = { +88 param: possible_kwargs[param] for param in rule_params if param in possible_kwargs +89 } +90 expression = rule(expression, **rule_kwargs) +91 return expression
    @@ -158,55 +156,55 @@
    def - optimize( expression: str | sqlglot.expressions.Expression, schema: Union[dict, sqlglot.schema.Schema, NoneType] = None, db: Optional[str] = None, catalog: Optional[str] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, rules: Sequence[Callable] = (<function lower_identities at 0x7fac3cd8eef0>, <function qualify_tables at 0x7fac3cdc5630>, <function isolate_table_selects at 0x7fac3cd8edd0>, <function qualify_columns at 0x7fac3cdc4550>, <function expand_laterals at 0x7fac3cd8eb90>, <function pushdown_projections at 0x7fac3cdc5000>, <function validate_qualify_columns at 0x7fac3cdc45e0>, <function normalize at 0x7fac3cd8c9d0>, <function unnest_subqueries at 0x7fac3cdc5750>, <function expand_multi_table_selects at 0x7fac3cd8ed40>, <function pushdown_predicates at 0x7fac3cdc40d0>, <function optimize_joins at 0x7fac3cd8fc70>, <function eliminate_subqueries at 0x7fac3cd8e7a0>, <function merge_subqueries at 0x7fac3cd8f1c0>, <function eliminate_joins at 0x7fac3cd8c8b0>, <function eliminate_ctes at 0x7fac3cd8c790>, <function annotate_types at 0x7fac3cd5cdc0>, <function canonicalize at 0x7fac3cd8c1f0>, <function simplify at 0x7fac3cd8caf0>), **kwargs): + optimize( expression: str | sqlglot.expressions.Expression, schema: Union[dict, sqlglot.schema.Schema, NoneType] = None, db: Optional[str] = None, catalog: Optional[str] = None, dialect: Union[str, sqlglot.dialects.dialect.Dialect, Type[sqlglot.dialects.dialect.Dialect], NoneType] = None, rules: Sequence[Callable] = (<function lower_identities at 0x7fc498ded5a0>, <function qualify_tables at 0x7fc498defd00>, <function isolate_table_selects at 0x7fc498ded480>, <function qualify_columns at 0x7fc498deeb90>, <function pushdown_projections at 0x7fc498def6d0>, <function validate_qualify_columns at 0x7fc498def010>, <function normalize at 0x7fc498dc71c0>, <function unnest_subqueries at 0x7fc498defe20>, <function expand_multi_table_selects at 0x7fc498ded3f0>, <function pushdown_predicates at 0x7fc498dee710>, <function optimize_joins at 0x7fc498dee320>, <function eliminate_subqueries at 0x7fc498ded000>, <function merge_subqueries at 0x7fc498ded870>, <function eliminate_joins at 0x7fc498dc6f80>, <function eliminate_ctes at 0x7fc498dc6e60>, <function annotate_types at 0x7fc498d935b0>, <function canonicalize at 0x7fc498dc68c0>, <function simplify at 0x7fc498dc7370>), **kwargs):
    -
    52def optimize(
    -53    expression: str | exp.Expression,
    -54    schema: t.Optional[dict | Schema] = None,
    -55    db: t.Optional[str] = None,
    -56    catalog: t.Optional[str] = None,
    -57    dialect: DialectType = None,
    -58    rules: t.Sequence[t.Callable] = RULES,
    -59    **kwargs,
    -60):
    -61    """
    -62    Rewrite a sqlglot AST into an optimized form.
    -63
    -64    Args:
    -65        expression: expression to optimize
    -66        schema: database schema.
    -67            This can either be an instance of `sqlglot.optimizer.Schema` or a mapping in one of
    -68            the following forms:
    -69                1. {table: {col: type}}
    -70                2. {db: {table: {col: type}}}
    -71                3. {catalog: {db: {table: {col: type}}}}
    -72            If no schema is provided then the default schema defined at `sqlgot.schema` will be used
    -73        db: specify the default database, as might be set by a `USE DATABASE db` statement
    -74        catalog: specify the default catalog, as might be set by a `USE CATALOG c` statement
    -75        dialect: The dialect to parse the sql string.
    -76        rules: sequence of optimizer rules to use.
    -77            Many of the rules require tables and columns to be qualified.
    -78            Do not remove qualify_tables or qualify_columns from the sequence of rules unless you know
    -79            what you're doing!
    -80        **kwargs: If a rule has a keyword argument with a same name in **kwargs, it will be passed in.
    -81    Returns:
    -82        sqlglot.Expression: optimized expression
    -83    """
    -84    schema = ensure_schema(schema or sqlglot.schema, dialect=dialect)
    -85    possible_kwargs = {"db": db, "catalog": catalog, "schema": schema, **kwargs}
    -86    expression = exp.maybe_parse(expression, dialect=dialect, copy=True)
    -87    for rule in rules:
    -88        # Find any additional rule parameters, beyond `expression`
    -89        rule_params = rule.__code__.co_varnames
    -90        rule_kwargs = {
    -91            param: possible_kwargs[param] for param in rule_params if param in possible_kwargs
    -92        }
    -93        expression = rule(expression, **rule_kwargs)
    -94    return expression
    +            
    50def optimize(
    +51    expression: str | exp.Expression,
    +52    schema: t.Optional[dict | Schema] = None,
    +53    db: t.Optional[str] = None,
    +54    catalog: t.Optional[str] = None,
    +55    dialect: DialectType = None,
    +56    rules: t.Sequence[t.Callable] = RULES,
    +57    **kwargs,
    +58):
    +59    """
    +60    Rewrite a sqlglot AST into an optimized form.
    +61
    +62    Args:
    +63        expression: expression to optimize
    +64        schema: database schema.
    +65            This can either be an instance of `sqlglot.optimizer.Schema` or a mapping in one of
    +66            the following forms:
    +67                1. {table: {col: type}}
    +68                2. {db: {table: {col: type}}}
    +69                3. {catalog: {db: {table: {col: type}}}}
    +70            If no schema is provided then the default schema defined at `sqlgot.schema` will be used
    +71        db: specify the default database, as might be set by a `USE DATABASE db` statement
    +72        catalog: specify the default catalog, as might be set by a `USE CATALOG c` statement
    +73        dialect: The dialect to parse the sql string.
    +74        rules: sequence of optimizer rules to use.
    +75            Many of the rules require tables and columns to be qualified.
    +76            Do not remove qualify_tables or qualify_columns from the sequence of rules unless you know
    +77            what you're doing!
    +78        **kwargs: If a rule has a keyword argument with a same name in **kwargs, it will be passed in.
    +79    Returns:
    +80        sqlglot.Expression: optimized expression
    +81    """
    +82    schema = ensure_schema(schema or sqlglot.schema, dialect=dialect)
    +83    possible_kwargs = {"db": db, "catalog": catalog, "schema": schema, **kwargs}
    +84    expression = exp.maybe_parse(expression, dialect=dialect, copy=True)
    +85    for rule in rules:
    +86        # Find any additional rule parameters, beyond `expression`
    +87        rule_params = rule.__code__.co_varnames
    +88        rule_kwargs = {
    +89            param: possible_kwargs[param] for param in rule_params if param in possible_kwargs
    +90        }
    +91        expression = rule(expression, **rule_kwargs)
    +92    return expression
     
    diff --git a/docs/sqlglot/optimizer/qualify_columns.html b/docs/sqlglot/optimizer/qualify_columns.html index 7b30b8d..2d257f2 100644 --- a/docs/sqlglot/optimizer/qualify_columns.html +++ b/docs/sqlglot/optimizer/qualify_columns.html @@ -82,525 +82,534 @@
    3 4from sqlglot import alias, exp 5from sqlglot.errors import OptimizeError - 6from sqlglot.optimizer.scope import Scope, traverse_scope - 7from sqlglot.schema import ensure_schema - 8 + 6from sqlglot.optimizer.expand_laterals import expand_laterals as _expand_laterals + 7from sqlglot.optimizer.scope import Scope, traverse_scope + 8from sqlglot.schema import ensure_schema 9 - 10def qualify_columns(expression, schema): - 11 """ - 12 Rewrite sqlglot AST to have fully qualified columns. - 13 - 14 Example: - 15 >>> import sqlglot - 16 >>> schema = {"tbl": {"col": "INT"}} - 17 >>> expression = sqlglot.parse_one("SELECT col FROM tbl") - 18 >>> qualify_columns(expression, schema).sql() - 19 'SELECT tbl.col AS col FROM tbl' - 20 - 21 Args: - 22 expression (sqlglot.Expression): expression to qualify - 23 schema (dict|sqlglot.optimizer.Schema): Database schema - 24 Returns: - 25 sqlglot.Expression: qualified expression - 26 """ - 27 schema = ensure_schema(schema) - 28 - 29 for scope in traverse_scope(expression): - 30 resolver = Resolver(scope, schema) - 31 _pop_table_column_aliases(scope.ctes) - 32 _pop_table_column_aliases(scope.derived_tables) - 33 using_column_tables = _expand_using(scope, resolver) - 34 _qualify_columns(scope, resolver) - 35 if not isinstance(scope.expression, exp.UDTF): - 36 _expand_stars(scope, resolver, using_column_tables) - 37 _qualify_outputs(scope) - 38 _expand_alias_refs(scope, resolver) - 39 _expand_group_by(scope, resolver) - 40 _expand_order_by(scope) - 41 - 42 return expression - 43 - 44 - 45def validate_qualify_columns(expression): - 46 """Raise an `OptimizeError` if any columns aren't qualified""" - 47 unqualified_columns = [] - 48 for scope in traverse_scope(expression): - 49 if isinstance(scope.expression, exp.Select): - 50 unqualified_columns.extend(scope.unqualified_columns) - 51 if scope.external_columns and not scope.is_correlated_subquery: - 52 column = scope.external_columns[0] - 53 raise OptimizeError(f"Unknown table: '{column.table}' for column '{column}'") - 54 - 55 if unqualified_columns: - 56 raise OptimizeError(f"Ambiguous columns: {unqualified_columns}") - 57 return expression - 58 - 59 - 60def _pop_table_column_aliases(derived_tables): - 61 """ - 62 Remove table column aliases. - 63 - 64 (e.g. SELECT ... FROM (SELECT ...) AS foo(col1, col2) - 65 """ - 66 for derived_table in derived_tables: - 67 table_alias = derived_table.args.get("alias") - 68 if table_alias: - 69 table_alias.args.pop("columns", None) + 10 + 11def qualify_columns(expression, schema, expand_laterals=True): + 12 """ + 13 Rewrite sqlglot AST to have fully qualified columns. + 14 + 15 Example: + 16 >>> import sqlglot + 17 >>> schema = {"tbl": {"col": "INT"}} + 18 >>> expression = sqlglot.parse_one("SELECT col FROM tbl") + 19 >>> qualify_columns(expression, schema).sql() + 20 'SELECT tbl.col AS col FROM tbl' + 21 + 22 Args: + 23 expression (sqlglot.Expression): expression to qualify + 24 schema (dict|sqlglot.optimizer.Schema): Database schema + 25 Returns: + 26 sqlglot.Expression: qualified expression + 27 """ + 28 schema = ensure_schema(schema) + 29 + 30 if not schema.mapping and expand_laterals: + 31 expression = _expand_laterals(expression) + 32 + 33 for scope in traverse_scope(expression): + 34 resolver = Resolver(scope, schema) + 35 _pop_table_column_aliases(scope.ctes) + 36 _pop_table_column_aliases(scope.derived_tables) + 37 using_column_tables = _expand_using(scope, resolver) + 38 _qualify_columns(scope, resolver) + 39 if not isinstance(scope.expression, exp.UDTF): + 40 _expand_stars(scope, resolver, using_column_tables) + 41 _qualify_outputs(scope) + 42 _expand_alias_refs(scope, resolver) + 43 _expand_group_by(scope, resolver) + 44 _expand_order_by(scope) + 45 + 46 if schema.mapping and expand_laterals: + 47 expression = _expand_laterals(expression) + 48 + 49 return expression + 50 + 51 + 52def validate_qualify_columns(expression): + 53 """Raise an `OptimizeError` if any columns aren't qualified""" + 54 unqualified_columns = [] + 55 for scope in traverse_scope(expression): + 56 if isinstance(scope.expression, exp.Select): + 57 unqualified_columns.extend(scope.unqualified_columns) + 58 if scope.external_columns and not scope.is_correlated_subquery: + 59 column = scope.external_columns[0] + 60 raise OptimizeError(f"Unknown table: '{column.table}' for column '{column}'") + 61 + 62 if unqualified_columns: + 63 raise OptimizeError(f"Ambiguous columns: {unqualified_columns}") + 64 return expression + 65 + 66 + 67def _pop_table_column_aliases(derived_tables): + 68 """ + 69 Remove table column aliases. 70 - 71 - 72def _expand_using(scope, resolver): - 73 joins = list(scope.find_all(exp.Join)) - 74 names = {join.this.alias for join in joins} - 75 ordered = [key for key in scope.selected_sources if key not in names] - 76 - 77 # Mapping of automatically joined column names to an ordered set of source names (dict). - 78 column_tables = {} - 79 - 80 for join in joins: - 81 using = join.args.get("using") - 82 - 83 if not using: - 84 continue - 85 - 86 join_table = join.this.alias_or_name - 87 - 88 columns = {} + 71 (e.g. SELECT ... FROM (SELECT ...) AS foo(col1, col2) + 72 """ + 73 for derived_table in derived_tables: + 74 table_alias = derived_table.args.get("alias") + 75 if table_alias: + 76 table_alias.args.pop("columns", None) + 77 + 78 + 79def _expand_using(scope, resolver): + 80 joins = list(scope.find_all(exp.Join)) + 81 names = {join.this.alias for join in joins} + 82 ordered = [key for key in scope.selected_sources if key not in names] + 83 + 84 # Mapping of automatically joined column names to an ordered set of source names (dict). + 85 column_tables = {} + 86 + 87 for join in joins: + 88 using = join.args.get("using") 89 - 90 for k in scope.selected_sources: - 91 if k in ordered: - 92 for column in resolver.get_source_columns(k): - 93 if column not in columns: - 94 columns[column] = k - 95 - 96 source_table = ordered[-1] - 97 ordered.append(join_table) - 98 join_columns = resolver.get_source_columns(join_table) - 99 conditions = [] -100 -101 for identifier in using: -102 identifier = identifier.name -103 table = columns.get(identifier) -104 -105 if not table or identifier not in join_columns: -106 if columns and join_columns: -107 raise OptimizeError(f"Cannot automatically join: {identifier}") -108 -109 table = table or source_table -110 conditions.append( -111 exp.condition( -112 exp.EQ( -113 this=exp.column(identifier, table=table), -114 expression=exp.column(identifier, table=join_table), -115 ) -116 ) -117 ) -118 -119 # Set all values in the dict to None, because we only care about the key ordering -120 tables = column_tables.setdefault(identifier, {}) -121 if table not in tables: -122 tables[table] = None -123 if join_table not in tables: -124 tables[join_table] = None + 90 if not using: + 91 continue + 92 + 93 join_table = join.this.alias_or_name + 94 + 95 columns = {} + 96 + 97 for k in scope.selected_sources: + 98 if k in ordered: + 99 for column in resolver.get_source_columns(k): +100 if column not in columns: +101 columns[column] = k +102 +103 source_table = ordered[-1] +104 ordered.append(join_table) +105 join_columns = resolver.get_source_columns(join_table) +106 conditions = [] +107 +108 for identifier in using: +109 identifier = identifier.name +110 table = columns.get(identifier) +111 +112 if not table or identifier not in join_columns: +113 if columns and join_columns: +114 raise OptimizeError(f"Cannot automatically join: {identifier}") +115 +116 table = table or source_table +117 conditions.append( +118 exp.condition( +119 exp.EQ( +120 this=exp.column(identifier, table=table), +121 expression=exp.column(identifier, table=join_table), +122 ) +123 ) +124 ) 125 -126 join.args.pop("using") -127 join.set("on", exp.and_(*conditions)) -128 -129 if column_tables: -130 for column in scope.columns: -131 if not column.table and column.name in column_tables: -132 tables = column_tables[column.name] -133 coalesce = [exp.column(column.name, table=table) for table in tables] -134 replacement = exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]) +126 # Set all values in the dict to None, because we only care about the key ordering +127 tables = column_tables.setdefault(identifier, {}) +128 if table not in tables: +129 tables[table] = None +130 if join_table not in tables: +131 tables[join_table] = None +132 +133 join.args.pop("using") +134 join.set("on", exp.and_(*conditions, copy=False)) 135 -136 # Ensure selects keep their output name -137 if isinstance(column.parent, exp.Select): -138 replacement = exp.alias_(replacement, alias=column.name) -139 -140 scope.replace(column, replacement) -141 -142 return column_tables -143 -144 -145def _expand_alias_refs(scope, resolver): -146 selects = {} -147 -148 # Replace references to select aliases -149 def transform(node, source_first=True): -150 if isinstance(node, exp.Column) and not node.table: -151 table = resolver.get_table(node.name) -152 -153 # Source columns get priority over select aliases -154 if source_first and table: -155 node.set("table", table) -156 return node -157 -158 if not selects: -159 for s in scope.selects: -160 selects[s.alias_or_name] = s -161 select = selects.get(node.name) -162 -163 if select: -164 scope.clear_cache() -165 if isinstance(select, exp.Alias): -166 select = select.this -167 return select.copy() -168 -169 node.set("table", table) -170 elif isinstance(node, exp.Expression) and not isinstance(node, exp.Subqueryable): -171 exp.replace_children(node, transform, source_first) -172 -173 return node -174 -175 for select in scope.expression.selects: -176 transform(select) -177 -178 for modifier, source_first in ( -179 ("where", True), -180 ("group", True), -181 ("having", False), -182 ): -183 transform(scope.expression.args.get(modifier), source_first=source_first) +136 if column_tables: +137 for column in scope.columns: +138 if not column.table and column.name in column_tables: +139 tables = column_tables[column.name] +140 coalesce = [exp.column(column.name, table=table) for table in tables] +141 replacement = exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]) +142 +143 # Ensure selects keep their output name +144 if isinstance(column.parent, exp.Select): +145 replacement = exp.alias_(replacement, alias=column.name) +146 +147 scope.replace(column, replacement) +148 +149 return column_tables +150 +151 +152def _expand_alias_refs(scope, resolver): +153 selects = {} +154 +155 # Replace references to select aliases +156 def transform(node, source_first=True): +157 if isinstance(node, exp.Column) and not node.table: +158 table = resolver.get_table(node.name) +159 +160 # Source columns get priority over select aliases +161 if source_first and table: +162 node.set("table", table) +163 return node +164 +165 if not selects: +166 for s in scope.selects: +167 selects[s.alias_or_name] = s +168 select = selects.get(node.name) +169 +170 if select: +171 scope.clear_cache() +172 if isinstance(select, exp.Alias): +173 select = select.this +174 return select.copy() +175 +176 node.set("table", table) +177 elif isinstance(node, exp.Expression) and not isinstance(node, exp.Subqueryable): +178 exp.replace_children(node, transform, source_first) +179 +180 return node +181 +182 for select in scope.expression.selects: +183 transform(select) 184 -185 -186def _expand_group_by(scope, resolver): -187 group = scope.expression.args.get("group") -188 if not group: -189 return -190 -191 group.set("expressions", _expand_positional_references(scope, group.expressions)) -192 scope.expression.set("group", group) -193 -194 -195def _expand_order_by(scope): -196 order = scope.expression.args.get("order") -197 if not order: -198 return -199 -200 ordereds = order.expressions -201 for ordered, new_expression in zip( -202 ordereds, -203 _expand_positional_references(scope, (o.this for o in ordereds)), -204 ): -205 ordered.set("this", new_expression) +185 for modifier, source_first in ( +186 ("where", True), +187 ("group", True), +188 ("having", False), +189 ): +190 transform(scope.expression.args.get(modifier), source_first=source_first) +191 +192 +193def _expand_group_by(scope, resolver): +194 group = scope.expression.args.get("group") +195 if not group: +196 return +197 +198 group.set("expressions", _expand_positional_references(scope, group.expressions)) +199 scope.expression.set("group", group) +200 +201 +202def _expand_order_by(scope): +203 order = scope.expression.args.get("order") +204 if not order: +205 return 206 -207 -208def _expand_positional_references(scope, expressions): -209 new_nodes = [] -210 for node in expressions: -211 if node.is_int: -212 try: -213 select = scope.selects[int(node.name) - 1] -214 except IndexError: -215 raise OptimizeError(f"Unknown output column: {node.name}") -216 if isinstance(select, exp.Alias): -217 select = select.this -218 new_nodes.append(select.copy()) -219 scope.clear_cache() -220 else: -221 new_nodes.append(node) -222 -223 return new_nodes -224 -225 -226def _qualify_columns(scope, resolver): -227 """Disambiguate columns, ensuring each column specifies a source""" -228 for column in scope.columns: -229 column_table = column.table -230 column_name = column.name +207 ordereds = order.expressions +208 for ordered, new_expression in zip( +209 ordereds, +210 _expand_positional_references(scope, (o.this for o in ordereds)), +211 ): +212 ordered.set("this", new_expression) +213 +214 +215def _expand_positional_references(scope, expressions): +216 new_nodes = [] +217 for node in expressions: +218 if node.is_int: +219 try: +220 select = scope.selects[int(node.name) - 1] +221 except IndexError: +222 raise OptimizeError(f"Unknown output column: {node.name}") +223 if isinstance(select, exp.Alias): +224 select = select.this +225 new_nodes.append(select.copy()) +226 scope.clear_cache() +227 else: +228 new_nodes.append(node) +229 +230 return new_nodes 231 -232 if column_table and column_table in scope.sources: -233 source_columns = resolver.get_source_columns(column_table) -234 if source_columns and column_name not in source_columns and "*" not in source_columns: -235 raise OptimizeError(f"Unknown column: {column_name}") -236 -237 if not column_table: -238 column_table = resolver.get_table(column_name) -239 -240 # column_table can be a '' because bigquery unnest has no table alias -241 if column_table: -242 column.set("table", column_table) -243 elif column_table not in scope.sources: -244 # structs are used like tables (e.g. "struct"."field"), so they need to be qualified -245 # separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...)) +232 +233def _qualify_columns(scope, resolver): +234 """Disambiguate columns, ensuring each column specifies a source""" +235 for column in scope.columns: +236 column_table = column.table +237 column_name = column.name +238 +239 if column_table and column_table in scope.sources: +240 source_columns = resolver.get_source_columns(column_table) +241 if source_columns and column_name not in source_columns and "*" not in source_columns: +242 raise OptimizeError(f"Unknown column: {column_name}") +243 +244 if not column_table: +245 column_table = resolver.get_table(column_name) 246 -247 root, *parts = column.parts -248 -249 if root.name in scope.sources: -250 # struct is already qualified, but we still need to change the AST representation -251 column_table = root -252 root, *parts = parts -253 else: -254 column_table = resolver.get_table(root.name) +247 # column_table can be a '' because bigquery unnest has no table alias +248 if column_table: +249 column.set("table", column_table) +250 elif column_table not in scope.sources and ( +251 not scope.parent or column_table not in scope.parent.sources +252 ): +253 # structs are used like tables (e.g. "struct"."field"), so they need to be qualified +254 # separately and represented as dot(dot(...(<table>.<column>, field1), field2, ...)) 255 -256 if column_table: -257 column.replace(exp.Dot.build([exp.column(root, table=column_table), *parts])) -258 -259 columns_missing_from_scope = [] -260 -261 # Determine whether each reference in the order by clause is to a column or an alias. -262 order = scope.expression.args.get("order") -263 -264 if order: -265 for ordered in order.expressions: -266 for column in ordered.find_all(exp.Column): -267 if ( -268 not column.table -269 and column.parent is not ordered -270 and column.name in resolver.all_columns -271 ): -272 columns_missing_from_scope.append(column) -273 -274 # Determine whether each reference in the having clause is to a column or an alias. -275 having = scope.expression.args.get("having") -276 -277 if having: -278 for column in having.find_all(exp.Column): -279 if ( -280 not column.table -281 and column.find_ancestor(exp.AggFunc) -282 and column.name in resolver.all_columns -283 ): -284 columns_missing_from_scope.append(column) +256 root, *parts = column.parts +257 +258 if root.name in scope.sources: +259 # struct is already qualified, but we still need to change the AST representation +260 column_table = root +261 root, *parts = parts +262 else: +263 column_table = resolver.get_table(root.name) +264 +265 if column_table: +266 column.replace(exp.Dot.build([exp.column(root, table=column_table), *parts])) +267 +268 columns_missing_from_scope = [] +269 +270 # Determine whether each reference in the order by clause is to a column or an alias. +271 order = scope.expression.args.get("order") +272 +273 if order: +274 for ordered in order.expressions: +275 for column in ordered.find_all(exp.Column): +276 if ( +277 not column.table +278 and column.parent is not ordered +279 and column.name in resolver.all_columns +280 ): +281 columns_missing_from_scope.append(column) +282 +283 # Determine whether each reference in the having clause is to a column or an alias. +284 having = scope.expression.args.get("having") 285 -286 for column in columns_missing_from_scope: -287 column_table = resolver.get_table(column.name) -288 -289 if column_table: -290 column.set("table", column_table) -291 -292 -293def _expand_stars(scope, resolver, using_column_tables): -294 """Expand stars to lists of column selections""" -295 -296 new_selections = [] -297 except_columns = {} -298 replace_columns = {} -299 coalesced_columns = set() +286 if having: +287 for column in having.find_all(exp.Column): +288 if ( +289 not column.table +290 and column.find_ancestor(exp.AggFunc) +291 and column.name in resolver.all_columns +292 ): +293 columns_missing_from_scope.append(column) +294 +295 for column in columns_missing_from_scope: +296 column_table = resolver.get_table(column.name) +297 +298 if column_table: +299 column.set("table", column_table) 300 -301 for expression in scope.selects: -302 if isinstance(expression, exp.Star): -303 tables = list(scope.selected_sources) -304 _add_except_columns(expression, tables, except_columns) -305 _add_replace_columns(expression, tables, replace_columns) -306 elif expression.is_star: -307 tables = [expression.table] -308 _add_except_columns(expression.this, tables, except_columns) -309 _add_replace_columns(expression.this, tables, replace_columns) -310 else: -311 new_selections.append(expression) -312 continue -313 -314 for table in tables: -315 if table not in scope.sources: -316 raise OptimizeError(f"Unknown table: {table}") -317 columns = resolver.get_source_columns(table, only_visible=True) -318 -319 if columns and "*" not in columns: -320 table_id = id(table) -321 for name in columns: -322 if name in using_column_tables and table in using_column_tables[name]: -323 if name in coalesced_columns: -324 continue -325 -326 coalesced_columns.add(name) -327 tables = using_column_tables[name] -328 coalesce = [exp.column(name, table=table) for table in tables] -329 -330 new_selections.append( -331 exp.alias_( -332 exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]), alias=name -333 ) -334 ) -335 elif name not in except_columns.get(table_id, set()): -336 alias_ = replace_columns.get(table_id, {}).get(name, name) -337 column = exp.column(name, table) -338 new_selections.append(alias(column, alias_) if alias_ != name else column) -339 else: -340 return -341 scope.expression.set("expressions", new_selections) -342 -343 -344def _add_except_columns(expression, tables, except_columns): -345 except_ = expression.args.get("except") -346 -347 if not except_: -348 return -349 -350 columns = {e.name for e in except_} +301 +302def _expand_stars(scope, resolver, using_column_tables): +303 """Expand stars to lists of column selections""" +304 +305 new_selections = [] +306 except_columns = {} +307 replace_columns = {} +308 coalesced_columns = set() +309 +310 for expression in scope.selects: +311 if isinstance(expression, exp.Star): +312 tables = list(scope.selected_sources) +313 _add_except_columns(expression, tables, except_columns) +314 _add_replace_columns(expression, tables, replace_columns) +315 elif expression.is_star: +316 tables = [expression.table] +317 _add_except_columns(expression.this, tables, except_columns) +318 _add_replace_columns(expression.this, tables, replace_columns) +319 else: +320 new_selections.append(expression) +321 continue +322 +323 for table in tables: +324 if table not in scope.sources: +325 raise OptimizeError(f"Unknown table: {table}") +326 columns = resolver.get_source_columns(table, only_visible=True) +327 +328 if columns and "*" not in columns: +329 table_id = id(table) +330 for name in columns: +331 if name in using_column_tables and table in using_column_tables[name]: +332 if name in coalesced_columns: +333 continue +334 +335 coalesced_columns.add(name) +336 tables = using_column_tables[name] +337 coalesce = [exp.column(name, table=table) for table in tables] +338 +339 new_selections.append( +340 exp.alias_( +341 exp.Coalesce(this=coalesce[0], expressions=coalesce[1:]), alias=name +342 ) +343 ) +344 elif name not in except_columns.get(table_id, set()): +345 alias_ = replace_columns.get(table_id, {}).get(name, name) +346 column = exp.column(name, table) +347 new_selections.append(alias(column, alias_) if alias_ != name else column) +348 else: +349 return +350 scope.expression.set("expressions", new_selections) 351 -352 for table in tables: -353 except_columns[id(table)] = columns -354 +352 +353def _add_except_columns(expression, tables, except_columns): +354 except_ = expression.args.get("except") 355 -356def _add_replace_columns(expression, tables, replace_columns): -357 replace = expression.args.get("replace") +356 if not except_: +357 return 358 -359 if not replace: -360 return -361 -362 columns = {e.this.name: e.alias for e in replace} +359 columns = {e.name for e in except_} +360 +361 for table in tables: +362 except_columns[id(table)] = columns 363 -364 for table in tables: -365 replace_columns[id(table)] = columns -366 +364 +365def _add_replace_columns(expression, tables, replace_columns): +366 replace = expression.args.get("replace") 367 -368def _qualify_outputs(scope): -369 """Ensure all output columns are aliased""" -370 new_selections = [] -371 -372 for i, (selection, aliased_column) in enumerate( -373 itertools.zip_longest(scope.selects, scope.outer_column_list) -374 ): -375 if isinstance(selection, exp.Subquery): -376 if not selection.output_name: -377 selection.set("alias", exp.TableAlias(this=exp.to_identifier(f"_col_{i}"))) -378 elif not isinstance(selection, exp.Alias) and not selection.is_star: -379 alias_ = alias(exp.column(""), alias=selection.output_name or f"_col_{i}") -380 alias_.set("this", selection) -381 selection = alias_ -382 -383 if aliased_column: -384 selection.set("alias", exp.to_identifier(aliased_column)) -385 -386 new_selections.append(selection) -387 -388 scope.expression.set("expressions", new_selections) -389 -390 -391class Resolver: -392 """ -393 Helper for resolving columns. +368 if not replace: +369 return +370 +371 columns = {e.this.name: e.alias for e in replace} +372 +373 for table in tables: +374 replace_columns[id(table)] = columns +375 +376 +377def _qualify_outputs(scope): +378 """Ensure all output columns are aliased""" +379 new_selections = [] +380 +381 for i, (selection, aliased_column) in enumerate( +382 itertools.zip_longest(scope.selects, scope.outer_column_list) +383 ): +384 if isinstance(selection, exp.Subquery): +385 if not selection.output_name: +386 selection.set("alias", exp.TableAlias(this=exp.to_identifier(f"_col_{i}"))) +387 elif not isinstance(selection, exp.Alias) and not selection.is_star: +388 alias_ = alias(exp.column(""), alias=selection.output_name or f"_col_{i}") +389 alias_.set("this", selection) +390 selection = alias_ +391 +392 if aliased_column: +393 selection.set("alias", exp.to_identifier(aliased_column)) 394 -395 This is a class so we can lazily load some things and easily share them across functions. -396 """ -397 -398 def __init__(self, scope, schema): -399 self.scope = scope -400 self.schema = schema -401 self._source_columns = None -402 self._unambiguous_columns = None -403 self._all_columns = None -404 -405 def get_table(self, column_name: str) -> t.Optional[exp.Identifier]: -406 """ -407 Get the table for a column name. -408 -409 Args: -410 column_name: The column name to find the table for. -411 Returns: -412 The table name if it can be found/inferred. -413 """ -414 if self._unambiguous_columns is None: -415 self._unambiguous_columns = self._get_unambiguous_columns( -416 self._get_all_source_columns() -417 ) -418 -419 table_name = self._unambiguous_columns.get(column_name) -420 -421 if not table_name: -422 sources_without_schema = tuple( -423 source -424 for source, columns in self._get_all_source_columns().items() -425 if not columns or "*" in columns +395 new_selections.append(selection) +396 +397 scope.expression.set("expressions", new_selections) +398 +399 +400class Resolver: +401 """ +402 Helper for resolving columns. +403 +404 This is a class so we can lazily load some things and easily share them across functions. +405 """ +406 +407 def __init__(self, scope, schema): +408 self.scope = scope +409 self.schema = schema +410 self._source_columns = None +411 self._unambiguous_columns = None +412 self._all_columns = None +413 +414 def get_table(self, column_name: str) -> t.Optional[exp.Identifier]: +415 """ +416 Get the table for a column name. +417 +418 Args: +419 column_name: The column name to find the table for. +420 Returns: +421 The table name if it can be found/inferred. +422 """ +423 if self._unambiguous_columns is None: +424 self._unambiguous_columns = self._get_unambiguous_columns( +425 self._get_all_source_columns() 426 ) -427 if len(sources_without_schema) == 1: -428 table_name = sources_without_schema[0] +427 +428 table_name = self._unambiguous_columns.get(column_name) 429 -430 if table_name not in self.scope.selected_sources: -431 return exp.to_identifier(table_name) -432 -433 node, _ = self.scope.selected_sources.get(table_name) -434 -435 if isinstance(node, exp.Subqueryable): -436 while node and node.alias != table_name: -437 node = node.parent +430 if not table_name: +431 sources_without_schema = tuple( +432 source +433 for source, columns in self._get_all_source_columns().items() +434 if not columns or "*" in columns +435 ) +436 if len(sources_without_schema) == 1: +437 table_name = sources_without_schema[0] 438 -439 node_alias = node.args.get("alias") -440 if node_alias: -441 return node_alias.this -442 -443 return exp.to_identifier( -444 table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None -445 ) -446 -447 @property -448 def all_columns(self): -449 """All available columns of all sources in this scope""" -450 if self._all_columns is None: -451 self._all_columns = { -452 column for columns in self._get_all_source_columns().values() for column in columns -453 } -454 return self._all_columns +439 if table_name not in self.scope.selected_sources: +440 return exp.to_identifier(table_name) +441 +442 node, _ = self.scope.selected_sources.get(table_name) +443 +444 if isinstance(node, exp.Subqueryable): +445 while node and node.alias != table_name: +446 node = node.parent +447 +448 node_alias = node.args.get("alias") +449 if node_alias: +450 return node_alias.this +451 +452 return exp.to_identifier( +453 table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None +454 ) 455 -456 def get_source_columns(self, name, only_visible=False): -457 """Resolve the source columns for a given source `name`""" -458 if name not in self.scope.sources: -459 raise OptimizeError(f"Unknown table: {name}") -460 -461 source = self.scope.sources[name] -462 -463 # If referencing a table, return the columns from the schema -464 if isinstance(source, exp.Table): -465 return self.schema.column_names(source, only_visible) -466 -467 if isinstance(source, Scope) and isinstance(source.expression, exp.Values): -468 return source.expression.alias_column_names +456 @property +457 def all_columns(self): +458 """All available columns of all sources in this scope""" +459 if self._all_columns is None: +460 self._all_columns = { +461 column for columns in self._get_all_source_columns().values() for column in columns +462 } +463 return self._all_columns +464 +465 def get_source_columns(self, name, only_visible=False): +466 """Resolve the source columns for a given source `name`""" +467 if name not in self.scope.sources: +468 raise OptimizeError(f"Unknown table: {name}") 469 -470 # Otherwise, if referencing another scope, return that scope's named selects -471 return source.expression.named_selects -472 -473 def _get_all_source_columns(self): -474 if self._source_columns is None: -475 self._source_columns = { -476 k: self.get_source_columns(k) -477 for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources) -478 } -479 return self._source_columns -480 -481 def _get_unambiguous_columns(self, source_columns): -482 """ -483 Find all the unambiguous columns in sources. -484 -485 Args: -486 source_columns (dict): Mapping of names to source columns -487 Returns: -488 dict: Mapping of column name to source name -489 """ -490 if not source_columns: -491 return {} -492 -493 source_columns = list(source_columns.items()) -494 -495 first_table, first_columns = source_columns[0] -496 unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)} -497 all_columns = set(unambiguous_columns) -498 -499 for table, columns in source_columns[1:]: -500 unique = self._find_unique_columns(columns) -501 ambiguous = set(all_columns).intersection(unique) -502 all_columns.update(columns) -503 for column in ambiguous: -504 unambiguous_columns.pop(column, None) -505 for column in unique.difference(ambiguous): -506 unambiguous_columns[column] = table +470 source = self.scope.sources[name] +471 +472 # If referencing a table, return the columns from the schema +473 if isinstance(source, exp.Table): +474 return self.schema.column_names(source, only_visible) +475 +476 if isinstance(source, Scope) and isinstance(source.expression, exp.Values): +477 return source.expression.alias_column_names +478 +479 # Otherwise, if referencing another scope, return that scope's named selects +480 return source.expression.named_selects +481 +482 def _get_all_source_columns(self): +483 if self._source_columns is None: +484 self._source_columns = { +485 k: self.get_source_columns(k) +486 for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources) +487 } +488 return self._source_columns +489 +490 def _get_unambiguous_columns(self, source_columns): +491 """ +492 Find all the unambiguous columns in sources. +493 +494 Args: +495 source_columns (dict): Mapping of names to source columns +496 Returns: +497 dict: Mapping of column name to source name +498 """ +499 if not source_columns: +500 return {} +501 +502 source_columns = list(source_columns.items()) +503 +504 first_table, first_columns = source_columns[0] +505 unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)} +506 all_columns = set(unambiguous_columns) 507 -508 return unambiguous_columns -509 -510 @staticmethod -511 def _find_unique_columns(columns): -512 """ -513 Find the unique columns in a list of columns. -514 -515 Example: -516 >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"])) -517 ['a', 'c'] +508 for table, columns in source_columns[1:]: +509 unique = self._find_unique_columns(columns) +510 ambiguous = set(all_columns).intersection(unique) +511 all_columns.update(columns) +512 for column in ambiguous: +513 unambiguous_columns.pop(column, None) +514 for column in unique.difference(ambiguous): +515 unambiguous_columns[column] = table +516 +517 return unambiguous_columns 518 -519 This is necessary because duplicate column names are ambiguous. -520 """ -521 counts = {} -522 for column in columns: -523 counts[column] = counts.get(column, 0) + 1 -524 return {column for column, count in counts.items() if count == 1} +519 @staticmethod +520 def _find_unique_columns(columns): +521 """ +522 Find the unique columns in a list of columns. +523 +524 Example: +525 >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"])) +526 ['a', 'c'] +527 +528 This is necessary because duplicate column names are ambiguous. +529 """ +530 counts = {} +531 for column in columns: +532 counts[column] = counts.get(column, 0) + 1 +533 return {column for column, count in counts.items() if count == 1}
    @@ -610,45 +619,51 @@
    def - qualify_columns(expression, schema): + qualify_columns(expression, schema, expand_laterals=True):
    -
    11def qualify_columns(expression, schema):
    -12    """
    -13    Rewrite sqlglot AST to have fully qualified columns.
    -14
    -15    Example:
    -16        >>> import sqlglot
    -17        >>> schema = {"tbl": {"col": "INT"}}
    -18        >>> expression = sqlglot.parse_one("SELECT col FROM tbl")
    -19        >>> qualify_columns(expression, schema).sql()
    -20        'SELECT tbl.col AS col FROM tbl'
    -21
    -22    Args:
    -23        expression (sqlglot.Expression): expression to qualify
    -24        schema (dict|sqlglot.optimizer.Schema): Database schema
    -25    Returns:
    -26        sqlglot.Expression: qualified expression
    -27    """
    -28    schema = ensure_schema(schema)
    -29
    -30    for scope in traverse_scope(expression):
    -31        resolver = Resolver(scope, schema)
    -32        _pop_table_column_aliases(scope.ctes)
    -33        _pop_table_column_aliases(scope.derived_tables)
    -34        using_column_tables = _expand_using(scope, resolver)
    -35        _qualify_columns(scope, resolver)
    -36        if not isinstance(scope.expression, exp.UDTF):
    -37            _expand_stars(scope, resolver, using_column_tables)
    -38            _qualify_outputs(scope)
    -39        _expand_alias_refs(scope, resolver)
    -40        _expand_group_by(scope, resolver)
    -41        _expand_order_by(scope)
    -42
    -43    return expression
    +            
    12def qualify_columns(expression, schema, expand_laterals=True):
    +13    """
    +14    Rewrite sqlglot AST to have fully qualified columns.
    +15
    +16    Example:
    +17        >>> import sqlglot
    +18        >>> schema = {"tbl": {"col": "INT"}}
    +19        >>> expression = sqlglot.parse_one("SELECT col FROM tbl")
    +20        >>> qualify_columns(expression, schema).sql()
    +21        'SELECT tbl.col AS col FROM tbl'
    +22
    +23    Args:
    +24        expression (sqlglot.Expression): expression to qualify
    +25        schema (dict|sqlglot.optimizer.Schema): Database schema
    +26    Returns:
    +27        sqlglot.Expression: qualified expression
    +28    """
    +29    schema = ensure_schema(schema)
    +30
    +31    if not schema.mapping and expand_laterals:
    +32        expression = _expand_laterals(expression)
    +33
    +34    for scope in traverse_scope(expression):
    +35        resolver = Resolver(scope, schema)
    +36        _pop_table_column_aliases(scope.ctes)
    +37        _pop_table_column_aliases(scope.derived_tables)
    +38        using_column_tables = _expand_using(scope, resolver)
    +39        _qualify_columns(scope, resolver)
    +40        if not isinstance(scope.expression, exp.UDTF):
    +41            _expand_stars(scope, resolver, using_column_tables)
    +42            _qualify_outputs(scope)
    +43        _expand_alias_refs(scope, resolver)
    +44        _expand_group_by(scope, resolver)
    +45        _expand_order_by(scope)
    +46
    +47    if schema.mapping and expand_laterals:
    +48        expression = _expand_laterals(expression)
    +49
    +50    return expression
     
    @@ -694,19 +709,19 @@
    -
    46def validate_qualify_columns(expression):
    -47    """Raise an `OptimizeError` if any columns aren't qualified"""
    -48    unqualified_columns = []
    -49    for scope in traverse_scope(expression):
    -50        if isinstance(scope.expression, exp.Select):
    -51            unqualified_columns.extend(scope.unqualified_columns)
    -52            if scope.external_columns and not scope.is_correlated_subquery:
    -53                column = scope.external_columns[0]
    -54                raise OptimizeError(f"Unknown table: '{column.table}' for column '{column}'")
    -55
    -56    if unqualified_columns:
    -57        raise OptimizeError(f"Ambiguous columns: {unqualified_columns}")
    -58    return expression
    +            
    53def validate_qualify_columns(expression):
    +54    """Raise an `OptimizeError` if any columns aren't qualified"""
    +55    unqualified_columns = []
    +56    for scope in traverse_scope(expression):
    +57        if isinstance(scope.expression, exp.Select):
    +58            unqualified_columns.extend(scope.unqualified_columns)
    +59            if scope.external_columns and not scope.is_correlated_subquery:
    +60                column = scope.external_columns[0]
    +61                raise OptimizeError(f"Unknown table: '{column.table}' for column '{column}'")
    +62
    +63    if unqualified_columns:
    +64        raise OptimizeError(f"Ambiguous columns: {unqualified_columns}")
    +65    return expression
     
    @@ -726,140 +741,140 @@
    -
    392class Resolver:
    -393    """
    -394    Helper for resolving columns.
    -395
    -396    This is a class so we can lazily load some things and easily share them across functions.
    -397    """
    -398
    -399    def __init__(self, scope, schema):
    -400        self.scope = scope
    -401        self.schema = schema
    -402        self._source_columns = None
    -403        self._unambiguous_columns = None
    -404        self._all_columns = None
    -405
    -406    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    -407        """
    -408        Get the table for a column name.
    -409
    -410        Args:
    -411            column_name: The column name to find the table for.
    -412        Returns:
    -413            The table name if it can be found/inferred.
    -414        """
    -415        if self._unambiguous_columns is None:
    -416            self._unambiguous_columns = self._get_unambiguous_columns(
    -417                self._get_all_source_columns()
    -418            )
    -419
    -420        table_name = self._unambiguous_columns.get(column_name)
    -421
    -422        if not table_name:
    -423            sources_without_schema = tuple(
    -424                source
    -425                for source, columns in self._get_all_source_columns().items()
    -426                if not columns or "*" in columns
    +            
    401class Resolver:
    +402    """
    +403    Helper for resolving columns.
    +404
    +405    This is a class so we can lazily load some things and easily share them across functions.
    +406    """
    +407
    +408    def __init__(self, scope, schema):
    +409        self.scope = scope
    +410        self.schema = schema
    +411        self._source_columns = None
    +412        self._unambiguous_columns = None
    +413        self._all_columns = None
    +414
    +415    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    +416        """
    +417        Get the table for a column name.
    +418
    +419        Args:
    +420            column_name: The column name to find the table for.
    +421        Returns:
    +422            The table name if it can be found/inferred.
    +423        """
    +424        if self._unambiguous_columns is None:
    +425            self._unambiguous_columns = self._get_unambiguous_columns(
    +426                self._get_all_source_columns()
     427            )
    -428            if len(sources_without_schema) == 1:
    -429                table_name = sources_without_schema[0]
    +428
    +429        table_name = self._unambiguous_columns.get(column_name)
     430
    -431        if table_name not in self.scope.selected_sources:
    -432            return exp.to_identifier(table_name)
    -433
    -434        node, _ = self.scope.selected_sources.get(table_name)
    -435
    -436        if isinstance(node, exp.Subqueryable):
    -437            while node and node.alias != table_name:
    -438                node = node.parent
    +431        if not table_name:
    +432            sources_without_schema = tuple(
    +433                source
    +434                for source, columns in self._get_all_source_columns().items()
    +435                if not columns or "*" in columns
    +436            )
    +437            if len(sources_without_schema) == 1:
    +438                table_name = sources_without_schema[0]
     439
    -440        node_alias = node.args.get("alias")
    -441        if node_alias:
    -442            return node_alias.this
    -443
    -444        return exp.to_identifier(
    -445            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    -446        )
    -447
    -448    @property
    -449    def all_columns(self):
    -450        """All available columns of all sources in this scope"""
    -451        if self._all_columns is None:
    -452            self._all_columns = {
    -453                column for columns in self._get_all_source_columns().values() for column in columns
    -454            }
    -455        return self._all_columns
    +440        if table_name not in self.scope.selected_sources:
    +441            return exp.to_identifier(table_name)
    +442
    +443        node, _ = self.scope.selected_sources.get(table_name)
    +444
    +445        if isinstance(node, exp.Subqueryable):
    +446            while node and node.alias != table_name:
    +447                node = node.parent
    +448
    +449        node_alias = node.args.get("alias")
    +450        if node_alias:
    +451            return node_alias.this
    +452
    +453        return exp.to_identifier(
    +454            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    +455        )
     456
    -457    def get_source_columns(self, name, only_visible=False):
    -458        """Resolve the source columns for a given source `name`"""
    -459        if name not in self.scope.sources:
    -460            raise OptimizeError(f"Unknown table: {name}")
    -461
    -462        source = self.scope.sources[name]
    -463
    -464        # If referencing a table, return the columns from the schema
    -465        if isinstance(source, exp.Table):
    -466            return self.schema.column_names(source, only_visible)
    -467
    -468        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    -469            return source.expression.alias_column_names
    +457    @property
    +458    def all_columns(self):
    +459        """All available columns of all sources in this scope"""
    +460        if self._all_columns is None:
    +461            self._all_columns = {
    +462                column for columns in self._get_all_source_columns().values() for column in columns
    +463            }
    +464        return self._all_columns
    +465
    +466    def get_source_columns(self, name, only_visible=False):
    +467        """Resolve the source columns for a given source `name`"""
    +468        if name not in self.scope.sources:
    +469            raise OptimizeError(f"Unknown table: {name}")
     470
    -471        # Otherwise, if referencing another scope, return that scope's named selects
    -472        return source.expression.named_selects
    -473
    -474    def _get_all_source_columns(self):
    -475        if self._source_columns is None:
    -476            self._source_columns = {
    -477                k: self.get_source_columns(k)
    -478                for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources)
    -479            }
    -480        return self._source_columns
    -481
    -482    def _get_unambiguous_columns(self, source_columns):
    -483        """
    -484        Find all the unambiguous columns in sources.
    -485
    -486        Args:
    -487            source_columns (dict): Mapping of names to source columns
    -488        Returns:
    -489            dict: Mapping of column name to source name
    -490        """
    -491        if not source_columns:
    -492            return {}
    -493
    -494        source_columns = list(source_columns.items())
    -495
    -496        first_table, first_columns = source_columns[0]
    -497        unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)}
    -498        all_columns = set(unambiguous_columns)
    -499
    -500        for table, columns in source_columns[1:]:
    -501            unique = self._find_unique_columns(columns)
    -502            ambiguous = set(all_columns).intersection(unique)
    -503            all_columns.update(columns)
    -504            for column in ambiguous:
    -505                unambiguous_columns.pop(column, None)
    -506            for column in unique.difference(ambiguous):
    -507                unambiguous_columns[column] = table
    +471        source = self.scope.sources[name]
    +472
    +473        # If referencing a table, return the columns from the schema
    +474        if isinstance(source, exp.Table):
    +475            return self.schema.column_names(source, only_visible)
    +476
    +477        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    +478            return source.expression.alias_column_names
    +479
    +480        # Otherwise, if referencing another scope, return that scope's named selects
    +481        return source.expression.named_selects
    +482
    +483    def _get_all_source_columns(self):
    +484        if self._source_columns is None:
    +485            self._source_columns = {
    +486                k: self.get_source_columns(k)
    +487                for k in itertools.chain(self.scope.selected_sources, self.scope.lateral_sources)
    +488            }
    +489        return self._source_columns
    +490
    +491    def _get_unambiguous_columns(self, source_columns):
    +492        """
    +493        Find all the unambiguous columns in sources.
    +494
    +495        Args:
    +496            source_columns (dict): Mapping of names to source columns
    +497        Returns:
    +498            dict: Mapping of column name to source name
    +499        """
    +500        if not source_columns:
    +501            return {}
    +502
    +503        source_columns = list(source_columns.items())
    +504
    +505        first_table, first_columns = source_columns[0]
    +506        unambiguous_columns = {col: first_table for col in self._find_unique_columns(first_columns)}
    +507        all_columns = set(unambiguous_columns)
     508
    -509        return unambiguous_columns
    -510
    -511    @staticmethod
    -512    def _find_unique_columns(columns):
    -513        """
    -514        Find the unique columns in a list of columns.
    -515
    -516        Example:
    -517            >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))
    -518            ['a', 'c']
    +509        for table, columns in source_columns[1:]:
    +510            unique = self._find_unique_columns(columns)
    +511            ambiguous = set(all_columns).intersection(unique)
    +512            all_columns.update(columns)
    +513            for column in ambiguous:
    +514                unambiguous_columns.pop(column, None)
    +515            for column in unique.difference(ambiguous):
    +516                unambiguous_columns[column] = table
    +517
    +518        return unambiguous_columns
     519
    -520        This is necessary because duplicate column names are ambiguous.
    -521        """
    -522        counts = {}
    -523        for column in columns:
    -524            counts[column] = counts.get(column, 0) + 1
    -525        return {column for column, count in counts.items() if count == 1}
    +520    @staticmethod
    +521    def _find_unique_columns(columns):
    +522        """
    +523        Find the unique columns in a list of columns.
    +524
    +525        Example:
    +526            >>> sorted(Resolver._find_unique_columns(["a", "b", "b", "c"]))
    +527            ['a', 'c']
    +528
    +529        This is necessary because duplicate column names are ambiguous.
    +530        """
    +531        counts = {}
    +532        for column in columns:
    +533            counts[column] = counts.get(column, 0) + 1
    +534        return {column for column, count in counts.items() if count == 1}
     
    @@ -879,12 +894,12 @@
    -
    399    def __init__(self, scope, schema):
    -400        self.scope = scope
    -401        self.schema = schema
    -402        self._source_columns = None
    -403        self._unambiguous_columns = None
    -404        self._all_columns = None
    +            
    408    def __init__(self, scope, schema):
    +409        self.scope = scope
    +410        self.schema = schema
    +411        self._source_columns = None
    +412        self._unambiguous_columns = None
    +413        self._all_columns = None
     
    @@ -902,47 +917,47 @@
    -
    406    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    -407        """
    -408        Get the table for a column name.
    -409
    -410        Args:
    -411            column_name: The column name to find the table for.
    -412        Returns:
    -413            The table name if it can be found/inferred.
    -414        """
    -415        if self._unambiguous_columns is None:
    -416            self._unambiguous_columns = self._get_unambiguous_columns(
    -417                self._get_all_source_columns()
    -418            )
    -419
    -420        table_name = self._unambiguous_columns.get(column_name)
    -421
    -422        if not table_name:
    -423            sources_without_schema = tuple(
    -424                source
    -425                for source, columns in self._get_all_source_columns().items()
    -426                if not columns or "*" in columns
    +            
    415    def get_table(self, column_name: str) -> t.Optional[exp.Identifier]:
    +416        """
    +417        Get the table for a column name.
    +418
    +419        Args:
    +420            column_name: The column name to find the table for.
    +421        Returns:
    +422            The table name if it can be found/inferred.
    +423        """
    +424        if self._unambiguous_columns is None:
    +425            self._unambiguous_columns = self._get_unambiguous_columns(
    +426                self._get_all_source_columns()
     427            )
    -428            if len(sources_without_schema) == 1:
    -429                table_name = sources_without_schema[0]
    +428
    +429        table_name = self._unambiguous_columns.get(column_name)
     430
    -431        if table_name not in self.scope.selected_sources:
    -432            return exp.to_identifier(table_name)
    -433
    -434        node, _ = self.scope.selected_sources.get(table_name)
    -435
    -436        if isinstance(node, exp.Subqueryable):
    -437            while node and node.alias != table_name:
    -438                node = node.parent
    +431        if not table_name:
    +432            sources_without_schema = tuple(
    +433                source
    +434                for source, columns in self._get_all_source_columns().items()
    +435                if not columns or "*" in columns
    +436            )
    +437            if len(sources_without_schema) == 1:
    +438                table_name = sources_without_schema[0]
     439
    -440        node_alias = node.args.get("alias")
    -441        if node_alias:
    -442            return node_alias.this
    -443
    -444        return exp.to_identifier(
    -445            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    -446        )
    +440        if table_name not in self.scope.selected_sources:
    +441            return exp.to_identifier(table_name)
    +442
    +443        node, _ = self.scope.selected_sources.get(table_name)
    +444
    +445        if isinstance(node, exp.Subqueryable):
    +446            while node and node.alias != table_name:
    +447                node = node.parent
    +448
    +449        node_alias = node.args.get("alias")
    +450        if node_alias:
    +451            return node_alias.this
    +452
    +453        return exp.to_identifier(
    +454            table_name, quoted=node.this.quoted if isinstance(node, exp.Table) else None
    +455        )
     
    @@ -987,22 +1002,22 @@
    -
    457    def get_source_columns(self, name, only_visible=False):
    -458        """Resolve the source columns for a given source `name`"""
    -459        if name not in self.scope.sources:
    -460            raise OptimizeError(f"Unknown table: {name}")
    -461
    -462        source = self.scope.sources[name]
    -463
    -464        # If referencing a table, return the columns from the schema
    -465        if isinstance(source, exp.Table):
    -466            return self.schema.column_names(source, only_visible)
    -467
    -468        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    -469            return source.expression.alias_column_names
    +            
    466    def get_source_columns(self, name, only_visible=False):
    +467        """Resolve the source columns for a given source `name`"""
    +468        if name not in self.scope.sources:
    +469            raise OptimizeError(f"Unknown table: {name}")
     470
    -471        # Otherwise, if referencing another scope, return that scope's named selects
    -472        return source.expression.named_selects
    +471        source = self.scope.sources[name]
    +472
    +473        # If referencing a table, return the columns from the schema
    +474        if isinstance(source, exp.Table):
    +475            return self.schema.column_names(source, only_visible)
    +476
    +477        if isinstance(source, Scope) and isinstance(source.expression, exp.Values):
    +478            return source.expression.alias_column_names
    +479
    +480        # Otherwise, if referencing another scope, return that scope's named selects
    +481        return source.expression.named_selects
     
    diff --git a/docs/sqlglot/optimizer/simplify.html b/docs/sqlglot/optimizer/simplify.html index 5ba4a5e..598977c 100644 --- a/docs/sqlglot/optimizer/simplify.html +++ b/docs/sqlglot/optimizer/simplify.html @@ -175,449 +175,458 @@
    60 return exp.and_( 61 exp.GTE(this=expression.this.copy(), expression=expression.args["low"]), 62 exp.LTE(this=expression.this.copy(), expression=expression.args["high"]), - 63 ) - 64 return expression - 65 + 63 copy=False, + 64 ) + 65 return expression 66 - 67def simplify_not(expression): - 68 """ - 69 Demorgan's Law - 70 NOT (x OR y) -> NOT x AND NOT y - 71 NOT (x AND y) -> NOT x OR NOT y - 72 """ - 73 if isinstance(expression, exp.Not): - 74 if is_null(expression.this): - 75 return exp.null() - 76 if isinstance(expression.this, exp.Paren): - 77 condition = expression.this.unnest() - 78 if isinstance(condition, exp.And): - 79 return exp.or_(exp.not_(condition.left), exp.not_(condition.right)) - 80 if isinstance(condition, exp.Or): - 81 return exp.and_(exp.not_(condition.left), exp.not_(condition.right)) - 82 if is_null(condition): - 83 return exp.null() - 84 if always_true(expression.this): - 85 return exp.false() - 86 if is_false(expression.this): - 87 return exp.true() - 88 if isinstance(expression.this, exp.Not): - 89 # double negation - 90 # NOT NOT x -> x - 91 return expression.this.this - 92 return expression - 93 - 94 - 95def flatten(expression): - 96 """ - 97 A AND (B AND C) -> A AND B AND C - 98 A OR (B OR C) -> A OR B OR C - 99 """ -100 if isinstance(expression, exp.Connector): -101 for node in expression.args.values(): -102 child = node.unnest() -103 if isinstance(child, expression.__class__): -104 node.replace(child) -105 return expression -106 -107 -108def simplify_connectors(expression, root=True): -109 def _simplify_connectors(expression, left, right): -110 if left == right: -111 return left -112 if isinstance(expression, exp.And): -113 if is_false(left) or is_false(right): -114 return exp.false() -115 if is_null(left) or is_null(right): -116 return exp.null() -117 if always_true(left) and always_true(right): -118 return exp.true() -119 if always_true(left): -120 return right -121 if always_true(right): -122 return left -123 return _simplify_comparison(expression, left, right) -124 elif isinstance(expression, exp.Or): -125 if always_true(left) or always_true(right): -126 return exp.true() -127 if is_false(left) and is_false(right): -128 return exp.false() -129 if ( -130 (is_null(left) and is_null(right)) -131 or (is_null(left) and is_false(right)) -132 or (is_false(left) and is_null(right)) -133 ): -134 return exp.null() -135 if is_false(left): -136 return right -137 if is_false(right): -138 return left -139 return _simplify_comparison(expression, left, right, or_=True) -140 -141 if isinstance(expression, exp.Connector): -142 return _flat_simplify(expression, _simplify_connectors, root) -143 return expression -144 -145 -146LT_LTE = (exp.LT, exp.LTE) -147GT_GTE = (exp.GT, exp.GTE) -148 -149COMPARISONS = ( -150 *LT_LTE, -151 *GT_GTE, -152 exp.EQ, -153 exp.NEQ, -154) -155 -156INVERSE_COMPARISONS = { -157 exp.LT: exp.GT, -158 exp.GT: exp.LT, -159 exp.LTE: exp.GTE, -160 exp.GTE: exp.LTE, -161} -162 -163 -164def _simplify_comparison(expression, left, right, or_=False): -165 if isinstance(left, COMPARISONS) and isinstance(right, COMPARISONS): -166 ll, lr = left.args.values() -167 rl, rr = right.args.values() -168 -169 largs = {ll, lr} -170 rargs = {rl, rr} + 67 + 68def simplify_not(expression): + 69 """ + 70 Demorgan's Law + 71 NOT (x OR y) -> NOT x AND NOT y + 72 NOT (x AND y) -> NOT x OR NOT y + 73 """ + 74 if isinstance(expression, exp.Not): + 75 if is_null(expression.this): + 76 return exp.null() + 77 if isinstance(expression.this, exp.Paren): + 78 condition = expression.this.unnest() + 79 if isinstance(condition, exp.And): + 80 return exp.or_( + 81 exp.not_(condition.left, copy=False), + 82 exp.not_(condition.right, copy=False), + 83 copy=False, + 84 ) + 85 if isinstance(condition, exp.Or): + 86 return exp.and_( + 87 exp.not_(condition.left, copy=False), + 88 exp.not_(condition.right, copy=False), + 89 copy=False, + 90 ) + 91 if is_null(condition): + 92 return exp.null() + 93 if always_true(expression.this): + 94 return exp.false() + 95 if is_false(expression.this): + 96 return exp.true() + 97 if isinstance(expression.this, exp.Not): + 98 # double negation + 99 # NOT NOT x -> x +100 return expression.this.this +101 return expression +102 +103 +104def flatten(expression): +105 """ +106 A AND (B AND C) -> A AND B AND C +107 A OR (B OR C) -> A OR B OR C +108 """ +109 if isinstance(expression, exp.Connector): +110 for node in expression.args.values(): +111 child = node.unnest() +112 if isinstance(child, expression.__class__): +113 node.replace(child) +114 return expression +115 +116 +117def simplify_connectors(expression, root=True): +118 def _simplify_connectors(expression, left, right): +119 if left == right: +120 return left +121 if isinstance(expression, exp.And): +122 if is_false(left) or is_false(right): +123 return exp.false() +124 if is_null(left) or is_null(right): +125 return exp.null() +126 if always_true(left) and always_true(right): +127 return exp.true() +128 if always_true(left): +129 return right +130 if always_true(right): +131 return left +132 return _simplify_comparison(expression, left, right) +133 elif isinstance(expression, exp.Or): +134 if always_true(left) or always_true(right): +135 return exp.true() +136 if is_false(left) and is_false(right): +137 return exp.false() +138 if ( +139 (is_null(left) and is_null(right)) +140 or (is_null(left) and is_false(right)) +141 or (is_false(left) and is_null(right)) +142 ): +143 return exp.null() +144 if is_false(left): +145 return right +146 if is_false(right): +147 return left +148 return _simplify_comparison(expression, left, right, or_=True) +149 +150 if isinstance(expression, exp.Connector): +151 return _flat_simplify(expression, _simplify_connectors, root) +152 return expression +153 +154 +155LT_LTE = (exp.LT, exp.LTE) +156GT_GTE = (exp.GT, exp.GTE) +157 +158COMPARISONS = ( +159 *LT_LTE, +160 *GT_GTE, +161 exp.EQ, +162 exp.NEQ, +163) +164 +165INVERSE_COMPARISONS = { +166 exp.LT: exp.GT, +167 exp.GT: exp.LT, +168 exp.LTE: exp.GTE, +169 exp.GTE: exp.LTE, +170} 171 -172 matching = largs & rargs -173 columns = {m for m in matching if isinstance(m, exp.Column)} -174 -175 if matching and columns: -176 try: -177 l = first(largs - columns) -178 r = first(rargs - columns) -179 except StopIteration: -180 return expression -181 -182 # make sure the comparison is always of the form x > 1 instead of 1 < x -183 if left.__class__ in INVERSE_COMPARISONS and l == ll: -184 left = INVERSE_COMPARISONS[left.__class__](this=lr, expression=ll) -185 if right.__class__ in INVERSE_COMPARISONS and r == rl: -186 right = INVERSE_COMPARISONS[right.__class__](this=rr, expression=rl) -187 -188 if l.is_number and r.is_number: -189 l = float(l.name) -190 r = float(r.name) -191 elif l.is_string and r.is_string: -192 l = l.name -193 r = r.name -194 else: -195 return None +172 +173def _simplify_comparison(expression, left, right, or_=False): +174 if isinstance(left, COMPARISONS) and isinstance(right, COMPARISONS): +175 ll, lr = left.args.values() +176 rl, rr = right.args.values() +177 +178 largs = {ll, lr} +179 rargs = {rl, rr} +180 +181 matching = largs & rargs +182 columns = {m for m in matching if isinstance(m, exp.Column)} +183 +184 if matching and columns: +185 try: +186 l = first(largs - columns) +187 r = first(rargs - columns) +188 except StopIteration: +189 return expression +190 +191 # make sure the comparison is always of the form x > 1 instead of 1 < x +192 if left.__class__ in INVERSE_COMPARISONS and l == ll: +193 left = INVERSE_COMPARISONS[left.__class__](this=lr, expression=ll) +194 if right.__class__ in INVERSE_COMPARISONS and r == rl: +195 right = INVERSE_COMPARISONS[right.__class__](this=rr, expression=rl) 196 -197 for (a, av), (b, bv) in itertools.permutations(((left, l), (right, r))): -198 if isinstance(a, LT_LTE) and isinstance(b, LT_LTE): -199 return left if (av > bv if or_ else av <= bv) else right -200 if isinstance(a, GT_GTE) and isinstance(b, GT_GTE): -201 return left if (av < bv if or_ else av >= bv) else right -202 -203 # we can't ever shortcut to true because the column could be null -204 if not or_: -205 if isinstance(a, exp.LT) and isinstance(b, GT_GTE): -206 if av <= bv: -207 return exp.false() -208 elif isinstance(a, exp.GT) and isinstance(b, LT_LTE): -209 if av >= bv: -210 return exp.false() -211 elif isinstance(a, exp.EQ): -212 if isinstance(b, exp.LT): -213 return exp.false() if av >= bv else a -214 if isinstance(b, exp.LTE): -215 return exp.false() if av > bv else a -216 if isinstance(b, exp.GT): -217 return exp.false() if av <= bv else a -218 if isinstance(b, exp.GTE): -219 return exp.false() if av < bv else a -220 if isinstance(b, exp.NEQ): -221 return exp.false() if av == bv else a -222 return None -223 -224 -225def remove_compliments(expression, root=True): -226 """ -227 Removing compliments. -228 -229 A AND NOT A -> FALSE -230 A OR NOT A -> TRUE -231 """ -232 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): -233 compliment = exp.false() if isinstance(expression, exp.And) else exp.true() -234 -235 for a, b in itertools.permutations(expression.flatten(), 2): -236 if is_complement(a, b): -237 return compliment -238 return expression -239 -240 -241def uniq_sort(expression, cache=None, root=True): -242 """ -243 Uniq and sort a connector. -244 -245 C AND A AND B AND B -> A AND B AND C -246 """ -247 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): -248 result_func = exp.and_ if isinstance(expression, exp.And) else exp.or_ -249 flattened = tuple(expression.flatten()) -250 deduped = {GENERATOR.generate(e, cache): e for e in flattened} -251 arr = tuple(deduped.items()) -252 -253 # check if the operands are already sorted, if not sort them -254 # A AND C AND B -> A AND B AND C -255 for i, (sql, e) in enumerate(arr[1:]): -256 if sql < arr[i][0]: -257 expression = result_func(*(e for _, e in sorted(arr))) -258 break -259 else: -260 # we didn't have to sort but maybe we need to dedup -261 if len(deduped) < len(flattened): -262 expression = result_func(*deduped.values()) -263 -264 return expression -265 -266 -267def absorb_and_eliminate(expression, root=True): -268 """ -269 absorption: -270 A AND (A OR B) -> A -271 A OR (A AND B) -> A -272 A AND (NOT A OR B) -> A AND B -273 A OR (NOT A AND B) -> A OR B -274 elimination: -275 (A AND B) OR (A AND NOT B) -> A -276 (A OR B) AND (A OR NOT B) -> A -277 """ -278 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): -279 kind = exp.Or if isinstance(expression, exp.And) else exp.And -280 -281 for a, b in itertools.permutations(expression.flatten(), 2): -282 if isinstance(a, kind): -283 aa, ab = a.unnest_operands() -284 -285 # absorb -286 if is_complement(b, aa): -287 aa.replace(exp.true() if kind == exp.And else exp.false()) -288 elif is_complement(b, ab): -289 ab.replace(exp.true() if kind == exp.And else exp.false()) -290 elif (set(b.flatten()) if isinstance(b, kind) else {b}) < set(a.flatten()): -291 a.replace(exp.false() if kind == exp.And else exp.true()) -292 elif isinstance(b, kind): -293 # eliminate -294 rhs = b.unnest_operands() -295 ba, bb = rhs -296 -297 if aa in rhs and (is_complement(ab, ba) or is_complement(ab, bb)): -298 a.replace(aa) -299 b.replace(aa) -300 elif ab in rhs and (is_complement(aa, ba) or is_complement(aa, bb)): -301 a.replace(ab) -302 b.replace(ab) -303 -304 return expression +197 if l.is_number and r.is_number: +198 l = float(l.name) +199 r = float(r.name) +200 elif l.is_string and r.is_string: +201 l = l.name +202 r = r.name +203 else: +204 return None +205 +206 for (a, av), (b, bv) in itertools.permutations(((left, l), (right, r))): +207 if isinstance(a, LT_LTE) and isinstance(b, LT_LTE): +208 return left if (av > bv if or_ else av <= bv) else right +209 if isinstance(a, GT_GTE) and isinstance(b, GT_GTE): +210 return left if (av < bv if or_ else av >= bv) else right +211 +212 # we can't ever shortcut to true because the column could be null +213 if not or_: +214 if isinstance(a, exp.LT) and isinstance(b, GT_GTE): +215 if av <= bv: +216 return exp.false() +217 elif isinstance(a, exp.GT) and isinstance(b, LT_LTE): +218 if av >= bv: +219 return exp.false() +220 elif isinstance(a, exp.EQ): +221 if isinstance(b, exp.LT): +222 return exp.false() if av >= bv else a +223 if isinstance(b, exp.LTE): +224 return exp.false() if av > bv else a +225 if isinstance(b, exp.GT): +226 return exp.false() if av <= bv else a +227 if isinstance(b, exp.GTE): +228 return exp.false() if av < bv else a +229 if isinstance(b, exp.NEQ): +230 return exp.false() if av == bv else a +231 return None +232 +233 +234def remove_compliments(expression, root=True): +235 """ +236 Removing compliments. +237 +238 A AND NOT A -> FALSE +239 A OR NOT A -> TRUE +240 """ +241 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): +242 compliment = exp.false() if isinstance(expression, exp.And) else exp.true() +243 +244 for a, b in itertools.permutations(expression.flatten(), 2): +245 if is_complement(a, b): +246 return compliment +247 return expression +248 +249 +250def uniq_sort(expression, cache=None, root=True): +251 """ +252 Uniq and sort a connector. +253 +254 C AND A AND B AND B -> A AND B AND C +255 """ +256 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): +257 result_func = exp.and_ if isinstance(expression, exp.And) else exp.or_ +258 flattened = tuple(expression.flatten()) +259 deduped = {GENERATOR.generate(e, cache): e for e in flattened} +260 arr = tuple(deduped.items()) +261 +262 # check if the operands are already sorted, if not sort them +263 # A AND C AND B -> A AND B AND C +264 for i, (sql, e) in enumerate(arr[1:]): +265 if sql < arr[i][0]: +266 expression = result_func(*(e for _, e in sorted(arr)), copy=False) +267 break +268 else: +269 # we didn't have to sort but maybe we need to dedup +270 if len(deduped) < len(flattened): +271 expression = result_func(*deduped.values(), copy=False) +272 +273 return expression +274 +275 +276def absorb_and_eliminate(expression, root=True): +277 """ +278 absorption: +279 A AND (A OR B) -> A +280 A OR (A AND B) -> A +281 A AND (NOT A OR B) -> A AND B +282 A OR (NOT A AND B) -> A OR B +283 elimination: +284 (A AND B) OR (A AND NOT B) -> A +285 (A OR B) AND (A OR NOT B) -> A +286 """ +287 if isinstance(expression, exp.Connector) and (root or not expression.same_parent): +288 kind = exp.Or if isinstance(expression, exp.And) else exp.And +289 +290 for a, b in itertools.permutations(expression.flatten(), 2): +291 if isinstance(a, kind): +292 aa, ab = a.unnest_operands() +293 +294 # absorb +295 if is_complement(b, aa): +296 aa.replace(exp.true() if kind == exp.And else exp.false()) +297 elif is_complement(b, ab): +298 ab.replace(exp.true() if kind == exp.And else exp.false()) +299 elif (set(b.flatten()) if isinstance(b, kind) else {b}) < set(a.flatten()): +300 a.replace(exp.false() if kind == exp.And else exp.true()) +301 elif isinstance(b, kind): +302 # eliminate +303 rhs = b.unnest_operands() +304 ba, bb = rhs 305 -306 -307def simplify_literals(expression, root=True): -308 if isinstance(expression, exp.Binary) and not isinstance(expression, exp.Connector): -309 return _flat_simplify(expression, _simplify_binary, root) -310 elif isinstance(expression, exp.Neg): -311 this = expression.this -312 if this.is_number: -313 value = this.name -314 if value[0] == "-": -315 return exp.Literal.number(value[1:]) -316 return exp.Literal.number(f"-{value}") -317 -318 return expression -319 -320 -321def _simplify_binary(expression, a, b): -322 if isinstance(expression, exp.Is): -323 if isinstance(b, exp.Not): -324 c = b.this -325 not_ = True -326 else: -327 c = b -328 not_ = False +306 if aa in rhs and (is_complement(ab, ba) or is_complement(ab, bb)): +307 a.replace(aa) +308 b.replace(aa) +309 elif ab in rhs and (is_complement(aa, ba) or is_complement(aa, bb)): +310 a.replace(ab) +311 b.replace(ab) +312 +313 return expression +314 +315 +316def simplify_literals(expression, root=True): +317 if isinstance(expression, exp.Binary) and not isinstance(expression, exp.Connector): +318 return _flat_simplify(expression, _simplify_binary, root) +319 elif isinstance(expression, exp.Neg): +320 this = expression.this +321 if this.is_number: +322 value = this.name +323 if value[0] == "-": +324 return exp.Literal.number(value[1:]) +325 return exp.Literal.number(f"-{value}") +326 +327 return expression +328 329 -330 if is_null(c): -331 if isinstance(a, exp.Literal): -332 return exp.true() if not_ else exp.false() -333 if is_null(a): -334 return exp.false() if not_ else exp.true() -335 elif isinstance(expression, (exp.NullSafeEQ, exp.NullSafeNEQ)): -336 return None -337 elif is_null(a) or is_null(b): -338 return exp.null() -339 -340 if a.is_number and b.is_number: -341 a = int(a.name) if a.is_int else Decimal(a.name) -342 b = int(b.name) if b.is_int else Decimal(b.name) -343 -344 if isinstance(expression, exp.Add): -345 return exp.Literal.number(a + b) -346 if isinstance(expression, exp.Sub): -347 return exp.Literal.number(a - b) -348 if isinstance(expression, exp.Mul): -349 return exp.Literal.number(a * b) -350 if isinstance(expression, exp.Div): -351 # engines have differing int div behavior so intdiv is not safe -352 if isinstance(a, int) and isinstance(b, int): -353 return None -354 return exp.Literal.number(a / b) -355 -356 boolean = eval_boolean(expression, a, b) -357 -358 if boolean: -359 return boolean -360 elif a.is_string and b.is_string: -361 boolean = eval_boolean(expression, a.this, b.this) -362 -363 if boolean: -364 return boolean -365 elif isinstance(a, exp.Cast) and isinstance(b, exp.Interval): -366 a, b = extract_date(a), extract_interval(b) -367 if a and b: -368 if isinstance(expression, exp.Add): -369 return date_literal(a + b) -370 if isinstance(expression, exp.Sub): -371 return date_literal(a - b) -372 elif isinstance(a, exp.Interval) and isinstance(b, exp.Cast): -373 a, b = extract_interval(a), extract_date(b) -374 # you cannot subtract a date from an interval -375 if a and b and isinstance(expression, exp.Add): -376 return date_literal(a + b) -377 -378 return None -379 -380 -381def simplify_parens(expression): -382 if ( -383 isinstance(expression, exp.Paren) -384 and not isinstance(expression.this, exp.Select) -385 and ( -386 not isinstance(expression.parent, (exp.Condition, exp.Binary)) -387 or isinstance(expression.this, exp.Predicate) -388 or not isinstance(expression.this, exp.Binary) -389 ) -390 ): -391 return expression.this -392 return expression -393 -394 -395def remove_where_true(expression): -396 for where in expression.find_all(exp.Where): -397 if always_true(where.this): -398 where.parent.set("where", None) -399 for join in expression.find_all(exp.Join): -400 if always_true(join.args.get("on")): -401 join.set("kind", "CROSS") -402 join.set("on", None) +330def _simplify_binary(expression, a, b): +331 if isinstance(expression, exp.Is): +332 if isinstance(b, exp.Not): +333 c = b.this +334 not_ = True +335 else: +336 c = b +337 not_ = False +338 +339 if is_null(c): +340 if isinstance(a, exp.Literal): +341 return exp.true() if not_ else exp.false() +342 if is_null(a): +343 return exp.false() if not_ else exp.true() +344 elif isinstance(expression, (exp.NullSafeEQ, exp.NullSafeNEQ)): +345 return None +346 elif is_null(a) or is_null(b): +347 return exp.null() +348 +349 if a.is_number and b.is_number: +350 a = int(a.name) if a.is_int else Decimal(a.name) +351 b = int(b.name) if b.is_int else Decimal(b.name) +352 +353 if isinstance(expression, exp.Add): +354 return exp.Literal.number(a + b) +355 if isinstance(expression, exp.Sub): +356 return exp.Literal.number(a - b) +357 if isinstance(expression, exp.Mul): +358 return exp.Literal.number(a * b) +359 if isinstance(expression, exp.Div): +360 # engines have differing int div behavior so intdiv is not safe +361 if isinstance(a, int) and isinstance(b, int): +362 return None +363 return exp.Literal.number(a / b) +364 +365 boolean = eval_boolean(expression, a, b) +366 +367 if boolean: +368 return boolean +369 elif a.is_string and b.is_string: +370 boolean = eval_boolean(expression, a.this, b.this) +371 +372 if boolean: +373 return boolean +374 elif isinstance(a, exp.Cast) and isinstance(b, exp.Interval): +375 a, b = extract_date(a), extract_interval(b) +376 if a and b: +377 if isinstance(expression, exp.Add): +378 return date_literal(a + b) +379 if isinstance(expression, exp.Sub): +380 return date_literal(a - b) +381 elif isinstance(a, exp.Interval) and isinstance(b, exp.Cast): +382 a, b = extract_interval(a), extract_date(b) +383 # you cannot subtract a date from an interval +384 if a and b and isinstance(expression, exp.Add): +385 return date_literal(a + b) +386 +387 return None +388 +389 +390def simplify_parens(expression): +391 if ( +392 isinstance(expression, exp.Paren) +393 and not isinstance(expression.this, exp.Select) +394 and ( +395 not isinstance(expression.parent, (exp.Condition, exp.Binary)) +396 or isinstance(expression.this, exp.Predicate) +397 or not isinstance(expression.this, exp.Binary) +398 ) +399 ): +400 return expression.this +401 return expression +402 403 -404 -405def always_true(expression): -406 return (isinstance(expression, exp.Boolean) and expression.this) or isinstance( -407 expression, exp.Literal -408 ) -409 -410 -411def is_complement(a, b): -412 return isinstance(b, exp.Not) and b.this == a +404def remove_where_true(expression): +405 for where in expression.find_all(exp.Where): +406 if always_true(where.this): +407 where.parent.set("where", None) +408 for join in expression.find_all(exp.Join): +409 if always_true(join.args.get("on")): +410 join.set("kind", "CROSS") +411 join.set("on", None) +412 413 -414 -415def is_false(a: exp.Expression) -> bool: -416 return type(a) is exp.Boolean and not a.this -417 +414def always_true(expression): +415 return (isinstance(expression, exp.Boolean) and expression.this) or isinstance( +416 expression, exp.Literal +417 ) 418 -419def is_null(a: exp.Expression) -> bool: -420 return type(a) is exp.Null -421 +419 +420def is_complement(a, b): +421 return isinstance(b, exp.Not) and b.this == a 422 -423def eval_boolean(expression, a, b): -424 if isinstance(expression, (exp.EQ, exp.Is)): -425 return boolean_literal(a == b) -426 if isinstance(expression, exp.NEQ): -427 return boolean_literal(a != b) -428 if isinstance(expression, exp.GT): -429 return boolean_literal(a > b) -430 if isinstance(expression, exp.GTE): -431 return boolean_literal(a >= b) -432 if isinstance(expression, exp.LT): -433 return boolean_literal(a < b) -434 if isinstance(expression, exp.LTE): -435 return boolean_literal(a <= b) -436 return None -437 -438 -439def extract_date(cast): -440 # The "fromisoformat" conversion could fail if the cast is used on an identifier, -441 # so in that case we can't extract the date. -442 try: -443 if cast.args["to"].this == exp.DataType.Type.DATE: -444 return datetime.date.fromisoformat(cast.name) -445 if cast.args["to"].this == exp.DataType.Type.DATETIME: -446 return datetime.datetime.fromisoformat(cast.name) -447 except ValueError: -448 return None -449 -450 -451def extract_interval(interval): -452 try: -453 from dateutil.relativedelta import relativedelta # type: ignore -454 except ModuleNotFoundError: -455 return None -456 -457 n = int(interval.name) -458 unit = interval.text("unit").lower() +423 +424def is_false(a: exp.Expression) -> bool: +425 return type(a) is exp.Boolean and not a.this +426 +427 +428def is_null(a: exp.Expression) -> bool: +429 return type(a) is exp.Null +430 +431 +432def eval_boolean(expression, a, b): +433 if isinstance(expression, (exp.EQ, exp.Is)): +434 return boolean_literal(a == b) +435 if isinstance(expression, exp.NEQ): +436 return boolean_literal(a != b) +437 if isinstance(expression, exp.GT): +438 return boolean_literal(a > b) +439 if isinstance(expression, exp.GTE): +440 return boolean_literal(a >= b) +441 if isinstance(expression, exp.LT): +442 return boolean_literal(a < b) +443 if isinstance(expression, exp.LTE): +444 return boolean_literal(a <= b) +445 return None +446 +447 +448def extract_date(cast): +449 # The "fromisoformat" conversion could fail if the cast is used on an identifier, +450 # so in that case we can't extract the date. +451 try: +452 if cast.args["to"].this == exp.DataType.Type.DATE: +453 return datetime.date.fromisoformat(cast.name) +454 if cast.args["to"].this == exp.DataType.Type.DATETIME: +455 return datetime.datetime.fromisoformat(cast.name) +456 except ValueError: +457 return None +458 459 -460 if unit == "year": -461 return relativedelta(years=n) -462 if unit == "month": -463 return relativedelta(months=n) -464 if unit == "week": -465 return relativedelta(weeks=n) -466 if unit == "day": -467 return relativedelta(days=n) -468 return None -469 -470 -471def date_literal(date): -472 return exp.cast( -473 exp.Literal.string(date), -474 "DATETIME" if isinstance(date, datetime.datetime) else "DATE", -475 ) -476 -477 -478def boolean_literal(condition): -479 return exp.true() if condition else exp.false() -480 -481 -482def _flat_simplify(expression, simplifier, root=True): -483 if root or not expression.same_parent: -484 operands = [] -485 queue = deque(expression.flatten(unnest=False)) -486 size = len(queue) -487 -488 while queue: -489 a = queue.popleft() +460def extract_interval(interval): +461 try: +462 from dateutil.relativedelta import relativedelta # type: ignore +463 except ModuleNotFoundError: +464 return None +465 +466 n = int(interval.name) +467 unit = interval.text("unit").lower() +468 +469 if unit == "year": +470 return relativedelta(years=n) +471 if unit == "month": +472 return relativedelta(months=n) +473 if unit == "week": +474 return relativedelta(weeks=n) +475 if unit == "day": +476 return relativedelta(days=n) +477 return None +478 +479 +480def date_literal(date): +481 return exp.cast( +482 exp.Literal.string(date), +483 "DATETIME" if isinstance(date, datetime.datetime) else "DATE", +484 ) +485 +486 +487def boolean_literal(condition): +488 return exp.true() if condition else exp.false() +489 490 -491 for b in queue: -492 result = simplifier(expression, a, b) -493 -494 if result: -495 queue.remove(b) -496 queue.appendleft(result) -497 break -498 else: -499 operands.append(a) -500 -501 if len(operands) < size: -502 return functools.reduce( -503 lambda a, b: expression.__class__(this=a, expression=b), operands -504 ) -505 return expression +491def _flat_simplify(expression, simplifier, root=True): +492 if root or not expression.same_parent: +493 operands = [] +494 queue = deque(expression.flatten(unnest=False)) +495 size = len(queue) +496 +497 while queue: +498 a = queue.popleft() +499 +500 for b in queue: +501 result = simplifier(expression, a, b) +502 +503 if result: +504 queue.remove(b) +505 queue.appendleft(result) +506 break +507 else: +508 operands.append(a) +509 +510 if len(operands) < size: +511 return functools.reduce( +512 lambda a, b: expression.__class__(this=a, expression=b), operands +513 ) +514 return expression
    @@ -723,8 +732,9 @@
    61 return exp.and_( 62 exp.GTE(this=expression.this.copy(), expression=expression.args["low"]), 63 exp.LTE(this=expression.this.copy(), expression=expression.args["high"]), -64 ) -65 return expression +64 copy=False, +65 ) +66 return expression
    @@ -746,32 +756,40 @@ -
    68def simplify_not(expression):
    -69    """
    -70    Demorgan's Law
    -71    NOT (x OR y) -> NOT x AND NOT y
    -72    NOT (x AND y) -> NOT x OR NOT y
    -73    """
    -74    if isinstance(expression, exp.Not):
    -75        if is_null(expression.this):
    -76            return exp.null()
    -77        if isinstance(expression.this, exp.Paren):
    -78            condition = expression.this.unnest()
    -79            if isinstance(condition, exp.And):
    -80                return exp.or_(exp.not_(condition.left), exp.not_(condition.right))
    -81            if isinstance(condition, exp.Or):
    -82                return exp.and_(exp.not_(condition.left), exp.not_(condition.right))
    -83            if is_null(condition):
    -84                return exp.null()
    -85        if always_true(expression.this):
    -86            return exp.false()
    -87        if is_false(expression.this):
    -88            return exp.true()
    -89        if isinstance(expression.this, exp.Not):
    -90            # double negation
    -91            # NOT NOT x -> x
    -92            return expression.this.this
    -93    return expression
    +            
     69def simplify_not(expression):
    + 70    """
    + 71    Demorgan's Law
    + 72    NOT (x OR y) -> NOT x AND NOT y
    + 73    NOT (x AND y) -> NOT x OR NOT y
    + 74    """
    + 75    if isinstance(expression, exp.Not):
    + 76        if is_null(expression.this):
    + 77            return exp.null()
    + 78        if isinstance(expression.this, exp.Paren):
    + 79            condition = expression.this.unnest()
    + 80            if isinstance(condition, exp.And):
    + 81                return exp.or_(
    + 82                    exp.not_(condition.left, copy=False),
    + 83                    exp.not_(condition.right, copy=False),
    + 84                    copy=False,
    + 85                )
    + 86            if isinstance(condition, exp.Or):
    + 87                return exp.and_(
    + 88                    exp.not_(condition.left, copy=False),
    + 89                    exp.not_(condition.right, copy=False),
    + 90                    copy=False,
    + 91                )
    + 92            if is_null(condition):
    + 93                return exp.null()
    + 94        if always_true(expression.this):
    + 95            return exp.false()
    + 96        if is_false(expression.this):
    + 97            return exp.true()
    + 98        if isinstance(expression.this, exp.Not):
    + 99            # double negation
    +100            # NOT NOT x -> x
    +101            return expression.this.this
    +102    return expression
     
    @@ -793,17 +811,17 @@ NOT (x AND y) -> NOT x OR NOT y

    -
     96def flatten(expression):
    - 97    """
    - 98    A AND (B AND C) -> A AND B AND C
    - 99    A OR (B OR C) -> A OR B OR C
    -100    """
    -101    if isinstance(expression, exp.Connector):
    -102        for node in expression.args.values():
    -103            child = node.unnest()
    -104            if isinstance(child, expression.__class__):
    -105                node.replace(child)
    -106    return expression
    +            
    105def flatten(expression):
    +106    """
    +107    A AND (B AND C) -> A AND B AND C
    +108    A OR (B OR C) -> A OR B OR C
    +109    """
    +110    if isinstance(expression, exp.Connector):
    +111        for node in expression.args.values():
    +112            child = node.unnest()
    +113            if isinstance(child, expression.__class__):
    +114                node.replace(child)
    +115    return expression
     
    @@ -824,42 +842,42 @@ A OR (B OR C) -> A OR B OR C

    -
    109def simplify_connectors(expression, root=True):
    -110    def _simplify_connectors(expression, left, right):
    -111        if left == right:
    -112            return left
    -113        if isinstance(expression, exp.And):
    -114            if is_false(left) or is_false(right):
    -115                return exp.false()
    -116            if is_null(left) or is_null(right):
    -117                return exp.null()
    -118            if always_true(left) and always_true(right):
    -119                return exp.true()
    -120            if always_true(left):
    -121                return right
    -122            if always_true(right):
    -123                return left
    -124            return _simplify_comparison(expression, left, right)
    -125        elif isinstance(expression, exp.Or):
    -126            if always_true(left) or always_true(right):
    -127                return exp.true()
    -128            if is_false(left) and is_false(right):
    -129                return exp.false()
    -130            if (
    -131                (is_null(left) and is_null(right))
    -132                or (is_null(left) and is_false(right))
    -133                or (is_false(left) and is_null(right))
    -134            ):
    -135                return exp.null()
    -136            if is_false(left):
    -137                return right
    -138            if is_false(right):
    -139                return left
    -140            return _simplify_comparison(expression, left, right, or_=True)
    -141
    -142    if isinstance(expression, exp.Connector):
    -143        return _flat_simplify(expression, _simplify_connectors, root)
    -144    return expression
    +            
    118def simplify_connectors(expression, root=True):
    +119    def _simplify_connectors(expression, left, right):
    +120        if left == right:
    +121            return left
    +122        if isinstance(expression, exp.And):
    +123            if is_false(left) or is_false(right):
    +124                return exp.false()
    +125            if is_null(left) or is_null(right):
    +126                return exp.null()
    +127            if always_true(left) and always_true(right):
    +128                return exp.true()
    +129            if always_true(left):
    +130                return right
    +131            if always_true(right):
    +132                return left
    +133            return _simplify_comparison(expression, left, right)
    +134        elif isinstance(expression, exp.Or):
    +135            if always_true(left) or always_true(right):
    +136                return exp.true()
    +137            if is_false(left) and is_false(right):
    +138                return exp.false()
    +139            if (
    +140                (is_null(left) and is_null(right))
    +141                or (is_null(left) and is_false(right))
    +142                or (is_false(left) and is_null(right))
    +143            ):
    +144                return exp.null()
    +145            if is_false(left):
    +146                return right
    +147            if is_false(right):
    +148                return left
    +149            return _simplify_comparison(expression, left, right, or_=True)
    +150
    +151    if isinstance(expression, exp.Connector):
    +152        return _flat_simplify(expression, _simplify_connectors, root)
    +153    return expression
     
    @@ -877,20 +895,20 @@ A OR (B OR C) -> A OR B OR C

    -
    226def remove_compliments(expression, root=True):
    -227    """
    -228    Removing compliments.
    -229
    -230    A AND NOT A -> FALSE
    -231    A OR NOT A -> TRUE
    -232    """
    -233    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    -234        compliment = exp.false() if isinstance(expression, exp.And) else exp.true()
    -235
    -236        for a, b in itertools.permutations(expression.flatten(), 2):
    -237            if is_complement(a, b):
    -238                return compliment
    -239    return expression
    +            
    235def remove_compliments(expression, root=True):
    +236    """
    +237    Removing compliments.
    +238
    +239    A AND NOT A -> FALSE
    +240    A OR NOT A -> TRUE
    +241    """
    +242    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    +243        compliment = exp.false() if isinstance(expression, exp.And) else exp.true()
    +244
    +245        for a, b in itertools.permutations(expression.flatten(), 2):
    +246            if is_complement(a, b):
    +247                return compliment
    +248    return expression
     
    @@ -913,30 +931,30 @@ A OR NOT A -> TRUE

    -
    242def uniq_sort(expression, cache=None, root=True):
    -243    """
    -244    Uniq and sort a connector.
    -245
    -246    C AND A AND B AND B -> A AND B AND C
    -247    """
    -248    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    -249        result_func = exp.and_ if isinstance(expression, exp.And) else exp.or_
    -250        flattened = tuple(expression.flatten())
    -251        deduped = {GENERATOR.generate(e, cache): e for e in flattened}
    -252        arr = tuple(deduped.items())
    -253
    -254        # check if the operands are already sorted, if not sort them
    -255        # A AND C AND B -> A AND B AND C
    -256        for i, (sql, e) in enumerate(arr[1:]):
    -257            if sql < arr[i][0]:
    -258                expression = result_func(*(e for _, e in sorted(arr)))
    -259                break
    -260        else:
    -261            # we didn't have to sort but maybe we need to dedup
    -262            if len(deduped) < len(flattened):
    -263                expression = result_func(*deduped.values())
    -264
    -265    return expression
    +            
    251def uniq_sort(expression, cache=None, root=True):
    +252    """
    +253    Uniq and sort a connector.
    +254
    +255    C AND A AND B AND B -> A AND B AND C
    +256    """
    +257    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    +258        result_func = exp.and_ if isinstance(expression, exp.And) else exp.or_
    +259        flattened = tuple(expression.flatten())
    +260        deduped = {GENERATOR.generate(e, cache): e for e in flattened}
    +261        arr = tuple(deduped.items())
    +262
    +263        # check if the operands are already sorted, if not sort them
    +264        # A AND C AND B -> A AND B AND C
    +265        for i, (sql, e) in enumerate(arr[1:]):
    +266            if sql < arr[i][0]:
    +267                expression = result_func(*(e for _, e in sorted(arr)), copy=False)
    +268                break
    +269        else:
    +270            # we didn't have to sort but maybe we need to dedup
    +271            if len(deduped) < len(flattened):
    +272                expression = result_func(*deduped.values(), copy=False)
    +273
    +274    return expression
     
    @@ -958,44 +976,44 @@ A OR NOT A -> TRUE

    -
    268def absorb_and_eliminate(expression, root=True):
    -269    """
    -270    absorption:
    -271        A AND (A OR B) -> A
    -272        A OR (A AND B) -> A
    -273        A AND (NOT A OR B) -> A AND B
    -274        A OR (NOT A AND B) -> A OR B
    -275    elimination:
    -276        (A AND B) OR (A AND NOT B) -> A
    -277        (A OR B) AND (A OR NOT B) -> A
    -278    """
    -279    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    -280        kind = exp.Or if isinstance(expression, exp.And) else exp.And
    -281
    -282        for a, b in itertools.permutations(expression.flatten(), 2):
    -283            if isinstance(a, kind):
    -284                aa, ab = a.unnest_operands()
    -285
    -286                # absorb
    -287                if is_complement(b, aa):
    -288                    aa.replace(exp.true() if kind == exp.And else exp.false())
    -289                elif is_complement(b, ab):
    -290                    ab.replace(exp.true() if kind == exp.And else exp.false())
    -291                elif (set(b.flatten()) if isinstance(b, kind) else {b}) < set(a.flatten()):
    -292                    a.replace(exp.false() if kind == exp.And else exp.true())
    -293                elif isinstance(b, kind):
    -294                    # eliminate
    -295                    rhs = b.unnest_operands()
    -296                    ba, bb = rhs
    -297
    -298                    if aa in rhs and (is_complement(ab, ba) or is_complement(ab, bb)):
    -299                        a.replace(aa)
    -300                        b.replace(aa)
    -301                    elif ab in rhs and (is_complement(aa, ba) or is_complement(aa, bb)):
    -302                        a.replace(ab)
    -303                        b.replace(ab)
    -304
    -305    return expression
    +            
    277def absorb_and_eliminate(expression, root=True):
    +278    """
    +279    absorption:
    +280        A AND (A OR B) -> A
    +281        A OR (A AND B) -> A
    +282        A AND (NOT A OR B) -> A AND B
    +283        A OR (NOT A AND B) -> A OR B
    +284    elimination:
    +285        (A AND B) OR (A AND NOT B) -> A
    +286        (A OR B) AND (A OR NOT B) -> A
    +287    """
    +288    if isinstance(expression, exp.Connector) and (root or not expression.same_parent):
    +289        kind = exp.Or if isinstance(expression, exp.And) else exp.And
    +290
    +291        for a, b in itertools.permutations(expression.flatten(), 2):
    +292            if isinstance(a, kind):
    +293                aa, ab = a.unnest_operands()
    +294
    +295                # absorb
    +296                if is_complement(b, aa):
    +297                    aa.replace(exp.true() if kind == exp.And else exp.false())
    +298                elif is_complement(b, ab):
    +299                    ab.replace(exp.true() if kind == exp.And else exp.false())
    +300                elif (set(b.flatten()) if isinstance(b, kind) else {b}) < set(a.flatten()):
    +301                    a.replace(exp.false() if kind == exp.And else exp.true())
    +302                elif isinstance(b, kind):
    +303                    # eliminate
    +304                    rhs = b.unnest_operands()
    +305                    ba, bb = rhs
    +306
    +307                    if aa in rhs and (is_complement(ab, ba) or is_complement(ab, bb)):
    +308                        a.replace(aa)
    +309                        b.replace(aa)
    +310                    elif ab in rhs and (is_complement(aa, ba) or is_complement(aa, bb)):
    +311                        a.replace(ab)
    +312                        b.replace(ab)
    +313
    +314    return expression
     
    @@ -1022,18 +1040,18 @@ elimination:
    -
    308def simplify_literals(expression, root=True):
    -309    if isinstance(expression, exp.Binary) and not isinstance(expression, exp.Connector):
    -310        return _flat_simplify(expression, _simplify_binary, root)
    -311    elif isinstance(expression, exp.Neg):
    -312        this = expression.this
    -313        if this.is_number:
    -314            value = this.name
    -315            if value[0] == "-":
    -316                return exp.Literal.number(value[1:])
    -317            return exp.Literal.number(f"-{value}")
    -318
    -319    return expression
    +            
    317def simplify_literals(expression, root=True):
    +318    if isinstance(expression, exp.Binary) and not isinstance(expression, exp.Connector):
    +319        return _flat_simplify(expression, _simplify_binary, root)
    +320    elif isinstance(expression, exp.Neg):
    +321        this = expression.this
    +322        if this.is_number:
    +323            value = this.name
    +324            if value[0] == "-":
    +325                return exp.Literal.number(value[1:])
    +326            return exp.Literal.number(f"-{value}")
    +327
    +328    return expression
     
    @@ -1051,18 +1069,18 @@ elimination:
    -
    382def simplify_parens(expression):
    -383    if (
    -384        isinstance(expression, exp.Paren)
    -385        and not isinstance(expression.this, exp.Select)
    -386        and (
    -387            not isinstance(expression.parent, (exp.Condition, exp.Binary))
    -388            or isinstance(expression.this, exp.Predicate)
    -389            or not isinstance(expression.this, exp.Binary)
    -390        )
    -391    ):
    -392        return expression.this
    -393    return expression
    +            
    391def simplify_parens(expression):
    +392    if (
    +393        isinstance(expression, exp.Paren)
    +394        and not isinstance(expression.this, exp.Select)
    +395        and (
    +396            not isinstance(expression.parent, (exp.Condition, exp.Binary))
    +397            or isinstance(expression.this, exp.Predicate)
    +398            or not isinstance(expression.this, exp.Binary)
    +399        )
    +400    ):
    +401        return expression.this
    +402    return expression
     
    @@ -1080,14 +1098,14 @@ elimination:
    -
    396def remove_where_true(expression):
    -397    for where in expression.find_all(exp.Where):
    -398        if always_true(where.this):
    -399            where.parent.set("where", None)
    -400    for join in expression.find_all(exp.Join):
    -401        if always_true(join.args.get("on")):
    -402            join.set("kind", "CROSS")
    -403            join.set("on", None)
    +            
    405def remove_where_true(expression):
    +406    for where in expression.find_all(exp.Where):
    +407        if always_true(where.this):
    +408            where.parent.set("where", None)
    +409    for join in expression.find_all(exp.Join):
    +410        if always_true(join.args.get("on")):
    +411            join.set("kind", "CROSS")
    +412            join.set("on", None)
     
    @@ -1105,10 +1123,10 @@ elimination:
    -
    406def always_true(expression):
    -407    return (isinstance(expression, exp.Boolean) and expression.this) or isinstance(
    -408        expression, exp.Literal
    -409    )
    +            
    415def always_true(expression):
    +416    return (isinstance(expression, exp.Boolean) and expression.this) or isinstance(
    +417        expression, exp.Literal
    +418    )
     
    @@ -1126,8 +1144,8 @@ elimination:
    -
    412def is_complement(a, b):
    -413    return isinstance(b, exp.Not) and b.this == a
    +            
    421def is_complement(a, b):
    +422    return isinstance(b, exp.Not) and b.this == a
     
    @@ -1145,8 +1163,8 @@ elimination:
    -
    416def is_false(a: exp.Expression) -> bool:
    -417    return type(a) is exp.Boolean and not a.this
    +            
    425def is_false(a: exp.Expression) -> bool:
    +426    return type(a) is exp.Boolean and not a.this
     
    @@ -1164,8 +1182,8 @@ elimination:
    -
    420def is_null(a: exp.Expression) -> bool:
    -421    return type(a) is exp.Null
    +            
    429def is_null(a: exp.Expression) -> bool:
    +430    return type(a) is exp.Null
     
    @@ -1183,20 +1201,20 @@ elimination:
    -
    424def eval_boolean(expression, a, b):
    -425    if isinstance(expression, (exp.EQ, exp.Is)):
    -426        return boolean_literal(a == b)
    -427    if isinstance(expression, exp.NEQ):
    -428        return boolean_literal(a != b)
    -429    if isinstance(expression, exp.GT):
    -430        return boolean_literal(a > b)
    -431    if isinstance(expression, exp.GTE):
    -432        return boolean_literal(a >= b)
    -433    if isinstance(expression, exp.LT):
    -434        return boolean_literal(a < b)
    -435    if isinstance(expression, exp.LTE):
    -436        return boolean_literal(a <= b)
    -437    return None
    +            
    433def eval_boolean(expression, a, b):
    +434    if isinstance(expression, (exp.EQ, exp.Is)):
    +435        return boolean_literal(a == b)
    +436    if isinstance(expression, exp.NEQ):
    +437        return boolean_literal(a != b)
    +438    if isinstance(expression, exp.GT):
    +439        return boolean_literal(a > b)
    +440    if isinstance(expression, exp.GTE):
    +441        return boolean_literal(a >= b)
    +442    if isinstance(expression, exp.LT):
    +443        return boolean_literal(a < b)
    +444    if isinstance(expression, exp.LTE):
    +445        return boolean_literal(a <= b)
    +446    return None
     
    @@ -1214,16 +1232,16 @@ elimination:
    -
    440def extract_date(cast):
    -441    # The "fromisoformat" conversion could fail if the cast is used on an identifier,
    -442    # so in that case we can't extract the date.
    -443    try:
    -444        if cast.args["to"].this == exp.DataType.Type.DATE:
    -445            return datetime.date.fromisoformat(cast.name)
    -446        if cast.args["to"].this == exp.DataType.Type.DATETIME:
    -447            return datetime.datetime.fromisoformat(cast.name)
    -448    except ValueError:
    -449        return None
    +            
    449def extract_date(cast):
    +450    # The "fromisoformat" conversion could fail if the cast is used on an identifier,
    +451    # so in that case we can't extract the date.
    +452    try:
    +453        if cast.args["to"].this == exp.DataType.Type.DATE:
    +454            return datetime.date.fromisoformat(cast.name)
    +455        if cast.args["to"].this == exp.DataType.Type.DATETIME:
    +456            return datetime.datetime.fromisoformat(cast.name)
    +457    except ValueError:
    +458        return None
     
    @@ -1241,24 +1259,24 @@ elimination:
    -
    452def extract_interval(interval):
    -453    try:
    -454        from dateutil.relativedelta import relativedelta  # type: ignore
    -455    except ModuleNotFoundError:
    -456        return None
    -457
    -458    n = int(interval.name)
    -459    unit = interval.text("unit").lower()
    -460
    -461    if unit == "year":
    -462        return relativedelta(years=n)
    -463    if unit == "month":
    -464        return relativedelta(months=n)
    -465    if unit == "week":
    -466        return relativedelta(weeks=n)
    -467    if unit == "day":
    -468        return relativedelta(days=n)
    -469    return None
    +            
    461def extract_interval(interval):
    +462    try:
    +463        from dateutil.relativedelta import relativedelta  # type: ignore
    +464    except ModuleNotFoundError:
    +465        return None
    +466
    +467    n = int(interval.name)
    +468    unit = interval.text("unit").lower()
    +469
    +470    if unit == "year":
    +471        return relativedelta(years=n)
    +472    if unit == "month":
    +473        return relativedelta(months=n)
    +474    if unit == "week":
    +475        return relativedelta(weeks=n)
    +476    if unit == "day":
    +477        return relativedelta(days=n)
    +478    return None
     
    @@ -1276,11 +1294,11 @@ elimination:
    -
    472def date_literal(date):
    -473    return exp.cast(
    -474        exp.Literal.string(date),
    -475        "DATETIME" if isinstance(date, datetime.datetime) else "DATE",
    -476    )
    +            
    481def date_literal(date):
    +482    return exp.cast(
    +483        exp.Literal.string(date),
    +484        "DATETIME" if isinstance(date, datetime.datetime) else "DATE",
    +485    )
     
    @@ -1298,8 +1316,8 @@ elimination:
    -
    479def boolean_literal(condition):
    -480    return exp.true() if condition else exp.false()
    +            
    488def boolean_literal(condition):
    +489    return exp.true() if condition else exp.false()
     
    diff --git a/docs/sqlglot/parser.html b/docs/sqlglot/parser.html index 6c3a0d2..19a6730 100644 --- a/docs/sqlglot/parser.html +++ b/docs/sqlglot/parser.html @@ -326,4193 +326,4226 @@
    232 TokenType.IS, 233 TokenType.ISNULL, 234 TokenType.INTERVAL, - 235 TokenType.LAZY, - 236 TokenType.LEADING, - 237 TokenType.LEFT, - 238 TokenType.LOCAL, - 239 TokenType.MATERIALIZED, - 240 TokenType.MERGE, - 241 TokenType.NATURAL, - 242 TokenType.NEXT, - 243 TokenType.OFFSET, - 244 TokenType.ONLY, - 245 TokenType.OPTIONS, - 246 TokenType.ORDINALITY, - 247 TokenType.OVERWRITE, - 248 TokenType.PARTITION, - 249 TokenType.PERCENT, - 250 TokenType.PIVOT, - 251 TokenType.PRAGMA, - 252 TokenType.PRECEDING, - 253 TokenType.RANGE, - 254 TokenType.REFERENCES, - 255 TokenType.RIGHT, - 256 TokenType.ROW, - 257 TokenType.ROWS, - 258 TokenType.SEED, - 259 TokenType.SEMI, - 260 TokenType.SET, - 261 TokenType.SHOW, - 262 TokenType.SORTKEY, - 263 TokenType.TEMPORARY, - 264 TokenType.TOP, - 265 TokenType.TRAILING, - 266 TokenType.TRUE, - 267 TokenType.UNBOUNDED, - 268 TokenType.UNIQUE, - 269 TokenType.UNLOGGED, - 270 TokenType.UNPIVOT, - 271 TokenType.VOLATILE, - 272 TokenType.WINDOW, - 273 *CREATABLES, - 274 *SUBQUERY_PREDICATES, - 275 *TYPE_TOKENS, - 276 *NO_PAREN_FUNCTIONS, - 277 } - 278 - 279 INTERVAL_VARS = ID_VAR_TOKENS - {TokenType.END} - 280 - 281 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { - 282 TokenType.APPLY, - 283 TokenType.FULL, - 284 TokenType.LEFT, - 285 TokenType.NATURAL, - 286 TokenType.OFFSET, - 287 TokenType.RIGHT, - 288 TokenType.WINDOW, - 289 } - 290 - 291 COMMENT_TABLE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.IS} - 292 - 293 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} - 294 - 295 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} - 296 - 297 FUNC_TOKENS = { - 298 TokenType.COMMAND, - 299 TokenType.CURRENT_DATE, - 300 TokenType.CURRENT_DATETIME, - 301 TokenType.CURRENT_TIMESTAMP, - 302 TokenType.CURRENT_TIME, - 303 TokenType.CURRENT_USER, - 304 TokenType.FILTER, - 305 TokenType.FIRST, - 306 TokenType.FORMAT, - 307 TokenType.GLOB, - 308 TokenType.IDENTIFIER, - 309 TokenType.INDEX, - 310 TokenType.ISNULL, - 311 TokenType.ILIKE, - 312 TokenType.LIKE, - 313 TokenType.MERGE, - 314 TokenType.OFFSET, - 315 TokenType.PRIMARY_KEY, - 316 TokenType.REPLACE, - 317 TokenType.ROW, - 318 TokenType.UNNEST, - 319 TokenType.VAR, - 320 TokenType.LEFT, - 321 TokenType.RIGHT, - 322 TokenType.DATE, - 323 TokenType.DATETIME, - 324 TokenType.TABLE, - 325 TokenType.TIMESTAMP, - 326 TokenType.TIMESTAMPTZ, - 327 TokenType.WINDOW, - 328 *TYPE_TOKENS, - 329 *SUBQUERY_PREDICATES, - 330 } - 331 - 332 CONJUNCTION = { - 333 TokenType.AND: exp.And, - 334 TokenType.OR: exp.Or, - 335 } - 336 - 337 EQUALITY = { - 338 TokenType.EQ: exp.EQ, - 339 TokenType.NEQ: exp.NEQ, - 340 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, - 341 } - 342 - 343 COMPARISON = { - 344 TokenType.GT: exp.GT, - 345 TokenType.GTE: exp.GTE, - 346 TokenType.LT: exp.LT, - 347 TokenType.LTE: exp.LTE, - 348 } - 349 - 350 BITWISE = { - 351 TokenType.AMP: exp.BitwiseAnd, - 352 TokenType.CARET: exp.BitwiseXor, - 353 TokenType.PIPE: exp.BitwiseOr, - 354 TokenType.DPIPE: exp.DPipe, - 355 } - 356 - 357 TERM = { - 358 TokenType.DASH: exp.Sub, - 359 TokenType.PLUS: exp.Add, - 360 TokenType.MOD: exp.Mod, - 361 TokenType.COLLATE: exp.Collate, - 362 } - 363 - 364 FACTOR = { - 365 TokenType.DIV: exp.IntDiv, - 366 TokenType.LR_ARROW: exp.Distance, - 367 TokenType.SLASH: exp.Div, - 368 TokenType.STAR: exp.Mul, - 369 } - 370 - 371 TIMESTAMPS = { - 372 TokenType.TIME, - 373 TokenType.TIMESTAMP, - 374 TokenType.TIMESTAMPTZ, - 375 TokenType.TIMESTAMPLTZ, - 376 } - 377 - 378 SET_OPERATIONS = { - 379 TokenType.UNION, - 380 TokenType.INTERSECT, - 381 TokenType.EXCEPT, - 382 } - 383 - 384 JOIN_SIDES = { - 385 TokenType.LEFT, - 386 TokenType.RIGHT, - 387 TokenType.FULL, - 388 } - 389 - 390 JOIN_KINDS = { - 391 TokenType.INNER, - 392 TokenType.OUTER, - 393 TokenType.CROSS, - 394 TokenType.SEMI, - 395 TokenType.ANTI, - 396 } - 397 - 398 LAMBDAS = { - 399 TokenType.ARROW: lambda self, expressions: self.expression( - 400 exp.Lambda, - 401 this=self._replace_lambda( - 402 self._parse_conjunction(), - 403 {node.name for node in expressions}, - 404 ), - 405 expressions=expressions, - 406 ), - 407 TokenType.FARROW: lambda self, expressions: self.expression( - 408 exp.Kwarg, - 409 this=exp.Var(this=expressions[0].name), - 410 expression=self._parse_conjunction(), - 411 ), - 412 } - 413 - 414 COLUMN_OPERATORS = { - 415 TokenType.DOT: None, - 416 TokenType.DCOLON: lambda self, this, to: self.expression( - 417 exp.Cast if self.STRICT_CAST else exp.TryCast, - 418 this=this, - 419 to=to, - 420 ), - 421 TokenType.ARROW: lambda self, this, path: self.expression( - 422 exp.JSONExtract, - 423 this=this, - 424 expression=path, - 425 ), - 426 TokenType.DARROW: lambda self, this, path: self.expression( - 427 exp.JSONExtractScalar, - 428 this=this, - 429 expression=path, - 430 ), - 431 TokenType.HASH_ARROW: lambda self, this, path: self.expression( - 432 exp.JSONBExtract, - 433 this=this, - 434 expression=path, - 435 ), - 436 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( - 437 exp.JSONBExtractScalar, - 438 this=this, - 439 expression=path, - 440 ), - 441 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( - 442 exp.JSONBContains, - 443 this=this, - 444 expression=key, - 445 ), - 446 } - 447 - 448 EXPRESSION_PARSERS = { - 449 exp.Column: lambda self: self._parse_column(), - 450 exp.DataType: lambda self: self._parse_types(), - 451 exp.From: lambda self: self._parse_from(), - 452 exp.Group: lambda self: self._parse_group(), - 453 exp.Identifier: lambda self: self._parse_id_var(), - 454 exp.Lateral: lambda self: self._parse_lateral(), - 455 exp.Join: lambda self: self._parse_join(), - 456 exp.Order: lambda self: self._parse_order(), - 457 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 458 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 459 exp.Lambda: lambda self: self._parse_lambda(), - 460 exp.Limit: lambda self: self._parse_limit(), - 461 exp.Offset: lambda self: self._parse_offset(), - 462 exp.TableAlias: lambda self: self._parse_table_alias(), - 463 exp.Table: lambda self: self._parse_table(), - 464 exp.Condition: lambda self: self._parse_conjunction(), - 465 exp.Expression: lambda self: self._parse_statement(), - 466 exp.Properties: lambda self: self._parse_properties(), - 467 exp.Where: lambda self: self._parse_where(), - 468 exp.Ordered: lambda self: self._parse_ordered(), - 469 exp.Having: lambda self: self._parse_having(), - 470 exp.With: lambda self: self._parse_with(), - 471 exp.Window: lambda self: self._parse_named_window(), - 472 exp.Qualify: lambda self: self._parse_qualify(), - 473 exp.Returning: lambda self: self._parse_returning(), - 474 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), - 475 } - 476 - 477 STATEMENT_PARSERS = { - 478 TokenType.ALTER: lambda self: self._parse_alter(), - 479 TokenType.BEGIN: lambda self: self._parse_transaction(), - 480 TokenType.CACHE: lambda self: self._parse_cache(), - 481 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), - 482 TokenType.COMMENT: lambda self: self._parse_comment(), - 483 TokenType.CREATE: lambda self: self._parse_create(), - 484 TokenType.DELETE: lambda self: self._parse_delete(), - 485 TokenType.DESC: lambda self: self._parse_describe(), - 486 TokenType.DESCRIBE: lambda self: self._parse_describe(), - 487 TokenType.DROP: lambda self: self._parse_drop(), - 488 TokenType.END: lambda self: self._parse_commit_or_rollback(), - 489 TokenType.INSERT: lambda self: self._parse_insert(), - 490 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), - 491 TokenType.MERGE: lambda self: self._parse_merge(), - 492 TokenType.PRAGMA: lambda self: self.expression(exp.Pragma, this=self._parse_expression()), - 493 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), - 494 TokenType.SET: lambda self: self._parse_set(), - 495 TokenType.UNCACHE: lambda self: self._parse_uncache(), - 496 TokenType.UPDATE: lambda self: self._parse_update(), - 497 TokenType.USE: lambda self: self.expression( - 498 exp.Use, - 499 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) - 500 and exp.Var(this=self._prev.text), - 501 this=self._parse_table(schema=False), - 502 ), - 503 } - 504 - 505 UNARY_PARSERS = { - 506 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op - 507 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), - 508 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), - 509 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), - 510 } - 511 - 512 PRIMARY_PARSERS = { - 513 TokenType.STRING: lambda self, token: self.expression( - 514 exp.Literal, this=token.text, is_string=True - 515 ), - 516 TokenType.NUMBER: lambda self, token: self.expression( - 517 exp.Literal, this=token.text, is_string=False - 518 ), - 519 TokenType.STAR: lambda self, _: self.expression( - 520 exp.Star, - 521 **{"except": self._parse_except(), "replace": self._parse_replace()}, - 522 ), - 523 TokenType.NULL: lambda self, _: self.expression(exp.Null), - 524 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), - 525 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), - 526 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), - 527 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), - 528 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), - 529 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), - 530 TokenType.NATIONAL: lambda self, token: self._parse_national(token), - 531 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), - 532 } - 533 - 534 PLACEHOLDER_PARSERS = { - 535 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), - 536 TokenType.PARAMETER: lambda self: self._parse_parameter(), - 537 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) - 538 if self._match_set((TokenType.NUMBER, TokenType.VAR)) - 539 else None, - 540 } - 541 - 542 RANGE_PARSERS = { - 543 TokenType.BETWEEN: lambda self, this: self._parse_between(this), - 544 TokenType.GLOB: binary_range_parser(exp.Glob), - 545 TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), - 546 TokenType.IN: lambda self, this: self._parse_in(this), - 547 TokenType.IS: lambda self, this: self._parse_is(this), - 548 TokenType.LIKE: binary_range_parser(exp.Like), - 549 TokenType.ILIKE: binary_range_parser(exp.ILike), - 550 TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), - 551 TokenType.RLIKE: binary_range_parser(exp.RegexpLike), - 552 TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), - 553 } - 554 - 555 PROPERTY_PARSERS = { - 556 "AFTER": lambda self: self._parse_afterjournal( - 557 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 558 ), - 559 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), - 560 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), - 561 "BEFORE": lambda self: self._parse_journal( - 562 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 563 ), - 564 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), - 565 "CHARACTER SET": lambda self: self._parse_character_set(), - 566 "CHECKSUM": lambda self: self._parse_checksum(), - 567 "CLUSTER BY": lambda self: self.expression( - 568 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) - 569 ), - 570 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), - 571 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), - 572 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( - 573 default=self._prev.text.upper() == "DEFAULT" - 574 ), - 575 "DEFINER": lambda self: self._parse_definer(), - 576 "DETERMINISTIC": lambda self: self.expression( - 577 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") - 578 ), - 579 "DISTKEY": lambda self: self._parse_distkey(), - 580 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), - 581 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), - 582 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), - 583 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), - 584 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), - 585 "FREESPACE": lambda self: self._parse_freespace(), - 586 "GLOBAL": lambda self: self._parse_temporary(global_=True), - 587 "IMMUTABLE": lambda self: self.expression( - 588 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") - 589 ), - 590 "JOURNAL": lambda self: self._parse_journal( - 591 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 592 ), - 593 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), - 594 "LIKE": lambda self: self._parse_create_like(), - 595 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), - 596 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), - 597 "LOCK": lambda self: self._parse_locking(), - 598 "LOCKING": lambda self: self._parse_locking(), - 599 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), - 600 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), - 601 "MAX": lambda self: self._parse_datablocksize(), - 602 "MAXIMUM": lambda self: self._parse_datablocksize(), - 603 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( - 604 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" - 605 ), - 606 "MIN": lambda self: self._parse_datablocksize(), - 607 "MINIMUM": lambda self: self._parse_datablocksize(), - 608 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), - 609 "NO": lambda self: self._parse_noprimaryindex(), - 610 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), - 611 "ON": lambda self: self._parse_oncommit(), - 612 "PARTITION BY": lambda self: self._parse_partitioned_by(), - 613 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), - 614 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), - 615 "RETURNS": lambda self: self._parse_returns(), - 616 "ROW": lambda self: self._parse_row(), - 617 "ROW_FORMAT": lambda self: self._parse_property_assignment(exp.RowFormatProperty), - 618 "SET": lambda self: self.expression(exp.SetProperty, multi=False), - 619 "SORTKEY": lambda self: self._parse_sortkey(), - 620 "STABLE": lambda self: self.expression( - 621 exp.StabilityProperty, this=exp.Literal.string("STABLE") - 622 ), - 623 "STORED": lambda self: self._parse_stored(), - 624 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 625 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), - 626 "TEMP": lambda self: self._parse_temporary(global_=False), - 627 "TEMPORARY": lambda self: self._parse_temporary(global_=False), - 628 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), - 629 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 630 "VOLATILE": lambda self: self._parse_volatile_property(), - 631 "WITH": lambda self: self._parse_with_property(), - 632 } - 633 - 634 CONSTRAINT_PARSERS = { - 635 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), - 636 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), - 637 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), - 638 "CHARACTER SET": lambda self: self.expression( - 639 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() - 640 ), - 641 "CHECK": lambda self: self.expression( - 642 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) - 643 ), - 644 "COLLATE": lambda self: self.expression( - 645 exp.CollateColumnConstraint, this=self._parse_var() - 646 ), - 647 "COMMENT": lambda self: self.expression( - 648 exp.CommentColumnConstraint, this=self._parse_string() - 649 ), - 650 "COMPRESS": lambda self: self._parse_compress(), - 651 "DEFAULT": lambda self: self.expression( - 652 exp.DefaultColumnConstraint, this=self._parse_bitwise() - 653 ), - 654 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), - 655 "FOREIGN KEY": lambda self: self._parse_foreign_key(), - 656 "FORMAT": lambda self: self.expression( - 657 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() - 658 ), - 659 "GENERATED": lambda self: self._parse_generated_as_identity(), - 660 "IDENTITY": lambda self: self._parse_auto_increment(), - 661 "INLINE": lambda self: self._parse_inline(), - 662 "LIKE": lambda self: self._parse_create_like(), - 663 "NOT": lambda self: self._parse_not_constraint(), - 664 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), - 665 "ON": lambda self: self._match(TokenType.UPDATE) - 666 and self.expression(exp.OnUpdateColumnConstraint, this=self._parse_function()), - 667 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), - 668 "PRIMARY KEY": lambda self: self._parse_primary_key(), - 669 "REFERENCES": lambda self: self._parse_references(match=False), - 670 "TITLE": lambda self: self.expression( - 671 exp.TitleColumnConstraint, this=self._parse_var_or_string() - 672 ), - 673 "UNIQUE": lambda self: self._parse_unique(), - 674 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), - 675 } - 676 - 677 ALTER_PARSERS = { - 678 "ADD": lambda self: self._parse_alter_table_add(), - 679 "ALTER": lambda self: self._parse_alter_table_alter(), - 680 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), - 681 "DROP": lambda self: self._parse_alter_table_drop(), - 682 "RENAME": lambda self: self._parse_alter_table_rename(), - 683 } - 684 - 685 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} - 686 - 687 NO_PAREN_FUNCTION_PARSERS = { - 688 TokenType.CASE: lambda self: self._parse_case(), - 689 TokenType.IF: lambda self: self._parse_if(), - 690 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), - 691 } - 692 - 693 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 694 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), - 695 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), - 696 "DECODE": lambda self: self._parse_decode(), - 697 "EXTRACT": lambda self: self._parse_extract(), - 698 "JSON_OBJECT": lambda self: self._parse_json_object(), - 699 "LOG": lambda self: self._parse_logarithm(), - 700 "MATCH": lambda self: self._parse_match_against(), - 701 "POSITION": lambda self: self._parse_position(), - 702 "STRING_AGG": lambda self: self._parse_string_agg(), - 703 "SUBSTRING": lambda self: self._parse_substring(), - 704 "TRIM": lambda self: self._parse_trim(), - 705 "TRY_CAST": lambda self: self._parse_cast(False), - 706 "TRY_CONVERT": lambda self: self._parse_convert(False), - 707 } - 708 - 709 QUERY_MODIFIER_PARSERS = { - 710 "match": lambda self: self._parse_match_recognize(), - 711 "where": lambda self: self._parse_where(), - 712 "group": lambda self: self._parse_group(), - 713 "having": lambda self: self._parse_having(), - 714 "qualify": lambda self: self._parse_qualify(), - 715 "windows": lambda self: self._parse_window_clause(), - 716 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), - 717 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 718 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 719 "order": lambda self: self._parse_order(), - 720 "limit": lambda self: self._parse_limit(), - 721 "offset": lambda self: self._parse_offset(), - 722 "lock": lambda self: self._parse_lock(), - 723 "sample": lambda self: self._parse_table_sample(as_modifier=True), - 724 } - 725 - 726 SET_PARSERS = { - 727 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), - 728 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), - 729 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), - 730 "TRANSACTION": lambda self: self._parse_set_transaction(), - 731 } - 732 - 733 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 734 - 735 TYPE_LITERAL_PARSERS: t.Dict[exp.DataType.Type, t.Callable] = {} - 736 - 737 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 235 TokenType.KEEP, + 236 TokenType.LAZY, + 237 TokenType.LEADING, + 238 TokenType.LEFT, + 239 TokenType.LOCAL, + 240 TokenType.MATERIALIZED, + 241 TokenType.MERGE, + 242 TokenType.NATURAL, + 243 TokenType.NEXT, + 244 TokenType.OFFSET, + 245 TokenType.ONLY, + 246 TokenType.OPTIONS, + 247 TokenType.ORDINALITY, + 248 TokenType.OVERWRITE, + 249 TokenType.PARTITION, + 250 TokenType.PERCENT, + 251 TokenType.PIVOT, + 252 TokenType.PRAGMA, + 253 TokenType.PRECEDING, + 254 TokenType.RANGE, + 255 TokenType.REFERENCES, + 256 TokenType.RIGHT, + 257 TokenType.ROW, + 258 TokenType.ROWS, + 259 TokenType.SEED, + 260 TokenType.SEMI, + 261 TokenType.SET, + 262 TokenType.SHOW, + 263 TokenType.SORTKEY, + 264 TokenType.TEMPORARY, + 265 TokenType.TOP, + 266 TokenType.TRAILING, + 267 TokenType.TRUE, + 268 TokenType.UNBOUNDED, + 269 TokenType.UNIQUE, + 270 TokenType.UNLOGGED, + 271 TokenType.UNPIVOT, + 272 TokenType.VOLATILE, + 273 TokenType.WINDOW, + 274 *CREATABLES, + 275 *SUBQUERY_PREDICATES, + 276 *TYPE_TOKENS, + 277 *NO_PAREN_FUNCTIONS, + 278 } + 279 + 280 INTERVAL_VARS = ID_VAR_TOKENS - {TokenType.END} + 281 + 282 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { + 283 TokenType.APPLY, + 284 TokenType.FULL, + 285 TokenType.LEFT, + 286 TokenType.NATURAL, + 287 TokenType.OFFSET, + 288 TokenType.RIGHT, + 289 TokenType.WINDOW, + 290 } + 291 + 292 COMMENT_TABLE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.IS} + 293 + 294 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} + 295 + 296 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} + 297 + 298 FUNC_TOKENS = { + 299 TokenType.COMMAND, + 300 TokenType.CURRENT_DATE, + 301 TokenType.CURRENT_DATETIME, + 302 TokenType.CURRENT_TIMESTAMP, + 303 TokenType.CURRENT_TIME, + 304 TokenType.CURRENT_USER, + 305 TokenType.FILTER, + 306 TokenType.FIRST, + 307 TokenType.FORMAT, + 308 TokenType.GLOB, + 309 TokenType.IDENTIFIER, + 310 TokenType.INDEX, + 311 TokenType.ISNULL, + 312 TokenType.ILIKE, + 313 TokenType.LIKE, + 314 TokenType.MERGE, + 315 TokenType.OFFSET, + 316 TokenType.PRIMARY_KEY, + 317 TokenType.REPLACE, + 318 TokenType.ROW, + 319 TokenType.UNNEST, + 320 TokenType.VAR, + 321 TokenType.LEFT, + 322 TokenType.RIGHT, + 323 TokenType.DATE, + 324 TokenType.DATETIME, + 325 TokenType.TABLE, + 326 TokenType.TIMESTAMP, + 327 TokenType.TIMESTAMPTZ, + 328 TokenType.WINDOW, + 329 *TYPE_TOKENS, + 330 *SUBQUERY_PREDICATES, + 331 } + 332 + 333 CONJUNCTION = { + 334 TokenType.AND: exp.And, + 335 TokenType.OR: exp.Or, + 336 } + 337 + 338 EQUALITY = { + 339 TokenType.EQ: exp.EQ, + 340 TokenType.NEQ: exp.NEQ, + 341 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, + 342 } + 343 + 344 COMPARISON = { + 345 TokenType.GT: exp.GT, + 346 TokenType.GTE: exp.GTE, + 347 TokenType.LT: exp.LT, + 348 TokenType.LTE: exp.LTE, + 349 } + 350 + 351 BITWISE = { + 352 TokenType.AMP: exp.BitwiseAnd, + 353 TokenType.CARET: exp.BitwiseXor, + 354 TokenType.PIPE: exp.BitwiseOr, + 355 TokenType.DPIPE: exp.DPipe, + 356 } + 357 + 358 TERM = { + 359 TokenType.DASH: exp.Sub, + 360 TokenType.PLUS: exp.Add, + 361 TokenType.MOD: exp.Mod, + 362 TokenType.COLLATE: exp.Collate, + 363 } + 364 + 365 FACTOR = { + 366 TokenType.DIV: exp.IntDiv, + 367 TokenType.LR_ARROW: exp.Distance, + 368 TokenType.SLASH: exp.Div, + 369 TokenType.STAR: exp.Mul, + 370 } + 371 + 372 TIMESTAMPS = { + 373 TokenType.TIME, + 374 TokenType.TIMESTAMP, + 375 TokenType.TIMESTAMPTZ, + 376 TokenType.TIMESTAMPLTZ, + 377 } + 378 + 379 SET_OPERATIONS = { + 380 TokenType.UNION, + 381 TokenType.INTERSECT, + 382 TokenType.EXCEPT, + 383 } + 384 + 385 JOIN_SIDES = { + 386 TokenType.LEFT, + 387 TokenType.RIGHT, + 388 TokenType.FULL, + 389 } + 390 + 391 JOIN_KINDS = { + 392 TokenType.INNER, + 393 TokenType.OUTER, + 394 TokenType.CROSS, + 395 TokenType.SEMI, + 396 TokenType.ANTI, + 397 } + 398 + 399 LAMBDAS = { + 400 TokenType.ARROW: lambda self, expressions: self.expression( + 401 exp.Lambda, + 402 this=self._replace_lambda( + 403 self._parse_conjunction(), + 404 {node.name for node in expressions}, + 405 ), + 406 expressions=expressions, + 407 ), + 408 TokenType.FARROW: lambda self, expressions: self.expression( + 409 exp.Kwarg, + 410 this=exp.Var(this=expressions[0].name), + 411 expression=self._parse_conjunction(), + 412 ), + 413 } + 414 + 415 COLUMN_OPERATORS = { + 416 TokenType.DOT: None, + 417 TokenType.DCOLON: lambda self, this, to: self.expression( + 418 exp.Cast if self.STRICT_CAST else exp.TryCast, + 419 this=this, + 420 to=to, + 421 ), + 422 TokenType.ARROW: lambda self, this, path: self.expression( + 423 exp.JSONExtract, + 424 this=this, + 425 expression=path, + 426 ), + 427 TokenType.DARROW: lambda self, this, path: self.expression( + 428 exp.JSONExtractScalar, + 429 this=this, + 430 expression=path, + 431 ), + 432 TokenType.HASH_ARROW: lambda self, this, path: self.expression( + 433 exp.JSONBExtract, + 434 this=this, + 435 expression=path, + 436 ), + 437 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( + 438 exp.JSONBExtractScalar, + 439 this=this, + 440 expression=path, + 441 ), + 442 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( + 443 exp.JSONBContains, + 444 this=this, + 445 expression=key, + 446 ), + 447 } + 448 + 449 EXPRESSION_PARSERS = { + 450 exp.Column: lambda self: self._parse_column(), + 451 exp.DataType: lambda self: self._parse_types(), + 452 exp.From: lambda self: self._parse_from(), + 453 exp.Group: lambda self: self._parse_group(), + 454 exp.Identifier: lambda self: self._parse_id_var(), + 455 exp.Lateral: lambda self: self._parse_lateral(), + 456 exp.Join: lambda self: self._parse_join(), + 457 exp.Order: lambda self: self._parse_order(), + 458 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 459 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 460 exp.Lambda: lambda self: self._parse_lambda(), + 461 exp.Limit: lambda self: self._parse_limit(), + 462 exp.Offset: lambda self: self._parse_offset(), + 463 exp.TableAlias: lambda self: self._parse_table_alias(), + 464 exp.Table: lambda self: self._parse_table(), + 465 exp.Condition: lambda self: self._parse_conjunction(), + 466 exp.Expression: lambda self: self._parse_statement(), + 467 exp.Properties: lambda self: self._parse_properties(), + 468 exp.Where: lambda self: self._parse_where(), + 469 exp.Ordered: lambda self: self._parse_ordered(), + 470 exp.Having: lambda self: self._parse_having(), + 471 exp.With: lambda self: self._parse_with(), + 472 exp.Window: lambda self: self._parse_named_window(), + 473 exp.Qualify: lambda self: self._parse_qualify(), + 474 exp.Returning: lambda self: self._parse_returning(), + 475 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), + 476 } + 477 + 478 STATEMENT_PARSERS = { + 479 TokenType.ALTER: lambda self: self._parse_alter(), + 480 TokenType.BEGIN: lambda self: self._parse_transaction(), + 481 TokenType.CACHE: lambda self: self._parse_cache(), + 482 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), + 483 TokenType.COMMENT: lambda self: self._parse_comment(), + 484 TokenType.CREATE: lambda self: self._parse_create(), + 485 TokenType.DELETE: lambda self: self._parse_delete(), + 486 TokenType.DESC: lambda self: self._parse_describe(), + 487 TokenType.DESCRIBE: lambda self: self._parse_describe(), + 488 TokenType.DROP: lambda self: self._parse_drop(), + 489 TokenType.END: lambda self: self._parse_commit_or_rollback(), + 490 TokenType.INSERT: lambda self: self._parse_insert(), + 491 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), + 492 TokenType.MERGE: lambda self: self._parse_merge(), + 493 TokenType.PRAGMA: lambda self: self.expression(exp.Pragma, this=self._parse_expression()), + 494 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), + 495 TokenType.SET: lambda self: self._parse_set(), + 496 TokenType.UNCACHE: lambda self: self._parse_uncache(), + 497 TokenType.UPDATE: lambda self: self._parse_update(), + 498 TokenType.USE: lambda self: self.expression( + 499 exp.Use, + 500 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) + 501 and exp.Var(this=self._prev.text), + 502 this=self._parse_table(schema=False), + 503 ), + 504 } + 505 + 506 UNARY_PARSERS = { + 507 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op + 508 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), + 509 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), + 510 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), + 511 } + 512 + 513 PRIMARY_PARSERS = { + 514 TokenType.STRING: lambda self, token: self.expression( + 515 exp.Literal, this=token.text, is_string=True + 516 ), + 517 TokenType.NUMBER: lambda self, token: self.expression( + 518 exp.Literal, this=token.text, is_string=False + 519 ), + 520 TokenType.STAR: lambda self, _: self.expression( + 521 exp.Star, + 522 **{"except": self._parse_except(), "replace": self._parse_replace()}, + 523 ), + 524 TokenType.NULL: lambda self, _: self.expression(exp.Null), + 525 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), + 526 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), + 527 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), + 528 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), + 529 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), + 530 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), + 531 TokenType.NATIONAL: lambda self, token: self._parse_national(token), + 532 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), + 533 } + 534 + 535 PLACEHOLDER_PARSERS = { + 536 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), + 537 TokenType.PARAMETER: lambda self: self._parse_parameter(), + 538 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) + 539 if self._match_set((TokenType.NUMBER, TokenType.VAR)) + 540 else None, + 541 } + 542 + 543 RANGE_PARSERS = { + 544 TokenType.BETWEEN: lambda self, this: self._parse_between(this), + 545 TokenType.GLOB: binary_range_parser(exp.Glob), + 546 TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), + 547 TokenType.IN: lambda self, this: self._parse_in(this), + 548 TokenType.IS: lambda self, this: self._parse_is(this), + 549 TokenType.LIKE: binary_range_parser(exp.Like), + 550 TokenType.ILIKE: binary_range_parser(exp.ILike), + 551 TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), + 552 TokenType.RLIKE: binary_range_parser(exp.RegexpLike), + 553 TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), + 554 } + 555 + 556 PROPERTY_PARSERS = { + 557 "AFTER": lambda self: self._parse_afterjournal( + 558 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 559 ), + 560 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), + 561 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), + 562 "BEFORE": lambda self: self._parse_journal( + 563 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 564 ), + 565 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), + 566 "CHARACTER SET": lambda self: self._parse_character_set(), + 567 "CHECKSUM": lambda self: self._parse_checksum(), + 568 "CLUSTER BY": lambda self: self.expression( + 569 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) + 570 ), + 571 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), + 572 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), + 573 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( + 574 default=self._prev.text.upper() == "DEFAULT" + 575 ), + 576 "DEFINER": lambda self: self._parse_definer(), + 577 "DETERMINISTIC": lambda self: self.expression( + 578 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") + 579 ), + 580 "DISTKEY": lambda self: self._parse_distkey(), + 581 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), + 582 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), + 583 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), + 584 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), + 585 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), + 586 "FREESPACE": lambda self: self._parse_freespace(), + 587 "GLOBAL": lambda self: self._parse_temporary(global_=True), + 588 "IMMUTABLE": lambda self: self.expression( + 589 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") + 590 ), + 591 "JOURNAL": lambda self: self._parse_journal( + 592 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 593 ), + 594 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), + 595 "LIKE": lambda self: self._parse_create_like(), + 596 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), + 597 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), + 598 "LOCK": lambda self: self._parse_locking(), + 599 "LOCKING": lambda self: self._parse_locking(), + 600 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), + 601 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), + 602 "MAX": lambda self: self._parse_datablocksize(), + 603 "MAXIMUM": lambda self: self._parse_datablocksize(), + 604 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( + 605 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" + 606 ), + 607 "MIN": lambda self: self._parse_datablocksize(), + 608 "MINIMUM": lambda self: self._parse_datablocksize(), + 609 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), + 610 "NO": lambda self: self._parse_noprimaryindex(), + 611 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), + 612 "ON": lambda self: self._parse_oncommit(), + 613 "PARTITION BY": lambda self: self._parse_partitioned_by(), + 614 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), + 615 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), + 616 "RETURNS": lambda self: self._parse_returns(), + 617 "ROW": lambda self: self._parse_row(), + 618 "ROW_FORMAT": lambda self: self._parse_property_assignment(exp.RowFormatProperty), + 619 "SET": lambda self: self.expression(exp.SetProperty, multi=False), + 620 "SORTKEY": lambda self: self._parse_sortkey(), + 621 "STABLE": lambda self: self.expression( + 622 exp.StabilityProperty, this=exp.Literal.string("STABLE") + 623 ), + 624 "STORED": lambda self: self._parse_stored(), + 625 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 626 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), + 627 "TEMP": lambda self: self._parse_temporary(global_=False), + 628 "TEMPORARY": lambda self: self._parse_temporary(global_=False), + 629 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), + 630 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 631 "VOLATILE": lambda self: self._parse_volatile_property(), + 632 "WITH": lambda self: self._parse_with_property(), + 633 } + 634 + 635 CONSTRAINT_PARSERS = { + 636 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), + 637 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), + 638 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), + 639 "CHARACTER SET": lambda self: self.expression( + 640 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() + 641 ), + 642 "CHECK": lambda self: self.expression( + 643 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) + 644 ), + 645 "COLLATE": lambda self: self.expression( + 646 exp.CollateColumnConstraint, this=self._parse_var() + 647 ), + 648 "COMMENT": lambda self: self.expression( + 649 exp.CommentColumnConstraint, this=self._parse_string() + 650 ), + 651 "COMPRESS": lambda self: self._parse_compress(), + 652 "DEFAULT": lambda self: self.expression( + 653 exp.DefaultColumnConstraint, this=self._parse_bitwise() + 654 ), + 655 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), + 656 "FOREIGN KEY": lambda self: self._parse_foreign_key(), + 657 "FORMAT": lambda self: self.expression( + 658 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() + 659 ), + 660 "GENERATED": lambda self: self._parse_generated_as_identity(), + 661 "IDENTITY": lambda self: self._parse_auto_increment(), + 662 "INLINE": lambda self: self._parse_inline(), + 663 "LIKE": lambda self: self._parse_create_like(), + 664 "NOT": lambda self: self._parse_not_constraint(), + 665 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), + 666 "ON": lambda self: self._match(TokenType.UPDATE) + 667 and self.expression(exp.OnUpdateColumnConstraint, this=self._parse_function()), + 668 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), + 669 "PRIMARY KEY": lambda self: self._parse_primary_key(), + 670 "REFERENCES": lambda self: self._parse_references(match=False), + 671 "TITLE": lambda self: self.expression( + 672 exp.TitleColumnConstraint, this=self._parse_var_or_string() + 673 ), + 674 "UNIQUE": lambda self: self._parse_unique(), + 675 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), + 676 } + 677 + 678 ALTER_PARSERS = { + 679 "ADD": lambda self: self._parse_alter_table_add(), + 680 "ALTER": lambda self: self._parse_alter_table_alter(), + 681 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), + 682 "DROP": lambda self: self._parse_alter_table_drop(), + 683 "RENAME": lambda self: self._parse_alter_table_rename(), + 684 } + 685 + 686 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} + 687 + 688 NO_PAREN_FUNCTION_PARSERS = { + 689 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), + 690 TokenType.CASE: lambda self: self._parse_case(), + 691 TokenType.IF: lambda self: self._parse_if(), + 692 TokenType.NEXT_VALUE_FOR: lambda self: self.expression( + 693 exp.NextValueFor, + 694 this=self._parse_column(), + 695 order=self._match(TokenType.OVER) and self._parse_wrapped(self._parse_order), + 696 ), + 697 } + 698 + 699 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 700 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), + 701 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), + 702 "DECODE": lambda self: self._parse_decode(), + 703 "EXTRACT": lambda self: self._parse_extract(), + 704 "JSON_OBJECT": lambda self: self._parse_json_object(), + 705 "LOG": lambda self: self._parse_logarithm(), + 706 "MATCH": lambda self: self._parse_match_against(), + 707 "POSITION": lambda self: self._parse_position(), + 708 "STRING_AGG": lambda self: self._parse_string_agg(), + 709 "SUBSTRING": lambda self: self._parse_substring(), + 710 "TRIM": lambda self: self._parse_trim(), + 711 "TRY_CAST": lambda self: self._parse_cast(False), + 712 "TRY_CONVERT": lambda self: self._parse_convert(False), + 713 } + 714 + 715 QUERY_MODIFIER_PARSERS = { + 716 "match": lambda self: self._parse_match_recognize(), + 717 "where": lambda self: self._parse_where(), + 718 "group": lambda self: self._parse_group(), + 719 "having": lambda self: self._parse_having(), + 720 "qualify": lambda self: self._parse_qualify(), + 721 "windows": lambda self: self._parse_window_clause(), + 722 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), + 723 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 724 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 725 "order": lambda self: self._parse_order(), + 726 "limit": lambda self: self._parse_limit(), + 727 "offset": lambda self: self._parse_offset(), + 728 "lock": lambda self: self._parse_lock(), + 729 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 730 } + 731 + 732 SET_PARSERS = { + 733 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), + 734 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), + 735 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), + 736 "TRANSACTION": lambda self: self._parse_set_transaction(), + 737 } 738 - 739 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 739 SHOW_PARSERS: t.Dict[str, t.Callable] = {} 740 - 741 TRANSACTION_CHARACTERISTICS = { - 742 "ISOLATION LEVEL REPEATABLE READ", - 743 "ISOLATION LEVEL READ COMMITTED", - 744 "ISOLATION LEVEL READ UNCOMMITTED", - 745 "ISOLATION LEVEL SERIALIZABLE", - 746 "READ WRITE", - 747 "READ ONLY", - 748 } - 749 - 750 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} - 751 - 752 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} - 753 - 754 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 741 TYPE_LITERAL_PARSERS: t.Dict[exp.DataType.Type, t.Callable] = {} + 742 + 743 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 744 + 745 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 746 + 747 TRANSACTION_CHARACTERISTICS = { + 748 "ISOLATION LEVEL REPEATABLE READ", + 749 "ISOLATION LEVEL READ COMMITTED", + 750 "ISOLATION LEVEL READ UNCOMMITTED", + 751 "ISOLATION LEVEL SERIALIZABLE", + 752 "READ WRITE", + 753 "READ ONLY", + 754 } 755 - 756 STRICT_CAST = True + 756 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} 757 - 758 CONVERT_TYPE_FIRST = False - 759 - 760 QUOTED_PIVOT_COLUMNS: t.Optional[bool] = None - 761 PREFIXED_PIVOT_COLUMNS = False + 758 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 759 WINDOW_BEFORE_PAREN_TOKENS = {TokenType.OVER} + 760 + 761 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} 762 - 763 LOG_BASE_FIRST = True - 764 LOG_DEFAULTS_TO_LN = False - 765 - 766 __slots__ = ( - 767 "error_level", - 768 "error_message_context", - 769 "sql", - 770 "errors", - 771 "index_offset", - 772 "unnest_column_only", - 773 "alias_post_tablesample", - 774 "max_errors", - 775 "null_ordering", - 776 "_tokens", - 777 "_index", - 778 "_curr", - 779 "_next", - 780 "_prev", - 781 "_prev_comments", - 782 "_show_trie", - 783 "_set_trie", - 784 ) - 785 - 786 def __init__( - 787 self, - 788 error_level: t.Optional[ErrorLevel] = None, - 789 error_message_context: int = 100, - 790 index_offset: int = 0, - 791 unnest_column_only: bool = False, - 792 alias_post_tablesample: bool = False, - 793 max_errors: int = 3, - 794 null_ordering: t.Optional[str] = None, - 795 ): - 796 self.error_level = error_level or ErrorLevel.IMMEDIATE - 797 self.error_message_context = error_message_context - 798 self.index_offset = index_offset - 799 self.unnest_column_only = unnest_column_only - 800 self.alias_post_tablesample = alias_post_tablesample - 801 self.max_errors = max_errors - 802 self.null_ordering = null_ordering - 803 self.reset() - 804 - 805 def reset(self): - 806 self.sql = "" - 807 self.errors = [] - 808 self._tokens = [] - 809 self._index = 0 - 810 self._curr = None - 811 self._next = None - 812 self._prev = None - 813 self._prev_comments = None - 814 - 815 def parse( - 816 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None - 817 ) -> t.List[t.Optional[exp.Expression]]: - 818 """ - 819 Parses a list of tokens and returns a list of syntax trees, one tree - 820 per parsed SQL statement. + 763 STRICT_CAST = True + 764 + 765 CONVERT_TYPE_FIRST = False + 766 + 767 QUOTED_PIVOT_COLUMNS: t.Optional[bool] = None + 768 PREFIXED_PIVOT_COLUMNS = False + 769 + 770 LOG_BASE_FIRST = True + 771 LOG_DEFAULTS_TO_LN = False + 772 + 773 __slots__ = ( + 774 "error_level", + 775 "error_message_context", + 776 "sql", + 777 "errors", + 778 "index_offset", + 779 "unnest_column_only", + 780 "alias_post_tablesample", + 781 "max_errors", + 782 "null_ordering", + 783 "_tokens", + 784 "_index", + 785 "_curr", + 786 "_next", + 787 "_prev", + 788 "_prev_comments", + 789 "_show_trie", + 790 "_set_trie", + 791 ) + 792 + 793 def __init__( + 794 self, + 795 error_level: t.Optional[ErrorLevel] = None, + 796 error_message_context: int = 100, + 797 index_offset: int = 0, + 798 unnest_column_only: bool = False, + 799 alias_post_tablesample: bool = False, + 800 max_errors: int = 3, + 801 null_ordering: t.Optional[str] = None, + 802 ): + 803 self.error_level = error_level or ErrorLevel.IMMEDIATE + 804 self.error_message_context = error_message_context + 805 self.index_offset = index_offset + 806 self.unnest_column_only = unnest_column_only + 807 self.alias_post_tablesample = alias_post_tablesample + 808 self.max_errors = max_errors + 809 self.null_ordering = null_ordering + 810 self.reset() + 811 + 812 def reset(self): + 813 self.sql = "" + 814 self.errors = [] + 815 self._tokens = [] + 816 self._index = 0 + 817 self._curr = None + 818 self._next = None + 819 self._prev = None + 820 self._prev_comments = None 821 - 822 Args: - 823 raw_tokens: the list of tokens. - 824 sql: the original SQL string, used to produce helpful debug messages. - 825 - 826 Returns: - 827 The list of syntax trees. - 828 """ - 829 return self._parse( - 830 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql - 831 ) + 822 def parse( + 823 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 824 ) -> t.List[t.Optional[exp.Expression]]: + 825 """ + 826 Parses a list of tokens and returns a list of syntax trees, one tree + 827 per parsed SQL statement. + 828 + 829 Args: + 830 raw_tokens: the list of tokens. + 831 sql: the original SQL string, used to produce helpful debug messages. 832 - 833 def parse_into( - 834 self, - 835 expression_types: exp.IntoType, - 836 raw_tokens: t.List[Token], - 837 sql: t.Optional[str] = None, - 838 ) -> t.List[t.Optional[exp.Expression]]: - 839 """ - 840 Parses a list of tokens into a given Expression type. If a collection of Expression - 841 types is given instead, this method will try to parse the token list into each one - 842 of them, stopping at the first for which the parsing succeeds. - 843 - 844 Args: - 845 expression_types: the expression type(s) to try and parse the token list into. - 846 raw_tokens: the list of tokens. - 847 sql: the original SQL string, used to produce helpful debug messages. - 848 - 849 Returns: - 850 The target Expression. - 851 """ - 852 errors = [] - 853 for expression_type in ensure_collection(expression_types): - 854 parser = self.EXPRESSION_PARSERS.get(expression_type) - 855 if not parser: - 856 raise TypeError(f"No parser registered for {expression_type}") - 857 try: - 858 return self._parse(parser, raw_tokens, sql) - 859 except ParseError as e: - 860 e.errors[0]["into_expression"] = expression_type - 861 errors.append(e) - 862 raise ParseError( - 863 f"Failed to parse into {expression_types}", - 864 errors=merge_errors(errors), - 865 ) from errors[-1] - 866 - 867 def _parse( - 868 self, - 869 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], - 870 raw_tokens: t.List[Token], - 871 sql: t.Optional[str] = None, - 872 ) -> t.List[t.Optional[exp.Expression]]: - 873 self.reset() - 874 self.sql = sql or "" - 875 total = len(raw_tokens) - 876 chunks: t.List[t.List[Token]] = [[]] - 877 - 878 for i, token in enumerate(raw_tokens): - 879 if token.token_type == TokenType.SEMICOLON: - 880 if i < total - 1: - 881 chunks.append([]) - 882 else: - 883 chunks[-1].append(token) + 833 Returns: + 834 The list of syntax trees. + 835 """ + 836 return self._parse( + 837 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 838 ) + 839 + 840 def parse_into( + 841 self, + 842 expression_types: exp.IntoType, + 843 raw_tokens: t.List[Token], + 844 sql: t.Optional[str] = None, + 845 ) -> t.List[t.Optional[exp.Expression]]: + 846 """ + 847 Parses a list of tokens into a given Expression type. If a collection of Expression + 848 types is given instead, this method will try to parse the token list into each one + 849 of them, stopping at the first for which the parsing succeeds. + 850 + 851 Args: + 852 expression_types: the expression type(s) to try and parse the token list into. + 853 raw_tokens: the list of tokens. + 854 sql: the original SQL string, used to produce helpful debug messages. + 855 + 856 Returns: + 857 The target Expression. + 858 """ + 859 errors = [] + 860 for expression_type in ensure_collection(expression_types): + 861 parser = self.EXPRESSION_PARSERS.get(expression_type) + 862 if not parser: + 863 raise TypeError(f"No parser registered for {expression_type}") + 864 try: + 865 return self._parse(parser, raw_tokens, sql) + 866 except ParseError as e: + 867 e.errors[0]["into_expression"] = expression_type + 868 errors.append(e) + 869 raise ParseError( + 870 f"Failed to parse into {expression_types}", + 871 errors=merge_errors(errors), + 872 ) from errors[-1] + 873 + 874 def _parse( + 875 self, + 876 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 877 raw_tokens: t.List[Token], + 878 sql: t.Optional[str] = None, + 879 ) -> t.List[t.Optional[exp.Expression]]: + 880 self.reset() + 881 self.sql = sql or "" + 882 total = len(raw_tokens) + 883 chunks: t.List[t.List[Token]] = [[]] 884 - 885 expressions = [] - 886 - 887 for tokens in chunks: - 888 self._index = -1 - 889 self._tokens = tokens - 890 self._advance() + 885 for i, token in enumerate(raw_tokens): + 886 if token.token_type == TokenType.SEMICOLON: + 887 if i < total - 1: + 888 chunks.append([]) + 889 else: + 890 chunks[-1].append(token) 891 - 892 expressions.append(parse_method(self)) + 892 expressions = [] 893 - 894 if self._index < len(self._tokens): - 895 self.raise_error("Invalid expression / Unexpected token") - 896 - 897 self.check_errors() + 894 for tokens in chunks: + 895 self._index = -1 + 896 self._tokens = tokens + 897 self._advance() 898 - 899 return expressions + 899 expressions.append(parse_method(self)) 900 - 901 def check_errors(self) -> None: - 902 """ - 903 Logs or raises any found errors, depending on the chosen error level setting. - 904 """ - 905 if self.error_level == ErrorLevel.WARN: - 906 for error in self.errors: - 907 logger.error(str(error)) - 908 elif self.error_level == ErrorLevel.RAISE and self.errors: - 909 raise ParseError( - 910 concat_messages(self.errors, self.max_errors), - 911 errors=merge_errors(self.errors), - 912 ) - 913 - 914 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: - 915 """ - 916 Appends an error in the list of recorded errors or raises it, depending on the chosen - 917 error level setting. - 918 """ - 919 token = token or self._curr or self._prev or Token.string("") - 920 start = token.start - 921 end = token.end - 922 start_context = self.sql[max(start - self.error_message_context, 0) : start] - 923 highlight = self.sql[start:end] - 924 end_context = self.sql[end : end + self.error_message_context] - 925 - 926 error = ParseError.new( - 927 f"{message}. Line {token.line}, Col: {token.col}.\n" - 928 f" {start_context}\033[4m{highlight}\033[0m{end_context}", - 929 description=message, - 930 line=token.line, - 931 col=token.col, - 932 start_context=start_context, - 933 highlight=highlight, - 934 end_context=end_context, - 935 ) - 936 - 937 if self.error_level == ErrorLevel.IMMEDIATE: - 938 raise error - 939 - 940 self.errors.append(error) - 941 - 942 def expression( - 943 self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs - 944 ) -> E: - 945 """ - 946 Creates a new, validated Expression. - 947 - 948 Args: - 949 exp_class: the expression class to instantiate. - 950 comments: an optional list of comments to attach to the expression. - 951 kwargs: the arguments to set for the expression along with their respective values. - 952 - 953 Returns: - 954 The target expression. - 955 """ - 956 instance = exp_class(**kwargs) - 957 if self._prev_comments: - 958 instance.comments = self._prev_comments - 959 self._prev_comments = None - 960 if comments: - 961 instance.comments = comments - 962 self.validate_expression(instance) - 963 return instance - 964 - 965 def validate_expression( - 966 self, expression: exp.Expression, args: t.Optional[t.List] = None - 967 ) -> None: - 968 """ - 969 Validates an already instantiated expression, making sure that all its mandatory arguments - 970 are set. + 901 if self._index < len(self._tokens): + 902 self.raise_error("Invalid expression / Unexpected token") + 903 + 904 self.check_errors() + 905 + 906 return expressions + 907 + 908 def check_errors(self) -> None: + 909 """ + 910 Logs or raises any found errors, depending on the chosen error level setting. + 911 """ + 912 if self.error_level == ErrorLevel.WARN: + 913 for error in self.errors: + 914 logger.error(str(error)) + 915 elif self.error_level == ErrorLevel.RAISE and self.errors: + 916 raise ParseError( + 917 concat_messages(self.errors, self.max_errors), + 918 errors=merge_errors(self.errors), + 919 ) + 920 + 921 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 922 """ + 923 Appends an error in the list of recorded errors or raises it, depending on the chosen + 924 error level setting. + 925 """ + 926 token = token or self._curr or self._prev or Token.string("") + 927 start = token.start + 928 end = token.end + 929 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 930 highlight = self.sql[start:end] + 931 end_context = self.sql[end : end + self.error_message_context] + 932 + 933 error = ParseError.new( + 934 f"{message}. Line {token.line}, Col: {token.col}.\n" + 935 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 936 description=message, + 937 line=token.line, + 938 col=token.col, + 939 start_context=start_context, + 940 highlight=highlight, + 941 end_context=end_context, + 942 ) + 943 + 944 if self.error_level == ErrorLevel.IMMEDIATE: + 945 raise error + 946 + 947 self.errors.append(error) + 948 + 949 def expression( + 950 self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs + 951 ) -> E: + 952 """ + 953 Creates a new, validated Expression. + 954 + 955 Args: + 956 exp_class: the expression class to instantiate. + 957 comments: an optional list of comments to attach to the expression. + 958 kwargs: the arguments to set for the expression along with their respective values. + 959 + 960 Returns: + 961 The target expression. + 962 """ + 963 instance = exp_class(**kwargs) + 964 if self._prev_comments: + 965 instance.comments = self._prev_comments + 966 self._prev_comments = None + 967 if comments: + 968 instance.comments = comments + 969 self.validate_expression(instance) + 970 return instance 971 - 972 Args: - 973 expression: the expression to validate. - 974 args: an optional list of items that was used to instantiate the expression, if it's a Func. - 975 """ - 976 if self.error_level == ErrorLevel.IGNORE: - 977 return + 972 def validate_expression( + 973 self, expression: exp.Expression, args: t.Optional[t.List] = None + 974 ) -> None: + 975 """ + 976 Validates an already instantiated expression, making sure that all its mandatory arguments + 977 are set. 978 - 979 for error_message in expression.error_messages(args): - 980 self.raise_error(error_message) - 981 - 982 def _find_sql(self, start: Token, end: Token) -> str: - 983 return self.sql[start.start : end.end] - 984 - 985 def _advance(self, times: int = 1) -> None: - 986 self._index += times - 987 self._curr = seq_get(self._tokens, self._index) - 988 self._next = seq_get(self._tokens, self._index + 1) - 989 if self._index > 0: - 990 self._prev = self._tokens[self._index - 1] - 991 self._prev_comments = self._prev.comments - 992 else: - 993 self._prev = None - 994 self._prev_comments = None - 995 - 996 def _retreat(self, index: int) -> None: - 997 if index != self._index: - 998 self._advance(index - self._index) - 999 -1000 def _parse_command(self) -> exp.Command: -1001 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) + 979 Args: + 980 expression: the expression to validate. + 981 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 982 """ + 983 if self.error_level == ErrorLevel.IGNORE: + 984 return + 985 + 986 for error_message in expression.error_messages(args): + 987 self.raise_error(error_message) + 988 + 989 def _find_sql(self, start: Token, end: Token) -> str: + 990 return self.sql[start.start : end.end] + 991 + 992 def _advance(self, times: int = 1) -> None: + 993 self._index += times + 994 self._curr = seq_get(self._tokens, self._index) + 995 self._next = seq_get(self._tokens, self._index + 1) + 996 if self._index > 0: + 997 self._prev = self._tokens[self._index - 1] + 998 self._prev_comments = self._prev.comments + 999 else: +1000 self._prev = None +1001 self._prev_comments = None 1002 -1003 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: -1004 start = self._prev -1005 exists = self._parse_exists() if allow_exists else None +1003 def _retreat(self, index: int) -> None: +1004 if index != self._index: +1005 self._advance(index - self._index) 1006 -1007 self._match(TokenType.ON) -1008 -1009 kind = self._match_set(self.CREATABLES) and self._prev -1010 -1011 if not kind: -1012 return self._parse_as_command(start) +1007 def _parse_command(self) -> exp.Command: +1008 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) +1009 +1010 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: +1011 start = self._prev +1012 exists = self._parse_exists() if allow_exists else None 1013 -1014 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1015 this = self._parse_user_defined_function(kind=kind.token_type) -1016 elif kind.token_type == TokenType.TABLE: -1017 this = self._parse_table(alias_tokens=self.COMMENT_TABLE_ALIAS_TOKENS) -1018 elif kind.token_type == TokenType.COLUMN: -1019 this = self._parse_column() -1020 else: -1021 this = self._parse_id_var() -1022 -1023 self._match(TokenType.IS) -1024 -1025 return self.expression( -1026 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists -1027 ) -1028 -1029 def _parse_statement(self) -> t.Optional[exp.Expression]: -1030 if self._curr is None: -1031 return None -1032 -1033 if self._match_set(self.STATEMENT_PARSERS): -1034 return self.STATEMENT_PARSERS[self._prev.token_type](self) +1014 self._match(TokenType.ON) +1015 +1016 kind = self._match_set(self.CREATABLES) and self._prev +1017 +1018 if not kind: +1019 return self._parse_as_command(start) +1020 +1021 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1022 this = self._parse_user_defined_function(kind=kind.token_type) +1023 elif kind.token_type == TokenType.TABLE: +1024 this = self._parse_table(alias_tokens=self.COMMENT_TABLE_ALIAS_TOKENS) +1025 elif kind.token_type == TokenType.COLUMN: +1026 this = self._parse_column() +1027 else: +1028 this = self._parse_id_var() +1029 +1030 self._match(TokenType.IS) +1031 +1032 return self.expression( +1033 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists +1034 ) 1035 -1036 if self._match_set(Tokenizer.COMMANDS): -1037 return self._parse_command() -1038 -1039 expression = self._parse_expression() -1040 expression = self._parse_set_operations(expression) if expression else self._parse_select() -1041 -1042 self._parse_query_modifiers(expression) -1043 return expression -1044 -1045 def _parse_drop(self) -> t.Optional[exp.Drop | exp.Command]: -1046 start = self._prev -1047 temporary = self._match(TokenType.TEMPORARY) -1048 materialized = self._match(TokenType.MATERIALIZED) -1049 kind = self._match_set(self.CREATABLES) and self._prev.text -1050 if not kind: -1051 return self._parse_as_command(start) -1052 -1053 return self.expression( -1054 exp.Drop, -1055 exists=self._parse_exists(), -1056 this=self._parse_table(schema=True), -1057 kind=kind, -1058 temporary=temporary, -1059 materialized=materialized, -1060 cascade=self._match(TokenType.CASCADE), -1061 constraints=self._match_text_seq("CONSTRAINTS"), -1062 purge=self._match_text_seq("PURGE"), -1063 ) -1064 -1065 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: -1066 return ( -1067 self._match(TokenType.IF) -1068 and (not not_ or self._match(TokenType.NOT)) -1069 and self._match(TokenType.EXISTS) +1036 def _parse_statement(self) -> t.Optional[exp.Expression]: +1037 if self._curr is None: +1038 return None +1039 +1040 if self._match_set(self.STATEMENT_PARSERS): +1041 return self.STATEMENT_PARSERS[self._prev.token_type](self) +1042 +1043 if self._match_set(Tokenizer.COMMANDS): +1044 return self._parse_command() +1045 +1046 expression = self._parse_expression() +1047 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1048 +1049 self._parse_query_modifiers(expression) +1050 return expression +1051 +1052 def _parse_drop(self) -> t.Optional[exp.Drop | exp.Command]: +1053 start = self._prev +1054 temporary = self._match(TokenType.TEMPORARY) +1055 materialized = self._match(TokenType.MATERIALIZED) +1056 kind = self._match_set(self.CREATABLES) and self._prev.text +1057 if not kind: +1058 return self._parse_as_command(start) +1059 +1060 return self.expression( +1061 exp.Drop, +1062 exists=self._parse_exists(), +1063 this=self._parse_table(schema=True), +1064 kind=kind, +1065 temporary=temporary, +1066 materialized=materialized, +1067 cascade=self._match(TokenType.CASCADE), +1068 constraints=self._match_text_seq("CONSTRAINTS"), +1069 purge=self._match_text_seq("PURGE"), 1070 ) 1071 -1072 def _parse_create(self) -> t.Optional[exp.Expression]: -1073 start = self._prev -1074 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( -1075 TokenType.OR, TokenType.REPLACE -1076 ) -1077 unique = self._match(TokenType.UNIQUE) +1072 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1073 return ( +1074 self._match(TokenType.IF) +1075 and (not not_ or self._match(TokenType.NOT)) +1076 and self._match(TokenType.EXISTS) +1077 ) 1078 -1079 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1080 self._match(TokenType.TABLE) -1081 -1082 properties = None -1083 create_token = self._match_set(self.CREATABLES) and self._prev -1084 -1085 if not create_token: -1086 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE -1087 create_token = self._match_set(self.CREATABLES) and self._prev +1079 def _parse_create(self) -> t.Optional[exp.Expression]: +1080 start = self._prev +1081 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1082 TokenType.OR, TokenType.REPLACE +1083 ) +1084 unique = self._match(TokenType.UNIQUE) +1085 +1086 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1087 self._match(TokenType.TABLE) 1088 -1089 if not properties or not create_token: -1090 return self._parse_as_command(start) +1089 properties = None +1090 create_token = self._match_set(self.CREATABLES) and self._prev 1091 -1092 exists = self._parse_exists(not_=True) -1093 this = None -1094 expression = None -1095 indexes = None -1096 no_schema_binding = None -1097 begin = None +1092 if not create_token: +1093 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1094 create_token = self._match_set(self.CREATABLES) and self._prev +1095 +1096 if not properties or not create_token: +1097 return self._parse_as_command(start) 1098 -1099 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1100 this = self._parse_user_defined_function(kind=create_token.token_type) -1101 temp_properties = self._parse_properties() -1102 if properties and temp_properties: -1103 properties.expressions.extend(temp_properties.expressions) -1104 elif temp_properties: -1105 properties = temp_properties -1106 -1107 self._match(TokenType.ALIAS) -1108 begin = self._match(TokenType.BEGIN) -1109 return_ = self._match_text_seq("RETURN") -1110 expression = self._parse_statement() -1111 -1112 if return_: -1113 expression = self.expression(exp.Return, this=expression) -1114 elif create_token.token_type == TokenType.INDEX: -1115 this = self._parse_index() -1116 elif create_token.token_type in self.DB_CREATABLES: -1117 table_parts = self._parse_table_parts(schema=True) +1099 exists = self._parse_exists(not_=True) +1100 this = None +1101 expression = None +1102 indexes = None +1103 no_schema_binding = None +1104 begin = None +1105 +1106 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1107 this = self._parse_user_defined_function(kind=create_token.token_type) +1108 temp_properties = self._parse_properties() +1109 if properties and temp_properties: +1110 properties.expressions.extend(temp_properties.expressions) +1111 elif temp_properties: +1112 properties = temp_properties +1113 +1114 self._match(TokenType.ALIAS) +1115 begin = self._match(TokenType.BEGIN) +1116 return_ = self._match_text_seq("RETURN") +1117 expression = self._parse_statement() 1118 -1119 # exp.Properties.Location.POST_NAME -1120 if self._match(TokenType.COMMA): -1121 temp_properties = self._parse_properties(before=True) -1122 if properties and temp_properties: -1123 properties.expressions.extend(temp_properties.expressions) -1124 elif temp_properties: -1125 properties = temp_properties -1126 -1127 this = self._parse_schema(this=table_parts) -1128 -1129 # exp.Properties.Location.POST_SCHEMA and POST_WITH -1130 temp_properties = self._parse_properties() -1131 if properties and temp_properties: -1132 properties.expressions.extend(temp_properties.expressions) -1133 elif temp_properties: -1134 properties = temp_properties +1119 if return_: +1120 expression = self.expression(exp.Return, this=expression) +1121 elif create_token.token_type == TokenType.INDEX: +1122 this = self._parse_index() +1123 elif create_token.token_type in self.DB_CREATABLES: +1124 table_parts = self._parse_table_parts(schema=True) +1125 +1126 # exp.Properties.Location.POST_NAME +1127 if self._match(TokenType.COMMA): +1128 temp_properties = self._parse_properties(before=True) +1129 if properties and temp_properties: +1130 properties.expressions.extend(temp_properties.expressions) +1131 elif temp_properties: +1132 properties = temp_properties +1133 +1134 this = self._parse_schema(this=table_parts) 1135 -1136 self._match(TokenType.ALIAS) -1137 -1138 # exp.Properties.Location.POST_ALIAS -1139 if not ( -1140 self._match(TokenType.SELECT, advance=False) -1141 or self._match(TokenType.WITH, advance=False) -1142 or self._match(TokenType.L_PAREN, advance=False) -1143 ): -1144 temp_properties = self._parse_properties() -1145 if properties and temp_properties: -1146 properties.expressions.extend(temp_properties.expressions) -1147 elif temp_properties: -1148 properties = temp_properties -1149 -1150 expression = self._parse_ddl_select() -1151 -1152 if create_token.token_type == TokenType.TABLE: -1153 # exp.Properties.Location.POST_EXPRESSION -1154 temp_properties = self._parse_properties() -1155 if properties and temp_properties: -1156 properties.expressions.extend(temp_properties.expressions) -1157 elif temp_properties: -1158 properties = temp_properties -1159 -1160 indexes = [] -1161 while True: -1162 index = self._parse_create_table_index() -1163 -1164 # exp.Properties.Location.POST_INDEX -1165 if self._match(TokenType.PARTITION_BY, advance=False): -1166 temp_properties = self._parse_properties() -1167 if properties and temp_properties: -1168 properties.expressions.extend(temp_properties.expressions) -1169 elif temp_properties: -1170 properties = temp_properties -1171 -1172 if not index: -1173 break -1174 else: -1175 indexes.append(index) -1176 elif create_token.token_type == TokenType.VIEW: -1177 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): -1178 no_schema_binding = True -1179 -1180 return self.expression( -1181 exp.Create, -1182 this=this, -1183 kind=create_token.text, -1184 replace=replace, -1185 unique=unique, -1186 expression=expression, -1187 exists=exists, -1188 properties=properties, -1189 indexes=indexes, -1190 no_schema_binding=no_schema_binding, -1191 begin=begin, -1192 ) -1193 -1194 def _parse_property_before(self) -> t.Optional[exp.Expression]: -1195 self._match(TokenType.COMMA) -1196 -1197 # parsers look to _prev for no/dual/default, so need to consume first -1198 self._match_text_seq("NO") -1199 self._match_text_seq("DUAL") -1200 self._match_text_seq("DEFAULT") -1201 -1202 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1203 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1204 -1205 return None -1206 -1207 def _parse_property(self) -> t.Optional[exp.Expression]: -1208 if self._match_texts(self.PROPERTY_PARSERS): -1209 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) -1210 -1211 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1212 return self._parse_character_set(default=True) +1136 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1137 temp_properties = self._parse_properties() +1138 if properties and temp_properties: +1139 properties.expressions.extend(temp_properties.expressions) +1140 elif temp_properties: +1141 properties = temp_properties +1142 +1143 self._match(TokenType.ALIAS) +1144 +1145 # exp.Properties.Location.POST_ALIAS +1146 if not ( +1147 self._match(TokenType.SELECT, advance=False) +1148 or self._match(TokenType.WITH, advance=False) +1149 or self._match(TokenType.L_PAREN, advance=False) +1150 ): +1151 temp_properties = self._parse_properties() +1152 if properties and temp_properties: +1153 properties.expressions.extend(temp_properties.expressions) +1154 elif temp_properties: +1155 properties = temp_properties +1156 +1157 expression = self._parse_ddl_select() +1158 +1159 if create_token.token_type == TokenType.TABLE: +1160 # exp.Properties.Location.POST_EXPRESSION +1161 temp_properties = self._parse_properties() +1162 if properties and temp_properties: +1163 properties.expressions.extend(temp_properties.expressions) +1164 elif temp_properties: +1165 properties = temp_properties +1166 +1167 indexes = [] +1168 while True: +1169 index = self._parse_create_table_index() +1170 +1171 # exp.Properties.Location.POST_INDEX +1172 if self._match(TokenType.PARTITION_BY, advance=False): +1173 temp_properties = self._parse_properties() +1174 if properties and temp_properties: +1175 properties.expressions.extend(temp_properties.expressions) +1176 elif temp_properties: +1177 properties = temp_properties +1178 +1179 if not index: +1180 break +1181 else: +1182 indexes.append(index) +1183 elif create_token.token_type == TokenType.VIEW: +1184 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1185 no_schema_binding = True +1186 +1187 return self.expression( +1188 exp.Create, +1189 this=this, +1190 kind=create_token.text, +1191 replace=replace, +1192 unique=unique, +1193 expression=expression, +1194 exists=exists, +1195 properties=properties, +1196 indexes=indexes, +1197 no_schema_binding=no_schema_binding, +1198 begin=begin, +1199 ) +1200 +1201 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1202 self._match(TokenType.COMMA) +1203 +1204 # parsers look to _prev for no/dual/default, so need to consume first +1205 self._match_text_seq("NO") +1206 self._match_text_seq("DUAL") +1207 self._match_text_seq("DEFAULT") +1208 +1209 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1210 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) +1211 +1212 return None 1213 -1214 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1215 return self._parse_sortkey(compound=True) -1216 -1217 if self._match_text_seq("SQL", "SECURITY"): -1218 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) -1219 -1220 assignment = self._match_pair( -1221 TokenType.VAR, TokenType.EQ, advance=False -1222 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1214 def _parse_property(self) -> t.Optional[exp.Expression]: +1215 if self._match_texts(self.PROPERTY_PARSERS): +1216 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1217 +1218 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1219 return self._parse_character_set(default=True) +1220 +1221 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1222 return self._parse_sortkey(compound=True) 1223 -1224 if assignment: -1225 key = self._parse_var_or_string() -1226 self._match(TokenType.EQ) -1227 return self.expression(exp.Property, this=key, value=self._parse_column()) -1228 -1229 return None +1224 if self._match_text_seq("SQL", "SECURITY"): +1225 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) +1226 +1227 assignment = self._match_pair( +1228 TokenType.VAR, TokenType.EQ, advance=False +1229 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) 1230 -1231 def _parse_stored(self) -> exp.Expression: -1232 self._match(TokenType.ALIAS) -1233 -1234 input_format = self._parse_string() if self._match_text_seq("INPUTFORMAT") else None -1235 output_format = self._parse_string() if self._match_text_seq("OUTPUTFORMAT") else None -1236 -1237 return self.expression( -1238 exp.FileFormatProperty, -1239 this=self.expression( -1240 exp.InputOutputFormat, input_format=input_format, output_format=output_format -1241 ) -1242 if input_format or output_format -1243 else self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1244 ) -1245 -1246 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: -1247 self._match(TokenType.EQ) -1248 self._match(TokenType.ALIAS) -1249 return self.expression( -1250 exp_class, -1251 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1252 ) -1253 -1254 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: -1255 properties = [] -1256 -1257 while True: -1258 if before: -1259 identified_property = self._parse_property_before() -1260 else: -1261 identified_property = self._parse_property() -1262 -1263 if not identified_property: -1264 break -1265 for p in ensure_list(identified_property): -1266 properties.append(p) -1267 -1268 if properties: -1269 return self.expression(exp.Properties, expressions=properties) -1270 -1271 return None -1272 -1273 def _parse_fallback(self, no=False) -> exp.Expression: -1274 self._match_text_seq("FALLBACK") -1275 return self.expression( -1276 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") -1277 ) -1278 -1279 def _parse_volatile_property(self) -> exp.Expression: -1280 if self._index >= 2: -1281 pre_volatile_token = self._tokens[self._index - 2] -1282 else: -1283 pre_volatile_token = None -1284 -1285 if pre_volatile_token and pre_volatile_token.token_type in ( -1286 TokenType.CREATE, -1287 TokenType.REPLACE, -1288 TokenType.UNIQUE, -1289 ): -1290 return exp.VolatileProperty() +1231 if assignment: +1232 key = self._parse_var_or_string() +1233 self._match(TokenType.EQ) +1234 return self.expression(exp.Property, this=key, value=self._parse_column()) +1235 +1236 return None +1237 +1238 def _parse_stored(self) -> exp.Expression: +1239 self._match(TokenType.ALIAS) +1240 +1241 input_format = self._parse_string() if self._match_text_seq("INPUTFORMAT") else None +1242 output_format = self._parse_string() if self._match_text_seq("OUTPUTFORMAT") else None +1243 +1244 return self.expression( +1245 exp.FileFormatProperty, +1246 this=self.expression( +1247 exp.InputOutputFormat, input_format=input_format, output_format=output_format +1248 ) +1249 if input_format or output_format +1250 else self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1251 ) +1252 +1253 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1254 self._match(TokenType.EQ) +1255 self._match(TokenType.ALIAS) +1256 return self.expression( +1257 exp_class, +1258 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1259 ) +1260 +1261 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1262 properties = [] +1263 +1264 while True: +1265 if before: +1266 identified_property = self._parse_property_before() +1267 else: +1268 identified_property = self._parse_property() +1269 +1270 if not identified_property: +1271 break +1272 for p in ensure_list(identified_property): +1273 properties.append(p) +1274 +1275 if properties: +1276 return self.expression(exp.Properties, expressions=properties) +1277 +1278 return None +1279 +1280 def _parse_fallback(self, no=False) -> exp.Expression: +1281 self._match_text_seq("FALLBACK") +1282 return self.expression( +1283 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1284 ) +1285 +1286 def _parse_volatile_property(self) -> exp.Expression: +1287 if self._index >= 2: +1288 pre_volatile_token = self._tokens[self._index - 2] +1289 else: +1290 pre_volatile_token = None 1291 -1292 return self.expression(exp.StabilityProperty, this=exp.Literal.string("VOLATILE")) -1293 -1294 def _parse_with_property( -1295 self, -1296 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: -1297 self._match(TokenType.WITH) -1298 if self._match(TokenType.L_PAREN, advance=False): -1299 return self._parse_wrapped_csv(self._parse_property) +1292 if pre_volatile_token and pre_volatile_token.token_type in ( +1293 TokenType.CREATE, +1294 TokenType.REPLACE, +1295 TokenType.UNIQUE, +1296 ): +1297 return exp.VolatileProperty() +1298 +1299 return self.expression(exp.StabilityProperty, this=exp.Literal.string("VOLATILE")) 1300 -1301 if self._match_text_seq("JOURNAL"): -1302 return self._parse_withjournaltable() -1303 -1304 if self._match_text_seq("DATA"): -1305 return self._parse_withdata(no=False) -1306 elif self._match_text_seq("NO", "DATA"): -1307 return self._parse_withdata(no=True) -1308 -1309 if not self._next: -1310 return None -1311 -1312 return self._parse_withisolatedloading() -1313 -1314 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html -1315 def _parse_definer(self) -> t.Optional[exp.Expression]: -1316 self._match(TokenType.EQ) -1317 -1318 user = self._parse_id_var() -1319 self._match(TokenType.PARAMETER) -1320 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) -1321 -1322 if not user or not host: -1323 return None +1301 def _parse_with_property( +1302 self, +1303 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1304 self._match(TokenType.WITH) +1305 if self._match(TokenType.L_PAREN, advance=False): +1306 return self._parse_wrapped_csv(self._parse_property) +1307 +1308 if self._match_text_seq("JOURNAL"): +1309 return self._parse_withjournaltable() +1310 +1311 if self._match_text_seq("DATA"): +1312 return self._parse_withdata(no=False) +1313 elif self._match_text_seq("NO", "DATA"): +1314 return self._parse_withdata(no=True) +1315 +1316 if not self._next: +1317 return None +1318 +1319 return self._parse_withisolatedloading() +1320 +1321 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1322 def _parse_definer(self) -> t.Optional[exp.Expression]: +1323 self._match(TokenType.EQ) 1324 -1325 return exp.DefinerProperty(this=f"{user}@{host}") -1326 -1327 def _parse_withjournaltable(self) -> exp.Expression: -1328 self._match(TokenType.TABLE) -1329 self._match(TokenType.EQ) -1330 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1325 user = self._parse_id_var() +1326 self._match(TokenType.PARAMETER) +1327 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1328 +1329 if not user or not host: +1330 return None 1331 -1332 def _parse_log(self, no=False) -> exp.Expression: -1333 self._match_text_seq("LOG") -1334 return self.expression(exp.LogProperty, no=no) -1335 -1336 def _parse_journal(self, no=False, dual=False) -> exp.Expression: -1337 before = self._match_text_seq("BEFORE") -1338 self._match_text_seq("JOURNAL") -1339 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) -1340 -1341 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: -1342 self._match_text_seq("NOT") -1343 self._match_text_seq("LOCAL") -1344 self._match_text_seq("AFTER", "JOURNAL") -1345 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) -1346 -1347 def _parse_checksum(self) -> exp.Expression: -1348 self._match_text_seq("CHECKSUM") -1349 self._match(TokenType.EQ) -1350 -1351 on = None -1352 if self._match(TokenType.ON): -1353 on = True -1354 elif self._match_text_seq("OFF"): -1355 on = False -1356 default = self._match(TokenType.DEFAULT) +1332 return exp.DefinerProperty(this=f"{user}@{host}") +1333 +1334 def _parse_withjournaltable(self) -> exp.Expression: +1335 self._match(TokenType.TABLE) +1336 self._match(TokenType.EQ) +1337 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1338 +1339 def _parse_log(self, no=False) -> exp.Expression: +1340 self._match_text_seq("LOG") +1341 return self.expression(exp.LogProperty, no=no) +1342 +1343 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1344 before = self._match_text_seq("BEFORE") +1345 self._match_text_seq("JOURNAL") +1346 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1347 +1348 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1349 self._match_text_seq("NOT") +1350 self._match_text_seq("LOCAL") +1351 self._match_text_seq("AFTER", "JOURNAL") +1352 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1353 +1354 def _parse_checksum(self) -> exp.Expression: +1355 self._match_text_seq("CHECKSUM") +1356 self._match(TokenType.EQ) 1357 -1358 return self.expression( -1359 exp.ChecksumProperty, -1360 on=on, -1361 default=default, -1362 ) -1363 -1364 def _parse_freespace(self) -> exp.Expression: -1365 self._match_text_seq("FREESPACE") -1366 self._match(TokenType.EQ) -1367 return self.expression( -1368 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1358 on = None +1359 if self._match(TokenType.ON): +1360 on = True +1361 elif self._match_text_seq("OFF"): +1362 on = False +1363 default = self._match(TokenType.DEFAULT) +1364 +1365 return self.expression( +1366 exp.ChecksumProperty, +1367 on=on, +1368 default=default, 1369 ) 1370 -1371 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: -1372 self._match_text_seq("MERGEBLOCKRATIO") -1373 if self._match(TokenType.EQ): -1374 return self.expression( -1375 exp.MergeBlockRatioProperty, -1376 this=self._parse_number(), -1377 percent=self._match(TokenType.PERCENT), -1378 ) -1379 else: -1380 return self.expression( -1381 exp.MergeBlockRatioProperty, -1382 no=no, -1383 default=default, -1384 ) -1385 -1386 def _parse_datablocksize(self, default=None) -> exp.Expression: -1387 if default: -1388 self._match_text_seq("DATABLOCKSIZE") -1389 return self.expression(exp.DataBlocksizeProperty, default=True) -1390 elif self._match_texts(("MIN", "MINIMUM")): -1391 self._match_text_seq("DATABLOCKSIZE") -1392 return self.expression(exp.DataBlocksizeProperty, min=True) -1393 elif self._match_texts(("MAX", "MAXIMUM")): -1394 self._match_text_seq("DATABLOCKSIZE") -1395 return self.expression(exp.DataBlocksizeProperty, min=False) -1396 -1397 self._match_text_seq("DATABLOCKSIZE") -1398 self._match(TokenType.EQ) -1399 size = self._parse_number() -1400 units = None -1401 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): -1402 units = self._prev.text -1403 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) -1404 -1405 def _parse_blockcompression(self) -> exp.Expression: -1406 self._match_text_seq("BLOCKCOMPRESSION") -1407 self._match(TokenType.EQ) -1408 always = self._match_text_seq("ALWAYS") -1409 manual = self._match_text_seq("MANUAL") -1410 never = self._match_text_seq("NEVER") -1411 default = self._match_text_seq("DEFAULT") -1412 autotemp = None -1413 if self._match_text_seq("AUTOTEMP"): -1414 autotemp = self._parse_schema() -1415 -1416 return self.expression( -1417 exp.BlockCompressionProperty, -1418 always=always, -1419 manual=manual, -1420 never=never, -1421 default=default, -1422 autotemp=autotemp, -1423 ) -1424 -1425 def _parse_withisolatedloading(self) -> exp.Expression: -1426 no = self._match_text_seq("NO") -1427 concurrent = self._match_text_seq("CONCURRENT") -1428 self._match_text_seq("ISOLATED", "LOADING") -1429 for_all = self._match_text_seq("FOR", "ALL") -1430 for_insert = self._match_text_seq("FOR", "INSERT") -1431 for_none = self._match_text_seq("FOR", "NONE") -1432 return self.expression( -1433 exp.IsolatedLoadingProperty, -1434 no=no, -1435 concurrent=concurrent, -1436 for_all=for_all, -1437 for_insert=for_insert, -1438 for_none=for_none, -1439 ) -1440 -1441 def _parse_locking(self) -> exp.Expression: -1442 if self._match(TokenType.TABLE): -1443 kind = "TABLE" -1444 elif self._match(TokenType.VIEW): -1445 kind = "VIEW" -1446 elif self._match(TokenType.ROW): -1447 kind = "ROW" -1448 elif self._match_text_seq("DATABASE"): -1449 kind = "DATABASE" -1450 else: -1451 kind = None -1452 -1453 if kind in ("DATABASE", "TABLE", "VIEW"): -1454 this = self._parse_table_parts() -1455 else: -1456 this = None -1457 -1458 if self._match(TokenType.FOR): -1459 for_or_in = "FOR" -1460 elif self._match(TokenType.IN): -1461 for_or_in = "IN" +1371 def _parse_freespace(self) -> exp.Expression: +1372 self._match_text_seq("FREESPACE") +1373 self._match(TokenType.EQ) +1374 return self.expression( +1375 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1376 ) +1377 +1378 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1379 self._match_text_seq("MERGEBLOCKRATIO") +1380 if self._match(TokenType.EQ): +1381 return self.expression( +1382 exp.MergeBlockRatioProperty, +1383 this=self._parse_number(), +1384 percent=self._match(TokenType.PERCENT), +1385 ) +1386 else: +1387 return self.expression( +1388 exp.MergeBlockRatioProperty, +1389 no=no, +1390 default=default, +1391 ) +1392 +1393 def _parse_datablocksize(self, default=None) -> exp.Expression: +1394 if default: +1395 self._match_text_seq("DATABLOCKSIZE") +1396 return self.expression(exp.DataBlocksizeProperty, default=True) +1397 elif self._match_texts(("MIN", "MINIMUM")): +1398 self._match_text_seq("DATABLOCKSIZE") +1399 return self.expression(exp.DataBlocksizeProperty, min=True) +1400 elif self._match_texts(("MAX", "MAXIMUM")): +1401 self._match_text_seq("DATABLOCKSIZE") +1402 return self.expression(exp.DataBlocksizeProperty, min=False) +1403 +1404 self._match_text_seq("DATABLOCKSIZE") +1405 self._match(TokenType.EQ) +1406 size = self._parse_number() +1407 units = None +1408 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1409 units = self._prev.text +1410 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1411 +1412 def _parse_blockcompression(self) -> exp.Expression: +1413 self._match_text_seq("BLOCKCOMPRESSION") +1414 self._match(TokenType.EQ) +1415 always = self._match_text_seq("ALWAYS") +1416 manual = self._match_text_seq("MANUAL") +1417 never = self._match_text_seq("NEVER") +1418 default = self._match_text_seq("DEFAULT") +1419 autotemp = None +1420 if self._match_text_seq("AUTOTEMP"): +1421 autotemp = self._parse_schema() +1422 +1423 return self.expression( +1424 exp.BlockCompressionProperty, +1425 always=always, +1426 manual=manual, +1427 never=never, +1428 default=default, +1429 autotemp=autotemp, +1430 ) +1431 +1432 def _parse_withisolatedloading(self) -> exp.Expression: +1433 no = self._match_text_seq("NO") +1434 concurrent = self._match_text_seq("CONCURRENT") +1435 self._match_text_seq("ISOLATED", "LOADING") +1436 for_all = self._match_text_seq("FOR", "ALL") +1437 for_insert = self._match_text_seq("FOR", "INSERT") +1438 for_none = self._match_text_seq("FOR", "NONE") +1439 return self.expression( +1440 exp.IsolatedLoadingProperty, +1441 no=no, +1442 concurrent=concurrent, +1443 for_all=for_all, +1444 for_insert=for_insert, +1445 for_none=for_none, +1446 ) +1447 +1448 def _parse_locking(self) -> exp.Expression: +1449 if self._match(TokenType.TABLE): +1450 kind = "TABLE" +1451 elif self._match(TokenType.VIEW): +1452 kind = "VIEW" +1453 elif self._match(TokenType.ROW): +1454 kind = "ROW" +1455 elif self._match_text_seq("DATABASE"): +1456 kind = "DATABASE" +1457 else: +1458 kind = None +1459 +1460 if kind in ("DATABASE", "TABLE", "VIEW"): +1461 this = self._parse_table_parts() 1462 else: -1463 for_or_in = None +1463 this = None 1464 -1465 if self._match_text_seq("ACCESS"): -1466 lock_type = "ACCESS" -1467 elif self._match_texts(("EXCL", "EXCLUSIVE")): -1468 lock_type = "EXCLUSIVE" -1469 elif self._match_text_seq("SHARE"): -1470 lock_type = "SHARE" -1471 elif self._match_text_seq("READ"): -1472 lock_type = "READ" -1473 elif self._match_text_seq("WRITE"): -1474 lock_type = "WRITE" -1475 elif self._match_text_seq("CHECKSUM"): -1476 lock_type = "CHECKSUM" -1477 else: -1478 lock_type = None -1479 -1480 override = self._match_text_seq("OVERRIDE") -1481 -1482 return self.expression( -1483 exp.LockingProperty, -1484 this=this, -1485 kind=kind, -1486 for_or_in=for_or_in, -1487 lock_type=lock_type, -1488 override=override, -1489 ) -1490 -1491 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: -1492 if self._match(TokenType.PARTITION_BY): -1493 return self._parse_csv(self._parse_conjunction) -1494 return [] -1495 -1496 def _parse_partitioned_by(self) -> exp.Expression: -1497 self._match(TokenType.EQ) -1498 return self.expression( -1499 exp.PartitionedByProperty, -1500 this=self._parse_schema() or self._parse_bracket(self._parse_field()), -1501 ) +1465 if self._match(TokenType.FOR): +1466 for_or_in = "FOR" +1467 elif self._match(TokenType.IN): +1468 for_or_in = "IN" +1469 else: +1470 for_or_in = None +1471 +1472 if self._match_text_seq("ACCESS"): +1473 lock_type = "ACCESS" +1474 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1475 lock_type = "EXCLUSIVE" +1476 elif self._match_text_seq("SHARE"): +1477 lock_type = "SHARE" +1478 elif self._match_text_seq("READ"): +1479 lock_type = "READ" +1480 elif self._match_text_seq("WRITE"): +1481 lock_type = "WRITE" +1482 elif self._match_text_seq("CHECKSUM"): +1483 lock_type = "CHECKSUM" +1484 else: +1485 lock_type = None +1486 +1487 override = self._match_text_seq("OVERRIDE") +1488 +1489 return self.expression( +1490 exp.LockingProperty, +1491 this=this, +1492 kind=kind, +1493 for_or_in=for_or_in, +1494 lock_type=lock_type, +1495 override=override, +1496 ) +1497 +1498 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1499 if self._match(TokenType.PARTITION_BY): +1500 return self._parse_csv(self._parse_conjunction) +1501 return [] 1502 -1503 def _parse_withdata(self, no=False) -> exp.Expression: -1504 if self._match_text_seq("AND", "STATISTICS"): -1505 statistics = True -1506 elif self._match_text_seq("AND", "NO", "STATISTICS"): -1507 statistics = False -1508 else: -1509 statistics = None -1510 -1511 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) -1512 -1513 def _parse_noprimaryindex(self) -> exp.Expression: -1514 self._match_text_seq("PRIMARY", "INDEX") -1515 return exp.NoPrimaryIndexProperty() -1516 -1517 def _parse_oncommit(self) -> exp.Expression: -1518 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") -1519 return exp.OnCommitProperty() -1520 -1521 def _parse_distkey(self) -> exp.Expression: -1522 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) +1503 def _parse_partitioned_by(self) -> exp.Expression: +1504 self._match(TokenType.EQ) +1505 return self.expression( +1506 exp.PartitionedByProperty, +1507 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1508 ) +1509 +1510 def _parse_withdata(self, no=False) -> exp.Expression: +1511 if self._match_text_seq("AND", "STATISTICS"): +1512 statistics = True +1513 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1514 statistics = False +1515 else: +1516 statistics = None +1517 +1518 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1519 +1520 def _parse_noprimaryindex(self) -> exp.Expression: +1521 self._match_text_seq("PRIMARY", "INDEX") +1522 return exp.NoPrimaryIndexProperty() 1523 -1524 def _parse_create_like(self) -> t.Optional[exp.Expression]: -1525 table = self._parse_table(schema=True) -1526 options = [] -1527 while self._match_texts(("INCLUDING", "EXCLUDING")): -1528 this = self._prev.text.upper() -1529 id_var = self._parse_id_var() +1524 def _parse_oncommit(self) -> exp.Expression: +1525 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1526 return exp.OnCommitProperty() +1527 +1528 def _parse_distkey(self) -> exp.Expression: +1529 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) 1530 -1531 if not id_var: -1532 return None -1533 -1534 options.append( -1535 self.expression( -1536 exp.Property, -1537 this=this, -1538 value=exp.Var(this=id_var.this.upper()), -1539 ) -1540 ) -1541 return self.expression(exp.LikeProperty, this=table, expressions=options) -1542 -1543 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: -1544 return self.expression( -1545 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound -1546 ) -1547 -1548 def _parse_character_set(self, default: bool = False) -> exp.Expression: -1549 self._match(TokenType.EQ) -1550 return self.expression( -1551 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default -1552 ) -1553 -1554 def _parse_returns(self) -> exp.Expression: -1555 value: t.Optional[exp.Expression] -1556 is_table = self._match(TokenType.TABLE) -1557 -1558 if is_table: -1559 if self._match(TokenType.LT): -1560 value = self.expression( -1561 exp.Schema, -1562 this="TABLE", -1563 expressions=self._parse_csv(self._parse_struct_kwargs), -1564 ) -1565 if not self._match(TokenType.GT): -1566 self.raise_error("Expecting >") -1567 else: -1568 value = self._parse_schema(exp.Var(this="TABLE")) -1569 else: -1570 value = self._parse_types() -1571 -1572 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) -1573 -1574 def _parse_temporary(self, global_=False) -> exp.Expression: -1575 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" -1576 return self.expression(exp.TemporaryProperty, global_=global_) -1577 -1578 def _parse_describe(self) -> exp.Expression: -1579 kind = self._match_set(self.CREATABLES) and self._prev.text -1580 this = self._parse_table() -1581 -1582 return self.expression(exp.Describe, this=this, kind=kind) -1583 -1584 def _parse_insert(self) -> exp.Expression: -1585 overwrite = self._match(TokenType.OVERWRITE) -1586 local = self._match(TokenType.LOCAL) -1587 alternative = None +1531 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1532 table = self._parse_table(schema=True) +1533 options = [] +1534 while self._match_texts(("INCLUDING", "EXCLUDING")): +1535 this = self._prev.text.upper() +1536 id_var = self._parse_id_var() +1537 +1538 if not id_var: +1539 return None +1540 +1541 options.append( +1542 self.expression( +1543 exp.Property, +1544 this=this, +1545 value=exp.Var(this=id_var.this.upper()), +1546 ) +1547 ) +1548 return self.expression(exp.LikeProperty, this=table, expressions=options) +1549 +1550 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1551 return self.expression( +1552 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1553 ) +1554 +1555 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1556 self._match(TokenType.EQ) +1557 return self.expression( +1558 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1559 ) +1560 +1561 def _parse_returns(self) -> exp.Expression: +1562 value: t.Optional[exp.Expression] +1563 is_table = self._match(TokenType.TABLE) +1564 +1565 if is_table: +1566 if self._match(TokenType.LT): +1567 value = self.expression( +1568 exp.Schema, +1569 this="TABLE", +1570 expressions=self._parse_csv(self._parse_struct_kwargs), +1571 ) +1572 if not self._match(TokenType.GT): +1573 self.raise_error("Expecting >") +1574 else: +1575 value = self._parse_schema(exp.Var(this="TABLE")) +1576 else: +1577 value = self._parse_types() +1578 +1579 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1580 +1581 def _parse_temporary(self, global_=False) -> exp.Expression: +1582 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1583 return self.expression(exp.TemporaryProperty, global_=global_) +1584 +1585 def _parse_describe(self) -> exp.Expression: +1586 kind = self._match_set(self.CREATABLES) and self._prev.text +1587 this = self._parse_table() 1588 -1589 if self._match_text_seq("DIRECTORY"): -1590 this: t.Optional[exp.Expression] = self.expression( -1591 exp.Directory, -1592 this=self._parse_var_or_string(), -1593 local=local, -1594 row_format=self._parse_row_format(match_row=True), -1595 ) -1596 else: -1597 if self._match(TokenType.OR): -1598 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text -1599 -1600 self._match(TokenType.INTO) -1601 self._match(TokenType.TABLE) -1602 this = self._parse_table(schema=True) -1603 -1604 return self.expression( -1605 exp.Insert, -1606 this=this, -1607 exists=self._parse_exists(), -1608 partition=self._parse_partition(), -1609 expression=self._parse_ddl_select(), -1610 conflict=self._parse_on_conflict(), -1611 returning=self._parse_returning(), -1612 overwrite=overwrite, -1613 alternative=alternative, -1614 ) -1615 -1616 def _parse_on_conflict(self) -> t.Optional[exp.Expression]: -1617 conflict = self._match_text_seq("ON", "CONFLICT") -1618 duplicate = self._match_text_seq("ON", "DUPLICATE", "KEY") -1619 -1620 if not (conflict or duplicate): -1621 return None +1589 return self.expression(exp.Describe, this=this, kind=kind) +1590 +1591 def _parse_insert(self) -> exp.Expression: +1592 overwrite = self._match(TokenType.OVERWRITE) +1593 local = self._match(TokenType.LOCAL) +1594 alternative = None +1595 +1596 if self._match_text_seq("DIRECTORY"): +1597 this: t.Optional[exp.Expression] = self.expression( +1598 exp.Directory, +1599 this=self._parse_var_or_string(), +1600 local=local, +1601 row_format=self._parse_row_format(match_row=True), +1602 ) +1603 else: +1604 if self._match(TokenType.OR): +1605 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1606 +1607 self._match(TokenType.INTO) +1608 self._match(TokenType.TABLE) +1609 this = self._parse_table(schema=True) +1610 +1611 return self.expression( +1612 exp.Insert, +1613 this=this, +1614 exists=self._parse_exists(), +1615 partition=self._parse_partition(), +1616 expression=self._parse_ddl_select(), +1617 conflict=self._parse_on_conflict(), +1618 returning=self._parse_returning(), +1619 overwrite=overwrite, +1620 alternative=alternative, +1621 ) 1622 -1623 nothing = None -1624 expressions = None -1625 key = None -1626 constraint = None -1627 -1628 if conflict: -1629 if self._match_text_seq("ON", "CONSTRAINT"): -1630 constraint = self._parse_id_var() -1631 else: -1632 key = self._parse_csv(self._parse_value) -1633 -1634 self._match_text_seq("DO") -1635 if self._match_text_seq("NOTHING"): -1636 nothing = True -1637 else: -1638 self._match(TokenType.UPDATE) -1639 expressions = self._match(TokenType.SET) and self._parse_csv(self._parse_equality) +1623 def _parse_on_conflict(self) -> t.Optional[exp.Expression]: +1624 conflict = self._match_text_seq("ON", "CONFLICT") +1625 duplicate = self._match_text_seq("ON", "DUPLICATE", "KEY") +1626 +1627 if not (conflict or duplicate): +1628 return None +1629 +1630 nothing = None +1631 expressions = None +1632 key = None +1633 constraint = None +1634 +1635 if conflict: +1636 if self._match_text_seq("ON", "CONSTRAINT"): +1637 constraint = self._parse_id_var() +1638 else: +1639 key = self._parse_csv(self._parse_value) 1640 -1641 return self.expression( -1642 exp.OnConflict, -1643 duplicate=duplicate, -1644 expressions=expressions, -1645 nothing=nothing, -1646 key=key, -1647 constraint=constraint, -1648 ) -1649 -1650 def _parse_returning(self) -> t.Optional[exp.Expression]: -1651 if not self._match(TokenType.RETURNING): -1652 return None -1653 -1654 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) -1655 -1656 def _parse_row(self) -> t.Optional[exp.Expression]: -1657 if not self._match(TokenType.FORMAT): -1658 return None -1659 return self._parse_row_format() +1641 self._match_text_seq("DO") +1642 if self._match_text_seq("NOTHING"): +1643 nothing = True +1644 else: +1645 self._match(TokenType.UPDATE) +1646 expressions = self._match(TokenType.SET) and self._parse_csv(self._parse_equality) +1647 +1648 return self.expression( +1649 exp.OnConflict, +1650 duplicate=duplicate, +1651 expressions=expressions, +1652 nothing=nothing, +1653 key=key, +1654 constraint=constraint, +1655 ) +1656 +1657 def _parse_returning(self) -> t.Optional[exp.Expression]: +1658 if not self._match(TokenType.RETURNING): +1659 return None 1660 -1661 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: -1662 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): -1663 return None -1664 -1665 if self._match_text_seq("SERDE"): -1666 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1661 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) +1662 +1663 def _parse_row(self) -> t.Optional[exp.Expression]: +1664 if not self._match(TokenType.FORMAT): +1665 return None +1666 return self._parse_row_format() 1667 -1668 self._match_text_seq("DELIMITED") -1669 -1670 kwargs = {} +1668 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1669 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1670 return None 1671 -1672 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): -1673 kwargs["fields"] = self._parse_string() -1674 if self._match_text_seq("ESCAPED", "BY"): -1675 kwargs["escaped"] = self._parse_string() -1676 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): -1677 kwargs["collection_items"] = self._parse_string() -1678 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): -1679 kwargs["map_keys"] = self._parse_string() -1680 if self._match_text_seq("LINES", "TERMINATED", "BY"): -1681 kwargs["lines"] = self._parse_string() -1682 if self._match_text_seq("NULL", "DEFINED", "AS"): -1683 kwargs["null"] = self._parse_string() -1684 -1685 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore -1686 -1687 def _parse_load_data(self) -> exp.Expression: -1688 local = self._match(TokenType.LOCAL) -1689 self._match_text_seq("INPATH") -1690 inpath = self._parse_string() -1691 overwrite = self._match(TokenType.OVERWRITE) -1692 self._match_pair(TokenType.INTO, TokenType.TABLE) +1672 if self._match_text_seq("SERDE"): +1673 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1674 +1675 self._match_text_seq("DELIMITED") +1676 +1677 kwargs = {} +1678 +1679 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1680 kwargs["fields"] = self._parse_string() +1681 if self._match_text_seq("ESCAPED", "BY"): +1682 kwargs["escaped"] = self._parse_string() +1683 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1684 kwargs["collection_items"] = self._parse_string() +1685 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1686 kwargs["map_keys"] = self._parse_string() +1687 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1688 kwargs["lines"] = self._parse_string() +1689 if self._match_text_seq("NULL", "DEFINED", "AS"): +1690 kwargs["null"] = self._parse_string() +1691 +1692 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore 1693 -1694 return self.expression( -1695 exp.LoadData, -1696 this=self._parse_table(schema=True), -1697 local=local, -1698 overwrite=overwrite, -1699 inpath=inpath, -1700 partition=self._parse_partition(), -1701 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), -1702 serde=self._match_text_seq("SERDE") and self._parse_string(), -1703 ) -1704 -1705 def _parse_delete(self) -> exp.Expression: -1706 self._match(TokenType.FROM) -1707 -1708 return self.expression( -1709 exp.Delete, -1710 this=self._parse_table(), -1711 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), -1712 where=self._parse_where(), -1713 returning=self._parse_returning(), -1714 ) -1715 -1716 def _parse_update(self) -> exp.Expression: -1717 return self.expression( -1718 exp.Update, -1719 **{ # type: ignore -1720 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), -1721 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), -1722 "from": self._parse_from(), -1723 "where": self._parse_where(), -1724 "returning": self._parse_returning(), -1725 }, -1726 ) -1727 -1728 def _parse_uncache(self) -> exp.Expression: -1729 if not self._match(TokenType.TABLE): -1730 self.raise_error("Expecting TABLE after UNCACHE") -1731 -1732 return self.expression( -1733 exp.Uncache, -1734 exists=self._parse_exists(), -1735 this=self._parse_table(schema=True), -1736 ) -1737 -1738 def _parse_cache(self) -> exp.Expression: -1739 lazy = self._match(TokenType.LAZY) -1740 self._match(TokenType.TABLE) -1741 table = self._parse_table(schema=True) -1742 options = [] -1743 -1744 if self._match(TokenType.OPTIONS): -1745 self._match_l_paren() -1746 k = self._parse_string() -1747 self._match(TokenType.EQ) -1748 v = self._parse_string() -1749 options = [k, v] -1750 self._match_r_paren() -1751 -1752 self._match(TokenType.ALIAS) -1753 return self.expression( -1754 exp.Cache, -1755 this=table, -1756 lazy=lazy, -1757 options=options, -1758 expression=self._parse_select(nested=True), -1759 ) -1760 -1761 def _parse_partition(self) -> t.Optional[exp.Expression]: -1762 if not self._match(TokenType.PARTITION): -1763 return None -1764 -1765 return self.expression( -1766 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) -1767 ) -1768 -1769 def _parse_value(self) -> exp.Expression: -1770 if self._match(TokenType.L_PAREN): -1771 expressions = self._parse_csv(self._parse_conjunction) -1772 self._match_r_paren() -1773 return self.expression(exp.Tuple, expressions=expressions) -1774 -1775 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. -1776 # Source: https://prestodb.io/docs/current/sql/values.html -1777 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) -1778 -1779 def _parse_select( -1780 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True -1781 ) -> t.Optional[exp.Expression]: -1782 cte = self._parse_with() -1783 if cte: -1784 this = self._parse_statement() +1694 def _parse_load_data(self) -> exp.Expression: +1695 local = self._match(TokenType.LOCAL) +1696 self._match_text_seq("INPATH") +1697 inpath = self._parse_string() +1698 overwrite = self._match(TokenType.OVERWRITE) +1699 self._match_pair(TokenType.INTO, TokenType.TABLE) +1700 +1701 return self.expression( +1702 exp.LoadData, +1703 this=self._parse_table(schema=True), +1704 local=local, +1705 overwrite=overwrite, +1706 inpath=inpath, +1707 partition=self._parse_partition(), +1708 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1709 serde=self._match_text_seq("SERDE") and self._parse_string(), +1710 ) +1711 +1712 def _parse_delete(self) -> exp.Expression: +1713 self._match(TokenType.FROM) +1714 +1715 return self.expression( +1716 exp.Delete, +1717 this=self._parse_table(), +1718 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1719 where=self._parse_where(), +1720 returning=self._parse_returning(), +1721 ) +1722 +1723 def _parse_update(self) -> exp.Expression: +1724 return self.expression( +1725 exp.Update, +1726 **{ # type: ignore +1727 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1728 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1729 "from": self._parse_from(), +1730 "where": self._parse_where(), +1731 "returning": self._parse_returning(), +1732 }, +1733 ) +1734 +1735 def _parse_uncache(self) -> exp.Expression: +1736 if not self._match(TokenType.TABLE): +1737 self.raise_error("Expecting TABLE after UNCACHE") +1738 +1739 return self.expression( +1740 exp.Uncache, +1741 exists=self._parse_exists(), +1742 this=self._parse_table(schema=True), +1743 ) +1744 +1745 def _parse_cache(self) -> exp.Expression: +1746 lazy = self._match(TokenType.LAZY) +1747 self._match(TokenType.TABLE) +1748 table = self._parse_table(schema=True) +1749 options = [] +1750 +1751 if self._match(TokenType.OPTIONS): +1752 self._match_l_paren() +1753 k = self._parse_string() +1754 self._match(TokenType.EQ) +1755 v = self._parse_string() +1756 options = [k, v] +1757 self._match_r_paren() +1758 +1759 self._match(TokenType.ALIAS) +1760 return self.expression( +1761 exp.Cache, +1762 this=table, +1763 lazy=lazy, +1764 options=options, +1765 expression=self._parse_select(nested=True), +1766 ) +1767 +1768 def _parse_partition(self) -> t.Optional[exp.Expression]: +1769 if not self._match(TokenType.PARTITION): +1770 return None +1771 +1772 return self.expression( +1773 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1774 ) +1775 +1776 def _parse_value(self) -> exp.Expression: +1777 if self._match(TokenType.L_PAREN): +1778 expressions = self._parse_csv(self._parse_conjunction) +1779 self._match_r_paren() +1780 return self.expression(exp.Tuple, expressions=expressions) +1781 +1782 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1783 # Source: https://prestodb.io/docs/current/sql/values.html +1784 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) 1785 -1786 if not this: -1787 self.raise_error("Failed to parse any statement following CTE") -1788 return cte -1789 -1790 if "with" in this.arg_types: -1791 this.set("with", cte) -1792 else: -1793 self.raise_error(f"{this.key} does not support CTE") -1794 this = cte -1795 elif self._match(TokenType.SELECT): -1796 comments = self._prev_comments -1797 -1798 kind = ( -1799 self._match(TokenType.ALIAS) -1800 and self._match_texts(("STRUCT", "VALUE")) -1801 and self._prev.text -1802 ) -1803 hint = self._parse_hint() -1804 all_ = self._match(TokenType.ALL) -1805 distinct = self._match(TokenType.DISTINCT) -1806 -1807 if distinct: -1808 distinct = self.expression( -1809 exp.Distinct, -1810 on=self._parse_value() if self._match(TokenType.ON) else None, -1811 ) -1812 -1813 if all_ and distinct: -1814 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") -1815 -1816 limit = self._parse_limit(top=True) -1817 expressions = self._parse_csv(self._parse_expression) -1818 -1819 this = self.expression( -1820 exp.Select, -1821 kind=kind, -1822 hint=hint, -1823 distinct=distinct, -1824 expressions=expressions, -1825 limit=limit, -1826 ) -1827 this.comments = comments -1828 -1829 into = self._parse_into() -1830 if into: -1831 this.set("into", into) -1832 -1833 from_ = self._parse_from() -1834 if from_: -1835 this.set("from", from_) -1836 -1837 self._parse_query_modifiers(this) -1838 elif (table or nested) and self._match(TokenType.L_PAREN): -1839 this = self._parse_table() if table else self._parse_select(nested=True) -1840 self._parse_query_modifiers(this) -1841 this = self._parse_set_operations(this) -1842 self._match_r_paren() +1786 def _parse_select( +1787 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1788 ) -> t.Optional[exp.Expression]: +1789 cte = self._parse_with() +1790 if cte: +1791 this = self._parse_statement() +1792 +1793 if not this: +1794 self.raise_error("Failed to parse any statement following CTE") +1795 return cte +1796 +1797 if "with" in this.arg_types: +1798 this.set("with", cte) +1799 else: +1800 self.raise_error(f"{this.key} does not support CTE") +1801 this = cte +1802 elif self._match(TokenType.SELECT): +1803 comments = self._prev_comments +1804 +1805 kind = ( +1806 self._match(TokenType.ALIAS) +1807 and self._match_texts(("STRUCT", "VALUE")) +1808 and self._prev.text +1809 ) +1810 hint = self._parse_hint() +1811 all_ = self._match(TokenType.ALL) +1812 distinct = self._match(TokenType.DISTINCT) +1813 +1814 if distinct: +1815 distinct = self.expression( +1816 exp.Distinct, +1817 on=self._parse_value() if self._match(TokenType.ON) else None, +1818 ) +1819 +1820 if all_ and distinct: +1821 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") +1822 +1823 limit = self._parse_limit(top=True) +1824 expressions = self._parse_csv(self._parse_expression) +1825 +1826 this = self.expression( +1827 exp.Select, +1828 kind=kind, +1829 hint=hint, +1830 distinct=distinct, +1831 expressions=expressions, +1832 limit=limit, +1833 ) +1834 this.comments = comments +1835 +1836 into = self._parse_into() +1837 if into: +1838 this.set("into", into) +1839 +1840 from_ = self._parse_from() +1841 if from_: +1842 this.set("from", from_) 1843 -1844 # early return so that subquery unions aren't parsed again -1845 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 -1846 # Union ALL should be a property of the top select node, not the subquery -1847 return self._parse_subquery(this, parse_alias=parse_subquery_alias) -1848 elif self._match(TokenType.VALUES): -1849 this = self.expression( -1850 exp.Values, -1851 expressions=self._parse_csv(self._parse_value), -1852 alias=self._parse_table_alias(), -1853 ) -1854 else: -1855 this = None -1856 -1857 return self._parse_set_operations(this) -1858 -1859 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: -1860 if not skip_with_token and not self._match(TokenType.WITH): -1861 return None -1862 -1863 comments = self._prev_comments -1864 recursive = self._match(TokenType.RECURSIVE) +1844 self._parse_query_modifiers(this) +1845 elif (table or nested) and self._match(TokenType.L_PAREN): +1846 this = self._parse_table() if table else self._parse_select(nested=True) +1847 self._parse_query_modifiers(this) +1848 this = self._parse_set_operations(this) +1849 self._match_r_paren() +1850 +1851 # early return so that subquery unions aren't parsed again +1852 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1853 # Union ALL should be a property of the top select node, not the subquery +1854 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1855 elif self._match(TokenType.VALUES): +1856 this = self.expression( +1857 exp.Values, +1858 expressions=self._parse_csv(self._parse_value), +1859 alias=self._parse_table_alias(), +1860 ) +1861 else: +1862 this = None +1863 +1864 return self._parse_set_operations(this) 1865 -1866 expressions = [] -1867 while True: -1868 expressions.append(self._parse_cte()) +1866 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1867 if not skip_with_token and not self._match(TokenType.WITH): +1868 return None 1869 -1870 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): -1871 break -1872 else: -1873 self._match(TokenType.WITH) -1874 -1875 return self.expression( -1876 exp.With, comments=comments, expressions=expressions, recursive=recursive -1877 ) -1878 -1879 def _parse_cte(self) -> exp.Expression: -1880 alias = self._parse_table_alias() -1881 if not alias or not alias.this: -1882 self.raise_error("Expected CTE to have alias") -1883 -1884 self._match(TokenType.ALIAS) +1870 comments = self._prev_comments +1871 recursive = self._match(TokenType.RECURSIVE) +1872 +1873 expressions = [] +1874 while True: +1875 expressions.append(self._parse_cte()) +1876 +1877 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1878 break +1879 else: +1880 self._match(TokenType.WITH) +1881 +1882 return self.expression( +1883 exp.With, comments=comments, expressions=expressions, recursive=recursive +1884 ) 1885 -1886 return self.expression( -1887 exp.CTE, -1888 this=self._parse_wrapped(self._parse_statement), -1889 alias=alias, -1890 ) -1891 -1892 def _parse_table_alias( -1893 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None -1894 ) -> t.Optional[exp.Expression]: -1895 any_token = self._match(TokenType.ALIAS) -1896 alias = ( -1897 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -1898 or self._parse_string_as_identifier() -1899 ) -1900 -1901 index = self._index -1902 if self._match(TokenType.L_PAREN): -1903 columns = self._parse_csv(self._parse_function_parameter) -1904 self._match_r_paren() if columns else self._retreat(index) -1905 else: -1906 columns = None +1886 def _parse_cte(self) -> exp.Expression: +1887 alias = self._parse_table_alias() +1888 if not alias or not alias.this: +1889 self.raise_error("Expected CTE to have alias") +1890 +1891 self._match(TokenType.ALIAS) +1892 +1893 return self.expression( +1894 exp.CTE, +1895 this=self._parse_wrapped(self._parse_statement), +1896 alias=alias, +1897 ) +1898 +1899 def _parse_table_alias( +1900 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1901 ) -> t.Optional[exp.Expression]: +1902 any_token = self._match(TokenType.ALIAS) +1903 alias = ( +1904 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +1905 or self._parse_string_as_identifier() +1906 ) 1907 -1908 if not alias and not columns: -1909 return None -1910 -1911 return self.expression(exp.TableAlias, this=alias, columns=columns) -1912 -1913 def _parse_subquery( -1914 self, this: t.Optional[exp.Expression], parse_alias: bool = True -1915 ) -> exp.Expression: -1916 return self.expression( -1917 exp.Subquery, -1918 this=this, -1919 pivots=self._parse_pivots(), -1920 alias=self._parse_table_alias() if parse_alias else None, -1921 ) -1922 -1923 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: -1924 if not isinstance(this, self.MODIFIABLES): -1925 return -1926 -1927 table = isinstance(this, exp.Table) -1928 -1929 while True: -1930 join = self._parse_join() -1931 if join: -1932 this.append("joins", join) +1908 index = self._index +1909 if self._match(TokenType.L_PAREN): +1910 columns = self._parse_csv(self._parse_function_parameter) +1911 self._match_r_paren() if columns else self._retreat(index) +1912 else: +1913 columns = None +1914 +1915 if not alias and not columns: +1916 return None +1917 +1918 return self.expression(exp.TableAlias, this=alias, columns=columns) +1919 +1920 def _parse_subquery( +1921 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1922 ) -> exp.Expression: +1923 return self.expression( +1924 exp.Subquery, +1925 this=this, +1926 pivots=self._parse_pivots(), +1927 alias=self._parse_table_alias() if parse_alias else None, +1928 ) +1929 +1930 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1931 if not isinstance(this, self.MODIFIABLES): +1932 return 1933 -1934 lateral = None -1935 if not join: -1936 lateral = self._parse_lateral() -1937 if lateral: -1938 this.append("laterals", lateral) -1939 -1940 comma = None if table else self._match(TokenType.COMMA) -1941 if comma: -1942 this.args["from"].append("expressions", self._parse_table()) -1943 -1944 if not (lateral or join or comma): -1945 break +1934 table = isinstance(this, exp.Table) +1935 +1936 while True: +1937 join = self._parse_join() +1938 if join: +1939 this.append("joins", join) +1940 +1941 lateral = None +1942 if not join: +1943 lateral = self._parse_lateral() +1944 if lateral: +1945 this.append("laterals", lateral) 1946 -1947 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1948 expression = parser(self) -1949 -1950 if expression: -1951 this.set(key, expression) -1952 -1953 def _parse_hint(self) -> t.Optional[exp.Expression]: -1954 if self._match(TokenType.HINT): -1955 hints = self._parse_csv(self._parse_function) -1956 if not self._match_pair(TokenType.STAR, TokenType.SLASH): -1957 self.raise_error("Expected */ after HINT") -1958 return self.expression(exp.Hint, expressions=hints) +1947 comma = None if table else self._match(TokenType.COMMA) +1948 if comma: +1949 this.args["from"].append("expressions", self._parse_table()) +1950 +1951 if not (lateral or join or comma): +1952 break +1953 +1954 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1955 expression = parser(self) +1956 +1957 if expression: +1958 this.set(key, expression) 1959 -1960 return None -1961 -1962 def _parse_into(self) -> t.Optional[exp.Expression]: -1963 if not self._match(TokenType.INTO): -1964 return None -1965 -1966 temp = self._match(TokenType.TEMPORARY) -1967 unlogged = self._match(TokenType.UNLOGGED) -1968 self._match(TokenType.TABLE) -1969 -1970 return self.expression( -1971 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged -1972 ) -1973 -1974 def _parse_from(self) -> t.Optional[exp.Expression]: -1975 if not self._match(TokenType.FROM): -1976 return None -1977 -1978 return self.expression( -1979 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) -1980 ) -1981 -1982 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: -1983 if not self._match(TokenType.MATCH_RECOGNIZE): -1984 return None -1985 -1986 self._match_l_paren() -1987 -1988 partition = self._parse_partition_by() -1989 order = self._parse_order() -1990 measures = ( -1991 self._parse_csv(self._parse_expression) if self._match_text_seq("MEASURES") else None -1992 ) -1993 -1994 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): -1995 rows = exp.Var(this="ONE ROW PER MATCH") -1996 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): -1997 text = "ALL ROWS PER MATCH" -1998 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): -1999 text += f" SHOW EMPTY MATCHES" -2000 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): -2001 text += f" OMIT EMPTY MATCHES" -2002 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): -2003 text += f" WITH UNMATCHED ROWS" -2004 rows = exp.Var(this=text) -2005 else: -2006 rows = None -2007 -2008 if self._match_text_seq("AFTER", "MATCH", "SKIP"): -2009 text = "AFTER MATCH SKIP" -2010 if self._match_text_seq("PAST", "LAST", "ROW"): -2011 text += f" PAST LAST ROW" -2012 elif self._match_text_seq("TO", "NEXT", "ROW"): -2013 text += f" TO NEXT ROW" -2014 elif self._match_text_seq("TO", "FIRST"): -2015 text += f" TO FIRST {self._advance_any().text}" # type: ignore -2016 elif self._match_text_seq("TO", "LAST"): -2017 text += f" TO LAST {self._advance_any().text}" # type: ignore -2018 after = exp.Var(this=text) -2019 else: -2020 after = None -2021 -2022 if self._match_text_seq("PATTERN"): -2023 self._match_l_paren() -2024 -2025 if not self._curr: -2026 self.raise_error("Expecting )", self._curr) -2027 -2028 paren = 1 -2029 start = self._curr -2030 -2031 while self._curr and paren > 0: -2032 if self._curr.token_type == TokenType.L_PAREN: -2033 paren += 1 -2034 if self._curr.token_type == TokenType.R_PAREN: -2035 paren -= 1 -2036 end = self._prev -2037 self._advance() -2038 if paren > 0: -2039 self.raise_error("Expecting )", self._curr) -2040 pattern = exp.Var(this=self._find_sql(start, end)) -2041 else: -2042 pattern = None -2043 -2044 define = ( -2045 self._parse_csv( -2046 lambda: self.expression( -2047 exp.Alias, -2048 alias=self._parse_id_var(any_token=True), -2049 this=self._match(TokenType.ALIAS) and self._parse_conjunction(), -2050 ) -2051 ) -2052 if self._match_text_seq("DEFINE") -2053 else None -2054 ) -2055 -2056 self._match_r_paren() -2057 -2058 return self.expression( -2059 exp.MatchRecognize, -2060 partition_by=partition, -2061 order=order, -2062 measures=measures, -2063 rows=rows, -2064 after=after, -2065 pattern=pattern, -2066 define=define, -2067 alias=self._parse_table_alias(), -2068 ) -2069 -2070 def _parse_lateral(self) -> t.Optional[exp.Expression]: -2071 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) -2072 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) -2073 -2074 if outer_apply or cross_apply: -2075 this = self._parse_select(table=True) -2076 view = None -2077 outer = not cross_apply -2078 elif self._match(TokenType.LATERAL): -2079 this = self._parse_select(table=True) -2080 view = self._match(TokenType.VIEW) -2081 outer = self._match(TokenType.OUTER) -2082 else: -2083 return None -2084 -2085 if not this: -2086 this = self._parse_function() or self._parse_id_var(any_token=False) -2087 while self._match(TokenType.DOT): -2088 this = exp.Dot( -2089 this=this, -2090 expression=self._parse_function() or self._parse_id_var(any_token=False), -2091 ) -2092 -2093 table_alias: t.Optional[exp.Expression] -2094 -2095 if view: -2096 table = self._parse_id_var(any_token=False) -2097 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] -2098 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) -2099 else: -2100 table_alias = self._parse_table_alias() +1960 def _parse_hint(self) -> t.Optional[exp.Expression]: +1961 if self._match(TokenType.HINT): +1962 hints = self._parse_csv(self._parse_function) +1963 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1964 self.raise_error("Expected */ after HINT") +1965 return self.expression(exp.Hint, expressions=hints) +1966 +1967 return None +1968 +1969 def _parse_into(self) -> t.Optional[exp.Expression]: +1970 if not self._match(TokenType.INTO): +1971 return None +1972 +1973 temp = self._match(TokenType.TEMPORARY) +1974 unlogged = self._match(TokenType.UNLOGGED) +1975 self._match(TokenType.TABLE) +1976 +1977 return self.expression( +1978 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1979 ) +1980 +1981 def _parse_from(self) -> t.Optional[exp.Expression]: +1982 if not self._match(TokenType.FROM): +1983 return None +1984 +1985 return self.expression( +1986 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1987 ) +1988 +1989 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1990 if not self._match(TokenType.MATCH_RECOGNIZE): +1991 return None +1992 +1993 self._match_l_paren() +1994 +1995 partition = self._parse_partition_by() +1996 order = self._parse_order() +1997 measures = ( +1998 self._parse_csv(self._parse_expression) if self._match_text_seq("MEASURES") else None +1999 ) +2000 +2001 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +2002 rows = exp.Var(this="ONE ROW PER MATCH") +2003 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +2004 text = "ALL ROWS PER MATCH" +2005 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +2006 text += f" SHOW EMPTY MATCHES" +2007 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +2008 text += f" OMIT EMPTY MATCHES" +2009 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +2010 text += f" WITH UNMATCHED ROWS" +2011 rows = exp.Var(this=text) +2012 else: +2013 rows = None +2014 +2015 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +2016 text = "AFTER MATCH SKIP" +2017 if self._match_text_seq("PAST", "LAST", "ROW"): +2018 text += f" PAST LAST ROW" +2019 elif self._match_text_seq("TO", "NEXT", "ROW"): +2020 text += f" TO NEXT ROW" +2021 elif self._match_text_seq("TO", "FIRST"): +2022 text += f" TO FIRST {self._advance_any().text}" # type: ignore +2023 elif self._match_text_seq("TO", "LAST"): +2024 text += f" TO LAST {self._advance_any().text}" # type: ignore +2025 after = exp.Var(this=text) +2026 else: +2027 after = None +2028 +2029 if self._match_text_seq("PATTERN"): +2030 self._match_l_paren() +2031 +2032 if not self._curr: +2033 self.raise_error("Expecting )", self._curr) +2034 +2035 paren = 1 +2036 start = self._curr +2037 +2038 while self._curr and paren > 0: +2039 if self._curr.token_type == TokenType.L_PAREN: +2040 paren += 1 +2041 if self._curr.token_type == TokenType.R_PAREN: +2042 paren -= 1 +2043 end = self._prev +2044 self._advance() +2045 if paren > 0: +2046 self.raise_error("Expecting )", self._curr) +2047 pattern = exp.Var(this=self._find_sql(start, end)) +2048 else: +2049 pattern = None +2050 +2051 define = ( +2052 self._parse_csv( +2053 lambda: self.expression( +2054 exp.Alias, +2055 alias=self._parse_id_var(any_token=True), +2056 this=self._match(TokenType.ALIAS) and self._parse_conjunction(), +2057 ) +2058 ) +2059 if self._match_text_seq("DEFINE") +2060 else None +2061 ) +2062 +2063 self._match_r_paren() +2064 +2065 return self.expression( +2066 exp.MatchRecognize, +2067 partition_by=partition, +2068 order=order, +2069 measures=measures, +2070 rows=rows, +2071 after=after, +2072 pattern=pattern, +2073 define=define, +2074 alias=self._parse_table_alias(), +2075 ) +2076 +2077 def _parse_lateral(self) -> t.Optional[exp.Expression]: +2078 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +2079 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +2080 +2081 if outer_apply or cross_apply: +2082 this = self._parse_select(table=True) +2083 view = None +2084 outer = not cross_apply +2085 elif self._match(TokenType.LATERAL): +2086 this = self._parse_select(table=True) +2087 view = self._match(TokenType.VIEW) +2088 outer = self._match(TokenType.OUTER) +2089 else: +2090 return None +2091 +2092 if not this: +2093 this = self._parse_function() or self._parse_id_var(any_token=False) +2094 while self._match(TokenType.DOT): +2095 this = exp.Dot( +2096 this=this, +2097 expression=self._parse_function() or self._parse_id_var(any_token=False), +2098 ) +2099 +2100 table_alias: t.Optional[exp.Expression] 2101 -2102 expression = self.expression( -2103 exp.Lateral, -2104 this=this, -2105 view=view, -2106 outer=outer, -2107 alias=table_alias, -2108 ) -2109 -2110 return expression -2111 -2112 def _parse_join_side_and_kind( -2113 self, -2114 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: -2115 return ( -2116 self._match(TokenType.NATURAL) and self._prev, -2117 self._match_set(self.JOIN_SIDES) and self._prev, -2118 self._match_set(self.JOIN_KINDS) and self._prev, -2119 ) -2120 -2121 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: -2122 index = self._index -2123 natural, side, kind = self._parse_join_side_and_kind() -2124 hint = self._prev.text if self._match_texts(self.JOIN_HINTS) else None -2125 join = self._match(TokenType.JOIN) -2126 -2127 if not skip_join_token and not join: -2128 self._retreat(index) -2129 kind = None -2130 natural = None -2131 side = None -2132 -2133 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY, False) -2134 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY, False) -2135 -2136 if not skip_join_token and not join and not outer_apply and not cross_apply: -2137 return None -2138 -2139 if outer_apply: -2140 side = Token(TokenType.LEFT, "LEFT") -2141 -2142 kwargs: t.Dict[ -2143 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] -2144 ] = {"this": self._parse_table()} +2102 if view: +2103 table = self._parse_id_var(any_token=False) +2104 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +2105 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +2106 else: +2107 table_alias = self._parse_table_alias() +2108 +2109 expression = self.expression( +2110 exp.Lateral, +2111 this=this, +2112 view=view, +2113 outer=outer, +2114 alias=table_alias, +2115 ) +2116 +2117 return expression +2118 +2119 def _parse_join_side_and_kind( +2120 self, +2121 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +2122 return ( +2123 self._match(TokenType.NATURAL) and self._prev, +2124 self._match_set(self.JOIN_SIDES) and self._prev, +2125 self._match_set(self.JOIN_KINDS) and self._prev, +2126 ) +2127 +2128 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +2129 index = self._index +2130 natural, side, kind = self._parse_join_side_and_kind() +2131 hint = self._prev.text if self._match_texts(self.JOIN_HINTS) else None +2132 join = self._match(TokenType.JOIN) +2133 +2134 if not skip_join_token and not join: +2135 self._retreat(index) +2136 kind = None +2137 natural = None +2138 side = None +2139 +2140 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY, False) +2141 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY, False) +2142 +2143 if not skip_join_token and not join and not outer_apply and not cross_apply: +2144 return None 2145 -2146 if natural: -2147 kwargs["natural"] = True -2148 if side: -2149 kwargs["side"] = side.text -2150 if kind: -2151 kwargs["kind"] = kind.text -2152 if hint: -2153 kwargs["hint"] = hint -2154 -2155 if self._match(TokenType.ON): -2156 kwargs["on"] = self._parse_conjunction() -2157 elif self._match(TokenType.USING): -2158 kwargs["using"] = self._parse_wrapped_id_vars() -2159 -2160 return self.expression(exp.Join, **kwargs) # type: ignore +2146 if outer_apply: +2147 side = Token(TokenType.LEFT, "LEFT") +2148 +2149 kwargs: t.Dict[ +2150 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2151 ] = {"this": self._parse_table()} +2152 +2153 if natural: +2154 kwargs["natural"] = True +2155 if side: +2156 kwargs["side"] = side.text +2157 if kind: +2158 kwargs["kind"] = kind.text +2159 if hint: +2160 kwargs["hint"] = hint 2161 -2162 def _parse_index(self) -> exp.Expression: -2163 index = self._parse_id_var() -2164 self._match(TokenType.ON) -2165 self._match(TokenType.TABLE) # hive +2162 if self._match(TokenType.ON): +2163 kwargs["on"] = self._parse_conjunction() +2164 elif self._match(TokenType.USING): +2165 kwargs["using"] = self._parse_wrapped_id_vars() 2166 -2167 return self.expression( -2168 exp.Index, -2169 this=index, -2170 table=self.expression(exp.Table, this=self._parse_id_var()), -2171 columns=self._parse_expression(), -2172 ) +2167 return self.expression(exp.Join, **kwargs) # type: ignore +2168 +2169 def _parse_index(self) -> exp.Expression: +2170 index = self._parse_id_var() +2171 self._match(TokenType.ON) +2172 self._match(TokenType.TABLE) # hive 2173 -2174 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: -2175 unique = self._match(TokenType.UNIQUE) -2176 primary = self._match_text_seq("PRIMARY") -2177 amp = self._match_text_seq("AMP") -2178 if not self._match(TokenType.INDEX): -2179 return None -2180 index = self._parse_id_var() -2181 columns = None -2182 if self._match(TokenType.L_PAREN, advance=False): -2183 columns = self._parse_wrapped_csv(self._parse_column) -2184 return self.expression( -2185 exp.Index, -2186 this=index, -2187 columns=columns, -2188 unique=unique, -2189 primary=primary, -2190 amp=amp, -2191 ) -2192 -2193 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -2194 catalog = None -2195 db = None -2196 -2197 table = ( -2198 (not schema and self._parse_function()) -2199 or self._parse_id_var(any_token=False) -2200 or self._parse_string_as_identifier() -2201 ) -2202 -2203 while self._match(TokenType.DOT): -2204 if catalog: -2205 # This allows nesting the table in arbitrarily many dot expressions if needed -2206 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) -2207 else: -2208 catalog = db -2209 db = table -2210 table = self._parse_id_var() -2211 -2212 if not table: -2213 self.raise_error(f"Expected table name but got {self._curr}") -2214 -2215 return self.expression( -2216 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() -2217 ) +2174 return self.expression( +2175 exp.Index, +2176 this=index, +2177 table=self.expression(exp.Table, this=self._parse_id_var()), +2178 columns=self._parse_expression(), +2179 ) +2180 +2181 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2182 unique = self._match(TokenType.UNIQUE) +2183 primary = self._match_text_seq("PRIMARY") +2184 amp = self._match_text_seq("AMP") +2185 if not self._match(TokenType.INDEX): +2186 return None +2187 index = self._parse_id_var() +2188 columns = None +2189 if self._match(TokenType.L_PAREN, advance=False): +2190 columns = self._parse_wrapped_csv(self._parse_column) +2191 return self.expression( +2192 exp.Index, +2193 this=index, +2194 columns=columns, +2195 unique=unique, +2196 primary=primary, +2197 amp=amp, +2198 ) +2199 +2200 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2201 catalog = None +2202 db = None +2203 +2204 table = ( +2205 (not schema and self._parse_function()) +2206 or self._parse_id_var(any_token=False) +2207 or self._parse_string_as_identifier() +2208 ) +2209 +2210 while self._match(TokenType.DOT): +2211 if catalog: +2212 # This allows nesting the table in arbitrarily many dot expressions if needed +2213 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2214 else: +2215 catalog = db +2216 db = table +2217 table = self._parse_id_var() 2218 -2219 def _parse_table( -2220 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -2221 ) -> t.Optional[exp.Expression]: -2222 lateral = self._parse_lateral() -2223 -2224 if lateral: -2225 return lateral -2226 -2227 unnest = self._parse_unnest() -2228 -2229 if unnest: -2230 return unnest -2231 -2232 values = self._parse_derived_table_values() +2219 if not table: +2220 self.raise_error(f"Expected table name but got {self._curr}") +2221 +2222 return self.expression( +2223 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2224 ) +2225 +2226 def _parse_table( +2227 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2228 ) -> t.Optional[exp.Expression]: +2229 lateral = self._parse_lateral() +2230 +2231 if lateral: +2232 return lateral 2233 -2234 if values: -2235 return values -2236 -2237 subquery = self._parse_select(table=True) +2234 unnest = self._parse_unnest() +2235 +2236 if unnest: +2237 return unnest 2238 -2239 if subquery: -2240 if not subquery.args.get("pivots"): -2241 subquery.set("pivots", self._parse_pivots()) -2242 return subquery +2239 values = self._parse_derived_table_values() +2240 +2241 if values: +2242 return values 2243 -2244 this = self._parse_table_parts(schema=schema) +2244 subquery = self._parse_select(table=True) 2245 -2246 if schema: -2247 return self._parse_schema(this=this) -2248 -2249 if self.alias_post_tablesample: -2250 table_sample = self._parse_table_sample() -2251 -2252 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -2253 -2254 if alias: -2255 this.set("alias", alias) -2256 -2257 if not this.args.get("pivots"): -2258 this.set("pivots", self._parse_pivots()) -2259 -2260 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): -2261 this.set( -2262 "hints", -2263 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), -2264 ) -2265 self._match_r_paren() +2246 if subquery: +2247 if not subquery.args.get("pivots"): +2248 subquery.set("pivots", self._parse_pivots()) +2249 return subquery +2250 +2251 this = self._parse_table_parts(schema=schema) +2252 +2253 if schema: +2254 return self._parse_schema(this=this) +2255 +2256 if self.alias_post_tablesample: +2257 table_sample = self._parse_table_sample() +2258 +2259 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +2260 +2261 if alias: +2262 this.set("alias", alias) +2263 +2264 if not this.args.get("pivots"): +2265 this.set("pivots", self._parse_pivots()) 2266 -2267 if not self.alias_post_tablesample: -2268 table_sample = self._parse_table_sample() -2269 -2270 if table_sample: -2271 table_sample.set("this", this) -2272 this = table_sample +2267 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2268 this.set( +2269 "hints", +2270 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2271 ) +2272 self._match_r_paren() 2273 -2274 return this -2275 -2276 def _parse_unnest(self) -> t.Optional[exp.Expression]: -2277 if not self._match(TokenType.UNNEST): -2278 return None -2279 -2280 expressions = self._parse_wrapped_csv(self._parse_column) -2281 ordinality = self._match_pair(TokenType.WITH, TokenType.ORDINALITY) -2282 alias = self._parse_table_alias() -2283 -2284 if alias and self.unnest_column_only: -2285 if alias.args.get("columns"): -2286 self.raise_error("Unexpected extra column alias in unnest.") -2287 alias.set("columns", [alias.this]) -2288 alias.set("this", None) -2289 -2290 offset = None -2291 if self._match_pair(TokenType.WITH, TokenType.OFFSET): -2292 self._match(TokenType.ALIAS) -2293 offset = self._parse_id_var() or exp.Identifier(this="offset") -2294 -2295 return self.expression( -2296 exp.Unnest, -2297 expressions=expressions, -2298 ordinality=ordinality, -2299 alias=alias, -2300 offset=offset, -2301 ) -2302 -2303 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: -2304 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) -2305 if not is_derived and not self._match(TokenType.VALUES): -2306 return None -2307 -2308 expressions = self._parse_csv(self._parse_value) +2274 if not self.alias_post_tablesample: +2275 table_sample = self._parse_table_sample() +2276 +2277 if table_sample: +2278 table_sample.set("this", this) +2279 this = table_sample +2280 +2281 return this +2282 +2283 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2284 if not self._match(TokenType.UNNEST): +2285 return None +2286 +2287 expressions = self._parse_wrapped_csv(self._parse_type) +2288 ordinality = self._match_pair(TokenType.WITH, TokenType.ORDINALITY) +2289 alias = self._parse_table_alias() +2290 +2291 if alias and self.unnest_column_only: +2292 if alias.args.get("columns"): +2293 self.raise_error("Unexpected extra column alias in unnest.") +2294 alias.set("columns", [alias.this]) +2295 alias.set("this", None) +2296 +2297 offset = None +2298 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2299 self._match(TokenType.ALIAS) +2300 offset = self._parse_id_var() or exp.Identifier(this="offset") +2301 +2302 return self.expression( +2303 exp.Unnest, +2304 expressions=expressions, +2305 ordinality=ordinality, +2306 alias=alias, +2307 offset=offset, +2308 ) 2309 -2310 if is_derived: -2311 self._match_r_paren() -2312 -2313 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2310 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2311 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2312 if not is_derived and not self._match(TokenType.VALUES): +2313 return None 2314 -2315 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: -2316 if not self._match(TokenType.TABLE_SAMPLE) and not ( -2317 as_modifier and self._match_text_seq("USING", "SAMPLE") -2318 ): -2319 return None -2320 -2321 bucket_numerator = None -2322 bucket_denominator = None -2323 bucket_field = None -2324 percent = None -2325 rows = None -2326 size = None -2327 seed = None -2328 -2329 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" -2330 method = self._parse_var(tokens=(TokenType.ROW,)) -2331 -2332 self._match(TokenType.L_PAREN) -2333 -2334 num = self._parse_number() +2315 expressions = self._parse_csv(self._parse_value) +2316 +2317 if is_derived: +2318 self._match_r_paren() +2319 +2320 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2321 +2322 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2323 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2324 as_modifier and self._match_text_seq("USING", "SAMPLE") +2325 ): +2326 return None +2327 +2328 bucket_numerator = None +2329 bucket_denominator = None +2330 bucket_field = None +2331 percent = None +2332 rows = None +2333 size = None +2334 seed = None 2335 -2336 if self._match(TokenType.BUCKET): -2337 bucket_numerator = self._parse_number() -2338 self._match(TokenType.OUT_OF) -2339 bucket_denominator = bucket_denominator = self._parse_number() -2340 self._match(TokenType.ON) -2341 bucket_field = self._parse_field() -2342 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): -2343 percent = num -2344 elif self._match(TokenType.ROWS): -2345 rows = num -2346 else: -2347 size = num -2348 -2349 self._match(TokenType.R_PAREN) -2350 -2351 if self._match(TokenType.L_PAREN): -2352 method = self._parse_var() -2353 seed = self._match(TokenType.COMMA) and self._parse_number() -2354 self._match_r_paren() -2355 elif self._match_texts(("SEED", "REPEATABLE")): -2356 seed = self._parse_wrapped(self._parse_number) +2336 kind = ( +2337 self._prev.text if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2338 ) +2339 method = self._parse_var(tokens=(TokenType.ROW,)) +2340 +2341 self._match(TokenType.L_PAREN) +2342 +2343 num = self._parse_number() +2344 +2345 if self._match(TokenType.BUCKET): +2346 bucket_numerator = self._parse_number() +2347 self._match(TokenType.OUT_OF) +2348 bucket_denominator = bucket_denominator = self._parse_number() +2349 self._match(TokenType.ON) +2350 bucket_field = self._parse_field() +2351 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2352 percent = num +2353 elif self._match(TokenType.ROWS): +2354 rows = num +2355 else: +2356 size = num 2357 -2358 return self.expression( -2359 exp.TableSample, -2360 method=method, -2361 bucket_numerator=bucket_numerator, -2362 bucket_denominator=bucket_denominator, -2363 bucket_field=bucket_field, -2364 percent=percent, -2365 rows=rows, -2366 size=size, -2367 seed=seed, -2368 kind=kind, -2369 ) -2370 -2371 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2372 return list(iter(self._parse_pivot, None)) -2373 -2374 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2375 index = self._index -2376 -2377 if self._match(TokenType.PIVOT): -2378 unpivot = False -2379 elif self._match(TokenType.UNPIVOT): -2380 unpivot = True -2381 else: -2382 return None -2383 -2384 expressions = [] -2385 field = None -2386 -2387 if not self._match(TokenType.L_PAREN): -2388 self._retreat(index) -2389 return None -2390 -2391 if unpivot: -2392 expressions = self._parse_csv(self._parse_column) -2393 else: -2394 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2358 self._match(TokenType.R_PAREN) +2359 +2360 if self._match(TokenType.L_PAREN): +2361 method = self._parse_var() +2362 seed = self._match(TokenType.COMMA) and self._parse_number() +2363 self._match_r_paren() +2364 elif self._match_texts(("SEED", "REPEATABLE")): +2365 seed = self._parse_wrapped(self._parse_number) +2366 +2367 return self.expression( +2368 exp.TableSample, +2369 method=method, +2370 bucket_numerator=bucket_numerator, +2371 bucket_denominator=bucket_denominator, +2372 bucket_field=bucket_field, +2373 percent=percent, +2374 rows=rows, +2375 size=size, +2376 seed=seed, +2377 kind=kind, +2378 ) +2379 +2380 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2381 return list(iter(self._parse_pivot, None)) +2382 +2383 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2384 index = self._index +2385 +2386 if self._match(TokenType.PIVOT): +2387 unpivot = False +2388 elif self._match(TokenType.UNPIVOT): +2389 unpivot = True +2390 else: +2391 return None +2392 +2393 expressions = [] +2394 field = None 2395 -2396 if not expressions: -2397 self.raise_error("Failed to parse PIVOT's aggregation list") -2398 -2399 if not self._match(TokenType.FOR): -2400 self.raise_error("Expecting FOR") -2401 -2402 value = self._parse_column() -2403 -2404 if not self._match(TokenType.IN): -2405 self.raise_error("Expecting IN") -2406 -2407 field = self._parse_in(value) -2408 -2409 self._match_r_paren() +2396 if not self._match(TokenType.L_PAREN): +2397 self._retreat(index) +2398 return None +2399 +2400 if unpivot: +2401 expressions = self._parse_csv(self._parse_column) +2402 else: +2403 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2404 +2405 if not expressions: +2406 self.raise_error("Failed to parse PIVOT's aggregation list") +2407 +2408 if not self._match(TokenType.FOR): +2409 self.raise_error("Expecting FOR") 2410 -2411 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2411 value = self._parse_column() 2412 -2413 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): -2414 pivot.set("alias", self._parse_table_alias()) +2413 if not self._match(TokenType.IN): +2414 self.raise_error("Expecting IN") 2415 -2416 if not unpivot: -2417 names = self._pivot_column_names(t.cast(t.List[exp.Expression], expressions)) -2418 -2419 columns: t.List[exp.Expression] = [] -2420 for col in pivot.args["field"].expressions: -2421 for name in names: -2422 if self.PREFIXED_PIVOT_COLUMNS: -2423 name = f"{name}_{col.alias_or_name}" if name else col.alias_or_name -2424 else: -2425 name = f"{col.alias_or_name}_{name}" if name else col.alias_or_name -2426 -2427 columns.append(exp.to_identifier(name, quoted=self.QUOTED_PIVOT_COLUMNS)) -2428 -2429 pivot.set("columns", columns) -2430 -2431 return pivot -2432 -2433 def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: -2434 return [agg.alias for agg in pivot_columns] +2416 field = self._parse_in(value) +2417 +2418 self._match_r_paren() +2419 +2420 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2421 +2422 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2423 pivot.set("alias", self._parse_table_alias()) +2424 +2425 if not unpivot: +2426 names = self._pivot_column_names(t.cast(t.List[exp.Expression], expressions)) +2427 +2428 columns: t.List[exp.Expression] = [] +2429 for col in pivot.args["field"].expressions: +2430 for name in names: +2431 if self.PREFIXED_PIVOT_COLUMNS: +2432 name = f"{name}_{col.alias_or_name}" if name else col.alias_or_name +2433 else: +2434 name = f"{col.alias_or_name}_{name}" if name else col.alias_or_name 2435 -2436 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: -2437 if not skip_where_token and not self._match(TokenType.WHERE): -2438 return None +2436 columns.append(exp.to_identifier(name, quoted=self.QUOTED_PIVOT_COLUMNS)) +2437 +2438 pivot.set("columns", columns) 2439 -2440 return self.expression( -2441 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() -2442 ) -2443 -2444 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: -2445 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): -2446 return None -2447 -2448 elements = defaultdict(list) -2449 -2450 while True: -2451 expressions = self._parse_csv(self._parse_conjunction) -2452 if expressions: -2453 elements["expressions"].extend(expressions) -2454 -2455 grouping_sets = self._parse_grouping_sets() -2456 if grouping_sets: -2457 elements["grouping_sets"].extend(grouping_sets) +2440 return pivot +2441 +2442 def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: +2443 return [agg.alias for agg in pivot_columns] +2444 +2445 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2446 if not skip_where_token and not self._match(TokenType.WHERE): +2447 return None +2448 +2449 return self.expression( +2450 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2451 ) +2452 +2453 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2454 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2455 return None +2456 +2457 elements = defaultdict(list) 2458 -2459 rollup = None -2460 cube = None -2461 -2462 with_ = self._match(TokenType.WITH) -2463 if self._match(TokenType.ROLLUP): -2464 rollup = with_ or self._parse_wrapped_csv(self._parse_column) -2465 elements["rollup"].extend(ensure_list(rollup)) -2466 -2467 if self._match(TokenType.CUBE): -2468 cube = with_ or self._parse_wrapped_csv(self._parse_column) -2469 elements["cube"].extend(ensure_list(cube)) +2459 while True: +2460 expressions = self._parse_csv(self._parse_conjunction) +2461 if expressions: +2462 elements["expressions"].extend(expressions) +2463 +2464 grouping_sets = self._parse_grouping_sets() +2465 if grouping_sets: +2466 elements["grouping_sets"].extend(grouping_sets) +2467 +2468 rollup = None +2469 cube = None 2470 -2471 if not (expressions or grouping_sets or rollup or cube): -2472 break -2473 -2474 return self.expression(exp.Group, **elements) # type: ignore +2471 with_ = self._match(TokenType.WITH) +2472 if self._match(TokenType.ROLLUP): +2473 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2474 elements["rollup"].extend(ensure_list(rollup)) 2475 -2476 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -2477 if not self._match(TokenType.GROUPING_SETS): -2478 return None +2476 if self._match(TokenType.CUBE): +2477 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2478 elements["cube"].extend(ensure_list(cube)) 2479 -2480 return self._parse_wrapped_csv(self._parse_grouping_set) -2481 -2482 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: -2483 if self._match(TokenType.L_PAREN): -2484 grouping_set = self._parse_csv(self._parse_column) -2485 self._match_r_paren() -2486 return self.expression(exp.Tuple, expressions=grouping_set) -2487 -2488 return self._parse_column() -2489 -2490 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: -2491 if not skip_having_token and not self._match(TokenType.HAVING): -2492 return None -2493 return self.expression(exp.Having, this=self._parse_conjunction()) -2494 -2495 def _parse_qualify(self) -> t.Optional[exp.Expression]: -2496 if not self._match(TokenType.QUALIFY): -2497 return None -2498 return self.expression(exp.Qualify, this=self._parse_conjunction()) -2499 -2500 def _parse_order( -2501 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False -2502 ) -> t.Optional[exp.Expression]: -2503 if not skip_order_token and not self._match(TokenType.ORDER_BY): -2504 return this -2505 -2506 return self.expression( -2507 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) -2508 ) -2509 -2510 def _parse_sort( -2511 self, token_type: TokenType, exp_class: t.Type[exp.Expression] -2512 ) -> t.Optional[exp.Expression]: -2513 if not self._match(token_type): -2514 return None -2515 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) -2516 -2517 def _parse_ordered(self) -> exp.Expression: -2518 this = self._parse_conjunction() -2519 self._match(TokenType.ASC) -2520 is_desc = self._match(TokenType.DESC) -2521 is_nulls_first = self._match(TokenType.NULLS_FIRST) -2522 is_nulls_last = self._match(TokenType.NULLS_LAST) -2523 desc = is_desc or False -2524 asc = not desc -2525 nulls_first = is_nulls_first or False -2526 explicitly_null_ordered = is_nulls_first or is_nulls_last -2527 if ( -2528 not explicitly_null_ordered -2529 and ( -2530 (asc and self.null_ordering == "nulls_are_small") -2531 or (desc and self.null_ordering != "nulls_are_small") -2532 ) -2533 and self.null_ordering != "nulls_are_last" -2534 ): -2535 nulls_first = True -2536 -2537 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2538 -2539 def _parse_limit( -2540 self, this: t.Optional[exp.Expression] = None, top: bool = False -2541 ) -> t.Optional[exp.Expression]: -2542 if self._match(TokenType.TOP if top else TokenType.LIMIT): -2543 limit_paren = self._match(TokenType.L_PAREN) -2544 limit_exp = self.expression( -2545 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() -2546 ) +2480 if not (expressions or grouping_sets or rollup or cube): +2481 break +2482 +2483 return self.expression(exp.Group, **elements) # type: ignore +2484 +2485 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2486 if not self._match(TokenType.GROUPING_SETS): +2487 return None +2488 +2489 return self._parse_wrapped_csv(self._parse_grouping_set) +2490 +2491 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2492 if self._match(TokenType.L_PAREN): +2493 grouping_set = self._parse_csv(self._parse_column) +2494 self._match_r_paren() +2495 return self.expression(exp.Tuple, expressions=grouping_set) +2496 +2497 return self._parse_column() +2498 +2499 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2500 if not skip_having_token and not self._match(TokenType.HAVING): +2501 return None +2502 return self.expression(exp.Having, this=self._parse_conjunction()) +2503 +2504 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2505 if not self._match(TokenType.QUALIFY): +2506 return None +2507 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2508 +2509 def _parse_order( +2510 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2511 ) -> t.Optional[exp.Expression]: +2512 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2513 return this +2514 +2515 return self.expression( +2516 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2517 ) +2518 +2519 def _parse_sort( +2520 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2521 ) -> t.Optional[exp.Expression]: +2522 if not self._match(token_type): +2523 return None +2524 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2525 +2526 def _parse_ordered(self) -> exp.Expression: +2527 this = self._parse_conjunction() +2528 self._match(TokenType.ASC) +2529 is_desc = self._match(TokenType.DESC) +2530 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2531 is_nulls_last = self._match(TokenType.NULLS_LAST) +2532 desc = is_desc or False +2533 asc = not desc +2534 nulls_first = is_nulls_first or False +2535 explicitly_null_ordered = is_nulls_first or is_nulls_last +2536 if ( +2537 not explicitly_null_ordered +2538 and ( +2539 (asc and self.null_ordering == "nulls_are_small") +2540 or (desc and self.null_ordering != "nulls_are_small") +2541 ) +2542 and self.null_ordering != "nulls_are_last" +2543 ): +2544 nulls_first = True +2545 +2546 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) 2547 -2548 if limit_paren: -2549 self._match_r_paren() -2550 -2551 return limit_exp -2552 -2553 if self._match(TokenType.FETCH): -2554 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) -2555 direction = self._prev.text if direction else "FIRST" +2548 def _parse_limit( +2549 self, this: t.Optional[exp.Expression] = None, top: bool = False +2550 ) -> t.Optional[exp.Expression]: +2551 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2552 limit_paren = self._match(TokenType.L_PAREN) +2553 limit_exp = self.expression( +2554 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2555 ) 2556 -2557 count = self._parse_number() -2558 percent = self._match(TokenType.PERCENT) +2557 if limit_paren: +2558 self._match_r_paren() 2559 -2560 self._match_set((TokenType.ROW, TokenType.ROWS)) +2560 return limit_exp 2561 -2562 only = self._match(TokenType.ONLY) -2563 with_ties = self._match_text_seq("WITH", "TIES") -2564 -2565 if only and with_ties: -2566 self.raise_error("Cannot specify both ONLY and WITH TIES in FETCH clause") -2567 -2568 return self.expression( -2569 exp.Fetch, -2570 direction=direction, -2571 count=count, -2572 percent=percent, -2573 with_ties=with_ties, -2574 ) -2575 -2576 return this -2577 -2578 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2579 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): -2580 return this -2581 -2582 count = self._parse_number() -2583 self._match_set((TokenType.ROW, TokenType.ROWS)) -2584 return self.expression(exp.Offset, this=this, expression=count) -2585 -2586 def _parse_lock(self) -> t.Optional[exp.Expression]: -2587 if self._match_text_seq("FOR", "UPDATE"): -2588 return self.expression(exp.Lock, update=True) -2589 if self._match_text_seq("FOR", "SHARE"): -2590 return self.expression(exp.Lock, update=False) -2591 -2592 return None -2593 -2594 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2595 if not self._match_set(self.SET_OPERATIONS): -2596 return this -2597 -2598 token_type = self._prev.token_type -2599 -2600 if token_type == TokenType.UNION: -2601 expression = exp.Union -2602 elif token_type == TokenType.EXCEPT: -2603 expression = exp.Except -2604 else: -2605 expression = exp.Intersect +2562 if self._match(TokenType.FETCH): +2563 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2564 direction = self._prev.text if direction else "FIRST" +2565 +2566 count = self._parse_number() +2567 percent = self._match(TokenType.PERCENT) +2568 +2569 self._match_set((TokenType.ROW, TokenType.ROWS)) +2570 +2571 only = self._match(TokenType.ONLY) +2572 with_ties = self._match_text_seq("WITH", "TIES") +2573 +2574 if only and with_ties: +2575 self.raise_error("Cannot specify both ONLY and WITH TIES in FETCH clause") +2576 +2577 return self.expression( +2578 exp.Fetch, +2579 direction=direction, +2580 count=count, +2581 percent=percent, +2582 with_ties=with_ties, +2583 ) +2584 +2585 return this +2586 +2587 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2588 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2589 return this +2590 +2591 count = self._parse_number() +2592 self._match_set((TokenType.ROW, TokenType.ROWS)) +2593 return self.expression(exp.Offset, this=this, expression=count) +2594 +2595 def _parse_lock(self) -> t.Optional[exp.Expression]: +2596 if self._match_text_seq("FOR", "UPDATE"): +2597 return self.expression(exp.Lock, update=True) +2598 if self._match_text_seq("FOR", "SHARE"): +2599 return self.expression(exp.Lock, update=False) +2600 +2601 return None +2602 +2603 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2604 if not self._match_set(self.SET_OPERATIONS): +2605 return this 2606 -2607 return self.expression( -2608 expression, -2609 this=this, -2610 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), -2611 expression=self._parse_set_operations(self._parse_select(nested=True)), -2612 ) -2613 -2614 def _parse_expression(self) -> t.Optional[exp.Expression]: -2615 return self._parse_alias(self._parse_conjunction()) -2616 -2617 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2618 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) -2619 -2620 def _parse_equality(self) -> t.Optional[exp.Expression]: -2621 return self._parse_tokens(self._parse_comparison, self.EQUALITY) +2607 token_type = self._prev.token_type +2608 +2609 if token_type == TokenType.UNION: +2610 expression = exp.Union +2611 elif token_type == TokenType.EXCEPT: +2612 expression = exp.Except +2613 else: +2614 expression = exp.Intersect +2615 +2616 return self.expression( +2617 expression, +2618 this=this, +2619 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2620 expression=self._parse_set_operations(self._parse_select(nested=True)), +2621 ) 2622 -2623 def _parse_comparison(self) -> t.Optional[exp.Expression]: -2624 return self._parse_tokens(self._parse_range, self.COMPARISON) +2623 def _parse_expression(self) -> t.Optional[exp.Expression]: +2624 return self._parse_alias(self._parse_conjunction()) 2625 -2626 def _parse_range(self) -> t.Optional[exp.Expression]: -2627 this = self._parse_bitwise() -2628 negate = self._match(TokenType.NOT) -2629 -2630 if self._match_set(self.RANGE_PARSERS): -2631 expression = self.RANGE_PARSERS[self._prev.token_type](self, this) -2632 if not expression: -2633 return this +2626 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2627 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) +2628 +2629 def _parse_equality(self) -> t.Optional[exp.Expression]: +2630 return self._parse_tokens(self._parse_comparison, self.EQUALITY) +2631 +2632 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2633 return self._parse_tokens(self._parse_range, self.COMPARISON) 2634 -2635 this = expression -2636 elif self._match(TokenType.ISNULL): -2637 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2635 def _parse_range(self) -> t.Optional[exp.Expression]: +2636 this = self._parse_bitwise() +2637 negate = self._match(TokenType.NOT) 2638 -2639 # Postgres supports ISNULL and NOTNULL for conditions. -2640 # https://blog.andreiavram.ro/postgresql-null-composite-type/ -2641 if self._match(TokenType.NOTNULL): -2642 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2643 this = self.expression(exp.Not, this=this) -2644 -2645 if negate: -2646 this = self.expression(exp.Not, this=this) +2639 if self._match_set(self.RANGE_PARSERS): +2640 expression = self.RANGE_PARSERS[self._prev.token_type](self, this) +2641 if not expression: +2642 return this +2643 +2644 this = expression +2645 elif self._match(TokenType.ISNULL): +2646 this = self.expression(exp.Is, this=this, expression=exp.Null()) 2647 -2648 if self._match(TokenType.IS): -2649 this = self._parse_is(this) -2650 -2651 return this -2652 -2653 def _parse_is(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2654 index = self._index - 1 -2655 negate = self._match(TokenType.NOT) -2656 if self._match(TokenType.DISTINCT_FROM): -2657 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ -2658 return self.expression(klass, this=this, expression=self._parse_expression()) +2648 # Postgres supports ISNULL and NOTNULL for conditions. +2649 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2650 if self._match(TokenType.NOTNULL): +2651 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2652 this = self.expression(exp.Not, this=this) +2653 +2654 if negate: +2655 this = self.expression(exp.Not, this=this) +2656 +2657 if self._match(TokenType.IS): +2658 this = self._parse_is(this) 2659 -2660 expression = self._parse_null() or self._parse_boolean() -2661 if not expression: -2662 self._retreat(index) -2663 return None -2664 -2665 this = self.expression(exp.Is, this=this, expression=expression) -2666 return self.expression(exp.Not, this=this) if negate else this -2667 -2668 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2669 unnest = self._parse_unnest() -2670 if unnest: -2671 this = self.expression(exp.In, this=this, unnest=unnest) -2672 elif self._match(TokenType.L_PAREN): -2673 expressions = self._parse_csv(self._parse_select_or_expression) -2674 -2675 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): -2676 this = self.expression(exp.In, this=this, query=expressions[0]) -2677 else: -2678 this = self.expression(exp.In, this=this, expressions=expressions) -2679 -2680 self._match_r_paren() -2681 else: -2682 this = self.expression(exp.In, this=this, field=self._parse_field()) +2660 return this +2661 +2662 def _parse_is(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2663 index = self._index - 1 +2664 negate = self._match(TokenType.NOT) +2665 if self._match(TokenType.DISTINCT_FROM): +2666 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2667 return self.expression(klass, this=this, expression=self._parse_expression()) +2668 +2669 expression = self._parse_null() or self._parse_boolean() +2670 if not expression: +2671 self._retreat(index) +2672 return None +2673 +2674 this = self.expression(exp.Is, this=this, expression=expression) +2675 return self.expression(exp.Not, this=this) if negate else this +2676 +2677 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2678 unnest = self._parse_unnest() +2679 if unnest: +2680 this = self.expression(exp.In, this=this, unnest=unnest) +2681 elif self._match(TokenType.L_PAREN): +2682 expressions = self._parse_csv(self._parse_select_or_expression) 2683 -2684 return this -2685 -2686 def _parse_between(self, this: exp.Expression) -> exp.Expression: -2687 low = self._parse_bitwise() -2688 self._match(TokenType.AND) -2689 high = self._parse_bitwise() -2690 return self.expression(exp.Between, this=this, low=low, high=high) -2691 -2692 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2693 if not self._match(TokenType.ESCAPE): -2694 return this -2695 return self.expression(exp.Escape, this=this, expression=self._parse_string()) -2696 -2697 def _parse_interval(self) -> t.Optional[exp.Expression]: -2698 if not self._match(TokenType.INTERVAL): -2699 return None +2684 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2685 this = self.expression(exp.In, this=this, query=expressions[0]) +2686 else: +2687 this = self.expression(exp.In, this=this, expressions=expressions) +2688 +2689 self._match_r_paren() +2690 else: +2691 this = self.expression(exp.In, this=this, field=self._parse_field()) +2692 +2693 return this +2694 +2695 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2696 low = self._parse_bitwise() +2697 self._match(TokenType.AND) +2698 high = self._parse_bitwise() +2699 return self.expression(exp.Between, this=this, low=low, high=high) 2700 -2701 this = self._parse_primary() or self._parse_term() -2702 unit = self._parse_function() or self._parse_var() -2703 -2704 # Most dialects support, e.g., the form INTERVAL '5' day, thus we try to parse -2705 # each INTERVAL expression into this canonical form so it's easy to transpile -2706 if this and isinstance(this, exp.Literal): -2707 if this.is_number: -2708 this = exp.Literal.string(this.name) +2701 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2702 if not self._match(TokenType.ESCAPE): +2703 return this +2704 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2705 +2706 def _parse_interval(self) -> t.Optional[exp.Expression]: +2707 if not self._match(TokenType.INTERVAL): +2708 return None 2709 -2710 # Try to not clutter Snowflake's multi-part intervals like INTERVAL '1 day, 1 year' -2711 parts = this.name.split() -2712 if not unit and len(parts) <= 2: -2713 this = exp.Literal.string(seq_get(parts, 0)) -2714 unit = self.expression(exp.Var, this=seq_get(parts, 1)) -2715 -2716 return self.expression(exp.Interval, this=this, unit=unit) -2717 -2718 def _parse_bitwise(self) -> t.Optional[exp.Expression]: -2719 this = self._parse_term() -2720 -2721 while True: -2722 if self._match_set(self.BITWISE): -2723 this = self.expression( -2724 self.BITWISE[self._prev.token_type], -2725 this=this, -2726 expression=self._parse_term(), -2727 ) -2728 elif self._match_pair(TokenType.LT, TokenType.LT): -2729 this = self.expression( -2730 exp.BitwiseLeftShift, this=this, expression=self._parse_term() -2731 ) -2732 elif self._match_pair(TokenType.GT, TokenType.GT): -2733 this = self.expression( -2734 exp.BitwiseRightShift, this=this, expression=self._parse_term() -2735 ) -2736 else: -2737 break -2738 -2739 return this -2740 -2741 def _parse_term(self) -> t.Optional[exp.Expression]: -2742 return self._parse_tokens(self._parse_factor, self.TERM) -2743 -2744 def _parse_factor(self) -> t.Optional[exp.Expression]: -2745 return self._parse_tokens(self._parse_unary, self.FACTOR) -2746 -2747 def _parse_unary(self) -> t.Optional[exp.Expression]: -2748 if self._match_set(self.UNARY_PARSERS): -2749 return self.UNARY_PARSERS[self._prev.token_type](self) -2750 return self._parse_at_time_zone(self._parse_type()) -2751 -2752 def _parse_type(self) -> t.Optional[exp.Expression]: -2753 interval = self._parse_interval() -2754 if interval: -2755 return interval -2756 -2757 index = self._index -2758 data_type = self._parse_types(check_func=True) -2759 this = self._parse_column() +2710 this = self._parse_primary() or self._parse_term() +2711 unit = self._parse_function() or self._parse_var() +2712 +2713 # Most dialects support, e.g., the form INTERVAL '5' day, thus we try to parse +2714 # each INTERVAL expression into this canonical form so it's easy to transpile +2715 if this and isinstance(this, exp.Literal): +2716 if this.is_number: +2717 this = exp.Literal.string(this.name) +2718 +2719 # Try to not clutter Snowflake's multi-part intervals like INTERVAL '1 day, 1 year' +2720 parts = this.name.split() +2721 if not unit and len(parts) <= 2: +2722 this = exp.Literal.string(seq_get(parts, 0)) +2723 unit = self.expression(exp.Var, this=seq_get(parts, 1)) +2724 +2725 return self.expression(exp.Interval, this=this, unit=unit) +2726 +2727 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2728 this = self._parse_term() +2729 +2730 while True: +2731 if self._match_set(self.BITWISE): +2732 this = self.expression( +2733 self.BITWISE[self._prev.token_type], +2734 this=this, +2735 expression=self._parse_term(), +2736 ) +2737 elif self._match_pair(TokenType.LT, TokenType.LT): +2738 this = self.expression( +2739 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2740 ) +2741 elif self._match_pair(TokenType.GT, TokenType.GT): +2742 this = self.expression( +2743 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2744 ) +2745 else: +2746 break +2747 +2748 return this +2749 +2750 def _parse_term(self) -> t.Optional[exp.Expression]: +2751 return self._parse_tokens(self._parse_factor, self.TERM) +2752 +2753 def _parse_factor(self) -> t.Optional[exp.Expression]: +2754 return self._parse_tokens(self._parse_unary, self.FACTOR) +2755 +2756 def _parse_unary(self) -> t.Optional[exp.Expression]: +2757 if self._match_set(self.UNARY_PARSERS): +2758 return self.UNARY_PARSERS[self._prev.token_type](self) +2759 return self._parse_at_time_zone(self._parse_type()) 2760 -2761 if data_type: -2762 if isinstance(this, exp.Literal): -2763 parser = self.TYPE_LITERAL_PARSERS.get(data_type.this) -2764 if parser: -2765 return parser(self, this, data_type) -2766 return self.expression(exp.Cast, this=this, to=data_type) -2767 if not data_type.args.get("expressions"): -2768 self._retreat(index) -2769 return self._parse_column() -2770 return data_type -2771 -2772 return this -2773 -2774 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -2775 index = self._index -2776 -2777 prefix = self._match_text_seq("SYSUDTLIB", ".") -2778 -2779 if not self._match_set(self.TYPE_TOKENS): -2780 return None -2781 -2782 type_token = self._prev.token_type -2783 -2784 if type_token == TokenType.PSEUDO_TYPE: -2785 return self.expression(exp.PseudoType, this=self._prev.text) -2786 -2787 nested = type_token in self.NESTED_TYPE_TOKENS -2788 is_struct = type_token == TokenType.STRUCT -2789 expressions = None -2790 maybe_func = False -2791 -2792 if self._match(TokenType.L_PAREN): -2793 if is_struct: -2794 expressions = self._parse_csv(self._parse_struct_kwargs) -2795 elif nested: -2796 expressions = self._parse_csv(self._parse_types) -2797 else: -2798 expressions = self._parse_csv(self._parse_conjunction) -2799 -2800 if not expressions: -2801 self._retreat(index) -2802 return None -2803 -2804 self._match_r_paren() -2805 maybe_func = True -2806 -2807 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2808 this = exp.DataType( -2809 this=exp.DataType.Type.ARRAY, -2810 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], -2811 nested=True, -2812 ) -2813 -2814 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2815 this = exp.DataType( -2816 this=exp.DataType.Type.ARRAY, -2817 expressions=[this], -2818 nested=True, -2819 ) -2820 -2821 return this -2822 -2823 if self._match(TokenType.L_BRACKET): -2824 self._retreat(index) -2825 return None -2826 -2827 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None -2828 if nested and self._match(TokenType.LT): -2829 if is_struct: -2830 expressions = self._parse_csv(self._parse_struct_kwargs) -2831 else: -2832 expressions = self._parse_csv(self._parse_types) -2833 -2834 if not self._match(TokenType.GT): -2835 self.raise_error("Expecting >") -2836 -2837 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): -2838 values = self._parse_csv(self._parse_conjunction) -2839 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) -2840 -2841 value: t.Optional[exp.Expression] = None -2842 if type_token in self.TIMESTAMPS: -2843 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: -2844 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) -2845 elif ( -2846 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ -2847 ): -2848 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) -2849 elif self._match(TokenType.WITHOUT_TIME_ZONE): -2850 if type_token == TokenType.TIME: -2851 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) -2852 else: -2853 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2854 -2855 maybe_func = maybe_func and value is None -2856 -2857 if value is None: -2858 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2859 elif type_token == TokenType.INTERVAL: -2860 unit = self._parse_var() -2861 -2862 if not unit: -2863 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) -2864 else: -2865 value = self.expression(exp.Interval, unit=unit) -2866 -2867 if maybe_func and check_func: -2868 index2 = self._index -2869 peek = self._parse_string() -2870 -2871 if not peek: -2872 self._retreat(index) -2873 return None +2761 def _parse_type(self) -> t.Optional[exp.Expression]: +2762 interval = self._parse_interval() +2763 if interval: +2764 return interval +2765 +2766 index = self._index +2767 data_type = self._parse_types(check_func=True) +2768 this = self._parse_column() +2769 +2770 if data_type: +2771 if isinstance(this, exp.Literal): +2772 parser = self.TYPE_LITERAL_PARSERS.get(data_type.this) +2773 if parser: +2774 return parser(self, this, data_type) +2775 return self.expression(exp.Cast, this=this, to=data_type) +2776 if not data_type.args.get("expressions"): +2777 self._retreat(index) +2778 return self._parse_column() +2779 return data_type +2780 +2781 return this +2782 +2783 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2784 index = self._index +2785 +2786 prefix = self._match_text_seq("SYSUDTLIB", ".") +2787 +2788 if not self._match_set(self.TYPE_TOKENS): +2789 return None +2790 +2791 type_token = self._prev.token_type +2792 +2793 if type_token == TokenType.PSEUDO_TYPE: +2794 return self.expression(exp.PseudoType, this=self._prev.text) +2795 +2796 nested = type_token in self.NESTED_TYPE_TOKENS +2797 is_struct = type_token == TokenType.STRUCT +2798 expressions = None +2799 maybe_func = False +2800 +2801 if self._match(TokenType.L_PAREN): +2802 if is_struct: +2803 expressions = self._parse_csv(self._parse_struct_kwargs) +2804 elif nested: +2805 expressions = self._parse_csv(self._parse_types) +2806 else: +2807 expressions = self._parse_csv(self._parse_conjunction) +2808 +2809 if not expressions or not self._match(TokenType.R_PAREN): +2810 self._retreat(index) +2811 return None +2812 +2813 maybe_func = True +2814 +2815 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2816 this = exp.DataType( +2817 this=exp.DataType.Type.ARRAY, +2818 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2819 nested=True, +2820 ) +2821 +2822 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2823 this = exp.DataType( +2824 this=exp.DataType.Type.ARRAY, +2825 expressions=[this], +2826 nested=True, +2827 ) +2828 +2829 return this +2830 +2831 if self._match(TokenType.L_BRACKET): +2832 self._retreat(index) +2833 return None +2834 +2835 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2836 if nested and self._match(TokenType.LT): +2837 if is_struct: +2838 expressions = self._parse_csv(self._parse_struct_kwargs) +2839 else: +2840 expressions = self._parse_csv(self._parse_types) +2841 +2842 if not self._match(TokenType.GT): +2843 self.raise_error("Expecting >") +2844 +2845 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2846 values = self._parse_csv(self._parse_conjunction) +2847 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2848 +2849 value: t.Optional[exp.Expression] = None +2850 if type_token in self.TIMESTAMPS: +2851 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2852 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2853 elif ( +2854 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2855 ): +2856 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2857 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2858 if type_token == TokenType.TIME: +2859 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2860 else: +2861 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2862 +2863 maybe_func = maybe_func and value is None +2864 +2865 if value is None: +2866 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2867 elif type_token == TokenType.INTERVAL: +2868 unit = self._parse_var() +2869 +2870 if not unit: +2871 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2872 else: +2873 value = self.expression(exp.Interval, unit=unit) 2874 -2875 self._retreat(index2) -2876 -2877 if value: -2878 return value -2879 -2880 return exp.DataType( -2881 this=exp.DataType.Type[type_token.value.upper()], -2882 expressions=expressions, -2883 nested=nested, -2884 values=values, -2885 prefix=prefix, -2886 ) +2875 if maybe_func and check_func: +2876 index2 = self._index +2877 peek = self._parse_string() +2878 +2879 if not peek: +2880 self._retreat(index) +2881 return None +2882 +2883 self._retreat(index2) +2884 +2885 if value: +2886 return value 2887 -2888 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: -2889 index = self._index -2890 this = self._parse_id_var() -2891 self._match(TokenType.COLON) -2892 data_type = self._parse_types() -2893 -2894 if not data_type: -2895 self._retreat(index) -2896 return self._parse_types() -2897 return self.expression(exp.StructKwarg, this=this, expression=data_type) -2898 -2899 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2900 if not self._match(TokenType.AT_TIME_ZONE): -2901 return this -2902 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) -2903 -2904 def _parse_column(self) -> t.Optional[exp.Expression]: -2905 this = self._parse_field() -2906 if isinstance(this, exp.Identifier): -2907 this = self.expression(exp.Column, this=this) -2908 elif not this: -2909 return self._parse_bracket(this) -2910 this = self._parse_bracket(this) +2888 return exp.DataType( +2889 this=exp.DataType.Type[type_token.value.upper()], +2890 expressions=expressions, +2891 nested=nested, +2892 values=values, +2893 prefix=prefix, +2894 ) +2895 +2896 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2897 index = self._index +2898 this = self._parse_id_var() +2899 self._match(TokenType.COLON) +2900 data_type = self._parse_types() +2901 +2902 if not data_type: +2903 self._retreat(index) +2904 return self._parse_types() +2905 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2906 +2907 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2908 if not self._match(TokenType.AT_TIME_ZONE): +2909 return this +2910 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) 2911 -2912 while self._match_set(self.COLUMN_OPERATORS): -2913 op_token = self._prev.token_type -2914 op = self.COLUMN_OPERATORS.get(op_token) -2915 -2916 if op_token == TokenType.DCOLON: -2917 field = self._parse_types() -2918 if not field: -2919 self.raise_error("Expected type") -2920 elif op: -2921 self._advance() -2922 value = self._prev.text -2923 field = ( -2924 exp.Literal.number(value) -2925 if self._prev.token_type == TokenType.NUMBER -2926 else exp.Literal.string(value) -2927 ) -2928 else: -2929 field = self._parse_star() or self._parse_function() or self._parse_id_var() -2930 -2931 if isinstance(field, exp.Func): -2932 # bigquery allows function calls like x.y.count(...) -2933 # SAFE.SUBSTR(...) -2934 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules -2935 this = self._replace_columns_with_dots(this) -2936 -2937 if op: -2938 this = op(self, this, field) -2939 elif isinstance(this, exp.Column) and not this.args.get("catalog"): -2940 this = self.expression( -2941 exp.Column, -2942 this=field, -2943 table=this.this, -2944 db=this.args.get("table"), -2945 catalog=this.args.get("db"), -2946 ) -2947 else: -2948 this = self.expression(exp.Dot, this=this, expression=field) -2949 this = self._parse_bracket(this) -2950 -2951 return this -2952 -2953 def _parse_primary(self) -> t.Optional[exp.Expression]: -2954 if self._match_set(self.PRIMARY_PARSERS): -2955 token_type = self._prev.token_type -2956 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) -2957 -2958 if token_type == TokenType.STRING: -2959 expressions = [primary] -2960 while self._match(TokenType.STRING): -2961 expressions.append(exp.Literal.string(self._prev.text)) -2962 if len(expressions) > 1: -2963 return self.expression(exp.Concat, expressions=expressions) -2964 return primary -2965 -2966 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2967 return exp.Literal.number(f"0.{self._prev.text}") -2968 -2969 if self._match(TokenType.L_PAREN): -2970 comments = self._prev_comments -2971 query = self._parse_select() -2972 -2973 if query: -2974 expressions = [query] -2975 else: -2976 expressions = self._parse_csv( -2977 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) -2978 ) -2979 -2980 this = seq_get(expressions, 0) -2981 self._parse_query_modifiers(this) -2982 -2983 if isinstance(this, exp.Subqueryable): -2984 this = self._parse_set_operations( -2985 self._parse_subquery(this=this, parse_alias=False) -2986 ) -2987 elif len(expressions) > 1: -2988 this = self.expression(exp.Tuple, expressions=expressions) -2989 else: -2990 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) +2912 def _parse_column(self) -> t.Optional[exp.Expression]: +2913 this = self._parse_field() +2914 if isinstance(this, exp.Identifier): +2915 this = self.expression(exp.Column, this=this) +2916 elif not this: +2917 return self._parse_bracket(this) +2918 this = self._parse_bracket(this) +2919 +2920 while self._match_set(self.COLUMN_OPERATORS): +2921 op_token = self._prev.token_type +2922 op = self.COLUMN_OPERATORS.get(op_token) +2923 +2924 if op_token == TokenType.DCOLON: +2925 field = self._parse_types() +2926 if not field: +2927 self.raise_error("Expected type") +2928 elif op: +2929 self._advance() +2930 value = self._prev.text +2931 field = ( +2932 exp.Literal.number(value) +2933 if self._prev.token_type == TokenType.NUMBER +2934 else exp.Literal.string(value) +2935 ) +2936 else: +2937 field = ( +2938 self._parse_star() +2939 or self._parse_function(anonymous=True) +2940 or self._parse_id_var() +2941 ) +2942 +2943 if isinstance(field, exp.Func): +2944 # bigquery allows function calls like x.y.count(...) +2945 # SAFE.SUBSTR(...) +2946 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2947 this = self._replace_columns_with_dots(this) +2948 +2949 if op: +2950 this = op(self, this, field) +2951 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2952 this = self.expression( +2953 exp.Column, +2954 this=field, +2955 table=this.this, +2956 db=this.args.get("table"), +2957 catalog=this.args.get("db"), +2958 ) +2959 else: +2960 this = self.expression(exp.Dot, this=this, expression=field) +2961 this = self._parse_bracket(this) +2962 +2963 return this +2964 +2965 def _parse_primary(self) -> t.Optional[exp.Expression]: +2966 if self._match_set(self.PRIMARY_PARSERS): +2967 token_type = self._prev.token_type +2968 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2969 +2970 if token_type == TokenType.STRING: +2971 expressions = [primary] +2972 while self._match(TokenType.STRING): +2973 expressions.append(exp.Literal.string(self._prev.text)) +2974 if len(expressions) > 1: +2975 return self.expression(exp.Concat, expressions=expressions) +2976 return primary +2977 +2978 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2979 return exp.Literal.number(f"0.{self._prev.text}") +2980 +2981 if self._match(TokenType.L_PAREN): +2982 comments = self._prev_comments +2983 query = self._parse_select() +2984 +2985 if query: +2986 expressions = [query] +2987 else: +2988 expressions = self._parse_csv( +2989 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2990 ) 2991 -2992 self._match_r_paren() -2993 comments.extend(self._prev_comments) +2992 this = seq_get(expressions, 0) +2993 self._parse_query_modifiers(this) 2994 -2995 if this and comments: -2996 this.comments = comments -2997 -2998 return this -2999 -3000 return None -3001 -3002 def _parse_field( -3003 self, -3004 any_token: bool = False, -3005 tokens: t.Optional[t.Collection[TokenType]] = None, -3006 ) -> t.Optional[exp.Expression]: -3007 return ( -3008 self._parse_primary() -3009 or self._parse_function() -3010 or self._parse_id_var(any_token=any_token, tokens=tokens) -3011 ) -3012 -3013 def _parse_function( -3014 self, functions: t.Optional[t.Dict[str, t.Callable]] = None -3015 ) -> t.Optional[exp.Expression]: -3016 if not self._curr: -3017 return None -3018 -3019 token_type = self._curr.token_type -3020 -3021 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -3022 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -3023 -3024 if not self._next or self._next.token_type != TokenType.L_PAREN: -3025 if token_type in self.NO_PAREN_FUNCTIONS: -3026 self._advance() -3027 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) -3028 +2995 if isinstance(this, exp.Subqueryable): +2996 this = self._parse_set_operations( +2997 self._parse_subquery(this=this, parse_alias=False) +2998 ) +2999 elif len(expressions) > 1: +3000 this = self.expression(exp.Tuple, expressions=expressions) +3001 else: +3002 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) +3003 +3004 self._match_r_paren() +3005 comments.extend(self._prev_comments) +3006 +3007 if this and comments: +3008 this.comments = comments +3009 +3010 return this +3011 +3012 return None +3013 +3014 def _parse_field( +3015 self, +3016 any_token: bool = False, +3017 tokens: t.Optional[t.Collection[TokenType]] = None, +3018 ) -> t.Optional[exp.Expression]: +3019 return ( +3020 self._parse_primary() +3021 or self._parse_function() +3022 or self._parse_id_var(any_token=any_token, tokens=tokens) +3023 ) +3024 +3025 def _parse_function( +3026 self, functions: t.Optional[t.Dict[str, t.Callable]] = None, anonymous: bool = False +3027 ) -> t.Optional[exp.Expression]: +3028 if not self._curr: 3029 return None 3030 -3031 if token_type not in self.FUNC_TOKENS: -3032 return None -3033 -3034 this = self._curr.text -3035 upper = this.upper() -3036 self._advance(2) -3037 -3038 parser = self.FUNCTION_PARSERS.get(upper) -3039 -3040 if parser: -3041 this = parser(self) -3042 else: -3043 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) -3044 -3045 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): -3046 this = self.expression(subquery_predicate, this=self._parse_select()) -3047 self._match_r_paren() -3048 return this +3031 token_type = self._curr.token_type +3032 +3033 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +3034 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) +3035 +3036 if not self._next or self._next.token_type != TokenType.L_PAREN: +3037 if token_type in self.NO_PAREN_FUNCTIONS: +3038 self._advance() +3039 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +3040 +3041 return None +3042 +3043 if token_type not in self.FUNC_TOKENS: +3044 return None +3045 +3046 this = self._curr.text +3047 upper = this.upper() +3048 self._advance(2) 3049 -3050 if functions is None: -3051 functions = self.FUNCTIONS -3052 -3053 function = functions.get(upper) -3054 args = self._parse_csv(self._parse_lambda) -3055 -3056 if function: -3057 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the -3058 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. -3059 if count_params(function) == 2: -3060 params = None -3061 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): -3062 params = self._parse_csv(self._parse_lambda) -3063 -3064 this = function(args, params) -3065 else: -3066 this = function(args) +3050 parser = self.FUNCTION_PARSERS.get(upper) +3051 +3052 if parser and not anonymous: +3053 this = parser(self) +3054 else: +3055 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +3056 +3057 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +3058 this = self.expression(subquery_predicate, this=self._parse_select()) +3059 self._match_r_paren() +3060 return this +3061 +3062 if functions is None: +3063 functions = self.FUNCTIONS +3064 +3065 function = functions.get(upper) +3066 args = self._parse_csv(self._parse_lambda) 3067 -3068 self.validate_expression(this, args) -3069 else: -3070 this = self.expression(exp.Anonymous, this=this, expressions=args) -3071 -3072 self._match_r_paren(this) -3073 return self._parse_window(this) -3074 -3075 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: -3076 return self._parse_column_def(self._parse_id_var()) -3077 -3078 def _parse_user_defined_function( -3079 self, kind: t.Optional[TokenType] = None -3080 ) -> t.Optional[exp.Expression]: -3081 this = self._parse_id_var() -3082 -3083 while self._match(TokenType.DOT): -3084 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) -3085 -3086 if not self._match(TokenType.L_PAREN): -3087 return this -3088 -3089 expressions = self._parse_csv(self._parse_function_parameter) -3090 self._match_r_paren() -3091 return self.expression( -3092 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True -3093 ) +3068 if function and not anonymous: +3069 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +3070 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +3071 if count_params(function) == 2: +3072 params = None +3073 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +3074 params = self._parse_csv(self._parse_lambda) +3075 +3076 this = function(args, params) +3077 else: +3078 this = function(args) +3079 +3080 self.validate_expression(this, args) +3081 else: +3082 this = self.expression(exp.Anonymous, this=this, expressions=args) +3083 +3084 self._match_r_paren(this) +3085 return self._parse_window(this) +3086 +3087 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +3088 return self._parse_column_def(self._parse_id_var()) +3089 +3090 def _parse_user_defined_function( +3091 self, kind: t.Optional[TokenType] = None +3092 ) -> t.Optional[exp.Expression]: +3093 this = self._parse_id_var() 3094 -3095 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: -3096 literal = self._parse_primary() -3097 if literal: -3098 return self.expression(exp.Introducer, this=token.text, expression=literal) -3099 -3100 return self.expression(exp.Identifier, this=token.text) -3101 -3102 def _parse_national(self, token: Token) -> exp.Expression: -3103 return self.expression(exp.National, this=exp.Literal.string(token.text)) -3104 -3105 def _parse_session_parameter(self) -> exp.Expression: -3106 kind = None -3107 this = self._parse_id_var() or self._parse_primary() -3108 -3109 if this and self._match(TokenType.DOT): -3110 kind = this.name -3111 this = self._parse_var() or self._parse_primary() -3112 -3113 return self.expression(exp.SessionParameter, this=this, kind=kind) -3114 -3115 def _parse_lambda(self) -> t.Optional[exp.Expression]: -3116 index = self._index -3117 -3118 if self._match(TokenType.L_PAREN): -3119 expressions = self._parse_csv(self._parse_id_var) +3095 while self._match(TokenType.DOT): +3096 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) +3097 +3098 if not self._match(TokenType.L_PAREN): +3099 return this +3100 +3101 expressions = self._parse_csv(self._parse_function_parameter) +3102 self._match_r_paren() +3103 return self.expression( +3104 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +3105 ) +3106 +3107 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +3108 literal = self._parse_primary() +3109 if literal: +3110 return self.expression(exp.Introducer, this=token.text, expression=literal) +3111 +3112 return self.expression(exp.Identifier, this=token.text) +3113 +3114 def _parse_national(self, token: Token) -> exp.Expression: +3115 return self.expression(exp.National, this=exp.Literal.string(token.text)) +3116 +3117 def _parse_session_parameter(self) -> exp.Expression: +3118 kind = None +3119 this = self._parse_id_var() or self._parse_primary() 3120 -3121 if not self._match(TokenType.R_PAREN): -3122 self._retreat(index) -3123 else: -3124 expressions = [self._parse_id_var()] -3125 -3126 if self._match_set(self.LAMBDAS): -3127 return self.LAMBDAS[self._prev.token_type](self, expressions) -3128 -3129 self._retreat(index) -3130 -3131 this: t.Optional[exp.Expression] +3121 if this and self._match(TokenType.DOT): +3122 kind = this.name +3123 this = self._parse_var() or self._parse_primary() +3124 +3125 return self.expression(exp.SessionParameter, this=this, kind=kind) +3126 +3127 def _parse_lambda(self) -> t.Optional[exp.Expression]: +3128 index = self._index +3129 +3130 if self._match(TokenType.L_PAREN): +3131 expressions = self._parse_csv(self._parse_id_var) 3132 -3133 if self._match(TokenType.DISTINCT): -3134 this = self.expression( -3135 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) -3136 ) -3137 else: -3138 this = self._parse_select_or_expression() -3139 -3140 if isinstance(this, exp.EQ): -3141 left = this.this -3142 if isinstance(left, exp.Column): -3143 left.replace(exp.Var(this=left.text("this"))) +3133 if not self._match(TokenType.R_PAREN): +3134 self._retreat(index) +3135 else: +3136 expressions = [self._parse_id_var()] +3137 +3138 if self._match_set(self.LAMBDAS): +3139 return self.LAMBDAS[self._prev.token_type](self, expressions) +3140 +3141 self._retreat(index) +3142 +3143 this: t.Optional[exp.Expression] 3144 -3145 if self._match(TokenType.IGNORE_NULLS): -3146 this = self.expression(exp.IgnoreNulls, this=this) -3147 else: -3148 self._match(TokenType.RESPECT_NULLS) -3149 -3150 return self._parse_limit(self._parse_order(this)) +3145 if self._match(TokenType.DISTINCT): +3146 this = self.expression( +3147 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +3148 ) +3149 else: +3150 this = self._parse_select_or_expression() 3151 -3152 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -3153 index = self._index -3154 -3155 try: -3156 if self._parse_select(nested=True): -3157 return this -3158 except Exception: -3159 pass -3160 finally: -3161 self._retreat(index) -3162 -3163 if not self._match(TokenType.L_PAREN): -3164 return this -3165 -3166 args = self._parse_csv( -3167 lambda: self._parse_constraint() -3168 or self._parse_column_def(self._parse_field(any_token=True)) -3169 ) -3170 self._match_r_paren() -3171 return self.expression(exp.Schema, this=this, expressions=args) +3152 if isinstance(this, exp.EQ): +3153 left = this.this +3154 if isinstance(left, exp.Column): +3155 left.replace(exp.Var(this=left.text("this"))) +3156 +3157 return self._parse_limit(self._parse_order(self._parse_respect_or_ignore_nulls(this))) +3158 +3159 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +3160 index = self._index +3161 +3162 try: +3163 if self._parse_select(nested=True): +3164 return this +3165 except Exception: +3166 pass +3167 finally: +3168 self._retreat(index) +3169 +3170 if not self._match(TokenType.L_PAREN): +3171 return this 3172 -3173 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3174 kind = self._parse_types() -3175 -3176 if self._match_text_seq("FOR", "ORDINALITY"): -3177 return self.expression(exp.ColumnDef, this=this, ordinality=True) -3178 -3179 constraints = [] -3180 while True: -3181 constraint = self._parse_column_constraint() -3182 if not constraint: -3183 break -3184 constraints.append(constraint) +3173 args = self._parse_csv( +3174 lambda: self._parse_constraint() +3175 or self._parse_column_def(self._parse_field(any_token=True)) +3176 ) +3177 self._match_r_paren() +3178 return self.expression(exp.Schema, this=this, expressions=args) +3179 +3180 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3181 kind = self._parse_types() +3182 +3183 if self._match_text_seq("FOR", "ORDINALITY"): +3184 return self.expression(exp.ColumnDef, this=this, ordinality=True) 3185 -3186 if not kind and not constraints: -3187 return this -3188 -3189 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) -3190 -3191 def _parse_auto_increment(self) -> exp.Expression: -3192 start = None -3193 increment = None -3194 -3195 if self._match(TokenType.L_PAREN, advance=False): -3196 args = self._parse_wrapped_csv(self._parse_bitwise) -3197 start = seq_get(args, 0) -3198 increment = seq_get(args, 1) -3199 elif self._match_text_seq("START"): -3200 start = self._parse_bitwise() -3201 self._match_text_seq("INCREMENT") -3202 increment = self._parse_bitwise() -3203 -3204 if start and increment: -3205 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) -3206 -3207 return exp.AutoIncrementColumnConstraint() -3208 -3209 def _parse_compress(self) -> exp.Expression: -3210 if self._match(TokenType.L_PAREN, advance=False): -3211 return self.expression( -3212 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) -3213 ) -3214 -3215 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) -3216 -3217 def _parse_generated_as_identity(self) -> exp.Expression: -3218 if self._match(TokenType.BY_DEFAULT): -3219 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) -3220 else: -3221 self._match_text_seq("ALWAYS") -3222 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3186 constraints = [] +3187 while True: +3188 constraint = self._parse_column_constraint() +3189 if not constraint: +3190 break +3191 constraints.append(constraint) +3192 +3193 if not kind and not constraints: +3194 return this +3195 +3196 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +3197 +3198 def _parse_auto_increment(self) -> exp.Expression: +3199 start = None +3200 increment = None +3201 +3202 if self._match(TokenType.L_PAREN, advance=False): +3203 args = self._parse_wrapped_csv(self._parse_bitwise) +3204 start = seq_get(args, 0) +3205 increment = seq_get(args, 1) +3206 elif self._match_text_seq("START"): +3207 start = self._parse_bitwise() +3208 self._match_text_seq("INCREMENT") +3209 increment = self._parse_bitwise() +3210 +3211 if start and increment: +3212 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +3213 +3214 return exp.AutoIncrementColumnConstraint() +3215 +3216 def _parse_compress(self) -> exp.Expression: +3217 if self._match(TokenType.L_PAREN, advance=False): +3218 return self.expression( +3219 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +3220 ) +3221 +3222 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) 3223 -3224 self._match_text_seq("AS", "IDENTITY") -3225 if self._match(TokenType.L_PAREN): -3226 if self._match_text_seq("START", "WITH"): -3227 this.set("start", self._parse_bitwise()) -3228 if self._match_text_seq("INCREMENT", "BY"): -3229 this.set("increment", self._parse_bitwise()) -3230 if self._match_text_seq("MINVALUE"): -3231 this.set("minvalue", self._parse_bitwise()) -3232 if self._match_text_seq("MAXVALUE"): -3233 this.set("maxvalue", self._parse_bitwise()) -3234 -3235 if self._match_text_seq("CYCLE"): -3236 this.set("cycle", True) -3237 elif self._match_text_seq("NO", "CYCLE"): -3238 this.set("cycle", False) -3239 -3240 self._match_r_paren() +3224 def _parse_generated_as_identity(self) -> exp.Expression: +3225 if self._match(TokenType.BY_DEFAULT): +3226 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +3227 else: +3228 self._match_text_seq("ALWAYS") +3229 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3230 +3231 self._match_text_seq("AS", "IDENTITY") +3232 if self._match(TokenType.L_PAREN): +3233 if self._match_text_seq("START", "WITH"): +3234 this.set("start", self._parse_bitwise()) +3235 if self._match_text_seq("INCREMENT", "BY"): +3236 this.set("increment", self._parse_bitwise()) +3237 if self._match_text_seq("MINVALUE"): +3238 this.set("minvalue", self._parse_bitwise()) +3239 if self._match_text_seq("MAXVALUE"): +3240 this.set("maxvalue", self._parse_bitwise()) 3241 -3242 return this -3243 -3244 def _parse_inline(self) -> t.Optional[exp.Expression]: -3245 self._match_text_seq("LENGTH") -3246 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) -3247 -3248 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: -3249 if self._match_text_seq("NULL"): -3250 return self.expression(exp.NotNullColumnConstraint) -3251 if self._match_text_seq("CASESPECIFIC"): -3252 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) -3253 return None +3242 if self._match_text_seq("CYCLE"): +3243 this.set("cycle", True) +3244 elif self._match_text_seq("NO", "CYCLE"): +3245 this.set("cycle", False) +3246 +3247 self._match_r_paren() +3248 +3249 return this +3250 +3251 def _parse_inline(self) -> t.Optional[exp.Expression]: +3252 self._match_text_seq("LENGTH") +3253 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) 3254 -3255 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: -3256 if self._match(TokenType.CONSTRAINT): -3257 this = self._parse_id_var() -3258 else: -3259 this = None -3260 -3261 if self._match_texts(self.CONSTRAINT_PARSERS): -3262 return self.expression( -3263 exp.ColumnConstraint, -3264 this=this, -3265 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), -3266 ) +3255 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3256 if self._match_text_seq("NULL"): +3257 return self.expression(exp.NotNullColumnConstraint) +3258 if self._match_text_seq("CASESPECIFIC"): +3259 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3260 return None +3261 +3262 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3263 if self._match(TokenType.CONSTRAINT): +3264 this = self._parse_id_var() +3265 else: +3266 this = None 3267 -3268 return this -3269 -3270 def _parse_constraint(self) -> t.Optional[exp.Expression]: -3271 if not self._match(TokenType.CONSTRAINT): -3272 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) -3273 -3274 this = self._parse_id_var() -3275 expressions = [] +3268 if self._match_texts(self.CONSTRAINT_PARSERS): +3269 return self.expression( +3270 exp.ColumnConstraint, +3271 this=this, +3272 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3273 ) +3274 +3275 return this 3276 -3277 while True: -3278 constraint = self._parse_unnamed_constraint() or self._parse_function() -3279 if not constraint: -3280 break -3281 expressions.append(constraint) -3282 -3283 return self.expression(exp.Constraint, this=this, expressions=expressions) -3284 -3285 def _parse_unnamed_constraint( -3286 self, constraints: t.Optional[t.Collection[str]] = None -3287 ) -> t.Optional[exp.Expression]: -3288 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): -3289 return None -3290 -3291 constraint = self._prev.text.upper() -3292 if constraint not in self.CONSTRAINT_PARSERS: -3293 self.raise_error(f"No parser found for schema constraint {constraint}.") -3294 -3295 return self.CONSTRAINT_PARSERS[constraint](self) -3296 -3297 def _parse_unique(self) -> exp.Expression: -3298 if not self._match(TokenType.L_PAREN, advance=False): -3299 return self.expression(exp.UniqueColumnConstraint) -3300 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3277 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3278 if not self._match(TokenType.CONSTRAINT): +3279 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3280 +3281 this = self._parse_id_var() +3282 expressions = [] +3283 +3284 while True: +3285 constraint = self._parse_unnamed_constraint() or self._parse_function() +3286 if not constraint: +3287 break +3288 expressions.append(constraint) +3289 +3290 return self.expression(exp.Constraint, this=this, expressions=expressions) +3291 +3292 def _parse_unnamed_constraint( +3293 self, constraints: t.Optional[t.Collection[str]] = None +3294 ) -> t.Optional[exp.Expression]: +3295 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3296 return None +3297 +3298 constraint = self._prev.text.upper() +3299 if constraint not in self.CONSTRAINT_PARSERS: +3300 self.raise_error(f"No parser found for schema constraint {constraint}.") 3301 -3302 def _parse_key_constraint_options(self) -> t.List[str]: -3303 options = [] -3304 while True: -3305 if not self._curr: -3306 break -3307 -3308 if self._match(TokenType.ON): -3309 action = None -3310 on = self._advance_any() and self._prev.text -3311 -3312 if self._match(TokenType.NO_ACTION): -3313 action = "NO ACTION" -3314 elif self._match(TokenType.CASCADE): -3315 action = "CASCADE" -3316 elif self._match_pair(TokenType.SET, TokenType.NULL): -3317 action = "SET NULL" -3318 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): -3319 action = "SET DEFAULT" -3320 else: -3321 self.raise_error("Invalid key constraint") -3322 -3323 options.append(f"ON {on} {action}") -3324 elif self._match_text_seq("NOT", "ENFORCED"): -3325 options.append("NOT ENFORCED") -3326 elif self._match_text_seq("DEFERRABLE"): -3327 options.append("DEFERRABLE") -3328 elif self._match_text_seq("INITIALLY", "DEFERRED"): -3329 options.append("INITIALLY DEFERRED") -3330 elif self._match_text_seq("NORELY"): -3331 options.append("NORELY") -3332 elif self._match_text_seq("MATCH", "FULL"): -3333 options.append("MATCH FULL") -3334 else: -3335 break -3336 -3337 return options -3338 -3339 def _parse_references(self, match=True) -> t.Optional[exp.Expression]: -3340 if match and not self._match(TokenType.REFERENCES): -3341 return None -3342 -3343 expressions = None -3344 this = self._parse_id_var() +3302 return self.CONSTRAINT_PARSERS[constraint](self) +3303 +3304 def _parse_unique(self) -> exp.Expression: +3305 if not self._match(TokenType.L_PAREN, advance=False): +3306 return self.expression(exp.UniqueColumnConstraint) +3307 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3308 +3309 def _parse_key_constraint_options(self) -> t.List[str]: +3310 options = [] +3311 while True: +3312 if not self._curr: +3313 break +3314 +3315 if self._match(TokenType.ON): +3316 action = None +3317 on = self._advance_any() and self._prev.text +3318 +3319 if self._match(TokenType.NO_ACTION): +3320 action = "NO ACTION" +3321 elif self._match(TokenType.CASCADE): +3322 action = "CASCADE" +3323 elif self._match_pair(TokenType.SET, TokenType.NULL): +3324 action = "SET NULL" +3325 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3326 action = "SET DEFAULT" +3327 else: +3328 self.raise_error("Invalid key constraint") +3329 +3330 options.append(f"ON {on} {action}") +3331 elif self._match_text_seq("NOT", "ENFORCED"): +3332 options.append("NOT ENFORCED") +3333 elif self._match_text_seq("DEFERRABLE"): +3334 options.append("DEFERRABLE") +3335 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3336 options.append("INITIALLY DEFERRED") +3337 elif self._match_text_seq("NORELY"): +3338 options.append("NORELY") +3339 elif self._match_text_seq("MATCH", "FULL"): +3340 options.append("MATCH FULL") +3341 else: +3342 break +3343 +3344 return options 3345 -3346 if self._match(TokenType.L_PAREN, advance=False): -3347 expressions = self._parse_wrapped_id_vars() -3348 -3349 options = self._parse_key_constraint_options() -3350 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) -3351 -3352 def _parse_foreign_key(self) -> exp.Expression: -3353 expressions = self._parse_wrapped_id_vars() -3354 reference = self._parse_references() -3355 options = {} -3356 -3357 while self._match(TokenType.ON): -3358 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): -3359 self.raise_error("Expected DELETE or UPDATE") -3360 -3361 kind = self._prev.text.lower() -3362 -3363 if self._match(TokenType.NO_ACTION): -3364 action = "NO ACTION" -3365 elif self._match(TokenType.SET): -3366 self._match_set((TokenType.NULL, TokenType.DEFAULT)) -3367 action = "SET " + self._prev.text.upper() -3368 else: -3369 self._advance() -3370 action = self._prev.text.upper() -3371 -3372 options[kind] = action -3373 -3374 return self.expression( -3375 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore -3376 ) -3377 -3378 def _parse_primary_key(self) -> exp.Expression: -3379 desc = ( -3380 self._match_set((TokenType.ASC, TokenType.DESC)) -3381 and self._prev.token_type == TokenType.DESC -3382 ) -3383 -3384 if not self._match(TokenType.L_PAREN, advance=False): -3385 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) -3386 -3387 expressions = self._parse_wrapped_id_vars() -3388 options = self._parse_key_constraint_options() -3389 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) +3346 def _parse_references(self, match=True) -> t.Optional[exp.Expression]: +3347 if match and not self._match(TokenType.REFERENCES): +3348 return None +3349 +3350 expressions = None +3351 this = self._parse_id_var() +3352 +3353 if self._match(TokenType.L_PAREN, advance=False): +3354 expressions = self._parse_wrapped_id_vars() +3355 +3356 options = self._parse_key_constraint_options() +3357 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3358 +3359 def _parse_foreign_key(self) -> exp.Expression: +3360 expressions = self._parse_wrapped_id_vars() +3361 reference = self._parse_references() +3362 options = {} +3363 +3364 while self._match(TokenType.ON): +3365 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3366 self.raise_error("Expected DELETE or UPDATE") +3367 +3368 kind = self._prev.text.lower() +3369 +3370 if self._match(TokenType.NO_ACTION): +3371 action = "NO ACTION" +3372 elif self._match(TokenType.SET): +3373 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3374 action = "SET " + self._prev.text.upper() +3375 else: +3376 self._advance() +3377 action = self._prev.text.upper() +3378 +3379 options[kind] = action +3380 +3381 return self.expression( +3382 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3383 ) +3384 +3385 def _parse_primary_key(self) -> exp.Expression: +3386 desc = ( +3387 self._match_set((TokenType.ASC, TokenType.DESC)) +3388 and self._prev.token_type == TokenType.DESC +3389 ) 3390 -3391 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3392 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): -3393 return this -3394 -3395 bracket_kind = self._prev.token_type -3396 expressions: t.List[t.Optional[exp.Expression]] +3391 if not self._match(TokenType.L_PAREN, advance=False): +3392 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) +3393 +3394 expressions = self._parse_wrapped_id_vars() +3395 options = self._parse_key_constraint_options() +3396 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) 3397 -3398 if self._match(TokenType.COLON): -3399 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] -3400 else: -3401 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) -3402 -3403 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs -3404 if bracket_kind == TokenType.L_BRACE: -3405 this = self.expression(exp.Struct, expressions=expressions) -3406 elif not this or this.name.upper() == "ARRAY": -3407 this = self.expression(exp.Array, expressions=expressions) -3408 else: -3409 expressions = apply_index_offset(this, expressions, -self.index_offset) -3410 this = self.expression(exp.Bracket, this=this, expressions=expressions) -3411 -3412 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: -3413 self.raise_error("Expected ]") -3414 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: -3415 self.raise_error("Expected }") -3416 -3417 this.comments = self._prev_comments -3418 return self._parse_bracket(this) -3419 -3420 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3421 if self._match(TokenType.COLON): -3422 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) -3423 return this -3424 -3425 def _parse_case(self) -> t.Optional[exp.Expression]: -3426 ifs = [] -3427 default = None -3428 -3429 expression = self._parse_conjunction() -3430 -3431 while self._match(TokenType.WHEN): -3432 this = self._parse_conjunction() -3433 self._match(TokenType.THEN) -3434 then = self._parse_conjunction() -3435 ifs.append(self.expression(exp.If, this=this, true=then)) -3436 -3437 if self._match(TokenType.ELSE): -3438 default = self._parse_conjunction() -3439 -3440 if not self._match(TokenType.END): -3441 self.raise_error("Expected END after CASE", self._prev) -3442 -3443 return self._parse_window( -3444 self.expression(exp.Case, this=expression, ifs=ifs, default=default) -3445 ) +3398 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3399 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3400 return this +3401 +3402 bracket_kind = self._prev.token_type +3403 expressions: t.List[t.Optional[exp.Expression]] +3404 +3405 if self._match(TokenType.COLON): +3406 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3407 else: +3408 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3409 +3410 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3411 if bracket_kind == TokenType.L_BRACE: +3412 this = self.expression(exp.Struct, expressions=expressions) +3413 elif not this or this.name.upper() == "ARRAY": +3414 this = self.expression(exp.Array, expressions=expressions) +3415 else: +3416 expressions = apply_index_offset(this, expressions, -self.index_offset) +3417 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3418 +3419 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3420 self.raise_error("Expected ]") +3421 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3422 self.raise_error("Expected }") +3423 +3424 this.comments = self._prev_comments +3425 return self._parse_bracket(this) +3426 +3427 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3428 if self._match(TokenType.COLON): +3429 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3430 return this +3431 +3432 def _parse_case(self) -> t.Optional[exp.Expression]: +3433 ifs = [] +3434 default = None +3435 +3436 expression = self._parse_conjunction() +3437 +3438 while self._match(TokenType.WHEN): +3439 this = self._parse_conjunction() +3440 self._match(TokenType.THEN) +3441 then = self._parse_conjunction() +3442 ifs.append(self.expression(exp.If, this=this, true=then)) +3443 +3444 if self._match(TokenType.ELSE): +3445 default = self._parse_conjunction() 3446 -3447 def _parse_if(self) -> t.Optional[exp.Expression]: -3448 if self._match(TokenType.L_PAREN): -3449 args = self._parse_csv(self._parse_conjunction) -3450 this = exp.If.from_arg_list(args) -3451 self.validate_expression(this, args) -3452 self._match_r_paren() -3453 else: -3454 condition = self._parse_conjunction() -3455 self._match(TokenType.THEN) -3456 true = self._parse_conjunction() -3457 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None -3458 self._match(TokenType.END) -3459 this = self.expression(exp.If, this=condition, true=true, false=false) -3460 -3461 return self._parse_window(this) -3462 -3463 def _parse_extract(self) -> exp.Expression: -3464 this = self._parse_function() or self._parse_var() or self._parse_type() -3465 -3466 if self._match(TokenType.FROM): -3467 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3468 -3469 if not self._match(TokenType.COMMA): -3470 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) -3471 -3472 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3447 if not self._match(TokenType.END): +3448 self.raise_error("Expected END after CASE", self._prev) +3449 +3450 return self._parse_window( +3451 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3452 ) +3453 +3454 def _parse_if(self) -> t.Optional[exp.Expression]: +3455 if self._match(TokenType.L_PAREN): +3456 args = self._parse_csv(self._parse_conjunction) +3457 this = exp.If.from_arg_list(args) +3458 self.validate_expression(this, args) +3459 self._match_r_paren() +3460 else: +3461 index = self._index - 1 +3462 condition = self._parse_conjunction() +3463 +3464 if not condition: +3465 self._retreat(index) +3466 return None +3467 +3468 self._match(TokenType.THEN) +3469 true = self._parse_conjunction() +3470 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3471 self._match(TokenType.END) +3472 this = self.expression(exp.If, this=condition, true=true, false=false) 3473 -3474 def _parse_cast(self, strict: bool) -> exp.Expression: -3475 this = self._parse_conjunction() -3476 -3477 if not self._match(TokenType.ALIAS): -3478 self.raise_error("Expected AS after CAST") -3479 -3480 to = self._parse_types() +3474 return self._parse_window(this) +3475 +3476 def _parse_extract(self) -> exp.Expression: +3477 this = self._parse_function() or self._parse_var() or self._parse_type() +3478 +3479 if self._match(TokenType.FROM): +3480 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) 3481 -3482 if not to: -3483 self.raise_error("Expected TYPE after CAST") -3484 elif to.this == exp.DataType.Type.CHAR: -3485 if self._match(TokenType.CHARACTER_SET): -3486 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) -3487 -3488 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3482 if not self._match(TokenType.COMMA): +3483 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3484 +3485 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3486 +3487 def _parse_cast(self, strict: bool) -> exp.Expression: +3488 this = self._parse_conjunction() 3489 -3490 def _parse_string_agg(self) -> exp.Expression: -3491 expression: t.Optional[exp.Expression] +3490 if not self._match(TokenType.ALIAS): +3491 self.raise_error("Expected AS after CAST") 3492 -3493 if self._match(TokenType.DISTINCT): -3494 args = self._parse_csv(self._parse_conjunction) -3495 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) -3496 else: -3497 args = self._parse_csv(self._parse_conjunction) -3498 expression = seq_get(args, 0) -3499 -3500 index = self._index -3501 if not self._match(TokenType.R_PAREN): -3502 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) -3503 order = self._parse_order(this=expression) -3504 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3493 to = self._parse_types() +3494 +3495 if not to: +3496 self.raise_error("Expected TYPE after CAST") +3497 elif to.this == exp.DataType.Type.CHAR: +3498 if self._match(TokenType.CHARACTER_SET): +3499 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) +3500 +3501 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3502 +3503 def _parse_string_agg(self) -> exp.Expression: +3504 expression: t.Optional[exp.Expression] 3505 -3506 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). -3507 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that -3508 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. -3509 if not self._match(TokenType.WITHIN_GROUP): -3510 self._retreat(index) -3511 this = exp.GroupConcat.from_arg_list(args) -3512 self.validate_expression(this, args) -3513 return this -3514 -3515 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) -3516 order = self._parse_order(this=expression) -3517 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3506 if self._match(TokenType.DISTINCT): +3507 args = self._parse_csv(self._parse_conjunction) +3508 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3509 else: +3510 args = self._parse_csv(self._parse_conjunction) +3511 expression = seq_get(args, 0) +3512 +3513 index = self._index +3514 if not self._match(TokenType.R_PAREN): +3515 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3516 order = self._parse_order(this=expression) +3517 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) 3518 -3519 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -3520 to: t.Optional[exp.Expression] -3521 this = self._parse_bitwise() -3522 -3523 if self._match(TokenType.USING): -3524 to = self.expression(exp.CharacterSet, this=self._parse_var()) -3525 elif self._match(TokenType.COMMA): -3526 to = self._parse_bitwise() -3527 else: -3528 to = None -3529 -3530 # Swap the argument order if needed to produce the correct AST -3531 if self.CONVERT_TYPE_FIRST: -3532 this, to = to, this -3533 -3534 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3519 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3520 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3521 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3522 if not self._match(TokenType.WITHIN_GROUP): +3523 self._retreat(index) +3524 this = exp.GroupConcat.from_arg_list(args) +3525 self.validate_expression(this, args) +3526 return this +3527 +3528 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3529 order = self._parse_order(this=expression) +3530 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3531 +3532 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3533 to: t.Optional[exp.Expression] +3534 this = self._parse_bitwise() 3535 -3536 def _parse_decode(self) -> t.Optional[exp.Expression]: -3537 """ -3538 There are generally two variants of the DECODE function: -3539 -3540 - DECODE(bin, charset) -3541 - DECODE(expression, search, result [, search, result] ... [, default]) +3536 if self._match(TokenType.USING): +3537 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3538 elif self._match(TokenType.COMMA): +3539 to = self._parse_bitwise() +3540 else: +3541 to = None 3542 -3543 The second variant will always be parsed into a CASE expression. Note that NULL -3544 needs special treatment, since we need to explicitly check for it with `IS NULL`, -3545 instead of relying on pattern matching. -3546 """ -3547 args = self._parse_csv(self._parse_conjunction) +3543 # Swap the argument order if needed to produce the correct AST +3544 if self.CONVERT_TYPE_FIRST: +3545 this, to = to, this +3546 +3547 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 3548 -3549 if len(args) < 3: -3550 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) -3551 -3552 expression, *expressions = args -3553 if not expression: -3554 return None +3549 def _parse_decode(self) -> t.Optional[exp.Expression]: +3550 """ +3551 There are generally two variants of the DECODE function: +3552 +3553 - DECODE(bin, charset) +3554 - DECODE(expression, search, result [, search, result] ... [, default]) 3555 -3556 ifs = [] -3557 for search, result in zip(expressions[::2], expressions[1::2]): -3558 if not search or not result: -3559 return None -3560 -3561 if isinstance(search, exp.Literal): -3562 ifs.append( -3563 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) -3564 ) -3565 elif isinstance(search, exp.Null): -3566 ifs.append( -3567 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) -3568 ) -3569 else: -3570 cond = exp.or_( -3571 exp.EQ(this=expression.copy(), expression=search), -3572 exp.and_( -3573 exp.Is(this=expression.copy(), expression=exp.Null()), -3574 exp.Is(this=search.copy(), expression=exp.Null()), -3575 ), -3576 ) -3577 ifs.append(exp.If(this=cond, true=result)) -3578 -3579 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) -3580 -3581 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: -3582 self._match_text_seq("KEY") -3583 key = self._parse_field() -3584 self._match(TokenType.COLON) -3585 self._match_text_seq("VALUE") -3586 value = self._parse_field() -3587 if not key and not value: -3588 return None -3589 return self.expression(exp.JSONKeyValue, this=key, expression=value) -3590 -3591 def _parse_json_object(self) -> exp.Expression: -3592 expressions = self._parse_csv(self._parse_json_key_value) +3556 The second variant will always be parsed into a CASE expression. Note that NULL +3557 needs special treatment, since we need to explicitly check for it with `IS NULL`, +3558 instead of relying on pattern matching. +3559 """ +3560 args = self._parse_csv(self._parse_conjunction) +3561 +3562 if len(args) < 3: +3563 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) +3564 +3565 expression, *expressions = args +3566 if not expression: +3567 return None +3568 +3569 ifs = [] +3570 for search, result in zip(expressions[::2], expressions[1::2]): +3571 if not search or not result: +3572 return None +3573 +3574 if isinstance(search, exp.Literal): +3575 ifs.append( +3576 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) +3577 ) +3578 elif isinstance(search, exp.Null): +3579 ifs.append( +3580 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) +3581 ) +3582 else: +3583 cond = exp.or_( +3584 exp.EQ(this=expression.copy(), expression=search), +3585 exp.and_( +3586 exp.Is(this=expression.copy(), expression=exp.Null()), +3587 exp.Is(this=search.copy(), expression=exp.Null()), +3588 copy=False, +3589 ), +3590 copy=False, +3591 ) +3592 ifs.append(exp.If(this=cond, true=result)) 3593 -3594 null_handling = None -3595 if self._match_text_seq("NULL", "ON", "NULL"): -3596 null_handling = "NULL ON NULL" -3597 elif self._match_text_seq("ABSENT", "ON", "NULL"): -3598 null_handling = "ABSENT ON NULL" -3599 -3600 unique_keys = None -3601 if self._match_text_seq("WITH", "UNIQUE"): -3602 unique_keys = True -3603 elif self._match_text_seq("WITHOUT", "UNIQUE"): -3604 unique_keys = False +3594 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) +3595 +3596 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: +3597 self._match_text_seq("KEY") +3598 key = self._parse_field() +3599 self._match(TokenType.COLON) +3600 self._match_text_seq("VALUE") +3601 value = self._parse_field() +3602 if not key and not value: +3603 return None +3604 return self.expression(exp.JSONKeyValue, this=key, expression=value) 3605 -3606 self._match_text_seq("KEYS") -3607 -3608 return_type = self._match_text_seq("RETURNING") and self._parse_type() -3609 format_json = self._match_text_seq("FORMAT", "JSON") -3610 encoding = self._match_text_seq("ENCODING") and self._parse_var() -3611 -3612 return self.expression( -3613 exp.JSONObject, -3614 expressions=expressions, -3615 null_handling=null_handling, -3616 unique_keys=unique_keys, -3617 return_type=return_type, -3618 format_json=format_json, -3619 encoding=encoding, -3620 ) -3621 -3622 def _parse_logarithm(self) -> exp.Expression: -3623 # Default argument order is base, expression -3624 args = self._parse_csv(self._parse_range) -3625 -3626 if len(args) > 1: -3627 if not self.LOG_BASE_FIRST: -3628 args.reverse() -3629 return exp.Log.from_arg_list(args) -3630 -3631 return self.expression( -3632 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) -3633 ) -3634 -3635 def _parse_match_against(self) -> exp.Expression: -3636 expressions = self._parse_csv(self._parse_column) -3637 -3638 self._match_text_seq(")", "AGAINST", "(") -3639 -3640 this = self._parse_string() -3641 -3642 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): -3643 modifier = "IN NATURAL LANGUAGE MODE" -3644 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): -3645 modifier = f"{modifier} WITH QUERY EXPANSION" -3646 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): -3647 modifier = "IN BOOLEAN MODE" -3648 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): -3649 modifier = "WITH QUERY EXPANSION" -3650 else: -3651 modifier = None +3606 def _parse_json_object(self) -> exp.Expression: +3607 expressions = self._parse_csv(self._parse_json_key_value) +3608 +3609 null_handling = None +3610 if self._match_text_seq("NULL", "ON", "NULL"): +3611 null_handling = "NULL ON NULL" +3612 elif self._match_text_seq("ABSENT", "ON", "NULL"): +3613 null_handling = "ABSENT ON NULL" +3614 +3615 unique_keys = None +3616 if self._match_text_seq("WITH", "UNIQUE"): +3617 unique_keys = True +3618 elif self._match_text_seq("WITHOUT", "UNIQUE"): +3619 unique_keys = False +3620 +3621 self._match_text_seq("KEYS") +3622 +3623 return_type = self._match_text_seq("RETURNING") and self._parse_type() +3624 format_json = self._match_text_seq("FORMAT", "JSON") +3625 encoding = self._match_text_seq("ENCODING") and self._parse_var() +3626 +3627 return self.expression( +3628 exp.JSONObject, +3629 expressions=expressions, +3630 null_handling=null_handling, +3631 unique_keys=unique_keys, +3632 return_type=return_type, +3633 format_json=format_json, +3634 encoding=encoding, +3635 ) +3636 +3637 def _parse_logarithm(self) -> exp.Expression: +3638 # Default argument order is base, expression +3639 args = self._parse_csv(self._parse_range) +3640 +3641 if len(args) > 1: +3642 if not self.LOG_BASE_FIRST: +3643 args.reverse() +3644 return exp.Log.from_arg_list(args) +3645 +3646 return self.expression( +3647 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) +3648 ) +3649 +3650 def _parse_match_against(self) -> exp.Expression: +3651 expressions = self._parse_csv(self._parse_column) 3652 -3653 return self.expression( -3654 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier -3655 ) +3653 self._match_text_seq(")", "AGAINST", "(") +3654 +3655 this = self._parse_string() 3656 -3657 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -3658 args = self._parse_csv(self._parse_bitwise) -3659 -3660 if self._match(TokenType.IN): -3661 return self.expression( -3662 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) -3663 ) -3664 -3665 if haystack_first: -3666 haystack = seq_get(args, 0) -3667 needle = seq_get(args, 1) -3668 else: -3669 needle = seq_get(args, 0) -3670 haystack = seq_get(args, 1) +3657 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): +3658 modifier = "IN NATURAL LANGUAGE MODE" +3659 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3660 modifier = f"{modifier} WITH QUERY EXPANSION" +3661 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): +3662 modifier = "IN BOOLEAN MODE" +3663 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3664 modifier = "WITH QUERY EXPANSION" +3665 else: +3666 modifier = None +3667 +3668 return self.expression( +3669 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier +3670 ) 3671 -3672 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) -3673 -3674 self.validate_expression(this, args) -3675 -3676 return this -3677 -3678 def _parse_join_hint(self, func_name: str) -> exp.Expression: -3679 args = self._parse_csv(self._parse_table) -3680 return exp.JoinHint(this=func_name.upper(), expressions=args) -3681 -3682 def _parse_substring(self) -> exp.Expression: -3683 # Postgres supports the form: substring(string [from int] [for int]) -3684 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 -3685 -3686 args = self._parse_csv(self._parse_bitwise) -3687 -3688 if self._match(TokenType.FROM): -3689 args.append(self._parse_bitwise()) -3690 if self._match(TokenType.FOR): -3691 args.append(self._parse_bitwise()) +3672 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +3673 args = self._parse_csv(self._parse_bitwise) +3674 +3675 if self._match(TokenType.IN): +3676 return self.expression( +3677 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) +3678 ) +3679 +3680 if haystack_first: +3681 haystack = seq_get(args, 0) +3682 needle = seq_get(args, 1) +3683 else: +3684 needle = seq_get(args, 0) +3685 haystack = seq_get(args, 1) +3686 +3687 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) +3688 +3689 self.validate_expression(this, args) +3690 +3691 return this 3692 -3693 this = exp.Substring.from_arg_list(args) -3694 self.validate_expression(this, args) -3695 -3696 return this -3697 -3698 def _parse_trim(self) -> exp.Expression: -3699 # https://www.w3resource.com/sql/character-functions/trim.php -3700 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html -3701 -3702 position = None -3703 collation = None -3704 -3705 if self._match_set(self.TRIM_TYPES): -3706 position = self._prev.text.upper() +3693 def _parse_join_hint(self, func_name: str) -> exp.Expression: +3694 args = self._parse_csv(self._parse_table) +3695 return exp.JoinHint(this=func_name.upper(), expressions=args) +3696 +3697 def _parse_substring(self) -> exp.Expression: +3698 # Postgres supports the form: substring(string [from int] [for int]) +3699 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3700 +3701 args = self._parse_csv(self._parse_bitwise) +3702 +3703 if self._match(TokenType.FROM): +3704 args.append(self._parse_bitwise()) +3705 if self._match(TokenType.FOR): +3706 args.append(self._parse_bitwise()) 3707 -3708 expression = self._parse_term() -3709 if self._match_set((TokenType.FROM, TokenType.COMMA)): -3710 this = self._parse_term() -3711 else: -3712 this = expression -3713 expression = None -3714 -3715 if self._match(TokenType.COLLATE): -3716 collation = self._parse_term() -3717 -3718 return self.expression( -3719 exp.Trim, -3720 this=this, -3721 position=position, -3722 expression=expression, -3723 collation=collation, -3724 ) -3725 -3726 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3727 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) -3728 -3729 def _parse_named_window(self) -> t.Optional[exp.Expression]: -3730 return self._parse_window(self._parse_id_var(), alias=True) -3731 -3732 def _parse_window( -3733 self, this: t.Optional[exp.Expression], alias: bool = False -3734 ) -> t.Optional[exp.Expression]: -3735 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): -3736 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) -3737 self._match_r_paren() -3738 -3739 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. -3740 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 -3741 if self._match(TokenType.WITHIN_GROUP): -3742 order = self._parse_wrapped(self._parse_order) -3743 this = self.expression(exp.WithinGroup, this=this, expression=order) -3744 -3745 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER -3746 # Some dialects choose to implement and some do not. -3747 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html -3748 -3749 # There is some code above in _parse_lambda that handles -3750 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... -3751 -3752 # The below changes handle -3753 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... -3754 -3755 # Oracle allows both formats -3756 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) -3757 # and Snowflake chose to do the same for familiarity -3758 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes -3759 if self._match(TokenType.IGNORE_NULLS): -3760 this = self.expression(exp.IgnoreNulls, this=this) -3761 elif self._match(TokenType.RESPECT_NULLS): -3762 this = self.expression(exp.RespectNulls, this=this) -3763 -3764 # bigquery select from window x AS (partition by ...) -3765 if alias: -3766 self._match(TokenType.ALIAS) -3767 elif not self._match(TokenType.OVER): -3768 return this -3769 -3770 if not self._match(TokenType.L_PAREN): -3771 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) +3708 this = exp.Substring.from_arg_list(args) +3709 self.validate_expression(this, args) +3710 +3711 return this +3712 +3713 def _parse_trim(self) -> exp.Expression: +3714 # https://www.w3resource.com/sql/character-functions/trim.php +3715 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html +3716 +3717 position = None +3718 collation = None +3719 +3720 if self._match_set(self.TRIM_TYPES): +3721 position = self._prev.text.upper() +3722 +3723 expression = self._parse_bitwise() +3724 if self._match_set((TokenType.FROM, TokenType.COMMA)): +3725 this = self._parse_bitwise() +3726 else: +3727 this = expression +3728 expression = None +3729 +3730 if self._match(TokenType.COLLATE): +3731 collation = self._parse_bitwise() +3732 +3733 return self.expression( +3734 exp.Trim, +3735 this=this, +3736 position=position, +3737 expression=expression, +3738 collation=collation, +3739 ) +3740 +3741 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3742 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) +3743 +3744 def _parse_named_window(self) -> t.Optional[exp.Expression]: +3745 return self._parse_window(self._parse_id_var(), alias=True) +3746 +3747 def _parse_respect_or_ignore_nulls( +3748 self, this: t.Optional[exp.Expression] +3749 ) -> t.Optional[exp.Expression]: +3750 if self._match(TokenType.IGNORE_NULLS): +3751 return self.expression(exp.IgnoreNulls, this=this) +3752 if self._match(TokenType.RESPECT_NULLS): +3753 return self.expression(exp.RespectNulls, this=this) +3754 return this +3755 +3756 def _parse_window( +3757 self, this: t.Optional[exp.Expression], alias: bool = False +3758 ) -> t.Optional[exp.Expression]: +3759 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): +3760 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) +3761 self._match_r_paren() +3762 +3763 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. +3764 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 +3765 if self._match(TokenType.WITHIN_GROUP): +3766 order = self._parse_wrapped(self._parse_order) +3767 this = self.expression(exp.WithinGroup, this=this, expression=order) +3768 +3769 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER +3770 # Some dialects choose to implement and some do not. +3771 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html 3772 -3773 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) -3774 partition = self._parse_partition_by() -3775 order = self._parse_order() -3776 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text -3777 -3778 if kind: -3779 self._match(TokenType.BETWEEN) -3780 start = self._parse_window_spec() -3781 self._match(TokenType.AND) -3782 end = self._parse_window_spec() -3783 -3784 spec = self.expression( -3785 exp.WindowSpec, -3786 kind=kind, -3787 start=start["value"], -3788 start_side=start["side"], -3789 end=end["value"], -3790 end_side=end["side"], -3791 ) -3792 else: -3793 spec = None -3794 -3795 self._match_r_paren() -3796 -3797 return self.expression( -3798 exp.Window, -3799 this=this, -3800 partition_by=partition, -3801 order=order, -3802 spec=spec, -3803 alias=window_alias, -3804 ) -3805 -3806 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: -3807 self._match(TokenType.BETWEEN) +3773 # There is some code above in _parse_lambda that handles +3774 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3775 +3776 # The below changes handle +3777 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... +3778 +3779 # Oracle allows both formats +3780 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) +3781 # and Snowflake chose to do the same for familiarity +3782 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes +3783 this = self._parse_respect_or_ignore_nulls(this) +3784 +3785 # bigquery select from window x AS (partition by ...) +3786 if alias: +3787 over = None +3788 self._match(TokenType.ALIAS) +3789 elif not self._match_set(self.WINDOW_BEFORE_PAREN_TOKENS): +3790 return this +3791 else: +3792 over = self._prev.text.upper() +3793 +3794 if not self._match(TokenType.L_PAREN): +3795 return self.expression( +3796 exp.Window, this=this, alias=self._parse_id_var(False), over=over +3797 ) +3798 +3799 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) +3800 +3801 first = self._match(TokenType.FIRST) +3802 if self._match_text_seq("LAST"): +3803 first = False +3804 +3805 partition = self._parse_partition_by() +3806 order = self._parse_order() +3807 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text 3808 -3809 return { -3810 "value": ( -3811 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text -3812 ) -3813 or self._parse_bitwise(), -3814 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, -3815 } -3816 -3817 def _parse_alias( -3818 self, this: t.Optional[exp.Expression], explicit: bool = False -3819 ) -> t.Optional[exp.Expression]: -3820 any_token = self._match(TokenType.ALIAS) -3821 -3822 if explicit and not any_token: -3823 return this -3824 -3825 if self._match(TokenType.L_PAREN): -3826 aliases = self.expression( -3827 exp.Aliases, -3828 this=this, -3829 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), -3830 ) -3831 self._match_r_paren(aliases) -3832 return aliases -3833 -3834 alias = self._parse_id_var(any_token) -3835 -3836 if alias: -3837 return self.expression(exp.Alias, this=this, alias=alias) +3809 if kind: +3810 self._match(TokenType.BETWEEN) +3811 start = self._parse_window_spec() +3812 self._match(TokenType.AND) +3813 end = self._parse_window_spec() +3814 +3815 spec = self.expression( +3816 exp.WindowSpec, +3817 kind=kind, +3818 start=start["value"], +3819 start_side=start["side"], +3820 end=end["value"], +3821 end_side=end["side"], +3822 ) +3823 else: +3824 spec = None +3825 +3826 self._match_r_paren() +3827 +3828 return self.expression( +3829 exp.Window, +3830 this=this, +3831 partition_by=partition, +3832 order=order, +3833 spec=spec, +3834 alias=window_alias, +3835 over=over, +3836 first=first, +3837 ) 3838 -3839 return this -3840 -3841 def _parse_id_var( -3842 self, -3843 any_token: bool = True, -3844 tokens: t.Optional[t.Collection[TokenType]] = None, -3845 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, -3846 ) -> t.Optional[exp.Expression]: -3847 identifier = self._parse_identifier() -3848 -3849 if identifier: -3850 return identifier -3851 -3852 prefix = "" -3853 -3854 if prefix_tokens: -3855 while self._match_set(prefix_tokens): -3856 prefix += self._prev.text +3839 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: +3840 self._match(TokenType.BETWEEN) +3841 +3842 return { +3843 "value": ( +3844 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text +3845 ) +3846 or self._parse_bitwise(), +3847 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, +3848 } +3849 +3850 def _parse_alias( +3851 self, this: t.Optional[exp.Expression], explicit: bool = False +3852 ) -> t.Optional[exp.Expression]: +3853 any_token = self._match(TokenType.ALIAS) +3854 +3855 if explicit and not any_token: +3856 return this 3857 -3858 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): -3859 quoted = self._prev.token_type == TokenType.STRING -3860 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) -3861 -3862 return None -3863 -3864 def _parse_string(self) -> t.Optional[exp.Expression]: -3865 if self._match(TokenType.STRING): -3866 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) -3867 return self._parse_placeholder() +3858 if self._match(TokenType.L_PAREN): +3859 aliases = self.expression( +3860 exp.Aliases, +3861 this=this, +3862 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), +3863 ) +3864 self._match_r_paren(aliases) +3865 return aliases +3866 +3867 alias = self._parse_id_var(any_token) 3868 -3869 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: -3870 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3869 if alias: +3870 return self.expression(exp.Alias, this=this, alias=alias) 3871 -3872 def _parse_number(self) -> t.Optional[exp.Expression]: -3873 if self._match(TokenType.NUMBER): -3874 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) -3875 return self._parse_placeholder() -3876 -3877 def _parse_identifier(self) -> t.Optional[exp.Expression]: -3878 if self._match(TokenType.IDENTIFIER): -3879 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) -3880 return self._parse_placeholder() +3872 return this +3873 +3874 def _parse_id_var( +3875 self, +3876 any_token: bool = True, +3877 tokens: t.Optional[t.Collection[TokenType]] = None, +3878 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, +3879 ) -> t.Optional[exp.Expression]: +3880 identifier = self._parse_identifier() 3881 -3882 def _parse_var( -3883 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None -3884 ) -> t.Optional[exp.Expression]: -3885 if ( -3886 (any_token and self._advance_any()) -3887 or self._match(TokenType.VAR) -3888 or (self._match_set(tokens) if tokens else False) -3889 ): -3890 return self.expression(exp.Var, this=self._prev.text) -3891 return self._parse_placeholder() -3892 -3893 def _advance_any(self) -> t.Optional[Token]: -3894 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: -3895 self._advance() -3896 return self._prev -3897 return None -3898 -3899 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: -3900 return self._parse_var() or self._parse_string() +3882 if identifier: +3883 return identifier +3884 +3885 prefix = "" +3886 +3887 if prefix_tokens: +3888 while self._match_set(prefix_tokens): +3889 prefix += self._prev.text +3890 +3891 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): +3892 quoted = self._prev.token_type == TokenType.STRING +3893 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3894 +3895 return None +3896 +3897 def _parse_string(self) -> t.Optional[exp.Expression]: +3898 if self._match(TokenType.STRING): +3899 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) +3900 return self._parse_placeholder() 3901 -3902 def _parse_null(self) -> t.Optional[exp.Expression]: -3903 if self._match(TokenType.NULL): -3904 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) -3905 return None -3906 -3907 def _parse_boolean(self) -> t.Optional[exp.Expression]: -3908 if self._match(TokenType.TRUE): -3909 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) -3910 if self._match(TokenType.FALSE): -3911 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) -3912 return None -3913 -3914 def _parse_star(self) -> t.Optional[exp.Expression]: -3915 if self._match(TokenType.STAR): -3916 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) -3917 return None -3918 -3919 def _parse_parameter(self) -> exp.Expression: -3920 wrapped = self._match(TokenType.L_BRACE) -3921 this = self._parse_var() or self._parse_primary() -3922 self._match(TokenType.R_BRACE) -3923 return self.expression(exp.Parameter, this=this, wrapped=wrapped) -3924 -3925 def _parse_placeholder(self) -> t.Optional[exp.Expression]: -3926 if self._match_set(self.PLACEHOLDER_PARSERS): -3927 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) -3928 if placeholder: -3929 return placeholder -3930 self._advance(-1) -3931 return None -3932 -3933 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3934 if not self._match(TokenType.EXCEPT): -3935 return None -3936 if self._match(TokenType.L_PAREN, advance=False): -3937 return self._parse_wrapped_csv(self._parse_column) -3938 return self._parse_csv(self._parse_column) +3902 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: +3903 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3904 +3905 def _parse_number(self) -> t.Optional[exp.Expression]: +3906 if self._match(TokenType.NUMBER): +3907 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) +3908 return self._parse_placeholder() +3909 +3910 def _parse_identifier(self) -> t.Optional[exp.Expression]: +3911 if self._match(TokenType.IDENTIFIER): +3912 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) +3913 return self._parse_placeholder() +3914 +3915 def _parse_var( +3916 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None +3917 ) -> t.Optional[exp.Expression]: +3918 if ( +3919 (any_token and self._advance_any()) +3920 or self._match(TokenType.VAR) +3921 or (self._match_set(tokens) if tokens else False) +3922 ): +3923 return self.expression(exp.Var, this=self._prev.text) +3924 return self._parse_placeholder() +3925 +3926 def _advance_any(self) -> t.Optional[Token]: +3927 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: +3928 self._advance() +3929 return self._prev +3930 return None +3931 +3932 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: +3933 return self._parse_var() or self._parse_string() +3934 +3935 def _parse_null(self) -> t.Optional[exp.Expression]: +3936 if self._match(TokenType.NULL): +3937 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) +3938 return None 3939 -3940 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3941 if not self._match(TokenType.REPLACE): -3942 return None -3943 if self._match(TokenType.L_PAREN, advance=False): -3944 return self._parse_wrapped_csv(self._parse_expression) -3945 return self._parse_csv(self._parse_expression) +3940 def _parse_boolean(self) -> t.Optional[exp.Expression]: +3941 if self._match(TokenType.TRUE): +3942 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) +3943 if self._match(TokenType.FALSE): +3944 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) +3945 return None 3946 -3947 def _parse_csv( -3948 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3949 ) -> t.List[t.Optional[exp.Expression]]: -3950 parse_result = parse_method() -3951 items = [parse_result] if parse_result is not None else [] -3952 -3953 while self._match(sep): -3954 if parse_result and self._prev_comments: -3955 parse_result.comments = self._prev_comments -3956 -3957 parse_result = parse_method() -3958 if parse_result is not None: -3959 items.append(parse_result) -3960 -3961 return items -3962 -3963 def _parse_tokens( -3964 self, parse_method: t.Callable, expressions: t.Dict -3965 ) -> t.Optional[exp.Expression]: -3966 this = parse_method() -3967 -3968 while self._match_set(expressions): -3969 this = self.expression( -3970 expressions[self._prev.token_type], -3971 this=this, -3972 comments=self._prev_comments, -3973 expression=parse_method(), -3974 ) -3975 -3976 return this -3977 -3978 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: -3979 return self._parse_wrapped_csv(self._parse_id_var) -3980 -3981 def _parse_wrapped_csv( -3982 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3983 ) -> t.List[t.Optional[exp.Expression]]: -3984 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +3947 def _parse_star(self) -> t.Optional[exp.Expression]: +3948 if self._match(TokenType.STAR): +3949 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) +3950 return None +3951 +3952 def _parse_parameter(self) -> exp.Expression: +3953 wrapped = self._match(TokenType.L_BRACE) +3954 this = self._parse_var() or self._parse_primary() +3955 self._match(TokenType.R_BRACE) +3956 return self.expression(exp.Parameter, this=this, wrapped=wrapped) +3957 +3958 def _parse_placeholder(self) -> t.Optional[exp.Expression]: +3959 if self._match_set(self.PLACEHOLDER_PARSERS): +3960 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) +3961 if placeholder: +3962 return placeholder +3963 self._advance(-1) +3964 return None +3965 +3966 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3967 if not self._match(TokenType.EXCEPT): +3968 return None +3969 if self._match(TokenType.L_PAREN, advance=False): +3970 return self._parse_wrapped_csv(self._parse_column) +3971 return self._parse_csv(self._parse_column) +3972 +3973 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3974 if not self._match(TokenType.REPLACE): +3975 return None +3976 if self._match(TokenType.L_PAREN, advance=False): +3977 return self._parse_wrapped_csv(self._parse_expression) +3978 return self._parse_csv(self._parse_expression) +3979 +3980 def _parse_csv( +3981 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3982 ) -> t.List[t.Optional[exp.Expression]]: +3983 parse_result = parse_method() +3984 items = [parse_result] if parse_result is not None else [] 3985 -3986 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: -3987 self._match_l_paren() -3988 parse_result = parse_method() -3989 self._match_r_paren() -3990 return parse_result -3991 -3992 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: -3993 return self._parse_select() or self._parse_set_operations(self._parse_expression()) -3994 -3995 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: -3996 return self._parse_set_operations( -3997 self._parse_select(nested=True, parse_subquery_alias=False) -3998 ) -3999 -4000 def _parse_transaction(self) -> exp.Expression: -4001 this = None -4002 if self._match_texts(self.TRANSACTION_KIND): -4003 this = self._prev.text -4004 -4005 self._match_texts({"TRANSACTION", "WORK"}) -4006 -4007 modes = [] -4008 while True: -4009 mode = [] -4010 while self._match(TokenType.VAR): -4011 mode.append(self._prev.text) -4012 -4013 if mode: -4014 modes.append(" ".join(mode)) -4015 if not self._match(TokenType.COMMA): -4016 break -4017 -4018 return self.expression(exp.Transaction, this=this, modes=modes) -4019 -4020 def _parse_commit_or_rollback(self) -> exp.Expression: -4021 chain = None -4022 savepoint = None -4023 is_rollback = self._prev.token_type == TokenType.ROLLBACK +3986 while self._match(sep): +3987 if parse_result and self._prev_comments: +3988 parse_result.comments = self._prev_comments +3989 +3990 parse_result = parse_method() +3991 if parse_result is not None: +3992 items.append(parse_result) +3993 +3994 return items +3995 +3996 def _parse_tokens( +3997 self, parse_method: t.Callable, expressions: t.Dict +3998 ) -> t.Optional[exp.Expression]: +3999 this = parse_method() +4000 +4001 while self._match_set(expressions): +4002 this = self.expression( +4003 expressions[self._prev.token_type], +4004 this=this, +4005 comments=self._prev_comments, +4006 expression=parse_method(), +4007 ) +4008 +4009 return this +4010 +4011 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: +4012 return self._parse_wrapped_csv(self._parse_id_var) +4013 +4014 def _parse_wrapped_csv( +4015 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +4016 ) -> t.List[t.Optional[exp.Expression]]: +4017 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +4018 +4019 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: +4020 self._match_l_paren() +4021 parse_result = parse_method() +4022 self._match_r_paren() +4023 return parse_result 4024 -4025 self._match_texts({"TRANSACTION", "WORK"}) -4026 -4027 if self._match_text_seq("TO"): -4028 self._match_text_seq("SAVEPOINT") -4029 savepoint = self._parse_id_var() -4030 -4031 if self._match(TokenType.AND): -4032 chain = not self._match_text_seq("NO") -4033 self._match_text_seq("CHAIN") -4034 -4035 if is_rollback: -4036 return self.expression(exp.Rollback, savepoint=savepoint) -4037 return self.expression(exp.Commit, chain=chain) -4038 -4039 def _parse_add_column(self) -> t.Optional[exp.Expression]: -4040 if not self._match_text_seq("ADD"): -4041 return None -4042 -4043 self._match(TokenType.COLUMN) -4044 exists_column = self._parse_exists(not_=True) -4045 expression = self._parse_column_def(self._parse_field(any_token=True)) -4046 -4047 if expression: -4048 expression.set("exists", exists_column) -4049 -4050 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns -4051 if self._match_texts(("FIRST", "AFTER")): -4052 position = self._prev.text -4053 column_position = self.expression( -4054 exp.ColumnPosition, this=self._parse_column(), position=position -4055 ) -4056 expression.set("position", column_position) +4025 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: +4026 return self._parse_select() or self._parse_set_operations(self._parse_expression()) +4027 +4028 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: +4029 return self._parse_set_operations( +4030 self._parse_select(nested=True, parse_subquery_alias=False) +4031 ) +4032 +4033 def _parse_transaction(self) -> exp.Expression: +4034 this = None +4035 if self._match_texts(self.TRANSACTION_KIND): +4036 this = self._prev.text +4037 +4038 self._match_texts({"TRANSACTION", "WORK"}) +4039 +4040 modes = [] +4041 while True: +4042 mode = [] +4043 while self._match(TokenType.VAR): +4044 mode.append(self._prev.text) +4045 +4046 if mode: +4047 modes.append(" ".join(mode)) +4048 if not self._match(TokenType.COMMA): +4049 break +4050 +4051 return self.expression(exp.Transaction, this=this, modes=modes) +4052 +4053 def _parse_commit_or_rollback(self) -> exp.Expression: +4054 chain = None +4055 savepoint = None +4056 is_rollback = self._prev.token_type == TokenType.ROLLBACK 4057 -4058 return expression +4058 self._match_texts({"TRANSACTION", "WORK"}) 4059 -4060 def _parse_drop_column(self) -> t.Optional[exp.Expression]: -4061 drop = self._match(TokenType.DROP) and self._parse_drop() -4062 if drop and not isinstance(drop, exp.Command): -4063 drop.set("kind", drop.args.get("kind", "COLUMN")) -4064 return drop -4065 -4066 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html -4067 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: -4068 return self.expression( -4069 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists -4070 ) +4060 if self._match_text_seq("TO"): +4061 self._match_text_seq("SAVEPOINT") +4062 savepoint = self._parse_id_var() +4063 +4064 if self._match(TokenType.AND): +4065 chain = not self._match_text_seq("NO") +4066 self._match_text_seq("CHAIN") +4067 +4068 if is_rollback: +4069 return self.expression(exp.Rollback, savepoint=savepoint) +4070 return self.expression(exp.Commit, chain=chain) 4071 -4072 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: -4073 this = None -4074 kind = self._prev.token_type +4072 def _parse_add_column(self) -> t.Optional[exp.Expression]: +4073 if not self._match_text_seq("ADD"): +4074 return None 4075 -4076 if kind == TokenType.CONSTRAINT: -4077 this = self._parse_id_var() -4078 -4079 if self._match_text_seq("CHECK"): -4080 expression = self._parse_wrapped(self._parse_conjunction) -4081 enforced = self._match_text_seq("ENFORCED") +4076 self._match(TokenType.COLUMN) +4077 exists_column = self._parse_exists(not_=True) +4078 expression = self._parse_column_def(self._parse_field(any_token=True)) +4079 +4080 if expression: +4081 expression.set("exists", exists_column) 4082 -4083 return self.expression( -4084 exp.AddConstraint, this=this, expression=expression, enforced=enforced -4085 ) -4086 -4087 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): -4088 expression = self._parse_foreign_key() -4089 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): -4090 expression = self._parse_primary_key() -4091 else: -4092 expression = None -4093 -4094 return self.expression(exp.AddConstraint, this=this, expression=expression) -4095 -4096 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: -4097 index = self._index - 1 +4083 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns +4084 if self._match_texts(("FIRST", "AFTER")): +4085 position = self._prev.text +4086 column_position = self.expression( +4087 exp.ColumnPosition, this=self._parse_column(), position=position +4088 ) +4089 expression.set("position", column_position) +4090 +4091 return expression +4092 +4093 def _parse_drop_column(self) -> t.Optional[exp.Expression]: +4094 drop = self._match(TokenType.DROP) and self._parse_drop() +4095 if drop and not isinstance(drop, exp.Command): +4096 drop.set("kind", drop.args.get("kind", "COLUMN")) +4097 return drop 4098 -4099 if self._match_set(self.ADD_CONSTRAINT_TOKENS): -4100 return self._parse_csv(self._parse_add_constraint) -4101 -4102 self._retreat(index) -4103 return self._parse_csv(self._parse_add_column) +4099 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html +4100 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: +4101 return self.expression( +4102 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists +4103 ) 4104 -4105 def _parse_alter_table_alter(self) -> exp.Expression: -4106 self._match(TokenType.COLUMN) -4107 column = self._parse_field(any_token=True) +4105 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: +4106 this = None +4107 kind = self._prev.token_type 4108 -4109 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): -4110 return self.expression(exp.AlterColumn, this=column, drop=True) -4111 if self._match_pair(TokenType.SET, TokenType.DEFAULT): -4112 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) -4113 -4114 self._match_text_seq("SET", "DATA") -4115 return self.expression( -4116 exp.AlterColumn, -4117 this=column, -4118 dtype=self._match_text_seq("TYPE") and self._parse_types(), -4119 collate=self._match(TokenType.COLLATE) and self._parse_term(), -4120 using=self._match(TokenType.USING) and self._parse_conjunction(), -4121 ) -4122 -4123 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: -4124 index = self._index - 1 -4125 -4126 partition_exists = self._parse_exists() -4127 if self._match(TokenType.PARTITION, advance=False): -4128 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) -4129 -4130 self._retreat(index) -4131 return self._parse_csv(self._parse_drop_column) -4132 -4133 def _parse_alter_table_rename(self) -> exp.Expression: -4134 self._match_text_seq("TO") -4135 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) -4136 -4137 def _parse_alter(self) -> t.Optional[exp.Expression]: -4138 start = self._prev -4139 -4140 if not self._match(TokenType.TABLE): -4141 return self._parse_as_command(start) -4142 -4143 exists = self._parse_exists() -4144 this = self._parse_table(schema=True) -4145 -4146 if self._next: -4147 self._advance() -4148 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None -4149 -4150 if parser: -4151 actions = ensure_list(parser(self)) -4152 -4153 if not self._curr: -4154 return self.expression( -4155 exp.AlterTable, -4156 this=this, -4157 exists=exists, -4158 actions=actions, -4159 ) -4160 return self._parse_as_command(start) -4161 -4162 def _parse_merge(self) -> exp.Expression: -4163 self._match(TokenType.INTO) -4164 target = self._parse_table() +4109 if kind == TokenType.CONSTRAINT: +4110 this = self._parse_id_var() +4111 +4112 if self._match_text_seq("CHECK"): +4113 expression = self._parse_wrapped(self._parse_conjunction) +4114 enforced = self._match_text_seq("ENFORCED") +4115 +4116 return self.expression( +4117 exp.AddConstraint, this=this, expression=expression, enforced=enforced +4118 ) +4119 +4120 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): +4121 expression = self._parse_foreign_key() +4122 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): +4123 expression = self._parse_primary_key() +4124 else: +4125 expression = None +4126 +4127 return self.expression(exp.AddConstraint, this=this, expression=expression) +4128 +4129 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: +4130 index = self._index - 1 +4131 +4132 if self._match_set(self.ADD_CONSTRAINT_TOKENS): +4133 return self._parse_csv(self._parse_add_constraint) +4134 +4135 self._retreat(index) +4136 return self._parse_csv(self._parse_add_column) +4137 +4138 def _parse_alter_table_alter(self) -> exp.Expression: +4139 self._match(TokenType.COLUMN) +4140 column = self._parse_field(any_token=True) +4141 +4142 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): +4143 return self.expression(exp.AlterColumn, this=column, drop=True) +4144 if self._match_pair(TokenType.SET, TokenType.DEFAULT): +4145 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) +4146 +4147 self._match_text_seq("SET", "DATA") +4148 return self.expression( +4149 exp.AlterColumn, +4150 this=column, +4151 dtype=self._match_text_seq("TYPE") and self._parse_types(), +4152 collate=self._match(TokenType.COLLATE) and self._parse_term(), +4153 using=self._match(TokenType.USING) and self._parse_conjunction(), +4154 ) +4155 +4156 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: +4157 index = self._index - 1 +4158 +4159 partition_exists = self._parse_exists() +4160 if self._match(TokenType.PARTITION, advance=False): +4161 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) +4162 +4163 self._retreat(index) +4164 return self._parse_csv(self._parse_drop_column) 4165 -4166 self._match(TokenType.USING) -4167 using = self._parse_table() -4168 -4169 self._match(TokenType.ON) -4170 on = self._parse_conjunction() -4171 -4172 whens = [] -4173 while self._match(TokenType.WHEN): -4174 matched = not self._match(TokenType.NOT) -4175 self._match_text_seq("MATCHED") -4176 source = ( -4177 False -4178 if self._match_text_seq("BY", "TARGET") -4179 else self._match_text_seq("BY", "SOURCE") -4180 ) -4181 condition = self._parse_conjunction() if self._match(TokenType.AND) else None +4166 def _parse_alter_table_rename(self) -> exp.Expression: +4167 self._match_text_seq("TO") +4168 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +4169 +4170 def _parse_alter(self) -> t.Optional[exp.Expression]: +4171 start = self._prev +4172 +4173 if not self._match(TokenType.TABLE): +4174 return self._parse_as_command(start) +4175 +4176 exists = self._parse_exists() +4177 this = self._parse_table(schema=True) +4178 +4179 if self._next: +4180 self._advance() +4181 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None 4182 -4183 self._match(TokenType.THEN) -4184 -4185 if self._match(TokenType.INSERT): -4186 _this = self._parse_star() -4187 if _this: -4188 then: t.Optional[exp.Expression] = self.expression(exp.Insert, this=_this) -4189 else: -4190 then = self.expression( -4191 exp.Insert, -4192 this=self._parse_value(), -4193 expression=self._match(TokenType.VALUES) and self._parse_value(), -4194 ) -4195 elif self._match(TokenType.UPDATE): -4196 expressions = self._parse_star() -4197 if expressions: -4198 then = self.expression(exp.Update, expressions=expressions) -4199 else: -4200 then = self.expression( -4201 exp.Update, -4202 expressions=self._match(TokenType.SET) -4203 and self._parse_csv(self._parse_equality), -4204 ) -4205 elif self._match(TokenType.DELETE): -4206 then = self.expression(exp.Var, this=self._prev.text) -4207 else: -4208 then = None -4209 -4210 whens.append( -4211 self.expression( -4212 exp.When, -4213 matched=matched, -4214 source=source, -4215 condition=condition, -4216 then=then, -4217 ) -4218 ) -4219 -4220 return self.expression( -4221 exp.Merge, -4222 this=target, -4223 using=using, -4224 on=on, -4225 expressions=whens, -4226 ) -4227 -4228 def _parse_show(self) -> t.Optional[exp.Expression]: -4229 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore -4230 if parser: -4231 return parser(self) -4232 self._advance() -4233 return self.expression(exp.Show, this=self._prev.text.upper()) -4234 -4235 def _parse_set_item_assignment( -4236 self, kind: t.Optional[str] = None -4237 ) -> t.Optional[exp.Expression]: -4238 index = self._index -4239 -4240 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): -4241 return self._parse_set_transaction(global_=kind == "GLOBAL") +4183 if parser: +4184 actions = ensure_list(parser(self)) +4185 +4186 if not self._curr: +4187 return self.expression( +4188 exp.AlterTable, +4189 this=this, +4190 exists=exists, +4191 actions=actions, +4192 ) +4193 return self._parse_as_command(start) +4194 +4195 def _parse_merge(self) -> exp.Expression: +4196 self._match(TokenType.INTO) +4197 target = self._parse_table() +4198 +4199 self._match(TokenType.USING) +4200 using = self._parse_table() +4201 +4202 self._match(TokenType.ON) +4203 on = self._parse_conjunction() +4204 +4205 whens = [] +4206 while self._match(TokenType.WHEN): +4207 matched = not self._match(TokenType.NOT) +4208 self._match_text_seq("MATCHED") +4209 source = ( +4210 False +4211 if self._match_text_seq("BY", "TARGET") +4212 else self._match_text_seq("BY", "SOURCE") +4213 ) +4214 condition = self._parse_conjunction() if self._match(TokenType.AND) else None +4215 +4216 self._match(TokenType.THEN) +4217 +4218 if self._match(TokenType.INSERT): +4219 _this = self._parse_star() +4220 if _this: +4221 then: t.Optional[exp.Expression] = self.expression(exp.Insert, this=_this) +4222 else: +4223 then = self.expression( +4224 exp.Insert, +4225 this=self._parse_value(), +4226 expression=self._match(TokenType.VALUES) and self._parse_value(), +4227 ) +4228 elif self._match(TokenType.UPDATE): +4229 expressions = self._parse_star() +4230 if expressions: +4231 then = self.expression(exp.Update, expressions=expressions) +4232 else: +4233 then = self.expression( +4234 exp.Update, +4235 expressions=self._match(TokenType.SET) +4236 and self._parse_csv(self._parse_equality), +4237 ) +4238 elif self._match(TokenType.DELETE): +4239 then = self.expression(exp.Var, this=self._prev.text) +4240 else: +4241 then = None 4242 -4243 left = self._parse_primary() or self._parse_id_var() -4244 -4245 if not self._match_texts(("=", "TO")): -4246 self._retreat(index) -4247 return None -4248 -4249 right = self._parse_statement() or self._parse_id_var() -4250 this = self.expression( -4251 exp.EQ, -4252 this=left, -4253 expression=right, -4254 ) -4255 -4256 return self.expression( -4257 exp.SetItem, -4258 this=this, -4259 kind=kind, -4260 ) -4261 -4262 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: -4263 self._match_text_seq("TRANSACTION") -4264 characteristics = self._parse_csv( -4265 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) -4266 ) -4267 return self.expression( -4268 exp.SetItem, -4269 expressions=characteristics, -4270 kind="TRANSACTION", -4271 **{"global": global_}, # type: ignore -4272 ) -4273 -4274 def _parse_set_item(self) -> t.Optional[exp.Expression]: -4275 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore -4276 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4243 whens.append( +4244 self.expression( +4245 exp.When, +4246 matched=matched, +4247 source=source, +4248 condition=condition, +4249 then=then, +4250 ) +4251 ) +4252 +4253 return self.expression( +4254 exp.Merge, +4255 this=target, +4256 using=using, +4257 on=on, +4258 expressions=whens, +4259 ) +4260 +4261 def _parse_show(self) -> t.Optional[exp.Expression]: +4262 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore +4263 if parser: +4264 return parser(self) +4265 self._advance() +4266 return self.expression(exp.Show, this=self._prev.text.upper()) +4267 +4268 def _parse_set_item_assignment( +4269 self, kind: t.Optional[str] = None +4270 ) -> t.Optional[exp.Expression]: +4271 index = self._index +4272 +4273 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): +4274 return self._parse_set_transaction(global_=kind == "GLOBAL") +4275 +4276 left = self._parse_primary() or self._parse_id_var() 4277 -4278 def _parse_set(self) -> exp.Expression: -4279 index = self._index -4280 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4278 if not self._match_texts(("=", "TO")): +4279 self._retreat(index) +4280 return None 4281 -4282 if self._curr: -4283 self._retreat(index) -4284 return self._parse_as_command(self._prev) -4285 -4286 return set_ -4287 -4288 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: -4289 for option in options: -4290 if self._match_text_seq(*option.split(" ")): -4291 return exp.Var(this=option) -4292 return None -4293 -4294 def _parse_as_command(self, start: Token) -> exp.Command: -4295 while self._curr: -4296 self._advance() -4297 text = self._find_sql(start, self._prev) -4298 size = len(start.text) -4299 return exp.Command(this=text[:size], expression=text[size:]) -4300 -4301 def _find_parser( -4302 self, parsers: t.Dict[str, t.Callable], trie: t.Dict -4303 ) -> t.Optional[t.Callable]: -4304 if not self._curr: -4305 return None +4282 right = self._parse_statement() or self._parse_id_var() +4283 this = self.expression( +4284 exp.EQ, +4285 this=left, +4286 expression=right, +4287 ) +4288 +4289 return self.expression( +4290 exp.SetItem, +4291 this=this, +4292 kind=kind, +4293 ) +4294 +4295 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: +4296 self._match_text_seq("TRANSACTION") +4297 characteristics = self._parse_csv( +4298 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) +4299 ) +4300 return self.expression( +4301 exp.SetItem, +4302 expressions=characteristics, +4303 kind="TRANSACTION", +4304 **{"global": global_}, # type: ignore +4305 ) 4306 -4307 index = self._index -4308 this = [] -4309 while True: -4310 # The current token might be multiple words -4311 curr = self._curr.text.upper() -4312 key = curr.split(" ") -4313 this.append(curr) -4314 self._advance() -4315 result, trie = in_trie(trie, key) -4316 if result == 0: -4317 break -4318 if result == 2: -4319 subparser = parsers[" ".join(this)] -4320 return subparser -4321 self._retreat(index) -4322 return None -4323 -4324 def _match(self, token_type, advance=True): -4325 if not self._curr: -4326 return None -4327 -4328 if self._curr.token_type == token_type: -4329 if advance: -4330 self._advance() -4331 return True -4332 -4333 return None -4334 -4335 def _match_set(self, types, advance=True): -4336 if not self._curr: -4337 return None -4338 -4339 if self._curr.token_type in types: -4340 if advance: -4341 self._advance() -4342 return True -4343 -4344 return None -4345 -4346 def _match_pair(self, token_type_a, token_type_b, advance=True): -4347 if not self._curr or not self._next: -4348 return None -4349 -4350 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: -4351 if advance: -4352 self._advance(2) -4353 return True -4354 +4307 def _parse_set_item(self) -> t.Optional[exp.Expression]: +4308 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore +4309 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4310 +4311 def _parse_set(self) -> exp.Expression: +4312 index = self._index +4313 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4314 +4315 if self._curr: +4316 self._retreat(index) +4317 return self._parse_as_command(self._prev) +4318 +4319 return set_ +4320 +4321 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: +4322 for option in options: +4323 if self._match_text_seq(*option.split(" ")): +4324 return exp.Var(this=option) +4325 return None +4326 +4327 def _parse_as_command(self, start: Token) -> exp.Command: +4328 while self._curr: +4329 self._advance() +4330 text = self._find_sql(start, self._prev) +4331 size = len(start.text) +4332 return exp.Command(this=text[:size], expression=text[size:]) +4333 +4334 def _find_parser( +4335 self, parsers: t.Dict[str, t.Callable], trie: t.Dict +4336 ) -> t.Optional[t.Callable]: +4337 if not self._curr: +4338 return None +4339 +4340 index = self._index +4341 this = [] +4342 while True: +4343 # The current token might be multiple words +4344 curr = self._curr.text.upper() +4345 key = curr.split(" ") +4346 this.append(curr) +4347 self._advance() +4348 result, trie = in_trie(trie, key) +4349 if result == 0: +4350 break +4351 if result == 2: +4352 subparser = parsers[" ".join(this)] +4353 return subparser +4354 self._retreat(index) 4355 return None 4356 -4357 def _match_l_paren(self, expression=None): -4358 if not self._match(TokenType.L_PAREN): -4359 self.raise_error("Expecting (") -4360 if expression and self._prev_comments: -4361 expression.comments = self._prev_comments -4362 -4363 def _match_r_paren(self, expression=None): -4364 if not self._match(TokenType.R_PAREN): -4365 self.raise_error("Expecting )") -4366 if expression and self._prev_comments: -4367 expression.comments = self._prev_comments -4368 -4369 def _match_texts(self, texts, advance=True): -4370 if self._curr and self._curr.text.upper() in texts: -4371 if advance: -4372 self._advance() -4373 return True -4374 return False -4375 -4376 def _match_text_seq(self, *texts, advance=True): -4377 index = self._index -4378 for text in texts: -4379 if self._curr and self._curr.text.upper() == text: -4380 self._advance() -4381 else: -4382 self._retreat(index) -4383 return False -4384 -4385 if not advance: -4386 self._retreat(index) +4357 def _match(self, token_type, advance=True): +4358 if not self._curr: +4359 return None +4360 +4361 if self._curr.token_type == token_type: +4362 if advance: +4363 self._advance() +4364 return True +4365 +4366 return None +4367 +4368 def _match_set(self, types, advance=True): +4369 if not self._curr: +4370 return None +4371 +4372 if self._curr.token_type in types: +4373 if advance: +4374 self._advance() +4375 return True +4376 +4377 return None +4378 +4379 def _match_pair(self, token_type_a, token_type_b, advance=True): +4380 if not self._curr or not self._next: +4381 return None +4382 +4383 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: +4384 if advance: +4385 self._advance(2) +4386 return True 4387 -4388 return True +4388 return None 4389 -4390 def _replace_columns_with_dots(self, this): -4391 if isinstance(this, exp.Dot): -4392 exp.replace_children(this, self._replace_columns_with_dots) -4393 elif isinstance(this, exp.Column): -4394 exp.replace_children(this, self._replace_columns_with_dots) -4395 table = this.args.get("table") -4396 this = ( -4397 self.expression(exp.Dot, this=table, expression=this.this) -4398 if table -4399 else self.expression(exp.Var, this=this.name) -4400 ) -4401 elif isinstance(this, exp.Identifier): -4402 this = self.expression(exp.Var, this=this.name) -4403 return this -4404 -4405 def _replace_lambda(self, node, lambda_variables): -4406 for column in node.find_all(exp.Column): -4407 if column.parts[0].name in lambda_variables: -4408 dot_or_id = column.to_dot() if column.table else column.this -4409 parent = column.parent -4410 -4411 while isinstance(parent, exp.Dot): -4412 if not isinstance(parent.parent, exp.Dot): -4413 parent.replace(dot_or_id) -4414 break -4415 parent = parent.parent -4416 else: -4417 if column is node: -4418 node = dot_or_id -4419 else: -4420 column.replace(dot_or_id) -4421 return node +4390 def _match_l_paren(self, expression=None): +4391 if not self._match(TokenType.L_PAREN): +4392 self.raise_error("Expecting (") +4393 if expression and self._prev_comments: +4394 expression.comments = self._prev_comments +4395 +4396 def _match_r_paren(self, expression=None): +4397 if not self._match(TokenType.R_PAREN): +4398 self.raise_error("Expecting )") +4399 if expression and self._prev_comments: +4400 expression.comments = self._prev_comments +4401 +4402 def _match_texts(self, texts, advance=True): +4403 if self._curr and self._curr.text.upper() in texts: +4404 if advance: +4405 self._advance() +4406 return True +4407 return False +4408 +4409 def _match_text_seq(self, *texts, advance=True): +4410 index = self._index +4411 for text in texts: +4412 if self._curr and self._curr.text.upper() == text: +4413 self._advance() +4414 else: +4415 self._retreat(index) +4416 return False +4417 +4418 if not advance: +4419 self._retreat(index) +4420 +4421 return True +4422 +4423 def _replace_columns_with_dots(self, this): +4424 if isinstance(this, exp.Dot): +4425 exp.replace_children(this, self._replace_columns_with_dots) +4426 elif isinstance(this, exp.Column): +4427 exp.replace_children(this, self._replace_columns_with_dots) +4428 table = this.args.get("table") +4429 this = ( +4430 self.expression(exp.Dot, this=table, expression=this.this) +4431 if table +4432 else self.expression(exp.Var, this=this.name) +4433 ) +4434 elif isinstance(this, exp.Identifier): +4435 this = self.expression(exp.Var, this=this.name) +4436 return this +4437 +4438 def _replace_lambda(self, node, lambda_variables): +4439 for column in node.find_all(exp.Column): +4440 if column.parts[0].name in lambda_variables: +4441 dot_or_id = column.to_dot() if column.table else column.this +4442 parent = column.parent +4443 +4444 while isinstance(parent, exp.Dot): +4445 if not isinstance(parent.parent, exp.Dot): +4446 parent.replace(dot_or_id) +4447 break +4448 parent = parent.parent +4449 else: +4450 if column is node: +4451 node = dot_or_id +4452 else: +4453 column.replace(dot_or_id) +4454 return node
    @@ -4775,4193 +4808,4226 @@ 233 TokenType.IS, 234 TokenType.ISNULL, 235 TokenType.INTERVAL, - 236 TokenType.LAZY, - 237 TokenType.LEADING, - 238 TokenType.LEFT, - 239 TokenType.LOCAL, - 240 TokenType.MATERIALIZED, - 241 TokenType.MERGE, - 242 TokenType.NATURAL, - 243 TokenType.NEXT, - 244 TokenType.OFFSET, - 245 TokenType.ONLY, - 246 TokenType.OPTIONS, - 247 TokenType.ORDINALITY, - 248 TokenType.OVERWRITE, - 249 TokenType.PARTITION, - 250 TokenType.PERCENT, - 251 TokenType.PIVOT, - 252 TokenType.PRAGMA, - 253 TokenType.PRECEDING, - 254 TokenType.RANGE, - 255 TokenType.REFERENCES, - 256 TokenType.RIGHT, - 257 TokenType.ROW, - 258 TokenType.ROWS, - 259 TokenType.SEED, - 260 TokenType.SEMI, - 261 TokenType.SET, - 262 TokenType.SHOW, - 263 TokenType.SORTKEY, - 264 TokenType.TEMPORARY, - 265 TokenType.TOP, - 266 TokenType.TRAILING, - 267 TokenType.TRUE, - 268 TokenType.UNBOUNDED, - 269 TokenType.UNIQUE, - 270 TokenType.UNLOGGED, - 271 TokenType.UNPIVOT, - 272 TokenType.VOLATILE, - 273 TokenType.WINDOW, - 274 *CREATABLES, - 275 *SUBQUERY_PREDICATES, - 276 *TYPE_TOKENS, - 277 *NO_PAREN_FUNCTIONS, - 278 } - 279 - 280 INTERVAL_VARS = ID_VAR_TOKENS - {TokenType.END} - 281 - 282 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { - 283 TokenType.APPLY, - 284 TokenType.FULL, - 285 TokenType.LEFT, - 286 TokenType.NATURAL, - 287 TokenType.OFFSET, - 288 TokenType.RIGHT, - 289 TokenType.WINDOW, - 290 } - 291 - 292 COMMENT_TABLE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.IS} - 293 - 294 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} - 295 - 296 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} - 297 - 298 FUNC_TOKENS = { - 299 TokenType.COMMAND, - 300 TokenType.CURRENT_DATE, - 301 TokenType.CURRENT_DATETIME, - 302 TokenType.CURRENT_TIMESTAMP, - 303 TokenType.CURRENT_TIME, - 304 TokenType.CURRENT_USER, - 305 TokenType.FILTER, - 306 TokenType.FIRST, - 307 TokenType.FORMAT, - 308 TokenType.GLOB, - 309 TokenType.IDENTIFIER, - 310 TokenType.INDEX, - 311 TokenType.ISNULL, - 312 TokenType.ILIKE, - 313 TokenType.LIKE, - 314 TokenType.MERGE, - 315 TokenType.OFFSET, - 316 TokenType.PRIMARY_KEY, - 317 TokenType.REPLACE, - 318 TokenType.ROW, - 319 TokenType.UNNEST, - 320 TokenType.VAR, - 321 TokenType.LEFT, - 322 TokenType.RIGHT, - 323 TokenType.DATE, - 324 TokenType.DATETIME, - 325 TokenType.TABLE, - 326 TokenType.TIMESTAMP, - 327 TokenType.TIMESTAMPTZ, - 328 TokenType.WINDOW, - 329 *TYPE_TOKENS, - 330 *SUBQUERY_PREDICATES, - 331 } - 332 - 333 CONJUNCTION = { - 334 TokenType.AND: exp.And, - 335 TokenType.OR: exp.Or, - 336 } - 337 - 338 EQUALITY = { - 339 TokenType.EQ: exp.EQ, - 340 TokenType.NEQ: exp.NEQ, - 341 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, - 342 } - 343 - 344 COMPARISON = { - 345 TokenType.GT: exp.GT, - 346 TokenType.GTE: exp.GTE, - 347 TokenType.LT: exp.LT, - 348 TokenType.LTE: exp.LTE, - 349 } - 350 - 351 BITWISE = { - 352 TokenType.AMP: exp.BitwiseAnd, - 353 TokenType.CARET: exp.BitwiseXor, - 354 TokenType.PIPE: exp.BitwiseOr, - 355 TokenType.DPIPE: exp.DPipe, - 356 } - 357 - 358 TERM = { - 359 TokenType.DASH: exp.Sub, - 360 TokenType.PLUS: exp.Add, - 361 TokenType.MOD: exp.Mod, - 362 TokenType.COLLATE: exp.Collate, - 363 } - 364 - 365 FACTOR = { - 366 TokenType.DIV: exp.IntDiv, - 367 TokenType.LR_ARROW: exp.Distance, - 368 TokenType.SLASH: exp.Div, - 369 TokenType.STAR: exp.Mul, - 370 } - 371 - 372 TIMESTAMPS = { - 373 TokenType.TIME, - 374 TokenType.TIMESTAMP, - 375 TokenType.TIMESTAMPTZ, - 376 TokenType.TIMESTAMPLTZ, - 377 } - 378 - 379 SET_OPERATIONS = { - 380 TokenType.UNION, - 381 TokenType.INTERSECT, - 382 TokenType.EXCEPT, - 383 } - 384 - 385 JOIN_SIDES = { - 386 TokenType.LEFT, - 387 TokenType.RIGHT, - 388 TokenType.FULL, - 389 } - 390 - 391 JOIN_KINDS = { - 392 TokenType.INNER, - 393 TokenType.OUTER, - 394 TokenType.CROSS, - 395 TokenType.SEMI, - 396 TokenType.ANTI, - 397 } - 398 - 399 LAMBDAS = { - 400 TokenType.ARROW: lambda self, expressions: self.expression( - 401 exp.Lambda, - 402 this=self._replace_lambda( - 403 self._parse_conjunction(), - 404 {node.name for node in expressions}, - 405 ), - 406 expressions=expressions, - 407 ), - 408 TokenType.FARROW: lambda self, expressions: self.expression( - 409 exp.Kwarg, - 410 this=exp.Var(this=expressions[0].name), - 411 expression=self._parse_conjunction(), - 412 ), - 413 } - 414 - 415 COLUMN_OPERATORS = { - 416 TokenType.DOT: None, - 417 TokenType.DCOLON: lambda self, this, to: self.expression( - 418 exp.Cast if self.STRICT_CAST else exp.TryCast, - 419 this=this, - 420 to=to, - 421 ), - 422 TokenType.ARROW: lambda self, this, path: self.expression( - 423 exp.JSONExtract, - 424 this=this, - 425 expression=path, - 426 ), - 427 TokenType.DARROW: lambda self, this, path: self.expression( - 428 exp.JSONExtractScalar, - 429 this=this, - 430 expression=path, - 431 ), - 432 TokenType.HASH_ARROW: lambda self, this, path: self.expression( - 433 exp.JSONBExtract, - 434 this=this, - 435 expression=path, - 436 ), - 437 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( - 438 exp.JSONBExtractScalar, - 439 this=this, - 440 expression=path, - 441 ), - 442 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( - 443 exp.JSONBContains, - 444 this=this, - 445 expression=key, - 446 ), - 447 } - 448 - 449 EXPRESSION_PARSERS = { - 450 exp.Column: lambda self: self._parse_column(), - 451 exp.DataType: lambda self: self._parse_types(), - 452 exp.From: lambda self: self._parse_from(), - 453 exp.Group: lambda self: self._parse_group(), - 454 exp.Identifier: lambda self: self._parse_id_var(), - 455 exp.Lateral: lambda self: self._parse_lateral(), - 456 exp.Join: lambda self: self._parse_join(), - 457 exp.Order: lambda self: self._parse_order(), - 458 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 459 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 460 exp.Lambda: lambda self: self._parse_lambda(), - 461 exp.Limit: lambda self: self._parse_limit(), - 462 exp.Offset: lambda self: self._parse_offset(), - 463 exp.TableAlias: lambda self: self._parse_table_alias(), - 464 exp.Table: lambda self: self._parse_table(), - 465 exp.Condition: lambda self: self._parse_conjunction(), - 466 exp.Expression: lambda self: self._parse_statement(), - 467 exp.Properties: lambda self: self._parse_properties(), - 468 exp.Where: lambda self: self._parse_where(), - 469 exp.Ordered: lambda self: self._parse_ordered(), - 470 exp.Having: lambda self: self._parse_having(), - 471 exp.With: lambda self: self._parse_with(), - 472 exp.Window: lambda self: self._parse_named_window(), - 473 exp.Qualify: lambda self: self._parse_qualify(), - 474 exp.Returning: lambda self: self._parse_returning(), - 475 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), - 476 } - 477 - 478 STATEMENT_PARSERS = { - 479 TokenType.ALTER: lambda self: self._parse_alter(), - 480 TokenType.BEGIN: lambda self: self._parse_transaction(), - 481 TokenType.CACHE: lambda self: self._parse_cache(), - 482 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), - 483 TokenType.COMMENT: lambda self: self._parse_comment(), - 484 TokenType.CREATE: lambda self: self._parse_create(), - 485 TokenType.DELETE: lambda self: self._parse_delete(), - 486 TokenType.DESC: lambda self: self._parse_describe(), - 487 TokenType.DESCRIBE: lambda self: self._parse_describe(), - 488 TokenType.DROP: lambda self: self._parse_drop(), - 489 TokenType.END: lambda self: self._parse_commit_or_rollback(), - 490 TokenType.INSERT: lambda self: self._parse_insert(), - 491 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), - 492 TokenType.MERGE: lambda self: self._parse_merge(), - 493 TokenType.PRAGMA: lambda self: self.expression(exp.Pragma, this=self._parse_expression()), - 494 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), - 495 TokenType.SET: lambda self: self._parse_set(), - 496 TokenType.UNCACHE: lambda self: self._parse_uncache(), - 497 TokenType.UPDATE: lambda self: self._parse_update(), - 498 TokenType.USE: lambda self: self.expression( - 499 exp.Use, - 500 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) - 501 and exp.Var(this=self._prev.text), - 502 this=self._parse_table(schema=False), - 503 ), - 504 } - 505 - 506 UNARY_PARSERS = { - 507 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op - 508 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), - 509 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), - 510 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), - 511 } - 512 - 513 PRIMARY_PARSERS = { - 514 TokenType.STRING: lambda self, token: self.expression( - 515 exp.Literal, this=token.text, is_string=True - 516 ), - 517 TokenType.NUMBER: lambda self, token: self.expression( - 518 exp.Literal, this=token.text, is_string=False - 519 ), - 520 TokenType.STAR: lambda self, _: self.expression( - 521 exp.Star, - 522 **{"except": self._parse_except(), "replace": self._parse_replace()}, - 523 ), - 524 TokenType.NULL: lambda self, _: self.expression(exp.Null), - 525 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), - 526 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), - 527 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), - 528 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), - 529 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), - 530 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), - 531 TokenType.NATIONAL: lambda self, token: self._parse_national(token), - 532 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), - 533 } - 534 - 535 PLACEHOLDER_PARSERS = { - 536 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), - 537 TokenType.PARAMETER: lambda self: self._parse_parameter(), - 538 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) - 539 if self._match_set((TokenType.NUMBER, TokenType.VAR)) - 540 else None, - 541 } - 542 - 543 RANGE_PARSERS = { - 544 TokenType.BETWEEN: lambda self, this: self._parse_between(this), - 545 TokenType.GLOB: binary_range_parser(exp.Glob), - 546 TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), - 547 TokenType.IN: lambda self, this: self._parse_in(this), - 548 TokenType.IS: lambda self, this: self._parse_is(this), - 549 TokenType.LIKE: binary_range_parser(exp.Like), - 550 TokenType.ILIKE: binary_range_parser(exp.ILike), - 551 TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), - 552 TokenType.RLIKE: binary_range_parser(exp.RegexpLike), - 553 TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), - 554 } - 555 - 556 PROPERTY_PARSERS = { - 557 "AFTER": lambda self: self._parse_afterjournal( - 558 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 559 ), - 560 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), - 561 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), - 562 "BEFORE": lambda self: self._parse_journal( - 563 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 564 ), - 565 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), - 566 "CHARACTER SET": lambda self: self._parse_character_set(), - 567 "CHECKSUM": lambda self: self._parse_checksum(), - 568 "CLUSTER BY": lambda self: self.expression( - 569 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) - 570 ), - 571 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), - 572 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), - 573 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( - 574 default=self._prev.text.upper() == "DEFAULT" - 575 ), - 576 "DEFINER": lambda self: self._parse_definer(), - 577 "DETERMINISTIC": lambda self: self.expression( - 578 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") - 579 ), - 580 "DISTKEY": lambda self: self._parse_distkey(), - 581 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), - 582 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), - 583 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), - 584 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), - 585 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), - 586 "FREESPACE": lambda self: self._parse_freespace(), - 587 "GLOBAL": lambda self: self._parse_temporary(global_=True), - 588 "IMMUTABLE": lambda self: self.expression( - 589 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") - 590 ), - 591 "JOURNAL": lambda self: self._parse_journal( - 592 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" - 593 ), - 594 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), - 595 "LIKE": lambda self: self._parse_create_like(), - 596 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), - 597 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), - 598 "LOCK": lambda self: self._parse_locking(), - 599 "LOCKING": lambda self: self._parse_locking(), - 600 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), - 601 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), - 602 "MAX": lambda self: self._parse_datablocksize(), - 603 "MAXIMUM": lambda self: self._parse_datablocksize(), - 604 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( - 605 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" - 606 ), - 607 "MIN": lambda self: self._parse_datablocksize(), - 608 "MINIMUM": lambda self: self._parse_datablocksize(), - 609 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), - 610 "NO": lambda self: self._parse_noprimaryindex(), - 611 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), - 612 "ON": lambda self: self._parse_oncommit(), - 613 "PARTITION BY": lambda self: self._parse_partitioned_by(), - 614 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), - 615 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), - 616 "RETURNS": lambda self: self._parse_returns(), - 617 "ROW": lambda self: self._parse_row(), - 618 "ROW_FORMAT": lambda self: self._parse_property_assignment(exp.RowFormatProperty), - 619 "SET": lambda self: self.expression(exp.SetProperty, multi=False), - 620 "SORTKEY": lambda self: self._parse_sortkey(), - 621 "STABLE": lambda self: self.expression( - 622 exp.StabilityProperty, this=exp.Literal.string("STABLE") - 623 ), - 624 "STORED": lambda self: self._parse_stored(), - 625 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 626 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), - 627 "TEMP": lambda self: self._parse_temporary(global_=False), - 628 "TEMPORARY": lambda self: self._parse_temporary(global_=False), - 629 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), - 630 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), - 631 "VOLATILE": lambda self: self._parse_volatile_property(), - 632 "WITH": lambda self: self._parse_with_property(), - 633 } - 634 - 635 CONSTRAINT_PARSERS = { - 636 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), - 637 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), - 638 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), - 639 "CHARACTER SET": lambda self: self.expression( - 640 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() - 641 ), - 642 "CHECK": lambda self: self.expression( - 643 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) - 644 ), - 645 "COLLATE": lambda self: self.expression( - 646 exp.CollateColumnConstraint, this=self._parse_var() - 647 ), - 648 "COMMENT": lambda self: self.expression( - 649 exp.CommentColumnConstraint, this=self._parse_string() - 650 ), - 651 "COMPRESS": lambda self: self._parse_compress(), - 652 "DEFAULT": lambda self: self.expression( - 653 exp.DefaultColumnConstraint, this=self._parse_bitwise() - 654 ), - 655 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), - 656 "FOREIGN KEY": lambda self: self._parse_foreign_key(), - 657 "FORMAT": lambda self: self.expression( - 658 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() - 659 ), - 660 "GENERATED": lambda self: self._parse_generated_as_identity(), - 661 "IDENTITY": lambda self: self._parse_auto_increment(), - 662 "INLINE": lambda self: self._parse_inline(), - 663 "LIKE": lambda self: self._parse_create_like(), - 664 "NOT": lambda self: self._parse_not_constraint(), - 665 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), - 666 "ON": lambda self: self._match(TokenType.UPDATE) - 667 and self.expression(exp.OnUpdateColumnConstraint, this=self._parse_function()), - 668 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), - 669 "PRIMARY KEY": lambda self: self._parse_primary_key(), - 670 "REFERENCES": lambda self: self._parse_references(match=False), - 671 "TITLE": lambda self: self.expression( - 672 exp.TitleColumnConstraint, this=self._parse_var_or_string() - 673 ), - 674 "UNIQUE": lambda self: self._parse_unique(), - 675 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), - 676 } - 677 - 678 ALTER_PARSERS = { - 679 "ADD": lambda self: self._parse_alter_table_add(), - 680 "ALTER": lambda self: self._parse_alter_table_alter(), - 681 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), - 682 "DROP": lambda self: self._parse_alter_table_drop(), - 683 "RENAME": lambda self: self._parse_alter_table_rename(), - 684 } - 685 - 686 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} - 687 - 688 NO_PAREN_FUNCTION_PARSERS = { - 689 TokenType.CASE: lambda self: self._parse_case(), - 690 TokenType.IF: lambda self: self._parse_if(), - 691 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), - 692 } - 693 - 694 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { - 695 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), - 696 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), - 697 "DECODE": lambda self: self._parse_decode(), - 698 "EXTRACT": lambda self: self._parse_extract(), - 699 "JSON_OBJECT": lambda self: self._parse_json_object(), - 700 "LOG": lambda self: self._parse_logarithm(), - 701 "MATCH": lambda self: self._parse_match_against(), - 702 "POSITION": lambda self: self._parse_position(), - 703 "STRING_AGG": lambda self: self._parse_string_agg(), - 704 "SUBSTRING": lambda self: self._parse_substring(), - 705 "TRIM": lambda self: self._parse_trim(), - 706 "TRY_CAST": lambda self: self._parse_cast(False), - 707 "TRY_CONVERT": lambda self: self._parse_convert(False), - 708 } - 709 - 710 QUERY_MODIFIER_PARSERS = { - 711 "match": lambda self: self._parse_match_recognize(), - 712 "where": lambda self: self._parse_where(), - 713 "group": lambda self: self._parse_group(), - 714 "having": lambda self: self._parse_having(), - 715 "qualify": lambda self: self._parse_qualify(), - 716 "windows": lambda self: self._parse_window_clause(), - 717 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), - 718 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), - 719 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), - 720 "order": lambda self: self._parse_order(), - 721 "limit": lambda self: self._parse_limit(), - 722 "offset": lambda self: self._parse_offset(), - 723 "lock": lambda self: self._parse_lock(), - 724 "sample": lambda self: self._parse_table_sample(as_modifier=True), - 725 } - 726 - 727 SET_PARSERS = { - 728 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), - 729 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), - 730 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), - 731 "TRANSACTION": lambda self: self._parse_set_transaction(), - 732 } - 733 - 734 SHOW_PARSERS: t.Dict[str, t.Callable] = {} - 735 - 736 TYPE_LITERAL_PARSERS: t.Dict[exp.DataType.Type, t.Callable] = {} - 737 - 738 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 236 TokenType.KEEP, + 237 TokenType.LAZY, + 238 TokenType.LEADING, + 239 TokenType.LEFT, + 240 TokenType.LOCAL, + 241 TokenType.MATERIALIZED, + 242 TokenType.MERGE, + 243 TokenType.NATURAL, + 244 TokenType.NEXT, + 245 TokenType.OFFSET, + 246 TokenType.ONLY, + 247 TokenType.OPTIONS, + 248 TokenType.ORDINALITY, + 249 TokenType.OVERWRITE, + 250 TokenType.PARTITION, + 251 TokenType.PERCENT, + 252 TokenType.PIVOT, + 253 TokenType.PRAGMA, + 254 TokenType.PRECEDING, + 255 TokenType.RANGE, + 256 TokenType.REFERENCES, + 257 TokenType.RIGHT, + 258 TokenType.ROW, + 259 TokenType.ROWS, + 260 TokenType.SEED, + 261 TokenType.SEMI, + 262 TokenType.SET, + 263 TokenType.SHOW, + 264 TokenType.SORTKEY, + 265 TokenType.TEMPORARY, + 266 TokenType.TOP, + 267 TokenType.TRAILING, + 268 TokenType.TRUE, + 269 TokenType.UNBOUNDED, + 270 TokenType.UNIQUE, + 271 TokenType.UNLOGGED, + 272 TokenType.UNPIVOT, + 273 TokenType.VOLATILE, + 274 TokenType.WINDOW, + 275 *CREATABLES, + 276 *SUBQUERY_PREDICATES, + 277 *TYPE_TOKENS, + 278 *NO_PAREN_FUNCTIONS, + 279 } + 280 + 281 INTERVAL_VARS = ID_VAR_TOKENS - {TokenType.END} + 282 + 283 TABLE_ALIAS_TOKENS = ID_VAR_TOKENS - { + 284 TokenType.APPLY, + 285 TokenType.FULL, + 286 TokenType.LEFT, + 287 TokenType.NATURAL, + 288 TokenType.OFFSET, + 289 TokenType.RIGHT, + 290 TokenType.WINDOW, + 291 } + 292 + 293 COMMENT_TABLE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.IS} + 294 + 295 UPDATE_ALIAS_TOKENS = TABLE_ALIAS_TOKENS - {TokenType.SET} + 296 + 297 TRIM_TYPES = {TokenType.LEADING, TokenType.TRAILING, TokenType.BOTH} + 298 + 299 FUNC_TOKENS = { + 300 TokenType.COMMAND, + 301 TokenType.CURRENT_DATE, + 302 TokenType.CURRENT_DATETIME, + 303 TokenType.CURRENT_TIMESTAMP, + 304 TokenType.CURRENT_TIME, + 305 TokenType.CURRENT_USER, + 306 TokenType.FILTER, + 307 TokenType.FIRST, + 308 TokenType.FORMAT, + 309 TokenType.GLOB, + 310 TokenType.IDENTIFIER, + 311 TokenType.INDEX, + 312 TokenType.ISNULL, + 313 TokenType.ILIKE, + 314 TokenType.LIKE, + 315 TokenType.MERGE, + 316 TokenType.OFFSET, + 317 TokenType.PRIMARY_KEY, + 318 TokenType.REPLACE, + 319 TokenType.ROW, + 320 TokenType.UNNEST, + 321 TokenType.VAR, + 322 TokenType.LEFT, + 323 TokenType.RIGHT, + 324 TokenType.DATE, + 325 TokenType.DATETIME, + 326 TokenType.TABLE, + 327 TokenType.TIMESTAMP, + 328 TokenType.TIMESTAMPTZ, + 329 TokenType.WINDOW, + 330 *TYPE_TOKENS, + 331 *SUBQUERY_PREDICATES, + 332 } + 333 + 334 CONJUNCTION = { + 335 TokenType.AND: exp.And, + 336 TokenType.OR: exp.Or, + 337 } + 338 + 339 EQUALITY = { + 340 TokenType.EQ: exp.EQ, + 341 TokenType.NEQ: exp.NEQ, + 342 TokenType.NULLSAFE_EQ: exp.NullSafeEQ, + 343 } + 344 + 345 COMPARISON = { + 346 TokenType.GT: exp.GT, + 347 TokenType.GTE: exp.GTE, + 348 TokenType.LT: exp.LT, + 349 TokenType.LTE: exp.LTE, + 350 } + 351 + 352 BITWISE = { + 353 TokenType.AMP: exp.BitwiseAnd, + 354 TokenType.CARET: exp.BitwiseXor, + 355 TokenType.PIPE: exp.BitwiseOr, + 356 TokenType.DPIPE: exp.DPipe, + 357 } + 358 + 359 TERM = { + 360 TokenType.DASH: exp.Sub, + 361 TokenType.PLUS: exp.Add, + 362 TokenType.MOD: exp.Mod, + 363 TokenType.COLLATE: exp.Collate, + 364 } + 365 + 366 FACTOR = { + 367 TokenType.DIV: exp.IntDiv, + 368 TokenType.LR_ARROW: exp.Distance, + 369 TokenType.SLASH: exp.Div, + 370 TokenType.STAR: exp.Mul, + 371 } + 372 + 373 TIMESTAMPS = { + 374 TokenType.TIME, + 375 TokenType.TIMESTAMP, + 376 TokenType.TIMESTAMPTZ, + 377 TokenType.TIMESTAMPLTZ, + 378 } + 379 + 380 SET_OPERATIONS = { + 381 TokenType.UNION, + 382 TokenType.INTERSECT, + 383 TokenType.EXCEPT, + 384 } + 385 + 386 JOIN_SIDES = { + 387 TokenType.LEFT, + 388 TokenType.RIGHT, + 389 TokenType.FULL, + 390 } + 391 + 392 JOIN_KINDS = { + 393 TokenType.INNER, + 394 TokenType.OUTER, + 395 TokenType.CROSS, + 396 TokenType.SEMI, + 397 TokenType.ANTI, + 398 } + 399 + 400 LAMBDAS = { + 401 TokenType.ARROW: lambda self, expressions: self.expression( + 402 exp.Lambda, + 403 this=self._replace_lambda( + 404 self._parse_conjunction(), + 405 {node.name for node in expressions}, + 406 ), + 407 expressions=expressions, + 408 ), + 409 TokenType.FARROW: lambda self, expressions: self.expression( + 410 exp.Kwarg, + 411 this=exp.Var(this=expressions[0].name), + 412 expression=self._parse_conjunction(), + 413 ), + 414 } + 415 + 416 COLUMN_OPERATORS = { + 417 TokenType.DOT: None, + 418 TokenType.DCOLON: lambda self, this, to: self.expression( + 419 exp.Cast if self.STRICT_CAST else exp.TryCast, + 420 this=this, + 421 to=to, + 422 ), + 423 TokenType.ARROW: lambda self, this, path: self.expression( + 424 exp.JSONExtract, + 425 this=this, + 426 expression=path, + 427 ), + 428 TokenType.DARROW: lambda self, this, path: self.expression( + 429 exp.JSONExtractScalar, + 430 this=this, + 431 expression=path, + 432 ), + 433 TokenType.HASH_ARROW: lambda self, this, path: self.expression( + 434 exp.JSONBExtract, + 435 this=this, + 436 expression=path, + 437 ), + 438 TokenType.DHASH_ARROW: lambda self, this, path: self.expression( + 439 exp.JSONBExtractScalar, + 440 this=this, + 441 expression=path, + 442 ), + 443 TokenType.PLACEHOLDER: lambda self, this, key: self.expression( + 444 exp.JSONBContains, + 445 this=this, + 446 expression=key, + 447 ), + 448 } + 449 + 450 EXPRESSION_PARSERS = { + 451 exp.Column: lambda self: self._parse_column(), + 452 exp.DataType: lambda self: self._parse_types(), + 453 exp.From: lambda self: self._parse_from(), + 454 exp.Group: lambda self: self._parse_group(), + 455 exp.Identifier: lambda self: self._parse_id_var(), + 456 exp.Lateral: lambda self: self._parse_lateral(), + 457 exp.Join: lambda self: self._parse_join(), + 458 exp.Order: lambda self: self._parse_order(), + 459 exp.Cluster: lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 460 exp.Sort: lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 461 exp.Lambda: lambda self: self._parse_lambda(), + 462 exp.Limit: lambda self: self._parse_limit(), + 463 exp.Offset: lambda self: self._parse_offset(), + 464 exp.TableAlias: lambda self: self._parse_table_alias(), + 465 exp.Table: lambda self: self._parse_table(), + 466 exp.Condition: lambda self: self._parse_conjunction(), + 467 exp.Expression: lambda self: self._parse_statement(), + 468 exp.Properties: lambda self: self._parse_properties(), + 469 exp.Where: lambda self: self._parse_where(), + 470 exp.Ordered: lambda self: self._parse_ordered(), + 471 exp.Having: lambda self: self._parse_having(), + 472 exp.With: lambda self: self._parse_with(), + 473 exp.Window: lambda self: self._parse_named_window(), + 474 exp.Qualify: lambda self: self._parse_qualify(), + 475 exp.Returning: lambda self: self._parse_returning(), + 476 "JOIN_TYPE": lambda self: self._parse_join_side_and_kind(), + 477 } + 478 + 479 STATEMENT_PARSERS = { + 480 TokenType.ALTER: lambda self: self._parse_alter(), + 481 TokenType.BEGIN: lambda self: self._parse_transaction(), + 482 TokenType.CACHE: lambda self: self._parse_cache(), + 483 TokenType.COMMIT: lambda self: self._parse_commit_or_rollback(), + 484 TokenType.COMMENT: lambda self: self._parse_comment(), + 485 TokenType.CREATE: lambda self: self._parse_create(), + 486 TokenType.DELETE: lambda self: self._parse_delete(), + 487 TokenType.DESC: lambda self: self._parse_describe(), + 488 TokenType.DESCRIBE: lambda self: self._parse_describe(), + 489 TokenType.DROP: lambda self: self._parse_drop(), + 490 TokenType.END: lambda self: self._parse_commit_or_rollback(), + 491 TokenType.INSERT: lambda self: self._parse_insert(), + 492 TokenType.LOAD_DATA: lambda self: self._parse_load_data(), + 493 TokenType.MERGE: lambda self: self._parse_merge(), + 494 TokenType.PRAGMA: lambda self: self.expression(exp.Pragma, this=self._parse_expression()), + 495 TokenType.ROLLBACK: lambda self: self._parse_commit_or_rollback(), + 496 TokenType.SET: lambda self: self._parse_set(), + 497 TokenType.UNCACHE: lambda self: self._parse_uncache(), + 498 TokenType.UPDATE: lambda self: self._parse_update(), + 499 TokenType.USE: lambda self: self.expression( + 500 exp.Use, + 501 kind=self._match_texts(("ROLE", "WAREHOUSE", "DATABASE", "SCHEMA")) + 502 and exp.Var(this=self._prev.text), + 503 this=self._parse_table(schema=False), + 504 ), + 505 } + 506 + 507 UNARY_PARSERS = { + 508 TokenType.PLUS: lambda self: self._parse_unary(), # Unary + is handled as a no-op + 509 TokenType.NOT: lambda self: self.expression(exp.Not, this=self._parse_equality()), + 510 TokenType.TILDA: lambda self: self.expression(exp.BitwiseNot, this=self._parse_unary()), + 511 TokenType.DASH: lambda self: self.expression(exp.Neg, this=self._parse_unary()), + 512 } + 513 + 514 PRIMARY_PARSERS = { + 515 TokenType.STRING: lambda self, token: self.expression( + 516 exp.Literal, this=token.text, is_string=True + 517 ), + 518 TokenType.NUMBER: lambda self, token: self.expression( + 519 exp.Literal, this=token.text, is_string=False + 520 ), + 521 TokenType.STAR: lambda self, _: self.expression( + 522 exp.Star, + 523 **{"except": self._parse_except(), "replace": self._parse_replace()}, + 524 ), + 525 TokenType.NULL: lambda self, _: self.expression(exp.Null), + 526 TokenType.TRUE: lambda self, _: self.expression(exp.Boolean, this=True), + 527 TokenType.FALSE: lambda self, _: self.expression(exp.Boolean, this=False), + 528 TokenType.BIT_STRING: lambda self, token: self.expression(exp.BitString, this=token.text), + 529 TokenType.HEX_STRING: lambda self, token: self.expression(exp.HexString, this=token.text), + 530 TokenType.BYTE_STRING: lambda self, token: self.expression(exp.ByteString, this=token.text), + 531 TokenType.INTRODUCER: lambda self, token: self._parse_introducer(token), + 532 TokenType.NATIONAL: lambda self, token: self._parse_national(token), + 533 TokenType.SESSION_PARAMETER: lambda self, _: self._parse_session_parameter(), + 534 } + 535 + 536 PLACEHOLDER_PARSERS = { + 537 TokenType.PLACEHOLDER: lambda self: self.expression(exp.Placeholder), + 538 TokenType.PARAMETER: lambda self: self._parse_parameter(), + 539 TokenType.COLON: lambda self: self.expression(exp.Placeholder, this=self._prev.text) + 540 if self._match_set((TokenType.NUMBER, TokenType.VAR)) + 541 else None, + 542 } + 543 + 544 RANGE_PARSERS = { + 545 TokenType.BETWEEN: lambda self, this: self._parse_between(this), + 546 TokenType.GLOB: binary_range_parser(exp.Glob), + 547 TokenType.OVERLAPS: binary_range_parser(exp.Overlaps), + 548 TokenType.IN: lambda self, this: self._parse_in(this), + 549 TokenType.IS: lambda self, this: self._parse_is(this), + 550 TokenType.LIKE: binary_range_parser(exp.Like), + 551 TokenType.ILIKE: binary_range_parser(exp.ILike), + 552 TokenType.IRLIKE: binary_range_parser(exp.RegexpILike), + 553 TokenType.RLIKE: binary_range_parser(exp.RegexpLike), + 554 TokenType.SIMILAR_TO: binary_range_parser(exp.SimilarTo), + 555 } + 556 + 557 PROPERTY_PARSERS = { + 558 "AFTER": lambda self: self._parse_afterjournal( + 559 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 560 ), + 561 "ALGORITHM": lambda self: self._parse_property_assignment(exp.AlgorithmProperty), + 562 "AUTO_INCREMENT": lambda self: self._parse_property_assignment(exp.AutoIncrementProperty), + 563 "BEFORE": lambda self: self._parse_journal( + 564 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 565 ), + 566 "BLOCKCOMPRESSION": lambda self: self._parse_blockcompression(), + 567 "CHARACTER SET": lambda self: self._parse_character_set(), + 568 "CHECKSUM": lambda self: self._parse_checksum(), + 569 "CLUSTER BY": lambda self: self.expression( + 570 exp.Cluster, expressions=self._parse_csv(self._parse_ordered) + 571 ), + 572 "COLLATE": lambda self: self._parse_property_assignment(exp.CollateProperty), + 573 "COMMENT": lambda self: self._parse_property_assignment(exp.SchemaCommentProperty), + 574 "DATABLOCKSIZE": lambda self: self._parse_datablocksize( + 575 default=self._prev.text.upper() == "DEFAULT" + 576 ), + 577 "DEFINER": lambda self: self._parse_definer(), + 578 "DETERMINISTIC": lambda self: self.expression( + 579 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") + 580 ), + 581 "DISTKEY": lambda self: self._parse_distkey(), + 582 "DISTSTYLE": lambda self: self._parse_property_assignment(exp.DistStyleProperty), + 583 "EXECUTE": lambda self: self._parse_property_assignment(exp.ExecuteAsProperty), + 584 "EXTERNAL": lambda self: self.expression(exp.ExternalProperty), + 585 "FALLBACK": lambda self: self._parse_fallback(no=self._prev.text.upper() == "NO"), + 586 "FORMAT": lambda self: self._parse_property_assignment(exp.FileFormatProperty), + 587 "FREESPACE": lambda self: self._parse_freespace(), + 588 "GLOBAL": lambda self: self._parse_temporary(global_=True), + 589 "IMMUTABLE": lambda self: self.expression( + 590 exp.StabilityProperty, this=exp.Literal.string("IMMUTABLE") + 591 ), + 592 "JOURNAL": lambda self: self._parse_journal( + 593 no=self._prev.text.upper() == "NO", dual=self._prev.text.upper() == "DUAL" + 594 ), + 595 "LANGUAGE": lambda self: self._parse_property_assignment(exp.LanguageProperty), + 596 "LIKE": lambda self: self._parse_create_like(), + 597 "LOCAL": lambda self: self._parse_afterjournal(no=False, dual=False, local=True), + 598 "LOCATION": lambda self: self._parse_property_assignment(exp.LocationProperty), + 599 "LOCK": lambda self: self._parse_locking(), + 600 "LOCKING": lambda self: self._parse_locking(), + 601 "LOG": lambda self: self._parse_log(no=self._prev.text.upper() == "NO"), + 602 "MATERIALIZED": lambda self: self.expression(exp.MaterializedProperty), + 603 "MAX": lambda self: self._parse_datablocksize(), + 604 "MAXIMUM": lambda self: self._parse_datablocksize(), + 605 "MERGEBLOCKRATIO": lambda self: self._parse_mergeblockratio( + 606 no=self._prev.text.upper() == "NO", default=self._prev.text.upper() == "DEFAULT" + 607 ), + 608 "MIN": lambda self: self._parse_datablocksize(), + 609 "MINIMUM": lambda self: self._parse_datablocksize(), + 610 "MULTISET": lambda self: self.expression(exp.SetProperty, multi=True), + 611 "NO": lambda self: self._parse_noprimaryindex(), + 612 "NOT": lambda self: self._parse_afterjournal(no=False, dual=False, local=False), + 613 "ON": lambda self: self._parse_oncommit(), + 614 "PARTITION BY": lambda self: self._parse_partitioned_by(), + 615 "PARTITIONED BY": lambda self: self._parse_partitioned_by(), + 616 "PARTITIONED_BY": lambda self: self._parse_partitioned_by(), + 617 "RETURNS": lambda self: self._parse_returns(), + 618 "ROW": lambda self: self._parse_row(), + 619 "ROW_FORMAT": lambda self: self._parse_property_assignment(exp.RowFormatProperty), + 620 "SET": lambda self: self.expression(exp.SetProperty, multi=False), + 621 "SORTKEY": lambda self: self._parse_sortkey(), + 622 "STABLE": lambda self: self.expression( + 623 exp.StabilityProperty, this=exp.Literal.string("STABLE") + 624 ), + 625 "STORED": lambda self: self._parse_stored(), + 626 "TABLE_FORMAT": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 627 "TBLPROPERTIES": lambda self: self._parse_wrapped_csv(self._parse_property), + 628 "TEMP": lambda self: self._parse_temporary(global_=False), + 629 "TEMPORARY": lambda self: self._parse_temporary(global_=False), + 630 "TRANSIENT": lambda self: self.expression(exp.TransientProperty), + 631 "USING": lambda self: self._parse_property_assignment(exp.TableFormatProperty), + 632 "VOLATILE": lambda self: self._parse_volatile_property(), + 633 "WITH": lambda self: self._parse_with_property(), + 634 } + 635 + 636 CONSTRAINT_PARSERS = { + 637 "AUTOINCREMENT": lambda self: self._parse_auto_increment(), + 638 "AUTO_INCREMENT": lambda self: self._parse_auto_increment(), + 639 "CASESPECIFIC": lambda self: self.expression(exp.CaseSpecificColumnConstraint, not_=False), + 640 "CHARACTER SET": lambda self: self.expression( + 641 exp.CharacterSetColumnConstraint, this=self._parse_var_or_string() + 642 ), + 643 "CHECK": lambda self: self.expression( + 644 exp.CheckColumnConstraint, this=self._parse_wrapped(self._parse_conjunction) + 645 ), + 646 "COLLATE": lambda self: self.expression( + 647 exp.CollateColumnConstraint, this=self._parse_var() + 648 ), + 649 "COMMENT": lambda self: self.expression( + 650 exp.CommentColumnConstraint, this=self._parse_string() + 651 ), + 652 "COMPRESS": lambda self: self._parse_compress(), + 653 "DEFAULT": lambda self: self.expression( + 654 exp.DefaultColumnConstraint, this=self._parse_bitwise() + 655 ), + 656 "ENCODE": lambda self: self.expression(exp.EncodeColumnConstraint, this=self._parse_var()), + 657 "FOREIGN KEY": lambda self: self._parse_foreign_key(), + 658 "FORMAT": lambda self: self.expression( + 659 exp.DateFormatColumnConstraint, this=self._parse_var_or_string() + 660 ), + 661 "GENERATED": lambda self: self._parse_generated_as_identity(), + 662 "IDENTITY": lambda self: self._parse_auto_increment(), + 663 "INLINE": lambda self: self._parse_inline(), + 664 "LIKE": lambda self: self._parse_create_like(), + 665 "NOT": lambda self: self._parse_not_constraint(), + 666 "NULL": lambda self: self.expression(exp.NotNullColumnConstraint, allow_null=True), + 667 "ON": lambda self: self._match(TokenType.UPDATE) + 668 and self.expression(exp.OnUpdateColumnConstraint, this=self._parse_function()), + 669 "PATH": lambda self: self.expression(exp.PathColumnConstraint, this=self._parse_string()), + 670 "PRIMARY KEY": lambda self: self._parse_primary_key(), + 671 "REFERENCES": lambda self: self._parse_references(match=False), + 672 "TITLE": lambda self: self.expression( + 673 exp.TitleColumnConstraint, this=self._parse_var_or_string() + 674 ), + 675 "UNIQUE": lambda self: self._parse_unique(), + 676 "UPPERCASE": lambda self: self.expression(exp.UppercaseColumnConstraint), + 677 } + 678 + 679 ALTER_PARSERS = { + 680 "ADD": lambda self: self._parse_alter_table_add(), + 681 "ALTER": lambda self: self._parse_alter_table_alter(), + 682 "DELETE": lambda self: self.expression(exp.Delete, where=self._parse_where()), + 683 "DROP": lambda self: self._parse_alter_table_drop(), + 684 "RENAME": lambda self: self._parse_alter_table_rename(), + 685 } + 686 + 687 SCHEMA_UNNAMED_CONSTRAINTS = {"CHECK", "FOREIGN KEY", "LIKE", "PRIMARY KEY", "UNIQUE"} + 688 + 689 NO_PAREN_FUNCTION_PARSERS = { + 690 TokenType.ANY: lambda self: self.expression(exp.Any, this=self._parse_bitwise()), + 691 TokenType.CASE: lambda self: self._parse_case(), + 692 TokenType.IF: lambda self: self._parse_if(), + 693 TokenType.NEXT_VALUE_FOR: lambda self: self.expression( + 694 exp.NextValueFor, + 695 this=self._parse_column(), + 696 order=self._match(TokenType.OVER) and self._parse_wrapped(self._parse_order), + 697 ), + 698 } + 699 + 700 FUNCTION_PARSERS: t.Dict[str, t.Callable] = { + 701 "CAST": lambda self: self._parse_cast(self.STRICT_CAST), + 702 "CONVERT": lambda self: self._parse_convert(self.STRICT_CAST), + 703 "DECODE": lambda self: self._parse_decode(), + 704 "EXTRACT": lambda self: self._parse_extract(), + 705 "JSON_OBJECT": lambda self: self._parse_json_object(), + 706 "LOG": lambda self: self._parse_logarithm(), + 707 "MATCH": lambda self: self._parse_match_against(), + 708 "POSITION": lambda self: self._parse_position(), + 709 "STRING_AGG": lambda self: self._parse_string_agg(), + 710 "SUBSTRING": lambda self: self._parse_substring(), + 711 "TRIM": lambda self: self._parse_trim(), + 712 "TRY_CAST": lambda self: self._parse_cast(False), + 713 "TRY_CONVERT": lambda self: self._parse_convert(False), + 714 } + 715 + 716 QUERY_MODIFIER_PARSERS = { + 717 "match": lambda self: self._parse_match_recognize(), + 718 "where": lambda self: self._parse_where(), + 719 "group": lambda self: self._parse_group(), + 720 "having": lambda self: self._parse_having(), + 721 "qualify": lambda self: self._parse_qualify(), + 722 "windows": lambda self: self._parse_window_clause(), + 723 "distribute": lambda self: self._parse_sort(TokenType.DISTRIBUTE_BY, exp.Distribute), + 724 "sort": lambda self: self._parse_sort(TokenType.SORT_BY, exp.Sort), + 725 "cluster": lambda self: self._parse_sort(TokenType.CLUSTER_BY, exp.Cluster), + 726 "order": lambda self: self._parse_order(), + 727 "limit": lambda self: self._parse_limit(), + 728 "offset": lambda self: self._parse_offset(), + 729 "lock": lambda self: self._parse_lock(), + 730 "sample": lambda self: self._parse_table_sample(as_modifier=True), + 731 } + 732 + 733 SET_PARSERS = { + 734 "GLOBAL": lambda self: self._parse_set_item_assignment("GLOBAL"), + 735 "LOCAL": lambda self: self._parse_set_item_assignment("LOCAL"), + 736 "SESSION": lambda self: self._parse_set_item_assignment("SESSION"), + 737 "TRANSACTION": lambda self: self._parse_set_transaction(), + 738 } 739 - 740 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 740 SHOW_PARSERS: t.Dict[str, t.Callable] = {} 741 - 742 TRANSACTION_CHARACTERISTICS = { - 743 "ISOLATION LEVEL REPEATABLE READ", - 744 "ISOLATION LEVEL READ COMMITTED", - 745 "ISOLATION LEVEL READ UNCOMMITTED", - 746 "ISOLATION LEVEL SERIALIZABLE", - 747 "READ WRITE", - 748 "READ ONLY", - 749 } - 750 - 751 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} - 752 - 753 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} - 754 - 755 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} + 742 TYPE_LITERAL_PARSERS: t.Dict[exp.DataType.Type, t.Callable] = {} + 743 + 744 MODIFIABLES = (exp.Subquery, exp.Subqueryable, exp.Table) + 745 + 746 TRANSACTION_KIND = {"DEFERRED", "IMMEDIATE", "EXCLUSIVE"} + 747 + 748 TRANSACTION_CHARACTERISTICS = { + 749 "ISOLATION LEVEL REPEATABLE READ", + 750 "ISOLATION LEVEL READ COMMITTED", + 751 "ISOLATION LEVEL READ UNCOMMITTED", + 752 "ISOLATION LEVEL SERIALIZABLE", + 753 "READ WRITE", + 754 "READ ONLY", + 755 } 756 - 757 STRICT_CAST = True + 757 INSERT_ALTERNATIVES = {"ABORT", "FAIL", "IGNORE", "REPLACE", "ROLLBACK"} 758 - 759 CONVERT_TYPE_FIRST = False - 760 - 761 QUOTED_PIVOT_COLUMNS: t.Optional[bool] = None - 762 PREFIXED_PIVOT_COLUMNS = False + 759 WINDOW_ALIAS_TOKENS = ID_VAR_TOKENS - {TokenType.ROWS} + 760 WINDOW_BEFORE_PAREN_TOKENS = {TokenType.OVER} + 761 + 762 ADD_CONSTRAINT_TOKENS = {TokenType.CONSTRAINT, TokenType.PRIMARY_KEY, TokenType.FOREIGN_KEY} 763 - 764 LOG_BASE_FIRST = True - 765 LOG_DEFAULTS_TO_LN = False - 766 - 767 __slots__ = ( - 768 "error_level", - 769 "error_message_context", - 770 "sql", - 771 "errors", - 772 "index_offset", - 773 "unnest_column_only", - 774 "alias_post_tablesample", - 775 "max_errors", - 776 "null_ordering", - 777 "_tokens", - 778 "_index", - 779 "_curr", - 780 "_next", - 781 "_prev", - 782 "_prev_comments", - 783 "_show_trie", - 784 "_set_trie", - 785 ) - 786 - 787 def __init__( - 788 self, - 789 error_level: t.Optional[ErrorLevel] = None, - 790 error_message_context: int = 100, - 791 index_offset: int = 0, - 792 unnest_column_only: bool = False, - 793 alias_post_tablesample: bool = False, - 794 max_errors: int = 3, - 795 null_ordering: t.Optional[str] = None, - 796 ): - 797 self.error_level = error_level or ErrorLevel.IMMEDIATE - 798 self.error_message_context = error_message_context - 799 self.index_offset = index_offset - 800 self.unnest_column_only = unnest_column_only - 801 self.alias_post_tablesample = alias_post_tablesample - 802 self.max_errors = max_errors - 803 self.null_ordering = null_ordering - 804 self.reset() - 805 - 806 def reset(self): - 807 self.sql = "" - 808 self.errors = [] - 809 self._tokens = [] - 810 self._index = 0 - 811 self._curr = None - 812 self._next = None - 813 self._prev = None - 814 self._prev_comments = None - 815 - 816 def parse( - 817 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None - 818 ) -> t.List[t.Optional[exp.Expression]]: - 819 """ - 820 Parses a list of tokens and returns a list of syntax trees, one tree - 821 per parsed SQL statement. + 764 STRICT_CAST = True + 765 + 766 CONVERT_TYPE_FIRST = False + 767 + 768 QUOTED_PIVOT_COLUMNS: t.Optional[bool] = None + 769 PREFIXED_PIVOT_COLUMNS = False + 770 + 771 LOG_BASE_FIRST = True + 772 LOG_DEFAULTS_TO_LN = False + 773 + 774 __slots__ = ( + 775 "error_level", + 776 "error_message_context", + 777 "sql", + 778 "errors", + 779 "index_offset", + 780 "unnest_column_only", + 781 "alias_post_tablesample", + 782 "max_errors", + 783 "null_ordering", + 784 "_tokens", + 785 "_index", + 786 "_curr", + 787 "_next", + 788 "_prev", + 789 "_prev_comments", + 790 "_show_trie", + 791 "_set_trie", + 792 ) + 793 + 794 def __init__( + 795 self, + 796 error_level: t.Optional[ErrorLevel] = None, + 797 error_message_context: int = 100, + 798 index_offset: int = 0, + 799 unnest_column_only: bool = False, + 800 alias_post_tablesample: bool = False, + 801 max_errors: int = 3, + 802 null_ordering: t.Optional[str] = None, + 803 ): + 804 self.error_level = error_level or ErrorLevel.IMMEDIATE + 805 self.error_message_context = error_message_context + 806 self.index_offset = index_offset + 807 self.unnest_column_only = unnest_column_only + 808 self.alias_post_tablesample = alias_post_tablesample + 809 self.max_errors = max_errors + 810 self.null_ordering = null_ordering + 811 self.reset() + 812 + 813 def reset(self): + 814 self.sql = "" + 815 self.errors = [] + 816 self._tokens = [] + 817 self._index = 0 + 818 self._curr = None + 819 self._next = None + 820 self._prev = None + 821 self._prev_comments = None 822 - 823 Args: - 824 raw_tokens: the list of tokens. - 825 sql: the original SQL string, used to produce helpful debug messages. - 826 - 827 Returns: - 828 The list of syntax trees. - 829 """ - 830 return self._parse( - 831 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql - 832 ) + 823 def parse( + 824 self, raw_tokens: t.List[Token], sql: t.Optional[str] = None + 825 ) -> t.List[t.Optional[exp.Expression]]: + 826 """ + 827 Parses a list of tokens and returns a list of syntax trees, one tree + 828 per parsed SQL statement. + 829 + 830 Args: + 831 raw_tokens: the list of tokens. + 832 sql: the original SQL string, used to produce helpful debug messages. 833 - 834 def parse_into( - 835 self, - 836 expression_types: exp.IntoType, - 837 raw_tokens: t.List[Token], - 838 sql: t.Optional[str] = None, - 839 ) -> t.List[t.Optional[exp.Expression]]: - 840 """ - 841 Parses a list of tokens into a given Expression type. If a collection of Expression - 842 types is given instead, this method will try to parse the token list into each one - 843 of them, stopping at the first for which the parsing succeeds. - 844 - 845 Args: - 846 expression_types: the expression type(s) to try and parse the token list into. - 847 raw_tokens: the list of tokens. - 848 sql: the original SQL string, used to produce helpful debug messages. - 849 - 850 Returns: - 851 The target Expression. - 852 """ - 853 errors = [] - 854 for expression_type in ensure_collection(expression_types): - 855 parser = self.EXPRESSION_PARSERS.get(expression_type) - 856 if not parser: - 857 raise TypeError(f"No parser registered for {expression_type}") - 858 try: - 859 return self._parse(parser, raw_tokens, sql) - 860 except ParseError as e: - 861 e.errors[0]["into_expression"] = expression_type - 862 errors.append(e) - 863 raise ParseError( - 864 f"Failed to parse into {expression_types}", - 865 errors=merge_errors(errors), - 866 ) from errors[-1] - 867 - 868 def _parse( - 869 self, - 870 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], - 871 raw_tokens: t.List[Token], - 872 sql: t.Optional[str] = None, - 873 ) -> t.List[t.Optional[exp.Expression]]: - 874 self.reset() - 875 self.sql = sql or "" - 876 total = len(raw_tokens) - 877 chunks: t.List[t.List[Token]] = [[]] - 878 - 879 for i, token in enumerate(raw_tokens): - 880 if token.token_type == TokenType.SEMICOLON: - 881 if i < total - 1: - 882 chunks.append([]) - 883 else: - 884 chunks[-1].append(token) + 834 Returns: + 835 The list of syntax trees. + 836 """ + 837 return self._parse( + 838 parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql + 839 ) + 840 + 841 def parse_into( + 842 self, + 843 expression_types: exp.IntoType, + 844 raw_tokens: t.List[Token], + 845 sql: t.Optional[str] = None, + 846 ) -> t.List[t.Optional[exp.Expression]]: + 847 """ + 848 Parses a list of tokens into a given Expression type. If a collection of Expression + 849 types is given instead, this method will try to parse the token list into each one + 850 of them, stopping at the first for which the parsing succeeds. + 851 + 852 Args: + 853 expression_types: the expression type(s) to try and parse the token list into. + 854 raw_tokens: the list of tokens. + 855 sql: the original SQL string, used to produce helpful debug messages. + 856 + 857 Returns: + 858 The target Expression. + 859 """ + 860 errors = [] + 861 for expression_type in ensure_collection(expression_types): + 862 parser = self.EXPRESSION_PARSERS.get(expression_type) + 863 if not parser: + 864 raise TypeError(f"No parser registered for {expression_type}") + 865 try: + 866 return self._parse(parser, raw_tokens, sql) + 867 except ParseError as e: + 868 e.errors[0]["into_expression"] = expression_type + 869 errors.append(e) + 870 raise ParseError( + 871 f"Failed to parse into {expression_types}", + 872 errors=merge_errors(errors), + 873 ) from errors[-1] + 874 + 875 def _parse( + 876 self, + 877 parse_method: t.Callable[[Parser], t.Optional[exp.Expression]], + 878 raw_tokens: t.List[Token], + 879 sql: t.Optional[str] = None, + 880 ) -> t.List[t.Optional[exp.Expression]]: + 881 self.reset() + 882 self.sql = sql or "" + 883 total = len(raw_tokens) + 884 chunks: t.List[t.List[Token]] = [[]] 885 - 886 expressions = [] - 887 - 888 for tokens in chunks: - 889 self._index = -1 - 890 self._tokens = tokens - 891 self._advance() + 886 for i, token in enumerate(raw_tokens): + 887 if token.token_type == TokenType.SEMICOLON: + 888 if i < total - 1: + 889 chunks.append([]) + 890 else: + 891 chunks[-1].append(token) 892 - 893 expressions.append(parse_method(self)) + 893 expressions = [] 894 - 895 if self._index < len(self._tokens): - 896 self.raise_error("Invalid expression / Unexpected token") - 897 - 898 self.check_errors() + 895 for tokens in chunks: + 896 self._index = -1 + 897 self._tokens = tokens + 898 self._advance() 899 - 900 return expressions + 900 expressions.append(parse_method(self)) 901 - 902 def check_errors(self) -> None: - 903 """ - 904 Logs or raises any found errors, depending on the chosen error level setting. - 905 """ - 906 if self.error_level == ErrorLevel.WARN: - 907 for error in self.errors: - 908 logger.error(str(error)) - 909 elif self.error_level == ErrorLevel.RAISE and self.errors: - 910 raise ParseError( - 911 concat_messages(self.errors, self.max_errors), - 912 errors=merge_errors(self.errors), - 913 ) - 914 - 915 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: - 916 """ - 917 Appends an error in the list of recorded errors or raises it, depending on the chosen - 918 error level setting. - 919 """ - 920 token = token or self._curr or self._prev or Token.string("") - 921 start = token.start - 922 end = token.end - 923 start_context = self.sql[max(start - self.error_message_context, 0) : start] - 924 highlight = self.sql[start:end] - 925 end_context = self.sql[end : end + self.error_message_context] - 926 - 927 error = ParseError.new( - 928 f"{message}. Line {token.line}, Col: {token.col}.\n" - 929 f" {start_context}\033[4m{highlight}\033[0m{end_context}", - 930 description=message, - 931 line=token.line, - 932 col=token.col, - 933 start_context=start_context, - 934 highlight=highlight, - 935 end_context=end_context, - 936 ) - 937 - 938 if self.error_level == ErrorLevel.IMMEDIATE: - 939 raise error - 940 - 941 self.errors.append(error) - 942 - 943 def expression( - 944 self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs - 945 ) -> E: - 946 """ - 947 Creates a new, validated Expression. - 948 - 949 Args: - 950 exp_class: the expression class to instantiate. - 951 comments: an optional list of comments to attach to the expression. - 952 kwargs: the arguments to set for the expression along with their respective values. - 953 - 954 Returns: - 955 The target expression. - 956 """ - 957 instance = exp_class(**kwargs) - 958 if self._prev_comments: - 959 instance.comments = self._prev_comments - 960 self._prev_comments = None - 961 if comments: - 962 instance.comments = comments - 963 self.validate_expression(instance) - 964 return instance - 965 - 966 def validate_expression( - 967 self, expression: exp.Expression, args: t.Optional[t.List] = None - 968 ) -> None: - 969 """ - 970 Validates an already instantiated expression, making sure that all its mandatory arguments - 971 are set. + 902 if self._index < len(self._tokens): + 903 self.raise_error("Invalid expression / Unexpected token") + 904 + 905 self.check_errors() + 906 + 907 return expressions + 908 + 909 def check_errors(self) -> None: + 910 """ + 911 Logs or raises any found errors, depending on the chosen error level setting. + 912 """ + 913 if self.error_level == ErrorLevel.WARN: + 914 for error in self.errors: + 915 logger.error(str(error)) + 916 elif self.error_level == ErrorLevel.RAISE and self.errors: + 917 raise ParseError( + 918 concat_messages(self.errors, self.max_errors), + 919 errors=merge_errors(self.errors), + 920 ) + 921 + 922 def raise_error(self, message: str, token: t.Optional[Token] = None) -> None: + 923 """ + 924 Appends an error in the list of recorded errors or raises it, depending on the chosen + 925 error level setting. + 926 """ + 927 token = token or self._curr or self._prev or Token.string("") + 928 start = token.start + 929 end = token.end + 930 start_context = self.sql[max(start - self.error_message_context, 0) : start] + 931 highlight = self.sql[start:end] + 932 end_context = self.sql[end : end + self.error_message_context] + 933 + 934 error = ParseError.new( + 935 f"{message}. Line {token.line}, Col: {token.col}.\n" + 936 f" {start_context}\033[4m{highlight}\033[0m{end_context}", + 937 description=message, + 938 line=token.line, + 939 col=token.col, + 940 start_context=start_context, + 941 highlight=highlight, + 942 end_context=end_context, + 943 ) + 944 + 945 if self.error_level == ErrorLevel.IMMEDIATE: + 946 raise error + 947 + 948 self.errors.append(error) + 949 + 950 def expression( + 951 self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs + 952 ) -> E: + 953 """ + 954 Creates a new, validated Expression. + 955 + 956 Args: + 957 exp_class: the expression class to instantiate. + 958 comments: an optional list of comments to attach to the expression. + 959 kwargs: the arguments to set for the expression along with their respective values. + 960 + 961 Returns: + 962 The target expression. + 963 """ + 964 instance = exp_class(**kwargs) + 965 if self._prev_comments: + 966 instance.comments = self._prev_comments + 967 self._prev_comments = None + 968 if comments: + 969 instance.comments = comments + 970 self.validate_expression(instance) + 971 return instance 972 - 973 Args: - 974 expression: the expression to validate. - 975 args: an optional list of items that was used to instantiate the expression, if it's a Func. - 976 """ - 977 if self.error_level == ErrorLevel.IGNORE: - 978 return + 973 def validate_expression( + 974 self, expression: exp.Expression, args: t.Optional[t.List] = None + 975 ) -> None: + 976 """ + 977 Validates an already instantiated expression, making sure that all its mandatory arguments + 978 are set. 979 - 980 for error_message in expression.error_messages(args): - 981 self.raise_error(error_message) - 982 - 983 def _find_sql(self, start: Token, end: Token) -> str: - 984 return self.sql[start.start : end.end] - 985 - 986 def _advance(self, times: int = 1) -> None: - 987 self._index += times - 988 self._curr = seq_get(self._tokens, self._index) - 989 self._next = seq_get(self._tokens, self._index + 1) - 990 if self._index > 0: - 991 self._prev = self._tokens[self._index - 1] - 992 self._prev_comments = self._prev.comments - 993 else: - 994 self._prev = None - 995 self._prev_comments = None - 996 - 997 def _retreat(self, index: int) -> None: - 998 if index != self._index: - 999 self._advance(index - self._index) -1000 -1001 def _parse_command(self) -> exp.Command: -1002 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) + 980 Args: + 981 expression: the expression to validate. + 982 args: an optional list of items that was used to instantiate the expression, if it's a Func. + 983 """ + 984 if self.error_level == ErrorLevel.IGNORE: + 985 return + 986 + 987 for error_message in expression.error_messages(args): + 988 self.raise_error(error_message) + 989 + 990 def _find_sql(self, start: Token, end: Token) -> str: + 991 return self.sql[start.start : end.end] + 992 + 993 def _advance(self, times: int = 1) -> None: + 994 self._index += times + 995 self._curr = seq_get(self._tokens, self._index) + 996 self._next = seq_get(self._tokens, self._index + 1) + 997 if self._index > 0: + 998 self._prev = self._tokens[self._index - 1] + 999 self._prev_comments = self._prev.comments +1000 else: +1001 self._prev = None +1002 self._prev_comments = None 1003 -1004 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: -1005 start = self._prev -1006 exists = self._parse_exists() if allow_exists else None +1004 def _retreat(self, index: int) -> None: +1005 if index != self._index: +1006 self._advance(index - self._index) 1007 -1008 self._match(TokenType.ON) -1009 -1010 kind = self._match_set(self.CREATABLES) and self._prev -1011 -1012 if not kind: -1013 return self._parse_as_command(start) +1008 def _parse_command(self) -> exp.Command: +1009 return self.expression(exp.Command, this=self._prev.text, expression=self._parse_string()) +1010 +1011 def _parse_comment(self, allow_exists: bool = True) -> exp.Expression: +1012 start = self._prev +1013 exists = self._parse_exists() if allow_exists else None 1014 -1015 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1016 this = self._parse_user_defined_function(kind=kind.token_type) -1017 elif kind.token_type == TokenType.TABLE: -1018 this = self._parse_table(alias_tokens=self.COMMENT_TABLE_ALIAS_TOKENS) -1019 elif kind.token_type == TokenType.COLUMN: -1020 this = self._parse_column() -1021 else: -1022 this = self._parse_id_var() -1023 -1024 self._match(TokenType.IS) -1025 -1026 return self.expression( -1027 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists -1028 ) -1029 -1030 def _parse_statement(self) -> t.Optional[exp.Expression]: -1031 if self._curr is None: -1032 return None -1033 -1034 if self._match_set(self.STATEMENT_PARSERS): -1035 return self.STATEMENT_PARSERS[self._prev.token_type](self) +1015 self._match(TokenType.ON) +1016 +1017 kind = self._match_set(self.CREATABLES) and self._prev +1018 +1019 if not kind: +1020 return self._parse_as_command(start) +1021 +1022 if kind.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1023 this = self._parse_user_defined_function(kind=kind.token_type) +1024 elif kind.token_type == TokenType.TABLE: +1025 this = self._parse_table(alias_tokens=self.COMMENT_TABLE_ALIAS_TOKENS) +1026 elif kind.token_type == TokenType.COLUMN: +1027 this = self._parse_column() +1028 else: +1029 this = self._parse_id_var() +1030 +1031 self._match(TokenType.IS) +1032 +1033 return self.expression( +1034 exp.Comment, this=this, kind=kind.text, expression=self._parse_string(), exists=exists +1035 ) 1036 -1037 if self._match_set(Tokenizer.COMMANDS): -1038 return self._parse_command() -1039 -1040 expression = self._parse_expression() -1041 expression = self._parse_set_operations(expression) if expression else self._parse_select() -1042 -1043 self._parse_query_modifiers(expression) -1044 return expression -1045 -1046 def _parse_drop(self) -> t.Optional[exp.Drop | exp.Command]: -1047 start = self._prev -1048 temporary = self._match(TokenType.TEMPORARY) -1049 materialized = self._match(TokenType.MATERIALIZED) -1050 kind = self._match_set(self.CREATABLES) and self._prev.text -1051 if not kind: -1052 return self._parse_as_command(start) -1053 -1054 return self.expression( -1055 exp.Drop, -1056 exists=self._parse_exists(), -1057 this=self._parse_table(schema=True), -1058 kind=kind, -1059 temporary=temporary, -1060 materialized=materialized, -1061 cascade=self._match(TokenType.CASCADE), -1062 constraints=self._match_text_seq("CONSTRAINTS"), -1063 purge=self._match_text_seq("PURGE"), -1064 ) -1065 -1066 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: -1067 return ( -1068 self._match(TokenType.IF) -1069 and (not not_ or self._match(TokenType.NOT)) -1070 and self._match(TokenType.EXISTS) +1037 def _parse_statement(self) -> t.Optional[exp.Expression]: +1038 if self._curr is None: +1039 return None +1040 +1041 if self._match_set(self.STATEMENT_PARSERS): +1042 return self.STATEMENT_PARSERS[self._prev.token_type](self) +1043 +1044 if self._match_set(Tokenizer.COMMANDS): +1045 return self._parse_command() +1046 +1047 expression = self._parse_expression() +1048 expression = self._parse_set_operations(expression) if expression else self._parse_select() +1049 +1050 self._parse_query_modifiers(expression) +1051 return expression +1052 +1053 def _parse_drop(self) -> t.Optional[exp.Drop | exp.Command]: +1054 start = self._prev +1055 temporary = self._match(TokenType.TEMPORARY) +1056 materialized = self._match(TokenType.MATERIALIZED) +1057 kind = self._match_set(self.CREATABLES) and self._prev.text +1058 if not kind: +1059 return self._parse_as_command(start) +1060 +1061 return self.expression( +1062 exp.Drop, +1063 exists=self._parse_exists(), +1064 this=self._parse_table(schema=True), +1065 kind=kind, +1066 temporary=temporary, +1067 materialized=materialized, +1068 cascade=self._match(TokenType.CASCADE), +1069 constraints=self._match_text_seq("CONSTRAINTS"), +1070 purge=self._match_text_seq("PURGE"), 1071 ) 1072 -1073 def _parse_create(self) -> t.Optional[exp.Expression]: -1074 start = self._prev -1075 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( -1076 TokenType.OR, TokenType.REPLACE -1077 ) -1078 unique = self._match(TokenType.UNIQUE) +1073 def _parse_exists(self, not_: bool = False) -> t.Optional[bool]: +1074 return ( +1075 self._match(TokenType.IF) +1076 and (not not_ or self._match(TokenType.NOT)) +1077 and self._match(TokenType.EXISTS) +1078 ) 1079 -1080 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): -1081 self._match(TokenType.TABLE) -1082 -1083 properties = None -1084 create_token = self._match_set(self.CREATABLES) and self._prev -1085 -1086 if not create_token: -1087 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE -1088 create_token = self._match_set(self.CREATABLES) and self._prev +1080 def _parse_create(self) -> t.Optional[exp.Expression]: +1081 start = self._prev +1082 replace = self._prev.text.upper() == "REPLACE" or self._match_pair( +1083 TokenType.OR, TokenType.REPLACE +1084 ) +1085 unique = self._match(TokenType.UNIQUE) +1086 +1087 if self._match_pair(TokenType.TABLE, TokenType.FUNCTION, advance=False): +1088 self._match(TokenType.TABLE) 1089 -1090 if not properties or not create_token: -1091 return self._parse_as_command(start) +1090 properties = None +1091 create_token = self._match_set(self.CREATABLES) and self._prev 1092 -1093 exists = self._parse_exists(not_=True) -1094 this = None -1095 expression = None -1096 indexes = None -1097 no_schema_binding = None -1098 begin = None +1093 if not create_token: +1094 properties = self._parse_properties() # exp.Properties.Location.POST_CREATE +1095 create_token = self._match_set(self.CREATABLES) and self._prev +1096 +1097 if not properties or not create_token: +1098 return self._parse_as_command(start) 1099 -1100 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): -1101 this = self._parse_user_defined_function(kind=create_token.token_type) -1102 temp_properties = self._parse_properties() -1103 if properties and temp_properties: -1104 properties.expressions.extend(temp_properties.expressions) -1105 elif temp_properties: -1106 properties = temp_properties -1107 -1108 self._match(TokenType.ALIAS) -1109 begin = self._match(TokenType.BEGIN) -1110 return_ = self._match_text_seq("RETURN") -1111 expression = self._parse_statement() -1112 -1113 if return_: -1114 expression = self.expression(exp.Return, this=expression) -1115 elif create_token.token_type == TokenType.INDEX: -1116 this = self._parse_index() -1117 elif create_token.token_type in self.DB_CREATABLES: -1118 table_parts = self._parse_table_parts(schema=True) +1100 exists = self._parse_exists(not_=True) +1101 this = None +1102 expression = None +1103 indexes = None +1104 no_schema_binding = None +1105 begin = None +1106 +1107 if create_token.token_type in (TokenType.FUNCTION, TokenType.PROCEDURE): +1108 this = self._parse_user_defined_function(kind=create_token.token_type) +1109 temp_properties = self._parse_properties() +1110 if properties and temp_properties: +1111 properties.expressions.extend(temp_properties.expressions) +1112 elif temp_properties: +1113 properties = temp_properties +1114 +1115 self._match(TokenType.ALIAS) +1116 begin = self._match(TokenType.BEGIN) +1117 return_ = self._match_text_seq("RETURN") +1118 expression = self._parse_statement() 1119 -1120 # exp.Properties.Location.POST_NAME -1121 if self._match(TokenType.COMMA): -1122 temp_properties = self._parse_properties(before=True) -1123 if properties and temp_properties: -1124 properties.expressions.extend(temp_properties.expressions) -1125 elif temp_properties: -1126 properties = temp_properties -1127 -1128 this = self._parse_schema(this=table_parts) -1129 -1130 # exp.Properties.Location.POST_SCHEMA and POST_WITH -1131 temp_properties = self._parse_properties() -1132 if properties and temp_properties: -1133 properties.expressions.extend(temp_properties.expressions) -1134 elif temp_properties: -1135 properties = temp_properties +1120 if return_: +1121 expression = self.expression(exp.Return, this=expression) +1122 elif create_token.token_type == TokenType.INDEX: +1123 this = self._parse_index() +1124 elif create_token.token_type in self.DB_CREATABLES: +1125 table_parts = self._parse_table_parts(schema=True) +1126 +1127 # exp.Properties.Location.POST_NAME +1128 if self._match(TokenType.COMMA): +1129 temp_properties = self._parse_properties(before=True) +1130 if properties and temp_properties: +1131 properties.expressions.extend(temp_properties.expressions) +1132 elif temp_properties: +1133 properties = temp_properties +1134 +1135 this = self._parse_schema(this=table_parts) 1136 -1137 self._match(TokenType.ALIAS) -1138 -1139 # exp.Properties.Location.POST_ALIAS -1140 if not ( -1141 self._match(TokenType.SELECT, advance=False) -1142 or self._match(TokenType.WITH, advance=False) -1143 or self._match(TokenType.L_PAREN, advance=False) -1144 ): -1145 temp_properties = self._parse_properties() -1146 if properties and temp_properties: -1147 properties.expressions.extend(temp_properties.expressions) -1148 elif temp_properties: -1149 properties = temp_properties -1150 -1151 expression = self._parse_ddl_select() -1152 -1153 if create_token.token_type == TokenType.TABLE: -1154 # exp.Properties.Location.POST_EXPRESSION -1155 temp_properties = self._parse_properties() -1156 if properties and temp_properties: -1157 properties.expressions.extend(temp_properties.expressions) -1158 elif temp_properties: -1159 properties = temp_properties -1160 -1161 indexes = [] -1162 while True: -1163 index = self._parse_create_table_index() -1164 -1165 # exp.Properties.Location.POST_INDEX -1166 if self._match(TokenType.PARTITION_BY, advance=False): -1167 temp_properties = self._parse_properties() -1168 if properties and temp_properties: -1169 properties.expressions.extend(temp_properties.expressions) -1170 elif temp_properties: -1171 properties = temp_properties -1172 -1173 if not index: -1174 break -1175 else: -1176 indexes.append(index) -1177 elif create_token.token_type == TokenType.VIEW: -1178 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): -1179 no_schema_binding = True -1180 -1181 return self.expression( -1182 exp.Create, -1183 this=this, -1184 kind=create_token.text, -1185 replace=replace, -1186 unique=unique, -1187 expression=expression, -1188 exists=exists, -1189 properties=properties, -1190 indexes=indexes, -1191 no_schema_binding=no_schema_binding, -1192 begin=begin, -1193 ) -1194 -1195 def _parse_property_before(self) -> t.Optional[exp.Expression]: -1196 self._match(TokenType.COMMA) -1197 -1198 # parsers look to _prev for no/dual/default, so need to consume first -1199 self._match_text_seq("NO") -1200 self._match_text_seq("DUAL") -1201 self._match_text_seq("DEFAULT") -1202 -1203 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): -1204 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) -1205 -1206 return None -1207 -1208 def _parse_property(self) -> t.Optional[exp.Expression]: -1209 if self._match_texts(self.PROPERTY_PARSERS): -1210 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) -1211 -1212 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): -1213 return self._parse_character_set(default=True) +1137 # exp.Properties.Location.POST_SCHEMA and POST_WITH +1138 temp_properties = self._parse_properties() +1139 if properties and temp_properties: +1140 properties.expressions.extend(temp_properties.expressions) +1141 elif temp_properties: +1142 properties = temp_properties +1143 +1144 self._match(TokenType.ALIAS) +1145 +1146 # exp.Properties.Location.POST_ALIAS +1147 if not ( +1148 self._match(TokenType.SELECT, advance=False) +1149 or self._match(TokenType.WITH, advance=False) +1150 or self._match(TokenType.L_PAREN, advance=False) +1151 ): +1152 temp_properties = self._parse_properties() +1153 if properties and temp_properties: +1154 properties.expressions.extend(temp_properties.expressions) +1155 elif temp_properties: +1156 properties = temp_properties +1157 +1158 expression = self._parse_ddl_select() +1159 +1160 if create_token.token_type == TokenType.TABLE: +1161 # exp.Properties.Location.POST_EXPRESSION +1162 temp_properties = self._parse_properties() +1163 if properties and temp_properties: +1164 properties.expressions.extend(temp_properties.expressions) +1165 elif temp_properties: +1166 properties = temp_properties +1167 +1168 indexes = [] +1169 while True: +1170 index = self._parse_create_table_index() +1171 +1172 # exp.Properties.Location.POST_INDEX +1173 if self._match(TokenType.PARTITION_BY, advance=False): +1174 temp_properties = self._parse_properties() +1175 if properties and temp_properties: +1176 properties.expressions.extend(temp_properties.expressions) +1177 elif temp_properties: +1178 properties = temp_properties +1179 +1180 if not index: +1181 break +1182 else: +1183 indexes.append(index) +1184 elif create_token.token_type == TokenType.VIEW: +1185 if self._match_text_seq("WITH", "NO", "SCHEMA", "BINDING"): +1186 no_schema_binding = True +1187 +1188 return self.expression( +1189 exp.Create, +1190 this=this, +1191 kind=create_token.text, +1192 replace=replace, +1193 unique=unique, +1194 expression=expression, +1195 exists=exists, +1196 properties=properties, +1197 indexes=indexes, +1198 no_schema_binding=no_schema_binding, +1199 begin=begin, +1200 ) +1201 +1202 def _parse_property_before(self) -> t.Optional[exp.Expression]: +1203 self._match(TokenType.COMMA) +1204 +1205 # parsers look to _prev for no/dual/default, so need to consume first +1206 self._match_text_seq("NO") +1207 self._match_text_seq("DUAL") +1208 self._match_text_seq("DEFAULT") +1209 +1210 if self.PROPERTY_PARSERS.get(self._curr.text.upper()): +1211 return self.PROPERTY_PARSERS[self._curr.text.upper()](self) +1212 +1213 return None 1214 -1215 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): -1216 return self._parse_sortkey(compound=True) -1217 -1218 if self._match_text_seq("SQL", "SECURITY"): -1219 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) -1220 -1221 assignment = self._match_pair( -1222 TokenType.VAR, TokenType.EQ, advance=False -1223 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) +1215 def _parse_property(self) -> t.Optional[exp.Expression]: +1216 if self._match_texts(self.PROPERTY_PARSERS): +1217 return self.PROPERTY_PARSERS[self._prev.text.upper()](self) +1218 +1219 if self._match_pair(TokenType.DEFAULT, TokenType.CHARACTER_SET): +1220 return self._parse_character_set(default=True) +1221 +1222 if self._match_pair(TokenType.COMPOUND, TokenType.SORTKEY): +1223 return self._parse_sortkey(compound=True) 1224 -1225 if assignment: -1226 key = self._parse_var_or_string() -1227 self._match(TokenType.EQ) -1228 return self.expression(exp.Property, this=key, value=self._parse_column()) -1229 -1230 return None +1225 if self._match_text_seq("SQL", "SECURITY"): +1226 return self.expression(exp.SqlSecurityProperty, definer=self._match_text_seq("DEFINER")) +1227 +1228 assignment = self._match_pair( +1229 TokenType.VAR, TokenType.EQ, advance=False +1230 ) or self._match_pair(TokenType.STRING, TokenType.EQ, advance=False) 1231 -1232 def _parse_stored(self) -> exp.Expression: -1233 self._match(TokenType.ALIAS) -1234 -1235 input_format = self._parse_string() if self._match_text_seq("INPUTFORMAT") else None -1236 output_format = self._parse_string() if self._match_text_seq("OUTPUTFORMAT") else None -1237 -1238 return self.expression( -1239 exp.FileFormatProperty, -1240 this=self.expression( -1241 exp.InputOutputFormat, input_format=input_format, output_format=output_format -1242 ) -1243 if input_format or output_format -1244 else self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1245 ) -1246 -1247 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: -1248 self._match(TokenType.EQ) -1249 self._match(TokenType.ALIAS) -1250 return self.expression( -1251 exp_class, -1252 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), -1253 ) -1254 -1255 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: -1256 properties = [] -1257 -1258 while True: -1259 if before: -1260 identified_property = self._parse_property_before() -1261 else: -1262 identified_property = self._parse_property() -1263 -1264 if not identified_property: -1265 break -1266 for p in ensure_list(identified_property): -1267 properties.append(p) -1268 -1269 if properties: -1270 return self.expression(exp.Properties, expressions=properties) -1271 -1272 return None -1273 -1274 def _parse_fallback(self, no=False) -> exp.Expression: -1275 self._match_text_seq("FALLBACK") -1276 return self.expression( -1277 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") -1278 ) -1279 -1280 def _parse_volatile_property(self) -> exp.Expression: -1281 if self._index >= 2: -1282 pre_volatile_token = self._tokens[self._index - 2] -1283 else: -1284 pre_volatile_token = None -1285 -1286 if pre_volatile_token and pre_volatile_token.token_type in ( -1287 TokenType.CREATE, -1288 TokenType.REPLACE, -1289 TokenType.UNIQUE, -1290 ): -1291 return exp.VolatileProperty() +1232 if assignment: +1233 key = self._parse_var_or_string() +1234 self._match(TokenType.EQ) +1235 return self.expression(exp.Property, this=key, value=self._parse_column()) +1236 +1237 return None +1238 +1239 def _parse_stored(self) -> exp.Expression: +1240 self._match(TokenType.ALIAS) +1241 +1242 input_format = self._parse_string() if self._match_text_seq("INPUTFORMAT") else None +1243 output_format = self._parse_string() if self._match_text_seq("OUTPUTFORMAT") else None +1244 +1245 return self.expression( +1246 exp.FileFormatProperty, +1247 this=self.expression( +1248 exp.InputOutputFormat, input_format=input_format, output_format=output_format +1249 ) +1250 if input_format or output_format +1251 else self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1252 ) +1253 +1254 def _parse_property_assignment(self, exp_class: t.Type[exp.Expression]) -> exp.Expression: +1255 self._match(TokenType.EQ) +1256 self._match(TokenType.ALIAS) +1257 return self.expression( +1258 exp_class, +1259 this=self._parse_var_or_string() or self._parse_number() or self._parse_id_var(), +1260 ) +1261 +1262 def _parse_properties(self, before=None) -> t.Optional[exp.Expression]: +1263 properties = [] +1264 +1265 while True: +1266 if before: +1267 identified_property = self._parse_property_before() +1268 else: +1269 identified_property = self._parse_property() +1270 +1271 if not identified_property: +1272 break +1273 for p in ensure_list(identified_property): +1274 properties.append(p) +1275 +1276 if properties: +1277 return self.expression(exp.Properties, expressions=properties) +1278 +1279 return None +1280 +1281 def _parse_fallback(self, no=False) -> exp.Expression: +1282 self._match_text_seq("FALLBACK") +1283 return self.expression( +1284 exp.FallbackProperty, no=no, protection=self._match_text_seq("PROTECTION") +1285 ) +1286 +1287 def _parse_volatile_property(self) -> exp.Expression: +1288 if self._index >= 2: +1289 pre_volatile_token = self._tokens[self._index - 2] +1290 else: +1291 pre_volatile_token = None 1292 -1293 return self.expression(exp.StabilityProperty, this=exp.Literal.string("VOLATILE")) -1294 -1295 def _parse_with_property( -1296 self, -1297 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: -1298 self._match(TokenType.WITH) -1299 if self._match(TokenType.L_PAREN, advance=False): -1300 return self._parse_wrapped_csv(self._parse_property) +1293 if pre_volatile_token and pre_volatile_token.token_type in ( +1294 TokenType.CREATE, +1295 TokenType.REPLACE, +1296 TokenType.UNIQUE, +1297 ): +1298 return exp.VolatileProperty() +1299 +1300 return self.expression(exp.StabilityProperty, this=exp.Literal.string("VOLATILE")) 1301 -1302 if self._match_text_seq("JOURNAL"): -1303 return self._parse_withjournaltable() -1304 -1305 if self._match_text_seq("DATA"): -1306 return self._parse_withdata(no=False) -1307 elif self._match_text_seq("NO", "DATA"): -1308 return self._parse_withdata(no=True) -1309 -1310 if not self._next: -1311 return None -1312 -1313 return self._parse_withisolatedloading() -1314 -1315 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html -1316 def _parse_definer(self) -> t.Optional[exp.Expression]: -1317 self._match(TokenType.EQ) -1318 -1319 user = self._parse_id_var() -1320 self._match(TokenType.PARAMETER) -1321 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) -1322 -1323 if not user or not host: -1324 return None +1302 def _parse_with_property( +1303 self, +1304 ) -> t.Union[t.Optional[exp.Expression], t.List[t.Optional[exp.Expression]]]: +1305 self._match(TokenType.WITH) +1306 if self._match(TokenType.L_PAREN, advance=False): +1307 return self._parse_wrapped_csv(self._parse_property) +1308 +1309 if self._match_text_seq("JOURNAL"): +1310 return self._parse_withjournaltable() +1311 +1312 if self._match_text_seq("DATA"): +1313 return self._parse_withdata(no=False) +1314 elif self._match_text_seq("NO", "DATA"): +1315 return self._parse_withdata(no=True) +1316 +1317 if not self._next: +1318 return None +1319 +1320 return self._parse_withisolatedloading() +1321 +1322 # https://dev.mysql.com/doc/refman/8.0/en/create-view.html +1323 def _parse_definer(self) -> t.Optional[exp.Expression]: +1324 self._match(TokenType.EQ) 1325 -1326 return exp.DefinerProperty(this=f"{user}@{host}") -1327 -1328 def _parse_withjournaltable(self) -> exp.Expression: -1329 self._match(TokenType.TABLE) -1330 self._match(TokenType.EQ) -1331 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1326 user = self._parse_id_var() +1327 self._match(TokenType.PARAMETER) +1328 host = self._parse_id_var() or (self._match(TokenType.MOD) and self._prev.text) +1329 +1330 if not user or not host: +1331 return None 1332 -1333 def _parse_log(self, no=False) -> exp.Expression: -1334 self._match_text_seq("LOG") -1335 return self.expression(exp.LogProperty, no=no) -1336 -1337 def _parse_journal(self, no=False, dual=False) -> exp.Expression: -1338 before = self._match_text_seq("BEFORE") -1339 self._match_text_seq("JOURNAL") -1340 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) -1341 -1342 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: -1343 self._match_text_seq("NOT") -1344 self._match_text_seq("LOCAL") -1345 self._match_text_seq("AFTER", "JOURNAL") -1346 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) -1347 -1348 def _parse_checksum(self) -> exp.Expression: -1349 self._match_text_seq("CHECKSUM") -1350 self._match(TokenType.EQ) -1351 -1352 on = None -1353 if self._match(TokenType.ON): -1354 on = True -1355 elif self._match_text_seq("OFF"): -1356 on = False -1357 default = self._match(TokenType.DEFAULT) +1333 return exp.DefinerProperty(this=f"{user}@{host}") +1334 +1335 def _parse_withjournaltable(self) -> exp.Expression: +1336 self._match(TokenType.TABLE) +1337 self._match(TokenType.EQ) +1338 return self.expression(exp.WithJournalTableProperty, this=self._parse_table_parts()) +1339 +1340 def _parse_log(self, no=False) -> exp.Expression: +1341 self._match_text_seq("LOG") +1342 return self.expression(exp.LogProperty, no=no) +1343 +1344 def _parse_journal(self, no=False, dual=False) -> exp.Expression: +1345 before = self._match_text_seq("BEFORE") +1346 self._match_text_seq("JOURNAL") +1347 return self.expression(exp.JournalProperty, no=no, dual=dual, before=before) +1348 +1349 def _parse_afterjournal(self, no=False, dual=False, local=None) -> exp.Expression: +1350 self._match_text_seq("NOT") +1351 self._match_text_seq("LOCAL") +1352 self._match_text_seq("AFTER", "JOURNAL") +1353 return self.expression(exp.AfterJournalProperty, no=no, dual=dual, local=local) +1354 +1355 def _parse_checksum(self) -> exp.Expression: +1356 self._match_text_seq("CHECKSUM") +1357 self._match(TokenType.EQ) 1358 -1359 return self.expression( -1360 exp.ChecksumProperty, -1361 on=on, -1362 default=default, -1363 ) -1364 -1365 def _parse_freespace(self) -> exp.Expression: -1366 self._match_text_seq("FREESPACE") -1367 self._match(TokenType.EQ) -1368 return self.expression( -1369 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1359 on = None +1360 if self._match(TokenType.ON): +1361 on = True +1362 elif self._match_text_seq("OFF"): +1363 on = False +1364 default = self._match(TokenType.DEFAULT) +1365 +1366 return self.expression( +1367 exp.ChecksumProperty, +1368 on=on, +1369 default=default, 1370 ) 1371 -1372 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: -1373 self._match_text_seq("MERGEBLOCKRATIO") -1374 if self._match(TokenType.EQ): -1375 return self.expression( -1376 exp.MergeBlockRatioProperty, -1377 this=self._parse_number(), -1378 percent=self._match(TokenType.PERCENT), -1379 ) -1380 else: -1381 return self.expression( -1382 exp.MergeBlockRatioProperty, -1383 no=no, -1384 default=default, -1385 ) -1386 -1387 def _parse_datablocksize(self, default=None) -> exp.Expression: -1388 if default: -1389 self._match_text_seq("DATABLOCKSIZE") -1390 return self.expression(exp.DataBlocksizeProperty, default=True) -1391 elif self._match_texts(("MIN", "MINIMUM")): -1392 self._match_text_seq("DATABLOCKSIZE") -1393 return self.expression(exp.DataBlocksizeProperty, min=True) -1394 elif self._match_texts(("MAX", "MAXIMUM")): -1395 self._match_text_seq("DATABLOCKSIZE") -1396 return self.expression(exp.DataBlocksizeProperty, min=False) -1397 -1398 self._match_text_seq("DATABLOCKSIZE") -1399 self._match(TokenType.EQ) -1400 size = self._parse_number() -1401 units = None -1402 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): -1403 units = self._prev.text -1404 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) -1405 -1406 def _parse_blockcompression(self) -> exp.Expression: -1407 self._match_text_seq("BLOCKCOMPRESSION") -1408 self._match(TokenType.EQ) -1409 always = self._match_text_seq("ALWAYS") -1410 manual = self._match_text_seq("MANUAL") -1411 never = self._match_text_seq("NEVER") -1412 default = self._match_text_seq("DEFAULT") -1413 autotemp = None -1414 if self._match_text_seq("AUTOTEMP"): -1415 autotemp = self._parse_schema() -1416 -1417 return self.expression( -1418 exp.BlockCompressionProperty, -1419 always=always, -1420 manual=manual, -1421 never=never, -1422 default=default, -1423 autotemp=autotemp, -1424 ) -1425 -1426 def _parse_withisolatedloading(self) -> exp.Expression: -1427 no = self._match_text_seq("NO") -1428 concurrent = self._match_text_seq("CONCURRENT") -1429 self._match_text_seq("ISOLATED", "LOADING") -1430 for_all = self._match_text_seq("FOR", "ALL") -1431 for_insert = self._match_text_seq("FOR", "INSERT") -1432 for_none = self._match_text_seq("FOR", "NONE") -1433 return self.expression( -1434 exp.IsolatedLoadingProperty, -1435 no=no, -1436 concurrent=concurrent, -1437 for_all=for_all, -1438 for_insert=for_insert, -1439 for_none=for_none, -1440 ) -1441 -1442 def _parse_locking(self) -> exp.Expression: -1443 if self._match(TokenType.TABLE): -1444 kind = "TABLE" -1445 elif self._match(TokenType.VIEW): -1446 kind = "VIEW" -1447 elif self._match(TokenType.ROW): -1448 kind = "ROW" -1449 elif self._match_text_seq("DATABASE"): -1450 kind = "DATABASE" -1451 else: -1452 kind = None -1453 -1454 if kind in ("DATABASE", "TABLE", "VIEW"): -1455 this = self._parse_table_parts() -1456 else: -1457 this = None -1458 -1459 if self._match(TokenType.FOR): -1460 for_or_in = "FOR" -1461 elif self._match(TokenType.IN): -1462 for_or_in = "IN" +1372 def _parse_freespace(self) -> exp.Expression: +1373 self._match_text_seq("FREESPACE") +1374 self._match(TokenType.EQ) +1375 return self.expression( +1376 exp.FreespaceProperty, this=self._parse_number(), percent=self._match(TokenType.PERCENT) +1377 ) +1378 +1379 def _parse_mergeblockratio(self, no=False, default=False) -> exp.Expression: +1380 self._match_text_seq("MERGEBLOCKRATIO") +1381 if self._match(TokenType.EQ): +1382 return self.expression( +1383 exp.MergeBlockRatioProperty, +1384 this=self._parse_number(), +1385 percent=self._match(TokenType.PERCENT), +1386 ) +1387 else: +1388 return self.expression( +1389 exp.MergeBlockRatioProperty, +1390 no=no, +1391 default=default, +1392 ) +1393 +1394 def _parse_datablocksize(self, default=None) -> exp.Expression: +1395 if default: +1396 self._match_text_seq("DATABLOCKSIZE") +1397 return self.expression(exp.DataBlocksizeProperty, default=True) +1398 elif self._match_texts(("MIN", "MINIMUM")): +1399 self._match_text_seq("DATABLOCKSIZE") +1400 return self.expression(exp.DataBlocksizeProperty, min=True) +1401 elif self._match_texts(("MAX", "MAXIMUM")): +1402 self._match_text_seq("DATABLOCKSIZE") +1403 return self.expression(exp.DataBlocksizeProperty, min=False) +1404 +1405 self._match_text_seq("DATABLOCKSIZE") +1406 self._match(TokenType.EQ) +1407 size = self._parse_number() +1408 units = None +1409 if self._match_texts(("BYTES", "KBYTES", "KILOBYTES")): +1410 units = self._prev.text +1411 return self.expression(exp.DataBlocksizeProperty, size=size, units=units) +1412 +1413 def _parse_blockcompression(self) -> exp.Expression: +1414 self._match_text_seq("BLOCKCOMPRESSION") +1415 self._match(TokenType.EQ) +1416 always = self._match_text_seq("ALWAYS") +1417 manual = self._match_text_seq("MANUAL") +1418 never = self._match_text_seq("NEVER") +1419 default = self._match_text_seq("DEFAULT") +1420 autotemp = None +1421 if self._match_text_seq("AUTOTEMP"): +1422 autotemp = self._parse_schema() +1423 +1424 return self.expression( +1425 exp.BlockCompressionProperty, +1426 always=always, +1427 manual=manual, +1428 never=never, +1429 default=default, +1430 autotemp=autotemp, +1431 ) +1432 +1433 def _parse_withisolatedloading(self) -> exp.Expression: +1434 no = self._match_text_seq("NO") +1435 concurrent = self._match_text_seq("CONCURRENT") +1436 self._match_text_seq("ISOLATED", "LOADING") +1437 for_all = self._match_text_seq("FOR", "ALL") +1438 for_insert = self._match_text_seq("FOR", "INSERT") +1439 for_none = self._match_text_seq("FOR", "NONE") +1440 return self.expression( +1441 exp.IsolatedLoadingProperty, +1442 no=no, +1443 concurrent=concurrent, +1444 for_all=for_all, +1445 for_insert=for_insert, +1446 for_none=for_none, +1447 ) +1448 +1449 def _parse_locking(self) -> exp.Expression: +1450 if self._match(TokenType.TABLE): +1451 kind = "TABLE" +1452 elif self._match(TokenType.VIEW): +1453 kind = "VIEW" +1454 elif self._match(TokenType.ROW): +1455 kind = "ROW" +1456 elif self._match_text_seq("DATABASE"): +1457 kind = "DATABASE" +1458 else: +1459 kind = None +1460 +1461 if kind in ("DATABASE", "TABLE", "VIEW"): +1462 this = self._parse_table_parts() 1463 else: -1464 for_or_in = None +1464 this = None 1465 -1466 if self._match_text_seq("ACCESS"): -1467 lock_type = "ACCESS" -1468 elif self._match_texts(("EXCL", "EXCLUSIVE")): -1469 lock_type = "EXCLUSIVE" -1470 elif self._match_text_seq("SHARE"): -1471 lock_type = "SHARE" -1472 elif self._match_text_seq("READ"): -1473 lock_type = "READ" -1474 elif self._match_text_seq("WRITE"): -1475 lock_type = "WRITE" -1476 elif self._match_text_seq("CHECKSUM"): -1477 lock_type = "CHECKSUM" -1478 else: -1479 lock_type = None -1480 -1481 override = self._match_text_seq("OVERRIDE") -1482 -1483 return self.expression( -1484 exp.LockingProperty, -1485 this=this, -1486 kind=kind, -1487 for_or_in=for_or_in, -1488 lock_type=lock_type, -1489 override=override, -1490 ) -1491 -1492 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: -1493 if self._match(TokenType.PARTITION_BY): -1494 return self._parse_csv(self._parse_conjunction) -1495 return [] -1496 -1497 def _parse_partitioned_by(self) -> exp.Expression: -1498 self._match(TokenType.EQ) -1499 return self.expression( -1500 exp.PartitionedByProperty, -1501 this=self._parse_schema() or self._parse_bracket(self._parse_field()), -1502 ) +1466 if self._match(TokenType.FOR): +1467 for_or_in = "FOR" +1468 elif self._match(TokenType.IN): +1469 for_or_in = "IN" +1470 else: +1471 for_or_in = None +1472 +1473 if self._match_text_seq("ACCESS"): +1474 lock_type = "ACCESS" +1475 elif self._match_texts(("EXCL", "EXCLUSIVE")): +1476 lock_type = "EXCLUSIVE" +1477 elif self._match_text_seq("SHARE"): +1478 lock_type = "SHARE" +1479 elif self._match_text_seq("READ"): +1480 lock_type = "READ" +1481 elif self._match_text_seq("WRITE"): +1482 lock_type = "WRITE" +1483 elif self._match_text_seq("CHECKSUM"): +1484 lock_type = "CHECKSUM" +1485 else: +1486 lock_type = None +1487 +1488 override = self._match_text_seq("OVERRIDE") +1489 +1490 return self.expression( +1491 exp.LockingProperty, +1492 this=this, +1493 kind=kind, +1494 for_or_in=for_or_in, +1495 lock_type=lock_type, +1496 override=override, +1497 ) +1498 +1499 def _parse_partition_by(self) -> t.List[t.Optional[exp.Expression]]: +1500 if self._match(TokenType.PARTITION_BY): +1501 return self._parse_csv(self._parse_conjunction) +1502 return [] 1503 -1504 def _parse_withdata(self, no=False) -> exp.Expression: -1505 if self._match_text_seq("AND", "STATISTICS"): -1506 statistics = True -1507 elif self._match_text_seq("AND", "NO", "STATISTICS"): -1508 statistics = False -1509 else: -1510 statistics = None -1511 -1512 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) -1513 -1514 def _parse_noprimaryindex(self) -> exp.Expression: -1515 self._match_text_seq("PRIMARY", "INDEX") -1516 return exp.NoPrimaryIndexProperty() -1517 -1518 def _parse_oncommit(self) -> exp.Expression: -1519 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") -1520 return exp.OnCommitProperty() -1521 -1522 def _parse_distkey(self) -> exp.Expression: -1523 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) +1504 def _parse_partitioned_by(self) -> exp.Expression: +1505 self._match(TokenType.EQ) +1506 return self.expression( +1507 exp.PartitionedByProperty, +1508 this=self._parse_schema() or self._parse_bracket(self._parse_field()), +1509 ) +1510 +1511 def _parse_withdata(self, no=False) -> exp.Expression: +1512 if self._match_text_seq("AND", "STATISTICS"): +1513 statistics = True +1514 elif self._match_text_seq("AND", "NO", "STATISTICS"): +1515 statistics = False +1516 else: +1517 statistics = None +1518 +1519 return self.expression(exp.WithDataProperty, no=no, statistics=statistics) +1520 +1521 def _parse_noprimaryindex(self) -> exp.Expression: +1522 self._match_text_seq("PRIMARY", "INDEX") +1523 return exp.NoPrimaryIndexProperty() 1524 -1525 def _parse_create_like(self) -> t.Optional[exp.Expression]: -1526 table = self._parse_table(schema=True) -1527 options = [] -1528 while self._match_texts(("INCLUDING", "EXCLUDING")): -1529 this = self._prev.text.upper() -1530 id_var = self._parse_id_var() +1525 def _parse_oncommit(self) -> exp.Expression: +1526 self._match_text_seq("COMMIT", "PRESERVE", "ROWS") +1527 return exp.OnCommitProperty() +1528 +1529 def _parse_distkey(self) -> exp.Expression: +1530 return self.expression(exp.DistKeyProperty, this=self._parse_wrapped(self._parse_id_var)) 1531 -1532 if not id_var: -1533 return None -1534 -1535 options.append( -1536 self.expression( -1537 exp.Property, -1538 this=this, -1539 value=exp.Var(this=id_var.this.upper()), -1540 ) -1541 ) -1542 return self.expression(exp.LikeProperty, this=table, expressions=options) -1543 -1544 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: -1545 return self.expression( -1546 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound -1547 ) -1548 -1549 def _parse_character_set(self, default: bool = False) -> exp.Expression: -1550 self._match(TokenType.EQ) -1551 return self.expression( -1552 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default -1553 ) -1554 -1555 def _parse_returns(self) -> exp.Expression: -1556 value: t.Optional[exp.Expression] -1557 is_table = self._match(TokenType.TABLE) -1558 -1559 if is_table: -1560 if self._match(TokenType.LT): -1561 value = self.expression( -1562 exp.Schema, -1563 this="TABLE", -1564 expressions=self._parse_csv(self._parse_struct_kwargs), -1565 ) -1566 if not self._match(TokenType.GT): -1567 self.raise_error("Expecting >") -1568 else: -1569 value = self._parse_schema(exp.Var(this="TABLE")) -1570 else: -1571 value = self._parse_types() -1572 -1573 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) -1574 -1575 def _parse_temporary(self, global_=False) -> exp.Expression: -1576 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" -1577 return self.expression(exp.TemporaryProperty, global_=global_) -1578 -1579 def _parse_describe(self) -> exp.Expression: -1580 kind = self._match_set(self.CREATABLES) and self._prev.text -1581 this = self._parse_table() -1582 -1583 return self.expression(exp.Describe, this=this, kind=kind) -1584 -1585 def _parse_insert(self) -> exp.Expression: -1586 overwrite = self._match(TokenType.OVERWRITE) -1587 local = self._match(TokenType.LOCAL) -1588 alternative = None +1532 def _parse_create_like(self) -> t.Optional[exp.Expression]: +1533 table = self._parse_table(schema=True) +1534 options = [] +1535 while self._match_texts(("INCLUDING", "EXCLUDING")): +1536 this = self._prev.text.upper() +1537 id_var = self._parse_id_var() +1538 +1539 if not id_var: +1540 return None +1541 +1542 options.append( +1543 self.expression( +1544 exp.Property, +1545 this=this, +1546 value=exp.Var(this=id_var.this.upper()), +1547 ) +1548 ) +1549 return self.expression(exp.LikeProperty, this=table, expressions=options) +1550 +1551 def _parse_sortkey(self, compound: bool = False) -> exp.Expression: +1552 return self.expression( +1553 exp.SortKeyProperty, this=self._parse_wrapped_csv(self._parse_id_var), compound=compound +1554 ) +1555 +1556 def _parse_character_set(self, default: bool = False) -> exp.Expression: +1557 self._match(TokenType.EQ) +1558 return self.expression( +1559 exp.CharacterSetProperty, this=self._parse_var_or_string(), default=default +1560 ) +1561 +1562 def _parse_returns(self) -> exp.Expression: +1563 value: t.Optional[exp.Expression] +1564 is_table = self._match(TokenType.TABLE) +1565 +1566 if is_table: +1567 if self._match(TokenType.LT): +1568 value = self.expression( +1569 exp.Schema, +1570 this="TABLE", +1571 expressions=self._parse_csv(self._parse_struct_kwargs), +1572 ) +1573 if not self._match(TokenType.GT): +1574 self.raise_error("Expecting >") +1575 else: +1576 value = self._parse_schema(exp.Var(this="TABLE")) +1577 else: +1578 value = self._parse_types() +1579 +1580 return self.expression(exp.ReturnsProperty, this=value, is_table=is_table) +1581 +1582 def _parse_temporary(self, global_=False) -> exp.Expression: +1583 self._match(TokenType.TEMPORARY) # in case calling from "GLOBAL" +1584 return self.expression(exp.TemporaryProperty, global_=global_) +1585 +1586 def _parse_describe(self) -> exp.Expression: +1587 kind = self._match_set(self.CREATABLES) and self._prev.text +1588 this = self._parse_table() 1589 -1590 if self._match_text_seq("DIRECTORY"): -1591 this: t.Optional[exp.Expression] = self.expression( -1592 exp.Directory, -1593 this=self._parse_var_or_string(), -1594 local=local, -1595 row_format=self._parse_row_format(match_row=True), -1596 ) -1597 else: -1598 if self._match(TokenType.OR): -1599 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text -1600 -1601 self._match(TokenType.INTO) -1602 self._match(TokenType.TABLE) -1603 this = self._parse_table(schema=True) -1604 -1605 return self.expression( -1606 exp.Insert, -1607 this=this, -1608 exists=self._parse_exists(), -1609 partition=self._parse_partition(), -1610 expression=self._parse_ddl_select(), -1611 conflict=self._parse_on_conflict(), -1612 returning=self._parse_returning(), -1613 overwrite=overwrite, -1614 alternative=alternative, -1615 ) -1616 -1617 def _parse_on_conflict(self) -> t.Optional[exp.Expression]: -1618 conflict = self._match_text_seq("ON", "CONFLICT") -1619 duplicate = self._match_text_seq("ON", "DUPLICATE", "KEY") -1620 -1621 if not (conflict or duplicate): -1622 return None +1590 return self.expression(exp.Describe, this=this, kind=kind) +1591 +1592 def _parse_insert(self) -> exp.Expression: +1593 overwrite = self._match(TokenType.OVERWRITE) +1594 local = self._match(TokenType.LOCAL) +1595 alternative = None +1596 +1597 if self._match_text_seq("DIRECTORY"): +1598 this: t.Optional[exp.Expression] = self.expression( +1599 exp.Directory, +1600 this=self._parse_var_or_string(), +1601 local=local, +1602 row_format=self._parse_row_format(match_row=True), +1603 ) +1604 else: +1605 if self._match(TokenType.OR): +1606 alternative = self._match_texts(self.INSERT_ALTERNATIVES) and self._prev.text +1607 +1608 self._match(TokenType.INTO) +1609 self._match(TokenType.TABLE) +1610 this = self._parse_table(schema=True) +1611 +1612 return self.expression( +1613 exp.Insert, +1614 this=this, +1615 exists=self._parse_exists(), +1616 partition=self._parse_partition(), +1617 expression=self._parse_ddl_select(), +1618 conflict=self._parse_on_conflict(), +1619 returning=self._parse_returning(), +1620 overwrite=overwrite, +1621 alternative=alternative, +1622 ) 1623 -1624 nothing = None -1625 expressions = None -1626 key = None -1627 constraint = None -1628 -1629 if conflict: -1630 if self._match_text_seq("ON", "CONSTRAINT"): -1631 constraint = self._parse_id_var() -1632 else: -1633 key = self._parse_csv(self._parse_value) -1634 -1635 self._match_text_seq("DO") -1636 if self._match_text_seq("NOTHING"): -1637 nothing = True -1638 else: -1639 self._match(TokenType.UPDATE) -1640 expressions = self._match(TokenType.SET) and self._parse_csv(self._parse_equality) +1624 def _parse_on_conflict(self) -> t.Optional[exp.Expression]: +1625 conflict = self._match_text_seq("ON", "CONFLICT") +1626 duplicate = self._match_text_seq("ON", "DUPLICATE", "KEY") +1627 +1628 if not (conflict or duplicate): +1629 return None +1630 +1631 nothing = None +1632 expressions = None +1633 key = None +1634 constraint = None +1635 +1636 if conflict: +1637 if self._match_text_seq("ON", "CONSTRAINT"): +1638 constraint = self._parse_id_var() +1639 else: +1640 key = self._parse_csv(self._parse_value) 1641 -1642 return self.expression( -1643 exp.OnConflict, -1644 duplicate=duplicate, -1645 expressions=expressions, -1646 nothing=nothing, -1647 key=key, -1648 constraint=constraint, -1649 ) -1650 -1651 def _parse_returning(self) -> t.Optional[exp.Expression]: -1652 if not self._match(TokenType.RETURNING): -1653 return None -1654 -1655 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) -1656 -1657 def _parse_row(self) -> t.Optional[exp.Expression]: -1658 if not self._match(TokenType.FORMAT): -1659 return None -1660 return self._parse_row_format() +1642 self._match_text_seq("DO") +1643 if self._match_text_seq("NOTHING"): +1644 nothing = True +1645 else: +1646 self._match(TokenType.UPDATE) +1647 expressions = self._match(TokenType.SET) and self._parse_csv(self._parse_equality) +1648 +1649 return self.expression( +1650 exp.OnConflict, +1651 duplicate=duplicate, +1652 expressions=expressions, +1653 nothing=nothing, +1654 key=key, +1655 constraint=constraint, +1656 ) +1657 +1658 def _parse_returning(self) -> t.Optional[exp.Expression]: +1659 if not self._match(TokenType.RETURNING): +1660 return None 1661 -1662 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: -1663 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): -1664 return None -1665 -1666 if self._match_text_seq("SERDE"): -1667 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1662 return self.expression(exp.Returning, expressions=self._parse_csv(self._parse_column)) +1663 +1664 def _parse_row(self) -> t.Optional[exp.Expression]: +1665 if not self._match(TokenType.FORMAT): +1666 return None +1667 return self._parse_row_format() 1668 -1669 self._match_text_seq("DELIMITED") -1670 -1671 kwargs = {} +1669 def _parse_row_format(self, match_row: bool = False) -> t.Optional[exp.Expression]: +1670 if match_row and not self._match_pair(TokenType.ROW, TokenType.FORMAT): +1671 return None 1672 -1673 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): -1674 kwargs["fields"] = self._parse_string() -1675 if self._match_text_seq("ESCAPED", "BY"): -1676 kwargs["escaped"] = self._parse_string() -1677 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): -1678 kwargs["collection_items"] = self._parse_string() -1679 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): -1680 kwargs["map_keys"] = self._parse_string() -1681 if self._match_text_seq("LINES", "TERMINATED", "BY"): -1682 kwargs["lines"] = self._parse_string() -1683 if self._match_text_seq("NULL", "DEFINED", "AS"): -1684 kwargs["null"] = self._parse_string() -1685 -1686 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore -1687 -1688 def _parse_load_data(self) -> exp.Expression: -1689 local = self._match(TokenType.LOCAL) -1690 self._match_text_seq("INPATH") -1691 inpath = self._parse_string() -1692 overwrite = self._match(TokenType.OVERWRITE) -1693 self._match_pair(TokenType.INTO, TokenType.TABLE) +1673 if self._match_text_seq("SERDE"): +1674 return self.expression(exp.RowFormatSerdeProperty, this=self._parse_string()) +1675 +1676 self._match_text_seq("DELIMITED") +1677 +1678 kwargs = {} +1679 +1680 if self._match_text_seq("FIELDS", "TERMINATED", "BY"): +1681 kwargs["fields"] = self._parse_string() +1682 if self._match_text_seq("ESCAPED", "BY"): +1683 kwargs["escaped"] = self._parse_string() +1684 if self._match_text_seq("COLLECTION", "ITEMS", "TERMINATED", "BY"): +1685 kwargs["collection_items"] = self._parse_string() +1686 if self._match_text_seq("MAP", "KEYS", "TERMINATED", "BY"): +1687 kwargs["map_keys"] = self._parse_string() +1688 if self._match_text_seq("LINES", "TERMINATED", "BY"): +1689 kwargs["lines"] = self._parse_string() +1690 if self._match_text_seq("NULL", "DEFINED", "AS"): +1691 kwargs["null"] = self._parse_string() +1692 +1693 return self.expression(exp.RowFormatDelimitedProperty, **kwargs) # type: ignore 1694 -1695 return self.expression( -1696 exp.LoadData, -1697 this=self._parse_table(schema=True), -1698 local=local, -1699 overwrite=overwrite, -1700 inpath=inpath, -1701 partition=self._parse_partition(), -1702 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), -1703 serde=self._match_text_seq("SERDE") and self._parse_string(), -1704 ) -1705 -1706 def _parse_delete(self) -> exp.Expression: -1707 self._match(TokenType.FROM) -1708 -1709 return self.expression( -1710 exp.Delete, -1711 this=self._parse_table(), -1712 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), -1713 where=self._parse_where(), -1714 returning=self._parse_returning(), -1715 ) -1716 -1717 def _parse_update(self) -> exp.Expression: -1718 return self.expression( -1719 exp.Update, -1720 **{ # type: ignore -1721 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), -1722 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), -1723 "from": self._parse_from(), -1724 "where": self._parse_where(), -1725 "returning": self._parse_returning(), -1726 }, -1727 ) -1728 -1729 def _parse_uncache(self) -> exp.Expression: -1730 if not self._match(TokenType.TABLE): -1731 self.raise_error("Expecting TABLE after UNCACHE") -1732 -1733 return self.expression( -1734 exp.Uncache, -1735 exists=self._parse_exists(), -1736 this=self._parse_table(schema=True), -1737 ) -1738 -1739 def _parse_cache(self) -> exp.Expression: -1740 lazy = self._match(TokenType.LAZY) -1741 self._match(TokenType.TABLE) -1742 table = self._parse_table(schema=True) -1743 options = [] -1744 -1745 if self._match(TokenType.OPTIONS): -1746 self._match_l_paren() -1747 k = self._parse_string() -1748 self._match(TokenType.EQ) -1749 v = self._parse_string() -1750 options = [k, v] -1751 self._match_r_paren() -1752 -1753 self._match(TokenType.ALIAS) -1754 return self.expression( -1755 exp.Cache, -1756 this=table, -1757 lazy=lazy, -1758 options=options, -1759 expression=self._parse_select(nested=True), -1760 ) -1761 -1762 def _parse_partition(self) -> t.Optional[exp.Expression]: -1763 if not self._match(TokenType.PARTITION): -1764 return None -1765 -1766 return self.expression( -1767 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) -1768 ) -1769 -1770 def _parse_value(self) -> exp.Expression: -1771 if self._match(TokenType.L_PAREN): -1772 expressions = self._parse_csv(self._parse_conjunction) -1773 self._match_r_paren() -1774 return self.expression(exp.Tuple, expressions=expressions) -1775 -1776 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. -1777 # Source: https://prestodb.io/docs/current/sql/values.html -1778 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) -1779 -1780 def _parse_select( -1781 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True -1782 ) -> t.Optional[exp.Expression]: -1783 cte = self._parse_with() -1784 if cte: -1785 this = self._parse_statement() +1695 def _parse_load_data(self) -> exp.Expression: +1696 local = self._match(TokenType.LOCAL) +1697 self._match_text_seq("INPATH") +1698 inpath = self._parse_string() +1699 overwrite = self._match(TokenType.OVERWRITE) +1700 self._match_pair(TokenType.INTO, TokenType.TABLE) +1701 +1702 return self.expression( +1703 exp.LoadData, +1704 this=self._parse_table(schema=True), +1705 local=local, +1706 overwrite=overwrite, +1707 inpath=inpath, +1708 partition=self._parse_partition(), +1709 input_format=self._match_text_seq("INPUTFORMAT") and self._parse_string(), +1710 serde=self._match_text_seq("SERDE") and self._parse_string(), +1711 ) +1712 +1713 def _parse_delete(self) -> exp.Expression: +1714 self._match(TokenType.FROM) +1715 +1716 return self.expression( +1717 exp.Delete, +1718 this=self._parse_table(), +1719 using=self._parse_csv(lambda: self._match(TokenType.USING) and self._parse_table()), +1720 where=self._parse_where(), +1721 returning=self._parse_returning(), +1722 ) +1723 +1724 def _parse_update(self) -> exp.Expression: +1725 return self.expression( +1726 exp.Update, +1727 **{ # type: ignore +1728 "this": self._parse_table(alias_tokens=self.UPDATE_ALIAS_TOKENS), +1729 "expressions": self._match(TokenType.SET) and self._parse_csv(self._parse_equality), +1730 "from": self._parse_from(), +1731 "where": self._parse_where(), +1732 "returning": self._parse_returning(), +1733 }, +1734 ) +1735 +1736 def _parse_uncache(self) -> exp.Expression: +1737 if not self._match(TokenType.TABLE): +1738 self.raise_error("Expecting TABLE after UNCACHE") +1739 +1740 return self.expression( +1741 exp.Uncache, +1742 exists=self._parse_exists(), +1743 this=self._parse_table(schema=True), +1744 ) +1745 +1746 def _parse_cache(self) -> exp.Expression: +1747 lazy = self._match(TokenType.LAZY) +1748 self._match(TokenType.TABLE) +1749 table = self._parse_table(schema=True) +1750 options = [] +1751 +1752 if self._match(TokenType.OPTIONS): +1753 self._match_l_paren() +1754 k = self._parse_string() +1755 self._match(TokenType.EQ) +1756 v = self._parse_string() +1757 options = [k, v] +1758 self._match_r_paren() +1759 +1760 self._match(TokenType.ALIAS) +1761 return self.expression( +1762 exp.Cache, +1763 this=table, +1764 lazy=lazy, +1765 options=options, +1766 expression=self._parse_select(nested=True), +1767 ) +1768 +1769 def _parse_partition(self) -> t.Optional[exp.Expression]: +1770 if not self._match(TokenType.PARTITION): +1771 return None +1772 +1773 return self.expression( +1774 exp.Partition, expressions=self._parse_wrapped_csv(self._parse_conjunction) +1775 ) +1776 +1777 def _parse_value(self) -> exp.Expression: +1778 if self._match(TokenType.L_PAREN): +1779 expressions = self._parse_csv(self._parse_conjunction) +1780 self._match_r_paren() +1781 return self.expression(exp.Tuple, expressions=expressions) +1782 +1783 # In presto we can have VALUES 1, 2 which results in 1 column & 2 rows. +1784 # Source: https://prestodb.io/docs/current/sql/values.html +1785 return self.expression(exp.Tuple, expressions=[self._parse_conjunction()]) 1786 -1787 if not this: -1788 self.raise_error("Failed to parse any statement following CTE") -1789 return cte -1790 -1791 if "with" in this.arg_types: -1792 this.set("with", cte) -1793 else: -1794 self.raise_error(f"{this.key} does not support CTE") -1795 this = cte -1796 elif self._match(TokenType.SELECT): -1797 comments = self._prev_comments -1798 -1799 kind = ( -1800 self._match(TokenType.ALIAS) -1801 and self._match_texts(("STRUCT", "VALUE")) -1802 and self._prev.text -1803 ) -1804 hint = self._parse_hint() -1805 all_ = self._match(TokenType.ALL) -1806 distinct = self._match(TokenType.DISTINCT) -1807 -1808 if distinct: -1809 distinct = self.expression( -1810 exp.Distinct, -1811 on=self._parse_value() if self._match(TokenType.ON) else None, -1812 ) -1813 -1814 if all_ and distinct: -1815 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") -1816 -1817 limit = self._parse_limit(top=True) -1818 expressions = self._parse_csv(self._parse_expression) -1819 -1820 this = self.expression( -1821 exp.Select, -1822 kind=kind, -1823 hint=hint, -1824 distinct=distinct, -1825 expressions=expressions, -1826 limit=limit, -1827 ) -1828 this.comments = comments -1829 -1830 into = self._parse_into() -1831 if into: -1832 this.set("into", into) -1833 -1834 from_ = self._parse_from() -1835 if from_: -1836 this.set("from", from_) -1837 -1838 self._parse_query_modifiers(this) -1839 elif (table or nested) and self._match(TokenType.L_PAREN): -1840 this = self._parse_table() if table else self._parse_select(nested=True) -1841 self._parse_query_modifiers(this) -1842 this = self._parse_set_operations(this) -1843 self._match_r_paren() +1787 def _parse_select( +1788 self, nested: bool = False, table: bool = False, parse_subquery_alias: bool = True +1789 ) -> t.Optional[exp.Expression]: +1790 cte = self._parse_with() +1791 if cte: +1792 this = self._parse_statement() +1793 +1794 if not this: +1795 self.raise_error("Failed to parse any statement following CTE") +1796 return cte +1797 +1798 if "with" in this.arg_types: +1799 this.set("with", cte) +1800 else: +1801 self.raise_error(f"{this.key} does not support CTE") +1802 this = cte +1803 elif self._match(TokenType.SELECT): +1804 comments = self._prev_comments +1805 +1806 kind = ( +1807 self._match(TokenType.ALIAS) +1808 and self._match_texts(("STRUCT", "VALUE")) +1809 and self._prev.text +1810 ) +1811 hint = self._parse_hint() +1812 all_ = self._match(TokenType.ALL) +1813 distinct = self._match(TokenType.DISTINCT) +1814 +1815 if distinct: +1816 distinct = self.expression( +1817 exp.Distinct, +1818 on=self._parse_value() if self._match(TokenType.ON) else None, +1819 ) +1820 +1821 if all_ and distinct: +1822 self.raise_error("Cannot specify both ALL and DISTINCT after SELECT") +1823 +1824 limit = self._parse_limit(top=True) +1825 expressions = self._parse_csv(self._parse_expression) +1826 +1827 this = self.expression( +1828 exp.Select, +1829 kind=kind, +1830 hint=hint, +1831 distinct=distinct, +1832 expressions=expressions, +1833 limit=limit, +1834 ) +1835 this.comments = comments +1836 +1837 into = self._parse_into() +1838 if into: +1839 this.set("into", into) +1840 +1841 from_ = self._parse_from() +1842 if from_: +1843 this.set("from", from_) 1844 -1845 # early return so that subquery unions aren't parsed again -1846 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 -1847 # Union ALL should be a property of the top select node, not the subquery -1848 return self._parse_subquery(this, parse_alias=parse_subquery_alias) -1849 elif self._match(TokenType.VALUES): -1850 this = self.expression( -1851 exp.Values, -1852 expressions=self._parse_csv(self._parse_value), -1853 alias=self._parse_table_alias(), -1854 ) -1855 else: -1856 this = None -1857 -1858 return self._parse_set_operations(this) -1859 -1860 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: -1861 if not skip_with_token and not self._match(TokenType.WITH): -1862 return None -1863 -1864 comments = self._prev_comments -1865 recursive = self._match(TokenType.RECURSIVE) +1845 self._parse_query_modifiers(this) +1846 elif (table or nested) and self._match(TokenType.L_PAREN): +1847 this = self._parse_table() if table else self._parse_select(nested=True) +1848 self._parse_query_modifiers(this) +1849 this = self._parse_set_operations(this) +1850 self._match_r_paren() +1851 +1852 # early return so that subquery unions aren't parsed again +1853 # SELECT * FROM (SELECT 1) UNION ALL SELECT 1 +1854 # Union ALL should be a property of the top select node, not the subquery +1855 return self._parse_subquery(this, parse_alias=parse_subquery_alias) +1856 elif self._match(TokenType.VALUES): +1857 this = self.expression( +1858 exp.Values, +1859 expressions=self._parse_csv(self._parse_value), +1860 alias=self._parse_table_alias(), +1861 ) +1862 else: +1863 this = None +1864 +1865 return self._parse_set_operations(this) 1866 -1867 expressions = [] -1868 while True: -1869 expressions.append(self._parse_cte()) +1867 def _parse_with(self, skip_with_token: bool = False) -> t.Optional[exp.Expression]: +1868 if not skip_with_token and not self._match(TokenType.WITH): +1869 return None 1870 -1871 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): -1872 break -1873 else: -1874 self._match(TokenType.WITH) -1875 -1876 return self.expression( -1877 exp.With, comments=comments, expressions=expressions, recursive=recursive -1878 ) -1879 -1880 def _parse_cte(self) -> exp.Expression: -1881 alias = self._parse_table_alias() -1882 if not alias or not alias.this: -1883 self.raise_error("Expected CTE to have alias") -1884 -1885 self._match(TokenType.ALIAS) +1871 comments = self._prev_comments +1872 recursive = self._match(TokenType.RECURSIVE) +1873 +1874 expressions = [] +1875 while True: +1876 expressions.append(self._parse_cte()) +1877 +1878 if not self._match(TokenType.COMMA) and not self._match(TokenType.WITH): +1879 break +1880 else: +1881 self._match(TokenType.WITH) +1882 +1883 return self.expression( +1884 exp.With, comments=comments, expressions=expressions, recursive=recursive +1885 ) 1886 -1887 return self.expression( -1888 exp.CTE, -1889 this=self._parse_wrapped(self._parse_statement), -1890 alias=alias, -1891 ) -1892 -1893 def _parse_table_alias( -1894 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None -1895 ) -> t.Optional[exp.Expression]: -1896 any_token = self._match(TokenType.ALIAS) -1897 alias = ( -1898 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -1899 or self._parse_string_as_identifier() -1900 ) -1901 -1902 index = self._index -1903 if self._match(TokenType.L_PAREN): -1904 columns = self._parse_csv(self._parse_function_parameter) -1905 self._match_r_paren() if columns else self._retreat(index) -1906 else: -1907 columns = None +1887 def _parse_cte(self) -> exp.Expression: +1888 alias = self._parse_table_alias() +1889 if not alias or not alias.this: +1890 self.raise_error("Expected CTE to have alias") +1891 +1892 self._match(TokenType.ALIAS) +1893 +1894 return self.expression( +1895 exp.CTE, +1896 this=self._parse_wrapped(self._parse_statement), +1897 alias=alias, +1898 ) +1899 +1900 def _parse_table_alias( +1901 self, alias_tokens: t.Optional[t.Collection[TokenType]] = None +1902 ) -> t.Optional[exp.Expression]: +1903 any_token = self._match(TokenType.ALIAS) +1904 alias = ( +1905 self._parse_id_var(any_token=any_token, tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +1906 or self._parse_string_as_identifier() +1907 ) 1908 -1909 if not alias and not columns: -1910 return None -1911 -1912 return self.expression(exp.TableAlias, this=alias, columns=columns) -1913 -1914 def _parse_subquery( -1915 self, this: t.Optional[exp.Expression], parse_alias: bool = True -1916 ) -> exp.Expression: -1917 return self.expression( -1918 exp.Subquery, -1919 this=this, -1920 pivots=self._parse_pivots(), -1921 alias=self._parse_table_alias() if parse_alias else None, -1922 ) -1923 -1924 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: -1925 if not isinstance(this, self.MODIFIABLES): -1926 return -1927 -1928 table = isinstance(this, exp.Table) -1929 -1930 while True: -1931 join = self._parse_join() -1932 if join: -1933 this.append("joins", join) +1909 index = self._index +1910 if self._match(TokenType.L_PAREN): +1911 columns = self._parse_csv(self._parse_function_parameter) +1912 self._match_r_paren() if columns else self._retreat(index) +1913 else: +1914 columns = None +1915 +1916 if not alias and not columns: +1917 return None +1918 +1919 return self.expression(exp.TableAlias, this=alias, columns=columns) +1920 +1921 def _parse_subquery( +1922 self, this: t.Optional[exp.Expression], parse_alias: bool = True +1923 ) -> exp.Expression: +1924 return self.expression( +1925 exp.Subquery, +1926 this=this, +1927 pivots=self._parse_pivots(), +1928 alias=self._parse_table_alias() if parse_alias else None, +1929 ) +1930 +1931 def _parse_query_modifiers(self, this: t.Optional[exp.Expression]) -> None: +1932 if not isinstance(this, self.MODIFIABLES): +1933 return 1934 -1935 lateral = None -1936 if not join: -1937 lateral = self._parse_lateral() -1938 if lateral: -1939 this.append("laterals", lateral) -1940 -1941 comma = None if table else self._match(TokenType.COMMA) -1942 if comma: -1943 this.args["from"].append("expressions", self._parse_table()) -1944 -1945 if not (lateral or join or comma): -1946 break +1935 table = isinstance(this, exp.Table) +1936 +1937 while True: +1938 join = self._parse_join() +1939 if join: +1940 this.append("joins", join) +1941 +1942 lateral = None +1943 if not join: +1944 lateral = self._parse_lateral() +1945 if lateral: +1946 this.append("laterals", lateral) 1947 -1948 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): -1949 expression = parser(self) -1950 -1951 if expression: -1952 this.set(key, expression) -1953 -1954 def _parse_hint(self) -> t.Optional[exp.Expression]: -1955 if self._match(TokenType.HINT): -1956 hints = self._parse_csv(self._parse_function) -1957 if not self._match_pair(TokenType.STAR, TokenType.SLASH): -1958 self.raise_error("Expected */ after HINT") -1959 return self.expression(exp.Hint, expressions=hints) +1948 comma = None if table else self._match(TokenType.COMMA) +1949 if comma: +1950 this.args["from"].append("expressions", self._parse_table()) +1951 +1952 if not (lateral or join or comma): +1953 break +1954 +1955 for key, parser in self.QUERY_MODIFIER_PARSERS.items(): +1956 expression = parser(self) +1957 +1958 if expression: +1959 this.set(key, expression) 1960 -1961 return None -1962 -1963 def _parse_into(self) -> t.Optional[exp.Expression]: -1964 if not self._match(TokenType.INTO): -1965 return None -1966 -1967 temp = self._match(TokenType.TEMPORARY) -1968 unlogged = self._match(TokenType.UNLOGGED) -1969 self._match(TokenType.TABLE) -1970 -1971 return self.expression( -1972 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged -1973 ) -1974 -1975 def _parse_from(self) -> t.Optional[exp.Expression]: -1976 if not self._match(TokenType.FROM): -1977 return None -1978 -1979 return self.expression( -1980 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) -1981 ) -1982 -1983 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: -1984 if not self._match(TokenType.MATCH_RECOGNIZE): -1985 return None -1986 -1987 self._match_l_paren() -1988 -1989 partition = self._parse_partition_by() -1990 order = self._parse_order() -1991 measures = ( -1992 self._parse_csv(self._parse_expression) if self._match_text_seq("MEASURES") else None -1993 ) -1994 -1995 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): -1996 rows = exp.Var(this="ONE ROW PER MATCH") -1997 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): -1998 text = "ALL ROWS PER MATCH" -1999 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): -2000 text += f" SHOW EMPTY MATCHES" -2001 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): -2002 text += f" OMIT EMPTY MATCHES" -2003 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): -2004 text += f" WITH UNMATCHED ROWS" -2005 rows = exp.Var(this=text) -2006 else: -2007 rows = None -2008 -2009 if self._match_text_seq("AFTER", "MATCH", "SKIP"): -2010 text = "AFTER MATCH SKIP" -2011 if self._match_text_seq("PAST", "LAST", "ROW"): -2012 text += f" PAST LAST ROW" -2013 elif self._match_text_seq("TO", "NEXT", "ROW"): -2014 text += f" TO NEXT ROW" -2015 elif self._match_text_seq("TO", "FIRST"): -2016 text += f" TO FIRST {self._advance_any().text}" # type: ignore -2017 elif self._match_text_seq("TO", "LAST"): -2018 text += f" TO LAST {self._advance_any().text}" # type: ignore -2019 after = exp.Var(this=text) -2020 else: -2021 after = None -2022 -2023 if self._match_text_seq("PATTERN"): -2024 self._match_l_paren() -2025 -2026 if not self._curr: -2027 self.raise_error("Expecting )", self._curr) -2028 -2029 paren = 1 -2030 start = self._curr -2031 -2032 while self._curr and paren > 0: -2033 if self._curr.token_type == TokenType.L_PAREN: -2034 paren += 1 -2035 if self._curr.token_type == TokenType.R_PAREN: -2036 paren -= 1 -2037 end = self._prev -2038 self._advance() -2039 if paren > 0: -2040 self.raise_error("Expecting )", self._curr) -2041 pattern = exp.Var(this=self._find_sql(start, end)) -2042 else: -2043 pattern = None -2044 -2045 define = ( -2046 self._parse_csv( -2047 lambda: self.expression( -2048 exp.Alias, -2049 alias=self._parse_id_var(any_token=True), -2050 this=self._match(TokenType.ALIAS) and self._parse_conjunction(), -2051 ) -2052 ) -2053 if self._match_text_seq("DEFINE") -2054 else None -2055 ) -2056 -2057 self._match_r_paren() -2058 -2059 return self.expression( -2060 exp.MatchRecognize, -2061 partition_by=partition, -2062 order=order, -2063 measures=measures, -2064 rows=rows, -2065 after=after, -2066 pattern=pattern, -2067 define=define, -2068 alias=self._parse_table_alias(), -2069 ) -2070 -2071 def _parse_lateral(self) -> t.Optional[exp.Expression]: -2072 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) -2073 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) -2074 -2075 if outer_apply or cross_apply: -2076 this = self._parse_select(table=True) -2077 view = None -2078 outer = not cross_apply -2079 elif self._match(TokenType.LATERAL): -2080 this = self._parse_select(table=True) -2081 view = self._match(TokenType.VIEW) -2082 outer = self._match(TokenType.OUTER) -2083 else: -2084 return None -2085 -2086 if not this: -2087 this = self._parse_function() or self._parse_id_var(any_token=False) -2088 while self._match(TokenType.DOT): -2089 this = exp.Dot( -2090 this=this, -2091 expression=self._parse_function() or self._parse_id_var(any_token=False), -2092 ) -2093 -2094 table_alias: t.Optional[exp.Expression] -2095 -2096 if view: -2097 table = self._parse_id_var(any_token=False) -2098 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] -2099 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) -2100 else: -2101 table_alias = self._parse_table_alias() +1961 def _parse_hint(self) -> t.Optional[exp.Expression]: +1962 if self._match(TokenType.HINT): +1963 hints = self._parse_csv(self._parse_function) +1964 if not self._match_pair(TokenType.STAR, TokenType.SLASH): +1965 self.raise_error("Expected */ after HINT") +1966 return self.expression(exp.Hint, expressions=hints) +1967 +1968 return None +1969 +1970 def _parse_into(self) -> t.Optional[exp.Expression]: +1971 if not self._match(TokenType.INTO): +1972 return None +1973 +1974 temp = self._match(TokenType.TEMPORARY) +1975 unlogged = self._match(TokenType.UNLOGGED) +1976 self._match(TokenType.TABLE) +1977 +1978 return self.expression( +1979 exp.Into, this=self._parse_table(schema=True), temporary=temp, unlogged=unlogged +1980 ) +1981 +1982 def _parse_from(self) -> t.Optional[exp.Expression]: +1983 if not self._match(TokenType.FROM): +1984 return None +1985 +1986 return self.expression( +1987 exp.From, comments=self._prev_comments, expressions=self._parse_csv(self._parse_table) +1988 ) +1989 +1990 def _parse_match_recognize(self) -> t.Optional[exp.Expression]: +1991 if not self._match(TokenType.MATCH_RECOGNIZE): +1992 return None +1993 +1994 self._match_l_paren() +1995 +1996 partition = self._parse_partition_by() +1997 order = self._parse_order() +1998 measures = ( +1999 self._parse_csv(self._parse_expression) if self._match_text_seq("MEASURES") else None +2000 ) +2001 +2002 if self._match_text_seq("ONE", "ROW", "PER", "MATCH"): +2003 rows = exp.Var(this="ONE ROW PER MATCH") +2004 elif self._match_text_seq("ALL", "ROWS", "PER", "MATCH"): +2005 text = "ALL ROWS PER MATCH" +2006 if self._match_text_seq("SHOW", "EMPTY", "MATCHES"): +2007 text += f" SHOW EMPTY MATCHES" +2008 elif self._match_text_seq("OMIT", "EMPTY", "MATCHES"): +2009 text += f" OMIT EMPTY MATCHES" +2010 elif self._match_text_seq("WITH", "UNMATCHED", "ROWS"): +2011 text += f" WITH UNMATCHED ROWS" +2012 rows = exp.Var(this=text) +2013 else: +2014 rows = None +2015 +2016 if self._match_text_seq("AFTER", "MATCH", "SKIP"): +2017 text = "AFTER MATCH SKIP" +2018 if self._match_text_seq("PAST", "LAST", "ROW"): +2019 text += f" PAST LAST ROW" +2020 elif self._match_text_seq("TO", "NEXT", "ROW"): +2021 text += f" TO NEXT ROW" +2022 elif self._match_text_seq("TO", "FIRST"): +2023 text += f" TO FIRST {self._advance_any().text}" # type: ignore +2024 elif self._match_text_seq("TO", "LAST"): +2025 text += f" TO LAST {self._advance_any().text}" # type: ignore +2026 after = exp.Var(this=text) +2027 else: +2028 after = None +2029 +2030 if self._match_text_seq("PATTERN"): +2031 self._match_l_paren() +2032 +2033 if not self._curr: +2034 self.raise_error("Expecting )", self._curr) +2035 +2036 paren = 1 +2037 start = self._curr +2038 +2039 while self._curr and paren > 0: +2040 if self._curr.token_type == TokenType.L_PAREN: +2041 paren += 1 +2042 if self._curr.token_type == TokenType.R_PAREN: +2043 paren -= 1 +2044 end = self._prev +2045 self._advance() +2046 if paren > 0: +2047 self.raise_error("Expecting )", self._curr) +2048 pattern = exp.Var(this=self._find_sql(start, end)) +2049 else: +2050 pattern = None +2051 +2052 define = ( +2053 self._parse_csv( +2054 lambda: self.expression( +2055 exp.Alias, +2056 alias=self._parse_id_var(any_token=True), +2057 this=self._match(TokenType.ALIAS) and self._parse_conjunction(), +2058 ) +2059 ) +2060 if self._match_text_seq("DEFINE") +2061 else None +2062 ) +2063 +2064 self._match_r_paren() +2065 +2066 return self.expression( +2067 exp.MatchRecognize, +2068 partition_by=partition, +2069 order=order, +2070 measures=measures, +2071 rows=rows, +2072 after=after, +2073 pattern=pattern, +2074 define=define, +2075 alias=self._parse_table_alias(), +2076 ) +2077 +2078 def _parse_lateral(self) -> t.Optional[exp.Expression]: +2079 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY) +2080 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY) +2081 +2082 if outer_apply or cross_apply: +2083 this = self._parse_select(table=True) +2084 view = None +2085 outer = not cross_apply +2086 elif self._match(TokenType.LATERAL): +2087 this = self._parse_select(table=True) +2088 view = self._match(TokenType.VIEW) +2089 outer = self._match(TokenType.OUTER) +2090 else: +2091 return None +2092 +2093 if not this: +2094 this = self._parse_function() or self._parse_id_var(any_token=False) +2095 while self._match(TokenType.DOT): +2096 this = exp.Dot( +2097 this=this, +2098 expression=self._parse_function() or self._parse_id_var(any_token=False), +2099 ) +2100 +2101 table_alias: t.Optional[exp.Expression] 2102 -2103 expression = self.expression( -2104 exp.Lateral, -2105 this=this, -2106 view=view, -2107 outer=outer, -2108 alias=table_alias, -2109 ) -2110 -2111 return expression -2112 -2113 def _parse_join_side_and_kind( -2114 self, -2115 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: -2116 return ( -2117 self._match(TokenType.NATURAL) and self._prev, -2118 self._match_set(self.JOIN_SIDES) and self._prev, -2119 self._match_set(self.JOIN_KINDS) and self._prev, -2120 ) -2121 -2122 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: -2123 index = self._index -2124 natural, side, kind = self._parse_join_side_and_kind() -2125 hint = self._prev.text if self._match_texts(self.JOIN_HINTS) else None -2126 join = self._match(TokenType.JOIN) -2127 -2128 if not skip_join_token and not join: -2129 self._retreat(index) -2130 kind = None -2131 natural = None -2132 side = None -2133 -2134 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY, False) -2135 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY, False) -2136 -2137 if not skip_join_token and not join and not outer_apply and not cross_apply: -2138 return None -2139 -2140 if outer_apply: -2141 side = Token(TokenType.LEFT, "LEFT") -2142 -2143 kwargs: t.Dict[ -2144 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] -2145 ] = {"this": self._parse_table()} +2103 if view: +2104 table = self._parse_id_var(any_token=False) +2105 columns = self._parse_csv(self._parse_id_var) if self._match(TokenType.ALIAS) else [] +2106 table_alias = self.expression(exp.TableAlias, this=table, columns=columns) +2107 else: +2108 table_alias = self._parse_table_alias() +2109 +2110 expression = self.expression( +2111 exp.Lateral, +2112 this=this, +2113 view=view, +2114 outer=outer, +2115 alias=table_alias, +2116 ) +2117 +2118 return expression +2119 +2120 def _parse_join_side_and_kind( +2121 self, +2122 ) -> t.Tuple[t.Optional[Token], t.Optional[Token], t.Optional[Token]]: +2123 return ( +2124 self._match(TokenType.NATURAL) and self._prev, +2125 self._match_set(self.JOIN_SIDES) and self._prev, +2126 self._match_set(self.JOIN_KINDS) and self._prev, +2127 ) +2128 +2129 def _parse_join(self, skip_join_token: bool = False) -> t.Optional[exp.Expression]: +2130 index = self._index +2131 natural, side, kind = self._parse_join_side_and_kind() +2132 hint = self._prev.text if self._match_texts(self.JOIN_HINTS) else None +2133 join = self._match(TokenType.JOIN) +2134 +2135 if not skip_join_token and not join: +2136 self._retreat(index) +2137 kind = None +2138 natural = None +2139 side = None +2140 +2141 outer_apply = self._match_pair(TokenType.OUTER, TokenType.APPLY, False) +2142 cross_apply = self._match_pair(TokenType.CROSS, TokenType.APPLY, False) +2143 +2144 if not skip_join_token and not join and not outer_apply and not cross_apply: +2145 return None 2146 -2147 if natural: -2148 kwargs["natural"] = True -2149 if side: -2150 kwargs["side"] = side.text -2151 if kind: -2152 kwargs["kind"] = kind.text -2153 if hint: -2154 kwargs["hint"] = hint -2155 -2156 if self._match(TokenType.ON): -2157 kwargs["on"] = self._parse_conjunction() -2158 elif self._match(TokenType.USING): -2159 kwargs["using"] = self._parse_wrapped_id_vars() -2160 -2161 return self.expression(exp.Join, **kwargs) # type: ignore +2147 if outer_apply: +2148 side = Token(TokenType.LEFT, "LEFT") +2149 +2150 kwargs: t.Dict[ +2151 str, t.Optional[exp.Expression] | bool | str | t.List[t.Optional[exp.Expression]] +2152 ] = {"this": self._parse_table()} +2153 +2154 if natural: +2155 kwargs["natural"] = True +2156 if side: +2157 kwargs["side"] = side.text +2158 if kind: +2159 kwargs["kind"] = kind.text +2160 if hint: +2161 kwargs["hint"] = hint 2162 -2163 def _parse_index(self) -> exp.Expression: -2164 index = self._parse_id_var() -2165 self._match(TokenType.ON) -2166 self._match(TokenType.TABLE) # hive +2163 if self._match(TokenType.ON): +2164 kwargs["on"] = self._parse_conjunction() +2165 elif self._match(TokenType.USING): +2166 kwargs["using"] = self._parse_wrapped_id_vars() 2167 -2168 return self.expression( -2169 exp.Index, -2170 this=index, -2171 table=self.expression(exp.Table, this=self._parse_id_var()), -2172 columns=self._parse_expression(), -2173 ) +2168 return self.expression(exp.Join, **kwargs) # type: ignore +2169 +2170 def _parse_index(self) -> exp.Expression: +2171 index = self._parse_id_var() +2172 self._match(TokenType.ON) +2173 self._match(TokenType.TABLE) # hive 2174 -2175 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: -2176 unique = self._match(TokenType.UNIQUE) -2177 primary = self._match_text_seq("PRIMARY") -2178 amp = self._match_text_seq("AMP") -2179 if not self._match(TokenType.INDEX): -2180 return None -2181 index = self._parse_id_var() -2182 columns = None -2183 if self._match(TokenType.L_PAREN, advance=False): -2184 columns = self._parse_wrapped_csv(self._parse_column) -2185 return self.expression( -2186 exp.Index, -2187 this=index, -2188 columns=columns, -2189 unique=unique, -2190 primary=primary, -2191 amp=amp, -2192 ) -2193 -2194 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: -2195 catalog = None -2196 db = None -2197 -2198 table = ( -2199 (not schema and self._parse_function()) -2200 or self._parse_id_var(any_token=False) -2201 or self._parse_string_as_identifier() -2202 ) -2203 -2204 while self._match(TokenType.DOT): -2205 if catalog: -2206 # This allows nesting the table in arbitrarily many dot expressions if needed -2207 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) -2208 else: -2209 catalog = db -2210 db = table -2211 table = self._parse_id_var() -2212 -2213 if not table: -2214 self.raise_error(f"Expected table name but got {self._curr}") -2215 -2216 return self.expression( -2217 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() -2218 ) +2175 return self.expression( +2176 exp.Index, +2177 this=index, +2178 table=self.expression(exp.Table, this=self._parse_id_var()), +2179 columns=self._parse_expression(), +2180 ) +2181 +2182 def _parse_create_table_index(self) -> t.Optional[exp.Expression]: +2183 unique = self._match(TokenType.UNIQUE) +2184 primary = self._match_text_seq("PRIMARY") +2185 amp = self._match_text_seq("AMP") +2186 if not self._match(TokenType.INDEX): +2187 return None +2188 index = self._parse_id_var() +2189 columns = None +2190 if self._match(TokenType.L_PAREN, advance=False): +2191 columns = self._parse_wrapped_csv(self._parse_column) +2192 return self.expression( +2193 exp.Index, +2194 this=index, +2195 columns=columns, +2196 unique=unique, +2197 primary=primary, +2198 amp=amp, +2199 ) +2200 +2201 def _parse_table_parts(self, schema: bool = False) -> exp.Expression: +2202 catalog = None +2203 db = None +2204 +2205 table = ( +2206 (not schema and self._parse_function()) +2207 or self._parse_id_var(any_token=False) +2208 or self._parse_string_as_identifier() +2209 ) +2210 +2211 while self._match(TokenType.DOT): +2212 if catalog: +2213 # This allows nesting the table in arbitrarily many dot expressions if needed +2214 table = self.expression(exp.Dot, this=table, expression=self._parse_id_var()) +2215 else: +2216 catalog = db +2217 db = table +2218 table = self._parse_id_var() 2219 -2220 def _parse_table( -2221 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None -2222 ) -> t.Optional[exp.Expression]: -2223 lateral = self._parse_lateral() -2224 -2225 if lateral: -2226 return lateral -2227 -2228 unnest = self._parse_unnest() -2229 -2230 if unnest: -2231 return unnest -2232 -2233 values = self._parse_derived_table_values() +2220 if not table: +2221 self.raise_error(f"Expected table name but got {self._curr}") +2222 +2223 return self.expression( +2224 exp.Table, this=table, db=db, catalog=catalog, pivots=self._parse_pivots() +2225 ) +2226 +2227 def _parse_table( +2228 self, schema: bool = False, alias_tokens: t.Optional[t.Collection[TokenType]] = None +2229 ) -> t.Optional[exp.Expression]: +2230 lateral = self._parse_lateral() +2231 +2232 if lateral: +2233 return lateral 2234 -2235 if values: -2236 return values -2237 -2238 subquery = self._parse_select(table=True) +2235 unnest = self._parse_unnest() +2236 +2237 if unnest: +2238 return unnest 2239 -2240 if subquery: -2241 if not subquery.args.get("pivots"): -2242 subquery.set("pivots", self._parse_pivots()) -2243 return subquery +2240 values = self._parse_derived_table_values() +2241 +2242 if values: +2243 return values 2244 -2245 this = self._parse_table_parts(schema=schema) +2245 subquery = self._parse_select(table=True) 2246 -2247 if schema: -2248 return self._parse_schema(this=this) -2249 -2250 if self.alias_post_tablesample: -2251 table_sample = self._parse_table_sample() -2252 -2253 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) -2254 -2255 if alias: -2256 this.set("alias", alias) -2257 -2258 if not this.args.get("pivots"): -2259 this.set("pivots", self._parse_pivots()) -2260 -2261 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): -2262 this.set( -2263 "hints", -2264 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), -2265 ) -2266 self._match_r_paren() +2247 if subquery: +2248 if not subquery.args.get("pivots"): +2249 subquery.set("pivots", self._parse_pivots()) +2250 return subquery +2251 +2252 this = self._parse_table_parts(schema=schema) +2253 +2254 if schema: +2255 return self._parse_schema(this=this) +2256 +2257 if self.alias_post_tablesample: +2258 table_sample = self._parse_table_sample() +2259 +2260 alias = self._parse_table_alias(alias_tokens=alias_tokens or self.TABLE_ALIAS_TOKENS) +2261 +2262 if alias: +2263 this.set("alias", alias) +2264 +2265 if not this.args.get("pivots"): +2266 this.set("pivots", self._parse_pivots()) 2267 -2268 if not self.alias_post_tablesample: -2269 table_sample = self._parse_table_sample() -2270 -2271 if table_sample: -2272 table_sample.set("this", this) -2273 this = table_sample +2268 if self._match_pair(TokenType.WITH, TokenType.L_PAREN): +2269 this.set( +2270 "hints", +2271 self._parse_csv(lambda: self._parse_function() or self._parse_var(any_token=True)), +2272 ) +2273 self._match_r_paren() 2274 -2275 return this -2276 -2277 def _parse_unnest(self) -> t.Optional[exp.Expression]: -2278 if not self._match(TokenType.UNNEST): -2279 return None -2280 -2281 expressions = self._parse_wrapped_csv(self._parse_column) -2282 ordinality = self._match_pair(TokenType.WITH, TokenType.ORDINALITY) -2283 alias = self._parse_table_alias() -2284 -2285 if alias and self.unnest_column_only: -2286 if alias.args.get("columns"): -2287 self.raise_error("Unexpected extra column alias in unnest.") -2288 alias.set("columns", [alias.this]) -2289 alias.set("this", None) -2290 -2291 offset = None -2292 if self._match_pair(TokenType.WITH, TokenType.OFFSET): -2293 self._match(TokenType.ALIAS) -2294 offset = self._parse_id_var() or exp.Identifier(this="offset") -2295 -2296 return self.expression( -2297 exp.Unnest, -2298 expressions=expressions, -2299 ordinality=ordinality, -2300 alias=alias, -2301 offset=offset, -2302 ) -2303 -2304 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: -2305 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) -2306 if not is_derived and not self._match(TokenType.VALUES): -2307 return None -2308 -2309 expressions = self._parse_csv(self._parse_value) +2275 if not self.alias_post_tablesample: +2276 table_sample = self._parse_table_sample() +2277 +2278 if table_sample: +2279 table_sample.set("this", this) +2280 this = table_sample +2281 +2282 return this +2283 +2284 def _parse_unnest(self) -> t.Optional[exp.Expression]: +2285 if not self._match(TokenType.UNNEST): +2286 return None +2287 +2288 expressions = self._parse_wrapped_csv(self._parse_type) +2289 ordinality = self._match_pair(TokenType.WITH, TokenType.ORDINALITY) +2290 alias = self._parse_table_alias() +2291 +2292 if alias and self.unnest_column_only: +2293 if alias.args.get("columns"): +2294 self.raise_error("Unexpected extra column alias in unnest.") +2295 alias.set("columns", [alias.this]) +2296 alias.set("this", None) +2297 +2298 offset = None +2299 if self._match_pair(TokenType.WITH, TokenType.OFFSET): +2300 self._match(TokenType.ALIAS) +2301 offset = self._parse_id_var() or exp.Identifier(this="offset") +2302 +2303 return self.expression( +2304 exp.Unnest, +2305 expressions=expressions, +2306 ordinality=ordinality, +2307 alias=alias, +2308 offset=offset, +2309 ) 2310 -2311 if is_derived: -2312 self._match_r_paren() -2313 -2314 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2311 def _parse_derived_table_values(self) -> t.Optional[exp.Expression]: +2312 is_derived = self._match_pair(TokenType.L_PAREN, TokenType.VALUES) +2313 if not is_derived and not self._match(TokenType.VALUES): +2314 return None 2315 -2316 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: -2317 if not self._match(TokenType.TABLE_SAMPLE) and not ( -2318 as_modifier and self._match_text_seq("USING", "SAMPLE") -2319 ): -2320 return None -2321 -2322 bucket_numerator = None -2323 bucket_denominator = None -2324 bucket_field = None -2325 percent = None -2326 rows = None -2327 size = None -2328 seed = None -2329 -2330 kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" -2331 method = self._parse_var(tokens=(TokenType.ROW,)) -2332 -2333 self._match(TokenType.L_PAREN) -2334 -2335 num = self._parse_number() +2316 expressions = self._parse_csv(self._parse_value) +2317 +2318 if is_derived: +2319 self._match_r_paren() +2320 +2321 return self.expression(exp.Values, expressions=expressions, alias=self._parse_table_alias()) +2322 +2323 def _parse_table_sample(self, as_modifier: bool = False) -> t.Optional[exp.Expression]: +2324 if not self._match(TokenType.TABLE_SAMPLE) and not ( +2325 as_modifier and self._match_text_seq("USING", "SAMPLE") +2326 ): +2327 return None +2328 +2329 bucket_numerator = None +2330 bucket_denominator = None +2331 bucket_field = None +2332 percent = None +2333 rows = None +2334 size = None +2335 seed = None 2336 -2337 if self._match(TokenType.BUCKET): -2338 bucket_numerator = self._parse_number() -2339 self._match(TokenType.OUT_OF) -2340 bucket_denominator = bucket_denominator = self._parse_number() -2341 self._match(TokenType.ON) -2342 bucket_field = self._parse_field() -2343 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): -2344 percent = num -2345 elif self._match(TokenType.ROWS): -2346 rows = num -2347 else: -2348 size = num -2349 -2350 self._match(TokenType.R_PAREN) -2351 -2352 if self._match(TokenType.L_PAREN): -2353 method = self._parse_var() -2354 seed = self._match(TokenType.COMMA) and self._parse_number() -2355 self._match_r_paren() -2356 elif self._match_texts(("SEED", "REPEATABLE")): -2357 seed = self._parse_wrapped(self._parse_number) +2337 kind = ( +2338 self._prev.text if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" +2339 ) +2340 method = self._parse_var(tokens=(TokenType.ROW,)) +2341 +2342 self._match(TokenType.L_PAREN) +2343 +2344 num = self._parse_number() +2345 +2346 if self._match(TokenType.BUCKET): +2347 bucket_numerator = self._parse_number() +2348 self._match(TokenType.OUT_OF) +2349 bucket_denominator = bucket_denominator = self._parse_number() +2350 self._match(TokenType.ON) +2351 bucket_field = self._parse_field() +2352 elif self._match_set((TokenType.PERCENT, TokenType.MOD)): +2353 percent = num +2354 elif self._match(TokenType.ROWS): +2355 rows = num +2356 else: +2357 size = num 2358 -2359 return self.expression( -2360 exp.TableSample, -2361 method=method, -2362 bucket_numerator=bucket_numerator, -2363 bucket_denominator=bucket_denominator, -2364 bucket_field=bucket_field, -2365 percent=percent, -2366 rows=rows, -2367 size=size, -2368 seed=seed, -2369 kind=kind, -2370 ) -2371 -2372 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: -2373 return list(iter(self._parse_pivot, None)) -2374 -2375 def _parse_pivot(self) -> t.Optional[exp.Expression]: -2376 index = self._index -2377 -2378 if self._match(TokenType.PIVOT): -2379 unpivot = False -2380 elif self._match(TokenType.UNPIVOT): -2381 unpivot = True -2382 else: -2383 return None -2384 -2385 expressions = [] -2386 field = None -2387 -2388 if not self._match(TokenType.L_PAREN): -2389 self._retreat(index) -2390 return None -2391 -2392 if unpivot: -2393 expressions = self._parse_csv(self._parse_column) -2394 else: -2395 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2359 self._match(TokenType.R_PAREN) +2360 +2361 if self._match(TokenType.L_PAREN): +2362 method = self._parse_var() +2363 seed = self._match(TokenType.COMMA) and self._parse_number() +2364 self._match_r_paren() +2365 elif self._match_texts(("SEED", "REPEATABLE")): +2366 seed = self._parse_wrapped(self._parse_number) +2367 +2368 return self.expression( +2369 exp.TableSample, +2370 method=method, +2371 bucket_numerator=bucket_numerator, +2372 bucket_denominator=bucket_denominator, +2373 bucket_field=bucket_field, +2374 percent=percent, +2375 rows=rows, +2376 size=size, +2377 seed=seed, +2378 kind=kind, +2379 ) +2380 +2381 def _parse_pivots(self) -> t.List[t.Optional[exp.Expression]]: +2382 return list(iter(self._parse_pivot, None)) +2383 +2384 def _parse_pivot(self) -> t.Optional[exp.Expression]: +2385 index = self._index +2386 +2387 if self._match(TokenType.PIVOT): +2388 unpivot = False +2389 elif self._match(TokenType.UNPIVOT): +2390 unpivot = True +2391 else: +2392 return None +2393 +2394 expressions = [] +2395 field = None 2396 -2397 if not expressions: -2398 self.raise_error("Failed to parse PIVOT's aggregation list") -2399 -2400 if not self._match(TokenType.FOR): -2401 self.raise_error("Expecting FOR") -2402 -2403 value = self._parse_column() -2404 -2405 if not self._match(TokenType.IN): -2406 self.raise_error("Expecting IN") -2407 -2408 field = self._parse_in(value) -2409 -2410 self._match_r_paren() +2397 if not self._match(TokenType.L_PAREN): +2398 self._retreat(index) +2399 return None +2400 +2401 if unpivot: +2402 expressions = self._parse_csv(self._parse_column) +2403 else: +2404 expressions = self._parse_csv(lambda: self._parse_alias(self._parse_function())) +2405 +2406 if not expressions: +2407 self.raise_error("Failed to parse PIVOT's aggregation list") +2408 +2409 if not self._match(TokenType.FOR): +2410 self.raise_error("Expecting FOR") 2411 -2412 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2412 value = self._parse_column() 2413 -2414 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): -2415 pivot.set("alias", self._parse_table_alias()) +2414 if not self._match(TokenType.IN): +2415 self.raise_error("Expecting IN") 2416 -2417 if not unpivot: -2418 names = self._pivot_column_names(t.cast(t.List[exp.Expression], expressions)) -2419 -2420 columns: t.List[exp.Expression] = [] -2421 for col in pivot.args["field"].expressions: -2422 for name in names: -2423 if self.PREFIXED_PIVOT_COLUMNS: -2424 name = f"{name}_{col.alias_or_name}" if name else col.alias_or_name -2425 else: -2426 name = f"{col.alias_or_name}_{name}" if name else col.alias_or_name -2427 -2428 columns.append(exp.to_identifier(name, quoted=self.QUOTED_PIVOT_COLUMNS)) -2429 -2430 pivot.set("columns", columns) -2431 -2432 return pivot -2433 -2434 def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: -2435 return [agg.alias for agg in pivot_columns] +2417 field = self._parse_in(value) +2418 +2419 self._match_r_paren() +2420 +2421 pivot = self.expression(exp.Pivot, expressions=expressions, field=field, unpivot=unpivot) +2422 +2423 if not self._match_set((TokenType.PIVOT, TokenType.UNPIVOT), advance=False): +2424 pivot.set("alias", self._parse_table_alias()) +2425 +2426 if not unpivot: +2427 names = self._pivot_column_names(t.cast(t.List[exp.Expression], expressions)) +2428 +2429 columns: t.List[exp.Expression] = [] +2430 for col in pivot.args["field"].expressions: +2431 for name in names: +2432 if self.PREFIXED_PIVOT_COLUMNS: +2433 name = f"{name}_{col.alias_or_name}" if name else col.alias_or_name +2434 else: +2435 name = f"{col.alias_or_name}_{name}" if name else col.alias_or_name 2436 -2437 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: -2438 if not skip_where_token and not self._match(TokenType.WHERE): -2439 return None +2437 columns.append(exp.to_identifier(name, quoted=self.QUOTED_PIVOT_COLUMNS)) +2438 +2439 pivot.set("columns", columns) 2440 -2441 return self.expression( -2442 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() -2443 ) -2444 -2445 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: -2446 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): -2447 return None -2448 -2449 elements = defaultdict(list) -2450 -2451 while True: -2452 expressions = self._parse_csv(self._parse_conjunction) -2453 if expressions: -2454 elements["expressions"].extend(expressions) -2455 -2456 grouping_sets = self._parse_grouping_sets() -2457 if grouping_sets: -2458 elements["grouping_sets"].extend(grouping_sets) +2441 return pivot +2442 +2443 def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: +2444 return [agg.alias for agg in pivot_columns] +2445 +2446 def _parse_where(self, skip_where_token: bool = False) -> t.Optional[exp.Expression]: +2447 if not skip_where_token and not self._match(TokenType.WHERE): +2448 return None +2449 +2450 return self.expression( +2451 exp.Where, comments=self._prev_comments, this=self._parse_conjunction() +2452 ) +2453 +2454 def _parse_group(self, skip_group_by_token: bool = False) -> t.Optional[exp.Expression]: +2455 if not skip_group_by_token and not self._match(TokenType.GROUP_BY): +2456 return None +2457 +2458 elements = defaultdict(list) 2459 -2460 rollup = None -2461 cube = None -2462 -2463 with_ = self._match(TokenType.WITH) -2464 if self._match(TokenType.ROLLUP): -2465 rollup = with_ or self._parse_wrapped_csv(self._parse_column) -2466 elements["rollup"].extend(ensure_list(rollup)) -2467 -2468 if self._match(TokenType.CUBE): -2469 cube = with_ or self._parse_wrapped_csv(self._parse_column) -2470 elements["cube"].extend(ensure_list(cube)) +2460 while True: +2461 expressions = self._parse_csv(self._parse_conjunction) +2462 if expressions: +2463 elements["expressions"].extend(expressions) +2464 +2465 grouping_sets = self._parse_grouping_sets() +2466 if grouping_sets: +2467 elements["grouping_sets"].extend(grouping_sets) +2468 +2469 rollup = None +2470 cube = None 2471 -2472 if not (expressions or grouping_sets or rollup or cube): -2473 break -2474 -2475 return self.expression(exp.Group, **elements) # type: ignore +2472 with_ = self._match(TokenType.WITH) +2473 if self._match(TokenType.ROLLUP): +2474 rollup = with_ or self._parse_wrapped_csv(self._parse_column) +2475 elements["rollup"].extend(ensure_list(rollup)) 2476 -2477 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -2478 if not self._match(TokenType.GROUPING_SETS): -2479 return None +2477 if self._match(TokenType.CUBE): +2478 cube = with_ or self._parse_wrapped_csv(self._parse_column) +2479 elements["cube"].extend(ensure_list(cube)) 2480 -2481 return self._parse_wrapped_csv(self._parse_grouping_set) -2482 -2483 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: -2484 if self._match(TokenType.L_PAREN): -2485 grouping_set = self._parse_csv(self._parse_column) -2486 self._match_r_paren() -2487 return self.expression(exp.Tuple, expressions=grouping_set) -2488 -2489 return self._parse_column() -2490 -2491 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: -2492 if not skip_having_token and not self._match(TokenType.HAVING): -2493 return None -2494 return self.expression(exp.Having, this=self._parse_conjunction()) -2495 -2496 def _parse_qualify(self) -> t.Optional[exp.Expression]: -2497 if not self._match(TokenType.QUALIFY): -2498 return None -2499 return self.expression(exp.Qualify, this=self._parse_conjunction()) -2500 -2501 def _parse_order( -2502 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False -2503 ) -> t.Optional[exp.Expression]: -2504 if not skip_order_token and not self._match(TokenType.ORDER_BY): -2505 return this -2506 -2507 return self.expression( -2508 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) -2509 ) -2510 -2511 def _parse_sort( -2512 self, token_type: TokenType, exp_class: t.Type[exp.Expression] -2513 ) -> t.Optional[exp.Expression]: -2514 if not self._match(token_type): -2515 return None -2516 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) -2517 -2518 def _parse_ordered(self) -> exp.Expression: -2519 this = self._parse_conjunction() -2520 self._match(TokenType.ASC) -2521 is_desc = self._match(TokenType.DESC) -2522 is_nulls_first = self._match(TokenType.NULLS_FIRST) -2523 is_nulls_last = self._match(TokenType.NULLS_LAST) -2524 desc = is_desc or False -2525 asc = not desc -2526 nulls_first = is_nulls_first or False -2527 explicitly_null_ordered = is_nulls_first or is_nulls_last -2528 if ( -2529 not explicitly_null_ordered -2530 and ( -2531 (asc and self.null_ordering == "nulls_are_small") -2532 or (desc and self.null_ordering != "nulls_are_small") -2533 ) -2534 and self.null_ordering != "nulls_are_last" -2535 ): -2536 nulls_first = True -2537 -2538 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) -2539 -2540 def _parse_limit( -2541 self, this: t.Optional[exp.Expression] = None, top: bool = False -2542 ) -> t.Optional[exp.Expression]: -2543 if self._match(TokenType.TOP if top else TokenType.LIMIT): -2544 limit_paren = self._match(TokenType.L_PAREN) -2545 limit_exp = self.expression( -2546 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() -2547 ) +2481 if not (expressions or grouping_sets or rollup or cube): +2482 break +2483 +2484 return self.expression(exp.Group, **elements) # type: ignore +2485 +2486 def _parse_grouping_sets(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +2487 if not self._match(TokenType.GROUPING_SETS): +2488 return None +2489 +2490 return self._parse_wrapped_csv(self._parse_grouping_set) +2491 +2492 def _parse_grouping_set(self) -> t.Optional[exp.Expression]: +2493 if self._match(TokenType.L_PAREN): +2494 grouping_set = self._parse_csv(self._parse_column) +2495 self._match_r_paren() +2496 return self.expression(exp.Tuple, expressions=grouping_set) +2497 +2498 return self._parse_column() +2499 +2500 def _parse_having(self, skip_having_token: bool = False) -> t.Optional[exp.Expression]: +2501 if not skip_having_token and not self._match(TokenType.HAVING): +2502 return None +2503 return self.expression(exp.Having, this=self._parse_conjunction()) +2504 +2505 def _parse_qualify(self) -> t.Optional[exp.Expression]: +2506 if not self._match(TokenType.QUALIFY): +2507 return None +2508 return self.expression(exp.Qualify, this=self._parse_conjunction()) +2509 +2510 def _parse_order( +2511 self, this: t.Optional[exp.Expression] = None, skip_order_token: bool = False +2512 ) -> t.Optional[exp.Expression]: +2513 if not skip_order_token and not self._match(TokenType.ORDER_BY): +2514 return this +2515 +2516 return self.expression( +2517 exp.Order, this=this, expressions=self._parse_csv(self._parse_ordered) +2518 ) +2519 +2520 def _parse_sort( +2521 self, token_type: TokenType, exp_class: t.Type[exp.Expression] +2522 ) -> t.Optional[exp.Expression]: +2523 if not self._match(token_type): +2524 return None +2525 return self.expression(exp_class, expressions=self._parse_csv(self._parse_ordered)) +2526 +2527 def _parse_ordered(self) -> exp.Expression: +2528 this = self._parse_conjunction() +2529 self._match(TokenType.ASC) +2530 is_desc = self._match(TokenType.DESC) +2531 is_nulls_first = self._match(TokenType.NULLS_FIRST) +2532 is_nulls_last = self._match(TokenType.NULLS_LAST) +2533 desc = is_desc or False +2534 asc = not desc +2535 nulls_first = is_nulls_first or False +2536 explicitly_null_ordered = is_nulls_first or is_nulls_last +2537 if ( +2538 not explicitly_null_ordered +2539 and ( +2540 (asc and self.null_ordering == "nulls_are_small") +2541 or (desc and self.null_ordering != "nulls_are_small") +2542 ) +2543 and self.null_ordering != "nulls_are_last" +2544 ): +2545 nulls_first = True +2546 +2547 return self.expression(exp.Ordered, this=this, desc=desc, nulls_first=nulls_first) 2548 -2549 if limit_paren: -2550 self._match_r_paren() -2551 -2552 return limit_exp -2553 -2554 if self._match(TokenType.FETCH): -2555 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) -2556 direction = self._prev.text if direction else "FIRST" +2549 def _parse_limit( +2550 self, this: t.Optional[exp.Expression] = None, top: bool = False +2551 ) -> t.Optional[exp.Expression]: +2552 if self._match(TokenType.TOP if top else TokenType.LIMIT): +2553 limit_paren = self._match(TokenType.L_PAREN) +2554 limit_exp = self.expression( +2555 exp.Limit, this=this, expression=self._parse_number() if top else self._parse_term() +2556 ) 2557 -2558 count = self._parse_number() -2559 percent = self._match(TokenType.PERCENT) +2558 if limit_paren: +2559 self._match_r_paren() 2560 -2561 self._match_set((TokenType.ROW, TokenType.ROWS)) +2561 return limit_exp 2562 -2563 only = self._match(TokenType.ONLY) -2564 with_ties = self._match_text_seq("WITH", "TIES") -2565 -2566 if only and with_ties: -2567 self.raise_error("Cannot specify both ONLY and WITH TIES in FETCH clause") -2568 -2569 return self.expression( -2570 exp.Fetch, -2571 direction=direction, -2572 count=count, -2573 percent=percent, -2574 with_ties=with_ties, -2575 ) -2576 -2577 return this -2578 -2579 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -2580 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): -2581 return this -2582 -2583 count = self._parse_number() -2584 self._match_set((TokenType.ROW, TokenType.ROWS)) -2585 return self.expression(exp.Offset, this=this, expression=count) -2586 -2587 def _parse_lock(self) -> t.Optional[exp.Expression]: -2588 if self._match_text_seq("FOR", "UPDATE"): -2589 return self.expression(exp.Lock, update=True) -2590 if self._match_text_seq("FOR", "SHARE"): -2591 return self.expression(exp.Lock, update=False) -2592 -2593 return None -2594 -2595 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2596 if not self._match_set(self.SET_OPERATIONS): -2597 return this -2598 -2599 token_type = self._prev.token_type -2600 -2601 if token_type == TokenType.UNION: -2602 expression = exp.Union -2603 elif token_type == TokenType.EXCEPT: -2604 expression = exp.Except -2605 else: -2606 expression = exp.Intersect +2563 if self._match(TokenType.FETCH): +2564 direction = self._match_set((TokenType.FIRST, TokenType.NEXT)) +2565 direction = self._prev.text if direction else "FIRST" +2566 +2567 count = self._parse_number() +2568 percent = self._match(TokenType.PERCENT) +2569 +2570 self._match_set((TokenType.ROW, TokenType.ROWS)) +2571 +2572 only = self._match(TokenType.ONLY) +2573 with_ties = self._match_text_seq("WITH", "TIES") +2574 +2575 if only and with_ties: +2576 self.raise_error("Cannot specify both ONLY and WITH TIES in FETCH clause") +2577 +2578 return self.expression( +2579 exp.Fetch, +2580 direction=direction, +2581 count=count, +2582 percent=percent, +2583 with_ties=with_ties, +2584 ) +2585 +2586 return this +2587 +2588 def _parse_offset(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +2589 if not self._match_set((TokenType.OFFSET, TokenType.COMMA)): +2590 return this +2591 +2592 count = self._parse_number() +2593 self._match_set((TokenType.ROW, TokenType.ROWS)) +2594 return self.expression(exp.Offset, this=this, expression=count) +2595 +2596 def _parse_lock(self) -> t.Optional[exp.Expression]: +2597 if self._match_text_seq("FOR", "UPDATE"): +2598 return self.expression(exp.Lock, update=True) +2599 if self._match_text_seq("FOR", "SHARE"): +2600 return self.expression(exp.Lock, update=False) +2601 +2602 return None +2603 +2604 def _parse_set_operations(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2605 if not self._match_set(self.SET_OPERATIONS): +2606 return this 2607 -2608 return self.expression( -2609 expression, -2610 this=this, -2611 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), -2612 expression=self._parse_set_operations(self._parse_select(nested=True)), -2613 ) -2614 -2615 def _parse_expression(self) -> t.Optional[exp.Expression]: -2616 return self._parse_alias(self._parse_conjunction()) -2617 -2618 def _parse_conjunction(self) -> t.Optional[exp.Expression]: -2619 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) -2620 -2621 def _parse_equality(self) -> t.Optional[exp.Expression]: -2622 return self._parse_tokens(self._parse_comparison, self.EQUALITY) +2608 token_type = self._prev.token_type +2609 +2610 if token_type == TokenType.UNION: +2611 expression = exp.Union +2612 elif token_type == TokenType.EXCEPT: +2613 expression = exp.Except +2614 else: +2615 expression = exp.Intersect +2616 +2617 return self.expression( +2618 expression, +2619 this=this, +2620 distinct=self._match(TokenType.DISTINCT) or not self._match(TokenType.ALL), +2621 expression=self._parse_set_operations(self._parse_select(nested=True)), +2622 ) 2623 -2624 def _parse_comparison(self) -> t.Optional[exp.Expression]: -2625 return self._parse_tokens(self._parse_range, self.COMPARISON) +2624 def _parse_expression(self) -> t.Optional[exp.Expression]: +2625 return self._parse_alias(self._parse_conjunction()) 2626 -2627 def _parse_range(self) -> t.Optional[exp.Expression]: -2628 this = self._parse_bitwise() -2629 negate = self._match(TokenType.NOT) -2630 -2631 if self._match_set(self.RANGE_PARSERS): -2632 expression = self.RANGE_PARSERS[self._prev.token_type](self, this) -2633 if not expression: -2634 return this +2627 def _parse_conjunction(self) -> t.Optional[exp.Expression]: +2628 return self._parse_tokens(self._parse_equality, self.CONJUNCTION) +2629 +2630 def _parse_equality(self) -> t.Optional[exp.Expression]: +2631 return self._parse_tokens(self._parse_comparison, self.EQUALITY) +2632 +2633 def _parse_comparison(self) -> t.Optional[exp.Expression]: +2634 return self._parse_tokens(self._parse_range, self.COMPARISON) 2635 -2636 this = expression -2637 elif self._match(TokenType.ISNULL): -2638 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2636 def _parse_range(self) -> t.Optional[exp.Expression]: +2637 this = self._parse_bitwise() +2638 negate = self._match(TokenType.NOT) 2639 -2640 # Postgres supports ISNULL and NOTNULL for conditions. -2641 # https://blog.andreiavram.ro/postgresql-null-composite-type/ -2642 if self._match(TokenType.NOTNULL): -2643 this = self.expression(exp.Is, this=this, expression=exp.Null()) -2644 this = self.expression(exp.Not, this=this) -2645 -2646 if negate: -2647 this = self.expression(exp.Not, this=this) +2640 if self._match_set(self.RANGE_PARSERS): +2641 expression = self.RANGE_PARSERS[self._prev.token_type](self, this) +2642 if not expression: +2643 return this +2644 +2645 this = expression +2646 elif self._match(TokenType.ISNULL): +2647 this = self.expression(exp.Is, this=this, expression=exp.Null()) 2648 -2649 if self._match(TokenType.IS): -2650 this = self._parse_is(this) -2651 -2652 return this -2653 -2654 def _parse_is(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2655 index = self._index - 1 -2656 negate = self._match(TokenType.NOT) -2657 if self._match(TokenType.DISTINCT_FROM): -2658 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ -2659 return self.expression(klass, this=this, expression=self._parse_expression()) +2649 # Postgres supports ISNULL and NOTNULL for conditions. +2650 # https://blog.andreiavram.ro/postgresql-null-composite-type/ +2651 if self._match(TokenType.NOTNULL): +2652 this = self.expression(exp.Is, this=this, expression=exp.Null()) +2653 this = self.expression(exp.Not, this=this) +2654 +2655 if negate: +2656 this = self.expression(exp.Not, this=this) +2657 +2658 if self._match(TokenType.IS): +2659 this = self._parse_is(this) 2660 -2661 expression = self._parse_null() or self._parse_boolean() -2662 if not expression: -2663 self._retreat(index) -2664 return None -2665 -2666 this = self.expression(exp.Is, this=this, expression=expression) -2667 return self.expression(exp.Not, this=this) if negate else this -2668 -2669 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: -2670 unnest = self._parse_unnest() -2671 if unnest: -2672 this = self.expression(exp.In, this=this, unnest=unnest) -2673 elif self._match(TokenType.L_PAREN): -2674 expressions = self._parse_csv(self._parse_select_or_expression) -2675 -2676 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): -2677 this = self.expression(exp.In, this=this, query=expressions[0]) -2678 else: -2679 this = self.expression(exp.In, this=this, expressions=expressions) -2680 -2681 self._match_r_paren() -2682 else: -2683 this = self.expression(exp.In, this=this, field=self._parse_field()) +2661 return this +2662 +2663 def _parse_is(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2664 index = self._index - 1 +2665 negate = self._match(TokenType.NOT) +2666 if self._match(TokenType.DISTINCT_FROM): +2667 klass = exp.NullSafeEQ if negate else exp.NullSafeNEQ +2668 return self.expression(klass, this=this, expression=self._parse_expression()) +2669 +2670 expression = self._parse_null() or self._parse_boolean() +2671 if not expression: +2672 self._retreat(index) +2673 return None +2674 +2675 this = self.expression(exp.Is, this=this, expression=expression) +2676 return self.expression(exp.Not, this=this) if negate else this +2677 +2678 def _parse_in(self, this: t.Optional[exp.Expression]) -> exp.Expression: +2679 unnest = self._parse_unnest() +2680 if unnest: +2681 this = self.expression(exp.In, this=this, unnest=unnest) +2682 elif self._match(TokenType.L_PAREN): +2683 expressions = self._parse_csv(self._parse_select_or_expression) 2684 -2685 return this -2686 -2687 def _parse_between(self, this: exp.Expression) -> exp.Expression: -2688 low = self._parse_bitwise() -2689 self._match(TokenType.AND) -2690 high = self._parse_bitwise() -2691 return self.expression(exp.Between, this=this, low=low, high=high) -2692 -2693 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2694 if not self._match(TokenType.ESCAPE): -2695 return this -2696 return self.expression(exp.Escape, this=this, expression=self._parse_string()) -2697 -2698 def _parse_interval(self) -> t.Optional[exp.Expression]: -2699 if not self._match(TokenType.INTERVAL): -2700 return None +2685 if len(expressions) == 1 and isinstance(expressions[0], exp.Subqueryable): +2686 this = self.expression(exp.In, this=this, query=expressions[0]) +2687 else: +2688 this = self.expression(exp.In, this=this, expressions=expressions) +2689 +2690 self._match_r_paren() +2691 else: +2692 this = self.expression(exp.In, this=this, field=self._parse_field()) +2693 +2694 return this +2695 +2696 def _parse_between(self, this: exp.Expression) -> exp.Expression: +2697 low = self._parse_bitwise() +2698 self._match(TokenType.AND) +2699 high = self._parse_bitwise() +2700 return self.expression(exp.Between, this=this, low=low, high=high) 2701 -2702 this = self._parse_primary() or self._parse_term() -2703 unit = self._parse_function() or self._parse_var() -2704 -2705 # Most dialects support, e.g., the form INTERVAL '5' day, thus we try to parse -2706 # each INTERVAL expression into this canonical form so it's easy to transpile -2707 if this and isinstance(this, exp.Literal): -2708 if this.is_number: -2709 this = exp.Literal.string(this.name) +2702 def _parse_escape(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2703 if not self._match(TokenType.ESCAPE): +2704 return this +2705 return self.expression(exp.Escape, this=this, expression=self._parse_string()) +2706 +2707 def _parse_interval(self) -> t.Optional[exp.Expression]: +2708 if not self._match(TokenType.INTERVAL): +2709 return None 2710 -2711 # Try to not clutter Snowflake's multi-part intervals like INTERVAL '1 day, 1 year' -2712 parts = this.name.split() -2713 if not unit and len(parts) <= 2: -2714 this = exp.Literal.string(seq_get(parts, 0)) -2715 unit = self.expression(exp.Var, this=seq_get(parts, 1)) -2716 -2717 return self.expression(exp.Interval, this=this, unit=unit) -2718 -2719 def _parse_bitwise(self) -> t.Optional[exp.Expression]: -2720 this = self._parse_term() -2721 -2722 while True: -2723 if self._match_set(self.BITWISE): -2724 this = self.expression( -2725 self.BITWISE[self._prev.token_type], -2726 this=this, -2727 expression=self._parse_term(), -2728 ) -2729 elif self._match_pair(TokenType.LT, TokenType.LT): -2730 this = self.expression( -2731 exp.BitwiseLeftShift, this=this, expression=self._parse_term() -2732 ) -2733 elif self._match_pair(TokenType.GT, TokenType.GT): -2734 this = self.expression( -2735 exp.BitwiseRightShift, this=this, expression=self._parse_term() -2736 ) -2737 else: -2738 break -2739 -2740 return this -2741 -2742 def _parse_term(self) -> t.Optional[exp.Expression]: -2743 return self._parse_tokens(self._parse_factor, self.TERM) -2744 -2745 def _parse_factor(self) -> t.Optional[exp.Expression]: -2746 return self._parse_tokens(self._parse_unary, self.FACTOR) -2747 -2748 def _parse_unary(self) -> t.Optional[exp.Expression]: -2749 if self._match_set(self.UNARY_PARSERS): -2750 return self.UNARY_PARSERS[self._prev.token_type](self) -2751 return self._parse_at_time_zone(self._parse_type()) -2752 -2753 def _parse_type(self) -> t.Optional[exp.Expression]: -2754 interval = self._parse_interval() -2755 if interval: -2756 return interval -2757 -2758 index = self._index -2759 data_type = self._parse_types(check_func=True) -2760 this = self._parse_column() +2711 this = self._parse_primary() or self._parse_term() +2712 unit = self._parse_function() or self._parse_var() +2713 +2714 # Most dialects support, e.g., the form INTERVAL '5' day, thus we try to parse +2715 # each INTERVAL expression into this canonical form so it's easy to transpile +2716 if this and isinstance(this, exp.Literal): +2717 if this.is_number: +2718 this = exp.Literal.string(this.name) +2719 +2720 # Try to not clutter Snowflake's multi-part intervals like INTERVAL '1 day, 1 year' +2721 parts = this.name.split() +2722 if not unit and len(parts) <= 2: +2723 this = exp.Literal.string(seq_get(parts, 0)) +2724 unit = self.expression(exp.Var, this=seq_get(parts, 1)) +2725 +2726 return self.expression(exp.Interval, this=this, unit=unit) +2727 +2728 def _parse_bitwise(self) -> t.Optional[exp.Expression]: +2729 this = self._parse_term() +2730 +2731 while True: +2732 if self._match_set(self.BITWISE): +2733 this = self.expression( +2734 self.BITWISE[self._prev.token_type], +2735 this=this, +2736 expression=self._parse_term(), +2737 ) +2738 elif self._match_pair(TokenType.LT, TokenType.LT): +2739 this = self.expression( +2740 exp.BitwiseLeftShift, this=this, expression=self._parse_term() +2741 ) +2742 elif self._match_pair(TokenType.GT, TokenType.GT): +2743 this = self.expression( +2744 exp.BitwiseRightShift, this=this, expression=self._parse_term() +2745 ) +2746 else: +2747 break +2748 +2749 return this +2750 +2751 def _parse_term(self) -> t.Optional[exp.Expression]: +2752 return self._parse_tokens(self._parse_factor, self.TERM) +2753 +2754 def _parse_factor(self) -> t.Optional[exp.Expression]: +2755 return self._parse_tokens(self._parse_unary, self.FACTOR) +2756 +2757 def _parse_unary(self) -> t.Optional[exp.Expression]: +2758 if self._match_set(self.UNARY_PARSERS): +2759 return self.UNARY_PARSERS[self._prev.token_type](self) +2760 return self._parse_at_time_zone(self._parse_type()) 2761 -2762 if data_type: -2763 if isinstance(this, exp.Literal): -2764 parser = self.TYPE_LITERAL_PARSERS.get(data_type.this) -2765 if parser: -2766 return parser(self, this, data_type) -2767 return self.expression(exp.Cast, this=this, to=data_type) -2768 if not data_type.args.get("expressions"): -2769 self._retreat(index) -2770 return self._parse_column() -2771 return data_type -2772 -2773 return this -2774 -2775 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: -2776 index = self._index -2777 -2778 prefix = self._match_text_seq("SYSUDTLIB", ".") -2779 -2780 if not self._match_set(self.TYPE_TOKENS): -2781 return None -2782 -2783 type_token = self._prev.token_type -2784 -2785 if type_token == TokenType.PSEUDO_TYPE: -2786 return self.expression(exp.PseudoType, this=self._prev.text) -2787 -2788 nested = type_token in self.NESTED_TYPE_TOKENS -2789 is_struct = type_token == TokenType.STRUCT -2790 expressions = None -2791 maybe_func = False -2792 -2793 if self._match(TokenType.L_PAREN): -2794 if is_struct: -2795 expressions = self._parse_csv(self._parse_struct_kwargs) -2796 elif nested: -2797 expressions = self._parse_csv(self._parse_types) -2798 else: -2799 expressions = self._parse_csv(self._parse_conjunction) -2800 -2801 if not expressions: -2802 self._retreat(index) -2803 return None -2804 -2805 self._match_r_paren() -2806 maybe_func = True -2807 -2808 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2809 this = exp.DataType( -2810 this=exp.DataType.Type.ARRAY, -2811 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], -2812 nested=True, -2813 ) -2814 -2815 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): -2816 this = exp.DataType( -2817 this=exp.DataType.Type.ARRAY, -2818 expressions=[this], -2819 nested=True, -2820 ) -2821 -2822 return this -2823 -2824 if self._match(TokenType.L_BRACKET): -2825 self._retreat(index) -2826 return None -2827 -2828 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None -2829 if nested and self._match(TokenType.LT): -2830 if is_struct: -2831 expressions = self._parse_csv(self._parse_struct_kwargs) -2832 else: -2833 expressions = self._parse_csv(self._parse_types) -2834 -2835 if not self._match(TokenType.GT): -2836 self.raise_error("Expecting >") -2837 -2838 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): -2839 values = self._parse_csv(self._parse_conjunction) -2840 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) -2841 -2842 value: t.Optional[exp.Expression] = None -2843 if type_token in self.TIMESTAMPS: -2844 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: -2845 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) -2846 elif ( -2847 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ -2848 ): -2849 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) -2850 elif self._match(TokenType.WITHOUT_TIME_ZONE): -2851 if type_token == TokenType.TIME: -2852 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) -2853 else: -2854 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2855 -2856 maybe_func = maybe_func and value is None -2857 -2858 if value is None: -2859 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) -2860 elif type_token == TokenType.INTERVAL: -2861 unit = self._parse_var() -2862 -2863 if not unit: -2864 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) -2865 else: -2866 value = self.expression(exp.Interval, unit=unit) -2867 -2868 if maybe_func and check_func: -2869 index2 = self._index -2870 peek = self._parse_string() -2871 -2872 if not peek: -2873 self._retreat(index) -2874 return None +2762 def _parse_type(self) -> t.Optional[exp.Expression]: +2763 interval = self._parse_interval() +2764 if interval: +2765 return interval +2766 +2767 index = self._index +2768 data_type = self._parse_types(check_func=True) +2769 this = self._parse_column() +2770 +2771 if data_type: +2772 if isinstance(this, exp.Literal): +2773 parser = self.TYPE_LITERAL_PARSERS.get(data_type.this) +2774 if parser: +2775 return parser(self, this, data_type) +2776 return self.expression(exp.Cast, this=this, to=data_type) +2777 if not data_type.args.get("expressions"): +2778 self._retreat(index) +2779 return self._parse_column() +2780 return data_type +2781 +2782 return this +2783 +2784 def _parse_types(self, check_func: bool = False) -> t.Optional[exp.Expression]: +2785 index = self._index +2786 +2787 prefix = self._match_text_seq("SYSUDTLIB", ".") +2788 +2789 if not self._match_set(self.TYPE_TOKENS): +2790 return None +2791 +2792 type_token = self._prev.token_type +2793 +2794 if type_token == TokenType.PSEUDO_TYPE: +2795 return self.expression(exp.PseudoType, this=self._prev.text) +2796 +2797 nested = type_token in self.NESTED_TYPE_TOKENS +2798 is_struct = type_token == TokenType.STRUCT +2799 expressions = None +2800 maybe_func = False +2801 +2802 if self._match(TokenType.L_PAREN): +2803 if is_struct: +2804 expressions = self._parse_csv(self._parse_struct_kwargs) +2805 elif nested: +2806 expressions = self._parse_csv(self._parse_types) +2807 else: +2808 expressions = self._parse_csv(self._parse_conjunction) +2809 +2810 if not expressions or not self._match(TokenType.R_PAREN): +2811 self._retreat(index) +2812 return None +2813 +2814 maybe_func = True +2815 +2816 if self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2817 this = exp.DataType( +2818 this=exp.DataType.Type.ARRAY, +2819 expressions=[exp.DataType.build(type_token.value, expressions=expressions)], +2820 nested=True, +2821 ) +2822 +2823 while self._match_pair(TokenType.L_BRACKET, TokenType.R_BRACKET): +2824 this = exp.DataType( +2825 this=exp.DataType.Type.ARRAY, +2826 expressions=[this], +2827 nested=True, +2828 ) +2829 +2830 return this +2831 +2832 if self._match(TokenType.L_BRACKET): +2833 self._retreat(index) +2834 return None +2835 +2836 values: t.Optional[t.List[t.Optional[exp.Expression]]] = None +2837 if nested and self._match(TokenType.LT): +2838 if is_struct: +2839 expressions = self._parse_csv(self._parse_struct_kwargs) +2840 else: +2841 expressions = self._parse_csv(self._parse_types) +2842 +2843 if not self._match(TokenType.GT): +2844 self.raise_error("Expecting >") +2845 +2846 if self._match_set((TokenType.L_BRACKET, TokenType.L_PAREN)): +2847 values = self._parse_csv(self._parse_conjunction) +2848 self._match_set((TokenType.R_BRACKET, TokenType.R_PAREN)) +2849 +2850 value: t.Optional[exp.Expression] = None +2851 if type_token in self.TIMESTAMPS: +2852 if self._match(TokenType.WITH_TIME_ZONE) or type_token == TokenType.TIMESTAMPTZ: +2853 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPTZ, expressions=expressions) +2854 elif ( +2855 self._match(TokenType.WITH_LOCAL_TIME_ZONE) or type_token == TokenType.TIMESTAMPLTZ +2856 ): +2857 value = exp.DataType(this=exp.DataType.Type.TIMESTAMPLTZ, expressions=expressions) +2858 elif self._match(TokenType.WITHOUT_TIME_ZONE): +2859 if type_token == TokenType.TIME: +2860 value = exp.DataType(this=exp.DataType.Type.TIME, expressions=expressions) +2861 else: +2862 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2863 +2864 maybe_func = maybe_func and value is None +2865 +2866 if value is None: +2867 value = exp.DataType(this=exp.DataType.Type.TIMESTAMP, expressions=expressions) +2868 elif type_token == TokenType.INTERVAL: +2869 unit = self._parse_var() +2870 +2871 if not unit: +2872 value = self.expression(exp.DataType, this=exp.DataType.Type.INTERVAL) +2873 else: +2874 value = self.expression(exp.Interval, unit=unit) 2875 -2876 self._retreat(index2) -2877 -2878 if value: -2879 return value -2880 -2881 return exp.DataType( -2882 this=exp.DataType.Type[type_token.value.upper()], -2883 expressions=expressions, -2884 nested=nested, -2885 values=values, -2886 prefix=prefix, -2887 ) +2876 if maybe_func and check_func: +2877 index2 = self._index +2878 peek = self._parse_string() +2879 +2880 if not peek: +2881 self._retreat(index) +2882 return None +2883 +2884 self._retreat(index2) +2885 +2886 if value: +2887 return value 2888 -2889 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: -2890 index = self._index -2891 this = self._parse_id_var() -2892 self._match(TokenType.COLON) -2893 data_type = self._parse_types() -2894 -2895 if not data_type: -2896 self._retreat(index) -2897 return self._parse_types() -2898 return self.expression(exp.StructKwarg, this=this, expression=data_type) -2899 -2900 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -2901 if not self._match(TokenType.AT_TIME_ZONE): -2902 return this -2903 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) -2904 -2905 def _parse_column(self) -> t.Optional[exp.Expression]: -2906 this = self._parse_field() -2907 if isinstance(this, exp.Identifier): -2908 this = self.expression(exp.Column, this=this) -2909 elif not this: -2910 return self._parse_bracket(this) -2911 this = self._parse_bracket(this) +2889 return exp.DataType( +2890 this=exp.DataType.Type[type_token.value.upper()], +2891 expressions=expressions, +2892 nested=nested, +2893 values=values, +2894 prefix=prefix, +2895 ) +2896 +2897 def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: +2898 index = self._index +2899 this = self._parse_id_var() +2900 self._match(TokenType.COLON) +2901 data_type = self._parse_types() +2902 +2903 if not data_type: +2904 self._retreat(index) +2905 return self._parse_types() +2906 return self.expression(exp.StructKwarg, this=this, expression=data_type) +2907 +2908 def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +2909 if not self._match(TokenType.AT_TIME_ZONE): +2910 return this +2911 return self.expression(exp.AtTimeZone, this=this, zone=self._parse_unary()) 2912 -2913 while self._match_set(self.COLUMN_OPERATORS): -2914 op_token = self._prev.token_type -2915 op = self.COLUMN_OPERATORS.get(op_token) -2916 -2917 if op_token == TokenType.DCOLON: -2918 field = self._parse_types() -2919 if not field: -2920 self.raise_error("Expected type") -2921 elif op: -2922 self._advance() -2923 value = self._prev.text -2924 field = ( -2925 exp.Literal.number(value) -2926 if self._prev.token_type == TokenType.NUMBER -2927 else exp.Literal.string(value) -2928 ) -2929 else: -2930 field = self._parse_star() or self._parse_function() or self._parse_id_var() -2931 -2932 if isinstance(field, exp.Func): -2933 # bigquery allows function calls like x.y.count(...) -2934 # SAFE.SUBSTR(...) -2935 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules -2936 this = self._replace_columns_with_dots(this) -2937 -2938 if op: -2939 this = op(self, this, field) -2940 elif isinstance(this, exp.Column) and not this.args.get("catalog"): -2941 this = self.expression( -2942 exp.Column, -2943 this=field, -2944 table=this.this, -2945 db=this.args.get("table"), -2946 catalog=this.args.get("db"), -2947 ) -2948 else: -2949 this = self.expression(exp.Dot, this=this, expression=field) -2950 this = self._parse_bracket(this) -2951 -2952 return this -2953 -2954 def _parse_primary(self) -> t.Optional[exp.Expression]: -2955 if self._match_set(self.PRIMARY_PARSERS): -2956 token_type = self._prev.token_type -2957 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) -2958 -2959 if token_type == TokenType.STRING: -2960 expressions = [primary] -2961 while self._match(TokenType.STRING): -2962 expressions.append(exp.Literal.string(self._prev.text)) -2963 if len(expressions) > 1: -2964 return self.expression(exp.Concat, expressions=expressions) -2965 return primary -2966 -2967 if self._match_pair(TokenType.DOT, TokenType.NUMBER): -2968 return exp.Literal.number(f"0.{self._prev.text}") -2969 -2970 if self._match(TokenType.L_PAREN): -2971 comments = self._prev_comments -2972 query = self._parse_select() -2973 -2974 if query: -2975 expressions = [query] -2976 else: -2977 expressions = self._parse_csv( -2978 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) -2979 ) -2980 -2981 this = seq_get(expressions, 0) -2982 self._parse_query_modifiers(this) -2983 -2984 if isinstance(this, exp.Subqueryable): -2985 this = self._parse_set_operations( -2986 self._parse_subquery(this=this, parse_alias=False) -2987 ) -2988 elif len(expressions) > 1: -2989 this = self.expression(exp.Tuple, expressions=expressions) -2990 else: -2991 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) +2913 def _parse_column(self) -> t.Optional[exp.Expression]: +2914 this = self._parse_field() +2915 if isinstance(this, exp.Identifier): +2916 this = self.expression(exp.Column, this=this) +2917 elif not this: +2918 return self._parse_bracket(this) +2919 this = self._parse_bracket(this) +2920 +2921 while self._match_set(self.COLUMN_OPERATORS): +2922 op_token = self._prev.token_type +2923 op = self.COLUMN_OPERATORS.get(op_token) +2924 +2925 if op_token == TokenType.DCOLON: +2926 field = self._parse_types() +2927 if not field: +2928 self.raise_error("Expected type") +2929 elif op: +2930 self._advance() +2931 value = self._prev.text +2932 field = ( +2933 exp.Literal.number(value) +2934 if self._prev.token_type == TokenType.NUMBER +2935 else exp.Literal.string(value) +2936 ) +2937 else: +2938 field = ( +2939 self._parse_star() +2940 or self._parse_function(anonymous=True) +2941 or self._parse_id_var() +2942 ) +2943 +2944 if isinstance(field, exp.Func): +2945 # bigquery allows function calls like x.y.count(...) +2946 # SAFE.SUBSTR(...) +2947 # https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-reference#function_call_rules +2948 this = self._replace_columns_with_dots(this) +2949 +2950 if op: +2951 this = op(self, this, field) +2952 elif isinstance(this, exp.Column) and not this.args.get("catalog"): +2953 this = self.expression( +2954 exp.Column, +2955 this=field, +2956 table=this.this, +2957 db=this.args.get("table"), +2958 catalog=this.args.get("db"), +2959 ) +2960 else: +2961 this = self.expression(exp.Dot, this=this, expression=field) +2962 this = self._parse_bracket(this) +2963 +2964 return this +2965 +2966 def _parse_primary(self) -> t.Optional[exp.Expression]: +2967 if self._match_set(self.PRIMARY_PARSERS): +2968 token_type = self._prev.token_type +2969 primary = self.PRIMARY_PARSERS[token_type](self, self._prev) +2970 +2971 if token_type == TokenType.STRING: +2972 expressions = [primary] +2973 while self._match(TokenType.STRING): +2974 expressions.append(exp.Literal.string(self._prev.text)) +2975 if len(expressions) > 1: +2976 return self.expression(exp.Concat, expressions=expressions) +2977 return primary +2978 +2979 if self._match_pair(TokenType.DOT, TokenType.NUMBER): +2980 return exp.Literal.number(f"0.{self._prev.text}") +2981 +2982 if self._match(TokenType.L_PAREN): +2983 comments = self._prev_comments +2984 query = self._parse_select() +2985 +2986 if query: +2987 expressions = [query] +2988 else: +2989 expressions = self._parse_csv( +2990 lambda: self._parse_alias(self._parse_conjunction(), explicit=True) +2991 ) 2992 -2993 self._match_r_paren() -2994 comments.extend(self._prev_comments) +2993 this = seq_get(expressions, 0) +2994 self._parse_query_modifiers(this) 2995 -2996 if this and comments: -2997 this.comments = comments -2998 -2999 return this -3000 -3001 return None -3002 -3003 def _parse_field( -3004 self, -3005 any_token: bool = False, -3006 tokens: t.Optional[t.Collection[TokenType]] = None, -3007 ) -> t.Optional[exp.Expression]: -3008 return ( -3009 self._parse_primary() -3010 or self._parse_function() -3011 or self._parse_id_var(any_token=any_token, tokens=tokens) -3012 ) -3013 -3014 def _parse_function( -3015 self, functions: t.Optional[t.Dict[str, t.Callable]] = None -3016 ) -> t.Optional[exp.Expression]: -3017 if not self._curr: -3018 return None -3019 -3020 token_type = self._curr.token_type -3021 -3022 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): -3023 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) -3024 -3025 if not self._next or self._next.token_type != TokenType.L_PAREN: -3026 if token_type in self.NO_PAREN_FUNCTIONS: -3027 self._advance() -3028 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) -3029 +2996 if isinstance(this, exp.Subqueryable): +2997 this = self._parse_set_operations( +2998 self._parse_subquery(this=this, parse_alias=False) +2999 ) +3000 elif len(expressions) > 1: +3001 this = self.expression(exp.Tuple, expressions=expressions) +3002 else: +3003 this = self.expression(exp.Paren, this=self._parse_set_operations(this)) +3004 +3005 self._match_r_paren() +3006 comments.extend(self._prev_comments) +3007 +3008 if this and comments: +3009 this.comments = comments +3010 +3011 return this +3012 +3013 return None +3014 +3015 def _parse_field( +3016 self, +3017 any_token: bool = False, +3018 tokens: t.Optional[t.Collection[TokenType]] = None, +3019 ) -> t.Optional[exp.Expression]: +3020 return ( +3021 self._parse_primary() +3022 or self._parse_function() +3023 or self._parse_id_var(any_token=any_token, tokens=tokens) +3024 ) +3025 +3026 def _parse_function( +3027 self, functions: t.Optional[t.Dict[str, t.Callable]] = None, anonymous: bool = False +3028 ) -> t.Optional[exp.Expression]: +3029 if not self._curr: 3030 return None 3031 -3032 if token_type not in self.FUNC_TOKENS: -3033 return None -3034 -3035 this = self._curr.text -3036 upper = this.upper() -3037 self._advance(2) -3038 -3039 parser = self.FUNCTION_PARSERS.get(upper) -3040 -3041 if parser: -3042 this = parser(self) -3043 else: -3044 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) -3045 -3046 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): -3047 this = self.expression(subquery_predicate, this=self._parse_select()) -3048 self._match_r_paren() -3049 return this +3032 token_type = self._curr.token_type +3033 +3034 if self._match_set(self.NO_PAREN_FUNCTION_PARSERS): +3035 return self.NO_PAREN_FUNCTION_PARSERS[token_type](self) +3036 +3037 if not self._next or self._next.token_type != TokenType.L_PAREN: +3038 if token_type in self.NO_PAREN_FUNCTIONS: +3039 self._advance() +3040 return self.expression(self.NO_PAREN_FUNCTIONS[token_type]) +3041 +3042 return None +3043 +3044 if token_type not in self.FUNC_TOKENS: +3045 return None +3046 +3047 this = self._curr.text +3048 upper = this.upper() +3049 self._advance(2) 3050 -3051 if functions is None: -3052 functions = self.FUNCTIONS -3053 -3054 function = functions.get(upper) -3055 args = self._parse_csv(self._parse_lambda) -3056 -3057 if function: -3058 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the -3059 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. -3060 if count_params(function) == 2: -3061 params = None -3062 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): -3063 params = self._parse_csv(self._parse_lambda) -3064 -3065 this = function(args, params) -3066 else: -3067 this = function(args) +3051 parser = self.FUNCTION_PARSERS.get(upper) +3052 +3053 if parser and not anonymous: +3054 this = parser(self) +3055 else: +3056 subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) +3057 +3058 if subquery_predicate and self._curr.token_type in (TokenType.SELECT, TokenType.WITH): +3059 this = self.expression(subquery_predicate, this=self._parse_select()) +3060 self._match_r_paren() +3061 return this +3062 +3063 if functions is None: +3064 functions = self.FUNCTIONS +3065 +3066 function = functions.get(upper) +3067 args = self._parse_csv(self._parse_lambda) 3068 -3069 self.validate_expression(this, args) -3070 else: -3071 this = self.expression(exp.Anonymous, this=this, expressions=args) -3072 -3073 self._match_r_paren(this) -3074 return self._parse_window(this) -3075 -3076 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: -3077 return self._parse_column_def(self._parse_id_var()) -3078 -3079 def _parse_user_defined_function( -3080 self, kind: t.Optional[TokenType] = None -3081 ) -> t.Optional[exp.Expression]: -3082 this = self._parse_id_var() -3083 -3084 while self._match(TokenType.DOT): -3085 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) -3086 -3087 if not self._match(TokenType.L_PAREN): -3088 return this -3089 -3090 expressions = self._parse_csv(self._parse_function_parameter) -3091 self._match_r_paren() -3092 return self.expression( -3093 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True -3094 ) +3069 if function and not anonymous: +3070 # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the +3071 # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. +3072 if count_params(function) == 2: +3073 params = None +3074 if self._match_pair(TokenType.R_PAREN, TokenType.L_PAREN): +3075 params = self._parse_csv(self._parse_lambda) +3076 +3077 this = function(args, params) +3078 else: +3079 this = function(args) +3080 +3081 self.validate_expression(this, args) +3082 else: +3083 this = self.expression(exp.Anonymous, this=this, expressions=args) +3084 +3085 self._match_r_paren(this) +3086 return self._parse_window(this) +3087 +3088 def _parse_function_parameter(self) -> t.Optional[exp.Expression]: +3089 return self._parse_column_def(self._parse_id_var()) +3090 +3091 def _parse_user_defined_function( +3092 self, kind: t.Optional[TokenType] = None +3093 ) -> t.Optional[exp.Expression]: +3094 this = self._parse_id_var() 3095 -3096 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: -3097 literal = self._parse_primary() -3098 if literal: -3099 return self.expression(exp.Introducer, this=token.text, expression=literal) -3100 -3101 return self.expression(exp.Identifier, this=token.text) -3102 -3103 def _parse_national(self, token: Token) -> exp.Expression: -3104 return self.expression(exp.National, this=exp.Literal.string(token.text)) -3105 -3106 def _parse_session_parameter(self) -> exp.Expression: -3107 kind = None -3108 this = self._parse_id_var() or self._parse_primary() -3109 -3110 if this and self._match(TokenType.DOT): -3111 kind = this.name -3112 this = self._parse_var() or self._parse_primary() -3113 -3114 return self.expression(exp.SessionParameter, this=this, kind=kind) -3115 -3116 def _parse_lambda(self) -> t.Optional[exp.Expression]: -3117 index = self._index -3118 -3119 if self._match(TokenType.L_PAREN): -3120 expressions = self._parse_csv(self._parse_id_var) +3096 while self._match(TokenType.DOT): +3097 this = self.expression(exp.Dot, this=this, expression=self._parse_id_var()) +3098 +3099 if not self._match(TokenType.L_PAREN): +3100 return this +3101 +3102 expressions = self._parse_csv(self._parse_function_parameter) +3103 self._match_r_paren() +3104 return self.expression( +3105 exp.UserDefinedFunction, this=this, expressions=expressions, wrapped=True +3106 ) +3107 +3108 def _parse_introducer(self, token: Token) -> t.Optional[exp.Expression]: +3109 literal = self._parse_primary() +3110 if literal: +3111 return self.expression(exp.Introducer, this=token.text, expression=literal) +3112 +3113 return self.expression(exp.Identifier, this=token.text) +3114 +3115 def _parse_national(self, token: Token) -> exp.Expression: +3116 return self.expression(exp.National, this=exp.Literal.string(token.text)) +3117 +3118 def _parse_session_parameter(self) -> exp.Expression: +3119 kind = None +3120 this = self._parse_id_var() or self._parse_primary() 3121 -3122 if not self._match(TokenType.R_PAREN): -3123 self._retreat(index) -3124 else: -3125 expressions = [self._parse_id_var()] -3126 -3127 if self._match_set(self.LAMBDAS): -3128 return self.LAMBDAS[self._prev.token_type](self, expressions) -3129 -3130 self._retreat(index) -3131 -3132 this: t.Optional[exp.Expression] +3122 if this and self._match(TokenType.DOT): +3123 kind = this.name +3124 this = self._parse_var() or self._parse_primary() +3125 +3126 return self.expression(exp.SessionParameter, this=this, kind=kind) +3127 +3128 def _parse_lambda(self) -> t.Optional[exp.Expression]: +3129 index = self._index +3130 +3131 if self._match(TokenType.L_PAREN): +3132 expressions = self._parse_csv(self._parse_id_var) 3133 -3134 if self._match(TokenType.DISTINCT): -3135 this = self.expression( -3136 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) -3137 ) -3138 else: -3139 this = self._parse_select_or_expression() -3140 -3141 if isinstance(this, exp.EQ): -3142 left = this.this -3143 if isinstance(left, exp.Column): -3144 left.replace(exp.Var(this=left.text("this"))) +3134 if not self._match(TokenType.R_PAREN): +3135 self._retreat(index) +3136 else: +3137 expressions = [self._parse_id_var()] +3138 +3139 if self._match_set(self.LAMBDAS): +3140 return self.LAMBDAS[self._prev.token_type](self, expressions) +3141 +3142 self._retreat(index) +3143 +3144 this: t.Optional[exp.Expression] 3145 -3146 if self._match(TokenType.IGNORE_NULLS): -3147 this = self.expression(exp.IgnoreNulls, this=this) -3148 else: -3149 self._match(TokenType.RESPECT_NULLS) -3150 -3151 return self._parse_limit(self._parse_order(this)) +3146 if self._match(TokenType.DISTINCT): +3147 this = self.expression( +3148 exp.Distinct, expressions=self._parse_csv(self._parse_conjunction) +3149 ) +3150 else: +3151 this = self._parse_select_or_expression() 3152 -3153 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: -3154 index = self._index -3155 -3156 try: -3157 if self._parse_select(nested=True): -3158 return this -3159 except Exception: -3160 pass -3161 finally: -3162 self._retreat(index) -3163 -3164 if not self._match(TokenType.L_PAREN): -3165 return this -3166 -3167 args = self._parse_csv( -3168 lambda: self._parse_constraint() -3169 or self._parse_column_def(self._parse_field(any_token=True)) -3170 ) -3171 self._match_r_paren() -3172 return self.expression(exp.Schema, this=this, expressions=args) +3153 if isinstance(this, exp.EQ): +3154 left = this.this +3155 if isinstance(left, exp.Column): +3156 left.replace(exp.Var(this=left.text("this"))) +3157 +3158 return self._parse_limit(self._parse_order(self._parse_respect_or_ignore_nulls(this))) +3159 +3160 def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: +3161 index = self._index +3162 +3163 try: +3164 if self._parse_select(nested=True): +3165 return this +3166 except Exception: +3167 pass +3168 finally: +3169 self._retreat(index) +3170 +3171 if not self._match(TokenType.L_PAREN): +3172 return this 3173 -3174 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3175 kind = self._parse_types() -3176 -3177 if self._match_text_seq("FOR", "ORDINALITY"): -3178 return self.expression(exp.ColumnDef, this=this, ordinality=True) -3179 -3180 constraints = [] -3181 while True: -3182 constraint = self._parse_column_constraint() -3183 if not constraint: -3184 break -3185 constraints.append(constraint) +3174 args = self._parse_csv( +3175 lambda: self._parse_constraint() +3176 or self._parse_column_def(self._parse_field(any_token=True)) +3177 ) +3178 self._match_r_paren() +3179 return self.expression(exp.Schema, this=this, expressions=args) +3180 +3181 def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3182 kind = self._parse_types() +3183 +3184 if self._match_text_seq("FOR", "ORDINALITY"): +3185 return self.expression(exp.ColumnDef, this=this, ordinality=True) 3186 -3187 if not kind and not constraints: -3188 return this -3189 -3190 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) -3191 -3192 def _parse_auto_increment(self) -> exp.Expression: -3193 start = None -3194 increment = None -3195 -3196 if self._match(TokenType.L_PAREN, advance=False): -3197 args = self._parse_wrapped_csv(self._parse_bitwise) -3198 start = seq_get(args, 0) -3199 increment = seq_get(args, 1) -3200 elif self._match_text_seq("START"): -3201 start = self._parse_bitwise() -3202 self._match_text_seq("INCREMENT") -3203 increment = self._parse_bitwise() -3204 -3205 if start and increment: -3206 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) -3207 -3208 return exp.AutoIncrementColumnConstraint() -3209 -3210 def _parse_compress(self) -> exp.Expression: -3211 if self._match(TokenType.L_PAREN, advance=False): -3212 return self.expression( -3213 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) -3214 ) -3215 -3216 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) -3217 -3218 def _parse_generated_as_identity(self) -> exp.Expression: -3219 if self._match(TokenType.BY_DEFAULT): -3220 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) -3221 else: -3222 self._match_text_seq("ALWAYS") -3223 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3187 constraints = [] +3188 while True: +3189 constraint = self._parse_column_constraint() +3190 if not constraint: +3191 break +3192 constraints.append(constraint) +3193 +3194 if not kind and not constraints: +3195 return this +3196 +3197 return self.expression(exp.ColumnDef, this=this, kind=kind, constraints=constraints) +3198 +3199 def _parse_auto_increment(self) -> exp.Expression: +3200 start = None +3201 increment = None +3202 +3203 if self._match(TokenType.L_PAREN, advance=False): +3204 args = self._parse_wrapped_csv(self._parse_bitwise) +3205 start = seq_get(args, 0) +3206 increment = seq_get(args, 1) +3207 elif self._match_text_seq("START"): +3208 start = self._parse_bitwise() +3209 self._match_text_seq("INCREMENT") +3210 increment = self._parse_bitwise() +3211 +3212 if start and increment: +3213 return exp.GeneratedAsIdentityColumnConstraint(start=start, increment=increment) +3214 +3215 return exp.AutoIncrementColumnConstraint() +3216 +3217 def _parse_compress(self) -> exp.Expression: +3218 if self._match(TokenType.L_PAREN, advance=False): +3219 return self.expression( +3220 exp.CompressColumnConstraint, this=self._parse_wrapped_csv(self._parse_bitwise) +3221 ) +3222 +3223 return self.expression(exp.CompressColumnConstraint, this=self._parse_bitwise()) 3224 -3225 self._match_text_seq("AS", "IDENTITY") -3226 if self._match(TokenType.L_PAREN): -3227 if self._match_text_seq("START", "WITH"): -3228 this.set("start", self._parse_bitwise()) -3229 if self._match_text_seq("INCREMENT", "BY"): -3230 this.set("increment", self._parse_bitwise()) -3231 if self._match_text_seq("MINVALUE"): -3232 this.set("minvalue", self._parse_bitwise()) -3233 if self._match_text_seq("MAXVALUE"): -3234 this.set("maxvalue", self._parse_bitwise()) -3235 -3236 if self._match_text_seq("CYCLE"): -3237 this.set("cycle", True) -3238 elif self._match_text_seq("NO", "CYCLE"): -3239 this.set("cycle", False) -3240 -3241 self._match_r_paren() +3225 def _parse_generated_as_identity(self) -> exp.Expression: +3226 if self._match(TokenType.BY_DEFAULT): +3227 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=False) +3228 else: +3229 self._match_text_seq("ALWAYS") +3230 this = self.expression(exp.GeneratedAsIdentityColumnConstraint, this=True) +3231 +3232 self._match_text_seq("AS", "IDENTITY") +3233 if self._match(TokenType.L_PAREN): +3234 if self._match_text_seq("START", "WITH"): +3235 this.set("start", self._parse_bitwise()) +3236 if self._match_text_seq("INCREMENT", "BY"): +3237 this.set("increment", self._parse_bitwise()) +3238 if self._match_text_seq("MINVALUE"): +3239 this.set("minvalue", self._parse_bitwise()) +3240 if self._match_text_seq("MAXVALUE"): +3241 this.set("maxvalue", self._parse_bitwise()) 3242 -3243 return this -3244 -3245 def _parse_inline(self) -> t.Optional[exp.Expression]: -3246 self._match_text_seq("LENGTH") -3247 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) -3248 -3249 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: -3250 if self._match_text_seq("NULL"): -3251 return self.expression(exp.NotNullColumnConstraint) -3252 if self._match_text_seq("CASESPECIFIC"): -3253 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) -3254 return None +3243 if self._match_text_seq("CYCLE"): +3244 this.set("cycle", True) +3245 elif self._match_text_seq("NO", "CYCLE"): +3246 this.set("cycle", False) +3247 +3248 self._match_r_paren() +3249 +3250 return this +3251 +3252 def _parse_inline(self) -> t.Optional[exp.Expression]: +3253 self._match_text_seq("LENGTH") +3254 return self.expression(exp.InlineLengthColumnConstraint, this=self._parse_bitwise()) 3255 -3256 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: -3257 if self._match(TokenType.CONSTRAINT): -3258 this = self._parse_id_var() -3259 else: -3260 this = None -3261 -3262 if self._match_texts(self.CONSTRAINT_PARSERS): -3263 return self.expression( -3264 exp.ColumnConstraint, -3265 this=this, -3266 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), -3267 ) +3256 def _parse_not_constraint(self) -> t.Optional[exp.Expression]: +3257 if self._match_text_seq("NULL"): +3258 return self.expression(exp.NotNullColumnConstraint) +3259 if self._match_text_seq("CASESPECIFIC"): +3260 return self.expression(exp.CaseSpecificColumnConstraint, not_=True) +3261 return None +3262 +3263 def _parse_column_constraint(self) -> t.Optional[exp.Expression]: +3264 if self._match(TokenType.CONSTRAINT): +3265 this = self._parse_id_var() +3266 else: +3267 this = None 3268 -3269 return this -3270 -3271 def _parse_constraint(self) -> t.Optional[exp.Expression]: -3272 if not self._match(TokenType.CONSTRAINT): -3273 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) -3274 -3275 this = self._parse_id_var() -3276 expressions = [] +3269 if self._match_texts(self.CONSTRAINT_PARSERS): +3270 return self.expression( +3271 exp.ColumnConstraint, +3272 this=this, +3273 kind=self.CONSTRAINT_PARSERS[self._prev.text.upper()](self), +3274 ) +3275 +3276 return this 3277 -3278 while True: -3279 constraint = self._parse_unnamed_constraint() or self._parse_function() -3280 if not constraint: -3281 break -3282 expressions.append(constraint) -3283 -3284 return self.expression(exp.Constraint, this=this, expressions=expressions) -3285 -3286 def _parse_unnamed_constraint( -3287 self, constraints: t.Optional[t.Collection[str]] = None -3288 ) -> t.Optional[exp.Expression]: -3289 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): -3290 return None -3291 -3292 constraint = self._prev.text.upper() -3293 if constraint not in self.CONSTRAINT_PARSERS: -3294 self.raise_error(f"No parser found for schema constraint {constraint}.") -3295 -3296 return self.CONSTRAINT_PARSERS[constraint](self) -3297 -3298 def _parse_unique(self) -> exp.Expression: -3299 if not self._match(TokenType.L_PAREN, advance=False): -3300 return self.expression(exp.UniqueColumnConstraint) -3301 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3278 def _parse_constraint(self) -> t.Optional[exp.Expression]: +3279 if not self._match(TokenType.CONSTRAINT): +3280 return self._parse_unnamed_constraint(constraints=self.SCHEMA_UNNAMED_CONSTRAINTS) +3281 +3282 this = self._parse_id_var() +3283 expressions = [] +3284 +3285 while True: +3286 constraint = self._parse_unnamed_constraint() or self._parse_function() +3287 if not constraint: +3288 break +3289 expressions.append(constraint) +3290 +3291 return self.expression(exp.Constraint, this=this, expressions=expressions) +3292 +3293 def _parse_unnamed_constraint( +3294 self, constraints: t.Optional[t.Collection[str]] = None +3295 ) -> t.Optional[exp.Expression]: +3296 if not self._match_texts(constraints or self.CONSTRAINT_PARSERS): +3297 return None +3298 +3299 constraint = self._prev.text.upper() +3300 if constraint not in self.CONSTRAINT_PARSERS: +3301 self.raise_error(f"No parser found for schema constraint {constraint}.") 3302 -3303 def _parse_key_constraint_options(self) -> t.List[str]: -3304 options = [] -3305 while True: -3306 if not self._curr: -3307 break -3308 -3309 if self._match(TokenType.ON): -3310 action = None -3311 on = self._advance_any() and self._prev.text -3312 -3313 if self._match(TokenType.NO_ACTION): -3314 action = "NO ACTION" -3315 elif self._match(TokenType.CASCADE): -3316 action = "CASCADE" -3317 elif self._match_pair(TokenType.SET, TokenType.NULL): -3318 action = "SET NULL" -3319 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): -3320 action = "SET DEFAULT" -3321 else: -3322 self.raise_error("Invalid key constraint") -3323 -3324 options.append(f"ON {on} {action}") -3325 elif self._match_text_seq("NOT", "ENFORCED"): -3326 options.append("NOT ENFORCED") -3327 elif self._match_text_seq("DEFERRABLE"): -3328 options.append("DEFERRABLE") -3329 elif self._match_text_seq("INITIALLY", "DEFERRED"): -3330 options.append("INITIALLY DEFERRED") -3331 elif self._match_text_seq("NORELY"): -3332 options.append("NORELY") -3333 elif self._match_text_seq("MATCH", "FULL"): -3334 options.append("MATCH FULL") -3335 else: -3336 break -3337 -3338 return options -3339 -3340 def _parse_references(self, match=True) -> t.Optional[exp.Expression]: -3341 if match and not self._match(TokenType.REFERENCES): -3342 return None -3343 -3344 expressions = None -3345 this = self._parse_id_var() +3303 return self.CONSTRAINT_PARSERS[constraint](self) +3304 +3305 def _parse_unique(self) -> exp.Expression: +3306 if not self._match(TokenType.L_PAREN, advance=False): +3307 return self.expression(exp.UniqueColumnConstraint) +3308 return self.expression(exp.Unique, expressions=self._parse_wrapped_id_vars()) +3309 +3310 def _parse_key_constraint_options(self) -> t.List[str]: +3311 options = [] +3312 while True: +3313 if not self._curr: +3314 break +3315 +3316 if self._match(TokenType.ON): +3317 action = None +3318 on = self._advance_any() and self._prev.text +3319 +3320 if self._match(TokenType.NO_ACTION): +3321 action = "NO ACTION" +3322 elif self._match(TokenType.CASCADE): +3323 action = "CASCADE" +3324 elif self._match_pair(TokenType.SET, TokenType.NULL): +3325 action = "SET NULL" +3326 elif self._match_pair(TokenType.SET, TokenType.DEFAULT): +3327 action = "SET DEFAULT" +3328 else: +3329 self.raise_error("Invalid key constraint") +3330 +3331 options.append(f"ON {on} {action}") +3332 elif self._match_text_seq("NOT", "ENFORCED"): +3333 options.append("NOT ENFORCED") +3334 elif self._match_text_seq("DEFERRABLE"): +3335 options.append("DEFERRABLE") +3336 elif self._match_text_seq("INITIALLY", "DEFERRED"): +3337 options.append("INITIALLY DEFERRED") +3338 elif self._match_text_seq("NORELY"): +3339 options.append("NORELY") +3340 elif self._match_text_seq("MATCH", "FULL"): +3341 options.append("MATCH FULL") +3342 else: +3343 break +3344 +3345 return options 3346 -3347 if self._match(TokenType.L_PAREN, advance=False): -3348 expressions = self._parse_wrapped_id_vars() -3349 -3350 options = self._parse_key_constraint_options() -3351 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) -3352 -3353 def _parse_foreign_key(self) -> exp.Expression: -3354 expressions = self._parse_wrapped_id_vars() -3355 reference = self._parse_references() -3356 options = {} -3357 -3358 while self._match(TokenType.ON): -3359 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): -3360 self.raise_error("Expected DELETE or UPDATE") -3361 -3362 kind = self._prev.text.lower() -3363 -3364 if self._match(TokenType.NO_ACTION): -3365 action = "NO ACTION" -3366 elif self._match(TokenType.SET): -3367 self._match_set((TokenType.NULL, TokenType.DEFAULT)) -3368 action = "SET " + self._prev.text.upper() -3369 else: -3370 self._advance() -3371 action = self._prev.text.upper() -3372 -3373 options[kind] = action -3374 -3375 return self.expression( -3376 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore -3377 ) -3378 -3379 def _parse_primary_key(self) -> exp.Expression: -3380 desc = ( -3381 self._match_set((TokenType.ASC, TokenType.DESC)) -3382 and self._prev.token_type == TokenType.DESC -3383 ) -3384 -3385 if not self._match(TokenType.L_PAREN, advance=False): -3386 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) -3387 -3388 expressions = self._parse_wrapped_id_vars() -3389 options = self._parse_key_constraint_options() -3390 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) +3347 def _parse_references(self, match=True) -> t.Optional[exp.Expression]: +3348 if match and not self._match(TokenType.REFERENCES): +3349 return None +3350 +3351 expressions = None +3352 this = self._parse_id_var() +3353 +3354 if self._match(TokenType.L_PAREN, advance=False): +3355 expressions = self._parse_wrapped_id_vars() +3356 +3357 options = self._parse_key_constraint_options() +3358 return self.expression(exp.Reference, this=this, expressions=expressions, options=options) +3359 +3360 def _parse_foreign_key(self) -> exp.Expression: +3361 expressions = self._parse_wrapped_id_vars() +3362 reference = self._parse_references() +3363 options = {} +3364 +3365 while self._match(TokenType.ON): +3366 if not self._match_set((TokenType.DELETE, TokenType.UPDATE)): +3367 self.raise_error("Expected DELETE or UPDATE") +3368 +3369 kind = self._prev.text.lower() +3370 +3371 if self._match(TokenType.NO_ACTION): +3372 action = "NO ACTION" +3373 elif self._match(TokenType.SET): +3374 self._match_set((TokenType.NULL, TokenType.DEFAULT)) +3375 action = "SET " + self._prev.text.upper() +3376 else: +3377 self._advance() +3378 action = self._prev.text.upper() +3379 +3380 options[kind] = action +3381 +3382 return self.expression( +3383 exp.ForeignKey, expressions=expressions, reference=reference, **options # type: ignore +3384 ) +3385 +3386 def _parse_primary_key(self) -> exp.Expression: +3387 desc = ( +3388 self._match_set((TokenType.ASC, TokenType.DESC)) +3389 and self._prev.token_type == TokenType.DESC +3390 ) 3391 -3392 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3393 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): -3394 return this -3395 -3396 bracket_kind = self._prev.token_type -3397 expressions: t.List[t.Optional[exp.Expression]] +3392 if not self._match(TokenType.L_PAREN, advance=False): +3393 return self.expression(exp.PrimaryKeyColumnConstraint, desc=desc) +3394 +3395 expressions = self._parse_wrapped_id_vars() +3396 options = self._parse_key_constraint_options() +3397 return self.expression(exp.PrimaryKey, expressions=expressions, options=options) 3398 -3399 if self._match(TokenType.COLON): -3400 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] -3401 else: -3402 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) -3403 -3404 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs -3405 if bracket_kind == TokenType.L_BRACE: -3406 this = self.expression(exp.Struct, expressions=expressions) -3407 elif not this or this.name.upper() == "ARRAY": -3408 this = self.expression(exp.Array, expressions=expressions) -3409 else: -3410 expressions = apply_index_offset(this, expressions, -self.index_offset) -3411 this = self.expression(exp.Bracket, this=this, expressions=expressions) -3412 -3413 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: -3414 self.raise_error("Expected ]") -3415 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: -3416 self.raise_error("Expected }") -3417 -3418 this.comments = self._prev_comments -3419 return self._parse_bracket(this) -3420 -3421 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: -3422 if self._match(TokenType.COLON): -3423 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) -3424 return this -3425 -3426 def _parse_case(self) -> t.Optional[exp.Expression]: -3427 ifs = [] -3428 default = None -3429 -3430 expression = self._parse_conjunction() -3431 -3432 while self._match(TokenType.WHEN): -3433 this = self._parse_conjunction() -3434 self._match(TokenType.THEN) -3435 then = self._parse_conjunction() -3436 ifs.append(self.expression(exp.If, this=this, true=then)) -3437 -3438 if self._match(TokenType.ELSE): -3439 default = self._parse_conjunction() -3440 -3441 if not self._match(TokenType.END): -3442 self.raise_error("Expected END after CASE", self._prev) -3443 -3444 return self._parse_window( -3445 self.expression(exp.Case, this=expression, ifs=ifs, default=default) -3446 ) +3399 def _parse_bracket(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3400 if not self._match_set((TokenType.L_BRACKET, TokenType.L_BRACE)): +3401 return this +3402 +3403 bracket_kind = self._prev.token_type +3404 expressions: t.List[t.Optional[exp.Expression]] +3405 +3406 if self._match(TokenType.COLON): +3407 expressions = [self.expression(exp.Slice, expression=self._parse_conjunction())] +3408 else: +3409 expressions = self._parse_csv(lambda: self._parse_slice(self._parse_conjunction())) +3410 +3411 # https://duckdb.org/docs/sql/data_types/struct.html#creating-structs +3412 if bracket_kind == TokenType.L_BRACE: +3413 this = self.expression(exp.Struct, expressions=expressions) +3414 elif not this or this.name.upper() == "ARRAY": +3415 this = self.expression(exp.Array, expressions=expressions) +3416 else: +3417 expressions = apply_index_offset(this, expressions, -self.index_offset) +3418 this = self.expression(exp.Bracket, this=this, expressions=expressions) +3419 +3420 if not self._match(TokenType.R_BRACKET) and bracket_kind == TokenType.L_BRACKET: +3421 self.raise_error("Expected ]") +3422 elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: +3423 self.raise_error("Expected }") +3424 +3425 this.comments = self._prev_comments +3426 return self._parse_bracket(this) +3427 +3428 def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: +3429 if self._match(TokenType.COLON): +3430 return self.expression(exp.Slice, this=this, expression=self._parse_conjunction()) +3431 return this +3432 +3433 def _parse_case(self) -> t.Optional[exp.Expression]: +3434 ifs = [] +3435 default = None +3436 +3437 expression = self._parse_conjunction() +3438 +3439 while self._match(TokenType.WHEN): +3440 this = self._parse_conjunction() +3441 self._match(TokenType.THEN) +3442 then = self._parse_conjunction() +3443 ifs.append(self.expression(exp.If, this=this, true=then)) +3444 +3445 if self._match(TokenType.ELSE): +3446 default = self._parse_conjunction() 3447 -3448 def _parse_if(self) -> t.Optional[exp.Expression]: -3449 if self._match(TokenType.L_PAREN): -3450 args = self._parse_csv(self._parse_conjunction) -3451 this = exp.If.from_arg_list(args) -3452 self.validate_expression(this, args) -3453 self._match_r_paren() -3454 else: -3455 condition = self._parse_conjunction() -3456 self._match(TokenType.THEN) -3457 true = self._parse_conjunction() -3458 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None -3459 self._match(TokenType.END) -3460 this = self.expression(exp.If, this=condition, true=true, false=false) -3461 -3462 return self._parse_window(this) -3463 -3464 def _parse_extract(self) -> exp.Expression: -3465 this = self._parse_function() or self._parse_var() or self._parse_type() -3466 -3467 if self._match(TokenType.FROM): -3468 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) -3469 -3470 if not self._match(TokenType.COMMA): -3471 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) -3472 -3473 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3448 if not self._match(TokenType.END): +3449 self.raise_error("Expected END after CASE", self._prev) +3450 +3451 return self._parse_window( +3452 self.expression(exp.Case, this=expression, ifs=ifs, default=default) +3453 ) +3454 +3455 def _parse_if(self) -> t.Optional[exp.Expression]: +3456 if self._match(TokenType.L_PAREN): +3457 args = self._parse_csv(self._parse_conjunction) +3458 this = exp.If.from_arg_list(args) +3459 self.validate_expression(this, args) +3460 self._match_r_paren() +3461 else: +3462 index = self._index - 1 +3463 condition = self._parse_conjunction() +3464 +3465 if not condition: +3466 self._retreat(index) +3467 return None +3468 +3469 self._match(TokenType.THEN) +3470 true = self._parse_conjunction() +3471 false = self._parse_conjunction() if self._match(TokenType.ELSE) else None +3472 self._match(TokenType.END) +3473 this = self.expression(exp.If, this=condition, true=true, false=false) 3474 -3475 def _parse_cast(self, strict: bool) -> exp.Expression: -3476 this = self._parse_conjunction() -3477 -3478 if not self._match(TokenType.ALIAS): -3479 self.raise_error("Expected AS after CAST") -3480 -3481 to = self._parse_types() +3475 return self._parse_window(this) +3476 +3477 def _parse_extract(self) -> exp.Expression: +3478 this = self._parse_function() or self._parse_var() or self._parse_type() +3479 +3480 if self._match(TokenType.FROM): +3481 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) 3482 -3483 if not to: -3484 self.raise_error("Expected TYPE after CAST") -3485 elif to.this == exp.DataType.Type.CHAR: -3486 if self._match(TokenType.CHARACTER_SET): -3487 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) -3488 -3489 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3483 if not self._match(TokenType.COMMA): +3484 self.raise_error("Expected FROM or comma after EXTRACT", self._prev) +3485 +3486 return self.expression(exp.Extract, this=this, expression=self._parse_bitwise()) +3487 +3488 def _parse_cast(self, strict: bool) -> exp.Expression: +3489 this = self._parse_conjunction() 3490 -3491 def _parse_string_agg(self) -> exp.Expression: -3492 expression: t.Optional[exp.Expression] +3491 if not self._match(TokenType.ALIAS): +3492 self.raise_error("Expected AS after CAST") 3493 -3494 if self._match(TokenType.DISTINCT): -3495 args = self._parse_csv(self._parse_conjunction) -3496 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) -3497 else: -3498 args = self._parse_csv(self._parse_conjunction) -3499 expression = seq_get(args, 0) -3500 -3501 index = self._index -3502 if not self._match(TokenType.R_PAREN): -3503 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) -3504 order = self._parse_order(this=expression) -3505 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3494 to = self._parse_types() +3495 +3496 if not to: +3497 self.raise_error("Expected TYPE after CAST") +3498 elif to.this == exp.DataType.Type.CHAR: +3499 if self._match(TokenType.CHARACTER_SET): +3500 to = self.expression(exp.CharacterSet, this=self._parse_var_or_string()) +3501 +3502 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3503 +3504 def _parse_string_agg(self) -> exp.Expression: +3505 expression: t.Optional[exp.Expression] 3506 -3507 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). -3508 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that -3509 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. -3510 if not self._match(TokenType.WITHIN_GROUP): -3511 self._retreat(index) -3512 this = exp.GroupConcat.from_arg_list(args) -3513 self.validate_expression(this, args) -3514 return this -3515 -3516 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) -3517 order = self._parse_order(this=expression) -3518 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3507 if self._match(TokenType.DISTINCT): +3508 args = self._parse_csv(self._parse_conjunction) +3509 expression = self.expression(exp.Distinct, expressions=[seq_get(args, 0)]) +3510 else: +3511 args = self._parse_csv(self._parse_conjunction) +3512 expression = seq_get(args, 0) +3513 +3514 index = self._index +3515 if not self._match(TokenType.R_PAREN): +3516 # postgres: STRING_AGG([DISTINCT] expression, separator [ORDER BY expression1 {ASC | DESC} [, ...]]) +3517 order = self._parse_order(this=expression) +3518 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) 3519 -3520 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: -3521 to: t.Optional[exp.Expression] -3522 this = self._parse_bitwise() -3523 -3524 if self._match(TokenType.USING): -3525 to = self.expression(exp.CharacterSet, this=self._parse_var()) -3526 elif self._match(TokenType.COMMA): -3527 to = self._parse_bitwise() -3528 else: -3529 to = None -3530 -3531 # Swap the argument order if needed to produce the correct AST -3532 if self.CONVERT_TYPE_FIRST: -3533 this, to = to, this -3534 -3535 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) +3520 # Checks if we can parse an order clause: WITHIN GROUP (ORDER BY <order_by_expression_list> [ASC | DESC]). +3521 # This is done "manually", instead of letting _parse_window parse it into an exp.WithinGroup node, so that +3522 # the STRING_AGG call is parsed like in MySQL / SQLite and can thus be transpiled more easily to them. +3523 if not self._match(TokenType.WITHIN_GROUP): +3524 self._retreat(index) +3525 this = exp.GroupConcat.from_arg_list(args) +3526 self.validate_expression(this, args) +3527 return this +3528 +3529 self._match_l_paren() # The corresponding match_r_paren will be called in parse_function (caller) +3530 order = self._parse_order(this=expression) +3531 return self.expression(exp.GroupConcat, this=order, separator=seq_get(args, 1)) +3532 +3533 def _parse_convert(self, strict: bool) -> t.Optional[exp.Expression]: +3534 to: t.Optional[exp.Expression] +3535 this = self._parse_bitwise() 3536 -3537 def _parse_decode(self) -> t.Optional[exp.Expression]: -3538 """ -3539 There are generally two variants of the DECODE function: -3540 -3541 - DECODE(bin, charset) -3542 - DECODE(expression, search, result [, search, result] ... [, default]) +3537 if self._match(TokenType.USING): +3538 to = self.expression(exp.CharacterSet, this=self._parse_var()) +3539 elif self._match(TokenType.COMMA): +3540 to = self._parse_bitwise() +3541 else: +3542 to = None 3543 -3544 The second variant will always be parsed into a CASE expression. Note that NULL -3545 needs special treatment, since we need to explicitly check for it with `IS NULL`, -3546 instead of relying on pattern matching. -3547 """ -3548 args = self._parse_csv(self._parse_conjunction) +3544 # Swap the argument order if needed to produce the correct AST +3545 if self.CONVERT_TYPE_FIRST: +3546 this, to = to, this +3547 +3548 return self.expression(exp.Cast if strict else exp.TryCast, this=this, to=to) 3549 -3550 if len(args) < 3: -3551 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) -3552 -3553 expression, *expressions = args -3554 if not expression: -3555 return None +3550 def _parse_decode(self) -> t.Optional[exp.Expression]: +3551 """ +3552 There are generally two variants of the DECODE function: +3553 +3554 - DECODE(bin, charset) +3555 - DECODE(expression, search, result [, search, result] ... [, default]) 3556 -3557 ifs = [] -3558 for search, result in zip(expressions[::2], expressions[1::2]): -3559 if not search or not result: -3560 return None -3561 -3562 if isinstance(search, exp.Literal): -3563 ifs.append( -3564 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) -3565 ) -3566 elif isinstance(search, exp.Null): -3567 ifs.append( -3568 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) -3569 ) -3570 else: -3571 cond = exp.or_( -3572 exp.EQ(this=expression.copy(), expression=search), -3573 exp.and_( -3574 exp.Is(this=expression.copy(), expression=exp.Null()), -3575 exp.Is(this=search.copy(), expression=exp.Null()), -3576 ), -3577 ) -3578 ifs.append(exp.If(this=cond, true=result)) -3579 -3580 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) -3581 -3582 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: -3583 self._match_text_seq("KEY") -3584 key = self._parse_field() -3585 self._match(TokenType.COLON) -3586 self._match_text_seq("VALUE") -3587 value = self._parse_field() -3588 if not key and not value: -3589 return None -3590 return self.expression(exp.JSONKeyValue, this=key, expression=value) -3591 -3592 def _parse_json_object(self) -> exp.Expression: -3593 expressions = self._parse_csv(self._parse_json_key_value) +3557 The second variant will always be parsed into a CASE expression. Note that NULL +3558 needs special treatment, since we need to explicitly check for it with `IS NULL`, +3559 instead of relying on pattern matching. +3560 """ +3561 args = self._parse_csv(self._parse_conjunction) +3562 +3563 if len(args) < 3: +3564 return self.expression(exp.Decode, this=seq_get(args, 0), charset=seq_get(args, 1)) +3565 +3566 expression, *expressions = args +3567 if not expression: +3568 return None +3569 +3570 ifs = [] +3571 for search, result in zip(expressions[::2], expressions[1::2]): +3572 if not search or not result: +3573 return None +3574 +3575 if isinstance(search, exp.Literal): +3576 ifs.append( +3577 exp.If(this=exp.EQ(this=expression.copy(), expression=search), true=result) +3578 ) +3579 elif isinstance(search, exp.Null): +3580 ifs.append( +3581 exp.If(this=exp.Is(this=expression.copy(), expression=exp.Null()), true=result) +3582 ) +3583 else: +3584 cond = exp.or_( +3585 exp.EQ(this=expression.copy(), expression=search), +3586 exp.and_( +3587 exp.Is(this=expression.copy(), expression=exp.Null()), +3588 exp.Is(this=search.copy(), expression=exp.Null()), +3589 copy=False, +3590 ), +3591 copy=False, +3592 ) +3593 ifs.append(exp.If(this=cond, true=result)) 3594 -3595 null_handling = None -3596 if self._match_text_seq("NULL", "ON", "NULL"): -3597 null_handling = "NULL ON NULL" -3598 elif self._match_text_seq("ABSENT", "ON", "NULL"): -3599 null_handling = "ABSENT ON NULL" -3600 -3601 unique_keys = None -3602 if self._match_text_seq("WITH", "UNIQUE"): -3603 unique_keys = True -3604 elif self._match_text_seq("WITHOUT", "UNIQUE"): -3605 unique_keys = False +3595 return exp.Case(ifs=ifs, default=expressions[-1] if len(expressions) % 2 == 1 else None) +3596 +3597 def _parse_json_key_value(self) -> t.Optional[exp.Expression]: +3598 self._match_text_seq("KEY") +3599 key = self._parse_field() +3600 self._match(TokenType.COLON) +3601 self._match_text_seq("VALUE") +3602 value = self._parse_field() +3603 if not key and not value: +3604 return None +3605 return self.expression(exp.JSONKeyValue, this=key, expression=value) 3606 -3607 self._match_text_seq("KEYS") -3608 -3609 return_type = self._match_text_seq("RETURNING") and self._parse_type() -3610 format_json = self._match_text_seq("FORMAT", "JSON") -3611 encoding = self._match_text_seq("ENCODING") and self._parse_var() -3612 -3613 return self.expression( -3614 exp.JSONObject, -3615 expressions=expressions, -3616 null_handling=null_handling, -3617 unique_keys=unique_keys, -3618 return_type=return_type, -3619 format_json=format_json, -3620 encoding=encoding, -3621 ) -3622 -3623 def _parse_logarithm(self) -> exp.Expression: -3624 # Default argument order is base, expression -3625 args = self._parse_csv(self._parse_range) -3626 -3627 if len(args) > 1: -3628 if not self.LOG_BASE_FIRST: -3629 args.reverse() -3630 return exp.Log.from_arg_list(args) -3631 -3632 return self.expression( -3633 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) -3634 ) -3635 -3636 def _parse_match_against(self) -> exp.Expression: -3637 expressions = self._parse_csv(self._parse_column) -3638 -3639 self._match_text_seq(")", "AGAINST", "(") -3640 -3641 this = self._parse_string() -3642 -3643 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): -3644 modifier = "IN NATURAL LANGUAGE MODE" -3645 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): -3646 modifier = f"{modifier} WITH QUERY EXPANSION" -3647 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): -3648 modifier = "IN BOOLEAN MODE" -3649 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): -3650 modifier = "WITH QUERY EXPANSION" -3651 else: -3652 modifier = None +3607 def _parse_json_object(self) -> exp.Expression: +3608 expressions = self._parse_csv(self._parse_json_key_value) +3609 +3610 null_handling = None +3611 if self._match_text_seq("NULL", "ON", "NULL"): +3612 null_handling = "NULL ON NULL" +3613 elif self._match_text_seq("ABSENT", "ON", "NULL"): +3614 null_handling = "ABSENT ON NULL" +3615 +3616 unique_keys = None +3617 if self._match_text_seq("WITH", "UNIQUE"): +3618 unique_keys = True +3619 elif self._match_text_seq("WITHOUT", "UNIQUE"): +3620 unique_keys = False +3621 +3622 self._match_text_seq("KEYS") +3623 +3624 return_type = self._match_text_seq("RETURNING") and self._parse_type() +3625 format_json = self._match_text_seq("FORMAT", "JSON") +3626 encoding = self._match_text_seq("ENCODING") and self._parse_var() +3627 +3628 return self.expression( +3629 exp.JSONObject, +3630 expressions=expressions, +3631 null_handling=null_handling, +3632 unique_keys=unique_keys, +3633 return_type=return_type, +3634 format_json=format_json, +3635 encoding=encoding, +3636 ) +3637 +3638 def _parse_logarithm(self) -> exp.Expression: +3639 # Default argument order is base, expression +3640 args = self._parse_csv(self._parse_range) +3641 +3642 if len(args) > 1: +3643 if not self.LOG_BASE_FIRST: +3644 args.reverse() +3645 return exp.Log.from_arg_list(args) +3646 +3647 return self.expression( +3648 exp.Ln if self.LOG_DEFAULTS_TO_LN else exp.Log, this=seq_get(args, 0) +3649 ) +3650 +3651 def _parse_match_against(self) -> exp.Expression: +3652 expressions = self._parse_csv(self._parse_column) 3653 -3654 return self.expression( -3655 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier -3656 ) +3654 self._match_text_seq(")", "AGAINST", "(") +3655 +3656 this = self._parse_string() 3657 -3658 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: -3659 args = self._parse_csv(self._parse_bitwise) -3660 -3661 if self._match(TokenType.IN): -3662 return self.expression( -3663 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) -3664 ) -3665 -3666 if haystack_first: -3667 haystack = seq_get(args, 0) -3668 needle = seq_get(args, 1) -3669 else: -3670 needle = seq_get(args, 0) -3671 haystack = seq_get(args, 1) +3658 if self._match_text_seq("IN", "NATURAL", "LANGUAGE", "MODE"): +3659 modifier = "IN NATURAL LANGUAGE MODE" +3660 if self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3661 modifier = f"{modifier} WITH QUERY EXPANSION" +3662 elif self._match_text_seq("IN", "BOOLEAN", "MODE"): +3663 modifier = "IN BOOLEAN MODE" +3664 elif self._match_text_seq("WITH", "QUERY", "EXPANSION"): +3665 modifier = "WITH QUERY EXPANSION" +3666 else: +3667 modifier = None +3668 +3669 return self.expression( +3670 exp.MatchAgainst, this=this, expressions=expressions, modifier=modifier +3671 ) 3672 -3673 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) -3674 -3675 self.validate_expression(this, args) -3676 -3677 return this -3678 -3679 def _parse_join_hint(self, func_name: str) -> exp.Expression: -3680 args = self._parse_csv(self._parse_table) -3681 return exp.JoinHint(this=func_name.upper(), expressions=args) -3682 -3683 def _parse_substring(self) -> exp.Expression: -3684 # Postgres supports the form: substring(string [from int] [for int]) -3685 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 -3686 -3687 args = self._parse_csv(self._parse_bitwise) -3688 -3689 if self._match(TokenType.FROM): -3690 args.append(self._parse_bitwise()) -3691 if self._match(TokenType.FOR): -3692 args.append(self._parse_bitwise()) +3673 def _parse_position(self, haystack_first: bool = False) -> exp.Expression: +3674 args = self._parse_csv(self._parse_bitwise) +3675 +3676 if self._match(TokenType.IN): +3677 return self.expression( +3678 exp.StrPosition, this=self._parse_bitwise(), substr=seq_get(args, 0) +3679 ) +3680 +3681 if haystack_first: +3682 haystack = seq_get(args, 0) +3683 needle = seq_get(args, 1) +3684 else: +3685 needle = seq_get(args, 0) +3686 haystack = seq_get(args, 1) +3687 +3688 this = exp.StrPosition(this=haystack, substr=needle, position=seq_get(args, 2)) +3689 +3690 self.validate_expression(this, args) +3691 +3692 return this 3693 -3694 this = exp.Substring.from_arg_list(args) -3695 self.validate_expression(this, args) -3696 -3697 return this -3698 -3699 def _parse_trim(self) -> exp.Expression: -3700 # https://www.w3resource.com/sql/character-functions/trim.php -3701 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html -3702 -3703 position = None -3704 collation = None -3705 -3706 if self._match_set(self.TRIM_TYPES): -3707 position = self._prev.text.upper() +3694 def _parse_join_hint(self, func_name: str) -> exp.Expression: +3695 args = self._parse_csv(self._parse_table) +3696 return exp.JoinHint(this=func_name.upper(), expressions=args) +3697 +3698 def _parse_substring(self) -> exp.Expression: +3699 # Postgres supports the form: substring(string [from int] [for int]) +3700 # https://www.postgresql.org/docs/9.1/functions-string.html @ Table 9-6 +3701 +3702 args = self._parse_csv(self._parse_bitwise) +3703 +3704 if self._match(TokenType.FROM): +3705 args.append(self._parse_bitwise()) +3706 if self._match(TokenType.FOR): +3707 args.append(self._parse_bitwise()) 3708 -3709 expression = self._parse_term() -3710 if self._match_set((TokenType.FROM, TokenType.COMMA)): -3711 this = self._parse_term() -3712 else: -3713 this = expression -3714 expression = None -3715 -3716 if self._match(TokenType.COLLATE): -3717 collation = self._parse_term() -3718 -3719 return self.expression( -3720 exp.Trim, -3721 this=this, -3722 position=position, -3723 expression=expression, -3724 collation=collation, -3725 ) -3726 -3727 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3728 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) -3729 -3730 def _parse_named_window(self) -> t.Optional[exp.Expression]: -3731 return self._parse_window(self._parse_id_var(), alias=True) -3732 -3733 def _parse_window( -3734 self, this: t.Optional[exp.Expression], alias: bool = False -3735 ) -> t.Optional[exp.Expression]: -3736 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): -3737 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) -3738 self._match_r_paren() -3739 -3740 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. -3741 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 -3742 if self._match(TokenType.WITHIN_GROUP): -3743 order = self._parse_wrapped(self._parse_order) -3744 this = self.expression(exp.WithinGroup, this=this, expression=order) -3745 -3746 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER -3747 # Some dialects choose to implement and some do not. -3748 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html -3749 -3750 # There is some code above in _parse_lambda that handles -3751 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... -3752 -3753 # The below changes handle -3754 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... -3755 -3756 # Oracle allows both formats -3757 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) -3758 # and Snowflake chose to do the same for familiarity -3759 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes -3760 if self._match(TokenType.IGNORE_NULLS): -3761 this = self.expression(exp.IgnoreNulls, this=this) -3762 elif self._match(TokenType.RESPECT_NULLS): -3763 this = self.expression(exp.RespectNulls, this=this) -3764 -3765 # bigquery select from window x AS (partition by ...) -3766 if alias: -3767 self._match(TokenType.ALIAS) -3768 elif not self._match(TokenType.OVER): -3769 return this -3770 -3771 if not self._match(TokenType.L_PAREN): -3772 return self.expression(exp.Window, this=this, alias=self._parse_id_var(False)) +3709 this = exp.Substring.from_arg_list(args) +3710 self.validate_expression(this, args) +3711 +3712 return this +3713 +3714 def _parse_trim(self) -> exp.Expression: +3715 # https://www.w3resource.com/sql/character-functions/trim.php +3716 # https://docs.oracle.com/javadb/10.8.3.0/ref/rreftrimfunc.html +3717 +3718 position = None +3719 collation = None +3720 +3721 if self._match_set(self.TRIM_TYPES): +3722 position = self._prev.text.upper() +3723 +3724 expression = self._parse_bitwise() +3725 if self._match_set((TokenType.FROM, TokenType.COMMA)): +3726 this = self._parse_bitwise() +3727 else: +3728 this = expression +3729 expression = None +3730 +3731 if self._match(TokenType.COLLATE): +3732 collation = self._parse_bitwise() +3733 +3734 return self.expression( +3735 exp.Trim, +3736 this=this, +3737 position=position, +3738 expression=expression, +3739 collation=collation, +3740 ) +3741 +3742 def _parse_window_clause(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3743 return self._match(TokenType.WINDOW) and self._parse_csv(self._parse_named_window) +3744 +3745 def _parse_named_window(self) -> t.Optional[exp.Expression]: +3746 return self._parse_window(self._parse_id_var(), alias=True) +3747 +3748 def _parse_respect_or_ignore_nulls( +3749 self, this: t.Optional[exp.Expression] +3750 ) -> t.Optional[exp.Expression]: +3751 if self._match(TokenType.IGNORE_NULLS): +3752 return self.expression(exp.IgnoreNulls, this=this) +3753 if self._match(TokenType.RESPECT_NULLS): +3754 return self.expression(exp.RespectNulls, this=this) +3755 return this +3756 +3757 def _parse_window( +3758 self, this: t.Optional[exp.Expression], alias: bool = False +3759 ) -> t.Optional[exp.Expression]: +3760 if self._match_pair(TokenType.FILTER, TokenType.L_PAREN): +3761 this = self.expression(exp.Filter, this=this, expression=self._parse_where()) +3762 self._match_r_paren() +3763 +3764 # T-SQL allows the OVER (...) syntax after WITHIN GROUP. +3765 # https://learn.microsoft.com/en-us/sql/t-sql/functions/percentile-disc-transact-sql?view=sql-server-ver16 +3766 if self._match(TokenType.WITHIN_GROUP): +3767 order = self._parse_wrapped(self._parse_order) +3768 this = self.expression(exp.WithinGroup, this=this, expression=order) +3769 +3770 # SQL spec defines an optional [ { IGNORE | RESPECT } NULLS ] OVER +3771 # Some dialects choose to implement and some do not. +3772 # https://dev.mysql.com/doc/refman/8.0/en/window-function-descriptions.html 3773 -3774 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) -3775 partition = self._parse_partition_by() -3776 order = self._parse_order() -3777 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text -3778 -3779 if kind: -3780 self._match(TokenType.BETWEEN) -3781 start = self._parse_window_spec() -3782 self._match(TokenType.AND) -3783 end = self._parse_window_spec() -3784 -3785 spec = self.expression( -3786 exp.WindowSpec, -3787 kind=kind, -3788 start=start["value"], -3789 start_side=start["side"], -3790 end=end["value"], -3791 end_side=end["side"], -3792 ) -3793 else: -3794 spec = None -3795 -3796 self._match_r_paren() -3797 -3798 return self.expression( -3799 exp.Window, -3800 this=this, -3801 partition_by=partition, -3802 order=order, -3803 spec=spec, -3804 alias=window_alias, -3805 ) -3806 -3807 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: -3808 self._match(TokenType.BETWEEN) +3774 # There is some code above in _parse_lambda that handles +3775 # SELECT FIRST_VALUE(TABLE.COLUMN IGNORE|RESPECT NULLS) OVER ... +3776 +3777 # The below changes handle +3778 # SELECT FIRST_VALUE(TABLE.COLUMN) IGNORE|RESPECT NULLS OVER ... +3779 +3780 # Oracle allows both formats +3781 # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) +3782 # and Snowflake chose to do the same for familiarity +3783 # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes +3784 this = self._parse_respect_or_ignore_nulls(this) +3785 +3786 # bigquery select from window x AS (partition by ...) +3787 if alias: +3788 over = None +3789 self._match(TokenType.ALIAS) +3790 elif not self._match_set(self.WINDOW_BEFORE_PAREN_TOKENS): +3791 return this +3792 else: +3793 over = self._prev.text.upper() +3794 +3795 if not self._match(TokenType.L_PAREN): +3796 return self.expression( +3797 exp.Window, this=this, alias=self._parse_id_var(False), over=over +3798 ) +3799 +3800 window_alias = self._parse_id_var(any_token=False, tokens=self.WINDOW_ALIAS_TOKENS) +3801 +3802 first = self._match(TokenType.FIRST) +3803 if self._match_text_seq("LAST"): +3804 first = False +3805 +3806 partition = self._parse_partition_by() +3807 order = self._parse_order() +3808 kind = self._match_set((TokenType.ROWS, TokenType.RANGE)) and self._prev.text 3809 -3810 return { -3811 "value": ( -3812 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text -3813 ) -3814 or self._parse_bitwise(), -3815 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, -3816 } -3817 -3818 def _parse_alias( -3819 self, this: t.Optional[exp.Expression], explicit: bool = False -3820 ) -> t.Optional[exp.Expression]: -3821 any_token = self._match(TokenType.ALIAS) -3822 -3823 if explicit and not any_token: -3824 return this -3825 -3826 if self._match(TokenType.L_PAREN): -3827 aliases = self.expression( -3828 exp.Aliases, -3829 this=this, -3830 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), -3831 ) -3832 self._match_r_paren(aliases) -3833 return aliases -3834 -3835 alias = self._parse_id_var(any_token) -3836 -3837 if alias: -3838 return self.expression(exp.Alias, this=this, alias=alias) +3810 if kind: +3811 self._match(TokenType.BETWEEN) +3812 start = self._parse_window_spec() +3813 self._match(TokenType.AND) +3814 end = self._parse_window_spec() +3815 +3816 spec = self.expression( +3817 exp.WindowSpec, +3818 kind=kind, +3819 start=start["value"], +3820 start_side=start["side"], +3821 end=end["value"], +3822 end_side=end["side"], +3823 ) +3824 else: +3825 spec = None +3826 +3827 self._match_r_paren() +3828 +3829 return self.expression( +3830 exp.Window, +3831 this=this, +3832 partition_by=partition, +3833 order=order, +3834 spec=spec, +3835 alias=window_alias, +3836 over=over, +3837 first=first, +3838 ) 3839 -3840 return this -3841 -3842 def _parse_id_var( -3843 self, -3844 any_token: bool = True, -3845 tokens: t.Optional[t.Collection[TokenType]] = None, -3846 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, -3847 ) -> t.Optional[exp.Expression]: -3848 identifier = self._parse_identifier() -3849 -3850 if identifier: -3851 return identifier -3852 -3853 prefix = "" -3854 -3855 if prefix_tokens: -3856 while self._match_set(prefix_tokens): -3857 prefix += self._prev.text +3840 def _parse_window_spec(self) -> t.Dict[str, t.Optional[str | exp.Expression]]: +3841 self._match(TokenType.BETWEEN) +3842 +3843 return { +3844 "value": ( +3845 self._match_set((TokenType.UNBOUNDED, TokenType.CURRENT_ROW)) and self._prev.text +3846 ) +3847 or self._parse_bitwise(), +3848 "side": self._match_set((TokenType.PRECEDING, TokenType.FOLLOWING)) and self._prev.text, +3849 } +3850 +3851 def _parse_alias( +3852 self, this: t.Optional[exp.Expression], explicit: bool = False +3853 ) -> t.Optional[exp.Expression]: +3854 any_token = self._match(TokenType.ALIAS) +3855 +3856 if explicit and not any_token: +3857 return this 3858 -3859 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): -3860 quoted = self._prev.token_type == TokenType.STRING -3861 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) -3862 -3863 return None -3864 -3865 def _parse_string(self) -> t.Optional[exp.Expression]: -3866 if self._match(TokenType.STRING): -3867 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) -3868 return self._parse_placeholder() +3859 if self._match(TokenType.L_PAREN): +3860 aliases = self.expression( +3861 exp.Aliases, +3862 this=this, +3863 expressions=self._parse_csv(lambda: self._parse_id_var(any_token)), +3864 ) +3865 self._match_r_paren(aliases) +3866 return aliases +3867 +3868 alias = self._parse_id_var(any_token) 3869 -3870 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: -3871 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3870 if alias: +3871 return self.expression(exp.Alias, this=this, alias=alias) 3872 -3873 def _parse_number(self) -> t.Optional[exp.Expression]: -3874 if self._match(TokenType.NUMBER): -3875 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) -3876 return self._parse_placeholder() -3877 -3878 def _parse_identifier(self) -> t.Optional[exp.Expression]: -3879 if self._match(TokenType.IDENTIFIER): -3880 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) -3881 return self._parse_placeholder() +3873 return this +3874 +3875 def _parse_id_var( +3876 self, +3877 any_token: bool = True, +3878 tokens: t.Optional[t.Collection[TokenType]] = None, +3879 prefix_tokens: t.Optional[t.Collection[TokenType]] = None, +3880 ) -> t.Optional[exp.Expression]: +3881 identifier = self._parse_identifier() 3882 -3883 def _parse_var( -3884 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None -3885 ) -> t.Optional[exp.Expression]: -3886 if ( -3887 (any_token and self._advance_any()) -3888 or self._match(TokenType.VAR) -3889 or (self._match_set(tokens) if tokens else False) -3890 ): -3891 return self.expression(exp.Var, this=self._prev.text) -3892 return self._parse_placeholder() -3893 -3894 def _advance_any(self) -> t.Optional[Token]: -3895 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: -3896 self._advance() -3897 return self._prev -3898 return None -3899 -3900 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: -3901 return self._parse_var() or self._parse_string() +3883 if identifier: +3884 return identifier +3885 +3886 prefix = "" +3887 +3888 if prefix_tokens: +3889 while self._match_set(prefix_tokens): +3890 prefix += self._prev.text +3891 +3892 if (any_token and self._advance_any()) or self._match_set(tokens or self.ID_VAR_TOKENS): +3893 quoted = self._prev.token_type == TokenType.STRING +3894 return exp.Identifier(this=prefix + self._prev.text, quoted=quoted) +3895 +3896 return None +3897 +3898 def _parse_string(self) -> t.Optional[exp.Expression]: +3899 if self._match(TokenType.STRING): +3900 return self.PRIMARY_PARSERS[TokenType.STRING](self, self._prev) +3901 return self._parse_placeholder() 3902 -3903 def _parse_null(self) -> t.Optional[exp.Expression]: -3904 if self._match(TokenType.NULL): -3905 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) -3906 return None -3907 -3908 def _parse_boolean(self) -> t.Optional[exp.Expression]: -3909 if self._match(TokenType.TRUE): -3910 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) -3911 if self._match(TokenType.FALSE): -3912 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) -3913 return None -3914 -3915 def _parse_star(self) -> t.Optional[exp.Expression]: -3916 if self._match(TokenType.STAR): -3917 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) -3918 return None -3919 -3920 def _parse_parameter(self) -> exp.Expression: -3921 wrapped = self._match(TokenType.L_BRACE) -3922 this = self._parse_var() or self._parse_primary() -3923 self._match(TokenType.R_BRACE) -3924 return self.expression(exp.Parameter, this=this, wrapped=wrapped) -3925 -3926 def _parse_placeholder(self) -> t.Optional[exp.Expression]: -3927 if self._match_set(self.PLACEHOLDER_PARSERS): -3928 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) -3929 if placeholder: -3930 return placeholder -3931 self._advance(-1) -3932 return None -3933 -3934 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3935 if not self._match(TokenType.EXCEPT): -3936 return None -3937 if self._match(TokenType.L_PAREN, advance=False): -3938 return self._parse_wrapped_csv(self._parse_column) -3939 return self._parse_csv(self._parse_column) +3903 def _parse_string_as_identifier(self) -> t.Optional[exp.Expression]: +3904 return exp.to_identifier(self._match(TokenType.STRING) and self._prev.text, quoted=True) +3905 +3906 def _parse_number(self) -> t.Optional[exp.Expression]: +3907 if self._match(TokenType.NUMBER): +3908 return self.PRIMARY_PARSERS[TokenType.NUMBER](self, self._prev) +3909 return self._parse_placeholder() +3910 +3911 def _parse_identifier(self) -> t.Optional[exp.Expression]: +3912 if self._match(TokenType.IDENTIFIER): +3913 return self.expression(exp.Identifier, this=self._prev.text, quoted=True) +3914 return self._parse_placeholder() +3915 +3916 def _parse_var( +3917 self, any_token: bool = False, tokens: t.Optional[t.Collection[TokenType]] = None +3918 ) -> t.Optional[exp.Expression]: +3919 if ( +3920 (any_token and self._advance_any()) +3921 or self._match(TokenType.VAR) +3922 or (self._match_set(tokens) if tokens else False) +3923 ): +3924 return self.expression(exp.Var, this=self._prev.text) +3925 return self._parse_placeholder() +3926 +3927 def _advance_any(self) -> t.Optional[Token]: +3928 if self._curr and self._curr.token_type not in self.RESERVED_KEYWORDS: +3929 self._advance() +3930 return self._prev +3931 return None +3932 +3933 def _parse_var_or_string(self) -> t.Optional[exp.Expression]: +3934 return self._parse_var() or self._parse_string() +3935 +3936 def _parse_null(self) -> t.Optional[exp.Expression]: +3937 if self._match(TokenType.NULL): +3938 return self.PRIMARY_PARSERS[TokenType.NULL](self, self._prev) +3939 return None 3940 -3941 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: -3942 if not self._match(TokenType.REPLACE): -3943 return None -3944 if self._match(TokenType.L_PAREN, advance=False): -3945 return self._parse_wrapped_csv(self._parse_expression) -3946 return self._parse_csv(self._parse_expression) +3941 def _parse_boolean(self) -> t.Optional[exp.Expression]: +3942 if self._match(TokenType.TRUE): +3943 return self.PRIMARY_PARSERS[TokenType.TRUE](self, self._prev) +3944 if self._match(TokenType.FALSE): +3945 return self.PRIMARY_PARSERS[TokenType.FALSE](self, self._prev) +3946 return None 3947 -3948 def _parse_csv( -3949 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3950 ) -> t.List[t.Optional[exp.Expression]]: -3951 parse_result = parse_method() -3952 items = [parse_result] if parse_result is not None else [] -3953 -3954 while self._match(sep): -3955 if parse_result and self._prev_comments: -3956 parse_result.comments = self._prev_comments -3957 -3958 parse_result = parse_method() -3959 if parse_result is not None: -3960 items.append(parse_result) -3961 -3962 return items -3963 -3964 def _parse_tokens( -3965 self, parse_method: t.Callable, expressions: t.Dict -3966 ) -> t.Optional[exp.Expression]: -3967 this = parse_method() -3968 -3969 while self._match_set(expressions): -3970 this = self.expression( -3971 expressions[self._prev.token_type], -3972 this=this, -3973 comments=self._prev_comments, -3974 expression=parse_method(), -3975 ) -3976 -3977 return this -3978 -3979 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: -3980 return self._parse_wrapped_csv(self._parse_id_var) -3981 -3982 def _parse_wrapped_csv( -3983 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA -3984 ) -> t.List[t.Optional[exp.Expression]]: -3985 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +3948 def _parse_star(self) -> t.Optional[exp.Expression]: +3949 if self._match(TokenType.STAR): +3950 return self.PRIMARY_PARSERS[TokenType.STAR](self, self._prev) +3951 return None +3952 +3953 def _parse_parameter(self) -> exp.Expression: +3954 wrapped = self._match(TokenType.L_BRACE) +3955 this = self._parse_var() or self._parse_primary() +3956 self._match(TokenType.R_BRACE) +3957 return self.expression(exp.Parameter, this=this, wrapped=wrapped) +3958 +3959 def _parse_placeholder(self) -> t.Optional[exp.Expression]: +3960 if self._match_set(self.PLACEHOLDER_PARSERS): +3961 placeholder = self.PLACEHOLDER_PARSERS[self._prev.token_type](self) +3962 if placeholder: +3963 return placeholder +3964 self._advance(-1) +3965 return None +3966 +3967 def _parse_except(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3968 if not self._match(TokenType.EXCEPT): +3969 return None +3970 if self._match(TokenType.L_PAREN, advance=False): +3971 return self._parse_wrapped_csv(self._parse_column) +3972 return self._parse_csv(self._parse_column) +3973 +3974 def _parse_replace(self) -> t.Optional[t.List[t.Optional[exp.Expression]]]: +3975 if not self._match(TokenType.REPLACE): +3976 return None +3977 if self._match(TokenType.L_PAREN, advance=False): +3978 return self._parse_wrapped_csv(self._parse_expression) +3979 return self._parse_csv(self._parse_expression) +3980 +3981 def _parse_csv( +3982 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +3983 ) -> t.List[t.Optional[exp.Expression]]: +3984 parse_result = parse_method() +3985 items = [parse_result] if parse_result is not None else [] 3986 -3987 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: -3988 self._match_l_paren() -3989 parse_result = parse_method() -3990 self._match_r_paren() -3991 return parse_result -3992 -3993 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: -3994 return self._parse_select() or self._parse_set_operations(self._parse_expression()) -3995 -3996 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: -3997 return self._parse_set_operations( -3998 self._parse_select(nested=True, parse_subquery_alias=False) -3999 ) -4000 -4001 def _parse_transaction(self) -> exp.Expression: -4002 this = None -4003 if self._match_texts(self.TRANSACTION_KIND): -4004 this = self._prev.text -4005 -4006 self._match_texts({"TRANSACTION", "WORK"}) -4007 -4008 modes = [] -4009 while True: -4010 mode = [] -4011 while self._match(TokenType.VAR): -4012 mode.append(self._prev.text) -4013 -4014 if mode: -4015 modes.append(" ".join(mode)) -4016 if not self._match(TokenType.COMMA): -4017 break -4018 -4019 return self.expression(exp.Transaction, this=this, modes=modes) -4020 -4021 def _parse_commit_or_rollback(self) -> exp.Expression: -4022 chain = None -4023 savepoint = None -4024 is_rollback = self._prev.token_type == TokenType.ROLLBACK +3987 while self._match(sep): +3988 if parse_result and self._prev_comments: +3989 parse_result.comments = self._prev_comments +3990 +3991 parse_result = parse_method() +3992 if parse_result is not None: +3993 items.append(parse_result) +3994 +3995 return items +3996 +3997 def _parse_tokens( +3998 self, parse_method: t.Callable, expressions: t.Dict +3999 ) -> t.Optional[exp.Expression]: +4000 this = parse_method() +4001 +4002 while self._match_set(expressions): +4003 this = self.expression( +4004 expressions[self._prev.token_type], +4005 this=this, +4006 comments=self._prev_comments, +4007 expression=parse_method(), +4008 ) +4009 +4010 return this +4011 +4012 def _parse_wrapped_id_vars(self) -> t.List[t.Optional[exp.Expression]]: +4013 return self._parse_wrapped_csv(self._parse_id_var) +4014 +4015 def _parse_wrapped_csv( +4016 self, parse_method: t.Callable, sep: TokenType = TokenType.COMMA +4017 ) -> t.List[t.Optional[exp.Expression]]: +4018 return self._parse_wrapped(lambda: self._parse_csv(parse_method, sep=sep)) +4019 +4020 def _parse_wrapped(self, parse_method: t.Callable) -> t.Any: +4021 self._match_l_paren() +4022 parse_result = parse_method() +4023 self._match_r_paren() +4024 return parse_result 4025 -4026 self._match_texts({"TRANSACTION", "WORK"}) -4027 -4028 if self._match_text_seq("TO"): -4029 self._match_text_seq("SAVEPOINT") -4030 savepoint = self._parse_id_var() -4031 -4032 if self._match(TokenType.AND): -4033 chain = not self._match_text_seq("NO") -4034 self._match_text_seq("CHAIN") -4035 -4036 if is_rollback: -4037 return self.expression(exp.Rollback, savepoint=savepoint) -4038 return self.expression(exp.Commit, chain=chain) -4039 -4040 def _parse_add_column(self) -> t.Optional[exp.Expression]: -4041 if not self._match_text_seq("ADD"): -4042 return None -4043 -4044 self._match(TokenType.COLUMN) -4045 exists_column = self._parse_exists(not_=True) -4046 expression = self._parse_column_def(self._parse_field(any_token=True)) -4047 -4048 if expression: -4049 expression.set("exists", exists_column) -4050 -4051 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns -4052 if self._match_texts(("FIRST", "AFTER")): -4053 position = self._prev.text -4054 column_position = self.expression( -4055 exp.ColumnPosition, this=self._parse_column(), position=position -4056 ) -4057 expression.set("position", column_position) +4026 def _parse_select_or_expression(self) -> t.Optional[exp.Expression]: +4027 return self._parse_select() or self._parse_set_operations(self._parse_expression()) +4028 +4029 def _parse_ddl_select(self) -> t.Optional[exp.Expression]: +4030 return self._parse_set_operations( +4031 self._parse_select(nested=True, parse_subquery_alias=False) +4032 ) +4033 +4034 def _parse_transaction(self) -> exp.Expression: +4035 this = None +4036 if self._match_texts(self.TRANSACTION_KIND): +4037 this = self._prev.text +4038 +4039 self._match_texts({"TRANSACTION", "WORK"}) +4040 +4041 modes = [] +4042 while True: +4043 mode = [] +4044 while self._match(TokenType.VAR): +4045 mode.append(self._prev.text) +4046 +4047 if mode: +4048 modes.append(" ".join(mode)) +4049 if not self._match(TokenType.COMMA): +4050 break +4051 +4052 return self.expression(exp.Transaction, this=this, modes=modes) +4053 +4054 def _parse_commit_or_rollback(self) -> exp.Expression: +4055 chain = None +4056 savepoint = None +4057 is_rollback = self._prev.token_type == TokenType.ROLLBACK 4058 -4059 return expression +4059 self._match_texts({"TRANSACTION", "WORK"}) 4060 -4061 def _parse_drop_column(self) -> t.Optional[exp.Expression]: -4062 drop = self._match(TokenType.DROP) and self._parse_drop() -4063 if drop and not isinstance(drop, exp.Command): -4064 drop.set("kind", drop.args.get("kind", "COLUMN")) -4065 return drop -4066 -4067 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html -4068 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: -4069 return self.expression( -4070 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists -4071 ) +4061 if self._match_text_seq("TO"): +4062 self._match_text_seq("SAVEPOINT") +4063 savepoint = self._parse_id_var() +4064 +4065 if self._match(TokenType.AND): +4066 chain = not self._match_text_seq("NO") +4067 self._match_text_seq("CHAIN") +4068 +4069 if is_rollback: +4070 return self.expression(exp.Rollback, savepoint=savepoint) +4071 return self.expression(exp.Commit, chain=chain) 4072 -4073 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: -4074 this = None -4075 kind = self._prev.token_type +4073 def _parse_add_column(self) -> t.Optional[exp.Expression]: +4074 if not self._match_text_seq("ADD"): +4075 return None 4076 -4077 if kind == TokenType.CONSTRAINT: -4078 this = self._parse_id_var() -4079 -4080 if self._match_text_seq("CHECK"): -4081 expression = self._parse_wrapped(self._parse_conjunction) -4082 enforced = self._match_text_seq("ENFORCED") +4077 self._match(TokenType.COLUMN) +4078 exists_column = self._parse_exists(not_=True) +4079 expression = self._parse_column_def(self._parse_field(any_token=True)) +4080 +4081 if expression: +4082 expression.set("exists", exists_column) 4083 -4084 return self.expression( -4085 exp.AddConstraint, this=this, expression=expression, enforced=enforced -4086 ) -4087 -4088 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): -4089 expression = self._parse_foreign_key() -4090 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): -4091 expression = self._parse_primary_key() -4092 else: -4093 expression = None -4094 -4095 return self.expression(exp.AddConstraint, this=this, expression=expression) -4096 -4097 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: -4098 index = self._index - 1 +4084 # https://docs.databricks.com/delta/update-schema.html#explicitly-update-schema-to-add-columns +4085 if self._match_texts(("FIRST", "AFTER")): +4086 position = self._prev.text +4087 column_position = self.expression( +4088 exp.ColumnPosition, this=self._parse_column(), position=position +4089 ) +4090 expression.set("position", column_position) +4091 +4092 return expression +4093 +4094 def _parse_drop_column(self) -> t.Optional[exp.Expression]: +4095 drop = self._match(TokenType.DROP) and self._parse_drop() +4096 if drop and not isinstance(drop, exp.Command): +4097 drop.set("kind", drop.args.get("kind", "COLUMN")) +4098 return drop 4099 -4100 if self._match_set(self.ADD_CONSTRAINT_TOKENS): -4101 return self._parse_csv(self._parse_add_constraint) -4102 -4103 self._retreat(index) -4104 return self._parse_csv(self._parse_add_column) +4100 # https://docs.aws.amazon.com/athena/latest/ug/alter-table-drop-partition.html +4101 def _parse_drop_partition(self, exists: t.Optional[bool] = None) -> exp.Expression: +4102 return self.expression( +4103 exp.DropPartition, expressions=self._parse_csv(self._parse_partition), exists=exists +4104 ) 4105 -4106 def _parse_alter_table_alter(self) -> exp.Expression: -4107 self._match(TokenType.COLUMN) -4108 column = self._parse_field(any_token=True) +4106 def _parse_add_constraint(self) -> t.Optional[exp.Expression]: +4107 this = None +4108 kind = self._prev.token_type 4109 -4110 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): -4111 return self.expression(exp.AlterColumn, this=column, drop=True) -4112 if self._match_pair(TokenType.SET, TokenType.DEFAULT): -4113 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) -4114 -4115 self._match_text_seq("SET", "DATA") -4116 return self.expression( -4117 exp.AlterColumn, -4118 this=column, -4119 dtype=self._match_text_seq("TYPE") and self._parse_types(), -4120 collate=self._match(TokenType.COLLATE) and self._parse_term(), -4121 using=self._match(TokenType.USING) and self._parse_conjunction(), -4122 ) -4123 -4124 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: -4125 index = self._index - 1 -4126 -4127 partition_exists = self._parse_exists() -4128 if self._match(TokenType.PARTITION, advance=False): -4129 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) -4130 -4131 self._retreat(index) -4132 return self._parse_csv(self._parse_drop_column) -4133 -4134 def _parse_alter_table_rename(self) -> exp.Expression: -4135 self._match_text_seq("TO") -4136 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) -4137 -4138 def _parse_alter(self) -> t.Optional[exp.Expression]: -4139 start = self._prev -4140 -4141 if not self._match(TokenType.TABLE): -4142 return self._parse_as_command(start) -4143 -4144 exists = self._parse_exists() -4145 this = self._parse_table(schema=True) -4146 -4147 if self._next: -4148 self._advance() -4149 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None -4150 -4151 if parser: -4152 actions = ensure_list(parser(self)) -4153 -4154 if not self._curr: -4155 return self.expression( -4156 exp.AlterTable, -4157 this=this, -4158 exists=exists, -4159 actions=actions, -4160 ) -4161 return self._parse_as_command(start) -4162 -4163 def _parse_merge(self) -> exp.Expression: -4164 self._match(TokenType.INTO) -4165 target = self._parse_table() +4110 if kind == TokenType.CONSTRAINT: +4111 this = self._parse_id_var() +4112 +4113 if self._match_text_seq("CHECK"): +4114 expression = self._parse_wrapped(self._parse_conjunction) +4115 enforced = self._match_text_seq("ENFORCED") +4116 +4117 return self.expression( +4118 exp.AddConstraint, this=this, expression=expression, enforced=enforced +4119 ) +4120 +4121 if kind == TokenType.FOREIGN_KEY or self._match(TokenType.FOREIGN_KEY): +4122 expression = self._parse_foreign_key() +4123 elif kind == TokenType.PRIMARY_KEY or self._match(TokenType.PRIMARY_KEY): +4124 expression = self._parse_primary_key() +4125 else: +4126 expression = None +4127 +4128 return self.expression(exp.AddConstraint, this=this, expression=expression) +4129 +4130 def _parse_alter_table_add(self) -> t.List[t.Optional[exp.Expression]]: +4131 index = self._index - 1 +4132 +4133 if self._match_set(self.ADD_CONSTRAINT_TOKENS): +4134 return self._parse_csv(self._parse_add_constraint) +4135 +4136 self._retreat(index) +4137 return self._parse_csv(self._parse_add_column) +4138 +4139 def _parse_alter_table_alter(self) -> exp.Expression: +4140 self._match(TokenType.COLUMN) +4141 column = self._parse_field(any_token=True) +4142 +4143 if self._match_pair(TokenType.DROP, TokenType.DEFAULT): +4144 return self.expression(exp.AlterColumn, this=column, drop=True) +4145 if self._match_pair(TokenType.SET, TokenType.DEFAULT): +4146 return self.expression(exp.AlterColumn, this=column, default=self._parse_conjunction()) +4147 +4148 self._match_text_seq("SET", "DATA") +4149 return self.expression( +4150 exp.AlterColumn, +4151 this=column, +4152 dtype=self._match_text_seq("TYPE") and self._parse_types(), +4153 collate=self._match(TokenType.COLLATE) and self._parse_term(), +4154 using=self._match(TokenType.USING) and self._parse_conjunction(), +4155 ) +4156 +4157 def _parse_alter_table_drop(self) -> t.List[t.Optional[exp.Expression]]: +4158 index = self._index - 1 +4159 +4160 partition_exists = self._parse_exists() +4161 if self._match(TokenType.PARTITION, advance=False): +4162 return self._parse_csv(lambda: self._parse_drop_partition(exists=partition_exists)) +4163 +4164 self._retreat(index) +4165 return self._parse_csv(self._parse_drop_column) 4166 -4167 self._match(TokenType.USING) -4168 using = self._parse_table() -4169 -4170 self._match(TokenType.ON) -4171 on = self._parse_conjunction() -4172 -4173 whens = [] -4174 while self._match(TokenType.WHEN): -4175 matched = not self._match(TokenType.NOT) -4176 self._match_text_seq("MATCHED") -4177 source = ( -4178 False -4179 if self._match_text_seq("BY", "TARGET") -4180 else self._match_text_seq("BY", "SOURCE") -4181 ) -4182 condition = self._parse_conjunction() if self._match(TokenType.AND) else None +4167 def _parse_alter_table_rename(self) -> exp.Expression: +4168 self._match_text_seq("TO") +4169 return self.expression(exp.RenameTable, this=self._parse_table(schema=True)) +4170 +4171 def _parse_alter(self) -> t.Optional[exp.Expression]: +4172 start = self._prev +4173 +4174 if not self._match(TokenType.TABLE): +4175 return self._parse_as_command(start) +4176 +4177 exists = self._parse_exists() +4178 this = self._parse_table(schema=True) +4179 +4180 if self._next: +4181 self._advance() +4182 parser = self.ALTER_PARSERS.get(self._prev.text.upper()) if self._prev else None 4183 -4184 self._match(TokenType.THEN) -4185 -4186 if self._match(TokenType.INSERT): -4187 _this = self._parse_star() -4188 if _this: -4189 then: t.Optional[exp.Expression] = self.expression(exp.Insert, this=_this) -4190 else: -4191 then = self.expression( -4192 exp.Insert, -4193 this=self._parse_value(), -4194 expression=self._match(TokenType.VALUES) and self._parse_value(), -4195 ) -4196 elif self._match(TokenType.UPDATE): -4197 expressions = self._parse_star() -4198 if expressions: -4199 then = self.expression(exp.Update, expressions=expressions) -4200 else: -4201 then = self.expression( -4202 exp.Update, -4203 expressions=self._match(TokenType.SET) -4204 and self._parse_csv(self._parse_equality), -4205 ) -4206 elif self._match(TokenType.DELETE): -4207 then = self.expression(exp.Var, this=self._prev.text) -4208 else: -4209 then = None -4210 -4211 whens.append( -4212 self.expression( -4213 exp.When, -4214 matched=matched, -4215 source=source, -4216 condition=condition, -4217 then=then, -4218 ) -4219 ) -4220 -4221 return self.expression( -4222 exp.Merge, -4223 this=target, -4224 using=using, -4225 on=on, -4226 expressions=whens, -4227 ) -4228 -4229 def _parse_show(self) -> t.Optional[exp.Expression]: -4230 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore -4231 if parser: -4232 return parser(self) -4233 self._advance() -4234 return self.expression(exp.Show, this=self._prev.text.upper()) -4235 -4236 def _parse_set_item_assignment( -4237 self, kind: t.Optional[str] = None -4238 ) -> t.Optional[exp.Expression]: -4239 index = self._index -4240 -4241 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): -4242 return self._parse_set_transaction(global_=kind == "GLOBAL") +4184 if parser: +4185 actions = ensure_list(parser(self)) +4186 +4187 if not self._curr: +4188 return self.expression( +4189 exp.AlterTable, +4190 this=this, +4191 exists=exists, +4192 actions=actions, +4193 ) +4194 return self._parse_as_command(start) +4195 +4196 def _parse_merge(self) -> exp.Expression: +4197 self._match(TokenType.INTO) +4198 target = self._parse_table() +4199 +4200 self._match(TokenType.USING) +4201 using = self._parse_table() +4202 +4203 self._match(TokenType.ON) +4204 on = self._parse_conjunction() +4205 +4206 whens = [] +4207 while self._match(TokenType.WHEN): +4208 matched = not self._match(TokenType.NOT) +4209 self._match_text_seq("MATCHED") +4210 source = ( +4211 False +4212 if self._match_text_seq("BY", "TARGET") +4213 else self._match_text_seq("BY", "SOURCE") +4214 ) +4215 condition = self._parse_conjunction() if self._match(TokenType.AND) else None +4216 +4217 self._match(TokenType.THEN) +4218 +4219 if self._match(TokenType.INSERT): +4220 _this = self._parse_star() +4221 if _this: +4222 then: t.Optional[exp.Expression] = self.expression(exp.Insert, this=_this) +4223 else: +4224 then = self.expression( +4225 exp.Insert, +4226 this=self._parse_value(), +4227 expression=self._match(TokenType.VALUES) and self._parse_value(), +4228 ) +4229 elif self._match(TokenType.UPDATE): +4230 expressions = self._parse_star() +4231 if expressions: +4232 then = self.expression(exp.Update, expressions=expressions) +4233 else: +4234 then = self.expression( +4235 exp.Update, +4236 expressions=self._match(TokenType.SET) +4237 and self._parse_csv(self._parse_equality), +4238 ) +4239 elif self._match(TokenType.DELETE): +4240 then = self.expression(exp.Var, this=self._prev.text) +4241 else: +4242 then = None 4243 -4244 left = self._parse_primary() or self._parse_id_var() -4245 -4246 if not self._match_texts(("=", "TO")): -4247 self._retreat(index) -4248 return None -4249 -4250 right = self._parse_statement() or self._parse_id_var() -4251 this = self.expression( -4252 exp.EQ, -4253 this=left, -4254 expression=right, -4255 ) -4256 -4257 return self.expression( -4258 exp.SetItem, -4259 this=this, -4260 kind=kind, -4261 ) -4262 -4263 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: -4264 self._match_text_seq("TRANSACTION") -4265 characteristics = self._parse_csv( -4266 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) -4267 ) -4268 return self.expression( -4269 exp.SetItem, -4270 expressions=characteristics, -4271 kind="TRANSACTION", -4272 **{"global": global_}, # type: ignore -4273 ) -4274 -4275 def _parse_set_item(self) -> t.Optional[exp.Expression]: -4276 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore -4277 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4244 whens.append( +4245 self.expression( +4246 exp.When, +4247 matched=matched, +4248 source=source, +4249 condition=condition, +4250 then=then, +4251 ) +4252 ) +4253 +4254 return self.expression( +4255 exp.Merge, +4256 this=target, +4257 using=using, +4258 on=on, +4259 expressions=whens, +4260 ) +4261 +4262 def _parse_show(self) -> t.Optional[exp.Expression]: +4263 parser = self._find_parser(self.SHOW_PARSERS, self._show_trie) # type: ignore +4264 if parser: +4265 return parser(self) +4266 self._advance() +4267 return self.expression(exp.Show, this=self._prev.text.upper()) +4268 +4269 def _parse_set_item_assignment( +4270 self, kind: t.Optional[str] = None +4271 ) -> t.Optional[exp.Expression]: +4272 index = self._index +4273 +4274 if kind in {"GLOBAL", "SESSION"} and self._match_text_seq("TRANSACTION"): +4275 return self._parse_set_transaction(global_=kind == "GLOBAL") +4276 +4277 left = self._parse_primary() or self._parse_id_var() 4278 -4279 def _parse_set(self) -> exp.Expression: -4280 index = self._index -4281 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4279 if not self._match_texts(("=", "TO")): +4280 self._retreat(index) +4281 return None 4282 -4283 if self._curr: -4284 self._retreat(index) -4285 return self._parse_as_command(self._prev) -4286 -4287 return set_ -4288 -4289 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: -4290 for option in options: -4291 if self._match_text_seq(*option.split(" ")): -4292 return exp.Var(this=option) -4293 return None -4294 -4295 def _parse_as_command(self, start: Token) -> exp.Command: -4296 while self._curr: -4297 self._advance() -4298 text = self._find_sql(start, self._prev) -4299 size = len(start.text) -4300 return exp.Command(this=text[:size], expression=text[size:]) -4301 -4302 def _find_parser( -4303 self, parsers: t.Dict[str, t.Callable], trie: t.Dict -4304 ) -> t.Optional[t.Callable]: -4305 if not self._curr: -4306 return None +4283 right = self._parse_statement() or self._parse_id_var() +4284 this = self.expression( +4285 exp.EQ, +4286 this=left, +4287 expression=right, +4288 ) +4289 +4290 return self.expression( +4291 exp.SetItem, +4292 this=this, +4293 kind=kind, +4294 ) +4295 +4296 def _parse_set_transaction(self, global_: bool = False) -> exp.Expression: +4297 self._match_text_seq("TRANSACTION") +4298 characteristics = self._parse_csv( +4299 lambda: self._parse_var_from_options(self.TRANSACTION_CHARACTERISTICS) +4300 ) +4301 return self.expression( +4302 exp.SetItem, +4303 expressions=characteristics, +4304 kind="TRANSACTION", +4305 **{"global": global_}, # type: ignore +4306 ) 4307 -4308 index = self._index -4309 this = [] -4310 while True: -4311 # The current token might be multiple words -4312 curr = self._curr.text.upper() -4313 key = curr.split(" ") -4314 this.append(curr) -4315 self._advance() -4316 result, trie = in_trie(trie, key) -4317 if result == 0: -4318 break -4319 if result == 2: -4320 subparser = parsers[" ".join(this)] -4321 return subparser -4322 self._retreat(index) -4323 return None -4324 -4325 def _match(self, token_type, advance=True): -4326 if not self._curr: -4327 return None -4328 -4329 if self._curr.token_type == token_type: -4330 if advance: -4331 self._advance() -4332 return True -4333 -4334 return None -4335 -4336 def _match_set(self, types, advance=True): -4337 if not self._curr: -4338 return None -4339 -4340 if self._curr.token_type in types: -4341 if advance: -4342 self._advance() -4343 return True -4344 -4345 return None -4346 -4347 def _match_pair(self, token_type_a, token_type_b, advance=True): -4348 if not self._curr or not self._next: -4349 return None -4350 -4351 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: -4352 if advance: -4353 self._advance(2) -4354 return True -4355 +4308 def _parse_set_item(self) -> t.Optional[exp.Expression]: +4309 parser = self._find_parser(self.SET_PARSERS, self._set_trie) # type: ignore +4310 return parser(self) if parser else self._parse_set_item_assignment(kind=None) +4311 +4312 def _parse_set(self) -> exp.Expression: +4313 index = self._index +4314 set_ = self.expression(exp.Set, expressions=self._parse_csv(self._parse_set_item)) +4315 +4316 if self._curr: +4317 self._retreat(index) +4318 return self._parse_as_command(self._prev) +4319 +4320 return set_ +4321 +4322 def _parse_var_from_options(self, options: t.Collection[str]) -> t.Optional[exp.Expression]: +4323 for option in options: +4324 if self._match_text_seq(*option.split(" ")): +4325 return exp.Var(this=option) +4326 return None +4327 +4328 def _parse_as_command(self, start: Token) -> exp.Command: +4329 while self._curr: +4330 self._advance() +4331 text = self._find_sql(start, self._prev) +4332 size = len(start.text) +4333 return exp.Command(this=text[:size], expression=text[size:]) +4334 +4335 def _find_parser( +4336 self, parsers: t.Dict[str, t.Callable], trie: t.Dict +4337 ) -> t.Optional[t.Callable]: +4338 if not self._curr: +4339 return None +4340 +4341 index = self._index +4342 this = [] +4343 while True: +4344 # The current token might be multiple words +4345 curr = self._curr.text.upper() +4346 key = curr.split(" ") +4347 this.append(curr) +4348 self._advance() +4349 result, trie = in_trie(trie, key) +4350 if result == 0: +4351 break +4352 if result == 2: +4353 subparser = parsers[" ".join(this)] +4354 return subparser +4355 self._retreat(index) 4356 return None 4357 -4358 def _match_l_paren(self, expression=None): -4359 if not self._match(TokenType.L_PAREN): -4360 self.raise_error("Expecting (") -4361 if expression and self._prev_comments: -4362 expression.comments = self._prev_comments -4363 -4364 def _match_r_paren(self, expression=None): -4365 if not self._match(TokenType.R_PAREN): -4366 self.raise_error("Expecting )") -4367 if expression and self._prev_comments: -4368 expression.comments = self._prev_comments -4369 -4370 def _match_texts(self, texts, advance=True): -4371 if self._curr and self._curr.text.upper() in texts: -4372 if advance: -4373 self._advance() -4374 return True -4375 return False -4376 -4377 def _match_text_seq(self, *texts, advance=True): -4378 index = self._index -4379 for text in texts: -4380 if self._curr and self._curr.text.upper() == text: -4381 self._advance() -4382 else: -4383 self._retreat(index) -4384 return False -4385 -4386 if not advance: -4387 self._retreat(index) +4358 def _match(self, token_type, advance=True): +4359 if not self._curr: +4360 return None +4361 +4362 if self._curr.token_type == token_type: +4363 if advance: +4364 self._advance() +4365 return True +4366 +4367 return None +4368 +4369 def _match_set(self, types, advance=True): +4370 if not self._curr: +4371 return None +4372 +4373 if self._curr.token_type in types: +4374 if advance: +4375 self._advance() +4376 return True +4377 +4378 return None +4379 +4380 def _match_pair(self, token_type_a, token_type_b, advance=True): +4381 if not self._curr or not self._next: +4382 return None +4383 +4384 if self._curr.token_type == token_type_a and self._next.token_type == token_type_b: +4385 if advance: +4386 self._advance(2) +4387 return True 4388 -4389 return True +4389 return None 4390 -4391 def _replace_columns_with_dots(self, this): -4392 if isinstance(this, exp.Dot): -4393 exp.replace_children(this, self._replace_columns_with_dots) -4394 elif isinstance(this, exp.Column): -4395 exp.replace_children(this, self._replace_columns_with_dots) -4396 table = this.args.get("table") -4397 this = ( -4398 self.expression(exp.Dot, this=table, expression=this.this) -4399 if table -4400 else self.expression(exp.Var, this=this.name) -4401 ) -4402 elif isinstance(this, exp.Identifier): -4403 this = self.expression(exp.Var, this=this.name) -4404 return this -4405 -4406 def _replace_lambda(self, node, lambda_variables): -4407 for column in node.find_all(exp.Column): -4408 if column.parts[0].name in lambda_variables: -4409 dot_or_id = column.to_dot() if column.table else column.this -4410 parent = column.parent -4411 -4412 while isinstance(parent, exp.Dot): -4413 if not isinstance(parent.parent, exp.Dot): -4414 parent.replace(dot_or_id) -4415 break -4416 parent = parent.parent -4417 else: -4418 if column is node: -4419 node = dot_or_id -4420 else: -4421 column.replace(dot_or_id) -4422 return node +4391 def _match_l_paren(self, expression=None): +4392 if not self._match(TokenType.L_PAREN): +4393 self.raise_error("Expecting (") +4394 if expression and self._prev_comments: +4395 expression.comments = self._prev_comments +4396 +4397 def _match_r_paren(self, expression=None): +4398 if not self._match(TokenType.R_PAREN): +4399 self.raise_error("Expecting )") +4400 if expression and self._prev_comments: +4401 expression.comments = self._prev_comments +4402 +4403 def _match_texts(self, texts, advance=True): +4404 if self._curr and self._curr.text.upper() in texts: +4405 if advance: +4406 self._advance() +4407 return True +4408 return False +4409 +4410 def _match_text_seq(self, *texts, advance=True): +4411 index = self._index +4412 for text in texts: +4413 if self._curr and self._curr.text.upper() == text: +4414 self._advance() +4415 else: +4416 self._retreat(index) +4417 return False +4418 +4419 if not advance: +4420 self._retreat(index) +4421 +4422 return True +4423 +4424 def _replace_columns_with_dots(self, this): +4425 if isinstance(this, exp.Dot): +4426 exp.replace_children(this, self._replace_columns_with_dots) +4427 elif isinstance(this, exp.Column): +4428 exp.replace_children(this, self._replace_columns_with_dots) +4429 table = this.args.get("table") +4430 this = ( +4431 self.expression(exp.Dot, this=table, expression=this.this) +4432 if table +4433 else self.expression(exp.Var, this=this.name) +4434 ) +4435 elif isinstance(this, exp.Identifier): +4436 this = self.expression(exp.Var, this=this.name) +4437 return this +4438 +4439 def _replace_lambda(self, node, lambda_variables): +4440 for column in node.find_all(exp.Column): +4441 if column.parts[0].name in lambda_variables: +4442 dot_or_id = column.to_dot() if column.table else column.this +4443 parent = column.parent +4444 +4445 while isinstance(parent, exp.Dot): +4446 if not isinstance(parent.parent, exp.Dot): +4447 parent.replace(dot_or_id) +4448 break +4449 parent = parent.parent +4450 else: +4451 if column is node: +4452 node = dot_or_id +4453 else: +4454 column.replace(dot_or_id) +4455 return node @@ -9000,24 +9066,24 @@ Default: "nulls_are_small" -
    787    def __init__(
    -788        self,
    -789        error_level: t.Optional[ErrorLevel] = None,
    -790        error_message_context: int = 100,
    -791        index_offset: int = 0,
    -792        unnest_column_only: bool = False,
    -793        alias_post_tablesample: bool = False,
    -794        max_errors: int = 3,
    -795        null_ordering: t.Optional[str] = None,
    -796    ):
    -797        self.error_level = error_level or ErrorLevel.IMMEDIATE
    -798        self.error_message_context = error_message_context
    -799        self.index_offset = index_offset
    -800        self.unnest_column_only = unnest_column_only
    -801        self.alias_post_tablesample = alias_post_tablesample
    -802        self.max_errors = max_errors
    -803        self.null_ordering = null_ordering
    -804        self.reset()
    +            
    794    def __init__(
    +795        self,
    +796        error_level: t.Optional[ErrorLevel] = None,
    +797        error_message_context: int = 100,
    +798        index_offset: int = 0,
    +799        unnest_column_only: bool = False,
    +800        alias_post_tablesample: bool = False,
    +801        max_errors: int = 3,
    +802        null_ordering: t.Optional[str] = None,
    +803    ):
    +804        self.error_level = error_level or ErrorLevel.IMMEDIATE
    +805        self.error_message_context = error_message_context
    +806        self.index_offset = index_offset
    +807        self.unnest_column_only = unnest_column_only
    +808        self.alias_post_tablesample = alias_post_tablesample
    +809        self.max_errors = max_errors
    +810        self.null_ordering = null_ordering
    +811        self.reset()
     
    @@ -9035,15 +9101,15 @@ Default: "nulls_are_small"
    -
    806    def reset(self):
    -807        self.sql = ""
    -808        self.errors = []
    -809        self._tokens = []
    -810        self._index = 0
    -811        self._curr = None
    -812        self._next = None
    -813        self._prev = None
    -814        self._prev_comments = None
    +            
    813    def reset(self):
    +814        self.sql = ""
    +815        self.errors = []
    +816        self._tokens = []
    +817        self._index = 0
    +818        self._curr = None
    +819        self._next = None
    +820        self._prev = None
    +821        self._prev_comments = None
     
    @@ -9061,23 +9127,23 @@ Default: "nulls_are_small"
    -
    816    def parse(
    -817        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    -818    ) -> t.List[t.Optional[exp.Expression]]:
    -819        """
    -820        Parses a list of tokens and returns a list of syntax trees, one tree
    -821        per parsed SQL statement.
    -822
    -823        Args:
    -824            raw_tokens: the list of tokens.
    -825            sql: the original SQL string, used to produce helpful debug messages.
    -826
    -827        Returns:
    -828            The list of syntax trees.
    -829        """
    -830        return self._parse(
    -831            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    -832        )
    +            
    823    def parse(
    +824        self, raw_tokens: t.List[Token], sql: t.Optional[str] = None
    +825    ) -> t.List[t.Optional[exp.Expression]]:
    +826        """
    +827        Parses a list of tokens and returns a list of syntax trees, one tree
    +828        per parsed SQL statement.
    +829
    +830        Args:
    +831            raw_tokens: the list of tokens.
    +832            sql: the original SQL string, used to produce helpful debug messages.
    +833
    +834        Returns:
    +835            The list of syntax trees.
    +836        """
    +837        return self._parse(
    +838            parse_method=self.__class__._parse_statement, raw_tokens=raw_tokens, sql=sql
    +839        )
     
    @@ -9111,39 +9177,39 @@ per parsed SQL statement.

    -
    834    def parse_into(
    -835        self,
    -836        expression_types: exp.IntoType,
    -837        raw_tokens: t.List[Token],
    -838        sql: t.Optional[str] = None,
    -839    ) -> t.List[t.Optional[exp.Expression]]:
    -840        """
    -841        Parses a list of tokens into a given Expression type. If a collection of Expression
    -842        types is given instead, this method will try to parse the token list into each one
    -843        of them, stopping at the first for which the parsing succeeds.
    -844
    -845        Args:
    -846            expression_types: the expression type(s) to try and parse the token list into.
    -847            raw_tokens: the list of tokens.
    -848            sql: the original SQL string, used to produce helpful debug messages.
    -849
    -850        Returns:
    -851            The target Expression.
    -852        """
    -853        errors = []
    -854        for expression_type in ensure_collection(expression_types):
    -855            parser = self.EXPRESSION_PARSERS.get(expression_type)
    -856            if not parser:
    -857                raise TypeError(f"No parser registered for {expression_type}")
    -858            try:
    -859                return self._parse(parser, raw_tokens, sql)
    -860            except ParseError as e:
    -861                e.errors[0]["into_expression"] = expression_type
    -862                errors.append(e)
    -863        raise ParseError(
    -864            f"Failed to parse into {expression_types}",
    -865            errors=merge_errors(errors),
    -866        ) from errors[-1]
    +            
    841    def parse_into(
    +842        self,
    +843        expression_types: exp.IntoType,
    +844        raw_tokens: t.List[Token],
    +845        sql: t.Optional[str] = None,
    +846    ) -> t.List[t.Optional[exp.Expression]]:
    +847        """
    +848        Parses a list of tokens into a given Expression type. If a collection of Expression
    +849        types is given instead, this method will try to parse the token list into each one
    +850        of them, stopping at the first for which the parsing succeeds.
    +851
    +852        Args:
    +853            expression_types: the expression type(s) to try and parse the token list into.
    +854            raw_tokens: the list of tokens.
    +855            sql: the original SQL string, used to produce helpful debug messages.
    +856
    +857        Returns:
    +858            The target Expression.
    +859        """
    +860        errors = []
    +861        for expression_type in ensure_collection(expression_types):
    +862            parser = self.EXPRESSION_PARSERS.get(expression_type)
    +863            if not parser:
    +864                raise TypeError(f"No parser registered for {expression_type}")
    +865            try:
    +866                return self._parse(parser, raw_tokens, sql)
    +867            except ParseError as e:
    +868                e.errors[0]["into_expression"] = expression_type
    +869                errors.append(e)
    +870        raise ParseError(
    +871            f"Failed to parse into {expression_types}",
    +872            errors=merge_errors(errors),
    +873        ) from errors[-1]
     
    @@ -9179,18 +9245,18 @@ of them, stopping at the first for which the parsing succeeds.

    -
    902    def check_errors(self) -> None:
    -903        """
    -904        Logs or raises any found errors, depending on the chosen error level setting.
    -905        """
    -906        if self.error_level == ErrorLevel.WARN:
    -907            for error in self.errors:
    -908                logger.error(str(error))
    -909        elif self.error_level == ErrorLevel.RAISE and self.errors:
    -910            raise ParseError(
    -911                concat_messages(self.errors, self.max_errors),
    -912                errors=merge_errors(self.errors),
    -913            )
    +            
    909    def check_errors(self) -> None:
    +910        """
    +911        Logs or raises any found errors, depending on the chosen error level setting.
    +912        """
    +913        if self.error_level == ErrorLevel.WARN:
    +914            for error in self.errors:
    +915                logger.error(str(error))
    +916        elif self.error_level == ErrorLevel.RAISE and self.errors:
    +917            raise ParseError(
    +918                concat_messages(self.errors, self.max_errors),
    +919                errors=merge_errors(self.errors),
    +920            )
     
    @@ -9210,33 +9276,33 @@ of them, stopping at the first for which the parsing succeeds.

    -
    915    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    -916        """
    -917        Appends an error in the list of recorded errors or raises it, depending on the chosen
    -918        error level setting.
    -919        """
    -920        token = token or self._curr or self._prev or Token.string("")
    -921        start = token.start
    -922        end = token.end
    -923        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    -924        highlight = self.sql[start:end]
    -925        end_context = self.sql[end : end + self.error_message_context]
    -926
    -927        error = ParseError.new(
    -928            f"{message}. Line {token.line}, Col: {token.col}.\n"
    -929            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    -930            description=message,
    -931            line=token.line,
    -932            col=token.col,
    -933            start_context=start_context,
    -934            highlight=highlight,
    -935            end_context=end_context,
    -936        )
    -937
    -938        if self.error_level == ErrorLevel.IMMEDIATE:
    -939            raise error
    -940
    -941        self.errors.append(error)
    +            
    922    def raise_error(self, message: str, token: t.Optional[Token] = None) -> None:
    +923        """
    +924        Appends an error in the list of recorded errors or raises it, depending on the chosen
    +925        error level setting.
    +926        """
    +927        token = token or self._curr or self._prev or Token.string("")
    +928        start = token.start
    +929        end = token.end
    +930        start_context = self.sql[max(start - self.error_message_context, 0) : start]
    +931        highlight = self.sql[start:end]
    +932        end_context = self.sql[end : end + self.error_message_context]
    +933
    +934        error = ParseError.new(
    +935            f"{message}. Line {token.line}, Col: {token.col}.\n"
    +936            f"  {start_context}\033[4m{highlight}\033[0m{end_context}",
    +937            description=message,
    +938            line=token.line,
    +939            col=token.col,
    +940            start_context=start_context,
    +941            highlight=highlight,
    +942            end_context=end_context,
    +943        )
    +944
    +945        if self.error_level == ErrorLevel.IMMEDIATE:
    +946            raise error
    +947
    +948        self.errors.append(error)
     
    @@ -9257,28 +9323,28 @@ error level setting.

    -
    943    def expression(
    -944        self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs
    -945    ) -> E:
    -946        """
    -947        Creates a new, validated Expression.
    -948
    -949        Args:
    -950            exp_class: the expression class to instantiate.
    -951            comments: an optional list of comments to attach to the expression.
    -952            kwargs: the arguments to set for the expression along with their respective values.
    -953
    -954        Returns:
    -955            The target expression.
    -956        """
    -957        instance = exp_class(**kwargs)
    -958        if self._prev_comments:
    -959            instance.comments = self._prev_comments
    -960            self._prev_comments = None
    -961        if comments:
    -962            instance.comments = comments
    -963        self.validate_expression(instance)
    -964        return instance
    +            
    950    def expression(
    +951        self, exp_class: t.Type[E], comments: t.Optional[t.List[str]] = None, **kwargs
    +952    ) -> E:
    +953        """
    +954        Creates a new, validated Expression.
    +955
    +956        Args:
    +957            exp_class: the expression class to instantiate.
    +958            comments: an optional list of comments to attach to the expression.
    +959            kwargs: the arguments to set for the expression along with their respective values.
    +960
    +961        Returns:
    +962            The target expression.
    +963        """
    +964        instance = exp_class(**kwargs)
    +965        if self._prev_comments:
    +966            instance.comments = self._prev_comments
    +967            self._prev_comments = None
    +968        if comments:
    +969            instance.comments = comments
    +970        self.validate_expression(instance)
    +971        return instance
     
    @@ -9312,22 +9378,22 @@ error level setting.

    -
    966    def validate_expression(
    -967        self, expression: exp.Expression, args: t.Optional[t.List] = None
    -968    ) -> None:
    -969        """
    -970        Validates an already instantiated expression, making sure that all its mandatory arguments
    -971        are set.
    -972
    -973        Args:
    -974            expression: the expression to validate.
    -975            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    -976        """
    -977        if self.error_level == ErrorLevel.IGNORE:
    -978            return
    +            
    973    def validate_expression(
    +974        self, expression: exp.Expression, args: t.Optional[t.List] = None
    +975    ) -> None:
    +976        """
    +977        Validates an already instantiated expression, making sure that all its mandatory arguments
    +978        are set.
     979
    -980        for error_message in expression.error_messages(args):
    -981            self.raise_error(error_message)
    +980        Args:
    +981            expression: the expression to validate.
    +982            args: an optional list of items that was used to instantiate the expression, if it's a Func.
    +983        """
    +984        if self.error_level == ErrorLevel.IGNORE:
    +985            return
    +986
    +987        for error_message in expression.error_messages(args):
    +988            self.raise_error(error_message)
     
    diff --git a/docs/sqlglot/tokens.html b/docs/sqlglot/tokens.html index 822a76d..91afd40 100644 --- a/docs/sqlglot/tokens.html +++ b/docs/sqlglot/tokens.html @@ -633,6 +633,9 @@
  • JOIN_MARKER
  • +
  • + KEEP +
  • LANGUAGE
  • @@ -684,6 +687,9 @@
  • NEXT
  • +
  • + NEXT_VALUE_FOR +
  • NO_ACTION
  • @@ -1206,949 +1212,953 @@
    215 ISNULL = auto() 216 JOIN = auto() 217 JOIN_MARKER = auto() - 218 LANGUAGE = auto() - 219 LATERAL = auto() - 220 LAZY = auto() - 221 LEADING = auto() - 222 LEFT = auto() - 223 LIKE = auto() - 224 LIKE_ANY = auto() - 225 LIMIT = auto() - 226 LOAD_DATA = auto() - 227 LOCAL = auto() - 228 MAP = auto() - 229 MATCH_RECOGNIZE = auto() - 230 MATERIALIZED = auto() - 231 MERGE = auto() - 232 MOD = auto() - 233 NATURAL = auto() - 234 NEXT = auto() - 235 NO_ACTION = auto() - 236 NOTNULL = auto() - 237 NULL = auto() - 238 NULLS_FIRST = auto() - 239 NULLS_LAST = auto() - 240 OFFSET = auto() - 241 ON = auto() - 242 ONLY = auto() - 243 OPTIONS = auto() - 244 ORDER_BY = auto() - 245 ORDERED = auto() - 246 ORDINALITY = auto() - 247 OUTER = auto() - 248 OUT_OF = auto() - 249 OVER = auto() - 250 OVERLAPS = auto() - 251 OVERWRITE = auto() - 252 PARTITION = auto() - 253 PARTITION_BY = auto() - 254 PERCENT = auto() - 255 PIVOT = auto() - 256 PLACEHOLDER = auto() - 257 PRAGMA = auto() - 258 PRECEDING = auto() - 259 PRIMARY_KEY = auto() - 260 PROCEDURE = auto() - 261 PROPERTIES = auto() - 262 PSEUDO_TYPE = auto() - 263 QUALIFY = auto() - 264 QUOTE = auto() - 265 RANGE = auto() - 266 RECURSIVE = auto() - 267 REPLACE = auto() - 268 RESPECT_NULLS = auto() - 269 RETURNING = auto() - 270 REFERENCES = auto() - 271 RIGHT = auto() - 272 RLIKE = auto() - 273 ROLLBACK = auto() - 274 ROLLUP = auto() - 275 ROW = auto() - 276 ROWS = auto() - 277 SEED = auto() - 278 SELECT = auto() - 279 SEMI = auto() - 280 SEPARATOR = auto() - 281 SERDE_PROPERTIES = auto() - 282 SET = auto() - 283 SHOW = auto() - 284 SIMILAR_TO = auto() - 285 SOME = auto() - 286 SORTKEY = auto() - 287 SORT_BY = auto() - 288 STRUCT = auto() - 289 TABLE_SAMPLE = auto() - 290 TEMPORARY = auto() - 291 TOP = auto() - 292 THEN = auto() - 293 TRAILING = auto() - 294 TRUE = auto() - 295 UNBOUNDED = auto() - 296 UNCACHE = auto() - 297 UNION = auto() - 298 UNLOGGED = auto() - 299 UNNEST = auto() - 300 UNPIVOT = auto() - 301 UPDATE = auto() - 302 USE = auto() - 303 USING = auto() - 304 VALUES = auto() - 305 VIEW = auto() - 306 VOLATILE = auto() - 307 WHEN = auto() - 308 WHERE = auto() - 309 WINDOW = auto() - 310 WITH = auto() - 311 WITH_TIME_ZONE = auto() - 312 WITH_LOCAL_TIME_ZONE = auto() - 313 WITHIN_GROUP = auto() - 314 WITHOUT_TIME_ZONE = auto() - 315 UNIQUE = auto() - 316 - 317 - 318class Token: - 319 __slots__ = ("token_type", "text", "line", "col", "end", "comments") - 320 - 321 @classmethod - 322 def number(cls, number: int) -> Token: - 323 """Returns a NUMBER token with `number` as its text.""" - 324 return cls(TokenType.NUMBER, str(number)) - 325 - 326 @classmethod - 327 def string(cls, string: str) -> Token: - 328 """Returns a STRING token with `string` as its text.""" - 329 return cls(TokenType.STRING, string) - 330 - 331 @classmethod - 332 def identifier(cls, identifier: str) -> Token: - 333 """Returns an IDENTIFIER token with `identifier` as its text.""" - 334 return cls(TokenType.IDENTIFIER, identifier) - 335 - 336 @classmethod - 337 def var(cls, var: str) -> Token: - 338 """Returns an VAR token with `var` as its text.""" - 339 return cls(TokenType.VAR, var) - 340 - 341 def __init__( - 342 self, - 343 token_type: TokenType, - 344 text: str, - 345 line: int = 1, - 346 col: int = 1, - 347 end: int = 0, - 348 comments: t.List[str] = [], - 349 ) -> None: - 350 self.token_type = token_type - 351 self.text = text - 352 self.line = line - 353 size = len(text) - 354 self.col = col - 355 self.end = end if end else size - 356 self.comments = comments - 357 - 358 @property - 359 def start(self) -> int: - 360 """Returns the start of the token.""" - 361 return self.end - len(self.text) - 362 - 363 def __repr__(self) -> str: - 364 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) - 365 return f"<Token {attributes}>" - 366 - 367 - 368class _Tokenizer(type): - 369 def __new__(cls, clsname, bases, attrs): - 370 klass = super().__new__(cls, clsname, bases, attrs) - 371 - 372 klass._QUOTES = { - 373 f"{prefix}{s}": e - 374 for s, e in cls._delimeter_list_to_dict(klass.QUOTES).items() - 375 for prefix in (("",) if s[0].isalpha() else ("", "n", "N")) - 376 } - 377 klass._BIT_STRINGS = cls._delimeter_list_to_dict(klass.BIT_STRINGS) - 378 klass._HEX_STRINGS = cls._delimeter_list_to_dict(klass.HEX_STRINGS) - 379 klass._BYTE_STRINGS = cls._delimeter_list_to_dict(klass.BYTE_STRINGS) - 380 klass._IDENTIFIERS = cls._delimeter_list_to_dict(klass.IDENTIFIERS) - 381 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) - 382 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) - 383 klass._COMMENTS = dict( - 384 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) - 385 for comment in klass.COMMENTS - 386 ) - 387 - 388 klass.KEYWORD_TRIE = new_trie( - 389 key.upper() - 390 for key in { - 391 **klass.KEYWORDS, - 392 **{comment: TokenType.COMMENT for comment in klass._COMMENTS}, - 393 **{quote: TokenType.QUOTE for quote in klass._QUOTES}, - 394 **{bit_string: TokenType.BIT_STRING for bit_string in klass._BIT_STRINGS}, - 395 **{hex_string: TokenType.HEX_STRING for hex_string in klass._HEX_STRINGS}, - 396 **{byte_string: TokenType.BYTE_STRING for byte_string in klass._BYTE_STRINGS}, - 397 } - 398 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) - 399 ) - 400 - 401 return klass + 218 KEEP = auto() + 219 LANGUAGE = auto() + 220 LATERAL = auto() + 221 LAZY = auto() + 222 LEADING = auto() + 223 LEFT = auto() + 224 LIKE = auto() + 225 LIKE_ANY = auto() + 226 LIMIT = auto() + 227 LOAD_DATA = auto() + 228 LOCAL = auto() + 229 MAP = auto() + 230 MATCH_RECOGNIZE = auto() + 231 MATERIALIZED = auto() + 232 MERGE = auto() + 233 MOD = auto() + 234 NATURAL = auto() + 235 NEXT = auto() + 236 NEXT_VALUE_FOR = auto() + 237 NO_ACTION = auto() + 238 NOTNULL = auto() + 239 NULL = auto() + 240 NULLS_FIRST = auto() + 241 NULLS_LAST = auto() + 242 OFFSET = auto() + 243 ON = auto() + 244 ONLY = auto() + 245 OPTIONS = auto() + 246 ORDER_BY = auto() + 247 ORDERED = auto() + 248 ORDINALITY = auto() + 249 OUTER = auto() + 250 OUT_OF = auto() + 251 OVER = auto() + 252 OVERLAPS = auto() + 253 OVERWRITE = auto() + 254 PARTITION = auto() + 255 PARTITION_BY = auto() + 256 PERCENT = auto() + 257 PIVOT = auto() + 258 PLACEHOLDER = auto() + 259 PRAGMA = auto() + 260 PRECEDING = auto() + 261 PRIMARY_KEY = auto() + 262 PROCEDURE = auto() + 263 PROPERTIES = auto() + 264 PSEUDO_TYPE = auto() + 265 QUALIFY = auto() + 266 QUOTE = auto() + 267 RANGE = auto() + 268 RECURSIVE = auto() + 269 REPLACE = auto() + 270 RESPECT_NULLS = auto() + 271 RETURNING = auto() + 272 REFERENCES = auto() + 273 RIGHT = auto() + 274 RLIKE = auto() + 275 ROLLBACK = auto() + 276 ROLLUP = auto() + 277 ROW = auto() + 278 ROWS = auto() + 279 SEED = auto() + 280 SELECT = auto() + 281 SEMI = auto() + 282 SEPARATOR = auto() + 283 SERDE_PROPERTIES = auto() + 284 SET = auto() + 285 SHOW = auto() + 286 SIMILAR_TO = auto() + 287 SOME = auto() + 288 SORTKEY = auto() + 289 SORT_BY = auto() + 290 STRUCT = auto() + 291 TABLE_SAMPLE = auto() + 292 TEMPORARY = auto() + 293 TOP = auto() + 294 THEN = auto() + 295 TRAILING = auto() + 296 TRUE = auto() + 297 UNBOUNDED = auto() + 298 UNCACHE = auto() + 299 UNION = auto() + 300 UNLOGGED = auto() + 301 UNNEST = auto() + 302 UNPIVOT = auto() + 303 UPDATE = auto() + 304 USE = auto() + 305 USING = auto() + 306 VALUES = auto() + 307 VIEW = auto() + 308 VOLATILE = auto() + 309 WHEN = auto() + 310 WHERE = auto() + 311 WINDOW = auto() + 312 WITH = auto() + 313 WITH_TIME_ZONE = auto() + 314 WITH_LOCAL_TIME_ZONE = auto() + 315 WITHIN_GROUP = auto() + 316 WITHOUT_TIME_ZONE = auto() + 317 UNIQUE = auto() + 318 + 319 + 320class Token: + 321 __slots__ = ("token_type", "text", "line", "col", "end", "comments") + 322 + 323 @classmethod + 324 def number(cls, number: int) -> Token: + 325 """Returns a NUMBER token with `number` as its text.""" + 326 return cls(TokenType.NUMBER, str(number)) + 327 + 328 @classmethod + 329 def string(cls, string: str) -> Token: + 330 """Returns a STRING token with `string` as its text.""" + 331 return cls(TokenType.STRING, string) + 332 + 333 @classmethod + 334 def identifier(cls, identifier: str) -> Token: + 335 """Returns an IDENTIFIER token with `identifier` as its text.""" + 336 return cls(TokenType.IDENTIFIER, identifier) + 337 + 338 @classmethod + 339 def var(cls, var: str) -> Token: + 340 """Returns an VAR token with `var` as its text.""" + 341 return cls(TokenType.VAR, var) + 342 + 343 def __init__( + 344 self, + 345 token_type: TokenType, + 346 text: str, + 347 line: int = 1, + 348 col: int = 1, + 349 end: int = 0, + 350 comments: t.List[str] = [], + 351 ) -> None: + 352 self.token_type = token_type + 353 self.text = text + 354 self.line = line + 355 size = len(text) + 356 self.col = col + 357 self.end = end if end else size + 358 self.comments = comments + 359 + 360 @property + 361 def start(self) -> int: + 362 """Returns the start of the token.""" + 363 return self.end - len(self.text) + 364 + 365 def __repr__(self) -> str: + 366 attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__) + 367 return f"<Token {attributes}>" + 368 + 369 + 370class _Tokenizer(type): + 371 def __new__(cls, clsname, bases, attrs): + 372 klass = super().__new__(cls, clsname, bases, attrs) + 373 + 374 klass._QUOTES = { + 375 f"{prefix}{s}": e + 376 for s, e in cls._delimeter_list_to_dict(klass.QUOTES).items() + 377 for prefix in (("",) if s[0].isalpha() else ("", "n", "N")) + 378 } + 379 klass._BIT_STRINGS = cls._delimeter_list_to_dict(klass.BIT_STRINGS) + 380 klass._HEX_STRINGS = cls._delimeter_list_to_dict(klass.HEX_STRINGS) + 381 klass._BYTE_STRINGS = cls._delimeter_list_to_dict(klass.BYTE_STRINGS) + 382 klass._IDENTIFIERS = cls._delimeter_list_to_dict(klass.IDENTIFIERS) + 383 klass._STRING_ESCAPES = set(klass.STRING_ESCAPES) + 384 klass._IDENTIFIER_ESCAPES = set(klass.IDENTIFIER_ESCAPES) + 385 klass._COMMENTS = dict( + 386 (comment, None) if isinstance(comment, str) else (comment[0], comment[1]) + 387 for comment in klass.COMMENTS + 388 ) + 389 + 390 klass.KEYWORD_TRIE = new_trie( + 391 key.upper() + 392 for key in { + 393 **klass.KEYWORDS, + 394 **{comment: TokenType.COMMENT for comment in klass._COMMENTS}, + 395 **{quote: TokenType.QUOTE for quote in klass._QUOTES}, + 396 **{bit_string: TokenType.BIT_STRING for bit_string in klass._BIT_STRINGS}, + 397 **{hex_string: TokenType.HEX_STRING for hex_string in klass._HEX_STRINGS}, + 398 **{byte_string: TokenType.BYTE_STRING for byte_string in klass._BYTE_STRINGS}, + 399 } + 400 if " " in key or any(single in key for single in klass.SINGLE_TOKENS) + 401 ) 402 - 403 @staticmethod - 404 def _delimeter_list_to_dict(list: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: - 405 return dict((item, item) if isinstance(item, str) else (item[0], item[1]) for item in list) - 406 - 407 - 408class Tokenizer(metaclass=_Tokenizer): - 409 SINGLE_TOKENS = { - 410 "(": TokenType.L_PAREN, - 411 ")": TokenType.R_PAREN, - 412 "[": TokenType.L_BRACKET, - 413 "]": TokenType.R_BRACKET, - 414 "{": TokenType.L_BRACE, - 415 "}": TokenType.R_BRACE, - 416 "&": TokenType.AMP, - 417 "^": TokenType.CARET, - 418 ":": TokenType.COLON, - 419 ",": TokenType.COMMA, - 420 ".": TokenType.DOT, - 421 "-": TokenType.DASH, - 422 "=": TokenType.EQ, - 423 ">": TokenType.GT, - 424 "<": TokenType.LT, - 425 "%": TokenType.MOD, - 426 "!": TokenType.NOT, - 427 "|": TokenType.PIPE, - 428 "+": TokenType.PLUS, - 429 ";": TokenType.SEMICOLON, - 430 "/": TokenType.SLASH, - 431 "\\": TokenType.BACKSLASH, - 432 "*": TokenType.STAR, - 433 "~": TokenType.TILDA, - 434 "?": TokenType.PLACEHOLDER, - 435 "@": TokenType.PARAMETER, - 436 # used for breaking a var like x'y' but nothing else - 437 # the token type doesn't matter - 438 "'": TokenType.QUOTE, - 439 "`": TokenType.IDENTIFIER, - 440 '"': TokenType.IDENTIFIER, - 441 "#": TokenType.HASH, - 442 } - 443 - 444 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] - 445 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] - 446 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] - 447 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] - 448 IDENTIFIER_ESCAPES = ['"'] - 449 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] - 450 STRING_ESCAPES = ["'"] - 451 VAR_SINGLE_TOKENS: t.Set[str] = set() - 452 - 453 _COMMENTS: t.Dict[str, str] = {} - 454 _BIT_STRINGS: t.Dict[str, str] = {} - 455 _BYTE_STRINGS: t.Dict[str, str] = {} - 456 _HEX_STRINGS: t.Dict[str, str] = {} - 457 _IDENTIFIERS: t.Dict[str, str] = {} - 458 _IDENTIFIER_ESCAPES: t.Set[str] = set() - 459 _QUOTES: t.Dict[str, str] = {} - 460 _STRING_ESCAPES: t.Set[str] = set() - 461 - 462 KEYWORDS: t.Dict[t.Optional[str], TokenType] = { - 463 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, - 464 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, - 465 "{{+": TokenType.BLOCK_START, - 466 "{{-": TokenType.BLOCK_START, - 467 "+}}": TokenType.BLOCK_END, - 468 "-}}": TokenType.BLOCK_END, - 469 "/*+": TokenType.HINT, - 470 "==": TokenType.EQ, - 471 "::": TokenType.DCOLON, - 472 "||": TokenType.DPIPE, - 473 ">=": TokenType.GTE, - 474 "<=": TokenType.LTE, - 475 "<>": TokenType.NEQ, - 476 "!=": TokenType.NEQ, - 477 "<=>": TokenType.NULLSAFE_EQ, - 478 "->": TokenType.ARROW, - 479 "->>": TokenType.DARROW, - 480 "=>": TokenType.FARROW, - 481 "#>": TokenType.HASH_ARROW, - 482 "#>>": TokenType.DHASH_ARROW, - 483 "<->": TokenType.LR_ARROW, - 484 "&&": TokenType.DAMP, - 485 "ALL": TokenType.ALL, - 486 "ALWAYS": TokenType.ALWAYS, - 487 "AND": TokenType.AND, - 488 "ANTI": TokenType.ANTI, - 489 "ANY": TokenType.ANY, - 490 "ASC": TokenType.ASC, - 491 "AS": TokenType.ALIAS, - 492 "AT TIME ZONE": TokenType.AT_TIME_ZONE, - 493 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, - 494 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, - 495 "BEGIN": TokenType.BEGIN, - 496 "BETWEEN": TokenType.BETWEEN, - 497 "BOTH": TokenType.BOTH, - 498 "BUCKET": TokenType.BUCKET, - 499 "BY DEFAULT": TokenType.BY_DEFAULT, - 500 "CACHE": TokenType.CACHE, - 501 "UNCACHE": TokenType.UNCACHE, - 502 "CASE": TokenType.CASE, - 503 "CASCADE": TokenType.CASCADE, - 504 "CHARACTER SET": TokenType.CHARACTER_SET, - 505 "CLUSTER BY": TokenType.CLUSTER_BY, - 506 "COLLATE": TokenType.COLLATE, - 507 "COLUMN": TokenType.COLUMN, - 508 "COMMIT": TokenType.COMMIT, - 509 "COMPOUND": TokenType.COMPOUND, - 510 "CONSTRAINT": TokenType.CONSTRAINT, - 511 "CREATE": TokenType.CREATE, - 512 "CROSS": TokenType.CROSS, - 513 "CUBE": TokenType.CUBE, - 514 "CURRENT_DATE": TokenType.CURRENT_DATE, - 515 "CURRENT ROW": TokenType.CURRENT_ROW, - 516 "CURRENT_TIME": TokenType.CURRENT_TIME, - 517 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, - 518 "CURRENT_USER": TokenType.CURRENT_USER, - 519 "DATABASE": TokenType.DATABASE, - 520 "DEFAULT": TokenType.DEFAULT, - 521 "DELETE": TokenType.DELETE, - 522 "DESC": TokenType.DESC, - 523 "DESCRIBE": TokenType.DESCRIBE, - 524 "DISTINCT": TokenType.DISTINCT, - 525 "DISTINCT FROM": TokenType.DISTINCT_FROM, - 526 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, - 527 "DIV": TokenType.DIV, - 528 "DROP": TokenType.DROP, - 529 "ELSE": TokenType.ELSE, - 530 "END": TokenType.END, - 531 "ESCAPE": TokenType.ESCAPE, - 532 "EXCEPT": TokenType.EXCEPT, - 533 "EXECUTE": TokenType.EXECUTE, - 534 "EXISTS": TokenType.EXISTS, - 535 "FALSE": TokenType.FALSE, - 536 "FETCH": TokenType.FETCH, - 537 "FILTER": TokenType.FILTER, - 538 "FIRST": TokenType.FIRST, - 539 "FULL": TokenType.FULL, - 540 "FUNCTION": TokenType.FUNCTION, - 541 "FOLLOWING": TokenType.FOLLOWING, - 542 "FOR": TokenType.FOR, - 543 "FOREIGN KEY": TokenType.FOREIGN_KEY, - 544 "FORMAT": TokenType.FORMAT, - 545 "FROM": TokenType.FROM, - 546 "GLOB": TokenType.GLOB, - 547 "GROUP BY": TokenType.GROUP_BY, - 548 "GROUPING SETS": TokenType.GROUPING_SETS, - 549 "HAVING": TokenType.HAVING, - 550 "IF": TokenType.IF, - 551 "ILIKE": TokenType.ILIKE, - 552 "IGNORE NULLS": TokenType.IGNORE_NULLS, - 553 "IN": TokenType.IN, - 554 "INDEX": TokenType.INDEX, - 555 "INET": TokenType.INET, - 556 "INNER": TokenType.INNER, - 557 "INSERT": TokenType.INSERT, - 558 "INTERVAL": TokenType.INTERVAL, - 559 "INTERSECT": TokenType.INTERSECT, - 560 "INTO": TokenType.INTO, - 561 "IS": TokenType.IS, - 562 "ISNULL": TokenType.ISNULL, - 563 "JOIN": TokenType.JOIN, - 564 "LATERAL": TokenType.LATERAL, - 565 "LAZY": TokenType.LAZY, - 566 "LEADING": TokenType.LEADING, - 567 "LEFT": TokenType.LEFT, - 568 "LIKE": TokenType.LIKE, - 569 "LIMIT": TokenType.LIMIT, - 570 "LOAD DATA": TokenType.LOAD_DATA, - 571 "LOCAL": TokenType.LOCAL, - 572 "MATERIALIZED": TokenType.MATERIALIZED, - 573 "MERGE": TokenType.MERGE, - 574 "NATURAL": TokenType.NATURAL, - 575 "NEXT": TokenType.NEXT, - 576 "NO ACTION": TokenType.NO_ACTION, - 577 "NOT": TokenType.NOT, - 578 "NOTNULL": TokenType.NOTNULL, - 579 "NULL": TokenType.NULL, - 580 "NULLS FIRST": TokenType.NULLS_FIRST, - 581 "NULLS LAST": TokenType.NULLS_LAST, - 582 "OBJECT": TokenType.OBJECT, - 583 "OFFSET": TokenType.OFFSET, - 584 "ON": TokenType.ON, - 585 "ONLY": TokenType.ONLY, - 586 "OPTIONS": TokenType.OPTIONS, - 587 "OR": TokenType.OR, - 588 "ORDER BY": TokenType.ORDER_BY, - 589 "ORDINALITY": TokenType.ORDINALITY, - 590 "OUTER": TokenType.OUTER, - 591 "OUT OF": TokenType.OUT_OF, - 592 "OVER": TokenType.OVER, - 593 "OVERLAPS": TokenType.OVERLAPS, - 594 "OVERWRITE": TokenType.OVERWRITE, - 595 "PARTITION": TokenType.PARTITION, - 596 "PARTITION BY": TokenType.PARTITION_BY, - 597 "PARTITIONED BY": TokenType.PARTITION_BY, - 598 "PARTITIONED_BY": TokenType.PARTITION_BY, - 599 "PERCENT": TokenType.PERCENT, - 600 "PIVOT": TokenType.PIVOT, - 601 "PRAGMA": TokenType.PRAGMA, - 602 "PRECEDING": TokenType.PRECEDING, - 603 "PRIMARY KEY": TokenType.PRIMARY_KEY, - 604 "PROCEDURE": TokenType.PROCEDURE, - 605 "QUALIFY": TokenType.QUALIFY, - 606 "RANGE": TokenType.RANGE, - 607 "RECURSIVE": TokenType.RECURSIVE, - 608 "REGEXP": TokenType.RLIKE, - 609 "REPLACE": TokenType.REPLACE, - 610 "RESPECT NULLS": TokenType.RESPECT_NULLS, - 611 "REFERENCES": TokenType.REFERENCES, - 612 "RIGHT": TokenType.RIGHT, - 613 "RLIKE": TokenType.RLIKE, - 614 "ROLLBACK": TokenType.ROLLBACK, - 615 "ROLLUP": TokenType.ROLLUP, - 616 "ROW": TokenType.ROW, - 617 "ROWS": TokenType.ROWS, - 618 "SCHEMA": TokenType.SCHEMA, - 619 "SEED": TokenType.SEED, - 620 "SELECT": TokenType.SELECT, - 621 "SEMI": TokenType.SEMI, - 622 "SET": TokenType.SET, - 623 "SHOW": TokenType.SHOW, - 624 "SIMILAR TO": TokenType.SIMILAR_TO, - 625 "SOME": TokenType.SOME, - 626 "SORTKEY": TokenType.SORTKEY, - 627 "SORT BY": TokenType.SORT_BY, - 628 "TABLE": TokenType.TABLE, - 629 "TABLESAMPLE": TokenType.TABLE_SAMPLE, - 630 "TEMP": TokenType.TEMPORARY, - 631 "TEMPORARY": TokenType.TEMPORARY, - 632 "THEN": TokenType.THEN, - 633 "TRUE": TokenType.TRUE, - 634 "TRAILING": TokenType.TRAILING, - 635 "UNBOUNDED": TokenType.UNBOUNDED, - 636 "UNION": TokenType.UNION, - 637 "UNLOGGED": TokenType.UNLOGGED, - 638 "UNNEST": TokenType.UNNEST, - 639 "UNPIVOT": TokenType.UNPIVOT, - 640 "UPDATE": TokenType.UPDATE, - 641 "USE": TokenType.USE, - 642 "USING": TokenType.USING, - 643 "UUID": TokenType.UUID, - 644 "VALUES": TokenType.VALUES, - 645 "VIEW": TokenType.VIEW, - 646 "VOLATILE": TokenType.VOLATILE, - 647 "WHEN": TokenType.WHEN, - 648 "WHERE": TokenType.WHERE, - 649 "WINDOW": TokenType.WINDOW, - 650 "WITH": TokenType.WITH, - 651 "WITH TIME ZONE": TokenType.WITH_TIME_ZONE, - 652 "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE, - 653 "WITHIN GROUP": TokenType.WITHIN_GROUP, - 654 "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE, - 655 "APPLY": TokenType.APPLY, - 656 "ARRAY": TokenType.ARRAY, - 657 "BIT": TokenType.BIT, - 658 "BOOL": TokenType.BOOLEAN, - 659 "BOOLEAN": TokenType.BOOLEAN, - 660 "BYTE": TokenType.TINYINT, - 661 "TINYINT": TokenType.TINYINT, - 662 "SHORT": TokenType.SMALLINT, - 663 "SMALLINT": TokenType.SMALLINT, - 664 "INT2": TokenType.SMALLINT, - 665 "INTEGER": TokenType.INT, - 666 "INT": TokenType.INT, - 667 "INT4": TokenType.INT, - 668 "LONG": TokenType.BIGINT, - 669 "BIGINT": TokenType.BIGINT, - 670 "INT8": TokenType.BIGINT, - 671 "DEC": TokenType.DECIMAL, - 672 "DECIMAL": TokenType.DECIMAL, - 673 "BIGDECIMAL": TokenType.BIGDECIMAL, - 674 "BIGNUMERIC": TokenType.BIGDECIMAL, - 675 "MAP": TokenType.MAP, - 676 "NULLABLE": TokenType.NULLABLE, - 677 "NUMBER": TokenType.DECIMAL, - 678 "NUMERIC": TokenType.DECIMAL, - 679 "FIXED": TokenType.DECIMAL, - 680 "REAL": TokenType.FLOAT, - 681 "FLOAT": TokenType.FLOAT, - 682 "FLOAT4": TokenType.FLOAT, - 683 "FLOAT8": TokenType.DOUBLE, - 684 "DOUBLE": TokenType.DOUBLE, - 685 "DOUBLE PRECISION": TokenType.DOUBLE, - 686 "JSON": TokenType.JSON, - 687 "CHAR": TokenType.CHAR, - 688 "CHARACTER": TokenType.CHAR, - 689 "NCHAR": TokenType.NCHAR, - 690 "VARCHAR": TokenType.VARCHAR, - 691 "VARCHAR2": TokenType.VARCHAR, - 692 "NVARCHAR": TokenType.NVARCHAR, - 693 "NVARCHAR2": TokenType.NVARCHAR, - 694 "STR": TokenType.TEXT, - 695 "STRING": TokenType.TEXT, - 696 "TEXT": TokenType.TEXT, - 697 "CLOB": TokenType.TEXT, - 698 "LONGVARCHAR": TokenType.TEXT, - 699 "BINARY": TokenType.BINARY, - 700 "BLOB": TokenType.VARBINARY, - 701 "BYTEA": TokenType.VARBINARY, - 702 "VARBINARY": TokenType.VARBINARY, - 703 "TIME": TokenType.TIME, - 704 "TIMESTAMP": TokenType.TIMESTAMP, - 705 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, - 706 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, - 707 "DATE": TokenType.DATE, - 708 "DATETIME": TokenType.DATETIME, - 709 "UNIQUE": TokenType.UNIQUE, - 710 "STRUCT": TokenType.STRUCT, - 711 "VARIANT": TokenType.VARIANT, - 712 "ALTER": TokenType.ALTER, - 713 "ALTER AGGREGATE": TokenType.COMMAND, - 714 "ALTER DEFAULT": TokenType.COMMAND, - 715 "ALTER DOMAIN": TokenType.COMMAND, - 716 "ALTER ROLE": TokenType.COMMAND, - 717 "ALTER RULE": TokenType.COMMAND, - 718 "ALTER SEQUENCE": TokenType.COMMAND, - 719 "ALTER TYPE": TokenType.COMMAND, - 720 "ALTER USER": TokenType.COMMAND, - 721 "ALTER VIEW": TokenType.COMMAND, - 722 "ANALYZE": TokenType.COMMAND, - 723 "CALL": TokenType.COMMAND, - 724 "COMMENT": TokenType.COMMENT, - 725 "COPY": TokenType.COMMAND, - 726 "EXPLAIN": TokenType.COMMAND, - 727 "GRANT": TokenType.COMMAND, - 728 "OPTIMIZE": TokenType.COMMAND, - 729 "PREPARE": TokenType.COMMAND, - 730 "TRUNCATE": TokenType.COMMAND, - 731 "VACUUM": TokenType.COMMAND, - 732 } - 733 - 734 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { - 735 " ": TokenType.SPACE, - 736 "\t": TokenType.SPACE, - 737 "\n": TokenType.BREAK, - 738 "\r": TokenType.BREAK, - 739 "\r\n": TokenType.BREAK, - 740 } - 741 - 742 COMMANDS = { - 743 TokenType.COMMAND, - 744 TokenType.EXECUTE, - 745 TokenType.FETCH, - 746 TokenType.SHOW, - 747 } - 748 - 749 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} - 750 - 751 # handle numeric literals like in hive (3L = BIGINT) - 752 NUMERIC_LITERALS: t.Dict[str, str] = {} - 753 ENCODE: t.Optional[str] = None + 403 return klass + 404 + 405 @staticmethod + 406 def _delimeter_list_to_dict(list: t.List[str | t.Tuple[str, str]]) -> t.Dict[str, str]: + 407 return dict((item, item) if isinstance(item, str) else (item[0], item[1]) for item in list) + 408 + 409 + 410class Tokenizer(metaclass=_Tokenizer): + 411 SINGLE_TOKENS = { + 412 "(": TokenType.L_PAREN, + 413 ")": TokenType.R_PAREN, + 414 "[": TokenType.L_BRACKET, + 415 "]": TokenType.R_BRACKET, + 416 "{": TokenType.L_BRACE, + 417 "}": TokenType.R_BRACE, + 418 "&": TokenType.AMP, + 419 "^": TokenType.CARET, + 420 ":": TokenType.COLON, + 421 ",": TokenType.COMMA, + 422 ".": TokenType.DOT, + 423 "-": TokenType.DASH, + 424 "=": TokenType.EQ, + 425 ">": TokenType.GT, + 426 "<": TokenType.LT, + 427 "%": TokenType.MOD, + 428 "!": TokenType.NOT, + 429 "|": TokenType.PIPE, + 430 "+": TokenType.PLUS, + 431 ";": TokenType.SEMICOLON, + 432 "/": TokenType.SLASH, + 433 "\\": TokenType.BACKSLASH, + 434 "*": TokenType.STAR, + 435 "~": TokenType.TILDA, + 436 "?": TokenType.PLACEHOLDER, + 437 "@": TokenType.PARAMETER, + 438 # used for breaking a var like x'y' but nothing else + 439 # the token type doesn't matter + 440 "'": TokenType.QUOTE, + 441 "`": TokenType.IDENTIFIER, + 442 '"': TokenType.IDENTIFIER, + 443 "#": TokenType.HASH, + 444 } + 445 + 446 BIT_STRINGS: t.List[str | t.Tuple[str, str]] = [] + 447 BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = [] + 448 HEX_STRINGS: t.List[str | t.Tuple[str, str]] = [] + 449 IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"'] + 450 IDENTIFIER_ESCAPES = ['"'] + 451 QUOTES: t.List[t.Tuple[str, str] | str] = ["'"] + 452 STRING_ESCAPES = ["'"] + 453 VAR_SINGLE_TOKENS: t.Set[str] = set() + 454 + 455 _COMMENTS: t.Dict[str, str] = {} + 456 _BIT_STRINGS: t.Dict[str, str] = {} + 457 _BYTE_STRINGS: t.Dict[str, str] = {} + 458 _HEX_STRINGS: t.Dict[str, str] = {} + 459 _IDENTIFIERS: t.Dict[str, str] = {} + 460 _IDENTIFIER_ESCAPES: t.Set[str] = set() + 461 _QUOTES: t.Dict[str, str] = {} + 462 _STRING_ESCAPES: t.Set[str] = set() + 463 + 464 KEYWORDS: t.Dict[t.Optional[str], TokenType] = { + 465 **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")}, + 466 **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")}, + 467 "{{+": TokenType.BLOCK_START, + 468 "{{-": TokenType.BLOCK_START, + 469 "+}}": TokenType.BLOCK_END, + 470 "-}}": TokenType.BLOCK_END, + 471 "/*+": TokenType.HINT, + 472 "==": TokenType.EQ, + 473 "::": TokenType.DCOLON, + 474 "||": TokenType.DPIPE, + 475 ">=": TokenType.GTE, + 476 "<=": TokenType.LTE, + 477 "<>": TokenType.NEQ, + 478 "!=": TokenType.NEQ, + 479 "<=>": TokenType.NULLSAFE_EQ, + 480 "->": TokenType.ARROW, + 481 "->>": TokenType.DARROW, + 482 "=>": TokenType.FARROW, + 483 "#>": TokenType.HASH_ARROW, + 484 "#>>": TokenType.DHASH_ARROW, + 485 "<->": TokenType.LR_ARROW, + 486 "&&": TokenType.DAMP, + 487 "ALL": TokenType.ALL, + 488 "ALWAYS": TokenType.ALWAYS, + 489 "AND": TokenType.AND, + 490 "ANTI": TokenType.ANTI, + 491 "ANY": TokenType.ANY, + 492 "ASC": TokenType.ASC, + 493 "AS": TokenType.ALIAS, + 494 "AT TIME ZONE": TokenType.AT_TIME_ZONE, + 495 "AUTOINCREMENT": TokenType.AUTO_INCREMENT, + 496 "AUTO_INCREMENT": TokenType.AUTO_INCREMENT, + 497 "BEGIN": TokenType.BEGIN, + 498 "BETWEEN": TokenType.BETWEEN, + 499 "BOTH": TokenType.BOTH, + 500 "BUCKET": TokenType.BUCKET, + 501 "BY DEFAULT": TokenType.BY_DEFAULT, + 502 "CACHE": TokenType.CACHE, + 503 "UNCACHE": TokenType.UNCACHE, + 504 "CASE": TokenType.CASE, + 505 "CASCADE": TokenType.CASCADE, + 506 "CHARACTER SET": TokenType.CHARACTER_SET, + 507 "CLUSTER BY": TokenType.CLUSTER_BY, + 508 "COLLATE": TokenType.COLLATE, + 509 "COLUMN": TokenType.COLUMN, + 510 "COMMIT": TokenType.COMMIT, + 511 "COMPOUND": TokenType.COMPOUND, + 512 "CONSTRAINT": TokenType.CONSTRAINT, + 513 "CREATE": TokenType.CREATE, + 514 "CROSS": TokenType.CROSS, + 515 "CUBE": TokenType.CUBE, + 516 "CURRENT_DATE": TokenType.CURRENT_DATE, + 517 "CURRENT ROW": TokenType.CURRENT_ROW, + 518 "CURRENT_TIME": TokenType.CURRENT_TIME, + 519 "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP, + 520 "CURRENT_USER": TokenType.CURRENT_USER, + 521 "DATABASE": TokenType.DATABASE, + 522 "DEFAULT": TokenType.DEFAULT, + 523 "DELETE": TokenType.DELETE, + 524 "DESC": TokenType.DESC, + 525 "DESCRIBE": TokenType.DESCRIBE, + 526 "DISTINCT": TokenType.DISTINCT, + 527 "DISTINCT FROM": TokenType.DISTINCT_FROM, + 528 "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY, + 529 "DIV": TokenType.DIV, + 530 "DROP": TokenType.DROP, + 531 "ELSE": TokenType.ELSE, + 532 "END": TokenType.END, + 533 "ESCAPE": TokenType.ESCAPE, + 534 "EXCEPT": TokenType.EXCEPT, + 535 "EXECUTE": TokenType.EXECUTE, + 536 "EXISTS": TokenType.EXISTS, + 537 "FALSE": TokenType.FALSE, + 538 "FETCH": TokenType.FETCH, + 539 "FILTER": TokenType.FILTER, + 540 "FIRST": TokenType.FIRST, + 541 "FULL": TokenType.FULL, + 542 "FUNCTION": TokenType.FUNCTION, + 543 "FOLLOWING": TokenType.FOLLOWING, + 544 "FOR": TokenType.FOR, + 545 "FOREIGN KEY": TokenType.FOREIGN_KEY, + 546 "FORMAT": TokenType.FORMAT, + 547 "FROM": TokenType.FROM, + 548 "GLOB": TokenType.GLOB, + 549 "GROUP BY": TokenType.GROUP_BY, + 550 "GROUPING SETS": TokenType.GROUPING_SETS, + 551 "HAVING": TokenType.HAVING, + 552 "IF": TokenType.IF, + 553 "ILIKE": TokenType.ILIKE, + 554 "IGNORE NULLS": TokenType.IGNORE_NULLS, + 555 "IN": TokenType.IN, + 556 "INDEX": TokenType.INDEX, + 557 "INET": TokenType.INET, + 558 "INNER": TokenType.INNER, + 559 "INSERT": TokenType.INSERT, + 560 "INTERVAL": TokenType.INTERVAL, + 561 "INTERSECT": TokenType.INTERSECT, + 562 "INTO": TokenType.INTO, + 563 "IS": TokenType.IS, + 564 "ISNULL": TokenType.ISNULL, + 565 "JOIN": TokenType.JOIN, + 566 "KEEP": TokenType.KEEP, + 567 "LATERAL": TokenType.LATERAL, + 568 "LAZY": TokenType.LAZY, + 569 "LEADING": TokenType.LEADING, + 570 "LEFT": TokenType.LEFT, + 571 "LIKE": TokenType.LIKE, + 572 "LIMIT": TokenType.LIMIT, + 573 "LOAD DATA": TokenType.LOAD_DATA, + 574 "LOCAL": TokenType.LOCAL, + 575 "MATERIALIZED": TokenType.MATERIALIZED, + 576 "MERGE": TokenType.MERGE, + 577 "NATURAL": TokenType.NATURAL, + 578 "NEXT": TokenType.NEXT, + 579 "NEXT VALUE FOR": TokenType.NEXT_VALUE_FOR, + 580 "NO ACTION": TokenType.NO_ACTION, + 581 "NOT": TokenType.NOT, + 582 "NOTNULL": TokenType.NOTNULL, + 583 "NULL": TokenType.NULL, + 584 "NULLS FIRST": TokenType.NULLS_FIRST, + 585 "NULLS LAST": TokenType.NULLS_LAST, + 586 "OBJECT": TokenType.OBJECT, + 587 "OFFSET": TokenType.OFFSET, + 588 "ON": TokenType.ON, + 589 "ONLY": TokenType.ONLY, + 590 "OPTIONS": TokenType.OPTIONS, + 591 "OR": TokenType.OR, + 592 "ORDER BY": TokenType.ORDER_BY, + 593 "ORDINALITY": TokenType.ORDINALITY, + 594 "OUTER": TokenType.OUTER, + 595 "OUT OF": TokenType.OUT_OF, + 596 "OVER": TokenType.OVER, + 597 "OVERLAPS": TokenType.OVERLAPS, + 598 "OVERWRITE": TokenType.OVERWRITE, + 599 "PARTITION": TokenType.PARTITION, + 600 "PARTITION BY": TokenType.PARTITION_BY, + 601 "PARTITIONED BY": TokenType.PARTITION_BY, + 602 "PARTITIONED_BY": TokenType.PARTITION_BY, + 603 "PERCENT": TokenType.PERCENT, + 604 "PIVOT": TokenType.PIVOT, + 605 "PRAGMA": TokenType.PRAGMA, + 606 "PRECEDING": TokenType.PRECEDING, + 607 "PRIMARY KEY": TokenType.PRIMARY_KEY, + 608 "PROCEDURE": TokenType.PROCEDURE, + 609 "QUALIFY": TokenType.QUALIFY, + 610 "RANGE": TokenType.RANGE, + 611 "RECURSIVE": TokenType.RECURSIVE, + 612 "REGEXP": TokenType.RLIKE, + 613 "REPLACE": TokenType.REPLACE, + 614 "RESPECT NULLS": TokenType.RESPECT_NULLS, + 615 "REFERENCES": TokenType.REFERENCES, + 616 "RIGHT": TokenType.RIGHT, + 617 "RLIKE": TokenType.RLIKE, + 618 "ROLLBACK": TokenType.ROLLBACK, + 619 "ROLLUP": TokenType.ROLLUP, + 620 "ROW": TokenType.ROW, + 621 "ROWS": TokenType.ROWS, + 622 "SCHEMA": TokenType.SCHEMA, + 623 "SEED": TokenType.SEED, + 624 "SELECT": TokenType.SELECT, + 625 "SEMI": TokenType.SEMI, + 626 "SET": TokenType.SET, + 627 "SHOW": TokenType.SHOW, + 628 "SIMILAR TO": TokenType.SIMILAR_TO, + 629 "SOME": TokenType.SOME, + 630 "SORTKEY": TokenType.SORTKEY, + 631 "SORT BY": TokenType.SORT_BY, + 632 "TABLE": TokenType.TABLE, + 633 "TABLESAMPLE": TokenType.TABLE_SAMPLE, + 634 "TEMP": TokenType.TEMPORARY, + 635 "TEMPORARY": TokenType.TEMPORARY, + 636 "THEN": TokenType.THEN, + 637 "TRUE": TokenType.TRUE, + 638 "TRAILING": TokenType.TRAILING, + 639 "UNBOUNDED": TokenType.UNBOUNDED, + 640 "UNION": TokenType.UNION, + 641 "UNLOGGED": TokenType.UNLOGGED, + 642 "UNNEST": TokenType.UNNEST, + 643 "UNPIVOT": TokenType.UNPIVOT, + 644 "UPDATE": TokenType.UPDATE, + 645 "USE": TokenType.USE, + 646 "USING": TokenType.USING, + 647 "UUID": TokenType.UUID, + 648 "VALUES": TokenType.VALUES, + 649 "VIEW": TokenType.VIEW, + 650 "VOLATILE": TokenType.VOLATILE, + 651 "WHEN": TokenType.WHEN, + 652 "WHERE": TokenType.WHERE, + 653 "WINDOW": TokenType.WINDOW, + 654 "WITH": TokenType.WITH, + 655 "WITH TIME ZONE": TokenType.WITH_TIME_ZONE, + 656 "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE, + 657 "WITHIN GROUP": TokenType.WITHIN_GROUP, + 658 "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE, + 659 "APPLY": TokenType.APPLY, + 660 "ARRAY": TokenType.ARRAY, + 661 "BIT": TokenType.BIT, + 662 "BOOL": TokenType.BOOLEAN, + 663 "BOOLEAN": TokenType.BOOLEAN, + 664 "BYTE": TokenType.TINYINT, + 665 "TINYINT": TokenType.TINYINT, + 666 "SHORT": TokenType.SMALLINT, + 667 "SMALLINT": TokenType.SMALLINT, + 668 "INT2": TokenType.SMALLINT, + 669 "INTEGER": TokenType.INT, + 670 "INT": TokenType.INT, + 671 "INT4": TokenType.INT, + 672 "LONG": TokenType.BIGINT, + 673 "BIGINT": TokenType.BIGINT, + 674 "INT8": TokenType.BIGINT, + 675 "DEC": TokenType.DECIMAL, + 676 "DECIMAL": TokenType.DECIMAL, + 677 "BIGDECIMAL": TokenType.BIGDECIMAL, + 678 "BIGNUMERIC": TokenType.BIGDECIMAL, + 679 "MAP": TokenType.MAP, + 680 "NULLABLE": TokenType.NULLABLE, + 681 "NUMBER": TokenType.DECIMAL, + 682 "NUMERIC": TokenType.DECIMAL, + 683 "FIXED": TokenType.DECIMAL, + 684 "REAL": TokenType.FLOAT, + 685 "FLOAT": TokenType.FLOAT, + 686 "FLOAT4": TokenType.FLOAT, + 687 "FLOAT8": TokenType.DOUBLE, + 688 "DOUBLE": TokenType.DOUBLE, + 689 "DOUBLE PRECISION": TokenType.DOUBLE, + 690 "JSON": TokenType.JSON, + 691 "CHAR": TokenType.CHAR, + 692 "CHARACTER": TokenType.CHAR, + 693 "NCHAR": TokenType.NCHAR, + 694 "VARCHAR": TokenType.VARCHAR, + 695 "VARCHAR2": TokenType.VARCHAR, + 696 "NVARCHAR": TokenType.NVARCHAR, + 697 "NVARCHAR2": TokenType.NVARCHAR, + 698 "STR": TokenType.TEXT, + 699 "STRING": TokenType.TEXT, + 700 "TEXT": TokenType.TEXT, + 701 "CLOB": TokenType.TEXT, + 702 "LONGVARCHAR": TokenType.TEXT, + 703 "BINARY": TokenType.BINARY, + 704 "BLOB": TokenType.VARBINARY, + 705 "BYTEA": TokenType.VARBINARY, + 706 "VARBINARY": TokenType.VARBINARY, + 707 "TIME": TokenType.TIME, + 708 "TIMESTAMP": TokenType.TIMESTAMP, + 709 "TIMESTAMPTZ": TokenType.TIMESTAMPTZ, + 710 "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ, + 711 "DATE": TokenType.DATE, + 712 "DATETIME": TokenType.DATETIME, + 713 "UNIQUE": TokenType.UNIQUE, + 714 "STRUCT": TokenType.STRUCT, + 715 "VARIANT": TokenType.VARIANT, + 716 "ALTER": TokenType.ALTER, + 717 "ALTER AGGREGATE": TokenType.COMMAND, + 718 "ALTER DEFAULT": TokenType.COMMAND, + 719 "ALTER DOMAIN": TokenType.COMMAND, + 720 "ALTER ROLE": TokenType.COMMAND, + 721 "ALTER RULE": TokenType.COMMAND, + 722 "ALTER SEQUENCE": TokenType.COMMAND, + 723 "ALTER TYPE": TokenType.COMMAND, + 724 "ALTER USER": TokenType.COMMAND, + 725 "ALTER VIEW": TokenType.COMMAND, + 726 "ANALYZE": TokenType.COMMAND, + 727 "CALL": TokenType.COMMAND, + 728 "COMMENT": TokenType.COMMENT, + 729 "COPY": TokenType.COMMAND, + 730 "EXPLAIN": TokenType.COMMAND, + 731 "GRANT": TokenType.COMMAND, + 732 "OPTIMIZE": TokenType.COMMAND, + 733 "PREPARE": TokenType.COMMAND, + 734 "TRUNCATE": TokenType.COMMAND, + 735 "VACUUM": TokenType.COMMAND, + 736 } + 737 + 738 WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = { + 739 " ": TokenType.SPACE, + 740 "\t": TokenType.SPACE, + 741 "\n": TokenType.BREAK, + 742 "\r": TokenType.BREAK, + 743 "\r\n": TokenType.BREAK, + 744 } + 745 + 746 COMMANDS = { + 747 TokenType.COMMAND, + 748 TokenType.EXECUTE, + 749 TokenType.FETCH, + 750 TokenType.SHOW, + 751 } + 752 + 753 COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN} 754 - 755 COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")] - 756 KEYWORD_TRIE: t.Dict = {} # autofilled - 757 - 758 IDENTIFIER_CAN_START_WITH_DIGIT = False - 759 - 760 __slots__ = ( - 761 "sql", - 762 "size", - 763 "tokens", - 764 "_start", - 765 "_current", - 766 "_line", - 767 "_col", - 768 "_comments", - 769 "_char", - 770 "_end", - 771 "_peek", - 772 "_prev_token_line", - 773 "_prev_token_comments", - 774 "_prev_token_type", - 775 ) - 776 - 777 def __init__(self) -> None: - 778 self.reset() - 779 - 780 def reset(self) -> None: - 781 self.sql = "" - 782 self.size = 0 - 783 self.tokens: t.List[Token] = [] - 784 self._start = 0 - 785 self._current = 0 - 786 self._line = 1 - 787 self._col = 1 - 788 self._comments: t.List[str] = [] - 789 - 790 self._char = "" - 791 self._end = False - 792 self._peek = "" - 793 self._prev_token_line = -1 - 794 self._prev_token_comments: t.List[str] = [] - 795 self._prev_token_type: t.Optional[TokenType] = None - 796 - 797 def tokenize(self, sql: str) -> t.List[Token]: - 798 """Returns a list of tokens corresponding to the SQL string `sql`.""" - 799 self.reset() - 800 self.sql = sql - 801 self.size = len(sql) - 802 try: - 803 self._scan() - 804 except Exception as e: - 805 start = self._current - 50 - 806 end = self._current + 50 - 807 start = start if start > 0 else 0 - 808 end = end if end < self.size else self.size - 1 - 809 context = self.sql[start:end] - 810 raise ValueError(f"Error tokenizing '{context}'") from e - 811 - 812 return self.tokens - 813 - 814 def _scan(self, until: t.Optional[t.Callable] = None) -> None: - 815 while self.size and not self._end: - 816 self._start = self._current - 817 self._advance() - 818 - 819 if self._char is None: - 820 break - 821 - 822 if self._char not in self.WHITE_SPACE: - 823 if self._char.isdigit(): - 824 self._scan_number() - 825 elif self._char in self._IDENTIFIERS: - 826 self._scan_identifier(self._IDENTIFIERS[self._char]) - 827 else: - 828 self._scan_keywords() - 829 - 830 if until and until(): - 831 break - 832 - 833 if self.tokens: - 834 self.tokens[-1].comments.extend(self._comments) - 835 - 836 def _chars(self, size: int) -> str: - 837 if size == 1: - 838 return self._char - 839 start = self._current - 1 - 840 end = start + size - 841 if end <= self.size: - 842 return self.sql[start:end] - 843 return "" - 844 - 845 def _advance(self, i: int = 1) -> None: - 846 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: - 847 self._col = 1 - 848 self._line += 1 - 849 else: - 850 self._col += i - 851 - 852 self._current += i - 853 self._end = self._current >= self.size - 854 self._char = self.sql[self._current - 1] - 855 self._peek = "" if self._end else self.sql[self._current] - 856 - 857 @property - 858 def _text(self) -> str: - 859 return self.sql[self._start : self._current] + 755 # handle numeric literals like in hive (3L = BIGINT) + 756 NUMERIC_LITERALS: t.Dict[str, str] = {} + 757 ENCODE: t.Optional[str] = None + 758 + 759 COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")] + 760 KEYWORD_TRIE: t.Dict = {} # autofilled + 761 + 762 IDENTIFIER_CAN_START_WITH_DIGIT = False + 763 + 764 __slots__ = ( + 765 "sql", + 766 "size", + 767 "tokens", + 768 "_start", + 769 "_current", + 770 "_line", + 771 "_col", + 772 "_comments", + 773 "_char", + 774 "_end", + 775 "_peek", + 776 "_prev_token_line", + 777 "_prev_token_comments", + 778 "_prev_token_type", + 779 ) + 780 + 781 def __init__(self) -> None: + 782 self.reset() + 783 + 784 def reset(self) -> None: + 785 self.sql = "" + 786 self.size = 0 + 787 self.tokens: t.List[Token] = [] + 788 self._start = 0 + 789 self._current = 0 + 790 self._line = 1 + 791 self._col = 1 + 792 self._comments: t.List[str] = [] + 793 + 794 self._char = "" + 795 self._end = False + 796 self._peek = "" + 797 self._prev_token_line = -1 + 798 self._prev_token_comments: t.List[str] = [] + 799 self._prev_token_type: t.Optional[TokenType] = None + 800 + 801 def tokenize(self, sql: str) -> t.List[Token]: + 802 """Returns a list of tokens corresponding to the SQL string `sql`.""" + 803 self.reset() + 804 self.sql = sql + 805 self.size = len(sql) + 806 try: + 807 self._scan() + 808 except Exception as e: + 809 start = self._current - 50 + 810 end = self._current + 50 + 811 start = start if start > 0 else 0 + 812 end = end if end < self.size else self.size - 1 + 813 context = self.sql[start:end] + 814 raise ValueError(f"Error tokenizing '{context}'") from e + 815 + 816 return self.tokens + 817 + 818 def _scan(self, until: t.Optional[t.Callable] = None) -> None: + 819 while self.size and not self._end: + 820 self._start = self._current + 821 self._advance() + 822 + 823 if self._char is None: + 824 break + 825 + 826 if self._char not in self.WHITE_SPACE: + 827 if self._char.isdigit(): + 828 self._scan_number() + 829 elif self._char in self._IDENTIFIERS: + 830 self._scan_identifier(self._IDENTIFIERS[self._char]) + 831 else: + 832 self._scan_keywords() + 833 + 834 if until and until(): + 835 break + 836 + 837 if self.tokens: + 838 self.tokens[-1].comments.extend(self._comments) + 839 + 840 def _chars(self, size: int) -> str: + 841 if size == 1: + 842 return self._char + 843 start = self._current - 1 + 844 end = start + size + 845 if end <= self.size: + 846 return self.sql[start:end] + 847 return "" + 848 + 849 def _advance(self, i: int = 1) -> None: + 850 if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: + 851 self._col = 1 + 852 self._line += 1 + 853 else: + 854 self._col += i + 855 + 856 self._current += i + 857 self._end = self._current >= self.size + 858 self._char = self.sql[self._current - 1] + 859 self._peek = "" if self._end else self.sql[self._current] 860 - 861 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: - 862 self._prev_token_line = self._line - 863 self._prev_token_comments = self._comments - 864 self._prev_token_type = token_type - 865 self.tokens.append( - 866 Token( - 867 token_type, - 868 self._text if text is None else text, - 869 self._line, - 870 self._col, - 871 self._current, - 872 self._comments, - 873 ) - 874 ) - 875 self._comments = [] - 876 - 877 # If we have either a semicolon or a begin token before the command's token, we'll parse - 878 # whatever follows the command's token as a string - 879 if ( - 880 token_type in self.COMMANDS - 881 and self._peek != ";" - 882 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) - 883 ): - 884 start = self._current - 885 tokens = len(self.tokens) - 886 self._scan(lambda: self._peek == ";") - 887 self.tokens = self.tokens[:tokens] - 888 text = self.sql[start : self._current].strip() - 889 if text: - 890 self._add(TokenType.STRING, text) - 891 - 892 def _scan_keywords(self) -> None: - 893 size = 0 - 894 word = None - 895 chars = self._text - 896 char = chars - 897 prev_space = False - 898 skip = False - 899 trie = self.KEYWORD_TRIE - 900 single_token = char in self.SINGLE_TOKENS - 901 - 902 while chars: - 903 if skip: - 904 result = 1 - 905 else: - 906 result, trie = in_trie(trie, char.upper()) - 907 - 908 if result == 0: - 909 break - 910 if result == 2: - 911 word = chars - 912 size += 1 - 913 end = self._current - 1 + size - 914 - 915 if end < self.size: - 916 char = self.sql[end] - 917 single_token = single_token or char in self.SINGLE_TOKENS - 918 is_space = char in self.WHITE_SPACE - 919 - 920 if not is_space or not prev_space: - 921 if is_space: - 922 char = " " - 923 chars += char - 924 prev_space = is_space - 925 skip = False - 926 else: - 927 skip = True - 928 else: - 929 chars = " " - 930 - 931 word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word - 932 - 933 if not word: - 934 if self._char in self.SINGLE_TOKENS: - 935 self._add(self.SINGLE_TOKENS[self._char], text=self._char) - 936 return - 937 self._scan_var() - 938 return - 939 - 940 if self._scan_string(word): - 941 return - 942 if self._scan_formatted_string(word): - 943 return - 944 if self._scan_comment(word): + 861 @property + 862 def _text(self) -> str: + 863 return self.sql[self._start : self._current] + 864 + 865 def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: + 866 self._prev_token_line = self._line + 867 self._prev_token_comments = self._comments + 868 self._prev_token_type = token_type + 869 self.tokens.append( + 870 Token( + 871 token_type, + 872 self._text if text is None else text, + 873 self._line, + 874 self._col, + 875 self._current, + 876 self._comments, + 877 ) + 878 ) + 879 self._comments = [] + 880 + 881 # If we have either a semicolon or a begin token before the command's token, we'll parse + 882 # whatever follows the command's token as a string + 883 if ( + 884 token_type in self.COMMANDS + 885 and self._peek != ";" + 886 and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS) + 887 ): + 888 start = self._current + 889 tokens = len(self.tokens) + 890 self._scan(lambda: self._peek == ";") + 891 self.tokens = self.tokens[:tokens] + 892 text = self.sql[start : self._current].strip() + 893 if text: + 894 self._add(TokenType.STRING, text) + 895 + 896 def _scan_keywords(self) -> None: + 897 size = 0 + 898 word = None + 899 chars = self._text + 900 char = chars + 901 prev_space = False + 902 skip = False + 903 trie = self.KEYWORD_TRIE + 904 single_token = char in self.SINGLE_TOKENS + 905 + 906 while chars: + 907 if skip: + 908 result = 1 + 909 else: + 910 result, trie = in_trie(trie, char.upper()) + 911 + 912 if result == 0: + 913 break + 914 if result == 2: + 915 word = chars + 916 size += 1 + 917 end = self._current - 1 + size + 918 + 919 if end < self.size: + 920 char = self.sql[end] + 921 single_token = single_token or char in self.SINGLE_TOKENS + 922 is_space = char in self.WHITE_SPACE + 923 + 924 if not is_space or not prev_space: + 925 if is_space: + 926 char = " " + 927 chars += char + 928 prev_space = is_space + 929 skip = False + 930 else: + 931 skip = True + 932 else: + 933 chars = " " + 934 + 935 word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word + 936 + 937 if not word: + 938 if self._char in self.SINGLE_TOKENS: + 939 self._add(self.SINGLE_TOKENS[self._char], text=self._char) + 940 return + 941 self._scan_var() + 942 return + 943 + 944 if self._scan_string(word): 945 return - 946 - 947 self._advance(size - 1) - 948 word = word.upper() - 949 self._add(self.KEYWORDS[word], text=word) + 946 if self._scan_formatted_string(word): + 947 return + 948 if self._scan_comment(word): + 949 return 950 - 951 def _scan_comment(self, comment_start: str) -> bool: - 952 if comment_start not in self._COMMENTS: - 953 return False + 951 self._advance(size - 1) + 952 word = word.upper() + 953 self._add(self.KEYWORDS[word], text=word) 954 - 955 comment_start_line = self._line - 956 comment_start_size = len(comment_start) - 957 comment_end = self._COMMENTS[comment_start] + 955 def _scan_comment(self, comment_start: str) -> bool: + 956 if comment_start not in self._COMMENTS: + 957 return False 958 - 959 if comment_end: - 960 # Skip the comment's start delimiter - 961 self._advance(comment_start_size) + 959 comment_start_line = self._line + 960 comment_start_size = len(comment_start) + 961 comment_end = self._COMMENTS[comment_start] 962 - 963 comment_end_size = len(comment_end) - 964 while not self._end and self._chars(comment_end_size) != comment_end: - 965 self._advance() + 963 if comment_end: + 964 # Skip the comment's start delimiter + 965 self._advance(comment_start_size) 966 - 967 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) - 968 self._advance(comment_end_size - 1) - 969 else: - 970 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: - 971 self._advance() - 972 self._comments.append(self._text[comment_start_size:]) - 973 - 974 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. - 975 # Multiple consecutive comments are preserved by appending them to the current comments list. - 976 if comment_start_line == self._prev_token_line: - 977 self.tokens[-1].comments.extend(self._comments) - 978 self._comments = [] - 979 self._prev_token_line = self._line - 980 - 981 return True - 982 - 983 def _scan_number(self) -> None: - 984 if self._char == "0": - 985 peek = self._peek.upper() - 986 if peek == "B": - 987 return self._scan_bits() - 988 elif peek == "X": - 989 return self._scan_hex() - 990 - 991 decimal = False - 992 scientific = 0 - 993 - 994 while True: - 995 if self._peek.isdigit(): - 996 self._advance() - 997 elif self._peek == "." and not decimal: - 998 decimal = True - 999 self._advance() -1000 elif self._peek in ("-", "+") and scientific == 1: -1001 scientific += 1 -1002 self._advance() -1003 elif self._peek.upper() == "E" and not scientific: -1004 scientific += 1 -1005 self._advance() -1006 elif self._peek.isidentifier(): -1007 number_text = self._text -1008 literal = "" -1009 -1010 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: -1011 literal += self._peek.upper() -1012 self._advance() + 967 comment_end_size = len(comment_end) + 968 while not self._end and self._chars(comment_end_size) != comment_end: + 969 self._advance() + 970 + 971 self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) + 972 self._advance(comment_end_size - 1) + 973 else: + 974 while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: + 975 self._advance() + 976 self._comments.append(self._text[comment_start_size:]) + 977 + 978 # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. + 979 # Multiple consecutive comments are preserved by appending them to the current comments list. + 980 if comment_start_line == self._prev_token_line: + 981 self.tokens[-1].comments.extend(self._comments) + 982 self._comments = [] + 983 self._prev_token_line = self._line + 984 + 985 return True + 986 + 987 def _scan_number(self) -> None: + 988 if self._char == "0": + 989 peek = self._peek.upper() + 990 if peek == "B": + 991 return self._scan_bits() + 992 elif peek == "X": + 993 return self._scan_hex() + 994 + 995 decimal = False + 996 scientific = 0 + 997 + 998 while True: + 999 if self._peek.isdigit(): +1000 self._advance() +1001 elif self._peek == "." and not decimal: +1002 decimal = True +1003 self._advance() +1004 elif self._peek in ("-", "+") and scientific == 1: +1005 scientific += 1 +1006 self._advance() +1007 elif self._peek.upper() == "E" and not scientific: +1008 scientific += 1 +1009 self._advance() +1010 elif self._peek.isidentifier(): +1011 number_text = self._text +1012 literal = "" 1013 -1014 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) -1015 -1016 if token_type: -1017 self._add(TokenType.NUMBER, number_text) -1018 self._add(TokenType.DCOLON, "::") -1019 return self._add(token_type, literal) -1020 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: -1021 return self._add(TokenType.VAR) -1022 -1023 self._add(TokenType.NUMBER, number_text) -1024 return self._advance(-len(literal)) -1025 else: -1026 return self._add(TokenType.NUMBER) -1027 -1028 def _scan_bits(self) -> None: -1029 self._advance() -1030 value = self._extract_value() -1031 try: -1032 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") -1033 except ValueError: -1034 self._add(TokenType.IDENTIFIER) -1035 -1036 def _scan_hex(self) -> None: -1037 self._advance() -1038 value = self._extract_value() -1039 try: -1040 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") -1041 except ValueError: -1042 self._add(TokenType.IDENTIFIER) -1043 -1044 def _extract_value(self) -> str: -1045 while True: -1046 char = self._peek.strip() -1047 if char and char not in self.SINGLE_TOKENS: -1048 self._advance() -1049 else: -1050 break -1051 -1052 return self._text -1053 -1054 def _scan_string(self, quote: str) -> bool: -1055 quote_end = self._QUOTES.get(quote) -1056 if quote_end is None: -1057 return False -1058 -1059 self._advance(len(quote)) -1060 text = self._extract_string(quote_end) -1061 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text -1062 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) -1063 return True -1064 -1065 # X'1234, b'0110', E'\\\\\' etc. -1066 def _scan_formatted_string(self, string_start: str) -> bool: -1067 if string_start in self._HEX_STRINGS: -1068 delimiters = self._HEX_STRINGS -1069 token_type = TokenType.HEX_STRING -1070 base = 16 -1071 elif string_start in self._BIT_STRINGS: -1072 delimiters = self._BIT_STRINGS -1073 token_type = TokenType.BIT_STRING -1074 base = 2 -1075 elif string_start in self._BYTE_STRINGS: -1076 delimiters = self._BYTE_STRINGS -1077 token_type = TokenType.BYTE_STRING -1078 base = None -1079 else: -1080 return False -1081 -1082 self._advance(len(string_start)) -1083 string_end = delimiters[string_start] -1084 text = self._extract_string(string_end) +1014 while self._peek.strip() and self._peek not in self.SINGLE_TOKENS: +1015 literal += self._peek.upper() +1016 self._advance() +1017 +1018 token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal)) +1019 +1020 if token_type: +1021 self._add(TokenType.NUMBER, number_text) +1022 self._add(TokenType.DCOLON, "::") +1023 return self._add(token_type, literal) +1024 elif self.IDENTIFIER_CAN_START_WITH_DIGIT: +1025 return self._add(TokenType.VAR) +1026 +1027 self._add(TokenType.NUMBER, number_text) +1028 return self._advance(-len(literal)) +1029 else: +1030 return self._add(TokenType.NUMBER) +1031 +1032 def _scan_bits(self) -> None: +1033 self._advance() +1034 value = self._extract_value() +1035 try: +1036 self._add(TokenType.BIT_STRING, f"{int(value, 2)}") +1037 except ValueError: +1038 self._add(TokenType.IDENTIFIER) +1039 +1040 def _scan_hex(self) -> None: +1041 self._advance() +1042 value = self._extract_value() +1043 try: +1044 self._add(TokenType.HEX_STRING, f"{int(value, 16)}") +1045 except ValueError: +1046 self._add(TokenType.IDENTIFIER) +1047 +1048 def _extract_value(self) -> str: +1049 while True: +1050 char = self._peek.strip() +1051 if char and char not in self.SINGLE_TOKENS: +1052 self._advance() +1053 else: +1054 break +1055 +1056 return self._text +1057 +1058 def _scan_string(self, quote: str) -> bool: +1059 quote_end = self._QUOTES.get(quote) +1060 if quote_end is None: +1061 return False +1062 +1063 self._advance(len(quote)) +1064 text = self._extract_string(quote_end) +1065 text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text +1066 self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) +1067 return True +1068 +1069 # X'1234, b'0110', E'\\\\\' etc. +1070 def _scan_formatted_string(self, string_start: str) -> bool: +1071 if string_start in self._HEX_STRINGS: +1072 delimiters = self._HEX_STRINGS +1073 token_type = TokenType.HEX_STRING +1074 base = 16 +1075 elif string_start in self._BIT_STRINGS: +1076 delimiters = self._BIT_STRINGS +1077 token_type = TokenType.BIT_STRING +1078 base = 2 +1079 elif string_start in self._BYTE_STRINGS: +1080 delimiters = self._BYTE_STRINGS +1081 token_type = TokenType.BYTE_STRING +1082 base = None +1083 else: +1084 return False 1085 -1086 if base is None: -1087 self._add(token_type, text) -1088 else: -1089 try: -1090 self._add(token_type, f"{int(text, base)}") -1091 except: -1092 raise RuntimeError( -1093 f"Numeric string contains invalid characters from {self._line}:{self._start}" -1094 ) -1095 -1096 return True -1097 -1098 def _scan_identifier(self, identifier_end: str) -> None: -1099 text = "" -1100 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES +1086 self._advance(len(string_start)) +1087 string_end = delimiters[string_start] +1088 text = self._extract_string(string_end) +1089 +1090 if base is None: +1091 self._add(token_type, text) +1092 else: +1093 try: +1094 self._add(token_type, f"{int(text, base)}") +1095 except: +1096 raise RuntimeError( +1097 f"Numeric string contains invalid characters from {self._line}:{self._start}" +1098 ) +1099 +1100 return True 1101 -1102 while True: -1103 if self._end: -1104 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") +1102 def _scan_identifier(self, identifier_end: str) -> None: +1103 text = "" +1104 identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES 1105 -1106 self._advance() -1107 if self._char == identifier_end: -1108 if identifier_end_is_escape and self._peek == identifier_end: -1109 text += identifier_end -1110 self._advance() -1111 continue -1112 -1113 break -1114 -1115 text += self._char +1106 while True: +1107 if self._end: +1108 raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") +1109 +1110 self._advance() +1111 if self._char == identifier_end: +1112 if identifier_end_is_escape and self._peek == identifier_end: +1113 text += identifier_end +1114 self._advance() +1115 continue 1116 -1117 self._add(TokenType.IDENTIFIER, text) +1117 break 1118 -1119 def _scan_var(self) -> None: -1120 while True: -1121 char = self._peek.strip() -1122 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): -1123 self._advance() -1124 else: -1125 break -1126 self._add( -1127 TokenType.VAR -1128 if self._prev_token_type == TokenType.PARAMETER -1129 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) -1130 ) -1131 -1132 def _extract_string(self, delimiter: str) -> str: -1133 text = "" -1134 delim_size = len(delimiter) +1119 text += self._char +1120 +1121 self._add(TokenType.IDENTIFIER, text) +1122 +1123 def _scan_var(self) -> None: +1124 while True: +1125 char = self._peek.strip() +1126 if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): +1127 self._advance() +1128 else: +1129 break +1130 self._add( +1131 TokenType.VAR +1132 if self._prev_token_type == TokenType.PARAMETER +1133 else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) +1134 ) 1135 -1136 while True: -1137 if self._char in self._STRING_ESCAPES and ( -1138 self._peek == delimiter or self._peek in self._STRING_ESCAPES -1139 ): -1140 if self._peek == delimiter: -1141 text += self._peek -1142 else: -1143 text += self._char + self._peek -1144 -1145 if self._current + 1 < self.size: -1146 self._advance(2) -1147 else: -1148 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") -1149 else: -1150 if self._chars(delim_size) == delimiter: -1151 if delim_size > 1: -1152 self._advance(delim_size - 1) -1153 break -1154 -1155 if self._end: -1156 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") -1157 text += self._char -1158 self._advance() -1159 -1160 return text +1136 def _extract_string(self, delimiter: str) -> str: +1137 text = "" +1138 delim_size = len(delimiter) +1139 +1140 while True: +1141 if self._char in self._STRING_ESCAPES and ( +1142 self._peek == delimiter or self._peek in self._STRING_ESCAPES +1143 ): +1144 if self._peek == delimiter: +1145 text += self._peek +1146 else: +1147 text += self._char + self._peek +1148 +1149 if self._current + 1 < self.size: +1150 self._advance(2) +1151 else: +1152 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}") +1153 else: +1154 if self._chars(delim_size) == delimiter: +1155 if delim_size > 1: +1156 self._advance(delim_size - 1) +1157 break +1158 +1159 if self._end: +1160 raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") +1161 text += self._char +1162 self._advance() +1163 +1164 return text
    @@ -2372,104 +2382,106 @@ 216 ISNULL = auto() 217 JOIN = auto() 218 JOIN_MARKER = auto() -219 LANGUAGE = auto() -220 LATERAL = auto() -221 LAZY = auto() -222 LEADING = auto() -223 LEFT = auto() -224 LIKE = auto() -225 LIKE_ANY = auto() -226 LIMIT = auto() -227 LOAD_DATA = auto() -228 LOCAL = auto() -229 MAP = auto() -230 MATCH_RECOGNIZE = auto() -231 MATERIALIZED = auto() -232 MERGE = auto() -233 MOD = auto() -234 NATURAL = auto() -235 NEXT = auto() -236 NO_ACTION = auto() -237 NOTNULL = auto() -238 NULL = auto() -239 NULLS_FIRST = auto() -240 NULLS_LAST = auto() -241 OFFSET = auto() -242 ON = auto() -243 ONLY = auto() -244 OPTIONS = auto() -245 ORDER_BY = auto() -246 ORDERED = auto() -247 ORDINALITY = auto() -248 OUTER = auto() -249 OUT_OF = auto() -250 OVER = auto() -251 OVERLAPS = auto() -252 OVERWRITE = auto() -253 PARTITION = auto() -254 PARTITION_BY = auto() -255 PERCENT = auto() -256 PIVOT = auto() -257 PLACEHOLDER = auto() -258 PRAGMA = auto() -259 PRECEDING = auto() -260 PRIMARY_KEY = auto() -261 PROCEDURE = auto() -262 PROPERTIES = auto() -263 PSEUDO_TYPE = auto() -264 QUALIFY = auto() -265 QUOTE = auto() -266 RANGE = auto() -267 RECURSIVE = auto() -268 REPLACE = auto() -269 RESPECT_NULLS = auto() -270 RETURNING = auto() -271 REFERENCES = auto() -272 RIGHT = auto() -273 RLIKE = auto() -274 ROLLBACK = auto() -275 ROLLUP = auto() -276 ROW = auto() -277 ROWS = auto() -278 SEED = auto() -279 SELECT = auto() -280 SEMI = auto() -281 SEPARATOR = auto() -282 SERDE_PROPERTIES = auto() -283 SET = auto() -284 SHOW = auto() -285 SIMILAR_TO = auto() -286 SOME = auto() -287 SORTKEY = auto() -288 SORT_BY = auto() -289 STRUCT = auto() -290 TABLE_SAMPLE = auto() -291 TEMPORARY = auto() -292 TOP = auto() -293 THEN = auto() -294 TRAILING = auto() -295 TRUE = auto() -296 UNBOUNDED = auto() -297 UNCACHE = auto() -298 UNION = auto() -299 UNLOGGED = auto() -300 UNNEST = auto() -301 UNPIVOT = auto() -302 UPDATE = auto() -303 USE = auto() -304 USING = auto() -305 VALUES = auto() -306 VIEW = auto() -307 VOLATILE = auto() -308 WHEN = auto() -309 WHERE = auto() -310 WINDOW = auto() -311 WITH = auto() -312 WITH_TIME_ZONE = auto() -313 WITH_LOCAL_TIME_ZONE = auto() -314 WITHIN_GROUP = auto() -315 WITHOUT_TIME_ZONE = auto() -316 UNIQUE = auto() +219 KEEP = auto() +220 LANGUAGE = auto() +221 LATERAL = auto() +222 LAZY = auto() +223 LEADING = auto() +224 LEFT = auto() +225 LIKE = auto() +226 LIKE_ANY = auto() +227 LIMIT = auto() +228 LOAD_DATA = auto() +229 LOCAL = auto() +230 MAP = auto() +231 MATCH_RECOGNIZE = auto() +232 MATERIALIZED = auto() +233 MERGE = auto() +234 MOD = auto() +235 NATURAL = auto() +236 NEXT = auto() +237 NEXT_VALUE_FOR = auto() +238 NO_ACTION = auto() +239 NOTNULL = auto() +240 NULL = auto() +241 NULLS_FIRST = auto() +242 NULLS_LAST = auto() +243 OFFSET = auto() +244 ON = auto() +245 ONLY = auto() +246 OPTIONS = auto() +247 ORDER_BY = auto() +248 ORDERED = auto() +249 ORDINALITY = auto() +250 OUTER = auto() +251 OUT_OF = auto() +252 OVER = auto() +253 OVERLAPS = auto() +254 OVERWRITE = auto() +255 PARTITION = auto() +256 PARTITION_BY = auto() +257 PERCENT = auto() +258 PIVOT = auto() +259 PLACEHOLDER = auto() +260 PRAGMA = auto() +261 PRECEDING = auto() +262 PRIMARY_KEY = auto() +263 PROCEDURE = auto() +264 PROPERTIES = auto() +265 PSEUDO_TYPE = auto() +266 QUALIFY = auto() +267 QUOTE = auto() +268 RANGE = auto() +269 RECURSIVE = auto() +270 REPLACE = auto() +271 RESPECT_NULLS = auto() +272 RETURNING = auto() +273 REFERENCES = auto() +274 RIGHT = auto() +275 RLIKE = auto() +276 ROLLBACK = auto() +277 ROLLUP = auto() +278 ROW = auto() +279 ROWS = auto() +280 SEED = auto() +281 SELECT = auto() +282 SEMI = auto() +283 SEPARATOR = auto() +284 SERDE_PROPERTIES = auto() +285 SET = auto() +286 SHOW = auto() +287 SIMILAR_TO = auto() +288 SOME = auto() +289 SORTKEY = auto() +290 SORT_BY = auto() +291 STRUCT = auto() +292 TABLE_SAMPLE = auto() +293 TEMPORARY = auto() +294 TOP = auto() +295 THEN = auto() +296 TRAILING = auto() +297 TRUE = auto() +298 UNBOUNDED = auto() +299 UNCACHE = auto() +300 UNION = auto() +301 UNLOGGED = auto() +302 UNNEST = auto() +303 UNPIVOT = auto() +304 UPDATE = auto() +305 USE = auto() +306 USING = auto() +307 VALUES = auto() +308 VIEW = auto() +309 VOLATILE = auto() +310 WHEN = auto() +311 WHERE = auto() +312 WINDOW = auto() +313 WITH = auto() +314 WITH_TIME_ZONE = auto() +315 WITH_LOCAL_TIME_ZONE = auto() +316 WITHIN_GROUP = auto() +317 WITHOUT_TIME_ZONE = auto() +318 UNIQUE = auto() @@ -4876,6 +4888,18 @@ + +
    +
    + KEEP = +<TokenType.KEEP: 'KEEP'> + + +
    + + + +
    @@ -5080,6 +5104,18 @@ +
    +
    +
    + NEXT_VALUE_FOR = +<TokenType.NEXT_VALUE_FOR: 'NEXT_VALUE_FOR'> + + +
    + + + +
    @@ -6075,54 +6111,54 @@
    -
    319class Token:
    -320    __slots__ = ("token_type", "text", "line", "col", "end", "comments")
    -321
    -322    @classmethod
    -323    def number(cls, number: int) -> Token:
    -324        """Returns a NUMBER token with `number` as its text."""
    -325        return cls(TokenType.NUMBER, str(number))
    -326
    -327    @classmethod
    -328    def string(cls, string: str) -> Token:
    -329        """Returns a STRING token with `string` as its text."""
    -330        return cls(TokenType.STRING, string)
    -331
    -332    @classmethod
    -333    def identifier(cls, identifier: str) -> Token:
    -334        """Returns an IDENTIFIER token with `identifier` as its text."""
    -335        return cls(TokenType.IDENTIFIER, identifier)
    -336
    -337    @classmethod
    -338    def var(cls, var: str) -> Token:
    -339        """Returns an VAR token with `var` as its text."""
    -340        return cls(TokenType.VAR, var)
    -341
    -342    def __init__(
    -343        self,
    -344        token_type: TokenType,
    -345        text: str,
    -346        line: int = 1,
    -347        col: int = 1,
    -348        end: int = 0,
    -349        comments: t.List[str] = [],
    -350    ) -> None:
    -351        self.token_type = token_type
    -352        self.text = text
    -353        self.line = line
    -354        size = len(text)
    -355        self.col = col
    -356        self.end = end if end else size
    -357        self.comments = comments
    -358
    -359    @property
    -360    def start(self) -> int:
    -361        """Returns the start of the token."""
    -362        return self.end - len(self.text)
    -363
    -364    def __repr__(self) -> str:
    -365        attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__)
    -366        return f"<Token {attributes}>"
    +            
    321class Token:
    +322    __slots__ = ("token_type", "text", "line", "col", "end", "comments")
    +323
    +324    @classmethod
    +325    def number(cls, number: int) -> Token:
    +326        """Returns a NUMBER token with `number` as its text."""
    +327        return cls(TokenType.NUMBER, str(number))
    +328
    +329    @classmethod
    +330    def string(cls, string: str) -> Token:
    +331        """Returns a STRING token with `string` as its text."""
    +332        return cls(TokenType.STRING, string)
    +333
    +334    @classmethod
    +335    def identifier(cls, identifier: str) -> Token:
    +336        """Returns an IDENTIFIER token with `identifier` as its text."""
    +337        return cls(TokenType.IDENTIFIER, identifier)
    +338
    +339    @classmethod
    +340    def var(cls, var: str) -> Token:
    +341        """Returns an VAR token with `var` as its text."""
    +342        return cls(TokenType.VAR, var)
    +343
    +344    def __init__(
    +345        self,
    +346        token_type: TokenType,
    +347        text: str,
    +348        line: int = 1,
    +349        col: int = 1,
    +350        end: int = 0,
    +351        comments: t.List[str] = [],
    +352    ) -> None:
    +353        self.token_type = token_type
    +354        self.text = text
    +355        self.line = line
    +356        size = len(text)
    +357        self.col = col
    +358        self.end = end if end else size
    +359        self.comments = comments
    +360
    +361    @property
    +362    def start(self) -> int:
    +363        """Returns the start of the token."""
    +364        return self.end - len(self.text)
    +365
    +366    def __repr__(self) -> str:
    +367        attributes = ", ".join(f"{k}: {getattr(self, k)}" for k in self.__slots__)
    +368        return f"<Token {attributes}>"
     
    @@ -6138,22 +6174,22 @@
    -
    342    def __init__(
    -343        self,
    -344        token_type: TokenType,
    -345        text: str,
    -346        line: int = 1,
    -347        col: int = 1,
    -348        end: int = 0,
    -349        comments: t.List[str] = [],
    -350    ) -> None:
    -351        self.token_type = token_type
    -352        self.text = text
    -353        self.line = line
    -354        size = len(text)
    -355        self.col = col
    -356        self.end = end if end else size
    -357        self.comments = comments
    +            
    344    def __init__(
    +345        self,
    +346        token_type: TokenType,
    +347        text: str,
    +348        line: int = 1,
    +349        col: int = 1,
    +350        end: int = 0,
    +351        comments: t.List[str] = [],
    +352    ) -> None:
    +353        self.token_type = token_type
    +354        self.text = text
    +355        self.line = line
    +356        size = len(text)
    +357        self.col = col
    +358        self.end = end if end else size
    +359        self.comments = comments
     
    @@ -6172,10 +6208,10 @@
    -
    322    @classmethod
    -323    def number(cls, number: int) -> Token:
    -324        """Returns a NUMBER token with `number` as its text."""
    -325        return cls(TokenType.NUMBER, str(number))
    +            
    324    @classmethod
    +325    def number(cls, number: int) -> Token:
    +326        """Returns a NUMBER token with `number` as its text."""
    +327        return cls(TokenType.NUMBER, str(number))
     
    @@ -6196,10 +6232,10 @@
    -
    327    @classmethod
    -328    def string(cls, string: str) -> Token:
    -329        """Returns a STRING token with `string` as its text."""
    -330        return cls(TokenType.STRING, string)
    +            
    329    @classmethod
    +330    def string(cls, string: str) -> Token:
    +331        """Returns a STRING token with `string` as its text."""
    +332        return cls(TokenType.STRING, string)
     
    @@ -6220,10 +6256,10 @@
    -
    332    @classmethod
    -333    def identifier(cls, identifier: str) -> Token:
    -334        """Returns an IDENTIFIER token with `identifier` as its text."""
    -335        return cls(TokenType.IDENTIFIER, identifier)
    +            
    334    @classmethod
    +335    def identifier(cls, identifier: str) -> Token:
    +336        """Returns an IDENTIFIER token with `identifier` as its text."""
    +337        return cls(TokenType.IDENTIFIER, identifier)
     
    @@ -6244,10 +6280,10 @@
    -
    337    @classmethod
    -338    def var(cls, var: str) -> Token:
    -339        """Returns an VAR token with `var` as its text."""
    -340        return cls(TokenType.VAR, var)
    +            
    339    @classmethod
    +340    def var(cls, var: str) -> Token:
    +341        """Returns an VAR token with `var` as its text."""
    +342        return cls(TokenType.VAR, var)
     
    @@ -6281,759 +6317,761 @@
    -
     409class Tokenizer(metaclass=_Tokenizer):
    - 410    SINGLE_TOKENS = {
    - 411        "(": TokenType.L_PAREN,
    - 412        ")": TokenType.R_PAREN,
    - 413        "[": TokenType.L_BRACKET,
    - 414        "]": TokenType.R_BRACKET,
    - 415        "{": TokenType.L_BRACE,
    - 416        "}": TokenType.R_BRACE,
    - 417        "&": TokenType.AMP,
    - 418        "^": TokenType.CARET,
    - 419        ":": TokenType.COLON,
    - 420        ",": TokenType.COMMA,
    - 421        ".": TokenType.DOT,
    - 422        "-": TokenType.DASH,
    - 423        "=": TokenType.EQ,
    - 424        ">": TokenType.GT,
    - 425        "<": TokenType.LT,
    - 426        "%": TokenType.MOD,
    - 427        "!": TokenType.NOT,
    - 428        "|": TokenType.PIPE,
    - 429        "+": TokenType.PLUS,
    - 430        ";": TokenType.SEMICOLON,
    - 431        "/": TokenType.SLASH,
    - 432        "\\": TokenType.BACKSLASH,
    - 433        "*": TokenType.STAR,
    - 434        "~": TokenType.TILDA,
    - 435        "?": TokenType.PLACEHOLDER,
    - 436        "@": TokenType.PARAMETER,
    - 437        # used for breaking a var like x'y' but nothing else
    - 438        # the token type doesn't matter
    - 439        "'": TokenType.QUOTE,
    - 440        "`": TokenType.IDENTIFIER,
    - 441        '"': TokenType.IDENTIFIER,
    - 442        "#": TokenType.HASH,
    - 443    }
    - 444
    - 445    BIT_STRINGS: t.List[str | t.Tuple[str, str]] = []
    - 446    BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = []
    - 447    HEX_STRINGS: t.List[str | t.Tuple[str, str]] = []
    - 448    IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"']
    - 449    IDENTIFIER_ESCAPES = ['"']
    - 450    QUOTES: t.List[t.Tuple[str, str] | str] = ["'"]
    - 451    STRING_ESCAPES = ["'"]
    - 452    VAR_SINGLE_TOKENS: t.Set[str] = set()
    - 453
    - 454    _COMMENTS: t.Dict[str, str] = {}
    - 455    _BIT_STRINGS: t.Dict[str, str] = {}
    - 456    _BYTE_STRINGS: t.Dict[str, str] = {}
    - 457    _HEX_STRINGS: t.Dict[str, str] = {}
    - 458    _IDENTIFIERS: t.Dict[str, str] = {}
    - 459    _IDENTIFIER_ESCAPES: t.Set[str] = set()
    - 460    _QUOTES: t.Dict[str, str] = {}
    - 461    _STRING_ESCAPES: t.Set[str] = set()
    - 462
    - 463    KEYWORDS: t.Dict[t.Optional[str], TokenType] = {
    - 464        **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")},
    - 465        **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")},
    - 466        "{{+": TokenType.BLOCK_START,
    - 467        "{{-": TokenType.BLOCK_START,
    - 468        "+}}": TokenType.BLOCK_END,
    - 469        "-}}": TokenType.BLOCK_END,
    - 470        "/*+": TokenType.HINT,
    - 471        "==": TokenType.EQ,
    - 472        "::": TokenType.DCOLON,
    - 473        "||": TokenType.DPIPE,
    - 474        ">=": TokenType.GTE,
    - 475        "<=": TokenType.LTE,
    - 476        "<>": TokenType.NEQ,
    - 477        "!=": TokenType.NEQ,
    - 478        "<=>": TokenType.NULLSAFE_EQ,
    - 479        "->": TokenType.ARROW,
    - 480        "->>": TokenType.DARROW,
    - 481        "=>": TokenType.FARROW,
    - 482        "#>": TokenType.HASH_ARROW,
    - 483        "#>>": TokenType.DHASH_ARROW,
    - 484        "<->": TokenType.LR_ARROW,
    - 485        "&&": TokenType.DAMP,
    - 486        "ALL": TokenType.ALL,
    - 487        "ALWAYS": TokenType.ALWAYS,
    - 488        "AND": TokenType.AND,
    - 489        "ANTI": TokenType.ANTI,
    - 490        "ANY": TokenType.ANY,
    - 491        "ASC": TokenType.ASC,
    - 492        "AS": TokenType.ALIAS,
    - 493        "AT TIME ZONE": TokenType.AT_TIME_ZONE,
    - 494        "AUTOINCREMENT": TokenType.AUTO_INCREMENT,
    - 495        "AUTO_INCREMENT": TokenType.AUTO_INCREMENT,
    - 496        "BEGIN": TokenType.BEGIN,
    - 497        "BETWEEN": TokenType.BETWEEN,
    - 498        "BOTH": TokenType.BOTH,
    - 499        "BUCKET": TokenType.BUCKET,
    - 500        "BY DEFAULT": TokenType.BY_DEFAULT,
    - 501        "CACHE": TokenType.CACHE,
    - 502        "UNCACHE": TokenType.UNCACHE,
    - 503        "CASE": TokenType.CASE,
    - 504        "CASCADE": TokenType.CASCADE,
    - 505        "CHARACTER SET": TokenType.CHARACTER_SET,
    - 506        "CLUSTER BY": TokenType.CLUSTER_BY,
    - 507        "COLLATE": TokenType.COLLATE,
    - 508        "COLUMN": TokenType.COLUMN,
    - 509        "COMMIT": TokenType.COMMIT,
    - 510        "COMPOUND": TokenType.COMPOUND,
    - 511        "CONSTRAINT": TokenType.CONSTRAINT,
    - 512        "CREATE": TokenType.CREATE,
    - 513        "CROSS": TokenType.CROSS,
    - 514        "CUBE": TokenType.CUBE,
    - 515        "CURRENT_DATE": TokenType.CURRENT_DATE,
    - 516        "CURRENT ROW": TokenType.CURRENT_ROW,
    - 517        "CURRENT_TIME": TokenType.CURRENT_TIME,
    - 518        "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP,
    - 519        "CURRENT_USER": TokenType.CURRENT_USER,
    - 520        "DATABASE": TokenType.DATABASE,
    - 521        "DEFAULT": TokenType.DEFAULT,
    - 522        "DELETE": TokenType.DELETE,
    - 523        "DESC": TokenType.DESC,
    - 524        "DESCRIBE": TokenType.DESCRIBE,
    - 525        "DISTINCT": TokenType.DISTINCT,
    - 526        "DISTINCT FROM": TokenType.DISTINCT_FROM,
    - 527        "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY,
    - 528        "DIV": TokenType.DIV,
    - 529        "DROP": TokenType.DROP,
    - 530        "ELSE": TokenType.ELSE,
    - 531        "END": TokenType.END,
    - 532        "ESCAPE": TokenType.ESCAPE,
    - 533        "EXCEPT": TokenType.EXCEPT,
    - 534        "EXECUTE": TokenType.EXECUTE,
    - 535        "EXISTS": TokenType.EXISTS,
    - 536        "FALSE": TokenType.FALSE,
    - 537        "FETCH": TokenType.FETCH,
    - 538        "FILTER": TokenType.FILTER,
    - 539        "FIRST": TokenType.FIRST,
    - 540        "FULL": TokenType.FULL,
    - 541        "FUNCTION": TokenType.FUNCTION,
    - 542        "FOLLOWING": TokenType.FOLLOWING,
    - 543        "FOR": TokenType.FOR,
    - 544        "FOREIGN KEY": TokenType.FOREIGN_KEY,
    - 545        "FORMAT": TokenType.FORMAT,
    - 546        "FROM": TokenType.FROM,
    - 547        "GLOB": TokenType.GLOB,
    - 548        "GROUP BY": TokenType.GROUP_BY,
    - 549        "GROUPING SETS": TokenType.GROUPING_SETS,
    - 550        "HAVING": TokenType.HAVING,
    - 551        "IF": TokenType.IF,
    - 552        "ILIKE": TokenType.ILIKE,
    - 553        "IGNORE NULLS": TokenType.IGNORE_NULLS,
    - 554        "IN": TokenType.IN,
    - 555        "INDEX": TokenType.INDEX,
    - 556        "INET": TokenType.INET,
    - 557        "INNER": TokenType.INNER,
    - 558        "INSERT": TokenType.INSERT,
    - 559        "INTERVAL": TokenType.INTERVAL,
    - 560        "INTERSECT": TokenType.INTERSECT,
    - 561        "INTO": TokenType.INTO,
    - 562        "IS": TokenType.IS,
    - 563        "ISNULL": TokenType.ISNULL,
    - 564        "JOIN": TokenType.JOIN,
    - 565        "LATERAL": TokenType.LATERAL,
    - 566        "LAZY": TokenType.LAZY,
    - 567        "LEADING": TokenType.LEADING,
    - 568        "LEFT": TokenType.LEFT,
    - 569        "LIKE": TokenType.LIKE,
    - 570        "LIMIT": TokenType.LIMIT,
    - 571        "LOAD DATA": TokenType.LOAD_DATA,
    - 572        "LOCAL": TokenType.LOCAL,
    - 573        "MATERIALIZED": TokenType.MATERIALIZED,
    - 574        "MERGE": TokenType.MERGE,
    - 575        "NATURAL": TokenType.NATURAL,
    - 576        "NEXT": TokenType.NEXT,
    - 577        "NO ACTION": TokenType.NO_ACTION,
    - 578        "NOT": TokenType.NOT,
    - 579        "NOTNULL": TokenType.NOTNULL,
    - 580        "NULL": TokenType.NULL,
    - 581        "NULLS FIRST": TokenType.NULLS_FIRST,
    - 582        "NULLS LAST": TokenType.NULLS_LAST,
    - 583        "OBJECT": TokenType.OBJECT,
    - 584        "OFFSET": TokenType.OFFSET,
    - 585        "ON": TokenType.ON,
    - 586        "ONLY": TokenType.ONLY,
    - 587        "OPTIONS": TokenType.OPTIONS,
    - 588        "OR": TokenType.OR,
    - 589        "ORDER BY": TokenType.ORDER_BY,
    - 590        "ORDINALITY": TokenType.ORDINALITY,
    - 591        "OUTER": TokenType.OUTER,
    - 592        "OUT OF": TokenType.OUT_OF,
    - 593        "OVER": TokenType.OVER,
    - 594        "OVERLAPS": TokenType.OVERLAPS,
    - 595        "OVERWRITE": TokenType.OVERWRITE,
    - 596        "PARTITION": TokenType.PARTITION,
    - 597        "PARTITION BY": TokenType.PARTITION_BY,
    - 598        "PARTITIONED BY": TokenType.PARTITION_BY,
    - 599        "PARTITIONED_BY": TokenType.PARTITION_BY,
    - 600        "PERCENT": TokenType.PERCENT,
    - 601        "PIVOT": TokenType.PIVOT,
    - 602        "PRAGMA": TokenType.PRAGMA,
    - 603        "PRECEDING": TokenType.PRECEDING,
    - 604        "PRIMARY KEY": TokenType.PRIMARY_KEY,
    - 605        "PROCEDURE": TokenType.PROCEDURE,
    - 606        "QUALIFY": TokenType.QUALIFY,
    - 607        "RANGE": TokenType.RANGE,
    - 608        "RECURSIVE": TokenType.RECURSIVE,
    - 609        "REGEXP": TokenType.RLIKE,
    - 610        "REPLACE": TokenType.REPLACE,
    - 611        "RESPECT NULLS": TokenType.RESPECT_NULLS,
    - 612        "REFERENCES": TokenType.REFERENCES,
    - 613        "RIGHT": TokenType.RIGHT,
    - 614        "RLIKE": TokenType.RLIKE,
    - 615        "ROLLBACK": TokenType.ROLLBACK,
    - 616        "ROLLUP": TokenType.ROLLUP,
    - 617        "ROW": TokenType.ROW,
    - 618        "ROWS": TokenType.ROWS,
    - 619        "SCHEMA": TokenType.SCHEMA,
    - 620        "SEED": TokenType.SEED,
    - 621        "SELECT": TokenType.SELECT,
    - 622        "SEMI": TokenType.SEMI,
    - 623        "SET": TokenType.SET,
    - 624        "SHOW": TokenType.SHOW,
    - 625        "SIMILAR TO": TokenType.SIMILAR_TO,
    - 626        "SOME": TokenType.SOME,
    - 627        "SORTKEY": TokenType.SORTKEY,
    - 628        "SORT BY": TokenType.SORT_BY,
    - 629        "TABLE": TokenType.TABLE,
    - 630        "TABLESAMPLE": TokenType.TABLE_SAMPLE,
    - 631        "TEMP": TokenType.TEMPORARY,
    - 632        "TEMPORARY": TokenType.TEMPORARY,
    - 633        "THEN": TokenType.THEN,
    - 634        "TRUE": TokenType.TRUE,
    - 635        "TRAILING": TokenType.TRAILING,
    - 636        "UNBOUNDED": TokenType.UNBOUNDED,
    - 637        "UNION": TokenType.UNION,
    - 638        "UNLOGGED": TokenType.UNLOGGED,
    - 639        "UNNEST": TokenType.UNNEST,
    - 640        "UNPIVOT": TokenType.UNPIVOT,
    - 641        "UPDATE": TokenType.UPDATE,
    - 642        "USE": TokenType.USE,
    - 643        "USING": TokenType.USING,
    - 644        "UUID": TokenType.UUID,
    - 645        "VALUES": TokenType.VALUES,
    - 646        "VIEW": TokenType.VIEW,
    - 647        "VOLATILE": TokenType.VOLATILE,
    - 648        "WHEN": TokenType.WHEN,
    - 649        "WHERE": TokenType.WHERE,
    - 650        "WINDOW": TokenType.WINDOW,
    - 651        "WITH": TokenType.WITH,
    - 652        "WITH TIME ZONE": TokenType.WITH_TIME_ZONE,
    - 653        "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE,
    - 654        "WITHIN GROUP": TokenType.WITHIN_GROUP,
    - 655        "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE,
    - 656        "APPLY": TokenType.APPLY,
    - 657        "ARRAY": TokenType.ARRAY,
    - 658        "BIT": TokenType.BIT,
    - 659        "BOOL": TokenType.BOOLEAN,
    - 660        "BOOLEAN": TokenType.BOOLEAN,
    - 661        "BYTE": TokenType.TINYINT,
    - 662        "TINYINT": TokenType.TINYINT,
    - 663        "SHORT": TokenType.SMALLINT,
    - 664        "SMALLINT": TokenType.SMALLINT,
    - 665        "INT2": TokenType.SMALLINT,
    - 666        "INTEGER": TokenType.INT,
    - 667        "INT": TokenType.INT,
    - 668        "INT4": TokenType.INT,
    - 669        "LONG": TokenType.BIGINT,
    - 670        "BIGINT": TokenType.BIGINT,
    - 671        "INT8": TokenType.BIGINT,
    - 672        "DEC": TokenType.DECIMAL,
    - 673        "DECIMAL": TokenType.DECIMAL,
    - 674        "BIGDECIMAL": TokenType.BIGDECIMAL,
    - 675        "BIGNUMERIC": TokenType.BIGDECIMAL,
    - 676        "MAP": TokenType.MAP,
    - 677        "NULLABLE": TokenType.NULLABLE,
    - 678        "NUMBER": TokenType.DECIMAL,
    - 679        "NUMERIC": TokenType.DECIMAL,
    - 680        "FIXED": TokenType.DECIMAL,
    - 681        "REAL": TokenType.FLOAT,
    - 682        "FLOAT": TokenType.FLOAT,
    - 683        "FLOAT4": TokenType.FLOAT,
    - 684        "FLOAT8": TokenType.DOUBLE,
    - 685        "DOUBLE": TokenType.DOUBLE,
    - 686        "DOUBLE PRECISION": TokenType.DOUBLE,
    - 687        "JSON": TokenType.JSON,
    - 688        "CHAR": TokenType.CHAR,
    - 689        "CHARACTER": TokenType.CHAR,
    - 690        "NCHAR": TokenType.NCHAR,
    - 691        "VARCHAR": TokenType.VARCHAR,
    - 692        "VARCHAR2": TokenType.VARCHAR,
    - 693        "NVARCHAR": TokenType.NVARCHAR,
    - 694        "NVARCHAR2": TokenType.NVARCHAR,
    - 695        "STR": TokenType.TEXT,
    - 696        "STRING": TokenType.TEXT,
    - 697        "TEXT": TokenType.TEXT,
    - 698        "CLOB": TokenType.TEXT,
    - 699        "LONGVARCHAR": TokenType.TEXT,
    - 700        "BINARY": TokenType.BINARY,
    - 701        "BLOB": TokenType.VARBINARY,
    - 702        "BYTEA": TokenType.VARBINARY,
    - 703        "VARBINARY": TokenType.VARBINARY,
    - 704        "TIME": TokenType.TIME,
    - 705        "TIMESTAMP": TokenType.TIMESTAMP,
    - 706        "TIMESTAMPTZ": TokenType.TIMESTAMPTZ,
    - 707        "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ,
    - 708        "DATE": TokenType.DATE,
    - 709        "DATETIME": TokenType.DATETIME,
    - 710        "UNIQUE": TokenType.UNIQUE,
    - 711        "STRUCT": TokenType.STRUCT,
    - 712        "VARIANT": TokenType.VARIANT,
    - 713        "ALTER": TokenType.ALTER,
    - 714        "ALTER AGGREGATE": TokenType.COMMAND,
    - 715        "ALTER DEFAULT": TokenType.COMMAND,
    - 716        "ALTER DOMAIN": TokenType.COMMAND,
    - 717        "ALTER ROLE": TokenType.COMMAND,
    - 718        "ALTER RULE": TokenType.COMMAND,
    - 719        "ALTER SEQUENCE": TokenType.COMMAND,
    - 720        "ALTER TYPE": TokenType.COMMAND,
    - 721        "ALTER USER": TokenType.COMMAND,
    - 722        "ALTER VIEW": TokenType.COMMAND,
    - 723        "ANALYZE": TokenType.COMMAND,
    - 724        "CALL": TokenType.COMMAND,
    - 725        "COMMENT": TokenType.COMMENT,
    - 726        "COPY": TokenType.COMMAND,
    - 727        "EXPLAIN": TokenType.COMMAND,
    - 728        "GRANT": TokenType.COMMAND,
    - 729        "OPTIMIZE": TokenType.COMMAND,
    - 730        "PREPARE": TokenType.COMMAND,
    - 731        "TRUNCATE": TokenType.COMMAND,
    - 732        "VACUUM": TokenType.COMMAND,
    - 733    }
    - 734
    - 735    WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = {
    - 736        " ": TokenType.SPACE,
    - 737        "\t": TokenType.SPACE,
    - 738        "\n": TokenType.BREAK,
    - 739        "\r": TokenType.BREAK,
    - 740        "\r\n": TokenType.BREAK,
    - 741    }
    - 742
    - 743    COMMANDS = {
    - 744        TokenType.COMMAND,
    - 745        TokenType.EXECUTE,
    - 746        TokenType.FETCH,
    - 747        TokenType.SHOW,
    - 748    }
    - 749
    - 750    COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN}
    - 751
    - 752    # handle numeric literals like in hive (3L = BIGINT)
    - 753    NUMERIC_LITERALS: t.Dict[str, str] = {}
    - 754    ENCODE: t.Optional[str] = None
    +            
     411class Tokenizer(metaclass=_Tokenizer):
    + 412    SINGLE_TOKENS = {
    + 413        "(": TokenType.L_PAREN,
    + 414        ")": TokenType.R_PAREN,
    + 415        "[": TokenType.L_BRACKET,
    + 416        "]": TokenType.R_BRACKET,
    + 417        "{": TokenType.L_BRACE,
    + 418        "}": TokenType.R_BRACE,
    + 419        "&": TokenType.AMP,
    + 420        "^": TokenType.CARET,
    + 421        ":": TokenType.COLON,
    + 422        ",": TokenType.COMMA,
    + 423        ".": TokenType.DOT,
    + 424        "-": TokenType.DASH,
    + 425        "=": TokenType.EQ,
    + 426        ">": TokenType.GT,
    + 427        "<": TokenType.LT,
    + 428        "%": TokenType.MOD,
    + 429        "!": TokenType.NOT,
    + 430        "|": TokenType.PIPE,
    + 431        "+": TokenType.PLUS,
    + 432        ";": TokenType.SEMICOLON,
    + 433        "/": TokenType.SLASH,
    + 434        "\\": TokenType.BACKSLASH,
    + 435        "*": TokenType.STAR,
    + 436        "~": TokenType.TILDA,
    + 437        "?": TokenType.PLACEHOLDER,
    + 438        "@": TokenType.PARAMETER,
    + 439        # used for breaking a var like x'y' but nothing else
    + 440        # the token type doesn't matter
    + 441        "'": TokenType.QUOTE,
    + 442        "`": TokenType.IDENTIFIER,
    + 443        '"': TokenType.IDENTIFIER,
    + 444        "#": TokenType.HASH,
    + 445    }
    + 446
    + 447    BIT_STRINGS: t.List[str | t.Tuple[str, str]] = []
    + 448    BYTE_STRINGS: t.List[str | t.Tuple[str, str]] = []
    + 449    HEX_STRINGS: t.List[str | t.Tuple[str, str]] = []
    + 450    IDENTIFIERS: t.List[str | t.Tuple[str, str]] = ['"']
    + 451    IDENTIFIER_ESCAPES = ['"']
    + 452    QUOTES: t.List[t.Tuple[str, str] | str] = ["'"]
    + 453    STRING_ESCAPES = ["'"]
    + 454    VAR_SINGLE_TOKENS: t.Set[str] = set()
    + 455
    + 456    _COMMENTS: t.Dict[str, str] = {}
    + 457    _BIT_STRINGS: t.Dict[str, str] = {}
    + 458    _BYTE_STRINGS: t.Dict[str, str] = {}
    + 459    _HEX_STRINGS: t.Dict[str, str] = {}
    + 460    _IDENTIFIERS: t.Dict[str, str] = {}
    + 461    _IDENTIFIER_ESCAPES: t.Set[str] = set()
    + 462    _QUOTES: t.Dict[str, str] = {}
    + 463    _STRING_ESCAPES: t.Set[str] = set()
    + 464
    + 465    KEYWORDS: t.Dict[t.Optional[str], TokenType] = {
    + 466        **{f"{{%{postfix}": TokenType.BLOCK_START for postfix in ("", "+", "-")},
    + 467        **{f"{prefix}%}}": TokenType.BLOCK_END for prefix in ("", "+", "-")},
    + 468        "{{+": TokenType.BLOCK_START,
    + 469        "{{-": TokenType.BLOCK_START,
    + 470        "+}}": TokenType.BLOCK_END,
    + 471        "-}}": TokenType.BLOCK_END,
    + 472        "/*+": TokenType.HINT,
    + 473        "==": TokenType.EQ,
    + 474        "::": TokenType.DCOLON,
    + 475        "||": TokenType.DPIPE,
    + 476        ">=": TokenType.GTE,
    + 477        "<=": TokenType.LTE,
    + 478        "<>": TokenType.NEQ,
    + 479        "!=": TokenType.NEQ,
    + 480        "<=>": TokenType.NULLSAFE_EQ,
    + 481        "->": TokenType.ARROW,
    + 482        "->>": TokenType.DARROW,
    + 483        "=>": TokenType.FARROW,
    + 484        "#>": TokenType.HASH_ARROW,
    + 485        "#>>": TokenType.DHASH_ARROW,
    + 486        "<->": TokenType.LR_ARROW,
    + 487        "&&": TokenType.DAMP,
    + 488        "ALL": TokenType.ALL,
    + 489        "ALWAYS": TokenType.ALWAYS,
    + 490        "AND": TokenType.AND,
    + 491        "ANTI": TokenType.ANTI,
    + 492        "ANY": TokenType.ANY,
    + 493        "ASC": TokenType.ASC,
    + 494        "AS": TokenType.ALIAS,
    + 495        "AT TIME ZONE": TokenType.AT_TIME_ZONE,
    + 496        "AUTOINCREMENT": TokenType.AUTO_INCREMENT,
    + 497        "AUTO_INCREMENT": TokenType.AUTO_INCREMENT,
    + 498        "BEGIN": TokenType.BEGIN,
    + 499        "BETWEEN": TokenType.BETWEEN,
    + 500        "BOTH": TokenType.BOTH,
    + 501        "BUCKET": TokenType.BUCKET,
    + 502        "BY DEFAULT": TokenType.BY_DEFAULT,
    + 503        "CACHE": TokenType.CACHE,
    + 504        "UNCACHE": TokenType.UNCACHE,
    + 505        "CASE": TokenType.CASE,
    + 506        "CASCADE": TokenType.CASCADE,
    + 507        "CHARACTER SET": TokenType.CHARACTER_SET,
    + 508        "CLUSTER BY": TokenType.CLUSTER_BY,
    + 509        "COLLATE": TokenType.COLLATE,
    + 510        "COLUMN": TokenType.COLUMN,
    + 511        "COMMIT": TokenType.COMMIT,
    + 512        "COMPOUND": TokenType.COMPOUND,
    + 513        "CONSTRAINT": TokenType.CONSTRAINT,
    + 514        "CREATE": TokenType.CREATE,
    + 515        "CROSS": TokenType.CROSS,
    + 516        "CUBE": TokenType.CUBE,
    + 517        "CURRENT_DATE": TokenType.CURRENT_DATE,
    + 518        "CURRENT ROW": TokenType.CURRENT_ROW,
    + 519        "CURRENT_TIME": TokenType.CURRENT_TIME,
    + 520        "CURRENT_TIMESTAMP": TokenType.CURRENT_TIMESTAMP,
    + 521        "CURRENT_USER": TokenType.CURRENT_USER,
    + 522        "DATABASE": TokenType.DATABASE,
    + 523        "DEFAULT": TokenType.DEFAULT,
    + 524        "DELETE": TokenType.DELETE,
    + 525        "DESC": TokenType.DESC,
    + 526        "DESCRIBE": TokenType.DESCRIBE,
    + 527        "DISTINCT": TokenType.DISTINCT,
    + 528        "DISTINCT FROM": TokenType.DISTINCT_FROM,
    + 529        "DISTRIBUTE BY": TokenType.DISTRIBUTE_BY,
    + 530        "DIV": TokenType.DIV,
    + 531        "DROP": TokenType.DROP,
    + 532        "ELSE": TokenType.ELSE,
    + 533        "END": TokenType.END,
    + 534        "ESCAPE": TokenType.ESCAPE,
    + 535        "EXCEPT": TokenType.EXCEPT,
    + 536        "EXECUTE": TokenType.EXECUTE,
    + 537        "EXISTS": TokenType.EXISTS,
    + 538        "FALSE": TokenType.FALSE,
    + 539        "FETCH": TokenType.FETCH,
    + 540        "FILTER": TokenType.FILTER,
    + 541        "FIRST": TokenType.FIRST,
    + 542        "FULL": TokenType.FULL,
    + 543        "FUNCTION": TokenType.FUNCTION,
    + 544        "FOLLOWING": TokenType.FOLLOWING,
    + 545        "FOR": TokenType.FOR,
    + 546        "FOREIGN KEY": TokenType.FOREIGN_KEY,
    + 547        "FORMAT": TokenType.FORMAT,
    + 548        "FROM": TokenType.FROM,
    + 549        "GLOB": TokenType.GLOB,
    + 550        "GROUP BY": TokenType.GROUP_BY,
    + 551        "GROUPING SETS": TokenType.GROUPING_SETS,
    + 552        "HAVING": TokenType.HAVING,
    + 553        "IF": TokenType.IF,
    + 554        "ILIKE": TokenType.ILIKE,
    + 555        "IGNORE NULLS": TokenType.IGNORE_NULLS,
    + 556        "IN": TokenType.IN,
    + 557        "INDEX": TokenType.INDEX,
    + 558        "INET": TokenType.INET,
    + 559        "INNER": TokenType.INNER,
    + 560        "INSERT": TokenType.INSERT,
    + 561        "INTERVAL": TokenType.INTERVAL,
    + 562        "INTERSECT": TokenType.INTERSECT,
    + 563        "INTO": TokenType.INTO,
    + 564        "IS": TokenType.IS,
    + 565        "ISNULL": TokenType.ISNULL,
    + 566        "JOIN": TokenType.JOIN,
    + 567        "KEEP": TokenType.KEEP,
    + 568        "LATERAL": TokenType.LATERAL,
    + 569        "LAZY": TokenType.LAZY,
    + 570        "LEADING": TokenType.LEADING,
    + 571        "LEFT": TokenType.LEFT,
    + 572        "LIKE": TokenType.LIKE,
    + 573        "LIMIT": TokenType.LIMIT,
    + 574        "LOAD DATA": TokenType.LOAD_DATA,
    + 575        "LOCAL": TokenType.LOCAL,
    + 576        "MATERIALIZED": TokenType.MATERIALIZED,
    + 577        "MERGE": TokenType.MERGE,
    + 578        "NATURAL": TokenType.NATURAL,
    + 579        "NEXT": TokenType.NEXT,
    + 580        "NEXT VALUE FOR": TokenType.NEXT_VALUE_FOR,
    + 581        "NO ACTION": TokenType.NO_ACTION,
    + 582        "NOT": TokenType.NOT,
    + 583        "NOTNULL": TokenType.NOTNULL,
    + 584        "NULL": TokenType.NULL,
    + 585        "NULLS FIRST": TokenType.NULLS_FIRST,
    + 586        "NULLS LAST": TokenType.NULLS_LAST,
    + 587        "OBJECT": TokenType.OBJECT,
    + 588        "OFFSET": TokenType.OFFSET,
    + 589        "ON": TokenType.ON,
    + 590        "ONLY": TokenType.ONLY,
    + 591        "OPTIONS": TokenType.OPTIONS,
    + 592        "OR": TokenType.OR,
    + 593        "ORDER BY": TokenType.ORDER_BY,
    + 594        "ORDINALITY": TokenType.ORDINALITY,
    + 595        "OUTER": TokenType.OUTER,
    + 596        "OUT OF": TokenType.OUT_OF,
    + 597        "OVER": TokenType.OVER,
    + 598        "OVERLAPS": TokenType.OVERLAPS,
    + 599        "OVERWRITE": TokenType.OVERWRITE,
    + 600        "PARTITION": TokenType.PARTITION,
    + 601        "PARTITION BY": TokenType.PARTITION_BY,
    + 602        "PARTITIONED BY": TokenType.PARTITION_BY,
    + 603        "PARTITIONED_BY": TokenType.PARTITION_BY,
    + 604        "PERCENT": TokenType.PERCENT,
    + 605        "PIVOT": TokenType.PIVOT,
    + 606        "PRAGMA": TokenType.PRAGMA,
    + 607        "PRECEDING": TokenType.PRECEDING,
    + 608        "PRIMARY KEY": TokenType.PRIMARY_KEY,
    + 609        "PROCEDURE": TokenType.PROCEDURE,
    + 610        "QUALIFY": TokenType.QUALIFY,
    + 611        "RANGE": TokenType.RANGE,
    + 612        "RECURSIVE": TokenType.RECURSIVE,
    + 613        "REGEXP": TokenType.RLIKE,
    + 614        "REPLACE": TokenType.REPLACE,
    + 615        "RESPECT NULLS": TokenType.RESPECT_NULLS,
    + 616        "REFERENCES": TokenType.REFERENCES,
    + 617        "RIGHT": TokenType.RIGHT,
    + 618        "RLIKE": TokenType.RLIKE,
    + 619        "ROLLBACK": TokenType.ROLLBACK,
    + 620        "ROLLUP": TokenType.ROLLUP,
    + 621        "ROW": TokenType.ROW,
    + 622        "ROWS": TokenType.ROWS,
    + 623        "SCHEMA": TokenType.SCHEMA,
    + 624        "SEED": TokenType.SEED,
    + 625        "SELECT": TokenType.SELECT,
    + 626        "SEMI": TokenType.SEMI,
    + 627        "SET": TokenType.SET,
    + 628        "SHOW": TokenType.SHOW,
    + 629        "SIMILAR TO": TokenType.SIMILAR_TO,
    + 630        "SOME": TokenType.SOME,
    + 631        "SORTKEY": TokenType.SORTKEY,
    + 632        "SORT BY": TokenType.SORT_BY,
    + 633        "TABLE": TokenType.TABLE,
    + 634        "TABLESAMPLE": TokenType.TABLE_SAMPLE,
    + 635        "TEMP": TokenType.TEMPORARY,
    + 636        "TEMPORARY": TokenType.TEMPORARY,
    + 637        "THEN": TokenType.THEN,
    + 638        "TRUE": TokenType.TRUE,
    + 639        "TRAILING": TokenType.TRAILING,
    + 640        "UNBOUNDED": TokenType.UNBOUNDED,
    + 641        "UNION": TokenType.UNION,
    + 642        "UNLOGGED": TokenType.UNLOGGED,
    + 643        "UNNEST": TokenType.UNNEST,
    + 644        "UNPIVOT": TokenType.UNPIVOT,
    + 645        "UPDATE": TokenType.UPDATE,
    + 646        "USE": TokenType.USE,
    + 647        "USING": TokenType.USING,
    + 648        "UUID": TokenType.UUID,
    + 649        "VALUES": TokenType.VALUES,
    + 650        "VIEW": TokenType.VIEW,
    + 651        "VOLATILE": TokenType.VOLATILE,
    + 652        "WHEN": TokenType.WHEN,
    + 653        "WHERE": TokenType.WHERE,
    + 654        "WINDOW": TokenType.WINDOW,
    + 655        "WITH": TokenType.WITH,
    + 656        "WITH TIME ZONE": TokenType.WITH_TIME_ZONE,
    + 657        "WITH LOCAL TIME ZONE": TokenType.WITH_LOCAL_TIME_ZONE,
    + 658        "WITHIN GROUP": TokenType.WITHIN_GROUP,
    + 659        "WITHOUT TIME ZONE": TokenType.WITHOUT_TIME_ZONE,
    + 660        "APPLY": TokenType.APPLY,
    + 661        "ARRAY": TokenType.ARRAY,
    + 662        "BIT": TokenType.BIT,
    + 663        "BOOL": TokenType.BOOLEAN,
    + 664        "BOOLEAN": TokenType.BOOLEAN,
    + 665        "BYTE": TokenType.TINYINT,
    + 666        "TINYINT": TokenType.TINYINT,
    + 667        "SHORT": TokenType.SMALLINT,
    + 668        "SMALLINT": TokenType.SMALLINT,
    + 669        "INT2": TokenType.SMALLINT,
    + 670        "INTEGER": TokenType.INT,
    + 671        "INT": TokenType.INT,
    + 672        "INT4": TokenType.INT,
    + 673        "LONG": TokenType.BIGINT,
    + 674        "BIGINT": TokenType.BIGINT,
    + 675        "INT8": TokenType.BIGINT,
    + 676        "DEC": TokenType.DECIMAL,
    + 677        "DECIMAL": TokenType.DECIMAL,
    + 678        "BIGDECIMAL": TokenType.BIGDECIMAL,
    + 679        "BIGNUMERIC": TokenType.BIGDECIMAL,
    + 680        "MAP": TokenType.MAP,
    + 681        "NULLABLE": TokenType.NULLABLE,
    + 682        "NUMBER": TokenType.DECIMAL,
    + 683        "NUMERIC": TokenType.DECIMAL,
    + 684        "FIXED": TokenType.DECIMAL,
    + 685        "REAL": TokenType.FLOAT,
    + 686        "FLOAT": TokenType.FLOAT,
    + 687        "FLOAT4": TokenType.FLOAT,
    + 688        "FLOAT8": TokenType.DOUBLE,
    + 689        "DOUBLE": TokenType.DOUBLE,
    + 690        "DOUBLE PRECISION": TokenType.DOUBLE,
    + 691        "JSON": TokenType.JSON,
    + 692        "CHAR": TokenType.CHAR,
    + 693        "CHARACTER": TokenType.CHAR,
    + 694        "NCHAR": TokenType.NCHAR,
    + 695        "VARCHAR": TokenType.VARCHAR,
    + 696        "VARCHAR2": TokenType.VARCHAR,
    + 697        "NVARCHAR": TokenType.NVARCHAR,
    + 698        "NVARCHAR2": TokenType.NVARCHAR,
    + 699        "STR": TokenType.TEXT,
    + 700        "STRING": TokenType.TEXT,
    + 701        "TEXT": TokenType.TEXT,
    + 702        "CLOB": TokenType.TEXT,
    + 703        "LONGVARCHAR": TokenType.TEXT,
    + 704        "BINARY": TokenType.BINARY,
    + 705        "BLOB": TokenType.VARBINARY,
    + 706        "BYTEA": TokenType.VARBINARY,
    + 707        "VARBINARY": TokenType.VARBINARY,
    + 708        "TIME": TokenType.TIME,
    + 709        "TIMESTAMP": TokenType.TIMESTAMP,
    + 710        "TIMESTAMPTZ": TokenType.TIMESTAMPTZ,
    + 711        "TIMESTAMPLTZ": TokenType.TIMESTAMPLTZ,
    + 712        "DATE": TokenType.DATE,
    + 713        "DATETIME": TokenType.DATETIME,
    + 714        "UNIQUE": TokenType.UNIQUE,
    + 715        "STRUCT": TokenType.STRUCT,
    + 716        "VARIANT": TokenType.VARIANT,
    + 717        "ALTER": TokenType.ALTER,
    + 718        "ALTER AGGREGATE": TokenType.COMMAND,
    + 719        "ALTER DEFAULT": TokenType.COMMAND,
    + 720        "ALTER DOMAIN": TokenType.COMMAND,
    + 721        "ALTER ROLE": TokenType.COMMAND,
    + 722        "ALTER RULE": TokenType.COMMAND,
    + 723        "ALTER SEQUENCE": TokenType.COMMAND,
    + 724        "ALTER TYPE": TokenType.COMMAND,
    + 725        "ALTER USER": TokenType.COMMAND,
    + 726        "ALTER VIEW": TokenType.COMMAND,
    + 727        "ANALYZE": TokenType.COMMAND,
    + 728        "CALL": TokenType.COMMAND,
    + 729        "COMMENT": TokenType.COMMENT,
    + 730        "COPY": TokenType.COMMAND,
    + 731        "EXPLAIN": TokenType.COMMAND,
    + 732        "GRANT": TokenType.COMMAND,
    + 733        "OPTIMIZE": TokenType.COMMAND,
    + 734        "PREPARE": TokenType.COMMAND,
    + 735        "TRUNCATE": TokenType.COMMAND,
    + 736        "VACUUM": TokenType.COMMAND,
    + 737    }
    + 738
    + 739    WHITE_SPACE: t.Dict[t.Optional[str], TokenType] = {
    + 740        " ": TokenType.SPACE,
    + 741        "\t": TokenType.SPACE,
    + 742        "\n": TokenType.BREAK,
    + 743        "\r": TokenType.BREAK,
    + 744        "\r\n": TokenType.BREAK,
    + 745    }
    + 746
    + 747    COMMANDS = {
    + 748        TokenType.COMMAND,
    + 749        TokenType.EXECUTE,
    + 750        TokenType.FETCH,
    + 751        TokenType.SHOW,
    + 752    }
    + 753
    + 754    COMMAND_PREFIX_TOKENS = {TokenType.SEMICOLON, TokenType.BEGIN}
      755
    - 756    COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")]
    - 757    KEYWORD_TRIE: t.Dict = {}  # autofilled
    - 758
    - 759    IDENTIFIER_CAN_START_WITH_DIGIT = False
    - 760
    - 761    __slots__ = (
    - 762        "sql",
    - 763        "size",
    - 764        "tokens",
    - 765        "_start",
    - 766        "_current",
    - 767        "_line",
    - 768        "_col",
    - 769        "_comments",
    - 770        "_char",
    - 771        "_end",
    - 772        "_peek",
    - 773        "_prev_token_line",
    - 774        "_prev_token_comments",
    - 775        "_prev_token_type",
    - 776    )
    - 777
    - 778    def __init__(self) -> None:
    - 779        self.reset()
    - 780
    - 781    def reset(self) -> None:
    - 782        self.sql = ""
    - 783        self.size = 0
    - 784        self.tokens: t.List[Token] = []
    - 785        self._start = 0
    - 786        self._current = 0
    - 787        self._line = 1
    - 788        self._col = 1
    - 789        self._comments: t.List[str] = []
    - 790
    - 791        self._char = ""
    - 792        self._end = False
    - 793        self._peek = ""
    - 794        self._prev_token_line = -1
    - 795        self._prev_token_comments: t.List[str] = []
    - 796        self._prev_token_type: t.Optional[TokenType] = None
    - 797
    - 798    def tokenize(self, sql: str) -> t.List[Token]:
    - 799        """Returns a list of tokens corresponding to the SQL string `sql`."""
    - 800        self.reset()
    - 801        self.sql = sql
    - 802        self.size = len(sql)
    - 803        try:
    - 804            self._scan()
    - 805        except Exception as e:
    - 806            start = self._current - 50
    - 807            end = self._current + 50
    - 808            start = start if start > 0 else 0
    - 809            end = end if end < self.size else self.size - 1
    - 810            context = self.sql[start:end]
    - 811            raise ValueError(f"Error tokenizing '{context}'") from e
    - 812
    - 813        return self.tokens
    - 814
    - 815    def _scan(self, until: t.Optional[t.Callable] = None) -> None:
    - 816        while self.size and not self._end:
    - 817            self._start = self._current
    - 818            self._advance()
    - 819
    - 820            if self._char is None:
    - 821                break
    - 822
    - 823            if self._char not in self.WHITE_SPACE:
    - 824                if self._char.isdigit():
    - 825                    self._scan_number()
    - 826                elif self._char in self._IDENTIFIERS:
    - 827                    self._scan_identifier(self._IDENTIFIERS[self._char])
    - 828                else:
    - 829                    self._scan_keywords()
    - 830
    - 831            if until and until():
    - 832                break
    - 833
    - 834        if self.tokens:
    - 835            self.tokens[-1].comments.extend(self._comments)
    - 836
    - 837    def _chars(self, size: int) -> str:
    - 838        if size == 1:
    - 839            return self._char
    - 840        start = self._current - 1
    - 841        end = start + size
    - 842        if end <= self.size:
    - 843            return self.sql[start:end]
    - 844        return ""
    - 845
    - 846    def _advance(self, i: int = 1) -> None:
    - 847        if self.WHITE_SPACE.get(self._char) is TokenType.BREAK:
    - 848            self._col = 1
    - 849            self._line += 1
    - 850        else:
    - 851            self._col += i
    - 852
    - 853        self._current += i
    - 854        self._end = self._current >= self.size
    - 855        self._char = self.sql[self._current - 1]
    - 856        self._peek = "" if self._end else self.sql[self._current]
    - 857
    - 858    @property
    - 859    def _text(self) -> str:
    - 860        return self.sql[self._start : self._current]
    + 756    # handle numeric literals like in hive (3L = BIGINT)
    + 757    NUMERIC_LITERALS: t.Dict[str, str] = {}
    + 758    ENCODE: t.Optional[str] = None
    + 759
    + 760    COMMENTS = ["--", ("/*", "*/"), ("{#", "#}")]
    + 761    KEYWORD_TRIE: t.Dict = {}  # autofilled
    + 762
    + 763    IDENTIFIER_CAN_START_WITH_DIGIT = False
    + 764
    + 765    __slots__ = (
    + 766        "sql",
    + 767        "size",
    + 768        "tokens",
    + 769        "_start",
    + 770        "_current",
    + 771        "_line",
    + 772        "_col",
    + 773        "_comments",
    + 774        "_char",
    + 775        "_end",
    + 776        "_peek",
    + 777        "_prev_token_line",
    + 778        "_prev_token_comments",
    + 779        "_prev_token_type",
    + 780    )
    + 781
    + 782    def __init__(self) -> None:
    + 783        self.reset()
    + 784
    + 785    def reset(self) -> None:
    + 786        self.sql = ""
    + 787        self.size = 0
    + 788        self.tokens: t.List[Token] = []
    + 789        self._start = 0
    + 790        self._current = 0
    + 791        self._line = 1
    + 792        self._col = 1
    + 793        self._comments: t.List[str] = []
    + 794
    + 795        self._char = ""
    + 796        self._end = False
    + 797        self._peek = ""
    + 798        self._prev_token_line = -1
    + 799        self._prev_token_comments: t.List[str] = []
    + 800        self._prev_token_type: t.Optional[TokenType] = None
    + 801
    + 802    def tokenize(self, sql: str) -> t.List[Token]:
    + 803        """Returns a list of tokens corresponding to the SQL string `sql`."""
    + 804        self.reset()
    + 805        self.sql = sql
    + 806        self.size = len(sql)
    + 807        try:
    + 808            self._scan()
    + 809        except Exception as e:
    + 810            start = self._current - 50
    + 811            end = self._current + 50
    + 812            start = start if start > 0 else 0
    + 813            end = end if end < self.size else self.size - 1
    + 814            context = self.sql[start:end]
    + 815            raise ValueError(f"Error tokenizing '{context}'") from e
    + 816
    + 817        return self.tokens
    + 818
    + 819    def _scan(self, until: t.Optional[t.Callable] = None) -> None:
    + 820        while self.size and not self._end:
    + 821            self._start = self._current
    + 822            self._advance()
    + 823
    + 824            if self._char is None:
    + 825                break
    + 826
    + 827            if self._char not in self.WHITE_SPACE:
    + 828                if self._char.isdigit():
    + 829                    self._scan_number()
    + 830                elif self._char in self._IDENTIFIERS:
    + 831                    self._scan_identifier(self._IDENTIFIERS[self._char])
    + 832                else:
    + 833                    self._scan_keywords()
    + 834
    + 835            if until and until():
    + 836                break
    + 837
    + 838        if self.tokens:
    + 839            self.tokens[-1].comments.extend(self._comments)
    + 840
    + 841    def _chars(self, size: int) -> str:
    + 842        if size == 1:
    + 843            return self._char
    + 844        start = self._current - 1
    + 845        end = start + size
    + 846        if end <= self.size:
    + 847            return self.sql[start:end]
    + 848        return ""
    + 849
    + 850    def _advance(self, i: int = 1) -> None:
    + 851        if self.WHITE_SPACE.get(self._char) is TokenType.BREAK:
    + 852            self._col = 1
    + 853            self._line += 1
    + 854        else:
    + 855            self._col += i
    + 856
    + 857        self._current += i
    + 858        self._end = self._current >= self.size
    + 859        self._char = self.sql[self._current - 1]
    + 860        self._peek = "" if self._end else self.sql[self._current]
      861
    - 862    def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None:
    - 863        self._prev_token_line = self._line
    - 864        self._prev_token_comments = self._comments
    - 865        self._prev_token_type = token_type
    - 866        self.tokens.append(
    - 867            Token(
    - 868                token_type,
    - 869                self._text if text is None else text,
    - 870                self._line,
    - 871                self._col,
    - 872                self._current,
    - 873                self._comments,
    - 874            )
    - 875        )
    - 876        self._comments = []
    - 877
    - 878        # If we have either a semicolon or a begin token before the command's token, we'll parse
    - 879        # whatever follows the command's token as a string
    - 880        if (
    - 881            token_type in self.COMMANDS
    - 882            and self._peek != ";"
    - 883            and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS)
    - 884        ):
    - 885            start = self._current
    - 886            tokens = len(self.tokens)
    - 887            self._scan(lambda: self._peek == ";")
    - 888            self.tokens = self.tokens[:tokens]
    - 889            text = self.sql[start : self._current].strip()
    - 890            if text:
    - 891                self._add(TokenType.STRING, text)
    - 892
    - 893    def _scan_keywords(self) -> None:
    - 894        size = 0
    - 895        word = None
    - 896        chars = self._text
    - 897        char = chars
    - 898        prev_space = False
    - 899        skip = False
    - 900        trie = self.KEYWORD_TRIE
    - 901        single_token = char in self.SINGLE_TOKENS
    - 902
    - 903        while chars:
    - 904            if skip:
    - 905                result = 1
    - 906            else:
    - 907                result, trie = in_trie(trie, char.upper())
    - 908
    - 909            if result == 0:
    - 910                break
    - 911            if result == 2:
    - 912                word = chars
    - 913            size += 1
    - 914            end = self._current - 1 + size
    - 915
    - 916            if end < self.size:
    - 917                char = self.sql[end]
    - 918                single_token = single_token or char in self.SINGLE_TOKENS
    - 919                is_space = char in self.WHITE_SPACE
    - 920
    - 921                if not is_space or not prev_space:
    - 922                    if is_space:
    - 923                        char = " "
    - 924                    chars += char
    - 925                    prev_space = is_space
    - 926                    skip = False
    - 927                else:
    - 928                    skip = True
    - 929            else:
    - 930                chars = " "
    - 931
    - 932        word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word
    - 933
    - 934        if not word:
    - 935            if self._char in self.SINGLE_TOKENS:
    - 936                self._add(self.SINGLE_TOKENS[self._char], text=self._char)
    - 937                return
    - 938            self._scan_var()
    - 939            return
    - 940
    - 941        if self._scan_string(word):
    - 942            return
    - 943        if self._scan_formatted_string(word):
    - 944            return
    - 945        if self._scan_comment(word):
    + 862    @property
    + 863    def _text(self) -> str:
    + 864        return self.sql[self._start : self._current]
    + 865
    + 866    def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None:
    + 867        self._prev_token_line = self._line
    + 868        self._prev_token_comments = self._comments
    + 869        self._prev_token_type = token_type
    + 870        self.tokens.append(
    + 871            Token(
    + 872                token_type,
    + 873                self._text if text is None else text,
    + 874                self._line,
    + 875                self._col,
    + 876                self._current,
    + 877                self._comments,
    + 878            )
    + 879        )
    + 880        self._comments = []
    + 881
    + 882        # If we have either a semicolon or a begin token before the command's token, we'll parse
    + 883        # whatever follows the command's token as a string
    + 884        if (
    + 885            token_type in self.COMMANDS
    + 886            and self._peek != ";"
    + 887            and (len(self.tokens) == 1 or self.tokens[-2].token_type in self.COMMAND_PREFIX_TOKENS)
    + 888        ):
    + 889            start = self._current
    + 890            tokens = len(self.tokens)
    + 891            self._scan(lambda: self._peek == ";")
    + 892            self.tokens = self.tokens[:tokens]
    + 893            text = self.sql[start : self._current].strip()
    + 894            if text:
    + 895                self._add(TokenType.STRING, text)
    + 896
    + 897    def _scan_keywords(self) -> None:
    + 898        size = 0
    + 899        word = None
    + 900        chars = self._text
    + 901        char = chars
    + 902        prev_space = False
    + 903        skip = False
    + 904        trie = self.KEYWORD_TRIE
    + 905        single_token = char in self.SINGLE_TOKENS
    + 906
    + 907        while chars:
    + 908            if skip:
    + 909                result = 1
    + 910            else:
    + 911                result, trie = in_trie(trie, char.upper())
    + 912
    + 913            if result == 0:
    + 914                break
    + 915            if result == 2:
    + 916                word = chars
    + 917            size += 1
    + 918            end = self._current - 1 + size
    + 919
    + 920            if end < self.size:
    + 921                char = self.sql[end]
    + 922                single_token = single_token or char in self.SINGLE_TOKENS
    + 923                is_space = char in self.WHITE_SPACE
    + 924
    + 925                if not is_space or not prev_space:
    + 926                    if is_space:
    + 927                        char = " "
    + 928                    chars += char
    + 929                    prev_space = is_space
    + 930                    skip = False
    + 931                else:
    + 932                    skip = True
    + 933            else:
    + 934                chars = " "
    + 935
    + 936        word = None if not single_token and chars[-1] not in self.WHITE_SPACE else word
    + 937
    + 938        if not word:
    + 939            if self._char in self.SINGLE_TOKENS:
    + 940                self._add(self.SINGLE_TOKENS[self._char], text=self._char)
    + 941                return
    + 942            self._scan_var()
    + 943            return
    + 944
    + 945        if self._scan_string(word):
      946            return
    - 947
    - 948        self._advance(size - 1)
    - 949        word = word.upper()
    - 950        self._add(self.KEYWORDS[word], text=word)
    + 947        if self._scan_formatted_string(word):
    + 948            return
    + 949        if self._scan_comment(word):
    + 950            return
      951
    - 952    def _scan_comment(self, comment_start: str) -> bool:
    - 953        if comment_start not in self._COMMENTS:
    - 954            return False
    + 952        self._advance(size - 1)
    + 953        word = word.upper()
    + 954        self._add(self.KEYWORDS[word], text=word)
      955
    - 956        comment_start_line = self._line
    - 957        comment_start_size = len(comment_start)
    - 958        comment_end = self._COMMENTS[comment_start]
    + 956    def _scan_comment(self, comment_start: str) -> bool:
    + 957        if comment_start not in self._COMMENTS:
    + 958            return False
      959
    - 960        if comment_end:
    - 961            # Skip the comment's start delimiter
    - 962            self._advance(comment_start_size)
    + 960        comment_start_line = self._line
    + 961        comment_start_size = len(comment_start)
    + 962        comment_end = self._COMMENTS[comment_start]
      963
    - 964            comment_end_size = len(comment_end)
    - 965            while not self._end and self._chars(comment_end_size) != comment_end:
    - 966                self._advance()
    + 964        if comment_end:
    + 965            # Skip the comment's start delimiter
    + 966            self._advance(comment_start_size)
      967
    - 968            self._comments.append(self._text[comment_start_size : -comment_end_size + 1])
    - 969            self._advance(comment_end_size - 1)
    - 970        else:
    - 971            while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK:
    - 972                self._advance()
    - 973            self._comments.append(self._text[comment_start_size:])
    - 974
    - 975        # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding.
    - 976        # Multiple consecutive comments are preserved by appending them to the current comments list.
    - 977        if comment_start_line == self._prev_token_line:
    - 978            self.tokens[-1].comments.extend(self._comments)
    - 979            self._comments = []
    - 980            self._prev_token_line = self._line
    - 981
    - 982        return True
    - 983
    - 984    def _scan_number(self) -> None:
    - 985        if self._char == "0":
    - 986            peek = self._peek.upper()
    - 987            if peek == "B":
    - 988                return self._scan_bits()
    - 989            elif peek == "X":
    - 990                return self._scan_hex()
    - 991
    - 992        decimal = False
    - 993        scientific = 0
    - 994
    - 995        while True:
    - 996            if self._peek.isdigit():
    - 997                self._advance()
    - 998            elif self._peek == "." and not decimal:
    - 999                decimal = True
    -1000                self._advance()
    -1001            elif self._peek in ("-", "+") and scientific == 1:
    -1002                scientific += 1
    -1003                self._advance()
    -1004            elif self._peek.upper() == "E" and not scientific:
    -1005                scientific += 1
    -1006                self._advance()
    -1007            elif self._peek.isidentifier():
    -1008                number_text = self._text
    -1009                literal = ""
    -1010
    -1011                while self._peek.strip() and self._peek not in self.SINGLE_TOKENS:
    -1012                    literal += self._peek.upper()
    -1013                    self._advance()
    + 968            comment_end_size = len(comment_end)
    + 969            while not self._end and self._chars(comment_end_size) != comment_end:
    + 970                self._advance()
    + 971
    + 972            self._comments.append(self._text[comment_start_size : -comment_end_size + 1])
    + 973            self._advance(comment_end_size - 1)
    + 974        else:
    + 975            while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK:
    + 976                self._advance()
    + 977            self._comments.append(self._text[comment_start_size:])
    + 978
    + 979        # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding.
    + 980        # Multiple consecutive comments are preserved by appending them to the current comments list.
    + 981        if comment_start_line == self._prev_token_line:
    + 982            self.tokens[-1].comments.extend(self._comments)
    + 983            self._comments = []
    + 984            self._prev_token_line = self._line
    + 985
    + 986        return True
    + 987
    + 988    def _scan_number(self) -> None:
    + 989        if self._char == "0":
    + 990            peek = self._peek.upper()
    + 991            if peek == "B":
    + 992                return self._scan_bits()
    + 993            elif peek == "X":
    + 994                return self._scan_hex()
    + 995
    + 996        decimal = False
    + 997        scientific = 0
    + 998
    + 999        while True:
    +1000            if self._peek.isdigit():
    +1001                self._advance()
    +1002            elif self._peek == "." and not decimal:
    +1003                decimal = True
    +1004                self._advance()
    +1005            elif self._peek in ("-", "+") and scientific == 1:
    +1006                scientific += 1
    +1007                self._advance()
    +1008            elif self._peek.upper() == "E" and not scientific:
    +1009                scientific += 1
    +1010                self._advance()
    +1011            elif self._peek.isidentifier():
    +1012                number_text = self._text
    +1013                literal = ""
     1014
    -1015                token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal))
    -1016
    -1017                if token_type:
    -1018                    self._add(TokenType.NUMBER, number_text)
    -1019                    self._add(TokenType.DCOLON, "::")
    -1020                    return self._add(token_type, literal)
    -1021                elif self.IDENTIFIER_CAN_START_WITH_DIGIT:
    -1022                    return self._add(TokenType.VAR)
    -1023
    -1024                self._add(TokenType.NUMBER, number_text)
    -1025                return self._advance(-len(literal))
    -1026            else:
    -1027                return self._add(TokenType.NUMBER)
    -1028
    -1029    def _scan_bits(self) -> None:
    -1030        self._advance()
    -1031        value = self._extract_value()
    -1032        try:
    -1033            self._add(TokenType.BIT_STRING, f"{int(value, 2)}")
    -1034        except ValueError:
    -1035            self._add(TokenType.IDENTIFIER)
    -1036
    -1037    def _scan_hex(self) -> None:
    -1038        self._advance()
    -1039        value = self._extract_value()
    -1040        try:
    -1041            self._add(TokenType.HEX_STRING, f"{int(value, 16)}")
    -1042        except ValueError:
    -1043            self._add(TokenType.IDENTIFIER)
    -1044
    -1045    def _extract_value(self) -> str:
    -1046        while True:
    -1047            char = self._peek.strip()
    -1048            if char and char not in self.SINGLE_TOKENS:
    -1049                self._advance()
    -1050            else:
    -1051                break
    -1052
    -1053        return self._text
    -1054
    -1055    def _scan_string(self, quote: str) -> bool:
    -1056        quote_end = self._QUOTES.get(quote)
    -1057        if quote_end is None:
    -1058            return False
    -1059
    -1060        self._advance(len(quote))
    -1061        text = self._extract_string(quote_end)
    -1062        text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text
    -1063        self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text)
    -1064        return True
    -1065
    -1066    # X'1234, b'0110', E'\\\\\' etc.
    -1067    def _scan_formatted_string(self, string_start: str) -> bool:
    -1068        if string_start in self._HEX_STRINGS:
    -1069            delimiters = self._HEX_STRINGS
    -1070            token_type = TokenType.HEX_STRING
    -1071            base = 16
    -1072        elif string_start in self._BIT_STRINGS:
    -1073            delimiters = self._BIT_STRINGS
    -1074            token_type = TokenType.BIT_STRING
    -1075            base = 2
    -1076        elif string_start in self._BYTE_STRINGS:
    -1077            delimiters = self._BYTE_STRINGS
    -1078            token_type = TokenType.BYTE_STRING
    -1079            base = None
    -1080        else:
    -1081            return False
    -1082
    -1083        self._advance(len(string_start))
    -1084        string_end = delimiters[string_start]
    -1085        text = self._extract_string(string_end)
    +1015                while self._peek.strip() and self._peek not in self.SINGLE_TOKENS:
    +1016                    literal += self._peek.upper()
    +1017                    self._advance()
    +1018
    +1019                token_type = self.KEYWORDS.get(self.NUMERIC_LITERALS.get(literal))
    +1020
    +1021                if token_type:
    +1022                    self._add(TokenType.NUMBER, number_text)
    +1023                    self._add(TokenType.DCOLON, "::")
    +1024                    return self._add(token_type, literal)
    +1025                elif self.IDENTIFIER_CAN_START_WITH_DIGIT:
    +1026                    return self._add(TokenType.VAR)
    +1027
    +1028                self._add(TokenType.NUMBER, number_text)
    +1029                return self._advance(-len(literal))
    +1030            else:
    +1031                return self._add(TokenType.NUMBER)
    +1032
    +1033    def _scan_bits(self) -> None:
    +1034        self._advance()
    +1035        value = self._extract_value()
    +1036        try:
    +1037            self._add(TokenType.BIT_STRING, f"{int(value, 2)}")
    +1038        except ValueError:
    +1039            self._add(TokenType.IDENTIFIER)
    +1040
    +1041    def _scan_hex(self) -> None:
    +1042        self._advance()
    +1043        value = self._extract_value()
    +1044        try:
    +1045            self._add(TokenType.HEX_STRING, f"{int(value, 16)}")
    +1046        except ValueError:
    +1047            self._add(TokenType.IDENTIFIER)
    +1048
    +1049    def _extract_value(self) -> str:
    +1050        while True:
    +1051            char = self._peek.strip()
    +1052            if char and char not in self.SINGLE_TOKENS:
    +1053                self._advance()
    +1054            else:
    +1055                break
    +1056
    +1057        return self._text
    +1058
    +1059    def _scan_string(self, quote: str) -> bool:
    +1060        quote_end = self._QUOTES.get(quote)
    +1061        if quote_end is None:
    +1062            return False
    +1063
    +1064        self._advance(len(quote))
    +1065        text = self._extract_string(quote_end)
    +1066        text = text.encode(self.ENCODE).decode(self.ENCODE) if self.ENCODE else text
    +1067        self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text)
    +1068        return True
    +1069
    +1070    # X'1234, b'0110', E'\\\\\' etc.
    +1071    def _scan_formatted_string(self, string_start: str) -> bool:
    +1072        if string_start in self._HEX_STRINGS:
    +1073            delimiters = self._HEX_STRINGS
    +1074            token_type = TokenType.HEX_STRING
    +1075            base = 16
    +1076        elif string_start in self._BIT_STRINGS:
    +1077            delimiters = self._BIT_STRINGS
    +1078            token_type = TokenType.BIT_STRING
    +1079            base = 2
    +1080        elif string_start in self._BYTE_STRINGS:
    +1081            delimiters = self._BYTE_STRINGS
    +1082            token_type = TokenType.BYTE_STRING
    +1083            base = None
    +1084        else:
    +1085            return False
     1086
    -1087        if base is None:
    -1088            self._add(token_type, text)
    -1089        else:
    -1090            try:
    -1091                self._add(token_type, f"{int(text, base)}")
    -1092            except:
    -1093                raise RuntimeError(
    -1094                    f"Numeric string contains invalid characters from {self._line}:{self._start}"
    -1095                )
    -1096
    -1097        return True
    -1098
    -1099    def _scan_identifier(self, identifier_end: str) -> None:
    -1100        text = ""
    -1101        identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES
    +1087        self._advance(len(string_start))
    +1088        string_end = delimiters[string_start]
    +1089        text = self._extract_string(string_end)
    +1090
    +1091        if base is None:
    +1092            self._add(token_type, text)
    +1093        else:
    +1094            try:
    +1095                self._add(token_type, f"{int(text, base)}")
    +1096            except:
    +1097                raise RuntimeError(
    +1098                    f"Numeric string contains invalid characters from {self._line}:{self._start}"
    +1099                )
    +1100
    +1101        return True
     1102
    -1103        while True:
    -1104            if self._end:
    -1105                raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}")
    +1103    def _scan_identifier(self, identifier_end: str) -> None:
    +1104        text = ""
    +1105        identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES
     1106
    -1107            self._advance()
    -1108            if self._char == identifier_end:
    -1109                if identifier_end_is_escape and self._peek == identifier_end:
    -1110                    text += identifier_end
    -1111                    self._advance()
    -1112                    continue
    -1113
    -1114                break
    -1115
    -1116            text += self._char
    +1107        while True:
    +1108            if self._end:
    +1109                raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}")
    +1110
    +1111            self._advance()
    +1112            if self._char == identifier_end:
    +1113                if identifier_end_is_escape and self._peek == identifier_end:
    +1114                    text += identifier_end
    +1115                    self._advance()
    +1116                    continue
     1117
    -1118        self._add(TokenType.IDENTIFIER, text)
    +1118                break
     1119
    -1120    def _scan_var(self) -> None:
    -1121        while True:
    -1122            char = self._peek.strip()
    -1123            if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS):
    -1124                self._advance()
    -1125            else:
    -1126                break
    -1127        self._add(
    -1128            TokenType.VAR
    -1129            if self._prev_token_type == TokenType.PARAMETER
    -1130            else self.KEYWORDS.get(self._text.upper(), TokenType.VAR)
    -1131        )
    -1132
    -1133    def _extract_string(self, delimiter: str) -> str:
    -1134        text = ""
    -1135        delim_size = len(delimiter)
    +1120            text += self._char
    +1121
    +1122        self._add(TokenType.IDENTIFIER, text)
    +1123
    +1124    def _scan_var(self) -> None:
    +1125        while True:
    +1126            char = self._peek.strip()
    +1127            if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS):
    +1128                self._advance()
    +1129            else:
    +1130                break
    +1131        self._add(
    +1132            TokenType.VAR
    +1133            if self._prev_token_type == TokenType.PARAMETER
    +1134            else self.KEYWORDS.get(self._text.upper(), TokenType.VAR)
    +1135        )
     1136
    -1137        while True:
    -1138            if self._char in self._STRING_ESCAPES and (
    -1139                self._peek == delimiter or self._peek in self._STRING_ESCAPES
    -1140            ):
    -1141                if self._peek == delimiter:
    -1142                    text += self._peek
    -1143                else:
    -1144                    text += self._char + self._peek
    -1145
    -1146                if self._current + 1 < self.size:
    -1147                    self._advance(2)
    -1148                else:
    -1149                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}")
    -1150            else:
    -1151                if self._chars(delim_size) == delimiter:
    -1152                    if delim_size > 1:
    -1153                        self._advance(delim_size - 1)
    -1154                    break
    -1155
    -1156                if self._end:
    -1157                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}")
    -1158                text += self._char
    -1159                self._advance()
    -1160
    -1161        return text
    +1137    def _extract_string(self, delimiter: str) -> str:
    +1138        text = ""
    +1139        delim_size = len(delimiter)
    +1140
    +1141        while True:
    +1142            if self._char in self._STRING_ESCAPES and (
    +1143                self._peek == delimiter or self._peek in self._STRING_ESCAPES
    +1144            ):
    +1145                if self._peek == delimiter:
    +1146                    text += self._peek
    +1147                else:
    +1148                    text += self._char + self._peek
    +1149
    +1150                if self._current + 1 < self.size:
    +1151                    self._advance(2)
    +1152                else:
    +1153                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._current}")
    +1154            else:
    +1155                if self._chars(delim_size) == delimiter:
    +1156                    if delim_size > 1:
    +1157                        self._advance(delim_size - 1)
    +1158                    break
    +1159
    +1160                if self._end:
    +1161                    raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}")
    +1162                text += self._char
    +1163                self._advance()
    +1164
    +1165        return text
     
    @@ -7050,22 +7088,22 @@
    -
    781    def reset(self) -> None:
    -782        self.sql = ""
    -783        self.size = 0
    -784        self.tokens: t.List[Token] = []
    -785        self._start = 0
    -786        self._current = 0
    -787        self._line = 1
    -788        self._col = 1
    -789        self._comments: t.List[str] = []
    -790
    -791        self._char = ""
    -792        self._end = False
    -793        self._peek = ""
    -794        self._prev_token_line = -1
    -795        self._prev_token_comments: t.List[str] = []
    -796        self._prev_token_type: t.Optional[TokenType] = None
    +            
    785    def reset(self) -> None:
    +786        self.sql = ""
    +787        self.size = 0
    +788        self.tokens: t.List[Token] = []
    +789        self._start = 0
    +790        self._current = 0
    +791        self._line = 1
    +792        self._col = 1
    +793        self._comments: t.List[str] = []
    +794
    +795        self._char = ""
    +796        self._end = False
    +797        self._peek = ""
    +798        self._prev_token_line = -1
    +799        self._prev_token_comments: t.List[str] = []
    +800        self._prev_token_type: t.Optional[TokenType] = None
     
    @@ -7083,22 +7121,22 @@
    -
    798    def tokenize(self, sql: str) -> t.List[Token]:
    -799        """Returns a list of tokens corresponding to the SQL string `sql`."""
    -800        self.reset()
    -801        self.sql = sql
    -802        self.size = len(sql)
    -803        try:
    -804            self._scan()
    -805        except Exception as e:
    -806            start = self._current - 50
    -807            end = self._current + 50
    -808            start = start if start > 0 else 0
    -809            end = end if end < self.size else self.size - 1
    -810            context = self.sql[start:end]
    -811            raise ValueError(f"Error tokenizing '{context}'") from e
    -812
    -813        return self.tokens
    +            
    802    def tokenize(self, sql: str) -> t.List[Token]:
    +803        """Returns a list of tokens corresponding to the SQL string `sql`."""
    +804        self.reset()
    +805        self.sql = sql
    +806        self.size = len(sql)
    +807        try:
    +808            self._scan()
    +809        except Exception as e:
    +810            start = self._current - 50
    +811            end = self._current + 50
    +812            start = start if start > 0 else 0
    +813            end = end if end < self.size else self.size - 1
    +814            context = self.sql[start:end]
    +815            raise ValueError(f"Error tokenizing '{context}'") from e
    +816
    +817        return self.tokens
     
    diff --git a/docs/sqlglot/transforms.html b/docs/sqlglot/transforms.html index 9694adf..a077ed0 100644 --- a/docs/sqlglot/transforms.html +++ b/docs/sqlglot/transforms.html @@ -200,154 +200,135 @@
    121 Some dialects only allow the precision for parameterized types to be defined in the DDL and not in 122 other expressions. This transforms removes the precision from parameterized types in expressions. 123 """ -124 return expression.transform( -125 lambda node: exp.DataType( -126 **{ -127 **node.args, -128 "expressions": [ -129 node_expression -130 for node_expression in node.expressions -131 if isinstance(node_expression, exp.DataType) -132 ], -133 } -134 ) -135 if isinstance(node, exp.DataType) -136 else node, -137 ) +124 for node in expression.find_all(exp.DataType): +125 node.set("expressions", [e for e in node.expressions if isinstance(e, exp.DataType)]) +126 return expression +127 +128 +129def unnest_to_explode(expression: exp.Expression) -> exp.Expression: +130 """Convert cross join unnest into lateral view explode (used in presto -> hive).""" +131 if isinstance(expression, exp.Select): +132 for join in expression.args.get("joins") or []: +133 unnest = join.this +134 +135 if isinstance(unnest, exp.Unnest): +136 alias = unnest.args.get("alias") +137 udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode 138 -139 -140def unnest_to_explode(expression: exp.Expression) -> exp.Expression: -141 """Convert cross join unnest into lateral view explode (used in presto -> hive).""" -142 if isinstance(expression, exp.Select): -143 for join in expression.args.get("joins") or []: -144 unnest = join.this -145 -146 if isinstance(unnest, exp.Unnest): -147 alias = unnest.args.get("alias") -148 udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode -149 -150 expression.args["joins"].remove(join) +139 expression.args["joins"].remove(join) +140 +141 for e, column in zip(unnest.expressions, alias.columns if alias else []): +142 expression.append( +143 "laterals", +144 exp.Lateral( +145 this=udtf(this=e), +146 view=True, +147 alias=exp.TableAlias(this=alias.this, columns=[column]), # type: ignore +148 ), +149 ) +150 return expression 151 -152 for e, column in zip(unnest.expressions, alias.columns if alias else []): -153 expression.append( -154 "laterals", -155 exp.Lateral( -156 this=udtf(this=e), -157 view=True, -158 alias=exp.TableAlias(this=alias.this, columns=[column]), # type: ignore -159 ), -160 ) -161 return expression -162 +152 +153def explode_to_unnest(expression: exp.Expression) -> exp.Expression: +154 """Convert explode/posexplode into unnest (used in hive -> presto).""" +155 if isinstance(expression, exp.Select): +156 from sqlglot.optimizer.scope import build_scope +157 +158 taken_select_names = set(expression.named_selects) +159 taken_source_names = set(build_scope(expression).selected_sources) +160 +161 for select in expression.selects: +162 to_replace = select 163 -164def explode_to_unnest(expression: exp.Expression) -> exp.Expression: -165 """Convert explode/posexplode into unnest (used in hive -> presto).""" -166 if isinstance(expression, exp.Select): -167 from sqlglot.optimizer.scope import build_scope -168 -169 taken_select_names = set(expression.named_selects) -170 taken_source_names = set(build_scope(expression).selected_sources) -171 -172 for select in expression.selects: -173 to_replace = select +164 pos_alias = "" +165 explode_alias = "" +166 +167 if isinstance(select, exp.Alias): +168 explode_alias = select.alias +169 select = select.this +170 elif isinstance(select, exp.Aliases): +171 pos_alias = select.aliases[0].name +172 explode_alias = select.aliases[1].name +173 select = select.this 174 -175 pos_alias = "" -176 explode_alias = "" +175 if isinstance(select, (exp.Explode, exp.Posexplode)): +176 is_posexplode = isinstance(select, exp.Posexplode) 177 -178 if isinstance(select, exp.Alias): -179 explode_alias = select.alias -180 select = select.this -181 elif isinstance(select, exp.Aliases): -182 pos_alias = select.aliases[0].name -183 explode_alias = select.aliases[1].name -184 select = select.this -185 -186 if isinstance(select, (exp.Explode, exp.Posexplode)): -187 is_posexplode = isinstance(select, exp.Posexplode) -188 -189 explode_arg = select.this -190 unnest = exp.Unnest(expressions=[explode_arg.copy()], ordinality=is_posexplode) +178 explode_arg = select.this +179 unnest = exp.Unnest(expressions=[explode_arg.copy()], ordinality=is_posexplode) +180 +181 # This ensures that we won't use [POS]EXPLODE's argument as a new selection +182 if isinstance(explode_arg, exp.Column): +183 taken_select_names.add(explode_arg.output_name) +184 +185 unnest_source_alias = find_new_name(taken_source_names, "_u") +186 taken_source_names.add(unnest_source_alias) +187 +188 if not explode_alias: +189 explode_alias = find_new_name(taken_select_names, "col") +190 taken_select_names.add(explode_alias) 191 -192 # This ensures that we won't use [POS]EXPLODE's argument as a new selection -193 if isinstance(explode_arg, exp.Column): -194 taken_select_names.add(explode_arg.output_name) +192 if is_posexplode: +193 pos_alias = find_new_name(taken_select_names, "pos") +194 taken_select_names.add(pos_alias) 195 -196 unnest_source_alias = find_new_name(taken_source_names, "_u") -197 taken_source_names.add(unnest_source_alias) -198 -199 if not explode_alias: -200 explode_alias = find_new_name(taken_select_names, "col") -201 taken_select_names.add(explode_alias) -202 -203 if is_posexplode: -204 pos_alias = find_new_name(taken_select_names, "pos") -205 taken_select_names.add(pos_alias) -206 -207 if is_posexplode: -208 column_names = [explode_alias, pos_alias] -209 to_replace.pop() -210 expression.select(pos_alias, explode_alias, copy=False) -211 else: -212 column_names = [explode_alias] -213 to_replace.replace(exp.column(explode_alias)) -214 -215 unnest = exp.alias_(unnest, unnest_source_alias, table=column_names) -216 -217 if not expression.args.get("from"): -218 expression.from_(unnest, copy=False) -219 else: -220 expression.join(unnest, join_type="CROSS", copy=False) +196 if is_posexplode: +197 column_names = [explode_alias, pos_alias] +198 to_replace.pop() +199 expression.select(pos_alias, explode_alias, copy=False) +200 else: +201 column_names = [explode_alias] +202 to_replace.replace(exp.column(explode_alias)) +203 +204 unnest = exp.alias_(unnest, unnest_source_alias, table=column_names) +205 +206 if not expression.args.get("from"): +207 expression.from_(unnest, copy=False) +208 else: +209 expression.join(unnest, join_type="CROSS", copy=False) +210 +211 return expression +212 +213 +214def remove_target_from_merge(expression: exp.Expression) -> exp.Expression: +215 """Remove table refs from columns in when statements.""" +216 if isinstance(expression, exp.Merge): +217 alias = expression.this.args.get("alias") +218 targets = {expression.this.this} +219 if alias: +220 targets.add(alias.this) 221 -222 return expression -223 -224 -225def remove_target_from_merge(expression: exp.Expression) -> exp.Expression: -226 """Remove table refs from columns in when statements.""" -227 if isinstance(expression, exp.Merge): -228 alias = expression.this.args.get("alias") -229 targets = {expression.this.this} -230 if alias: -231 targets.add(alias.this) -232 -233 for when in expression.expressions: -234 when.transform( -235 lambda node: exp.column(node.name) -236 if isinstance(node, exp.Column) and node.args.get("table") in targets -237 else node, -238 copy=False, -239 ) -240 return expression +222 for when in expression.expressions: +223 when.transform( +224 lambda node: exp.column(node.name) +225 if isinstance(node, exp.Column) and node.args.get("table") in targets +226 else node, +227 copy=False, +228 ) +229 return expression +230 +231 +232def preprocess( +233 transforms: t.List[t.Callable[[exp.Expression], exp.Expression]], +234) -> t.Callable[[Generator, exp.Expression], str]: +235 """ +236 Creates a new transform by chaining a sequence of transformations and converts the resulting +237 expression to SQL, using an appropriate `Generator.TRANSFORMS` function. +238 +239 Args: +240 transforms: sequence of transform functions. These will be called in order. 241 -242 -243def preprocess( -244 transforms: t.List[t.Callable[[exp.Expression], exp.Expression]], -245) -> t.Callable[[Generator, exp.Expression], str]: -246 """ -247 Creates a new transform by chaining a sequence of transformations and converts the resulting -248 expression to SQL, using an appropriate `Generator.TRANSFORMS` function. -249 -250 Args: -251 transforms: sequence of transform functions. These will be called in order. -252 -253 Returns: -254 Function that can be used as a generator transform. -255 """ -256 -257 def _to_sql(self, expression: exp.Expression) -> str: -258 expression = transforms[0](expression.copy()) -259 for t in transforms[1:]: -260 expression = t(expression) -261 return getattr(self, expression.key + "_sql")(expression) -262 -263 return _to_sql -264 -265 -266UNALIAS_GROUP = {exp.Group: preprocess([unalias_group])} -267ELIMINATE_DISTINCT_ON = {exp.Select: preprocess([eliminate_distinct_on])} -268ELIMINATE_QUALIFY = {exp.Select: preprocess([eliminate_qualify])} -269REMOVE_PRECISION_PARAMETERIZED_TYPES = { -270 exp.Cast: preprocess([remove_precision_parameterized_types]) -271} +242 Returns: +243 Function that can be used as a generator transform. +244 """ +245 +246 def _to_sql(self, expression: exp.Expression) -> str: +247 expression = transforms[0](expression.copy()) +248 for t in transforms[1:]: +249 expression = t(expression) +250 return getattr(self, expression.key + "_sql")(expression) +251 +252 return _to_sql
    @@ -571,20 +552,9 @@ otherwise we won't be able to refer to it in the outer query's WHERE clause.

    122 Some dialects only allow the precision for parameterized types to be defined in the DDL and not in 123 other expressions. This transforms removes the precision from parameterized types in expressions. 124 """ -125 return expression.transform( -126 lambda node: exp.DataType( -127 **{ -128 **node.args, -129 "expressions": [ -130 node_expression -131 for node_expression in node.expressions -132 if isinstance(node_expression, exp.DataType) -133 ], -134 } -135 ) -136 if isinstance(node, exp.DataType) -137 else node, -138 ) +125 for node in expression.find_all(exp.DataType): +126 node.set("expressions", [e for e in node.expressions if isinstance(e, exp.DataType)]) +127 return expression
    @@ -605,28 +575,28 @@ other expressions. This transforms removes the precision from parameterized type
    -
    141def unnest_to_explode(expression: exp.Expression) -> exp.Expression:
    -142    """Convert cross join unnest into lateral view explode (used in presto -> hive)."""
    -143    if isinstance(expression, exp.Select):
    -144        for join in expression.args.get("joins") or []:
    -145            unnest = join.this
    -146
    -147            if isinstance(unnest, exp.Unnest):
    -148                alias = unnest.args.get("alias")
    -149                udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode
    -150
    -151                expression.args["joins"].remove(join)
    -152
    -153                for e, column in zip(unnest.expressions, alias.columns if alias else []):
    -154                    expression.append(
    -155                        "laterals",
    -156                        exp.Lateral(
    -157                            this=udtf(this=e),
    -158                            view=True,
    -159                            alias=exp.TableAlias(this=alias.this, columns=[column]),  # type: ignore
    -160                        ),
    -161                    )
    -162    return expression
    +            
    130def unnest_to_explode(expression: exp.Expression) -> exp.Expression:
    +131    """Convert cross join unnest into lateral view explode (used in presto -> hive)."""
    +132    if isinstance(expression, exp.Select):
    +133        for join in expression.args.get("joins") or []:
    +134            unnest = join.this
    +135
    +136            if isinstance(unnest, exp.Unnest):
    +137                alias = unnest.args.get("alias")
    +138                udtf = exp.Posexplode if unnest.args.get("ordinality") else exp.Explode
    +139
    +140                expression.args["joins"].remove(join)
    +141
    +142                for e, column in zip(unnest.expressions, alias.columns if alias else []):
    +143                    expression.append(
    +144                        "laterals",
    +145                        exp.Lateral(
    +146                            this=udtf(this=e),
    +147                            view=True,
    +148                            alias=exp.TableAlias(this=alias.this, columns=[column]),  # type: ignore
    +149                        ),
    +150                    )
    +151    return expression
     
    @@ -646,65 +616,65 @@ other expressions. This transforms removes the precision from parameterized type
    -
    165def explode_to_unnest(expression: exp.Expression) -> exp.Expression:
    -166    """Convert explode/posexplode into unnest (used in hive -> presto)."""
    -167    if isinstance(expression, exp.Select):
    -168        from sqlglot.optimizer.scope import build_scope
    -169
    -170        taken_select_names = set(expression.named_selects)
    -171        taken_source_names = set(build_scope(expression).selected_sources)
    -172
    -173        for select in expression.selects:
    -174            to_replace = select
    +            
    154def explode_to_unnest(expression: exp.Expression) -> exp.Expression:
    +155    """Convert explode/posexplode into unnest (used in hive -> presto)."""
    +156    if isinstance(expression, exp.Select):
    +157        from sqlglot.optimizer.scope import build_scope
    +158
    +159        taken_select_names = set(expression.named_selects)
    +160        taken_source_names = set(build_scope(expression).selected_sources)
    +161
    +162        for select in expression.selects:
    +163            to_replace = select
    +164
    +165            pos_alias = ""
    +166            explode_alias = ""
    +167
    +168            if isinstance(select, exp.Alias):
    +169                explode_alias = select.alias
    +170                select = select.this
    +171            elif isinstance(select, exp.Aliases):
    +172                pos_alias = select.aliases[0].name
    +173                explode_alias = select.aliases[1].name
    +174                select = select.this
     175
    -176            pos_alias = ""
    -177            explode_alias = ""
    +176            if isinstance(select, (exp.Explode, exp.Posexplode)):
    +177                is_posexplode = isinstance(select, exp.Posexplode)
     178
    -179            if isinstance(select, exp.Alias):
    -180                explode_alias = select.alias
    -181                select = select.this
    -182            elif isinstance(select, exp.Aliases):
    -183                pos_alias = select.aliases[0].name
    -184                explode_alias = select.aliases[1].name
    -185                select = select.this
    -186
    -187            if isinstance(select, (exp.Explode, exp.Posexplode)):
    -188                is_posexplode = isinstance(select, exp.Posexplode)
    -189
    -190                explode_arg = select.this
    -191                unnest = exp.Unnest(expressions=[explode_arg.copy()], ordinality=is_posexplode)
    +179                explode_arg = select.this
    +180                unnest = exp.Unnest(expressions=[explode_arg.copy()], ordinality=is_posexplode)
    +181
    +182                # This ensures that we won't use [POS]EXPLODE's argument as a new selection
    +183                if isinstance(explode_arg, exp.Column):
    +184                    taken_select_names.add(explode_arg.output_name)
    +185
    +186                unnest_source_alias = find_new_name(taken_source_names, "_u")
    +187                taken_source_names.add(unnest_source_alias)
    +188
    +189                if not explode_alias:
    +190                    explode_alias = find_new_name(taken_select_names, "col")
    +191                    taken_select_names.add(explode_alias)
     192
    -193                # This ensures that we won't use [POS]EXPLODE's argument as a new selection
    -194                if isinstance(explode_arg, exp.Column):
    -195                    taken_select_names.add(explode_arg.output_name)
    +193                    if is_posexplode:
    +194                        pos_alias = find_new_name(taken_select_names, "pos")
    +195                        taken_select_names.add(pos_alias)
     196
    -197                unnest_source_alias = find_new_name(taken_source_names, "_u")
    -198                taken_source_names.add(unnest_source_alias)
    -199
    -200                if not explode_alias:
    -201                    explode_alias = find_new_name(taken_select_names, "col")
    -202                    taken_select_names.add(explode_alias)
    -203
    -204                    if is_posexplode:
    -205                        pos_alias = find_new_name(taken_select_names, "pos")
    -206                        taken_select_names.add(pos_alias)
    -207
    -208                if is_posexplode:
    -209                    column_names = [explode_alias, pos_alias]
    -210                    to_replace.pop()
    -211                    expression.select(pos_alias, explode_alias, copy=False)
    -212                else:
    -213                    column_names = [explode_alias]
    -214                    to_replace.replace(exp.column(explode_alias))
    -215
    -216                unnest = exp.alias_(unnest, unnest_source_alias, table=column_names)
    -217
    -218                if not expression.args.get("from"):
    -219                    expression.from_(unnest, copy=False)
    -220                else:
    -221                    expression.join(unnest, join_type="CROSS", copy=False)
    -222
    -223    return expression
    +197                if is_posexplode:
    +198                    column_names = [explode_alias, pos_alias]
    +199                    to_replace.pop()
    +200                    expression.select(pos_alias, explode_alias, copy=False)
    +201                else:
    +202                    column_names = [explode_alias]
    +203                    to_replace.replace(exp.column(explode_alias))
    +204
    +205                unnest = exp.alias_(unnest, unnest_source_alias, table=column_names)
    +206
    +207                if not expression.args.get("from"):
    +208                    expression.from_(unnest, copy=False)
    +209                else:
    +210                    expression.join(unnest, join_type="CROSS", copy=False)
    +211
    +212    return expression
     
    @@ -724,22 +694,22 @@ other expressions. This transforms removes the precision from parameterized type
    -
    226def remove_target_from_merge(expression: exp.Expression) -> exp.Expression:
    -227    """Remove table refs from columns in when statements."""
    -228    if isinstance(expression, exp.Merge):
    -229        alias = expression.this.args.get("alias")
    -230        targets = {expression.this.this}
    -231        if alias:
    -232            targets.add(alias.this)
    -233
    -234        for when in expression.expressions:
    -235            when.transform(
    -236                lambda node: exp.column(node.name)
    -237                if isinstance(node, exp.Column) and node.args.get("table") in targets
    -238                else node,
    -239                copy=False,
    -240            )
    -241    return expression
    +            
    215def remove_target_from_merge(expression: exp.Expression) -> exp.Expression:
    +216    """Remove table refs from columns in when statements."""
    +217    if isinstance(expression, exp.Merge):
    +218        alias = expression.this.args.get("alias")
    +219        targets = {expression.this.this}
    +220        if alias:
    +221            targets.add(alias.this)
    +222
    +223        for when in expression.expressions:
    +224            when.transform(
    +225                lambda node: exp.column(node.name)
    +226                if isinstance(node, exp.Column) and node.args.get("table") in targets
    +227                else node,
    +228                copy=False,
    +229            )
    +230    return expression
     
    @@ -759,27 +729,27 @@ other expressions. This transforms removes the precision from parameterized type
    -
    244def preprocess(
    -245    transforms: t.List[t.Callable[[exp.Expression], exp.Expression]],
    -246) -> t.Callable[[Generator, exp.Expression], str]:
    -247    """
    -248    Creates a new transform by chaining a sequence of transformations and converts the resulting
    -249    expression to SQL, using an appropriate `Generator.TRANSFORMS` function.
    -250
    -251    Args:
    -252        transforms: sequence of transform functions. These will be called in order.
    -253
    -254    Returns:
    -255        Function that can be used as a generator transform.
    -256    """
    -257
    -258    def _to_sql(self, expression: exp.Expression) -> str:
    -259        expression = transforms[0](expression.copy())
    -260        for t in transforms[1:]:
    -261            expression = t(expression)
    -262        return getattr(self, expression.key + "_sql")(expression)
    -263
    -264    return _to_sql
    +            
    233def preprocess(
    +234    transforms: t.List[t.Callable[[exp.Expression], exp.Expression]],
    +235) -> t.Callable[[Generator, exp.Expression], str]:
    +236    """
    +237    Creates a new transform by chaining a sequence of transformations and converts the resulting
    +238    expression to SQL, using an appropriate `Generator.TRANSFORMS` function.
    +239
    +240    Args:
    +241        transforms: sequence of transform functions. These will be called in order.
    +242
    +243    Returns:
    +244        Function that can be used as a generator transform.
    +245    """
    +246
    +247    def _to_sql(self, expression: exp.Expression) -> str:
    +248        expression = transforms[0](expression.copy())
    +249        for t in transforms[1:]:
    +250            expression = t(expression)
    +251        return getattr(self, expression.key + "_sql")(expression)
    +252
    +253    return _to_sql
     
    diff --git a/sqlglot/__init__.py b/sqlglot/__init__.py index 42d89d1..f7440e0 100644 --- a/sqlglot/__init__.py +++ b/sqlglot/__init__.py @@ -50,7 +50,7 @@ if t.TYPE_CHECKING: T = t.TypeVar("T", bound=Expression) -__version__ = "11.7.1" +__version__ = "12.2.0" pretty = False """Whether to format generated SQL by default.""" @@ -181,7 +181,7 @@ def transpile( Returns: The list of transpiled SQL statements. """ - write = write or read if identity else write + write = (read if write is None else write) if identity else write return [ Dialect.get_or_raise(write)().generate(expression, **opts) for expression in parse(sql, read, error_level=error_level) diff --git a/sqlglot/dataframe/sql/functions.py b/sqlglot/dataframe/sql/functions.py index 993d869..71385aa 100644 --- a/sqlglot/dataframe/sql/functions.py +++ b/sqlglot/dataframe/sql/functions.py @@ -747,11 +747,11 @@ def ascii(col: ColumnOrLiteral) -> Column: def base64(col: ColumnOrLiteral) -> Column: - return Column.invoke_anonymous_function(col, "BASE64") + return Column.invoke_expression_over_column(col, expression.ToBase64) def unbase64(col: ColumnOrLiteral) -> Column: - return Column.invoke_anonymous_function(col, "UNBASE64") + return Column.invoke_expression_over_column(col, expression.FromBase64) def ltrim(col: ColumnOrName) -> Column: diff --git a/sqlglot/dialects/__init__.py b/sqlglot/dialects/__init__.py index 191e703..fc34262 100644 --- a/sqlglot/dialects/__init__.py +++ b/sqlglot/dialects/__init__.py @@ -70,6 +70,7 @@ from sqlglot.dialects.presto import Presto from sqlglot.dialects.redshift import Redshift from sqlglot.dialects.snowflake import Snowflake from sqlglot.dialects.spark import Spark +from sqlglot.dialects.spark2 import Spark2 from sqlglot.dialects.sqlite import SQLite from sqlglot.dialects.starrocks import StarRocks from sqlglot.dialects.tableau import Tableau diff --git a/sqlglot/dialects/bigquery.py b/sqlglot/dialects/bigquery.py index 1a88654..9705b35 100644 --- a/sqlglot/dialects/bigquery.py +++ b/sqlglot/dialects/bigquery.py @@ -39,18 +39,26 @@ def _date_add_sql( def _derived_table_values_to_unnest(self: generator.Generator, expression: exp.Values) -> str: if not isinstance(expression.unnest().parent, exp.From): - expression = t.cast(exp.Values, transforms.remove_precision_parameterized_types(expression)) return self.values_sql(expression) - rows = [tuple_exp.expressions for tuple_exp in expression.find_all(exp.Tuple)] - structs = [] - for row in rows: - aliases = [ - exp.alias_(value, column_name) - for value, column_name in zip(row, expression.args["alias"].args["columns"]) - ] - structs.append(exp.Struct(expressions=aliases)) - unnest_exp = exp.Unnest(expressions=[exp.Array(expressions=structs)]) - return self.unnest_sql(unnest_exp) + + alias = expression.args.get("alias") + + structs = [ + exp.Struct( + expressions=[ + exp.alias_(value, column_name) + for value, column_name in zip( + t.expressions, + alias.columns + if alias and alias.columns + else (f"_c{i}" for i in range(len(t.expressions))), + ) + ] + ) + for t in expression.find_all(exp.Tuple) + ] + + return self.unnest_sql(exp.Unnest(expressions=[exp.Array(expressions=structs)])) def _returnsproperty_sql(self: generator.Generator, expression: exp.ReturnsProperty) -> str: @@ -128,6 +136,7 @@ class BigQuery(Dialect): IDENTIFIERS = ["`"] STRING_ESCAPES = ["\\"] HEX_STRINGS = [("0x", ""), ("0X", "")] + BYTE_STRINGS = [("b'", "'"), ("B'", "'")] KEYWORDS = { **tokens.Tokenizer.KEYWORDS, @@ -139,6 +148,7 @@ class BigQuery(Dialect): "GEOGRAPHY": TokenType.GEOGRAPHY, "FLOAT64": TokenType.DOUBLE, "INT64": TokenType.BIGINT, + "BYTES": TokenType.BINARY, "NOT DETERMINISTIC": TokenType.VOLATILE, "UNKNOWN": TokenType.NULL, } @@ -153,7 +163,7 @@ class BigQuery(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, # type: ignore "DATE_TRUNC": lambda args: exp.DateTrunc( - unit=exp.Literal.string(seq_get(args, 1).name), # type: ignore + unit=exp.Literal.string(str(seq_get(args, 1))), this=seq_get(args, 0), ), "DATE_ADD": parse_date_delta_with_interval(exp.DateAdd), @@ -206,6 +216,12 @@ class BigQuery(Dialect): "NOT DETERMINISTIC": lambda self: self.expression( exp.StabilityProperty, this=exp.Literal.string("VOLATILE") ), + "OPTIONS": lambda self: self._parse_with_property(), + } + + CONSTRAINT_PARSERS = { + **parser.Parser.CONSTRAINT_PARSERS, # type: ignore + "OPTIONS": lambda self: exp.Properties(expressions=self._parse_with_property()), } class Generator(generator.Generator): @@ -217,11 +233,11 @@ class BigQuery(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore - **transforms.REMOVE_PRECISION_PARAMETERIZED_TYPES, # type: ignore exp.ArraySize: rename_func("ARRAY_LENGTH"), exp.AtTimeZone: lambda self, e: self.func( "TIMESTAMP", self.func("DATETIME", e.this, e.args.get("zone")) ), + exp.Cast: transforms.preprocess([transforms.remove_precision_parameterized_types]), exp.DateAdd: _date_add_sql("DATE", "ADD"), exp.DateSub: _date_add_sql("DATE", "SUB"), exp.DatetimeAdd: _date_add_sql("DATETIME", "ADD"), @@ -234,7 +250,9 @@ class BigQuery(Dialect): exp.IntDiv: rename_func("DIV"), exp.Max: max_or_greatest, exp.Min: min_or_least, - exp.Select: transforms.preprocess([_unqualify_unnest]), + exp.Select: transforms.preprocess( + [_unqualify_unnest, transforms.eliminate_distinct_on] + ), exp.StrToTime: lambda self, e: f"PARSE_TIMESTAMP({self.format_time(e)}, {self.sql(e, 'this')})", exp.TimeAdd: _date_add_sql("TIME", "ADD"), exp.TimeSub: _date_add_sql("TIME", "SUB"), @@ -259,6 +277,7 @@ class BigQuery(Dialect): **generator.Generator.TYPE_MAPPING, # type: ignore exp.DataType.Type.BIGDECIMAL: "BIGNUMERIC", exp.DataType.Type.BIGINT: "INT64", + exp.DataType.Type.BINARY: "BYTES", exp.DataType.Type.BOOLEAN: "BOOL", exp.DataType.Type.CHAR: "STRING", exp.DataType.Type.DECIMAL: "NUMERIC", @@ -272,6 +291,7 @@ class BigQuery(Dialect): exp.DataType.Type.TIMESTAMP: "DATETIME", exp.DataType.Type.TIMESTAMPTZ: "TIMESTAMP", exp.DataType.Type.TINYINT: "INT64", + exp.DataType.Type.VARBINARY: "BYTES", exp.DataType.Type.VARCHAR: "STRING", exp.DataType.Type.VARIANT: "ANY TYPE", } @@ -310,3 +330,6 @@ class BigQuery(Dialect): if not expression.args.get("distinct", False): self.unsupported("INTERSECT without DISTINCT is not supported in BigQuery") return f"INTERSECT{' DISTINCT' if expression.args.get('distinct') else ' ALL'}" + + def with_properties(self, properties: exp.Properties) -> str: + return self.properties(properties, prefix=self.seg("OPTIONS")) diff --git a/sqlglot/dialects/clickhouse.py b/sqlglot/dialects/clickhouse.py index e91b0bf..2a49066 100644 --- a/sqlglot/dialects/clickhouse.py +++ b/sqlglot/dialects/clickhouse.py @@ -22,6 +22,8 @@ class ClickHouse(Dialect): class Tokenizer(tokens.Tokenizer): COMMENTS = ["--", "#", "#!", ("/*", "*/")] IDENTIFIERS = ['"', "`"] + BIT_STRINGS = [("0b", "")] + HEX_STRINGS = [("0x", ""), ("0X", "")] KEYWORDS = { **tokens.Tokenizer.KEYWORDS, @@ -31,10 +33,18 @@ class ClickHouse(Dialect): "FINAL": TokenType.FINAL, "FLOAT32": TokenType.FLOAT, "FLOAT64": TokenType.DOUBLE, + "INT8": TokenType.TINYINT, + "UINT8": TokenType.UTINYINT, "INT16": TokenType.SMALLINT, + "UINT16": TokenType.USMALLINT, "INT32": TokenType.INT, + "UINT32": TokenType.UINT, "INT64": TokenType.BIGINT, - "INT8": TokenType.TINYINT, + "UINT64": TokenType.UBIGINT, + "INT128": TokenType.INT128, + "UINT128": TokenType.UINT128, + "INT256": TokenType.INT256, + "UINT256": TokenType.UINT256, "TUPLE": TokenType.STRUCT, } @@ -121,9 +131,17 @@ class ClickHouse(Dialect): exp.DataType.Type.ARRAY: "Array", exp.DataType.Type.STRUCT: "Tuple", exp.DataType.Type.TINYINT: "Int8", + exp.DataType.Type.UTINYINT: "UInt8", exp.DataType.Type.SMALLINT: "Int16", + exp.DataType.Type.USMALLINT: "UInt16", exp.DataType.Type.INT: "Int32", + exp.DataType.Type.UINT: "UInt32", exp.DataType.Type.BIGINT: "Int64", + exp.DataType.Type.UBIGINT: "UInt64", + exp.DataType.Type.INT128: "Int128", + exp.DataType.Type.UINT128: "UInt128", + exp.DataType.Type.INT256: "Int256", + exp.DataType.Type.UINT256: "UInt256", exp.DataType.Type.FLOAT: "Float32", exp.DataType.Type.DOUBLE: "Float64", } diff --git a/sqlglot/dialects/databricks.py b/sqlglot/dialects/databricks.py index 138f26c..51112a0 100644 --- a/sqlglot/dialects/databricks.py +++ b/sqlglot/dialects/databricks.py @@ -1,6 +1,6 @@ from __future__ import annotations -from sqlglot import exp +from sqlglot import exp, transforms from sqlglot.dialects.dialect import parse_date_delta from sqlglot.dialects.spark import Spark from sqlglot.dialects.tsql import generate_date_delta_with_unit_sql @@ -29,13 +29,20 @@ class Databricks(Spark): exp.DateAdd: generate_date_delta_with_unit_sql, exp.DateDiff: generate_date_delta_with_unit_sql, exp.JSONExtract: lambda self, e: self.binary(e, ":"), + exp.Select: transforms.preprocess( + [ + transforms.eliminate_distinct_on, + transforms.unnest_to_explode, + ] + ), exp.ToChar: lambda self, e: self.function_fallback_sql(e), } - TRANSFORMS.pop(exp.Select) # Remove the ELIMINATE_QUALIFY transformation PARAMETER_TOKEN = "$" class Tokenizer(Spark.Tokenizer): + HEX_STRINGS = [] + SINGLE_TOKENS = { **Spark.Tokenizer.SINGLE_TOKENS, "$": TokenType.PARAMETER, diff --git a/sqlglot/dialects/dialect.py b/sqlglot/dialects/dialect.py index 19c6f73..71269f2 100644 --- a/sqlglot/dialects/dialect.py +++ b/sqlglot/dialects/dialect.py @@ -28,6 +28,7 @@ class Dialects(str, Enum): REDSHIFT = "redshift" SNOWFLAKE = "snowflake" SPARK = "spark" + SPARK2 = "spark2" SQLITE = "sqlite" STARROCKS = "starrocks" TABLEAU = "tableau" @@ -69,30 +70,17 @@ class _Dialect(type): klass.tokenizer_class._IDENTIFIERS.items() )[0] - if ( - klass.tokenizer_class._BIT_STRINGS - and exp.BitString not in klass.generator_class.TRANSFORMS - ): - bs_start, bs_end = list(klass.tokenizer_class._BIT_STRINGS.items())[0] - klass.generator_class.TRANSFORMS[ - exp.BitString - ] = lambda self, e: f"{bs_start}{int(self.sql(e, 'this')):b}{bs_end}" - if ( - klass.tokenizer_class._HEX_STRINGS - and exp.HexString not in klass.generator_class.TRANSFORMS - ): - hs_start, hs_end = list(klass.tokenizer_class._HEX_STRINGS.items())[0] - klass.generator_class.TRANSFORMS[ - exp.HexString - ] = lambda self, e: f"{hs_start}{int(self.sql(e, 'this')):X}{hs_end}" - if ( - klass.tokenizer_class._BYTE_STRINGS - and exp.ByteString not in klass.generator_class.TRANSFORMS - ): - be_start, be_end = list(klass.tokenizer_class._BYTE_STRINGS.items())[0] - klass.generator_class.TRANSFORMS[ - exp.ByteString - ] = lambda self, e: f"{be_start}{self.sql(e, 'this')}{be_end}" + klass.bit_start, klass.bit_end = seq_get( + list(klass.tokenizer_class._BIT_STRINGS.items()), 0 + ) or (None, None) + + klass.hex_start, klass.hex_end = seq_get( + list(klass.tokenizer_class._HEX_STRINGS.items()), 0 + ) or (None, None) + + klass.byte_start, klass.byte_end = seq_get( + list(klass.tokenizer_class._BYTE_STRINGS.items()), 0 + ) or (None, None) return klass @@ -198,6 +186,12 @@ class Dialect(metaclass=_Dialect): **{ "quote_start": self.quote_start, "quote_end": self.quote_end, + "bit_start": self.bit_start, + "bit_end": self.bit_end, + "hex_start": self.hex_start, + "hex_end": self.hex_end, + "byte_start": self.byte_start, + "byte_end": self.byte_end, "identifier_start": self.identifier_start, "identifier_end": self.identifier_end, "string_escape": self.tokenizer_class.STRING_ESCAPES[0], diff --git a/sqlglot/dialects/drill.py b/sqlglot/dialects/drill.py index d7e2d88..7ad555e 100644 --- a/sqlglot/dialects/drill.py +++ b/sqlglot/dialects/drill.py @@ -2,7 +2,7 @@ from __future__ import annotations import typing as t -from sqlglot import exp, generator, parser, tokens +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, create_with_partitions_sql, @@ -145,6 +145,7 @@ class Drill(Dialect): exp.StrPosition: str_position_sql, exp.StrToDate: _str_to_date, exp.Pow: rename_func("POW"), + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", exp.TimeStrToDate: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE)", exp.TimeStrToTime: timestrtotime_sql, diff --git a/sqlglot/dialects/duckdb.py b/sqlglot/dialects/duckdb.py index 9454db6..bce956e 100644 --- a/sqlglot/dialects/duckdb.py +++ b/sqlglot/dialects/duckdb.py @@ -1,5 +1,7 @@ from __future__ import annotations +import typing as t + from sqlglot import exp, generator, parser, tokens from sqlglot.dialects.dialect import ( Dialect, @@ -23,52 +25,61 @@ from sqlglot.helper import seq_get from sqlglot.tokens import TokenType -def _ts_or_ds_add(self, expression): +def _ts_or_ds_add_sql(self: generator.Generator, expression: exp.TsOrDsAdd) -> str: this = self.sql(expression, "this") unit = self.sql(expression, "unit").strip("'") or "DAY" return f"CAST({this} AS DATE) + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" -def _date_add(self, expression): +def _date_add_sql(self: generator.Generator, expression: exp.DateAdd) -> str: this = self.sql(expression, "this") unit = self.sql(expression, "unit").strip("'") or "DAY" return f"{this} + {self.sql(exp.Interval(this=expression.expression, unit=unit))}" -def _array_sort_sql(self, expression): +def _array_sort_sql(self: generator.Generator, expression: exp.ArraySort) -> str: if expression.expression: self.unsupported("DUCKDB ARRAY_SORT does not support a comparator") return f"ARRAY_SORT({self.sql(expression, 'this')})" -def _sort_array_sql(self, expression): +def _sort_array_sql(self: generator.Generator, expression: exp.SortArray) -> str: this = self.sql(expression, "this") if expression.args.get("asc") == exp.false(): return f"ARRAY_REVERSE_SORT({this})" return f"ARRAY_SORT({this})" -def _sort_array_reverse(args): +def _sort_array_reverse(args: t.Sequence) -> exp.Expression: return exp.SortArray(this=seq_get(args, 0), asc=exp.false()) -def _struct_sql(self, expression): +def _parse_date_diff(args: t.Sequence) -> exp.Expression: + return exp.DateDiff( + this=seq_get(args, 2), + expression=seq_get(args, 1), + unit=seq_get(args, 0), + ) + + +def _struct_sql(self: generator.Generator, expression: exp.Struct) -> str: args = [ f"'{e.name or e.this.name}': {self.sql(e, 'expression')}" for e in expression.expressions ] return f"{{{', '.join(args)}}}" -def _datatype_sql(self, expression): +def _datatype_sql(self: generator.Generator, expression: exp.DataType) -> str: if expression.this == exp.DataType.Type.ARRAY: return f"{self.expressions(expression, flat=True)}[]" return self.datatype_sql(expression) -def _regexp_extract_sql(self, expression): +def _regexp_extract_sql(self: generator.Generator, expression: exp.RegexpExtract) -> str: bad_args = list(filter(expression.args.get, ("position", "occurrence"))) if bad_args: self.unsupported(f"REGEXP_EXTRACT does not support arg(s) {bad_args}") + return self.func( "REGEXP_EXTRACT", expression.args.get("this"), @@ -108,6 +119,8 @@ class DuckDB(Dialect): "ARRAY_LENGTH": exp.ArraySize.from_arg_list, "ARRAY_SORT": exp.SortArray.from_arg_list, "ARRAY_REVERSE_SORT": _sort_array_reverse, + "DATEDIFF": _parse_date_diff, + "DATE_DIFF": _parse_date_diff, "EPOCH": exp.TimeToUnix.from_arg_list, "EPOCH_MS": lambda args: exp.UnixToTime( this=exp.Div( @@ -115,18 +128,18 @@ class DuckDB(Dialect): expression=exp.Literal.number(1000), ) ), - "LIST_SORT": exp.SortArray.from_arg_list, "LIST_REVERSE_SORT": _sort_array_reverse, + "LIST_SORT": exp.SortArray.from_arg_list, "LIST_VALUE": exp.Array.from_arg_list, "REGEXP_MATCHES": exp.RegexpLike.from_arg_list, "STRFTIME": format_time_lambda(exp.TimeToStr, "duckdb"), - "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), - "STR_SPLIT": exp.Split.from_arg_list, "STRING_SPLIT": exp.Split.from_arg_list, - "STRING_TO_ARRAY": exp.Split.from_arg_list, - "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, "STRING_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, + "STRING_TO_ARRAY": exp.Split.from_arg_list, + "STRPTIME": format_time_lambda(exp.StrToTime, "duckdb"), "STRUCT_PACK": exp.Struct.from_arg_list, + "STR_SPLIT": exp.Split.from_arg_list, + "STR_SPLIT_REGEX": exp.RegexpSplit.from_arg_list, "TO_TIMESTAMP": exp.UnixToTime.from_arg_list, "UNNEST": exp.Explode.from_arg_list, } @@ -142,10 +155,11 @@ class DuckDB(Dialect): class Generator(generator.Generator): JOIN_HINTS = False TABLE_HINTS = False + LIMIT_FETCH = "LIMIT" STRUCT_DELIMITER = ("(", ")") TRANSFORMS = { - **generator.Generator.TRANSFORMS, # type: ignore + **generator.Generator.TRANSFORMS, exp.ApproxDistinct: approx_count_distinct_sql, exp.Array: lambda self, e: self.func("ARRAY", e.expressions[0]) if isinstance(seq_get(e.expressions, 0), exp.Select) @@ -154,13 +168,16 @@ class DuckDB(Dialect): exp.ArraySort: _array_sort_sql, exp.ArraySum: rename_func("LIST_SUM"), exp.CommentColumnConstraint: no_comment_column_constraint_sql, + exp.CurrentDate: lambda self, e: "CURRENT_DATE", + exp.CurrentTime: lambda self, e: "CURRENT_TIME", + exp.CurrentTimestamp: lambda self, e: "CURRENT_TIMESTAMP", exp.DayOfMonth: rename_func("DAYOFMONTH"), exp.DayOfWeek: rename_func("DAYOFWEEK"), exp.DayOfYear: rename_func("DAYOFYEAR"), exp.DataType: _datatype_sql, - exp.DateAdd: _date_add, + exp.DateAdd: _date_add_sql, exp.DateDiff: lambda self, e: self.func( - "DATE_DIFF", e.args.get("unit") or exp.Literal.string("day"), e.expression, e.this + "DATE_DIFF", f"'{e.args.get('unit', 'day')}'", e.expression, e.this ), exp.DateStrToDate: datestrtodate_sql, exp.DateToDi: lambda self, e: f"CAST(STRFTIME({self.sql(e, 'this')}, {DuckDB.dateint_format}) AS INT)", @@ -192,7 +209,7 @@ class DuckDB(Dialect): exp.TimeToStr: lambda self, e: f"STRFTIME({self.sql(e, 'this')}, {self.format_time(e)})", exp.TimeToUnix: rename_func("EPOCH"), exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS TEXT), '-', ''), 1, 8) AS INT)", - exp.TsOrDsAdd: _ts_or_ds_add, + exp.TsOrDsAdd: _ts_or_ds_add_sql, exp.TsOrDsToDate: ts_or_ds_to_date_sql("duckdb"), exp.UnixToStr: lambda self, e: f"STRFTIME(TO_TIMESTAMP({self.sql(e, 'this')}), {self.format_time(e)})", exp.UnixToTime: rename_func("TO_TIMESTAMP"), @@ -201,7 +218,7 @@ class DuckDB(Dialect): } TYPE_MAPPING = { - **generator.Generator.TYPE_MAPPING, # type: ignore + **generator.Generator.TYPE_MAPPING, exp.DataType.Type.BINARY: "BLOB", exp.DataType.Type.CHAR: "TEXT", exp.DataType.Type.FLOAT: "REAL", @@ -212,17 +229,14 @@ class DuckDB(Dialect): exp.DataType.Type.VARCHAR: "TEXT", } - STAR_MAPPING = { - **generator.Generator.STAR_MAPPING, - "except": "EXCLUDE", - } + STAR_MAPPING = {**generator.Generator.STAR_MAPPING, "except": "EXCLUDE"} PROPERTIES_LOCATION = { **generator.Generator.PROPERTIES_LOCATION, # type: ignore exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, } - LIMIT_FETCH = "LIMIT" - - def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: - return super().tablesample_sql(expression, seed_prefix="REPEATABLE") + def tablesample_sql( + self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS " + ) -> str: + return super().tablesample_sql(expression, seed_prefix="REPEATABLE", sep=sep) diff --git a/sqlglot/dialects/hive.py b/sqlglot/dialects/hive.py index 6746fcf..871a180 100644 --- a/sqlglot/dialects/hive.py +++ b/sqlglot/dialects/hive.py @@ -81,7 +81,20 @@ def _date_diff_sql(self: generator.Generator, expression: exp.DateDiff) -> str: return f"{diff_sql}{multiplier_sql}" -def _array_sort(self: generator.Generator, expression: exp.ArraySort) -> str: +def _json_format_sql(self: generator.Generator, expression: exp.JSONFormat) -> str: + this = expression.this + + if not this.type: + from sqlglot.optimizer.annotate_types import annotate_types + + annotate_types(this) + + if this.type.is_type(exp.DataType.Type.JSON): + return self.sql(this) + return self.func("TO_JSON", this, expression.args.get("options")) + + +def _array_sort_sql(self: generator.Generator, expression: exp.ArraySort) -> str: if expression.expression: self.unsupported("Hive SORT_ARRAY does not support a comparator") return f"SORT_ARRAY({self.sql(expression, 'this')})" @@ -91,11 +104,11 @@ def _property_sql(self: generator.Generator, expression: exp.Property) -> str: return f"'{expression.name}'={self.sql(expression, 'value')}" -def _str_to_unix(self: generator.Generator, expression: exp.StrToUnix) -> str: +def _str_to_unix_sql(self: generator.Generator, expression: exp.StrToUnix) -> str: return self.func("UNIX_TIMESTAMP", expression.this, _time_format(self, expression)) -def _str_to_date(self: generator.Generator, expression: exp.StrToDate) -> str: +def _str_to_date_sql(self: generator.Generator, expression: exp.StrToDate) -> str: this = self.sql(expression, "this") time_format = self.format_time(expression) if time_format not in (Hive.time_format, Hive.date_format): @@ -103,7 +116,7 @@ def _str_to_date(self: generator.Generator, expression: exp.StrToDate) -> str: return f"CAST({this} AS DATE)" -def _str_to_time(self: generator.Generator, expression: exp.StrToTime) -> str: +def _str_to_time_sql(self: generator.Generator, expression: exp.StrToTime) -> str: this = self.sql(expression, "this") time_format = self.format_time(expression) if time_format not in (Hive.time_format, Hive.date_format): @@ -214,6 +227,7 @@ class Hive(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, # type: ignore "APPROX_COUNT_DISTINCT": exp.ApproxDistinct.from_arg_list, + "BASE64": exp.ToBase64.from_arg_list, "COLLECT_LIST": exp.ArrayAgg.from_arg_list, "DATE_ADD": lambda args: exp.TsOrDsAdd( this=seq_get(args, 0), @@ -251,6 +265,7 @@ class Hive(Dialect): "SPLIT": exp.RegexpSplit.from_arg_list, "TO_DATE": format_time_lambda(exp.TsOrDsToDate, "hive"), "TO_JSON": exp.JSONFormat.from_arg_list, + "UNBASE64": exp.FromBase64.from_arg_list, "UNIX_TIMESTAMP": format_time_lambda(exp.StrToUnix, "hive", True), "YEAR": lambda args: exp.Year(this=exp.TsOrDsToDate.from_arg_list(args)), } @@ -280,16 +295,20 @@ class Hive(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore - **transforms.UNALIAS_GROUP, # type: ignore - **transforms.ELIMINATE_QUALIFY, # type: ignore + exp.Group: transforms.preprocess([transforms.unalias_group]), exp.Select: transforms.preprocess( - [transforms.eliminate_qualify, transforms.unnest_to_explode] + [ + transforms.eliminate_qualify, + transforms.eliminate_distinct_on, + transforms.unnest_to_explode, + ] ), exp.Property: _property_sql, exp.ApproxDistinct: approx_count_distinct_sql, exp.ArrayConcat: rename_func("CONCAT"), + exp.ArrayJoin: lambda self, e: self.func("CONCAT_WS", e.expression, e.this), exp.ArraySize: rename_func("SIZE"), - exp.ArraySort: _array_sort, + exp.ArraySort: _array_sort_sql, exp.With: no_recursive_cte_sql, exp.DateAdd: _add_date_sql, exp.DateDiff: _date_diff_sql, @@ -298,12 +317,13 @@ class Hive(Dialect): exp.DateToDi: lambda self, e: f"CAST(DATE_FORMAT({self.sql(e, 'this')}, {Hive.dateint_format}) AS INT)", exp.DiToDate: lambda self, e: f"TO_DATE(CAST({self.sql(e, 'this')} AS STRING), {Hive.dateint_format})", exp.FileFormatProperty: lambda self, e: f"STORED AS {self.sql(e, 'this') if isinstance(e.this, exp.InputOutputFormat) else e.name.upper()}", + exp.FromBase64: rename_func("UNBASE64"), exp.If: if_sql, exp.Index: _index_sql, exp.ILike: no_ilike_sql, exp.JSONExtract: rename_func("GET_JSON_OBJECT"), exp.JSONExtractScalar: rename_func("GET_JSON_OBJECT"), - exp.JSONFormat: rename_func("TO_JSON"), + exp.JSONFormat: _json_format_sql, exp.Map: var_map_sql, exp.Max: max_or_greatest, exp.Min: min_or_least, @@ -318,9 +338,9 @@ class Hive(Dialect): exp.SetAgg: rename_func("COLLECT_SET"), exp.Split: lambda self, e: f"SPLIT({self.sql(e, 'this')}, CONCAT('\\\\Q', {self.sql(e, 'expression')}))", exp.StrPosition: strposition_to_locate_sql, - exp.StrToDate: _str_to_date, - exp.StrToTime: _str_to_time, - exp.StrToUnix: _str_to_unix, + exp.StrToDate: _str_to_date_sql, + exp.StrToTime: _str_to_time_sql, + exp.StrToUnix: _str_to_unix_sql, exp.StructExtract: struct_extract_sql, exp.TableFormatProperty: lambda self, e: f"USING {self.sql(e, 'this')}", exp.TimeStrToDate: rename_func("TO_DATE"), @@ -328,6 +348,7 @@ class Hive(Dialect): exp.TimeStrToUnix: rename_func("UNIX_TIMESTAMP"), exp.TimeToStr: _time_to_str, exp.TimeToUnix: rename_func("UNIX_TIMESTAMP"), + exp.ToBase64: rename_func("BASE64"), exp.TsOrDiToDi: lambda self, e: f"CAST(SUBSTR(REPLACE(CAST({self.sql(e, 'this')} AS STRING), '-', ''), 1, 8) AS INT)", exp.TsOrDsAdd: lambda self, e: f"DATE_ADD({self.sql(e, 'this')}, {self.sql(e, 'expression')})", exp.TsOrDsToDate: _to_date_sql, diff --git a/sqlglot/dialects/mysql.py b/sqlglot/dialects/mysql.py index 666e740..5342624 100644 --- a/sqlglot/dialects/mysql.py +++ b/sqlglot/dialects/mysql.py @@ -1,6 +1,6 @@ from __future__ import annotations -from sqlglot import exp, generator, parser, tokens +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, arrow_json_extract_scalar_sql, @@ -403,6 +403,7 @@ class MySQL(Dialect): exp.Min: min_or_least, exp.NullSafeEQ: lambda self, e: self.binary(e, "<=>"), exp.NullSafeNEQ: lambda self, e: self.not_sql(self.binary(e, "<=>")), + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.StrPosition: strposition_to_locate_sql, exp.StrToDate: _str_to_date_sql, exp.StrToTime: _str_to_date_sql, diff --git a/sqlglot/dialects/oracle.py b/sqlglot/dialects/oracle.py index 9ccd02e..c8af1c6 100644 --- a/sqlglot/dialects/oracle.py +++ b/sqlglot/dialects/oracle.py @@ -34,6 +34,8 @@ def _parse_xml_table(self) -> exp.XMLTable: class Oracle(Dialect): + alias_post_tablesample = True + # https://docs.oracle.com/database/121/SQLRF/sql_elements004.htm#SQLRF00212 # https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes time_mapping = { @@ -121,21 +123,23 @@ class Oracle(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore - **transforms.UNALIAS_GROUP, # type: ignore exp.DateStrToDate: lambda self, e: self.func( "TO_DATE", e.this, exp.Literal.string("YYYY-MM-DD") ), + exp.Group: transforms.preprocess([transforms.unalias_group]), exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", exp.ILike: no_ilike_sql, + exp.IfNull: rename_func("NVL"), + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", exp.Subquery: lambda self, e: self.subquery_sql(e, sep=" "), exp.Substring: rename_func("SUBSTR"), exp.Table: lambda self, e: self.table_sql(e, sep=" "), + exp.TableSample: lambda self, e: self.tablesample_sql(e, sep=" "), exp.TimeToStr: lambda self, e: f"TO_CHAR({self.sql(e, 'this')}, {self.format_time(e)})", exp.ToChar: lambda self, e: self.function_fallback_sql(e), exp.Trim: trim_sql, exp.UnixToTime: lambda self, e: f"TO_DATE('1970-01-01','YYYY-MM-DD') + ({self.sql(e, 'this')} / 86400)", - exp.IfNull: rename_func("NVL"), } PROPERTIES_LOCATION = { @@ -164,14 +168,19 @@ class Oracle(Dialect): return f"XMLTABLE({self.sep('')}{self.indent(this + passing + by_ref + columns)}{self.seg(')', sep='')}" class Tokenizer(tokens.Tokenizer): + VAR_SINGLE_TOKENS = {"@"} + KEYWORDS = { **tokens.Tokenizer.KEYWORDS, "(+)": TokenType.JOIN_MARKER, + "BINARY_DOUBLE": TokenType.DOUBLE, + "BINARY_FLOAT": TokenType.FLOAT, "COLUMNS": TokenType.COLUMN, "MATCH_RECOGNIZE": TokenType.MATCH_RECOGNIZE, "MINUS": TokenType.EXCEPT, "NVARCHAR2": TokenType.NVARCHAR, "RETURNING": TokenType.RETURNING, + "SAMPLE": TokenType.TABLE_SAMPLE, "START": TokenType.BEGIN, "TOP": TokenType.TOP, "VARCHAR2": TokenType.VARCHAR, diff --git a/sqlglot/dialects/postgres.py b/sqlglot/dialects/postgres.py index c47ff51..2132778 100644 --- a/sqlglot/dialects/postgres.py +++ b/sqlglot/dialects/postgres.py @@ -1,6 +1,8 @@ from __future__ import annotations -from sqlglot import exp, generator, parser, tokens +import typing as t + +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, arrow_json_extract_scalar_sql, @@ -20,7 +22,6 @@ from sqlglot.dialects.dialect import ( from sqlglot.helper import seq_get from sqlglot.parser import binary_range_parser from sqlglot.tokens import TokenType -from sqlglot.transforms import preprocess, remove_target_from_merge DATE_DIFF_FACTOR = { "MICROSECOND": " * 1000000", @@ -274,8 +275,7 @@ class Postgres(Dialect): TokenType.HASH: exp.BitwiseXor, } - FACTOR = { - **parser.Parser.FACTOR, + EXPONENT = { TokenType.CARET: exp.Pow, } @@ -286,6 +286,12 @@ class Postgres(Dialect): TokenType.LT_AT: binary_range_parser(exp.ArrayContained), } + def _parse_factor(self) -> t.Optional[exp.Expression]: + return self._parse_tokens(self._parse_exponent, self.FACTOR) + + def _parse_exponent(self) -> t.Optional[exp.Expression]: + return self._parse_tokens(self._parse_unary, self.EXPONENT) + def _parse_date_part(self) -> exp.Expression: part = self._parse_type() self._match(TokenType.COMMA) @@ -316,7 +322,7 @@ class Postgres(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore exp.BitwiseXor: lambda self, e: self.binary(e, "#"), - exp.ColumnDef: preprocess( + exp.ColumnDef: transforms.preprocess( [ _auto_increment_to_serial, _serial_to_generated, @@ -341,7 +347,7 @@ class Postgres(Dialect): exp.ArrayOverlaps: lambda self, e: self.binary(e, "&&"), exp.ArrayContains: lambda self, e: self.binary(e, "@>"), exp.ArrayContained: lambda self, e: self.binary(e, "<@"), - exp.Merge: preprocess([remove_target_from_merge]), + exp.Merge: transforms.preprocess([transforms.remove_target_from_merge]), exp.RegexpLike: lambda self, e: self.binary(e, "~"), exp.RegexpILike: lambda self, e: self.binary(e, "~*"), exp.StrPosition: str_position_sql, diff --git a/sqlglot/dialects/presto.py b/sqlglot/dialects/presto.py index 489d439..6133a27 100644 --- a/sqlglot/dialects/presto.py +++ b/sqlglot/dialects/presto.py @@ -130,7 +130,7 @@ def _ts_or_ds_add_sql(self: generator.Generator, expression: exp.TsOrDsAdd) -> s def _sequence_sql(self: generator.Generator, expression: exp.GenerateSeries) -> str: start = expression.args["start"] end = expression.args["end"] - step = expression.args.get("step", 1) # Postgres defaults to 1 for generate_series + step = expression.args.get("step") target_type = None @@ -147,7 +147,11 @@ def _sequence_sql(self: generator.Generator, expression: exp.GenerateSeries) -> else: start = exp.Cast(this=start, to=to) - return self.func("SEQUENCE", start, end, step) + sql = self.func("SEQUENCE", start, end, step) + if isinstance(expression.parent, exp.Table): + sql = f"UNNEST({sql})" + + return sql def _ensure_utf8(charset: exp.Literal) -> None: @@ -204,6 +208,7 @@ class Presto(Dialect): FUNCTIONS = { **parser.Parser.FUNCTIONS, # type: ignore "APPROX_DISTINCT": exp.ApproxDistinct.from_arg_list, + "APPROX_PERCENTILE": _approx_percentile, "CARDINALITY": exp.ArraySize.from_arg_list, "CONTAINS": exp.ArrayContains.from_arg_list, "DATE_ADD": lambda args: exp.DateAdd( @@ -219,23 +224,23 @@ class Presto(Dialect): "DATE_FORMAT": format_time_lambda(exp.TimeToStr, "presto"), "DATE_PARSE": format_time_lambda(exp.StrToTime, "presto"), "DATE_TRUNC": date_trunc_to_time, + "FROM_HEX": exp.Unhex.from_arg_list, "FROM_UNIXTIME": _from_unixtime, + "FROM_UTF8": lambda args: exp.Decode( + this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8") + ), "NOW": exp.CurrentTimestamp.from_arg_list, + "SEQUENCE": exp.GenerateSeries.from_arg_list, "STRPOS": lambda args: exp.StrPosition( this=seq_get(args, 0), substr=seq_get(args, 1), instance=seq_get(args, 2), ), "TO_UNIXTIME": exp.TimeToUnix.from_arg_list, - "APPROX_PERCENTILE": _approx_percentile, - "FROM_HEX": exp.Unhex.from_arg_list, "TO_HEX": exp.Hex.from_arg_list, "TO_UTF8": lambda args: exp.Encode( this=seq_get(args, 0), charset=exp.Literal.string("utf-8") ), - "FROM_UTF8": lambda args: exp.Decode( - this=seq_get(args, 0), replace=seq_get(args, 1), charset=exp.Literal.string("utf-8") - ), } FUNCTION_PARSERS = parser.Parser.FUNCTION_PARSERS.copy() FUNCTION_PARSERS.pop("TRIM") @@ -264,7 +269,6 @@ class Presto(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore - **transforms.UNALIAS_GROUP, # type: ignore exp.ApproxDistinct: _approx_distinct_sql, exp.Array: lambda self, e: f"ARRAY[{self.expressions(e, flat=True)}]", exp.ArrayConcat: rename_func("CONCAT"), @@ -290,6 +294,7 @@ class Presto(Dialect): exp.DiToDate: lambda self, e: f"CAST(DATE_PARSE(CAST({self.sql(e, 'this')} AS VARCHAR), {Presto.dateint_format}) AS DATE)", exp.Encode: _encode_sql, exp.GenerateSeries: _sequence_sql, + exp.Group: transforms.preprocess([transforms.unalias_group]), exp.Hex: rename_func("TO_HEX"), exp.If: if_sql, exp.ILike: no_ilike_sql, @@ -303,7 +308,11 @@ class Presto(Dialect): exp.SafeDivide: no_safe_divide_sql, exp.Schema: _schema_sql, exp.Select: transforms.preprocess( - [transforms.eliminate_qualify, transforms.explode_to_unnest] + [ + transforms.eliminate_qualify, + transforms.eliminate_distinct_on, + transforms.explode_to_unnest, + ] ), exp.SortArray: _no_sort_array, exp.StrPosition: rename_func("STRPOS"), @@ -327,6 +336,9 @@ class Presto(Dialect): exp.UnixToTime: rename_func("FROM_UNIXTIME"), exp.UnixToTimeStr: lambda self, e: f"CAST(FROM_UNIXTIME({self.sql(e, 'this')}) AS VARCHAR)", exp.VariancePop: rename_func("VAR_POP"), + exp.WithinGroup: transforms.preprocess( + [transforms.remove_within_group_for_percentiles] + ), } def interval_sql(self, expression: exp.Interval) -> str: diff --git a/sqlglot/dialects/redshift.py b/sqlglot/dialects/redshift.py index a9c4f62..1b7cf31 100644 --- a/sqlglot/dialects/redshift.py +++ b/sqlglot/dialects/redshift.py @@ -52,6 +52,8 @@ class Redshift(Postgres): return this class Tokenizer(Postgres.Tokenizer): + BIT_STRINGS = [] + HEX_STRINGS = [] STRING_ESCAPES = ["\\"] KEYWORDS = { @@ -90,7 +92,6 @@ class Redshift(Postgres): TRANSFORMS = { **Postgres.Generator.TRANSFORMS, # type: ignore - **transforms.ELIMINATE_DISTINCT_ON, # type: ignore exp.CurrentTimestamp: lambda self, e: "SYSDATE", exp.DateAdd: lambda self, e: self.func( "DATEADD", exp.var(e.text("unit") or "day"), e.expression, e.this @@ -102,6 +103,7 @@ class Redshift(Postgres): exp.DistStyleProperty: lambda self, e: self.naked_property(e), exp.JSONExtract: _json_sql, exp.JSONExtractScalar: _json_sql, + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.SortKeyProperty: lambda self, e: f"{'COMPOUND ' if e.args['compound'] else ''}SORTKEY({self.format_args(*e.this)})", } diff --git a/sqlglot/dialects/snowflake.py b/sqlglot/dialects/snowflake.py index 0829669..70dcaa9 100644 --- a/sqlglot/dialects/snowflake.py +++ b/sqlglot/dialects/snowflake.py @@ -2,7 +2,7 @@ from __future__ import annotations import typing as t -from sqlglot import exp, generator, parser, tokens +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, date_trunc_to_time, @@ -252,6 +252,7 @@ class Snowflake(Dialect): class Tokenizer(tokens.Tokenizer): QUOTES = ["'", "$$"] STRING_ESCAPES = ["\\", "'"] + HEX_STRINGS = [("x'", "'"), ("X'", "'")] KEYWORDS = { **tokens.Tokenizer.KEYWORDS, @@ -305,6 +306,7 @@ class Snowflake(Dialect): exp.Max: max_or_greatest, exp.Min: min_or_least, exp.PartitionedByProperty: lambda self, e: f"PARTITION BY {self.sql(e, 'this')}", + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.StarMap: rename_func("OBJECT_CONSTRUCT"), exp.StrPosition: lambda self, e: self.func( "POSITION", e.args.get("substr"), e.this, e.args.get("position") diff --git a/sqlglot/dialects/spark.py b/sqlglot/dialects/spark.py index a3e4cce..939f2fd 100644 --- a/sqlglot/dialects/spark.py +++ b/sqlglot/dialects/spark.py @@ -2,222 +2,54 @@ from __future__ import annotations import typing as t -from sqlglot import exp, parser -from sqlglot.dialects.dialect import create_with_partitions_sql, rename_func, trim_sql -from sqlglot.dialects.hive import Hive +from sqlglot import exp +from sqlglot.dialects.spark2 import Spark2 from sqlglot.helper import seq_get -def _create_sql(self: Hive.Generator, e: exp.Create) -> str: - kind = e.args["kind"] - properties = e.args.get("properties") +def _parse_datediff(args: t.Sequence) -> exp.Expression: + """ + Although Spark docs don't mention the "unit" argument, Spark3 added support for + it at some point. Databricks also supports this variation (see below). - if kind.upper() == "TABLE" and any( - isinstance(prop, exp.TemporaryProperty) - for prop in (properties.expressions if properties else []) - ): - return f"CREATE TEMPORARY VIEW {self.sql(e, 'this')} AS {self.sql(e, 'expression')}" - return create_with_partitions_sql(self, e) + For example, in spark-sql (v3.3.1): + - SELECT DATEDIFF('2020-01-01', '2020-01-05') results in -4 + - SELECT DATEDIFF(day, '2020-01-01', '2020-01-05') results in 4 + See also: + - https://docs.databricks.com/sql/language-manual/functions/datediff3.html + - https://docs.databricks.com/sql/language-manual/functions/datediff.html + """ + unit = None + this = seq_get(args, 0) + expression = seq_get(args, 1) -def _map_sql(self: Hive.Generator, expression: exp.Map) -> str: - keys = self.sql(expression.args["keys"]) - values = self.sql(expression.args["values"]) - return f"MAP_FROM_ARRAYS({keys}, {values})" + if len(args) == 3: + unit = this + this = args[2] + return exp.DateDiff( + this=exp.TsOrDsToDate(this=this), expression=exp.TsOrDsToDate(this=expression), unit=unit + ) -def _str_to_date(self: Hive.Generator, expression: exp.StrToDate) -> str: - this = self.sql(expression, "this") - time_format = self.format_time(expression) - if time_format == Hive.date_format: - return f"TO_DATE({this})" - return f"TO_DATE({this}, {time_format})" - -def _unix_to_time_sql(self: Hive.Generator, expression: exp.UnixToTime) -> str: - scale = expression.args.get("scale") - timestamp = self.sql(expression, "this") - if scale is None: - return f"FROM_UNIXTIME({timestamp})" - if scale == exp.UnixToTime.SECONDS: - return f"TIMESTAMP_SECONDS({timestamp})" - if scale == exp.UnixToTime.MILLIS: - return f"TIMESTAMP_MILLIS({timestamp})" - if scale == exp.UnixToTime.MICROS: - return f"TIMESTAMP_MICROS({timestamp})" - - raise ValueError("Improper scale for timestamp") - - -class Spark(Hive): - class Parser(Hive.Parser): +class Spark(Spark2): + class Parser(Spark2.Parser): FUNCTIONS = { - **Hive.Parser.FUNCTIONS, # type: ignore - "MAP_FROM_ARRAYS": exp.Map.from_arg_list, - "TO_UNIX_TIMESTAMP": exp.StrToUnix.from_arg_list, - "LEFT": lambda args: exp.Substring( - this=seq_get(args, 0), - start=exp.Literal.number(1), - length=seq_get(args, 1), - ), - "SHIFTLEFT": lambda args: exp.BitwiseLeftShift( - this=seq_get(args, 0), - expression=seq_get(args, 1), - ), - "SHIFTRIGHT": lambda args: exp.BitwiseRightShift( - this=seq_get(args, 0), - expression=seq_get(args, 1), - ), - "RIGHT": lambda args: exp.Substring( - this=seq_get(args, 0), - start=exp.Sub( - this=exp.Length(this=seq_get(args, 0)), - expression=exp.Add(this=seq_get(args, 1), expression=exp.Literal.number(1)), - ), - length=seq_get(args, 1), - ), - "APPROX_PERCENTILE": exp.ApproxQuantile.from_arg_list, - "BOOLEAN": lambda args: exp.Cast( - this=seq_get(args, 0), to=exp.DataType.build("boolean") - ), - "IIF": exp.If.from_arg_list, - "INT": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("int")), - "AGGREGATE": exp.Reduce.from_arg_list, - "DAYOFWEEK": lambda args: exp.DayOfWeek( - this=exp.TsOrDsToDate(this=seq_get(args, 0)), - ), - "DAYOFMONTH": lambda args: exp.DayOfMonth( - this=exp.TsOrDsToDate(this=seq_get(args, 0)), - ), - "DAYOFYEAR": lambda args: exp.DayOfYear( - this=exp.TsOrDsToDate(this=seq_get(args, 0)), - ), - "WEEKOFYEAR": lambda args: exp.WeekOfYear( - this=exp.TsOrDsToDate(this=seq_get(args, 0)), - ), - "DATE": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("date")), - "DATE_TRUNC": lambda args: exp.TimestampTrunc( - this=seq_get(args, 1), - unit=exp.var(seq_get(args, 0)), - ), - "STRING": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("string")), - "TRUNC": lambda args: exp.DateTrunc(unit=seq_get(args, 1), this=seq_get(args, 0)), - "TIMESTAMP": lambda args: exp.Cast( - this=seq_get(args, 0), to=exp.DataType.build("timestamp") - ), - } - - FUNCTION_PARSERS = { - **parser.Parser.FUNCTION_PARSERS, # type: ignore - "BROADCAST": lambda self: self._parse_join_hint("BROADCAST"), - "BROADCASTJOIN": lambda self: self._parse_join_hint("BROADCASTJOIN"), - "MAPJOIN": lambda self: self._parse_join_hint("MAPJOIN"), - "MERGE": lambda self: self._parse_join_hint("MERGE"), - "SHUFFLEMERGE": lambda self: self._parse_join_hint("SHUFFLEMERGE"), - "MERGEJOIN": lambda self: self._parse_join_hint("MERGEJOIN"), - "SHUFFLE_HASH": lambda self: self._parse_join_hint("SHUFFLE_HASH"), - "SHUFFLE_REPLICATE_NL": lambda self: self._parse_join_hint("SHUFFLE_REPLICATE_NL"), - } - - def _parse_add_column(self) -> t.Optional[exp.Expression]: - return self._match_text_seq("ADD", "COLUMNS") and self._parse_schema() - - def _parse_drop_column(self) -> t.Optional[exp.Expression]: - return self._match_text_seq("DROP", "COLUMNS") and self.expression( - exp.Drop, - this=self._parse_schema(), - kind="COLUMNS", - ) - - def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: - # Spark doesn't add a suffix to the pivot columns when there's a single aggregation - if len(pivot_columns) == 1: - return [""] - - names = [] - for agg in pivot_columns: - if isinstance(agg, exp.Alias): - names.append(agg.alias) - else: - """ - This case corresponds to aggregations without aliases being used as suffixes - (e.g. col_avg(foo)). We need to unquote identifiers because they're going to - be quoted in the base parser's `_parse_pivot` method, due to `to_identifier`. - Otherwise, we'd end up with `col_avg(`foo`)` (notice the double quotes). - - Moreover, function names are lowercased in order to mimic Spark's naming scheme. - """ - agg_all_unquoted = agg.transform( - lambda node: exp.Identifier(this=node.name, quoted=False) - if isinstance(node, exp.Identifier) - else node - ) - names.append(agg_all_unquoted.sql(dialect="spark", normalize_functions="lower")) - - return names - - class Generator(Hive.Generator): - TYPE_MAPPING = { - **Hive.Generator.TYPE_MAPPING, # type: ignore - exp.DataType.Type.TINYINT: "BYTE", - exp.DataType.Type.SMALLINT: "SHORT", - exp.DataType.Type.BIGINT: "LONG", - } - - PROPERTIES_LOCATION = { - **Hive.Generator.PROPERTIES_LOCATION, # type: ignore - exp.EngineProperty: exp.Properties.Location.UNSUPPORTED, - exp.AutoIncrementProperty: exp.Properties.Location.UNSUPPORTED, - exp.CharacterSetProperty: exp.Properties.Location.UNSUPPORTED, - exp.CollateProperty: exp.Properties.Location.UNSUPPORTED, - } - - TRANSFORMS = { - **Hive.Generator.TRANSFORMS, # type: ignore - exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"), - exp.FileFormatProperty: lambda self, e: f"USING {e.name.upper()}", - exp.ArraySum: lambda self, e: f"AGGREGATE({self.sql(e, 'this')}, 0, (acc, x) -> acc + x, acc -> acc)", - exp.BitwiseLeftShift: rename_func("SHIFTLEFT"), - exp.BitwiseRightShift: rename_func("SHIFTRIGHT"), - exp.DateTrunc: lambda self, e: self.func("TRUNC", e.this, e.args.get("unit")), - exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", - exp.StrToDate: _str_to_date, - exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", - exp.UnixToTime: _unix_to_time_sql, - exp.Create: _create_sql, - exp.Map: _map_sql, - exp.Reduce: rename_func("AGGREGATE"), - exp.StructKwarg: lambda self, e: f"{self.sql(e, 'this')}: {self.sql(e, 'expression')}", - exp.TimestampTrunc: lambda self, e: self.func( - "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this - ), - exp.Trim: trim_sql, - exp.VariancePop: rename_func("VAR_POP"), - exp.DateFromParts: rename_func("MAKE_DATE"), - exp.LogicalOr: rename_func("BOOL_OR"), - exp.LogicalAnd: rename_func("BOOL_AND"), - exp.DayOfWeek: rename_func("DAYOFWEEK"), - exp.DayOfMonth: rename_func("DAYOFMONTH"), - exp.DayOfYear: rename_func("DAYOFYEAR"), - exp.WeekOfYear: rename_func("WEEKOFYEAR"), - exp.AtTimeZone: lambda self, e: f"FROM_UTC_TIMESTAMP({self.sql(e, 'this')}, {self.sql(e, 'zone')})", + **Spark2.Parser.FUNCTIONS, # type: ignore + "DATEDIFF": _parse_datediff, } - TRANSFORMS.pop(exp.ArraySort) - TRANSFORMS.pop(exp.ILike) - WRAP_DERIVED_VALUES = False - CREATE_FUNCTION_RETURN_AS = False + class Generator(Spark2.Generator): + TRANSFORMS = Spark2.Generator.TRANSFORMS.copy() + TRANSFORMS.pop(exp.DateDiff) - def cast_sql(self, expression: exp.Cast) -> str: - if isinstance(expression.this, exp.Cast) and expression.this.is_type( - exp.DataType.Type.JSON - ): - schema = f"'{self.sql(expression, 'to')}'" - return self.func("FROM_JSON", expression.this.this, schema) - if expression.to.is_type(exp.DataType.Type.JSON): - return self.func("TO_JSON", expression.this) + def datediff_sql(self, expression: exp.DateDiff) -> str: + unit = self.sql(expression, "unit") + end = self.sql(expression, "this") + start = self.sql(expression, "expression") - return super(Spark.Generator, self).cast_sql(expression) + if unit: + return self.func("DATEDIFF", unit, start, end) - class Tokenizer(Hive.Tokenizer): - HEX_STRINGS = [("X'", "'")] + return self.func("DATEDIFF", end, start) diff --git a/sqlglot/dialects/spark2.py b/sqlglot/dialects/spark2.py new file mode 100644 index 0000000..584671f --- /dev/null +++ b/sqlglot/dialects/spark2.py @@ -0,0 +1,238 @@ +from __future__ import annotations + +import typing as t + +from sqlglot import exp, parser, transforms +from sqlglot.dialects.dialect import create_with_partitions_sql, rename_func, trim_sql +from sqlglot.dialects.hive import Hive +from sqlglot.helper import seq_get + + +def _create_sql(self: Hive.Generator, e: exp.Create) -> str: + kind = e.args["kind"] + properties = e.args.get("properties") + + if kind.upper() == "TABLE" and any( + isinstance(prop, exp.TemporaryProperty) + for prop in (properties.expressions if properties else []) + ): + return f"CREATE TEMPORARY VIEW {self.sql(e, 'this')} AS {self.sql(e, 'expression')}" + return create_with_partitions_sql(self, e) + + +def _map_sql(self: Hive.Generator, expression: exp.Map) -> str: + keys = self.sql(expression.args["keys"]) + values = self.sql(expression.args["values"]) + return f"MAP_FROM_ARRAYS({keys}, {values})" + + +def _parse_as_cast(to_type: str) -> t.Callable[[t.Sequence], exp.Expression]: + return lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build(to_type)) + + +def _str_to_date(self: Hive.Generator, expression: exp.StrToDate) -> str: + this = self.sql(expression, "this") + time_format = self.format_time(expression) + if time_format == Hive.date_format: + return f"TO_DATE({this})" + return f"TO_DATE({this}, {time_format})" + + +def _unix_to_time_sql(self: Hive.Generator, expression: exp.UnixToTime) -> str: + scale = expression.args.get("scale") + timestamp = self.sql(expression, "this") + if scale is None: + return f"CAST(FROM_UNIXTIME({timestamp}) AS TIMESTAMP)" + if scale == exp.UnixToTime.SECONDS: + return f"TIMESTAMP_SECONDS({timestamp})" + if scale == exp.UnixToTime.MILLIS: + return f"TIMESTAMP_MILLIS({timestamp})" + if scale == exp.UnixToTime.MICROS: + return f"TIMESTAMP_MICROS({timestamp})" + + raise ValueError("Improper scale for timestamp") + + +class Spark2(Hive): + class Parser(Hive.Parser): + FUNCTIONS = { + **Hive.Parser.FUNCTIONS, # type: ignore + "MAP_FROM_ARRAYS": exp.Map.from_arg_list, + "TO_UNIX_TIMESTAMP": exp.StrToUnix.from_arg_list, + "LEFT": lambda args: exp.Substring( + this=seq_get(args, 0), + start=exp.Literal.number(1), + length=seq_get(args, 1), + ), + "SHIFTLEFT": lambda args: exp.BitwiseLeftShift( + this=seq_get(args, 0), + expression=seq_get(args, 1), + ), + "SHIFTRIGHT": lambda args: exp.BitwiseRightShift( + this=seq_get(args, 0), + expression=seq_get(args, 1), + ), + "RIGHT": lambda args: exp.Substring( + this=seq_get(args, 0), + start=exp.Sub( + this=exp.Length(this=seq_get(args, 0)), + expression=exp.Add(this=seq_get(args, 1), expression=exp.Literal.number(1)), + ), + length=seq_get(args, 1), + ), + "APPROX_PERCENTILE": exp.ApproxQuantile.from_arg_list, + "IIF": exp.If.from_arg_list, + "AGGREGATE": exp.Reduce.from_arg_list, + "DAYOFWEEK": lambda args: exp.DayOfWeek( + this=exp.TsOrDsToDate(this=seq_get(args, 0)), + ), + "DAYOFMONTH": lambda args: exp.DayOfMonth( + this=exp.TsOrDsToDate(this=seq_get(args, 0)), + ), + "DAYOFYEAR": lambda args: exp.DayOfYear( + this=exp.TsOrDsToDate(this=seq_get(args, 0)), + ), + "WEEKOFYEAR": lambda args: exp.WeekOfYear( + this=exp.TsOrDsToDate(this=seq_get(args, 0)), + ), + "DATE": lambda args: exp.Cast(this=seq_get(args, 0), to=exp.DataType.build("date")), + "DATE_TRUNC": lambda args: exp.TimestampTrunc( + this=seq_get(args, 1), + unit=exp.var(seq_get(args, 0)), + ), + "TRUNC": lambda args: exp.DateTrunc(unit=seq_get(args, 1), this=seq_get(args, 0)), + "BOOLEAN": _parse_as_cast("boolean"), + "DOUBLE": _parse_as_cast("double"), + "FLOAT": _parse_as_cast("float"), + "INT": _parse_as_cast("int"), + "STRING": _parse_as_cast("string"), + "TIMESTAMP": _parse_as_cast("timestamp"), + } + + FUNCTION_PARSERS = { + **parser.Parser.FUNCTION_PARSERS, # type: ignore + "BROADCAST": lambda self: self._parse_join_hint("BROADCAST"), + "BROADCASTJOIN": lambda self: self._parse_join_hint("BROADCASTJOIN"), + "MAPJOIN": lambda self: self._parse_join_hint("MAPJOIN"), + "MERGE": lambda self: self._parse_join_hint("MERGE"), + "SHUFFLEMERGE": lambda self: self._parse_join_hint("SHUFFLEMERGE"), + "MERGEJOIN": lambda self: self._parse_join_hint("MERGEJOIN"), + "SHUFFLE_HASH": lambda self: self._parse_join_hint("SHUFFLE_HASH"), + "SHUFFLE_REPLICATE_NL": lambda self: self._parse_join_hint("SHUFFLE_REPLICATE_NL"), + } + + def _parse_add_column(self) -> t.Optional[exp.Expression]: + return self._match_text_seq("ADD", "COLUMNS") and self._parse_schema() + + def _parse_drop_column(self) -> t.Optional[exp.Expression]: + return self._match_text_seq("DROP", "COLUMNS") and self.expression( + exp.Drop, + this=self._parse_schema(), + kind="COLUMNS", + ) + + def _pivot_column_names(self, pivot_columns: t.List[exp.Expression]) -> t.List[str]: + # Spark doesn't add a suffix to the pivot columns when there's a single aggregation + if len(pivot_columns) == 1: + return [""] + + names = [] + for agg in pivot_columns: + if isinstance(agg, exp.Alias): + names.append(agg.alias) + else: + """ + This case corresponds to aggregations without aliases being used as suffixes + (e.g. col_avg(foo)). We need to unquote identifiers because they're going to + be quoted in the base parser's `_parse_pivot` method, due to `to_identifier`. + Otherwise, we'd end up with `col_avg(`foo`)` (notice the double quotes). + + Moreover, function names are lowercased in order to mimic Spark's naming scheme. + """ + agg_all_unquoted = agg.transform( + lambda node: exp.Identifier(this=node.name, quoted=False) + if isinstance(node, exp.Identifier) + else node + ) + names.append(agg_all_unquoted.sql(dialect="spark", normalize_functions="lower")) + + return names + + class Generator(Hive.Generator): + TYPE_MAPPING = { + **Hive.Generator.TYPE_MAPPING, # type: ignore + exp.DataType.Type.TINYINT: "BYTE", + exp.DataType.Type.SMALLINT: "SHORT", + exp.DataType.Type.BIGINT: "LONG", + } + + PROPERTIES_LOCATION = { + **Hive.Generator.PROPERTIES_LOCATION, # type: ignore + exp.EngineProperty: exp.Properties.Location.UNSUPPORTED, + exp.AutoIncrementProperty: exp.Properties.Location.UNSUPPORTED, + exp.CharacterSetProperty: exp.Properties.Location.UNSUPPORTED, + exp.CollateProperty: exp.Properties.Location.UNSUPPORTED, + } + + TRANSFORMS = { + **Hive.Generator.TRANSFORMS, # type: ignore + exp.ApproxDistinct: rename_func("APPROX_COUNT_DISTINCT"), + exp.ArraySum: lambda self, e: f"AGGREGATE({self.sql(e, 'this')}, 0, (acc, x) -> acc + x, acc -> acc)", + exp.AtTimeZone: lambda self, e: f"FROM_UTC_TIMESTAMP({self.sql(e, 'this')}, {self.sql(e, 'zone')})", + exp.BitwiseLeftShift: rename_func("SHIFTLEFT"), + exp.BitwiseRightShift: rename_func("SHIFTRIGHT"), + exp.Create: _create_sql, + exp.DateFromParts: rename_func("MAKE_DATE"), + exp.DateTrunc: lambda self, e: self.func("TRUNC", e.this, e.args.get("unit")), + exp.DayOfMonth: rename_func("DAYOFMONTH"), + exp.DayOfWeek: rename_func("DAYOFWEEK"), + exp.DayOfYear: rename_func("DAYOFYEAR"), + exp.FileFormatProperty: lambda self, e: f"USING {e.name.upper()}", + exp.Hint: lambda self, e: f" /*+ {self.expressions(e).strip()} */", + exp.LogicalAnd: rename_func("BOOL_AND"), + exp.LogicalOr: rename_func("BOOL_OR"), + exp.Map: _map_sql, + exp.Pivot: transforms.preprocess([transforms.unqualify_pivot_columns]), + exp.Reduce: rename_func("AGGREGATE"), + exp.StrToDate: _str_to_date, + exp.StrToTime: lambda self, e: f"TO_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", + exp.TimestampTrunc: lambda self, e: self.func( + "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this + ), + exp.Trim: trim_sql, + exp.UnixToTime: _unix_to_time_sql, + exp.VariancePop: rename_func("VAR_POP"), + exp.WeekOfYear: rename_func("WEEKOFYEAR"), + exp.WithinGroup: transforms.preprocess( + [transforms.remove_within_group_for_percentiles] + ), + } + TRANSFORMS.pop(exp.ArrayJoin) + TRANSFORMS.pop(exp.ArraySort) + TRANSFORMS.pop(exp.ILike) + + WRAP_DERIVED_VALUES = False + CREATE_FUNCTION_RETURN_AS = False + + def cast_sql(self, expression: exp.Cast) -> str: + if isinstance(expression.this, exp.Cast) and expression.this.is_type( + exp.DataType.Type.JSON + ): + schema = f"'{self.sql(expression, 'to')}'" + return self.func("FROM_JSON", expression.this.this, schema) + if expression.to.is_type(exp.DataType.Type.JSON): + return self.func("TO_JSON", expression.this) + + return super(Hive.Generator, self).cast_sql(expression) + + def columndef_sql(self, expression: exp.ColumnDef, sep: str = " ") -> str: + return super().columndef_sql( + expression, + sep=": " + if isinstance(expression.parent, exp.DataType) + and expression.parent.is_type(exp.DataType.Type.STRUCT) + else sep, + ) + + class Tokenizer(Hive.Tokenizer): + HEX_STRINGS = [("X'", "'")] diff --git a/sqlglot/dialects/sqlite.py b/sqlglot/dialects/sqlite.py index 4437f82..f2efe32 100644 --- a/sqlglot/dialects/sqlite.py +++ b/sqlglot/dialects/sqlite.py @@ -22,6 +22,40 @@ def _date_add_sql(self, expression): return self.func("DATE", expression.this, modifier) +def _transform_create(expression: exp.Expression) -> exp.Expression: + """Move primary key to a column and enforce auto_increment on primary keys.""" + schema = expression.this + + if isinstance(expression, exp.Create) and isinstance(schema, exp.Schema): + defs = {} + primary_key = None + + for e in schema.expressions: + if isinstance(e, exp.ColumnDef): + defs[e.name] = e + elif isinstance(e, exp.PrimaryKey): + primary_key = e + + if primary_key and len(primary_key.expressions) == 1: + column = defs[primary_key.expressions[0].name] + column.append( + "constraints", exp.ColumnConstraint(kind=exp.PrimaryKeyColumnConstraint()) + ) + schema.expressions.remove(primary_key) + else: + for column in defs.values(): + auto_increment = None + for constraint in column.constraints.copy(): + if isinstance(constraint.kind, exp.PrimaryKeyColumnConstraint): + break + if isinstance(constraint.kind, exp.AutoIncrementColumnConstraint): + auto_increment = constraint + if auto_increment: + column.constraints.remove(auto_increment) + + return expression + + class SQLite(Dialect): class Tokenizer(tokens.Tokenizer): IDENTIFIERS = ['"', ("[", "]"), "`"] @@ -65,8 +99,8 @@ class SQLite(Dialect): TRANSFORMS = { **generator.Generator.TRANSFORMS, # type: ignore - **transforms.ELIMINATE_QUALIFY, # type: ignore exp.CountIf: count_if_to_sum, + exp.Create: transforms.preprocess([_transform_create]), exp.CurrentDate: lambda *_: "CURRENT_DATE", exp.CurrentTime: lambda *_: "CURRENT_TIME", exp.CurrentTimestamp: lambda *_: "CURRENT_TIMESTAMP", @@ -80,14 +114,17 @@ class SQLite(Dialect): exp.Levenshtein: rename_func("EDITDIST3"), exp.LogicalOr: rename_func("MAX"), exp.LogicalAnd: rename_func("MIN"), + exp.Select: transforms.preprocess( + [transforms.eliminate_distinct_on, transforms.eliminate_qualify] + ), exp.TableSample: no_tablesample_sql, exp.TimeStrToTime: lambda self, e: self.sql(e, "this"), exp.TryCast: no_trycast_sql, } PROPERTIES_LOCATION = { - **generator.Generator.PROPERTIES_LOCATION, # type: ignore - exp.VolatileProperty: exp.Properties.Location.UNSUPPORTED, + k: exp.Properties.Location.UNSUPPORTED + for k, v in generator.Generator.PROPERTIES_LOCATION.items() } LIMIT_FETCH = "LIMIT" diff --git a/sqlglot/dialects/starrocks.py b/sqlglot/dialects/starrocks.py index ff19dab..895588a 100644 --- a/sqlglot/dialects/starrocks.py +++ b/sqlglot/dialects/starrocks.py @@ -34,6 +34,7 @@ class StarRocks(MySQL): exp.JSONExtractScalar: arrow_json_extract_sql, exp.JSONExtract: arrow_json_extract_sql, exp.DateDiff: rename_func("DATEDIFF"), + exp.RegexpLike: rename_func("REGEXP"), exp.StrToUnix: lambda self, e: f"UNIX_TIMESTAMP({self.sql(e, 'this')}, {self.format_time(e)})", exp.TimestampTrunc: lambda self, e: self.func( "DATE_TRUNC", exp.Literal.string(e.text("unit")), e.this diff --git a/sqlglot/dialects/tableau.py b/sqlglot/dialects/tableau.py index 792c2b4..51e685b 100644 --- a/sqlglot/dialects/tableau.py +++ b/sqlglot/dialects/tableau.py @@ -1,6 +1,6 @@ from __future__ import annotations -from sqlglot import exp, generator, parser +from sqlglot import exp, generator, parser, transforms from sqlglot.dialects.dialect import Dialect @@ -29,6 +29,7 @@ class Tableau(Dialect): exp.If: _if_sql, exp.Coalesce: _coalesce_sql, exp.Count: _count_sql, + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), } PROPERTIES_LOCATION = { diff --git a/sqlglot/dialects/teradata.py b/sqlglot/dialects/teradata.py index 331e105..a79eaeb 100644 --- a/sqlglot/dialects/teradata.py +++ b/sqlglot/dialects/teradata.py @@ -2,7 +2,7 @@ from __future__ import annotations import typing as t -from sqlglot import exp, generator, parser, tokens +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, format_time_lambda, @@ -148,6 +148,7 @@ class Teradata(Dialect): **generator.Generator.TRANSFORMS, exp.Max: max_or_greatest, exp.Min: min_or_least, + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.TimeToStr: lambda self, e: f"CAST({self.sql(e, 'this')} AS DATE FORMAT {self.format_time(e)})", exp.ToChar: lambda self, e: self.function_fallback_sql(e), } diff --git a/sqlglot/dialects/tsql.py b/sqlglot/dialects/tsql.py index 9cf56e1..03de99c 100644 --- a/sqlglot/dialects/tsql.py +++ b/sqlglot/dialects/tsql.py @@ -3,7 +3,7 @@ from __future__ import annotations import re import typing as t -from sqlglot import exp, generator, parser, tokens +from sqlglot import exp, generator, parser, tokens, transforms from sqlglot.dialects.dialect import ( Dialect, max_or_greatest, @@ -259,8 +259,8 @@ class TSQL(Dialect): class Tokenizer(tokens.Tokenizer): IDENTIFIERS = ['"', ("[", "]")] - QUOTES = ["'", '"'] + HEX_STRINGS = [("0x", ""), ("0X", "")] KEYWORDS = { **tokens.Tokenizer.KEYWORDS, @@ -463,17 +463,18 @@ class TSQL(Dialect): exp.DateDiff: generate_date_delta_with_unit_sql, exp.CurrentDate: rename_func("GETDATE"), exp.CurrentTimestamp: rename_func("GETDATE"), - exp.If: rename_func("IIF"), - exp.NumberToStr: _format_sql, - exp.TimeToStr: _format_sql, exp.GroupConcat: _string_agg_sql, + exp.If: rename_func("IIF"), exp.Max: max_or_greatest, exp.MD5: lambda self, e: self.func("HASHBYTES", exp.Literal.string("MD5"), e.this), exp.Min: min_or_least, + exp.NumberToStr: _format_sql, + exp.Select: transforms.preprocess([transforms.eliminate_distinct_on]), exp.SHA: lambda self, e: self.func("HASHBYTES", exp.Literal.string("SHA1"), e.this), exp.SHA2: lambda self, e: self.func( "HASHBYTES", exp.Literal.string(f"SHA2_{e.args.get('length', 256)}"), e.this ), + exp.TimeToStr: _format_sql, } TRANSFORMS.pop(exp.ReturnsProperty) diff --git a/sqlglot/expressions.py b/sqlglot/expressions.py index 49d3ff6..9e7379d 100644 --- a/sqlglot/expressions.py +++ b/sqlglot/expressions.py @@ -64,6 +64,13 @@ class Expression(metaclass=_Expression): and representing expressions as strings. arg_types: determines what arguments (child nodes) are supported by an expression. It maps arg keys to booleans that indicate whether the corresponding args are optional. + parent: a reference to the parent expression (or None, in case of root expressions). + arg_key: the arg key an expression is associated with, i.e. the name its parent expression + uses to refer to it. + comments: a list of comments that are associated with a given expression. This is used in + order to preserve comments when transpiling SQL code. + _type: the `sqlglot.expressions.DataType` type of an expression. This is inferred by the + optimizer, in order to enable some transformations that require type information. Example: >>> class Foo(Expression): @@ -74,13 +81,6 @@ class Expression(metaclass=_Expression): Args: args: a mapping used for retrieving the arguments of an expression, given their arg keys. - parent: a reference to the parent expression (or None, in case of root expressions). - arg_key: the arg key an expression is associated with, i.e. the name its parent expression - uses to refer to it. - comments: a list of comments that are associated with a given expression. This is used in - order to preserve comments when transpiling SQL code. - _type: the `sqlglot.expressions.DataType` type of an expression. This is inferred by the - optimizer, in order to enable some transformations that require type information. """ key = "expression" @@ -258,6 +258,12 @@ class Expression(metaclass=_Expression): new.parent = self.parent return new + def add_comments(self, comments: t.Optional[t.List[str]]) -> None: + if self.comments is None: + self.comments = [] + if comments: + self.comments.extend(comments) + def append(self, arg_key, value): """ Appends value to arg_key if it's a list or sets it as a new list. @@ -650,7 +656,7 @@ ExpOrStr = t.Union[str, Expression] class Condition(Expression): - def and_(self, *expressions, dialect=None, **opts): + def and_(self, *expressions, dialect=None, copy=True, **opts): """ AND this condition with one or multiple expressions. @@ -662,14 +668,15 @@ class Condition(Expression): *expressions (str | Expression): the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. dialect (str): the dialect used to parse the input expression. + copy (bool): whether or not to copy the involved expressions (only applies to Expressions). opts (kwargs): other options to use to parse the input expressions. Returns: And: the new condition. """ - return and_(self, *expressions, dialect=dialect, **opts) + return and_(self, *expressions, dialect=dialect, copy=copy, **opts) - def or_(self, *expressions, dialect=None, **opts): + def or_(self, *expressions, dialect=None, copy=True, **opts): """ OR this condition with one or multiple expressions. @@ -681,14 +688,15 @@ class Condition(Expression): *expressions (str | Expression): the SQL code strings to parse. If an `Expression` instance is passed, it will be used as-is. dialect (str): the dialect used to parse the input expression. + copy (bool): whether or not to copy the involved expressions (only applies to Expressions). opts (kwargs): other options to use to parse the input expressions. Returns: Or: the new condition. """ - return or_(self, *expressions, dialect=dialect, **opts) + return or_(self, *expressions, dialect=dialect, copy=copy, **opts) - def not_(self): + def not_(self, copy=True): """ Wrap this condition with NOT. @@ -696,14 +704,17 @@ class Condition(Expression): >>> condition("x=1").not_().sql() 'NOT x = 1' + Args: + copy (bool): whether or not to copy this object. + Returns: Not: the new condition. """ - return not_(self) + return not_(self, copy=copy) def _binop(self, klass: t.Type[E], other: ExpOrStr, reverse=False) -> E: - this = self - other = convert(other) + this = self.copy() + other = convert(other, copy=True) if not isinstance(this, klass) and not isinstance(other, klass): this = _wrap(this, Binary) other = _wrap(other, Binary) @@ -711,20 +722,25 @@ class Condition(Expression): return klass(this=other, expression=this) return klass(this=this, expression=other) - def __getitem__(self, other: ExpOrStr | slice | t.Tuple[ExpOrStr]): - if isinstance(other, slice): - return Between( - this=self, - low=convert(other.start), - high=convert(other.stop), - ) - return Bracket(this=self, expressions=[convert(e) for e in ensure_list(other)]) + def __getitem__(self, other: ExpOrStr | t.Tuple[ExpOrStr]): + return Bracket( + this=self.copy(), expressions=[convert(e, copy=True) for e in ensure_list(other)] + ) - def isin(self, *expressions: ExpOrStr, query: t.Optional[ExpOrStr] = None, **opts) -> In: + def isin( + self, *expressions: t.Any, query: t.Optional[ExpOrStr] = None, copy=True, **opts + ) -> In: return In( - this=self, - expressions=[convert(e) for e in expressions], - query=maybe_parse(query, **opts) if query else None, + this=_maybe_copy(self, copy), + expressions=[convert(e, copy=copy) for e in expressions], + query=maybe_parse(query, copy=copy, **opts) if query else None, + ) + + def between(self, low: t.Any, high: t.Any, copy=True, **opts) -> Between: + return Between( + this=_maybe_copy(self, copy), + low=convert(low, copy=copy, **opts), + high=convert(high, copy=copy, **opts), ) def like(self, other: ExpOrStr) -> Like: @@ -809,10 +825,10 @@ class Condition(Expression): return self._binop(Or, other, reverse=True) def __neg__(self) -> Neg: - return Neg(this=_wrap(self, Binary)) + return Neg(this=_wrap(self.copy(), Binary)) def __invert__(self) -> Not: - return not_(self) + return not_(self.copy()) class Predicate(Condition): @@ -830,11 +846,7 @@ class DerivedTable(Expression): @property def selects(self): - alias = self.args.get("alias") - - if alias: - return alias.columns - return [] + return self.this.selects if isinstance(self.this, Subqueryable) else [] @property def named_selects(self): @@ -904,7 +916,10 @@ class Unionable(Expression): class UDTF(DerivedTable, Unionable): - pass + @property + def selects(self): + alias = self.args.get("alias") + return alias.columns if alias else [] class Cache(Expression): @@ -1073,6 +1088,10 @@ class ColumnDef(Expression): "position": False, } + @property + def constraints(self) -> t.List[ColumnConstraint]: + return self.args.get("constraints") or [] + class AlterColumn(Expression): arg_types = { @@ -1100,6 +1119,10 @@ class Comment(Expression): class ColumnConstraint(Expression): arg_types = {"this": False, "kind": True} + @property + def kind(self) -> ColumnConstraintKind: + return self.args["kind"] + class ColumnConstraintKind(Expression): pass @@ -1937,6 +1960,15 @@ class Reference(Expression): class Tuple(Expression): arg_types = {"expressions": False} + def isin( + self, *expressions: t.Any, query: t.Optional[ExpOrStr] = None, copy=True, **opts + ) -> In: + return In( + this=_maybe_copy(self, copy), + expressions=[convert(e, copy=copy) for e in expressions], + query=maybe_parse(query, copy=copy, **opts) if query else None, + ) + class Subqueryable(Unionable): def subquery(self, alias=None, copy=True) -> Subquery: @@ -2236,6 +2268,8 @@ class Select(Subqueryable): "expressions": False, "hint": False, "distinct": False, + "struct": False, # https://cloud.google.com/bigquery/docs/reference/standard-sql/query-syntax#return_query_results_as_a_value_table + "value": False, "into": False, "from": False, **QUERY_MODIFIERS, @@ -2611,7 +2645,7 @@ class Select(Subqueryable): join.set("kind", kind.text) if on: - on = and_(*ensure_collection(on), dialect=dialect, **opts) + on = and_(*ensure_collection(on), dialect=dialect, copy=copy, **opts) join.set("on", on) if using: @@ -2723,7 +2757,7 @@ class Select(Subqueryable): **opts, ) - def distinct(self, distinct=True, copy=True) -> Select: + def distinct(self, *ons: ExpOrStr, distinct: bool = True, copy: bool = True) -> Select: """ Set the OFFSET expression. @@ -2732,14 +2766,16 @@ class Select(Subqueryable): 'SELECT DISTINCT x FROM tbl' Args: - distinct (bool): whether the Select should be distinct - copy (bool): if `False`, modify this expression instance in-place. + ons: the expressions to distinct on + distinct: whether the Select should be distinct + copy: if `False`, modify this expression instance in-place. Returns: Select: the modified expression. """ instance = _maybe_copy(self, copy) - instance.set("distinct", Distinct() if distinct else None) + on = Tuple(expressions=[maybe_parse(on, copy=copy) for on in ons]) if ons else None + instance.set("distinct", Distinct(on=on) if distinct else None) return instance def ctas(self, table, properties=None, dialect=None, copy=True, **opts) -> Create: @@ -2969,6 +3005,10 @@ class DataType(Expression): USMALLINT = auto() BIGINT = auto() UBIGINT = auto() + INT128 = auto() + UINT128 = auto() + INT256 = auto() + UINT256 = auto() FLOAT = auto() DOUBLE = auto() DECIMAL = auto() @@ -3022,6 +3062,8 @@ class DataType(Expression): Type.TINYINT, Type.SMALLINT, Type.BIGINT, + Type.INT128, + Type.INT256, } FLOAT_TYPES = { @@ -3069,10 +3111,6 @@ class PseudoType(Expression): pass -class StructKwarg(Expression): - arg_types = {"this": True, "expression": True} - - # WHERE x EXISTS|ALL|ANY|SOME(SELECT ...) class SubqueryPredicate(Predicate): pass @@ -3538,14 +3576,20 @@ class Case(Func): arg_types = {"this": False, "ifs": True, "default": False} def when(self, condition: ExpOrStr, then: ExpOrStr, copy: bool = True, **opts) -> Case: - this = self.copy() if copy else self - this.append("ifs", If(this=maybe_parse(condition, **opts), true=maybe_parse(then, **opts))) - return this + instance = _maybe_copy(self, copy) + instance.append( + "ifs", + If( + this=maybe_parse(condition, copy=copy, **opts), + true=maybe_parse(then, copy=copy, **opts), + ), + ) + return instance def else_(self, condition: ExpOrStr, copy: bool = True, **opts) -> Case: - this = self.copy() if copy else self - this.set("default", maybe_parse(condition, **opts)) - return this + instance = _maybe_copy(self, copy) + instance.set("default", maybe_parse(condition, copy=copy, **opts)) + return instance class Cast(Func): @@ -3760,6 +3804,14 @@ class Floor(Func): arg_types = {"this": True, "decimals": False} +class FromBase64(Func): + pass + + +class ToBase64(Func): + pass + + class Greatest(Func): arg_types = {"this": True, "expressions": False} is_var_len_args = True @@ -3930,11 +3982,11 @@ class Pow(Binary, Func): class PercentileCont(AggFunc): - pass + arg_types = {"this": True, "expression": False} class PercentileDisc(AggFunc): - pass + arg_types = {"this": True, "expression": False} class Quantile(AggFunc): @@ -4405,14 +4457,16 @@ def _apply_conjunction_builder( if append and existing is not None: expressions = [existing.this if into else existing] + list(expressions) - node = and_(*expressions, dialect=dialect, **opts) + node = and_(*expressions, dialect=dialect, copy=copy, **opts) inst.set(arg, into(this=node) if into else node) return inst -def _combine(expressions, operator, dialect=None, **opts): - expressions = [condition(expression, dialect=dialect, **opts) for expression in expressions] +def _combine(expressions, operator, dialect=None, copy=True, **opts): + expressions = [ + condition(expression, dialect=dialect, copy=copy, **opts) for expression in expressions + ] this = expressions[0] if expressions[1:]: this = _wrap(this, Connector) @@ -4626,7 +4680,7 @@ def delete( return delete_expr -def condition(expression, dialect=None, **opts) -> Condition: +def condition(expression, dialect=None, copy=True, **opts) -> Condition: """ Initialize a logical condition expression. @@ -4645,6 +4699,7 @@ def condition(expression, dialect=None, **opts) -> Condition: If an Expression instance is passed, this is used as-is. dialect (str): the dialect used to parse the input expression (in the case that the input expression is a SQL string). + copy (bool): Whether or not to copy `expression` (only applies to expressions). **opts: other options to use to parse the input expressions (again, in the case that the input expression is a SQL string). @@ -4655,11 +4710,12 @@ def condition(expression, dialect=None, **opts) -> Condition: expression, into=Condition, dialect=dialect, + copy=copy, **opts, ) -def and_(*expressions, dialect=None, **opts) -> And: +def and_(*expressions, dialect=None, copy=True, **opts) -> And: """ Combine multiple conditions with an AND logical operator. @@ -4671,15 +4727,16 @@ def and_(*expressions, dialect=None, **opts) -> And: *expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, this is used as-is. dialect (str): the dialect used to parse the input expression. + copy (bool): whether or not to copy `expressions` (only applies to Expressions). **opts: other options to use to parse the input expressions. Returns: And: the new condition """ - return _combine(expressions, And, dialect, **opts) + return _combine(expressions, And, dialect, copy=copy, **opts) -def or_(*expressions, dialect=None, **opts) -> Or: +def or_(*expressions, dialect=None, copy=True, **opts) -> Or: """ Combine multiple conditions with an OR logical operator. @@ -4691,15 +4748,16 @@ def or_(*expressions, dialect=None, **opts) -> Or: *expressions (str | Expression): the SQL code strings to parse. If an Expression instance is passed, this is used as-is. dialect (str): the dialect used to parse the input expression. + copy (bool): whether or not to copy `expressions` (only applies to Expressions). **opts: other options to use to parse the input expressions. Returns: Or: the new condition """ - return _combine(expressions, Or, dialect, **opts) + return _combine(expressions, Or, dialect, copy=copy, **opts) -def not_(expression, dialect=None, **opts) -> Not: +def not_(expression, dialect=None, copy=True, **opts) -> Not: """ Wrap a condition with a NOT operator. @@ -4719,13 +4777,14 @@ def not_(expression, dialect=None, **opts) -> Not: this = condition( expression, dialect=dialect, + copy=copy, **opts, ) return Not(this=_wrap(this, Connector)) -def paren(expression) -> Paren: - return Paren(this=expression) +def paren(expression, copy=True) -> Paren: + return Paren(this=_maybe_copy(expression, copy)) SAFE_IDENTIFIER_RE = re.compile(r"^[_a-zA-Z][\w]*$") @@ -4998,29 +5057,20 @@ def values( alias: optional alias columns: Optional list of ordered column names or ordered dictionary of column names to types. If either are provided then an alias is also required. - If a dictionary is provided then the first column of the values will be casted to the expected type - in order to help with type inference. Returns: Values: the Values expression object """ if columns and not alias: raise ValueError("Alias is required when providing columns") - table_alias = ( - TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) - if columns - else TableAlias(this=to_identifier(alias) if alias else None) - ) - expressions = [convert(tup) for tup in values] - if columns and isinstance(columns, dict): - types = list(columns.values()) - expressions[0].set( - "expressions", - [cast(x, types[i]) for i, x in enumerate(expressions[0].expressions)], - ) + return Values( - expressions=expressions, - alias=table_alias, + expressions=[convert(tup) for tup in values], + alias=( + TableAlias(this=to_identifier(alias), columns=[to_identifier(x) for x in columns]) + if columns + else (TableAlias(this=to_identifier(alias)) if alias else None) + ), ) @@ -5068,19 +5118,20 @@ def rename_table(old_name: str | Table, new_name: str | Table) -> AlterTable: ) -def convert(value) -> Expression: +def convert(value: t.Any, copy: bool = False) -> Expression: """Convert a python value into an expression object. Raises an error if a conversion is not possible. Args: - value (Any): a python object + value: A python object. + copy: Whether or not to copy `value` (only applies to Expressions and collections). Returns: - Expression: the equivalent expression object + Expression: the equivalent expression object. """ if isinstance(value, Expression): - return value + return _maybe_copy(value, copy) if isinstance(value, str): return Literal.string(value) if isinstance(value, bool): @@ -5098,13 +5149,13 @@ def convert(value) -> Expression: date_literal = Literal.string(value.strftime("%Y-%m-%d")) return DateStrToDate(this=date_literal) if isinstance(value, tuple): - return Tuple(expressions=[convert(v) for v in value]) + return Tuple(expressions=[convert(v, copy=copy) for v in value]) if isinstance(value, list): - return Array(expressions=[convert(v) for v in value]) + return Array(expressions=[convert(v, copy=copy) for v in value]) if isinstance(value, dict): return Map( - keys=[convert(k) for k in value], - values=[convert(v) for v in value.values()], + keys=[convert(k, copy=copy) for k in value], + values=[convert(v, copy=copy) for v in value.values()], ) raise ValueError(f"Cannot convert {value}") diff --git a/sqlglot/generator.py b/sqlglot/generator.py index bd12d54..d7dcea0 100644 --- a/sqlglot/generator.py +++ b/sqlglot/generator.py @@ -25,6 +25,12 @@ class Generator: quote_end (str): specifies which ending character to use to delimit quotes. Default: '. identifier_start (str): specifies which starting character to use to delimit identifiers. Default: ". identifier_end (str): specifies which ending character to use to delimit identifiers. Default: ". + bit_start (str): specifies which starting character to use to delimit bit literals. Default: None. + bit_end (str): specifies which ending character to use to delimit bit literals. Default: None. + hex_start (str): specifies which starting character to use to delimit hex literals. Default: None. + hex_end (str): specifies which ending character to use to delimit hex literals. Default: None. + byte_start (str): specifies which starting character to use to delimit byte literals. Default: None. + byte_end (str): specifies which ending character to use to delimit byte literals. Default: None. identify (bool | str): 'always': always quote, 'safe': quote identifiers if they don't contain an upcase, True defaults to always. normalize (bool): if set to True all identifiers will lower cased string_escape (str): specifies a string escape character. Default: '. @@ -227,6 +233,12 @@ class Generator: "quote_end", "identifier_start", "identifier_end", + "bit_start", + "bit_end", + "hex_start", + "hex_end", + "byte_start", + "byte_end", "identify", "normalize", "string_escape", @@ -258,6 +270,12 @@ class Generator: quote_end=None, identifier_start=None, identifier_end=None, + bit_start=None, + bit_end=None, + hex_start=None, + hex_end=None, + byte_start=None, + byte_end=None, identify=False, normalize=False, string_escape=None, @@ -284,6 +302,12 @@ class Generator: self.quote_end = quote_end or "'" self.identifier_start = identifier_start or '"' self.identifier_end = identifier_end or '"' + self.bit_start = bit_start + self.bit_end = bit_end + self.hex_start = hex_start + self.hex_end = hex_end + self.byte_start = byte_start + self.byte_end = byte_end self.identify = identify self.normalize = normalize self.string_escape = string_escape or "'" @@ -361,7 +385,7 @@ class Generator: expression: t.Optional[exp.Expression] = None, comments: t.Optional[t.List[str]] = None, ) -> str: - comments = (comments or (expression and expression.comments)) if self._comments else None # type: ignore + comments = ((expression and expression.comments) if comments is None else comments) if self._comments else None # type: ignore if not comments or isinstance(expression, exp.Binary): return sql @@ -510,12 +534,12 @@ class Generator: position = self.sql(expression, "position") return f"{position}{this}" - def columndef_sql(self, expression: exp.ColumnDef) -> str: + def columndef_sql(self, expression: exp.ColumnDef, sep: str = " ") -> str: column = self.sql(expression, "this") kind = self.sql(expression, "kind") constraints = self.expressions(expression, key="constraints", sep=" ", flat=True) exists = "IF NOT EXISTS " if expression.args.get("exists") else "" - kind = f" {kind}" if kind else "" + kind = f"{sep}{kind}" if kind else "" constraints = f" {constraints}" if constraints else "" position = self.sql(expression, "position") position = f" {position}" if position else "" @@ -524,7 +548,7 @@ class Generator: def columnconstraint_sql(self, expression: exp.ColumnConstraint) -> str: this = self.sql(expression, "this") - kind_sql = self.sql(expression, "kind") + kind_sql = self.sql(expression, "kind").strip() return f"CONSTRAINT {this} {kind_sql}" if this else kind_sql def autoincrementcolumnconstraint_sql(self, _) -> str: @@ -716,13 +740,22 @@ class Generator: return f"{alias}{columns}" def bitstring_sql(self, expression: exp.BitString) -> str: - return self.sql(expression, "this") + this = self.sql(expression, "this") + if self.bit_start: + return f"{self.bit_start}{this}{self.bit_end}" + return f"{int(this, 2)}" def hexstring_sql(self, expression: exp.HexString) -> str: - return self.sql(expression, "this") + this = self.sql(expression, "this") + if self.hex_start: + return f"{self.hex_start}{this}{self.hex_end}" + return f"{int(this, 16)}" def bytestring_sql(self, expression: exp.ByteString) -> str: - return self.sql(expression, "this") + this = self.sql(expression, "this") + if self.byte_start: + return f"{self.byte_start}{this}{self.byte_end}" + return this def datatype_sql(self, expression: exp.DataType) -> str: type_value = expression.this @@ -1115,10 +1148,12 @@ class Generator: return f"{table}{system_time}{alias}{hints}{laterals}{joins}{pivots}" - def tablesample_sql(self, expression: exp.TableSample, seed_prefix: str = "SEED") -> str: + def tablesample_sql( + self, expression: exp.TableSample, seed_prefix: str = "SEED", sep=" AS " + ) -> str: if self.alias_post_tablesample and expression.this.alias: this = self.sql(expression.this, "this") - alias = f" AS {self.sql(expression.this, 'alias')}" + alias = f"{sep}{self.sql(expression.this, 'alias')}" else: this = self.sql(expression, "this") alias = "" @@ -1447,16 +1482,16 @@ class Generator: ) def select_sql(self, expression: exp.Select) -> str: - kind = expression.args.get("kind") - kind = f" AS {kind}" if kind else "" hint = self.sql(expression, "hint") distinct = self.sql(expression, "distinct") distinct = f" {distinct}" if distinct else "" + kind = expression.args.get("kind") + kind = f" AS {kind}" if kind else "" expressions = self.expressions(expression) expressions = f"{self.sep()}{expressions}" if expressions else expressions sql = self.query_modifiers( expression, - f"SELECT{kind}{hint}{distinct}{expressions}", + f"SELECT{hint}{distinct}{kind}{expressions}", self.sql(expression, "into", comment=False), self.sql(expression, "from", comment=False), ) @@ -1475,9 +1510,6 @@ class Generator: replace = f"{self.seg(self.STAR_MAPPING['replace'])} ({replace})" if replace else "" return f"*{except_}{replace}" - def structkwarg_sql(self, expression: exp.StructKwarg) -> str: - return f"{self.sql(expression, 'this')} {self.sql(expression, 'expression')}" - def parameter_sql(self, expression: exp.Parameter) -> str: this = self.sql(expression, "this") this = f"{{{this}}}" if expression.args.get("wrapped") else f"{this}" @@ -1806,7 +1838,7 @@ class Generator: return self.binary(expression, op) sqls = tuple( - self.maybe_comment(self.sql(e), e, e.parent.comments) if i != 1 else self.sql(e) + self.maybe_comment(self.sql(e), e, e.parent.comments or []) if i != 1 else self.sql(e) for i, e in enumerate(expression.flatten(unnest=False)) ) diff --git a/sqlglot/optimizer/eliminate_joins.py b/sqlglot/optimizer/eliminate_joins.py index e0ddfa2..27de9c7 100644 --- a/sqlglot/optimizer/eliminate_joins.py +++ b/sqlglot/optimizer/eliminate_joins.py @@ -153,7 +153,7 @@ def join_condition(join): # # should pull y.b as the join key and x.a as the source key if normalized(on): - on = on if isinstance(on, exp.And) else exp.and_(on, exp.true()) + on = on if isinstance(on, exp.And) else exp.and_(on, exp.true(), copy=False) for condition in on.flatten(): if isinstance(condition, exp.EQ): diff --git a/sqlglot/optimizer/expand_laterals.py b/sqlglot/optimizer/expand_laterals.py index 59f3fec..5b2f706 100644 --- a/sqlglot/optimizer/expand_laterals.py +++ b/sqlglot/optimizer/expand_laterals.py @@ -29,6 +29,6 @@ def expand_laterals(expression: exp.Expression) -> exp.Expression: for column in projection.find_all(exp.Column): if not column.table and column.name in alias_to_expression: column.replace(alias_to_expression[column.name].copy()) - if isinstance(projection, exp.Alias): - alias_to_expression[projection.alias] = projection.this + if isinstance(projection, exp.Alias): + alias_to_expression[projection.alias] = projection.this return expression diff --git a/sqlglot/optimizer/normalize.py b/sqlglot/optimizer/normalize.py index 40668ef..b013312 100644 --- a/sqlglot/optimizer/normalize.py +++ b/sqlglot/optimizer/normalize.py @@ -152,12 +152,14 @@ def _distribute(a, b, from_func, to_func, cache): lambda c: to_func( uniq_sort(flatten(from_func(c, b.left)), cache), uniq_sort(flatten(from_func(c, b.right)), cache), + copy=False, ), ) else: a = to_func( uniq_sort(flatten(from_func(a, b.left)), cache), uniq_sort(flatten(from_func(a, b.right)), cache), + copy=False, ) return a diff --git a/sqlglot/optimizer/optimizer.py b/sqlglot/optimizer/optimizer.py index 62eb11e..c165ffe 100644 --- a/sqlglot/optimizer/optimizer.py +++ b/sqlglot/optimizer/optimizer.py @@ -10,7 +10,6 @@ from sqlglot.optimizer.canonicalize import canonicalize from sqlglot.optimizer.eliminate_ctes import eliminate_ctes from sqlglot.optimizer.eliminate_joins import eliminate_joins from sqlglot.optimizer.eliminate_subqueries import eliminate_subqueries -from sqlglot.optimizer.expand_laterals import expand_laterals from sqlglot.optimizer.expand_multi_table_selects import expand_multi_table_selects from sqlglot.optimizer.isolate_table_selects import isolate_table_selects from sqlglot.optimizer.lower_identities import lower_identities @@ -30,7 +29,6 @@ RULES = ( qualify_tables, isolate_table_selects, qualify_columns, - expand_laterals, pushdown_projections, validate_qualify_columns, normalize, diff --git a/sqlglot/optimizer/qualify_columns.py b/sqlglot/optimizer/qualify_columns.py index 0a31246..6ac39f0 100644 --- a/sqlglot/optimizer/qualify_columns.py +++ b/sqlglot/optimizer/qualify_columns.py @@ -3,11 +3,12 @@ import typing as t from sqlglot import alias, exp from sqlglot.errors import OptimizeError +from sqlglot.optimizer.expand_laterals import expand_laterals as _expand_laterals from sqlglot.optimizer.scope import Scope, traverse_scope from sqlglot.schema import ensure_schema -def qualify_columns(expression, schema): +def qualify_columns(expression, schema, expand_laterals=True): """ Rewrite sqlglot AST to have fully qualified columns. @@ -26,6 +27,9 @@ def qualify_columns(expression, schema): """ schema = ensure_schema(schema) + if not schema.mapping and expand_laterals: + expression = _expand_laterals(expression) + for scope in traverse_scope(expression): resolver = Resolver(scope, schema) _pop_table_column_aliases(scope.ctes) @@ -39,6 +43,9 @@ def qualify_columns(expression, schema): _expand_group_by(scope, resolver) _expand_order_by(scope) + if schema.mapping and expand_laterals: + expression = _expand_laterals(expression) + return expression @@ -124,7 +131,7 @@ def _expand_using(scope, resolver): tables[join_table] = None join.args.pop("using") - join.set("on", exp.and_(*conditions)) + join.set("on", exp.and_(*conditions, copy=False)) if column_tables: for column in scope.columns: @@ -240,7 +247,9 @@ def _qualify_columns(scope, resolver): # column_table can be a '' because bigquery unnest has no table alias if column_table: column.set("table", column_table) - elif column_table not in scope.sources: + elif column_table not in scope.sources and ( + not scope.parent or column_table not in scope.parent.sources + ): # structs are used like tables (e.g. "struct"."field"), so they need to be qualified # separately and represented as dot(dot(...(., field1), field2, ...)) @@ -376,10 +385,13 @@ def _qualify_outputs(scope): if not selection.output_name: selection.set("alias", exp.TableAlias(this=exp.to_identifier(f"_col_{i}"))) elif not isinstance(selection, exp.Alias) and not selection.is_star: - alias_ = alias(exp.column(""), alias=selection.output_name or f"_col_{i}") - alias_.set("this", selection) - selection = alias_ - + selection = alias( + selection, + alias=selection.output_name or f"_col_{i}", + quoted=True + if isinstance(selection, exp.Column) and selection.this.quoted + else None, + ) if aliased_column: selection.set("alias", exp.to_identifier(aliased_column)) diff --git a/sqlglot/optimizer/qualify_tables.py b/sqlglot/optimizer/qualify_tables.py index a719ebe..1b451a6 100644 --- a/sqlglot/optimizer/qualify_tables.py +++ b/sqlglot/optimizer/qualify_tables.py @@ -7,21 +7,29 @@ from sqlglot.optimizer.scope import Scope, traverse_scope def qualify_tables(expression, db=None, catalog=None, schema=None): """ - Rewrite sqlglot AST to have fully qualified tables. + Rewrite sqlglot AST to have fully qualified tables. Additionally, this + replaces "join constructs" (*) by equivalent SELECT * subqueries. - Example: + Examples: >>> import sqlglot >>> expression = sqlglot.parse_one("SELECT 1 FROM tbl") >>> qualify_tables(expression, db="db").sql() 'SELECT 1 FROM db.tbl AS tbl' + >>> + >>> expression = sqlglot.parse_one("SELECT * FROM (tbl1 JOIN tbl2 ON id1 = id2)") + >>> qualify_tables(expression).sql() + 'SELECT * FROM (SELECT * FROM tbl1 AS tbl1 JOIN tbl2 AS tbl2 ON id1 = id2) AS _q_0' Args: expression (sqlglot.Expression): expression to qualify db (str): Database name catalog (str): Catalog name schema: A schema to populate + Returns: sqlglot.Expression: qualified expression + + (*) See section 7.2.1.2 in https://www.postgresql.org/docs/current/queries-table-expressions.html """ sequence = itertools.count() @@ -29,6 +37,12 @@ def qualify_tables(expression, db=None, catalog=None, schema=None): for scope in traverse_scope(expression): for derived_table in itertools.chain(scope.ctes, scope.derived_tables): + # Expand join construct + if isinstance(derived_table, exp.Subquery): + unnested = derived_table.unnest() + if isinstance(unnested, exp.Table): + derived_table.this.replace(exp.select("*").from_(unnested.copy(), copy=False)) + if not derived_table.args.get("alias"): alias_ = f"_q_{next(sequence)}" derived_table.set("alias", exp.TableAlias(this=exp.to_identifier(alias_))) diff --git a/sqlglot/optimizer/scope.py b/sqlglot/optimizer/scope.py index b582eb0..e00b3c9 100644 --- a/sqlglot/optimizer/scope.py +++ b/sqlglot/optimizer/scope.py @@ -510,6 +510,9 @@ def _traverse_scope(scope): yield from _traverse_union(scope) elif isinstance(scope.expression, exp.Subquery): yield from _traverse_subqueries(scope) + elif isinstance(scope.expression, exp.Table): + # This case corresponds to a "join construct", i.e. (tbl1 JOIN tbl2 ON ..) + yield from _traverse_tables(scope) elif isinstance(scope.expression, exp.UDTF): pass else: @@ -587,6 +590,9 @@ def _traverse_tables(scope): for join in scope.expression.args.get("joins") or []: expressions.append(join.this) + if isinstance(scope.expression, exp.Table): + expressions.append(scope.expression) + expressions.extend(scope.expression.args.get("laterals") or []) for expression in expressions: diff --git a/sqlglot/optimizer/simplify.py b/sqlglot/optimizer/simplify.py index 4e6c910..0904189 100644 --- a/sqlglot/optimizer/simplify.py +++ b/sqlglot/optimizer/simplify.py @@ -60,6 +60,7 @@ def rewrite_between(expression: exp.Expression) -> exp.Expression: return exp.and_( exp.GTE(this=expression.this.copy(), expression=expression.args["low"]), exp.LTE(this=expression.this.copy(), expression=expression.args["high"]), + copy=False, ) return expression @@ -76,9 +77,17 @@ def simplify_not(expression): if isinstance(expression.this, exp.Paren): condition = expression.this.unnest() if isinstance(condition, exp.And): - return exp.or_(exp.not_(condition.left), exp.not_(condition.right)) + return exp.or_( + exp.not_(condition.left, copy=False), + exp.not_(condition.right, copy=False), + copy=False, + ) if isinstance(condition, exp.Or): - return exp.and_(exp.not_(condition.left), exp.not_(condition.right)) + return exp.and_( + exp.not_(condition.left, copy=False), + exp.not_(condition.right, copy=False), + copy=False, + ) if is_null(condition): return exp.null() if always_true(expression.this): @@ -254,12 +263,12 @@ def uniq_sort(expression, cache=None, root=True): # A AND C AND B -> A AND B AND C for i, (sql, e) in enumerate(arr[1:]): if sql < arr[i][0]: - expression = result_func(*(e for _, e in sorted(arr))) + expression = result_func(*(e for _, e in sorted(arr)), copy=False) break else: # we didn't have to sort but maybe we need to dedup if len(deduped) < len(flattened): - expression = result_func(*deduped.values()) + expression = result_func(*deduped.values(), copy=False) return expression diff --git a/sqlglot/parser.py b/sqlglot/parser.py index abb23ad..d8d9f88 100644 --- a/sqlglot/parser.py +++ b/sqlglot/parser.py @@ -126,9 +126,17 @@ class Parser(metaclass=_Parser): TokenType.BIT, TokenType.BOOLEAN, TokenType.TINYINT, + TokenType.UTINYINT, TokenType.SMALLINT, + TokenType.USMALLINT, TokenType.INT, + TokenType.UINT, TokenType.BIGINT, + TokenType.UBIGINT, + TokenType.INT128, + TokenType.UINT128, + TokenType.INT256, + TokenType.UINT256, TokenType.FLOAT, TokenType.DOUBLE, TokenType.CHAR, @@ -961,14 +969,15 @@ class Parser(metaclass=_Parser): The target expression. """ instance = exp_class(**kwargs) - if self._prev_comments: - instance.comments = self._prev_comments - self._prev_comments = None - if comments: - instance.comments = comments + instance.add_comments(comments) if comments else self._add_comments(instance) self.validate_expression(instance) return instance + def _add_comments(self, expression: t.Optional[exp.Expression]) -> None: + if expression and self._prev_comments: + expression.add_comments(self._prev_comments) + self._prev_comments = None + def validate_expression( self, expression: exp.Expression, args: t.Optional[t.List] = None ) -> None: @@ -1567,7 +1576,7 @@ class Parser(metaclass=_Parser): value = self.expression( exp.Schema, this="TABLE", - expressions=self._parse_csv(self._parse_struct_kwargs), + expressions=self._parse_csv(self._parse_struct_types), ) if not self._match(TokenType.GT): self.raise_error("Expecting >") @@ -1802,14 +1811,15 @@ class Parser(metaclass=_Parser): elif self._match(TokenType.SELECT): comments = self._prev_comments + hint = self._parse_hint() + all_ = self._match(TokenType.ALL) + distinct = self._match(TokenType.DISTINCT) + kind = ( self._match(TokenType.ALIAS) and self._match_texts(("STRUCT", "VALUE")) and self._prev.text ) - hint = self._parse_hint() - all_ = self._match(TokenType.ALL) - distinct = self._match(TokenType.DISTINCT) if distinct: distinct = self.expression( @@ -2284,7 +2294,7 @@ class Parser(metaclass=_Parser): if not self._match(TokenType.UNNEST): return None - expressions = self._parse_wrapped_csv(self._parse_column) + expressions = self._parse_wrapped_csv(self._parse_type) ordinality = self._match_pair(TokenType.WITH, TokenType.ORDINALITY) alias = self._parse_table_alias() @@ -2333,7 +2343,9 @@ class Parser(metaclass=_Parser): size = None seed = None - kind = "TABLESAMPLE" if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" + kind = ( + self._prev.text if self._prev.token_type == TokenType.TABLE_SAMPLE else "USING SAMPLE" + ) method = self._parse_var(tokens=(TokenType.ROW,)) self._match(TokenType.L_PAREN) @@ -2684,7 +2696,7 @@ class Parser(metaclass=_Parser): else: this = self.expression(exp.In, this=this, expressions=expressions) - self._match_r_paren() + self._match_r_paren(this) else: this = self.expression(exp.In, this=this, field=self._parse_field()) @@ -2798,7 +2810,7 @@ class Parser(metaclass=_Parser): if self._match(TokenType.L_PAREN): if is_struct: - expressions = self._parse_csv(self._parse_struct_kwargs) + expressions = self._parse_csv(self._parse_struct_types) elif nested: expressions = self._parse_csv(self._parse_types) else: @@ -2833,7 +2845,7 @@ class Parser(metaclass=_Parser): values: t.Optional[t.List[t.Optional[exp.Expression]]] = None if nested and self._match(TokenType.LT): if is_struct: - expressions = self._parse_csv(self._parse_struct_kwargs) + expressions = self._parse_csv(self._parse_struct_types) else: expressions = self._parse_csv(self._parse_types) @@ -2891,16 +2903,10 @@ class Parser(metaclass=_Parser): prefix=prefix, ) - def _parse_struct_kwargs(self) -> t.Optional[exp.Expression]: - index = self._index - this = self._parse_id_var() + def _parse_struct_types(self) -> t.Optional[exp.Expression]: + this = self._parse_type() or self._parse_id_var() self._match(TokenType.COLON) - data_type = self._parse_types() - - if not data_type: - self._retreat(index) - return self._parse_types() - return self.expression(exp.StructKwarg, this=this, expression=data_type) + return self._parse_column_def(this) def _parse_at_time_zone(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: if not self._match(TokenType.AT_TIME_ZONE): @@ -2932,7 +2938,11 @@ class Parser(metaclass=_Parser): else exp.Literal.string(value) ) else: - field = self._parse_star() or self._parse_function() or self._parse_id_var() + field = ( + self._parse_star() + or self._parse_function(anonymous=True) + or self._parse_id_var() + ) if isinstance(field, exp.Func): # bigquery allows function calls like x.y.count(...) @@ -2995,11 +3005,9 @@ class Parser(metaclass=_Parser): else: this = self.expression(exp.Paren, this=self._parse_set_operations(this)) - self._match_r_paren() - comments.extend(self._prev_comments) - - if this and comments: - this.comments = comments + if this: + this.add_comments(comments) + self._match_r_paren(expression=this) return this @@ -3017,7 +3025,7 @@ class Parser(metaclass=_Parser): ) def _parse_function( - self, functions: t.Optional[t.Dict[str, t.Callable]] = None + self, functions: t.Optional[t.Dict[str, t.Callable]] = None, anonymous: bool = False ) -> t.Optional[exp.Expression]: if not self._curr: return None @@ -3043,7 +3051,7 @@ class Parser(metaclass=_Parser): parser = self.FUNCTION_PARSERS.get(upper) - if parser: + if parser and not anonymous: this = parser(self) else: subquery_predicate = self.SUBQUERY_PREDICATES.get(token_type) @@ -3059,7 +3067,7 @@ class Parser(metaclass=_Parser): function = functions.get(upper) args = self._parse_csv(self._parse_lambda) - if function: + if function and not anonymous: # Clickhouse supports function calls like foo(x, y)(z), so for these we need to also parse the # second parameter list (i.e. "(z)") and the corresponding function will receive both arg lists. if count_params(function) == 2: @@ -3148,12 +3156,7 @@ class Parser(metaclass=_Parser): if isinstance(left, exp.Column): left.replace(exp.Var(this=left.text("this"))) - if self._match(TokenType.IGNORE_NULLS): - this = self.expression(exp.IgnoreNulls, this=this) - else: - self._match(TokenType.RESPECT_NULLS) - - return self._parse_limit(self._parse_order(this)) + return self._parse_limit(self._parse_order(self._parse_respect_or_ignore_nulls(this))) def _parse_schema(self, this: t.Optional[exp.Expression] = None) -> t.Optional[exp.Expression]: index = self._index @@ -3177,6 +3180,9 @@ class Parser(metaclass=_Parser): return self.expression(exp.Schema, this=this, expressions=args) def _parse_column_def(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: + # column defs are not really columns, they're identifiers + if isinstance(this, exp.Column): + this = this.this kind = self._parse_types() if self._match_text_seq("FOR", "ORDINALITY"): @@ -3420,7 +3426,7 @@ class Parser(metaclass=_Parser): elif not self._match(TokenType.R_BRACE) and bracket_kind == TokenType.L_BRACE: self.raise_error("Expected }") - this.comments = self._prev_comments + self._add_comments(this) return self._parse_bracket(this) def _parse_slice(self, this: t.Optional[exp.Expression]) -> t.Optional[exp.Expression]: @@ -3584,7 +3590,9 @@ class Parser(metaclass=_Parser): exp.and_( exp.Is(this=expression.copy(), expression=exp.Null()), exp.Is(this=search.copy(), expression=exp.Null()), + copy=False, ), + copy=False, ) ifs.append(exp.If(this=cond, true=result)) @@ -3717,15 +3725,15 @@ class Parser(metaclass=_Parser): if self._match_set(self.TRIM_TYPES): position = self._prev.text.upper() - expression = self._parse_term() + expression = self._parse_bitwise() if self._match_set((TokenType.FROM, TokenType.COMMA)): - this = self._parse_term() + this = self._parse_bitwise() else: this = expression expression = None if self._match(TokenType.COLLATE): - collation = self._parse_term() + collation = self._parse_bitwise() return self.expression( exp.Trim, @@ -3741,6 +3749,15 @@ class Parser(metaclass=_Parser): def _parse_named_window(self) -> t.Optional[exp.Expression]: return self._parse_window(self._parse_id_var(), alias=True) + def _parse_respect_or_ignore_nulls( + self, this: t.Optional[exp.Expression] + ) -> t.Optional[exp.Expression]: + if self._match(TokenType.IGNORE_NULLS): + return self.expression(exp.IgnoreNulls, this=this) + if self._match(TokenType.RESPECT_NULLS): + return self.expression(exp.RespectNulls, this=this) + return this + def _parse_window( self, this: t.Optional[exp.Expression], alias: bool = False ) -> t.Optional[exp.Expression]: @@ -3768,10 +3785,7 @@ class Parser(metaclass=_Parser): # (https://docs.oracle.com/en/database/oracle/oracle-database/19/sqlrf/img_text/first_value.html) # and Snowflake chose to do the same for familiarity # https://docs.snowflake.com/en/sql-reference/functions/first_value.html#usage-notes - if self._match(TokenType.IGNORE_NULLS): - this = self.expression(exp.IgnoreNulls, this=this) - elif self._match(TokenType.RESPECT_NULLS): - this = self.expression(exp.RespectNulls, this=this) + this = self._parse_respect_or_ignore_nulls(this) # bigquery select from window x AS (partition by ...) if alias: @@ -3975,9 +3989,7 @@ class Parser(metaclass=_Parser): items = [parse_result] if parse_result is not None else [] while self._match(sep): - if parse_result and self._prev_comments: - parse_result.comments = self._prev_comments - + self._add_comments(parse_result) parse_result = parse_method() if parse_result is not None: items.append(parse_result) @@ -4345,13 +4357,14 @@ class Parser(metaclass=_Parser): self._retreat(index) return None - def _match(self, token_type, advance=True): + def _match(self, token_type, advance=True, expression=None): if not self._curr: return None if self._curr.token_type == token_type: if advance: self._advance() + self._add_comments(expression) return True return None @@ -4379,16 +4392,12 @@ class Parser(metaclass=_Parser): return None def _match_l_paren(self, expression=None): - if not self._match(TokenType.L_PAREN): + if not self._match(TokenType.L_PAREN, expression=expression): self.raise_error("Expecting (") - if expression and self._prev_comments: - expression.comments = self._prev_comments def _match_r_paren(self, expression=None): - if not self._match(TokenType.R_PAREN): + if not self._match(TokenType.R_PAREN, expression=expression): self.raise_error("Expecting )") - if expression and self._prev_comments: - expression.comments = self._prev_comments def _match_texts(self, texts, advance=True): if self._curr and self._curr.text.upper() in texts: diff --git a/sqlglot/tokens.py b/sqlglot/tokens.py index 64c1f92..5e50b7c 100644 --- a/sqlglot/tokens.py +++ b/sqlglot/tokens.py @@ -84,6 +84,10 @@ class TokenType(AutoName): UINT = auto() BIGINT = auto() UBIGINT = auto() + INT128 = auto() + UINT128 = auto() + INT256 = auto() + UINT256 = auto() FLOAT = auto() DOUBLE = auto() DECIMAL = auto() @@ -774,8 +778,6 @@ class Tokenizer(metaclass=_Tokenizer): "_end", "_peek", "_prev_token_line", - "_prev_token_comments", - "_prev_token_type", ) def __init__(self) -> None: @@ -795,8 +797,6 @@ class Tokenizer(metaclass=_Tokenizer): self._end = False self._peek = "" self._prev_token_line = -1 - self._prev_token_comments: t.List[str] = [] - self._prev_token_type: t.Optional[TokenType] = None def tokenize(self, sql: str) -> t.List[Token]: """Returns a list of tokens corresponding to the SQL string `sql`.""" @@ -846,7 +846,7 @@ class Tokenizer(metaclass=_Tokenizer): return self.sql[start:end] return "" - def _advance(self, i: int = 1) -> None: + def _advance(self, i: int = 1, alnum: bool = False) -> None: if self.WHITE_SPACE.get(self._char) is TokenType.BREAK: self._col = 1 self._line += 1 @@ -858,14 +858,30 @@ class Tokenizer(metaclass=_Tokenizer): self._char = self.sql[self._current - 1] self._peek = "" if self._end else self.sql[self._current] + if alnum and self._char.isalnum(): + _col = self._col + _current = self._current + _end = self._end + _peek = self._peek + + while _peek.isalnum(): + _col += 1 + _current += 1 + _end = _current >= self.size + _peek = "" if _end else self.sql[_current] + + self._col = _col + self._current = _current + self._end = _end + self._peek = _peek + self._char = self.sql[_current - 1] + @property def _text(self) -> str: return self.sql[self._start : self._current] def _add(self, token_type: TokenType, text: t.Optional[str] = None) -> None: self._prev_token_line = self._line - self._prev_token_comments = self._comments - self._prev_token_type = token_type self.tokens.append( Token( token_type, @@ -966,13 +982,13 @@ class Tokenizer(metaclass=_Tokenizer): comment_end_size = len(comment_end) while not self._end and self._chars(comment_end_size) != comment_end: - self._advance() + self._advance(alnum=True) self._comments.append(self._text[comment_start_size : -comment_end_size + 1]) self._advance(comment_end_size - 1) else: while not self._end and not self.WHITE_SPACE.get(self._peek) is TokenType.BREAK: - self._advance() + self._advance(alnum=True) self._comments.append(self._text[comment_start_size:]) # Leading comment is attached to the succeeding token, whilst trailing comment to the preceding. @@ -988,9 +1004,9 @@ class Tokenizer(metaclass=_Tokenizer): if self._char == "0": peek = self._peek.upper() if peek == "B": - return self._scan_bits() + return self._scan_bits() if self._BIT_STRINGS else self._add(TokenType.NUMBER) elif peek == "X": - return self._scan_hex() + return self._scan_hex() if self._HEX_STRINGS else self._add(TokenType.NUMBER) decimal = False scientific = 0 @@ -1033,7 +1049,9 @@ class Tokenizer(metaclass=_Tokenizer): self._advance() value = self._extract_value() try: - self._add(TokenType.BIT_STRING, f"{int(value, 2)}") + # If `value` can't be converted to a binary, fallback to tokenizing it as an identifier + int(value, 2) + self._add(TokenType.BIT_STRING, value[2:]) # Drop the 0b except ValueError: self._add(TokenType.IDENTIFIER) @@ -1041,7 +1059,9 @@ class Tokenizer(metaclass=_Tokenizer): self._advance() value = self._extract_value() try: - self._add(TokenType.HEX_STRING, f"{int(value, 16)}") + # If `value` can't be converted to a hex, fallback to tokenizing it as an identifier + int(value, 16) + self._add(TokenType.HEX_STRING, value[2:]) # Drop the 0x except ValueError: self._add(TokenType.IDENTIFIER) @@ -1049,7 +1069,7 @@ class Tokenizer(metaclass=_Tokenizer): while True: char = self._peek.strip() if char and char not in self.SINGLE_TOKENS: - self._advance() + self._advance(alnum=True) else: break @@ -1066,7 +1086,7 @@ class Tokenizer(metaclass=_Tokenizer): self._add(TokenType.NATIONAL if quote[0].upper() == "N" else TokenType.STRING, text) return True - # X'1234, b'0110', E'\\\\\' etc. + # X'1234', b'0110', E'\\\\\' etc. def _scan_formatted_string(self, string_start: str) -> bool: if string_start in self._HEX_STRINGS: delimiters = self._HEX_STRINGS @@ -1087,60 +1107,43 @@ class Tokenizer(metaclass=_Tokenizer): string_end = delimiters[string_start] text = self._extract_string(string_end) - if base is None: - self._add(token_type, text) - else: + if base: try: - self._add(token_type, f"{int(text, base)}") + int(text, base) except: raise RuntimeError( f"Numeric string contains invalid characters from {self._line}:{self._start}" ) + self._add(token_type, text) return True def _scan_identifier(self, identifier_end: str) -> None: - text = "" - identifier_end_is_escape = identifier_end in self._IDENTIFIER_ESCAPES - - while True: - if self._end: - raise RuntimeError(f"Missing {identifier_end} from {self._line}:{self._start}") - - self._advance() - if self._char == identifier_end: - if identifier_end_is_escape and self._peek == identifier_end: - text += identifier_end - self._advance() - continue - - break - - text += self._char - + self._advance() + text = self._extract_string(identifier_end, self._IDENTIFIER_ESCAPES) self._add(TokenType.IDENTIFIER, text) def _scan_var(self) -> None: while True: char = self._peek.strip() if char and (char in self.VAR_SINGLE_TOKENS or char not in self.SINGLE_TOKENS): - self._advance() + self._advance(alnum=True) else: break + self._add( TokenType.VAR - if self._prev_token_type == TokenType.PARAMETER + if self.tokens and self.tokens[-1].token_type == TokenType.PARAMETER else self.KEYWORDS.get(self._text.upper(), TokenType.VAR) ) - def _extract_string(self, delimiter: str) -> str: + def _extract_string(self, delimiter: str, escapes=None) -> str: text = "" delim_size = len(delimiter) + escapes = self._STRING_ESCAPES if escapes is None else escapes while True: - if self._char in self._STRING_ESCAPES and ( - self._peek == delimiter or self._peek in self._STRING_ESCAPES - ): + if self._char in escapes and (self._peek == delimiter or self._peek in escapes): if self._peek == delimiter: text += self._peek else: @@ -1158,7 +1161,9 @@ class Tokenizer(metaclass=_Tokenizer): if self._end: raise RuntimeError(f"Missing {delimiter} from {self._line}:{self._start}") - text += self._char - self._advance() + + current = self._current - 1 + self._advance(alnum=True) + text += self.sql[current : self._current - 1] return text diff --git a/sqlglot/transforms.py b/sqlglot/transforms.py index 00f278e..3643cd7 100644 --- a/sqlglot/transforms.py +++ b/sqlglot/transforms.py @@ -121,20 +121,9 @@ def remove_precision_parameterized_types(expression: exp.Expression) -> exp.Expr Some dialects only allow the precision for parameterized types to be defined in the DDL and not in other expressions. This transforms removes the precision from parameterized types in expressions. """ - return expression.transform( - lambda node: exp.DataType( - **{ - **node.args, - "expressions": [ - node_expression - for node_expression in node.expressions - if isinstance(node_expression, exp.DataType) - ], - } - ) - if isinstance(node, exp.DataType) - else node, - ) + for node in expression.find_all(exp.DataType): + node.set("expressions", [e for e in node.expressions if isinstance(e, exp.DataType)]) + return expression def unnest_to_explode(expression: exp.Expression) -> exp.Expression: @@ -240,12 +229,36 @@ def remove_target_from_merge(expression: exp.Expression) -> exp.Expression: return expression +def remove_within_group_for_percentiles(expression: exp.Expression) -> exp.Expression: + if ( + isinstance(expression, exp.WithinGroup) + and isinstance(expression.this, (exp.PercentileCont, exp.PercentileDisc)) + and isinstance(expression.expression, exp.Order) + ): + quantile = expression.this.this + input_value = t.cast(exp.Ordered, expression.find(exp.Ordered)).this + return expression.replace(exp.ApproxQuantile(this=input_value, quantile=quantile)) + + return expression + + +def unqualify_pivot_columns(expression: exp.Expression) -> exp.Expression: + if isinstance(expression, exp.Pivot): + expression.args["field"].transform( + lambda node: exp.column(node.output_name) if isinstance(node, exp.Column) else node, + copy=False, + ) + + return expression + + def preprocess( transforms: t.List[t.Callable[[exp.Expression], exp.Expression]], ) -> t.Callable[[Generator, exp.Expression], str]: """ Creates a new transform by chaining a sequence of transformations and converts the resulting - expression to SQL, using an appropriate `Generator.TRANSFORMS` function. + expression to SQL, using either the "_sql" method corresponding to the resulting expression, + or the appropriate `Generator.TRANSFORMS` function (when applicable -- see below). Args: transforms: sequence of transform functions. These will be called in order. @@ -255,17 +268,28 @@ def preprocess( """ def _to_sql(self, expression: exp.Expression) -> str: + expression_type = type(expression) + expression = transforms[0](expression.copy()) for t in transforms[1:]: expression = t(expression) - return getattr(self, expression.key + "_sql")(expression) - return _to_sql + _sql_handler = getattr(self, expression.key + "_sql", None) + if _sql_handler: + return _sql_handler(expression) + + transforms_handler = self.TRANSFORMS.get(type(expression)) + if transforms_handler: + # Ensures we don't enter an infinite loop. This can happen when the original expression + # has the same type as the final expression and there's no _sql method available for it, + # because then it'd re-enter _to_sql. + if expression_type is type(expression): + raise ValueError( + f"Expression type {expression.__class__.__name__} requires a _sql method in order to be transformed." + ) + return transforms_handler(self, expression) -UNALIAS_GROUP = {exp.Group: preprocess([unalias_group])} -ELIMINATE_DISTINCT_ON = {exp.Select: preprocess([eliminate_distinct_on])} -ELIMINATE_QUALIFY = {exp.Select: preprocess([eliminate_qualify])} -REMOVE_PRECISION_PARAMETERIZED_TYPES = { - exp.Cast: preprocess([remove_precision_parameterized_types]) -} + raise ValueError(f"Unsupported expression type {expression.__class__.__name__}.") + + return _to_sql diff --git a/tests/dataframe/integration/dataframe_validator.py b/tests/dataframe/integration/dataframe_validator.py index 16f8922..c84a342 100644 --- a/tests/dataframe/integration/dataframe_validator.py +++ b/tests/dataframe/integration/dataframe_validator.py @@ -3,17 +3,13 @@ import unittest import warnings import sqlglot -from sqlglot.helper import PYTHON_VERSION from tests.helpers import SKIP_INTEGRATION if t.TYPE_CHECKING: from pyspark.sql import DataFrame as SparkDataFrame -@unittest.skipIf( - SKIP_INTEGRATION or PYTHON_VERSION > (3, 10), - "Skipping Integration Tests since `SKIP_INTEGRATION` is set", -) +@unittest.skipIf(SKIP_INTEGRATION, "Skipping Integration Tests since `SKIP_INTEGRATION` is set") class DataFrameValidator(unittest.TestCase): spark = None sqlglot = None diff --git a/tests/dialects/test_bigquery.py b/tests/dialects/test_bigquery.py index 703b7dc..87bba6f 100644 --- a/tests/dialects/test_bigquery.py +++ b/tests/dialects/test_bigquery.py @@ -6,10 +6,19 @@ class TestBigQuery(Validator): dialect = "bigquery" def test_bigquery(self): + self.validate_identity("DATE_TRUNC(col, WEEK(MONDAY))") + self.validate_identity("SELECT b'abc'") + self.validate_identity("""SELECT * FROM UNNEST(ARRAY>[1, 2])""") self.validate_identity("SELECT AS STRUCT 1 AS a, 2 AS b") + self.validate_identity("SELECT DISTINCT AS STRUCT 1 AS a, 2 AS b") self.validate_identity("SELECT AS VALUE STRUCT(1 AS a, 2 AS b)") self.validate_identity("SELECT STRUCT>(['2023-01-17'])") self.validate_identity("SELECT * FROM q UNPIVOT(values FOR quarter IN (b, c))") + self.validate_identity("""CREATE TABLE x (a STRUCT>)""") + self.validate_identity("""CREATE TABLE x (a STRUCT)""") + self.validate_identity( + """CREATE TABLE x (a STRING OPTIONS (description='x')) OPTIONS (table_expiration_days=1)""" + ) self.validate_identity( "SELECT * FROM (SELECT * FROM `t`) AS a UNPIVOT((c) FOR c_name IN (v1, v2))" ) @@ -97,6 +106,16 @@ class TestBigQuery(Validator): "spark": "CAST(a AS LONG)", }, ) + self.validate_all( + "CAST(a AS BYTES)", + write={ + "bigquery": "CAST(a AS BYTES)", + "duckdb": "CAST(a AS BLOB)", + "presto": "CAST(a AS VARBINARY)", + "hive": "CAST(a AS BINARY)", + "spark": "CAST(a AS BINARY)", + }, + ) self.validate_all( "CAST(a AS NUMERIC)", write={ @@ -173,7 +192,6 @@ class TestBigQuery(Validator): "current_datetime", write={ "bigquery": "CURRENT_DATETIME()", - "duckdb": "CURRENT_DATETIME()", "presto": "CURRENT_DATETIME()", "hive": "CURRENT_DATETIME()", "spark": "CURRENT_DATETIME()", @@ -183,7 +201,7 @@ class TestBigQuery(Validator): "current_time", write={ "bigquery": "CURRENT_TIME()", - "duckdb": "CURRENT_TIME()", + "duckdb": "CURRENT_TIME", "presto": "CURRENT_TIME()", "hive": "CURRENT_TIME()", "spark": "CURRENT_TIME()", @@ -193,7 +211,7 @@ class TestBigQuery(Validator): "current_timestamp", write={ "bigquery": "CURRENT_TIMESTAMP()", - "duckdb": "CURRENT_TIMESTAMP()", + "duckdb": "CURRENT_TIMESTAMP", "postgres": "CURRENT_TIMESTAMP", "presto": "CURRENT_TIMESTAMP", "hive": "CURRENT_TIMESTAMP()", @@ -204,7 +222,7 @@ class TestBigQuery(Validator): "current_timestamp()", write={ "bigquery": "CURRENT_TIMESTAMP()", - "duckdb": "CURRENT_TIMESTAMP()", + "duckdb": "CURRENT_TIMESTAMP", "postgres": "CURRENT_TIMESTAMP", "presto": "CURRENT_TIMESTAMP", "hive": "CURRENT_TIMESTAMP()", @@ -342,6 +360,18 @@ class TestBigQuery(Validator): "snowflake": "SELECT cola, colb FROM (VALUES (1, 'test')) AS tab(cola, colb)", }, ) + self.validate_all( + "SELECT cola, colb FROM (VALUES (1, 'test')) AS tab", + write={ + "bigquery": "SELECT cola, colb FROM UNNEST([STRUCT(1 AS _c0, 'test' AS _c1)])", + }, + ) + self.validate_all( + "SELECT cola, colb FROM (VALUES (1, 'test'))", + write={ + "bigquery": "SELECT cola, colb FROM UNNEST([STRUCT(1 AS _c0, 'test' AS _c1)])", + }, + ) self.validate_all( "SELECT cola, colb, colc FROM (VALUES (1, 'test', NULL)) AS tab(cola, colb, colc)", write={ diff --git a/tests/dialects/test_clickhouse.py b/tests/dialects/test_clickhouse.py index 9fd2b45..1060881 100644 --- a/tests/dialects/test_clickhouse.py +++ b/tests/dialects/test_clickhouse.py @@ -65,3 +65,24 @@ class TestClickhouse(Validator): self.validate_identity("WITH SUM(bytes) AS foo SELECT foo FROM system.parts") self.validate_identity("WITH (SELECT foo) AS bar SELECT bar + 5") self.validate_identity("WITH test1 AS (SELECT i + 1, j + 1 FROM test1) SELECT * FROM test1") + + def test_signed_and_unsigned_types(self): + data_types = [ + "UInt8", + "UInt16", + "UInt32", + "UInt64", + "UInt128", + "UInt256", + "Int8", + "Int16", + "Int32", + "Int64", + "Int128", + "Int256", + ] + for data_type in data_types: + self.validate_all( + f"pow(2, 32)::{data_type}", + write={"clickhouse": f"CAST(POWER(2, 32) AS {data_type})"}, + ) diff --git a/tests/dialects/test_dialect.py b/tests/dialects/test_dialect.py index bcbbfd6..f12273b 100644 --- a/tests/dialects/test_dialect.py +++ b/tests/dialects/test_dialect.py @@ -95,7 +95,7 @@ class TestDialect(Validator): self.validate_all( "CAST(a AS BINARY(4))", write={ - "bigquery": "CAST(a AS BINARY)", + "bigquery": "CAST(a AS BYTES)", "clickhouse": "CAST(a AS BINARY(4))", "drill": "CAST(a AS VARBINARY(4))", "duckdb": "CAST(a AS BLOB(4))", @@ -114,7 +114,7 @@ class TestDialect(Validator): self.validate_all( "CAST(a AS VARBINARY(4))", write={ - "bigquery": "CAST(a AS VARBINARY)", + "bigquery": "CAST(a AS BYTES)", "clickhouse": "CAST(a AS VARBINARY(4))", "duckdb": "CAST(a AS BLOB(4))", "mysql": "CAST(a AS VARBINARY(4))", diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py index 9e0040c..8c1b748 100644 --- a/tests/dialects/test_duckdb.py +++ b/tests/dialects/test_duckdb.py @@ -6,6 +6,9 @@ class TestDuckDB(Validator): dialect = "duckdb" def test_time(self): + self.validate_identity("SELECT CURRENT_DATE") + self.validate_identity("SELECT CURRENT_TIMESTAMP") + self.validate_all( "EPOCH(x)", read={ @@ -24,7 +27,7 @@ class TestDuckDB(Validator): "bigquery": "UNIX_TO_TIME(x / 1000)", "duckdb": "TO_TIMESTAMP(x / 1000)", "presto": "FROM_UNIXTIME(x / 1000)", - "spark": "FROM_UNIXTIME(x / 1000)", + "spark": "CAST(FROM_UNIXTIME(x / 1000) AS TIMESTAMP)", }, ) self.validate_all( @@ -124,18 +127,34 @@ class TestDuckDB(Validator): self.validate_identity("SELECT {'a': 1} AS x") self.validate_identity("SELECT {'a': {'b': {'c': 1}}, 'd': {'e': 2}} AS x") self.validate_identity("SELECT {'x': 1, 'y': 2, 'z': 3}") - self.validate_identity( - "SELECT {'yes': 'duck', 'maybe': 'goose', 'huh': NULL, 'no': 'heron'}" - ) self.validate_identity("SELECT {'key1': 'string', 'key2': 1, 'key3': 12.345}") self.validate_identity("SELECT ROW(x, x + 1, y) FROM (SELECT 1 AS x, 'a' AS y)") self.validate_identity("SELECT (x, x + 1, y) FROM (SELECT 1 AS x, 'a' AS y)") self.validate_identity("SELECT a.x FROM (SELECT {'x': 1, 'y': 2, 'z': 3} AS a)") self.validate_identity("ATTACH DATABASE ':memory:' AS new_database") + self.validate_identity( + "SELECT {'yes': 'duck', 'maybe': 'goose', 'huh': NULL, 'no': 'heron'}" + ) self.validate_identity( "SELECT a['x space'] FROM (SELECT {'x space': 1, 'y': 2, 'z': 3} AS a)" ) + self.validate_all("0b1010", write={"": "0 AS b1010"}) + self.validate_all("0x1010", write={"": "0 AS x1010"}) + self.validate_all( + """SELECT DATEDIFF('day', t1."A", t1."B") FROM "table" AS t1""", + write={ + "duckdb": """SELECT DATE_DIFF('day', t1."A", t1."B") FROM "table" AS t1""", + "trino": """SELECT DATE_DIFF('day', t1."A", t1."B") FROM "table" AS t1""", + }, + ) + self.validate_all( + "SELECT DATE_DIFF('day', DATE '2020-01-01', DATE '2020-01-05')", + write={ + "duckdb": "SELECT DATE_DIFF('day', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", + "trino": "SELECT DATE_DIFF('day', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", + }, + ) self.validate_all("x ~ y", write={"duckdb": "REGEXP_MATCHES(x, y)"}) self.validate_all("SELECT * FROM 'x.y'", write={"duckdb": 'SELECT * FROM "x.y"'}) self.validate_all( diff --git a/tests/dialects/test_mysql.py b/tests/dialects/test_mysql.py index 524d95e..f31b1b9 100644 --- a/tests/dialects/test_mysql.py +++ b/tests/dialects/test_mysql.py @@ -12,6 +12,7 @@ class TestMySQL(Validator): "duckdb": "CREATE TABLE z (a INT)", "mysql": "CREATE TABLE z (a INT) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARACTER SET=utf8 COLLATE=utf8_bin COMMENT='x'", "spark": "CREATE TABLE z (a INT) COMMENT 'x'", + "sqlite": "CREATE TABLE z (a INTEGER)", }, ) self.validate_all( @@ -24,6 +25,19 @@ class TestMySQL(Validator): "INSERT INTO x VALUES (1, 'a', 2.0) ON DUPLICATE KEY UPDATE SET x.id = 1" ) + self.validate_all( + "CREATE TABLE x (id int not null auto_increment, primary key (id))", + write={ + "sqlite": "CREATE TABLE x (id INTEGER NOT NULL AUTOINCREMENT PRIMARY KEY)", + }, + ) + self.validate_all( + "CREATE TABLE x (id int not null auto_increment)", + write={ + "sqlite": "CREATE TABLE x (id INTEGER NOT NULL)", + }, + ) + def test_identity(self): self.validate_identity("SELECT CURRENT_TIMESTAMP(6)") self.validate_identity("x ->> '$.name'") @@ -150,47 +164,81 @@ class TestMySQL(Validator): ) def test_hexadecimal_literal(self): - self.validate_all( - "SELECT 0xCC", - write={ - "mysql": "SELECT x'CC'", - "sqlite": "SELECT x'CC'", - "spark": "SELECT X'CC'", - "trino": "SELECT X'CC'", - "bigquery": "SELECT 0xCC", - "oracle": "SELECT 204", - }, - ) - self.validate_all( - "SELECT X'1A'", - write={ - "mysql": "SELECT x'1A'", - }, - ) - self.validate_all( - "SELECT 0xz", - write={ - "mysql": "SELECT `0xz`", - }, - ) + write_CC = { + "bigquery": "SELECT 0xCC", + "clickhouse": "SELECT 0xCC", + "databricks": "SELECT 204", + "drill": "SELECT 204", + "duckdb": "SELECT 204", + "hive": "SELECT 204", + "mysql": "SELECT x'CC'", + "oracle": "SELECT 204", + "postgres": "SELECT x'CC'", + "presto": "SELECT 204", + "redshift": "SELECT 204", + "snowflake": "SELECT x'CC'", + "spark": "SELECT X'CC'", + "sqlite": "SELECT x'CC'", + "starrocks": "SELECT x'CC'", + "tableau": "SELECT 204", + "teradata": "SELECT 204", + "trino": "SELECT X'CC'", + "tsql": "SELECT 0xCC", + } + write_CC_with_leading_zeros = { + "bigquery": "SELECT 0x0000CC", + "clickhouse": "SELECT 0x0000CC", + "databricks": "SELECT 204", + "drill": "SELECT 204", + "duckdb": "SELECT 204", + "hive": "SELECT 204", + "mysql": "SELECT x'0000CC'", + "oracle": "SELECT 204", + "postgres": "SELECT x'0000CC'", + "presto": "SELECT 204", + "redshift": "SELECT 204", + "snowflake": "SELECT x'0000CC'", + "spark": "SELECT X'0000CC'", + "sqlite": "SELECT x'0000CC'", + "starrocks": "SELECT x'0000CC'", + "tableau": "SELECT 204", + "teradata": "SELECT 204", + "trino": "SELECT X'0000CC'", + "tsql": "SELECT 0x0000CC", + } + + self.validate_all("SELECT X'1A'", write={"mysql": "SELECT x'1A'"}) + self.validate_all("SELECT 0xz", write={"mysql": "SELECT `0xz`"}) + self.validate_all("SELECT 0xCC", write=write_CC) + self.validate_all("SELECT 0xCC ", write=write_CC) + self.validate_all("SELECT x'CC'", write=write_CC) + self.validate_all("SELECT 0x0000CC", write=write_CC_with_leading_zeros) + self.validate_all("SELECT x'0000CC'", write=write_CC_with_leading_zeros) def test_bits_literal(self): - self.validate_all( - "SELECT 0b1011", - write={ - "mysql": "SELECT b'1011'", - "postgres": "SELECT b'1011'", - "oracle": "SELECT 11", - }, - ) - self.validate_all( - "SELECT B'1011'", - write={ - "mysql": "SELECT b'1011'", - "postgres": "SELECT b'1011'", - "oracle": "SELECT 11", - }, - ) + write_1011 = { + "bigquery": "SELECT 11", + "clickhouse": "SELECT 0b1011", + "databricks": "SELECT 11", + "drill": "SELECT 11", + "hive": "SELECT 11", + "mysql": "SELECT b'1011'", + "oracle": "SELECT 11", + "postgres": "SELECT b'1011'", + "presto": "SELECT 11", + "redshift": "SELECT 11", + "snowflake": "SELECT 11", + "spark": "SELECT 11", + "sqlite": "SELECT 11", + "mysql": "SELECT b'1011'", + "tableau": "SELECT 11", + "teradata": "SELECT 11", + "trino": "SELECT 11", + "tsql": "SELECT 11", + } + + self.validate_all("SELECT 0b1011", write=write_1011) + self.validate_all("SELECT b'1011'", write=write_1011) def test_string_literals(self): self.validate_all( diff --git a/tests/dialects/test_oracle.py b/tests/dialects/test_oracle.py index dd297d6..88c79fd 100644 --- a/tests/dialects/test_oracle.py +++ b/tests/dialects/test_oracle.py @@ -5,6 +5,8 @@ class TestOracle(Validator): dialect = "oracle" def test_oracle(self): + self.validate_identity("SELECT * FROM table_name@dblink_name.database_link_domain") + self.validate_identity("SELECT * FROM table_name SAMPLE (25) s") self.validate_identity("SELECT * FROM V$SESSION") self.validate_identity( "SELECT MIN(column_name) KEEP (DENSE_RANK FIRST ORDER BY column_name DESC) FROM table_name" @@ -17,7 +19,6 @@ class TestOracle(Validator): "": "IFNULL(NULL, 1)", }, ) - self.validate_all( "DATE '2022-01-01'", write={ @@ -28,6 +29,21 @@ class TestOracle(Validator): }, ) + self.validate_all( + "x::binary_double", + write={ + "oracle": "CAST(x AS DOUBLE PRECISION)", + "": "CAST(x AS DOUBLE)", + }, + ) + self.validate_all( + "x::binary_float", + write={ + "oracle": "CAST(x AS FLOAT)", + "": "CAST(x AS FLOAT)", + }, + ) + def test_join_marker(self): self.validate_identity("SELECT e1.x, e2.x FROM e e1, e e2 WHERE e1.y (+) = e2.y") self.validate_identity("SELECT e1.x, e2.x FROM e e1, e e2 WHERE e1.y = e2.y (+)") diff --git a/tests/dialects/test_postgres.py b/tests/dialects/test_postgres.py index e2f9c41..b535a84 100644 --- a/tests/dialects/test_postgres.py +++ b/tests/dialects/test_postgres.py @@ -98,6 +98,21 @@ class TestPostgres(Validator): self.validate_identity("STRING_AGG(x, ',' ORDER BY y DESC)") self.validate_identity("STRING_AGG(DISTINCT x, ',' ORDER BY y DESC)") self.validate_identity("SELECT CASE WHEN SUBSTRING('abcdefg') IN ('ab') THEN 1 ELSE 0 END") + self.validate_identity("COMMENT ON TABLE mytable IS 'this'") + self.validate_identity("SELECT e'\\xDEADBEEF'") + self.validate_identity("SELECT CAST(e'\\176' AS BYTEA)") + self.validate_identity("SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '...$') IN ('mas')") + self.validate_identity("SELECT TRIM(' X' FROM ' XXX ')") + self.validate_identity("SELECT TRIM(LEADING 'bla' FROM ' XXX ' COLLATE utf8_bin)") + self.validate_identity("""SELECT * FROM JSON_TO_RECORDSET(z) AS y("rank" INT)""") + self.validate_identity("x ~ 'y'") + self.validate_identity("x ~* 'y'") + self.validate_identity( + "SELECT SUM(x) OVER a, SUM(y) OVER b FROM c WINDOW a AS (PARTITION BY d), b AS (PARTITION BY e)" + ) + self.validate_identity( + "CREATE TABLE A (LIKE B INCLUDING CONSTRAINT INCLUDING COMPRESSION EXCLUDING COMMENTS)" + ) self.validate_identity( "SELECT CASE WHEN SUBSTRING('abcdefg' FROM 1) IN ('ab') THEN 1 ELSE 0 END" ) @@ -107,37 +122,31 @@ class TestPostgres(Validator): self.validate_identity( 'SELECT * FROM "x" WHERE SUBSTRING("x"."foo" FROM 1 FOR 2) IN (\'mas\')' ) - self.validate_identity("SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '...$') IN ('mas')") self.validate_identity( "SELECT * FROM x WHERE SUBSTRING('Thomas' FROM '%#\"o_a#\"_' FOR '#') IN ('mas')" ) self.validate_identity( "SELECT SUBSTRING('bla' + 'foo' || 'bar' FROM 3 - 1 + 5 FOR 4 + SOME_FUNC(arg1, arg2))" ) - self.validate_identity("SELECT TRIM(' X' FROM ' XXX ')") - self.validate_identity("SELECT TRIM(LEADING 'bla' FROM ' XXX ' COLLATE utf8_bin)") self.validate_identity( "SELECT TO_TIMESTAMP(1284352323.5), TO_TIMESTAMP('05 Dec 2000', 'DD Mon YYYY')" ) - self.validate_identity("COMMENT ON TABLE mytable IS 'this'") - self.validate_identity("SELECT e'\\xDEADBEEF'") - self.validate_identity("SELECT CAST(e'\\176' AS BYTEA)") + + self.validate_all( + "SELECT PERCENTILE_CONT(0.5) WITHIN GROUP (ORDER BY amount)", + write={ + "databricks": "SELECT PERCENTILE_APPROX(amount, 0.5)", + "presto": "SELECT APPROX_PERCENTILE(amount, 0.5)", + "spark": "SELECT PERCENTILE_APPROX(amount, 0.5)", + "trino": "SELECT APPROX_PERCENTILE(amount, 0.5)", + }, + ) self.validate_all( "e'x'", write={ "mysql": "x", }, ) - self.validate_identity("""SELECT * FROM JSON_TO_RECORDSET(z) AS y("rank" INT)""") - self.validate_identity( - "SELECT SUM(x) OVER a, SUM(y) OVER b FROM c WINDOW a AS (PARTITION BY d), b AS (PARTITION BY e)" - ) - self.validate_identity( - "CREATE TABLE A (LIKE B INCLUDING CONSTRAINT INCLUDING COMPRESSION EXCLUDING COMMENTS)" - ) - self.validate_identity("x ~ 'y'") - self.validate_identity("x ~* 'y'") - self.validate_all( "SELECT DATE_PART('isodow'::varchar(6), current_date)", write={ @@ -197,6 +206,33 @@ class TestPostgres(Validator): "trino": "SEQUENCE(TRY_CAST('2019-01-01' AS TIMESTAMP), CAST(CURRENT_TIMESTAMP AS TIMESTAMP), INTERVAL '1' day)", }, ) + self.validate_all( + "GENERATE_SERIES(a, b)", + write={ + "postgres": "GENERATE_SERIES(a, b)", + "presto": "SEQUENCE(a, b)", + "trino": "SEQUENCE(a, b)", + "tsql": "GENERATE_SERIES(a, b)", + }, + ) + self.validate_all( + "GENERATE_SERIES(a, b)", + read={ + "postgres": "GENERATE_SERIES(a, b)", + "presto": "SEQUENCE(a, b)", + "trino": "SEQUENCE(a, b)", + "tsql": "GENERATE_SERIES(a, b)", + }, + ) + self.validate_all( + "SELECT * FROM t CROSS JOIN GENERATE_SERIES(2, 4)", + write={ + "postgres": "SELECT * FROM t CROSS JOIN GENERATE_SERIES(2, 4)", + "presto": "SELECT * FROM t CROSS JOIN UNNEST(SEQUENCE(2, 4))", + "trino": "SELECT * FROM t CROSS JOIN UNNEST(SEQUENCE(2, 4))", + "tsql": "SELECT * FROM t CROSS JOIN GENERATE_SERIES(2, 4)", + }, + ) self.validate_all( "END WORK AND NO CHAIN", write={"postgres": "COMMIT AND NO CHAIN"}, @@ -464,6 +500,14 @@ class TestPostgres(Validator): }, ) + self.validate_all( + "x / y ^ z", + write={ + "": "x / POWER(y, z)", + "postgres": "x / y ^ z", + }, + ) + self.assertIsInstance(parse_one("id::UUID", read="postgres"), exp.TryCast) def test_bool_or(self): diff --git a/tests/dialects/test_presto.py b/tests/dialects/test_presto.py index 3080476..15962cc 100644 --- a/tests/dialects/test_presto.py +++ b/tests/dialects/test_presto.py @@ -6,6 +6,26 @@ class TestPresto(Validator): dialect = "presto" def test_cast(self): + self.validate_all( + "FROM_BASE64(x)", + read={ + "hive": "UNBASE64(x)", + }, + write={ + "hive": "UNBASE64(x)", + "presto": "FROM_BASE64(x)", + }, + ) + self.validate_all( + "TO_BASE64(x)", + read={ + "hive": "BASE64(x)", + }, + write={ + "hive": "BASE64(x)", + "presto": "TO_BASE64(x)", + }, + ) self.validate_all( "CAST(a AS ARRAY(INT))", write={ @@ -105,6 +125,13 @@ class TestPresto(Validator): "spark": "SIZE(x)", }, ) + self.validate_all( + "ARRAY_JOIN(x, '-', 'a')", + write={ + "hive": "CONCAT_WS('-', x)", + "spark": "ARRAY_JOIN(x, '-', 'a')", + }, + ) def test_interval_plural_to_singular(self): # Microseconds, weeks and quarters are not supported in Presto/Trino INTERVAL literals @@ -133,6 +160,14 @@ class TestPresto(Validator): self.validate_identity("TRIM(a, b)") self.validate_identity("VAR_POP(a)") + self.validate_all( + "SELECT FROM_UNIXTIME(col) FROM tbl", + write={ + "presto": "SELECT FROM_UNIXTIME(col) FROM tbl", + "spark": "SELECT CAST(FROM_UNIXTIME(col) AS TIMESTAMP) FROM tbl", + "trino": "SELECT FROM_UNIXTIME(col) FROM tbl", + }, + ) self.validate_all( "DATE_FORMAT(x, '%Y-%m-%d %H:%i:%S')", write={ @@ -181,7 +216,7 @@ class TestPresto(Validator): "duckdb": "TO_TIMESTAMP(x)", "presto": "FROM_UNIXTIME(x)", "hive": "FROM_UNIXTIME(x)", - "spark": "FROM_UNIXTIME(x)", + "spark": "CAST(FROM_UNIXTIME(x) AS TIMESTAMP)", }, ) self.validate_all( @@ -583,6 +618,14 @@ class TestPresto(Validator): }, ) + self.validate_all( + "JSON_FORMAT(JSON 'x')", + write={ + "presto": "JSON_FORMAT(CAST('x' AS JSON))", + "spark": "TO_JSON('x')", + }, + ) + def test_encode_decode(self): self.validate_all( "TO_UTF8(x)", diff --git a/tests/dialects/test_redshift.py b/tests/dialects/test_redshift.py index e5bd0e5..f75480e 100644 --- a/tests/dialects/test_redshift.py +++ b/tests/dialects/test_redshift.py @@ -101,7 +101,22 @@ class TestRedshift(Validator): self.validate_all( "SELECT DISTINCT ON (a) a, b FROM x ORDER BY c DESC", write={ + "bigquery": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE `_row_number` = 1", + "databricks": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE `_row_number` = 1", + "drill": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE `_row_number` = 1", + "hive": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE `_row_number` = 1", + "mysql": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC) AS _row_number FROM x) WHERE `_row_number` = 1", + "oracle": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', + "presto": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', "redshift": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC) AS _row_number FROM x) WHERE "_row_number" = 1', + "snowflake": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC) AS _row_number FROM x) WHERE "_row_number" = 1', + "spark": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE `_row_number` = 1", + "sqlite": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', + "starrocks": "SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC) AS _row_number FROM x) WHERE `_row_number` = 1", + "tableau": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', + "teradata": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', + "trino": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', + "tsql": 'SELECT a, b FROM (SELECT a, b, ROW_NUMBER() OVER (PARTITION BY a ORDER BY c DESC NULLS FIRST) AS _row_number FROM x) WHERE "_row_number" = 1', }, ) self.validate_all( diff --git a/tests/dialects/test_snowflake.py b/tests/dialects/test_snowflake.py index 5c8b096..57ee235 100644 --- a/tests/dialects/test_snowflake.py +++ b/tests/dialects/test_snowflake.py @@ -227,7 +227,7 @@ class TestSnowflake(Validator): write={ "bigquery": "SELECT UNIX_TO_TIME(1659981729)", "snowflake": "SELECT TO_TIMESTAMP(1659981729)", - "spark": "SELECT FROM_UNIXTIME(1659981729)", + "spark": "SELECT CAST(FROM_UNIXTIME(1659981729) AS TIMESTAMP)", }, ) self.validate_all( @@ -243,7 +243,7 @@ class TestSnowflake(Validator): write={ "bigquery": "SELECT UNIX_TO_TIME('1659981729')", "snowflake": "SELECT TO_TIMESTAMP('1659981729')", - "spark": "SELECT FROM_UNIXTIME('1659981729')", + "spark": "SELECT CAST(FROM_UNIXTIME('1659981729') AS TIMESTAMP)", }, ) self.validate_all( @@ -401,7 +401,7 @@ class TestSnowflake(Validator): self.validate_all( r"SELECT FIRST_VALUE(TABLE1.COLUMN1 RESPECT NULLS) OVER (PARTITION BY RANDOM_COLUMN1, RANDOM_COLUMN2 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS MY_ALIAS FROM TABLE1", write={ - "snowflake": r"SELECT FIRST_VALUE(TABLE1.COLUMN1) OVER (PARTITION BY RANDOM_COLUMN1, RANDOM_COLUMN2 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS MY_ALIAS FROM TABLE1" + "snowflake": r"SELECT FIRST_VALUE(TABLE1.COLUMN1 RESPECT NULLS) OVER (PARTITION BY RANDOM_COLUMN1, RANDOM_COLUMN2 ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS MY_ALIAS FROM TABLE1" }, ) self.validate_all( @@ -426,29 +426,18 @@ class TestSnowflake(Validator): def test_sample(self): self.validate_identity("SELECT * FROM testtable TABLESAMPLE BERNOULLI (20.3)") self.validate_identity("SELECT * FROM testtable TABLESAMPLE (100)") + self.validate_identity("SELECT * FROM testtable TABLESAMPLE SYSTEM (3) SEED (82)") + self.validate_identity("SELECT * FROM testtable TABLESAMPLE (10 ROWS)") + self.validate_identity("SELECT * FROM testtable SAMPLE (10)") + self.validate_identity("SELECT * FROM testtable SAMPLE ROW (0)") + self.validate_identity("SELECT a FROM test SAMPLE BLOCK (0.5) SEED (42)") self.validate_identity( "SELECT i, j FROM table1 AS t1 INNER JOIN table2 AS t2 TABLESAMPLE (50) WHERE t2.j = t1.i" ) self.validate_identity( "SELECT * FROM (SELECT * FROM t1 JOIN t2 ON t1.a = t2.c) TABLESAMPLE (1)" ) - self.validate_identity("SELECT * FROM testtable TABLESAMPLE SYSTEM (3) SEED (82)") - self.validate_identity("SELECT * FROM testtable TABLESAMPLE (10 ROWS)") - self.validate_all( - "SELECT * FROM testtable SAMPLE (10)", - write={"snowflake": "SELECT * FROM testtable TABLESAMPLE (10)"}, - ) - self.validate_all( - "SELECT * FROM testtable SAMPLE ROW (0)", - write={"snowflake": "SELECT * FROM testtable TABLESAMPLE ROW (0)"}, - ) - self.validate_all( - "SELECT a FROM test SAMPLE BLOCK (0.5) SEED (42)", - write={ - "snowflake": "SELECT a FROM test TABLESAMPLE BLOCK (0.5) SEED (42)", - }, - ) self.validate_all( """ SELECT i, j @@ -458,13 +447,13 @@ class TestSnowflake(Validator): table2 AS t2 SAMPLE (50) -- 50% of rows in table2 WHERE t2.j = t1.i""", write={ - "snowflake": "SELECT i, j FROM table1 AS t1 TABLESAMPLE (25) /* 25% of rows in table1 */ INNER JOIN table2 AS t2 TABLESAMPLE (50) /* 50% of rows in table2 */ WHERE t2.j = t1.i", + "snowflake": "SELECT i, j FROM table1 AS t1 SAMPLE (25) /* 25% of rows in table1 */ INNER JOIN table2 AS t2 SAMPLE (50) /* 50% of rows in table2 */ WHERE t2.j = t1.i", }, ) self.validate_all( "SELECT * FROM testtable SAMPLE BLOCK (0.012) REPEATABLE (99992)", write={ - "snowflake": "SELECT * FROM testtable TABLESAMPLE BLOCK (0.012) SEED (99992)", + "snowflake": "SELECT * FROM testtable SAMPLE BLOCK (0.012) SEED (99992)", }, ) diff --git a/tests/dialects/test_spark.py b/tests/dialects/test_spark.py index bfaed53..be03b4e 100644 --- a/tests/dialects/test_spark.py +++ b/tests/dialects/test_spark.py @@ -215,40 +215,45 @@ TBLPROPERTIES ( self.validate_identity("SPLIT(str, pattern, lim)") self.validate_all( - "BOOLEAN(x)", - write={ - "": "CAST(x AS BOOLEAN)", - "spark": "CAST(x AS BOOLEAN)", + "SELECT * FROM produce PIVOT(SUM(produce.sales) FOR quarter IN ('Q1', 'Q2'))", + read={ + "snowflake": "SELECT * FROM produce PIVOT (SUM(produce.sales) FOR produce.quarter IN ('Q1', 'Q2'))", }, ) self.validate_all( - "INT(x)", - write={ - "": "CAST(x AS INT)", - "spark": "CAST(x AS INT)", - }, - ) - self.validate_all( - "STRING(x)", - write={ - "": "CAST(x AS TEXT)", - "spark": "CAST(x AS STRING)", + "SELECT * FROM produce AS p PIVOT(SUM(p.sales) AS sales FOR quarter IN ('Q1' AS Q1, 'Q2' AS Q1))", + read={ + "bigquery": "SELECT * FROM produce AS p PIVOT(SUM(p.sales) AS sales FOR p.quarter IN ('Q1' AS Q1, 'Q2' AS Q1))", }, ) self.validate_all( - "DATE(x)", + "SELECT DATEDIFF(MONTH, '2020-01-01', '2020-03-05')", write={ - "": "CAST(x AS DATE)", - "spark": "CAST(x AS DATE)", + "databricks": "SELECT DATEDIFF(MONTH, TO_DATE('2020-01-01'), TO_DATE('2020-03-05'))", + "hive": "SELECT MONTHS_BETWEEN(TO_DATE('2020-03-05'), TO_DATE('2020-01-01'))", + "presto": "SELECT DATE_DIFF('MONTH', CAST(SUBSTR(CAST('2020-01-01' AS VARCHAR), 1, 10) AS DATE), CAST(SUBSTR(CAST('2020-03-05' AS VARCHAR), 1, 10) AS DATE))", + "spark": "SELECT DATEDIFF(MONTH, TO_DATE('2020-01-01'), TO_DATE('2020-03-05'))", + "spark2": "SELECT MONTHS_BETWEEN(TO_DATE('2020-03-05'), TO_DATE('2020-01-01'))", + "trino": "SELECT DATE_DIFF('MONTH', CAST(SUBSTR(CAST('2020-01-01' AS VARCHAR), 1, 10) AS DATE), CAST(SUBSTR(CAST('2020-03-05' AS VARCHAR), 1, 10) AS DATE))", }, ) + + for data_type in ("BOOLEAN", "DATE", "DOUBLE", "FLOAT", "INT", "TIMESTAMP"): + self.validate_all( + f"{data_type}(x)", + write={ + "": f"CAST(x AS {data_type})", + "spark": f"CAST(x AS {data_type})", + }, + ) self.validate_all( - "TIMESTAMP(x)", + "STRING(x)", write={ - "": "CAST(x AS TIMESTAMP)", - "spark": "CAST(x AS TIMESTAMP)", + "": "CAST(x AS TEXT)", + "spark": "CAST(x AS STRING)", }, ) + self.validate_all( "CAST(x AS TIMESTAMP)", read={"trino": "CAST(x AS TIMESTAMP(6) WITH TIME ZONE)"} ) diff --git a/tests/dialects/test_starrocks.py b/tests/dialects/test_starrocks.py index b33231c..96e20da 100644 --- a/tests/dialects/test_starrocks.py +++ b/tests/dialects/test_starrocks.py @@ -10,3 +10,11 @@ class TestMySQL(Validator): def test_time(self): self.validate_identity("TIMESTAMP('2022-01-01')") + + def test_regex(self): + self.validate_all( + "SELECT REGEXP_LIKE(abc, '%foo%')", + write={ + "starrocks": "SELECT REGEXP(abc, '%foo%')", + }, + ) diff --git a/tests/dialects/test_tsql.py b/tests/dialects/test_tsql.py index b6e893c..3a3ac73 100644 --- a/tests/dialects/test_tsql.py +++ b/tests/dialects/test_tsql.py @@ -485,26 +485,30 @@ WHERE def test_date_diff(self): self.validate_identity("SELECT DATEDIFF(year, '2020/01/01', '2021/01/01')") + self.validate_all( "SELECT DATEDIFF(year, '2020/01/01', '2021/01/01')", write={ "tsql": "SELECT DATEDIFF(year, '2020/01/01', '2021/01/01')", - "spark": "SELECT MONTHS_BETWEEN('2021/01/01', '2020/01/01') / 12", + "spark": "SELECT DATEDIFF(year, '2020/01/01', '2021/01/01')", + "spark2": "SELECT MONTHS_BETWEEN('2021/01/01', '2020/01/01') / 12", }, ) self.validate_all( "SELECT DATEDIFF(mm, 'start','end')", write={ - "spark": "SELECT MONTHS_BETWEEN('end', 'start')", - "tsql": "SELECT DATEDIFF(month, 'start', 'end')", "databricks": "SELECT DATEDIFF(month, 'start', 'end')", + "spark2": "SELECT MONTHS_BETWEEN('end', 'start')", + "tsql": "SELECT DATEDIFF(month, 'start', 'end')", }, ) self.validate_all( "SELECT DATEDIFF(quarter, 'start', 'end')", write={ - "spark": "SELECT MONTHS_BETWEEN('end', 'start') / 3", "databricks": "SELECT DATEDIFF(quarter, 'start', 'end')", + "spark": "SELECT DATEDIFF(quarter, 'start', 'end')", + "spark2": "SELECT MONTHS_BETWEEN('end', 'start') / 3", + "tsql": "SELECT DATEDIFF(quarter, 'start', 'end')", }, ) diff --git a/tests/fixtures/identity.sql b/tests/fixtures/identity.sql index a08a7a8..ea695c9 100644 --- a/tests/fixtures/identity.sql +++ b/tests/fixtures/identity.sql @@ -85,6 +85,7 @@ x IS TRUE x IS FALSE x IS TRUE IS TRUE x LIKE y IS TRUE +TRIM('a' || 'b') MAP() GREATEST(x) LEAST(y) @@ -104,6 +105,7 @@ ARRAY(time, foo) ARRAY(foo, time) ARRAY(LENGTH(waiter_name) > 0) ARRAY_CONTAINS(x, 1) +x.EXTRACT(1) EXTRACT(x FROM y) EXTRACT(DATE FROM y) EXTRACT(WEEK(monday) FROM created_at) @@ -215,6 +217,7 @@ SELECT COUNT(DISTINCT a, b) SELECT COUNT(DISTINCT a, b + 1) SELECT SUM(DISTINCT x) SELECT SUM(x IGNORE NULLS) AS x +SELECT COUNT(x RESPECT NULLS) SELECT TRUNCATE(a, b) SELECT ARRAY_AGG(DISTINCT x IGNORE NULLS ORDER BY a, b DESC LIMIT 10) AS x SELECT ARRAY_AGG(STRUCT(x, x AS y) ORDER BY z DESC) AS x @@ -820,3 +823,6 @@ JSON_OBJECT('x': 1 RETURNING VARBINARY FORMAT JSON ENCODING UTF8) SELECT if.x SELECT NEXT VALUE FOR db.schema.sequence_name SELECT NEXT VALUE FOR db.schema.sequence_name OVER (ORDER BY foo), col +SELECT PERCENTILE_CONT(x, 0.5) OVER () +SELECT PERCENTILE_CONT(x, 0.5 RESPECT NULLS) OVER () +SELECT PERCENTILE_CONT(x, 0.5 IGNORE NULLS) OVER () diff --git a/tests/fixtures/optimizer/qualify_columns.sql b/tests/fixtures/optimizer/qualify_columns.sql index 3013bba..f077647 100644 --- a/tests/fixtures/optimizer/qualify_columns.sql +++ b/tests/fixtures/optimizer/qualify_columns.sql @@ -4,6 +4,9 @@ SELECT a FROM x; SELECT x.a AS a FROM x AS x; +SELECT "a" FROM x; +SELECT x."a" AS "a" FROM x AS x; + # execute: false SELECT a FROM zz GROUP BY a ORDER BY a; SELECT zz.a AS a FROM zz AS zz GROUP BY zz.a ORDER BY a; @@ -212,6 +215,10 @@ SELECT x.a AS a FROM x AS x WHERE x.b IN (SELECT x.b AS b FROM y AS x); SELECT a FROM x AS i WHERE b IN (SELECT b FROM y AS j WHERE j.b IN (SELECT c FROM y AS k WHERE k.b = j.b)); SELECT i.a AS a FROM x AS i WHERE i.b IN (SELECT j.b AS b FROM y AS j WHERE j.b IN (SELECT k.c AS c FROM y AS k WHERE k.b = j.b)); +# execute: false +SELECT (SELECT n.a FROM n WHERE n.id = m.id) FROM m AS m; +SELECT (SELECT n.a AS a FROM n AS n WHERE n.id = m.id) AS _col_0 FROM m AS m; + -------------------------------------- -- Expand * -------------------------------------- diff --git a/tests/fixtures/optimizer/qualify_tables.sql b/tests/fixtures/optimizer/qualify_tables.sql index 2cea85d..0ad155a 100644 --- a/tests/fixtures/optimizer/qualify_tables.sql +++ b/tests/fixtures/optimizer/qualify_tables.sql @@ -15,3 +15,26 @@ WITH a AS (SELECT 1 FROM c.db.z AS z) SELECT 1 FROM a; SELECT (SELECT y.c FROM y AS y) FROM x; SELECT (SELECT y.c FROM c.db.y AS y) FROM c.db.x AS x; + +------------------------- +-- Expand join constructs +------------------------- + +-- This is valid in Trino, so we treat the (tbl AS tbl) as a "join construct" per postgres' terminology. +SELECT * FROM (tbl AS tbl) AS _q_0; +SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0; + +SELECT * FROM ((tbl AS tbl)) AS _q_0; +SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0; + +SELECT * FROM (((tbl AS tbl))) AS _q_0; +SELECT * FROM (SELECT * FROM c.db.tbl AS tbl) AS _q_0; + +SELECT * FROM (tbl1 AS tbl1 JOIN tbl2 AS tbl2 ON id1 = id2 JOIN tbl3 AS tbl3 ON id1 = id3) AS _q_0; +SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN c.db.tbl2 AS tbl2 ON id1 = id2 JOIN c.db.tbl3 AS tbl3 ON id1 = id3) AS _q_0; + +SELECT * FROM ((tbl1 AS tbl1 JOIN tbl2 AS tbl2 ON id1 = id2 JOIN tbl3 AS tbl3 ON id1 = id3)) AS _q_0; +SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN c.db.tbl2 AS tbl2 ON id1 = id2 JOIN c.db.tbl3 AS tbl3 ON id1 = id3) AS _q_0; + +SELECT * FROM (tbl1 AS tbl1 JOIN (tbl2 AS tbl2 JOIN tbl3 AS tbl3 ON id2 = id3) AS _q_0 ON id1 = id3) AS _q_1; +SELECT * FROM (SELECT * FROM c.db.tbl1 AS tbl1 JOIN (SELECT * FROM c.db.tbl2 AS tbl2 JOIN c.db.tbl3 AS tbl3 ON id2 = id3) AS _q_0 ON id1 = id3) AS _q_1; diff --git a/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql b/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql index 9168508..9908756 100644 --- a/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql +++ b/tests/fixtures/optimizer/tpc-ds/tpc-ds.sql @@ -6385,6 +6385,14 @@ WITH "tmp1" AS ( "item"."i_brand" IN ('amalgimporto #1', 'edu packscholar #1', 'exportiimporto #1', 'importoamalg #1') OR "item"."i_class" IN ('personal', 'portable', 'reference', 'self-help') ) + AND ( + "item"."i_brand" IN ('scholaramalgamalg #14', 'scholaramalgamalg #7', 'exportiunivamalg #9', 'scholaramalgamalg #9') + OR "item"."i_category" IN ('Women', 'Music', 'Men') + ) + AND ( + "item"."i_brand" IN ('scholaramalgamalg #14', 'scholaramalgamalg #7', 'exportiunivamalg #9', 'scholaramalgamalg #9') + OR "item"."i_class" IN ('accessories', 'classical', 'fragrances', 'pants') + ) AND ( "item"."i_category" IN ('Books', 'Children', 'Electronics') OR "item"."i_category" IN ('Women', 'Music', 'Men') @@ -7589,6 +7597,14 @@ WITH "tmp1" AS ( "item"."i_brand" IN ('amalgimporto #1', 'edu packscholar #1', 'exportiimporto #1', 'importoamalg #1') OR "item"."i_class" IN ('personal', 'portable', 'reference', 'self-help') ) + AND ( + "item"."i_brand" IN ('scholaramalgamalg #14', 'scholaramalgamalg #7', 'exportiunivamalg #9', 'scholaramalgamalg #9') + OR "item"."i_category" IN ('Women', 'Music', 'Men') + ) + AND ( + "item"."i_brand" IN ('scholaramalgamalg #14', 'scholaramalgamalg #7', 'exportiunivamalg #9', 'scholaramalgamalg #9') + OR "item"."i_class" IN ('accessories', 'classical', 'fragrances', 'pants') + ) AND ( "item"."i_category" IN ('Books', 'Children', 'Electronics') OR "item"."i_category" IN ('Women', 'Music', 'Men') diff --git a/tests/test_build.py b/tests/test_build.py index c4b97ce..509b857 100644 --- a/tests/test_build.py +++ b/tests/test_build.py @@ -19,6 +19,11 @@ from sqlglot import ( class TestBuild(unittest.TestCase): def test_build(self): x = condition("x") + x_plus_one = x + 1 + + # Make sure we're not mutating x by changing its parent to be x_plus_one + self.assertIsNone(x.parent) + self.assertNotEqual(id(x_plus_one.this), id(x)) for expression, sql, *dialect in [ (lambda: x + 1, "x + 1"), @@ -51,6 +56,7 @@ class TestBuild(unittest.TestCase): (lambda: x.neq(1), "x <> 1"), (lambda: x.isin(1, "2"), "x IN (1, '2')"), (lambda: x.isin(query="select 1"), "x IN (SELECT 1)"), + (lambda: x.between(1, 2), "x BETWEEN 1 AND 2"), (lambda: 1 + x + 2 + 3, "1 + x + 2 + 3"), (lambda: 1 + x * 2 + 3, "1 + (x * 2) + 3"), (lambda: x * 1 * 2 + 3, "(x * 1 * 2) + 3"), @@ -137,10 +143,14 @@ class TestBuild(unittest.TestCase): "SELECT x, y, z, a FROM tbl GROUP BY x, y, z, a", ), ( - lambda: select("x").distinct(True).from_("tbl"), + lambda: select("x").distinct("a", "b").from_("tbl"), + "SELECT DISTINCT ON (a, b) x FROM tbl", + ), + ( + lambda: select("x").distinct(distinct=True).from_("tbl"), "SELECT DISTINCT x FROM tbl", ), - (lambda: select("x").distinct(False).from_("tbl"), "SELECT x FROM tbl"), + (lambda: select("x").distinct(distinct=False).from_("tbl"), "SELECT x FROM tbl"), ( lambda: select("x").lateral("OUTER explode(y) tbl2 AS z").from_("tbl"), "SELECT x FROM tbl LATERAL VIEW OUTER EXPLODE(y) tbl2 AS z", @@ -583,6 +593,11 @@ class TestBuild(unittest.TestCase): "DELETE FROM tbl WHERE x = 1 RETURNING *", "postgres", ), + ( + lambda: exp.convert((exp.column("x"), exp.column("y"))).isin((1, 2), (3, 4)), + "(x, y) IN ((1, 2), (3, 4))", + "postgres", + ), ]: with self.subTest(sql): self.assertEqual(expression().sql(dialect[0] if dialect else None), sql) diff --git a/tests/test_expressions.py b/tests/test_expressions.py index eb0cf56..e7588b5 100644 --- a/tests/test_expressions.py +++ b/tests/test_expressions.py @@ -297,6 +297,9 @@ class TestExpressions(unittest.TestCase): expression = parse_one("SELECT a, b FROM x") self.assertEqual([s.sql() for s in expression.selects], ["a", "b"]) + expression = parse_one("(SELECT a, b FROM x)") + self.assertEqual([s.sql() for s in expression.selects], ["a", "b"]) + def test_alias_column_names(self): expression = parse_one("SELECT * FROM (SELECT * FROM x) AS y") subquery = expression.find(exp.Subquery) @@ -761,7 +764,7 @@ FROM foo""", "t", {"a": exp.DataType.build("TEXT"), "b": exp.DataType.build("TEXT")}, ).sql(), - "(VALUES (CAST(1 AS TEXT), CAST(2 AS TEXT)), (3, 4)) AS t(a, b)", + "(VALUES (1, 2), (3, 4)) AS t(a, b)", ) with self.assertRaises(ValueError): exp.values([(1, 2), (3, 4)], columns=["a"]) diff --git a/tests/test_optimizer.py b/tests/test_optimizer.py index d077570..423cb84 100644 --- a/tests/test_optimizer.py +++ b/tests/test_optimizer.py @@ -47,6 +47,7 @@ class TestOptimizer(unittest.TestCase): @classmethod def setUpClass(cls): + sqlglot.schema = MappingSchema() cls.conn = duckdb.connect() cls.conn.execute( """ @@ -221,6 +222,12 @@ class TestOptimizer(unittest.TestCase): self.check_file("pushdown_predicates", optimizer.pushdown_predicates.pushdown_predicates) def test_expand_laterals(self): + # check order of lateral expansion with no schema + self.assertEqual( + optimizer.optimize("SELECT a + 1 AS d, d + 1 AS e FROM x " "").sql(), + 'SELECT "x"."a" + 1 AS "d", "x"."a" + 2 AS "e" FROM "x" AS "x"', + ) + self.check_file( "expand_laterals", optimizer.expand_laterals.expand_laterals, @@ -612,6 +619,12 @@ FROM READ_CSV('tests/fixtures/optimizer/tpc-h/nation.csv.gz', 'delimiter', '|') expression = annotate_types(parse_one("CONCAT('A', 'B')")) self.assertEqual(expression.type.this, exp.DataType.Type.VARCHAR) + def test_root_subquery_annotation(self): + expression = annotate_types(parse_one("(SELECT 1, 2 FROM x) LIMIT 0")) + self.assertIsInstance(expression, exp.Subquery) + self.assertEqual(exp.DataType.Type.INT, expression.selects[0].type.this) + self.assertEqual(exp.DataType.Type.INT, expression.selects[1].type.this) + def test_recursive_cte(self): query = parse_one( """ diff --git a/tests/test_tokens.py b/tests/test_tokens.py index 987c60b..f70d70e 100644 --- a/tests/test_tokens.py +++ b/tests/test_tokens.py @@ -102,3 +102,14 @@ x""" (TokenType.SEMICOLON, ";"), ], ) + + tokens = tokenizer.tokenize("""'{{ var('x') }}'""") + tokens = [(token.token_type, token.text) for token in tokens] + self.assertEqual( + tokens, + [ + (TokenType.STRING, "{{ var("), + (TokenType.VAR, "x"), + (TokenType.STRING, ") }}"), + ], + ) diff --git a/tests/test_transpile.py b/tests/test_transpile.py index d68f6f8..ad8ec72 100644 --- a/tests/test_transpile.py +++ b/tests/test_transpile.py @@ -263,6 +263,18 @@ FROM v""", "(/* 1 */ 1 ) /* 2 */", "(1) /* 1 */ /* 2 */", ) + self.validate( + "select * from t where not a in (23) /*test*/ and b in (14)", + "SELECT * FROM t WHERE NOT a IN (23) /* test */ AND b IN (14)", + ) + self.validate( + "select * from t where a in (23) /*test*/ and b in (14)", + "SELECT * FROM t WHERE a IN (23) /* test */ AND b IN (14)", + ) + self.validate( + "select * from t where ((condition = 1)/*test*/)", + "SELECT * FROM t WHERE ((condition = 1) /* test */)", + ) def test_types(self): self.validate("INT 1", "CAST(1 AS INT)") @@ -324,9 +336,6 @@ FROM v""", ) self.validate("SELECT IF(a > 1, 1) FROM foo", "SELECT CASE WHEN a > 1 THEN 1 END FROM foo") - def test_ignore_nulls(self): - self.validate("SELECT COUNT(x RESPECT NULLS)", "SELECT COUNT(x)") - def test_with(self): self.validate( "WITH a AS (SELECT 1) WITH b AS (SELECT 2) SELECT *", @@ -482,7 +491,7 @@ FROM v""", self.validate("UNIX_TO_STR(123, 'y')", "FROM_UNIXTIME(123, 'y')", write="spark") self.validate( "UNIX_TO_TIME(123)", - "FROM_UNIXTIME(123)", + "CAST(FROM_UNIXTIME(123) AS TIMESTAMP)", write="spark", ) self.validate( -- cgit v1.2.3